Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Including illuminator

Subclass of:

351 - Optics: eye examining, vision testing and correcting

351200000 - EYE EXAMINING OR TESTING INSTRUMENT

351205000 - Objective type

Patent class list (only not empty are listed)

Deeper subclasses:

Entries
DocumentTitleDate
20130083289Module for Transmitting a Light Beam and Surgical Microscope with Deflecting Element and Fundus Imaging System - The invention is directed to a module for transmitting a light beam (04-04-2013
20110205492OPHTHALMOLOGICAL DEVICE - An ophthalmological device (08-25-2011
20130077051OPHTHALMIC ILLUMINATION DEVICE - An ophthalmic illumination device has an illuminating body. The illuminating body has a through-opening whose side wall is formed by a member made of an opalescent material. A light source is housed inside the illuminating body and a light guide adapted to radially convey light beams emitted by the light source towards an axis of the through-opening is positioned between the light source and the opalescent member. The ophthalmic illumination device can generate extremely homogenous shafts of light, while minimizing occurrences of dark portions.03-28-2013
20120262671Operating Microscope System - An operating microscope system (10-18-2012
20130027667OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus includes an integration unit configured to integrate a light emission amount of a light source for illuminating a subject's eye, a comparison unit configured to compare an integration value by the integration unit with a first reference value, and an initialization unit configured to initialize the integration value if the integration value exceeds the first reference value as the comparison result by the comparison unit.01-31-2013
20090115967Optical Scanning System - The present application is directed to an optical scanning system for medical applications, preferably in ophthalmology, which can be used for a large range of diagnostic and therapeutic applications. The optical scanning system comprises at least one controllable reflector which has an actuator and which is arranged in a first imaging beam path for deflecting at least one therapy beam and/or diagnosis beam over a work field in a scanning manner, a second imaging beam path for a fixation beam which is imaged on the work field in a spatially fixed manner with respect to the optical axis of the system, and a central control unit. The moving reflector is used to unify the two imaging beam paths and has dichroic characteristics so that it is transmissive for the fixation beam and reflective for the therapy beam and/or diagnosis beam(s). The second radiation source which serves to generate the fixation beam is controlled so as to be synchronized to the position of the moving reflector.05-07-2009
20100103377APPARATUS AND METHOD FOR MEASURING A DISPLACEMENT WITHIN AN EYE IN VIVO IN SITU, AND METHOD OF ASSESSMENT - The present invention relates to an apparatus and a method for measuring a displacement in vivo in situ of an eye, along with a method of assessing of an eye condition. More particularly, the apparatus and method of the present invention permits measurements of a displacement of at least two points in proximity of an optic disc, in the eye of a patient. For doing so, the apparatus uses a probing unit, an analog/digital converter and an analyzer. The displacement measured may include a pulsatile displacement of the lamina cribrosa, so as to perform early assessment of an eye condition.04-29-2010
20110013141OPHTHALMIC SURGERY MEASUREMENT SYSTEM - An ophthalmic apparatus for measuring spatial distances within a patient's eye is disclosed. The apparatus can be used to measure, for example, the capsular bag depth in an aphakic eye. The spatial measurement system can direct laser light into a patient's eye so that a portion of the light is scattered by the capsular bag. The scattered light can be directed to a detector where spots can be formed corresponding to the locations on the capsular bag from which the light was scattered. The distance from the cornea to the capsular bag can be determined based, for example, at least in part on the distance between the spots formed on the detector. In some embodiments, the apparatus can include a surgical microscope and/or a wavefront aberrometer. In some embodiments, an alignment system can be used to precisely position the apparatus relative to the patient's eye. The ophthalmic apparatus can be used for variety of ophthalmic procedures, such as predicting the postoperative position of an intraocular lens (IOL) and determining appropriate optical power for the IOL.01-20-2011
20130063699Ocular Error Detection - A system for determining refractive eye aberrations includes an optical arrangement having a first conjugate lens having an effective focal length (EFL) of about 150 millimeters and a second conjugate lens having an EFL of about 88.9 millimeters. The first and second conjugate lens are each positioned in a housing along a return light path and are separated by a distance of about 238.9 millimeters. The arrangement enables a range of measurable diopters of an eye to be between about −10 diopters to about +10 diopters.03-14-2013
20130188144CONTROL APPARATUS AND CONTROL METHOD - A control apparatus includes an irradiation unit configured to irradiate a measurement object with a measuring beam, a restriction unit configured to restrict the measuring beam from being incident on the measurement object and to reflect or scatter the measuring beam, and a polarization control unit configured to control, based on the measuring beam reflected or scattered by the restriction unit, polarization of the measuring beam.07-25-2013
20130162949CORNEAL HYDRATION SENSING SYSTEM - A corneal hydration sensing system includes an illumination system configured to provide an illumination beam of terahertz radiation, an optical system arranged in an optical path of the illumination system to relay and direct at least a portion of the illumination beam of terahertz radiation onto a cornea of a subject and to receive at least a portion of terahertz radiation reflected from the cornea to provide a return beam of terahertz radiation, and a detection system arranged in an optical path of the return beam of terahertz radiation. The detection system is configured to provide a detection signal from detecting at least a portion of the return beam of terahertz radiation. The corneal hydration sensing system also includes a signal processing system configured to communicate with the detection system to receive the detection signal. The signal processing system processes the detection signal to provide a measure of an amount of hydration sensed in the cornea of the subject.06-27-2013
20090009716FAST WAVE FRONT MEASUREMENT - Device for measuring wave fronts generated by a lens (01-08-2009
20120229770METHOD AND DEVICE FOR MONITORING RETINOPATHY - There is provided a method of monitoring retinopathy in a subject. The method involves measuring autofluorescence of a retina of the subject in response to high intensity blue light over a total time period to obtain an autofluorescence intensity profile. The autofluorescence intensity profile is processed to assess the retinopathy status of the retina.09-13-2012
20110261323DEVICE AND METHOD FOR CALIBRATING RETINOSCOPES - A device for calibrating retinoscopes for diverging and/or converging streak and spot retinoscopy and a method for calibrating retinoscopes to produce a given convergence or divergence of light emitted from the retinoscope from a fixed retinoscopic working distance to produce a predetermined pupillary reflex endpoint at neutralization of a refractive error, thereby resulting in a more accurate corrective eye prescriptions and evaluation of the visual system.10-27-2011
20110279778OPHTHALMIC APPARATUS, ADAPTIVE OPTICAL SYSTEM, AND IMAGE GENERATING APPARATUS - An ophthalmic apparatus includes an aberration correction unit which corrects aberration occurring in light irradiating an eye to be examined; and a common optical system which is commonly provided for an optical path of irradiated light on the aberration correction unit and an optical path of reflected light from the aberration correction unit. The common optical system includes at least one optical element, and areas through which the irradiated light and the reflected light respectively pass overlap each other on the optical element.11-17-2011
20100201946APPARATUS FOR MEASURING A DISTANCE BETWEEN EYE COMPONENTS - An apparatus for measuring a distance between eye components includes an interference optical system including a light source, a beam splitter splitting light into first and second light, a projection optical system projecting the first and/or second light onto the eye, a photo-receiving optical system synthesizing the first light reflected from the eye and the second light, and an optical-path-length varying optical member disposed on one of light optical paths to be movable in an optical axis direction and adjusting a relationship between light optical path lengths, a mechanism obtaining a travel position of the member, and a unit controlling a driving unit to move the member toward one direction of the axis direction and toward the reverse direction, obtaining interference signals respectively while moving the optical member toward the directions, and calculating distances between the components based on the travel position where the signals are obtained.08-12-2010
20080304012RETINAL REFLECTION GENERATION AND DETECTION SYSTEM AND ASSOCIATED METHODS - A system for generating a beam for retinal reflection detection includes a beam processor positioned to receive an illumination beam having a first spot size from a light source. The beam processor can alter the illumination beam to form a beam having a second spot size. Focusing optics focus this altered beam onto an eye, causing a spot to be formed on the retina. A detector receives reflected radiation from the retina passed through the pupil, and generates data indicative of a spatial extent of the eye pupil and an intensity map of the reflected radiation. A software package can determine from the data a pupil size and an intensity level in the intensity map. A controller in communication with the software signals the beam processor to vary the second spot size to optimize an accuracy of the determined pupil size and the intensity level.12-11-2008
20120099078Vision enhancement devices for nighttime driving and methods of using same - The devices and methods of the invention ameliorate age-related losses of night time visual acuity by constricting the pupil with a directionally focused, low-power light source close to the eye that does not impair vision by reflecting off the internal glass surfaces of the windshield and windows. Preferred devices and methods include means for adjusting the brightness of the light source and the distance and angular orientation between the light source and the eye. Particularly preferred devices and methods provide means to fix the light source in relation to the eye so that effectiveness is not diminished when the driver turns his or her head.04-26-2012
20110299038OPHTHALMOLOGICAL MEASURING SYSTEM AND METHOD FOR CALIBRATING AND/OR ADJUSTING THE SAME - An ophthalmological measuring system, for obtaining biometric data of an eye, provided with the necessary calibration and check devices for monitoring the functionality and the calibration status. The ophthalmological measuring system includes an illumination source for illuminating an eye with light and with a sensor for recording and analyzing back-scattered or reflected light components and a controller. At least one calibration and check system integrated in the ophthalmological measuring system for monitoring the functional and calibration status is provided. A device is also provided which houses the calibration and test structures and which reads off the individual physical data therefrom by an interface. The ophthalmological measuring system is in particular provided for determining biometrical data but can also be used for ophthalmological, dermatological or other devices which require calibration and/or functional checking at regular intervals.12-08-2011
20110292343Spectrally-adjustable ophthalmic illumination with discrete sources - An ophthalmic illuminator includes a one or more light combining stages arranged in series to augment a white light source with various color spectral bands. A first stage combines white light from a white light source with colored light from a first color source. Each subsequent stage in the series adds its own respective colored light. The color sources may be selectively turned on/off or driven with variable amounts of power. In this fashion, a combined light is produced by the final stage that represents a desired chromaticity and brightness as desired for a particular ophthalmic therapeutic procedure.12-01-2011
20100277694GEOMETRIC MEASUREMENT SYSTEM AND METHOD OF MEASURING A GEOMETRIC CHARACTERISTIC OF AN OBJECT - A geometric measurement system is adapted to precisely measure one or more surfaces of objects such as corneas, molds, contact lenses in molds, contact lenses, or other objects in a fixture. The geometric measurement system can employ one or more of three possible methods of measurement: Shack-Hartmann wavefront sensing with wavefront stitching; phase diversity sensing; and white light interferometry.11-04-2010
20110292344Real-time spectrally-adjustable ophthalmic illumination - An ophthalmic illuminator is provided that includes a plurality of color sources, each color source producing a light of a corresponding color; a combiner for combining the light from the color sources to produced a combined light; at least one optical fiber configured to receive the combined light and propagate the received combined light towards a distal end of the ophthalmic illuminator; and a controller configured to control an intensity for each of the color sources responsive to a sampling of a spectral content for the combined light.12-01-2011
20100110381Method and apparatus for early diagnosis of Alzheimer's using non-invasive eye tomography by Teraherts - The primary objective of the present method and apparatus is to provide a transportable diagnosis system for a reliable method to examine the conditions of a human eye lens. The method provides precise and safe technique for the early diagnosis of Alzheimer's Disease (AD) which is not involved brain surgery or biopsy. The detection of deposited amyloid plaque in the eyes of the patient has been discovered to be a possible diagnosis solution. The disclosed method uses Terahertz waves in both time and frequency domains instead of laser for scanning the eye of the AD patient to precisely image the amyloid layer non-evasively in real time and to map the deposited plaque with high resolution which can easily distinguish the abnormality of an AD patient with the comparison of the patient eye lens test to the available signature of a normal person and the signature of a person with common age-related cataracts.05-06-2010
20080284981Fourier-Domain Oct Ray-Tracing On The Eye - The present invention is directed to an ophthalmologic measurement method which can depict three-dimensional structures of the interfaces of an eye by short-coherence interferometry based on reference points. For this purpose, the pupil is illuminated at a plurality of points by a short-coherence illumination source. The measurement beam reflected at these points by the interfaces and surfaces of the eye is superimposed with a reference beam. The measurement data which are generated in this way are spectrally split by a diffraction grating, imaged on a two-dimensional detector array and conveyed to a control unit which determines a three-dimensional structure of all intraocular interfaces and surfaces of the eye. In the suggested Fourier domain OCT method, the depiction of three-dimensional structures is preferably carried out by spline surfaces or polygon surfaces. In doing so, it is possible to determine the depth positions of the measurement beams in many points of the pupil with a single recording of the array camera in that the pupils are illuminated by a diaphragm grid and the reference mirror contains a periodic phase grid.11-20-2008
20100118271Diaphanoscope Rod - A diaphanoscope rod that comprises a rod having a first end and a second end, that is made of a transparent or translucent material, and also a light feeding device. According to the invention, one end of the rod comprises a light deflecting device.05-13-2010
20100123874Power-Adjusted Aberrometer - Aspects of the invention are directed to apparatus and methods for automatically setting a power level of light emitted by a light source; illuminating a retina of a patient with the light emitted by the light source; receiving, at a sensor, light reflected from the retina of the patient; providing a signal based upon the received light; determining whether the signal meets one or more signal quality criteria; automatically setting a second power level of light emitted by the light source; and repeating the steps of illuminating the patient's eye, receiving reflected light, providing the signal, and determining whether the signal meets the signal quality criteria. In some embodiments, setting the second power level is performed in response to determining whether the signal meets the signal criteria. In still other embodiments, the method comprises selecting an operating power based upon the signal quality criteria.05-20-2010
20100225883CHARACTERISING EYE-RELATED OPTICAL SYSTEMS - An instrument and method for characterising eye-related optical systems, including the live human eye involves scanning an illuminating light beam from a light source and light detector unit from element to element of a beam deflector array of elements arranged laterally across the optical axis of eye. At each successive element the illuminating beam is deflected to form an interrogating beam that is directed into the eye at a peripheral angle that depends upon the lateral location of the deflector element. A return beam is reflected or back-scattered from the cornea and returned via the same deflector element to the light source and detector unit. This allows the interrogating beams to be scanned sufficiently rapidly into the eye to greatly reduce the variation of eye fixation and gaze that accompany other methods of measuring peripheral refraction or aberration of a natural eye. In addition to or instead of scanning the illuminating beam over each element of the array, all or multiple elements of the array can be illuminated simultaneously and the multiple interrogating rays thus generated can be gated by the use of an LCD aperture plate. Alternatively, an LCD aperture plate can be interposed between a wide illuminating beam and operated to selectively illuminate the beam deflector09-09-2010
20100085540TEAR FILM MEASUREMENT - The invention comprises an apparatus for measuring the relative thickness of the lipid layer component of the precorneal tear film on the surface of an eye after distribution of the lipid layer subsequent to blinking is disclosed. An illuminator directs light to the lipid layer of a patient's eye. The illuminator is a broad spectrum light source covering the visible region and is a lambertion light emitter such that the light source is specularly reflected from the lipid layer and undergoes constructive and destructive interference in the lipid layer. A collector collects and focuses the specularly reflected light such that the interference patterns on the tear film lipid layer are observable. The collector also produces an output signal representative of the specularly reflected light which is suitable for further analysis, such as projection on to a high resolution video monitor or analysis by or storage in a computer. In order to facilitate ease of measurement, the patient's head may be positioned on an observation platform when the illuminator directs light to the lipid layer of the patient's eye.04-08-2010
20110149247Bichromatic white ophthalmic illuminator - An ophthalmic endoilluminator having only a first monochromatic light source emitting a first light and a second monochromatic light source emitting a second light. The first and second lights defining a light color axis representable on a chromaticity graph. A collimation element configured to collimate at least one of the first and second lights. An optical mixing device configured to mix the first and second lights into a single light beam. A lens configured to focus the single light beam. An optical fiber configured to carry the single light beam. A controller coupled to at least one of the first and second monochromatic light sources. The controller configured to tune at least one of the first and second monochromatic light sources such that the single beam of light represents a specific color of light at a point along the light color axis on the chromaticity graph.06-23-2011
20120268717Ophthalmic Wavefront Sensor Operating in Parallel Sampling and Lock-In Detection Mode - One embodiment of the present invention is an ophthalmic wavefront sensor for use with an ophthalmic microscope to provide continuous measurements of the refractive state of an eye. The wavefront sensor operates in both parallel sampling and lock-in detection mode by synchronizing the pulsing of the light source with a multiple number of position sensing devices/detectors used for detecting the centroid position of the sampled sub-wavefronts. Other embodiments include a beam scanner to sample selected portions of the wavefront and a live image sensor and a tracking deflector.10-25-2012
20090109401WAVEFRONT SENSOR - The present invention relates to a wavefront sensor using a pair of screens, each having a two-dimensional array of circular apertures, to achieve Moiré effects, and its use to measure the slope of a wavefront.04-30-2009
20100103378SYSTEMS AND SOFTWARE FOR WAVEFRONT DATA PROCESSING, VISION CORRECTION, AND OTHER APPLICATIONS - A system for providing vision contains an aberrometer, a wavefront sensor, and a transfer optical system. The aberrometer is configured to measure a received wavefront. The aberrometer includes a wavefront sensor and a transfer optical system for transferring an input wavefront so as to the provide the received wavefront at or near the wavefront sensor. The system also includes a processor in communication with the aberrometer, a readable memory, and instructions located within the memory. The readable memory contains one or more system error parameters and instructions for calculating the input wavefront based on the received wavefront and the one or more system error parameters.04-29-2010
20080291397Choroid and Retinal Imaging and Treatment System - The invention provides an apparatus, a device, and methods for imaging vasculature in a subject as well as an apparatus, a device and methods for treating abnormal vasculature in a subject.11-27-2008
20080309877Instrument for measuring a refractive power - An instrument for measuring a refractive power including an astigmatic axis with retinoscopy is provided, which includes a projector, a light receiving device, a detector, and a notification unit. The projector projects light into a pupil of an examined eye. The light receiving device receives light reflected from the examined eye. The detector detects a tilt angle of the light receiving device with respect to a measurement reference. The notification unit conveys information related to a result of detection performed by the detector.12-18-2008
20080246920Multi-LED Ophthalmic Illuminator - An ophthalmic endoilluminator has a power supply coupled to a light source, a controller, a collimation device, an alignment device, a lens, and an optical fiber. The light source has three light emitting diodes. Each of the three light emitting diodes produces a different color light. The controller controls the operation of the three light emitting diodes. The collimation device collimates the light produced by at least one of the light emitting diodes. The alignment device aligns the light individually produced by the three light emitting diodes into a single light beam. The lens focuses the single light beam. The optical fiber for carries the single light beam.10-09-2008
20080278688Device For Monitoring Body Functions - A device for non-invasive monitoring of a human or animal subject's bodily functions in vivo, having a first optical system which comprises: a) illumination means (11-13-2008
20120069302Electronically Controlled Fixation Light for Ophthalmic Imaging Systems - An electronically controlled fixation light system is described for ophthalmic systems. The ophthalmic system can include an ophthalmic imaging device that generates an image of a portion of an imaged eye, a fixation light controller that includes an input module, configured to receive an input in relation to the image generated by the ophthalmic imaging device, and a control signal generator that generates an electronic fixation light control signal in response to the received input, and a fixation light source, configured to receive the fixation light control signal, and to generate a fixation light according to the received fixation light control signal. A surgeon can image a portion of an eye with the imaging device, determine a misalignment of the imaged eye relative to the imaging device based on the image, and control the fixation light with an electronic control signal to reduce the determined misalignment.03-22-2012
20090185136EYE REFRACTIVE POWER MEASUREMENT APPARATUS - An eye refractive power measurement apparatus for objectively measuring eye refractive power of a patient's eye, includes: a light-projecting optical system that includes a light source and projects measurement light onto a fundus of the patient's eye; a light-receiving optical system that includes an imager device serving as a two-dimensional light-receiving element and receives the measurement light reflected from the fundus; and an operating section that determines the eye refractive power of the eye based on a two-dimensional pattern image by the measurement light imaged by the imager device. The light source is a super-luminescent diode or a laser diode that emits light having a center wavelength in a range of approximately 850 nm to 940 nm.07-23-2009
20090015790Surgical microscope apparatus - A drive unit 01-15-2009
20090051873Eye Illumination Apparatus and Method - An ophthalmic apparatus adapted to project a waist of a beam of the light, such that a portion of the confocal region of the waist is projected onto the cornea. The source can be at least partially coherent and/or monochromatic. The source may be a laser or a laser diode. The beam can be a Gaussian beam, or a non-Gaussian beam. The apparatus can comprise a wavefront aberrometer, an axial eye length measuring apparatus or a refractometer.02-26-2009
20080291398BINOCULAR INDIRECT OPHTHALMOSCOPE FIXATION LIGHT - A binocular indirect opthalmoscope assembly and fixation light system is disclosed for easily directing the patient's line of sight in a direction that places the optic nerve and surrounding vessels in the center of the examiner's view. The fixation system includes two fixation light assemblies that may be mounted onto the binocular indirect opthalmoscope assembly and activated by a motion sensor.11-27-2008
20090219485Ocular wavefront system - The present invention generally relates to systems for measuring aberrations of the eye and more specifically to an ocular wavefront system adapted to measure aberrations of the eye for vision correction.09-03-2009
20090244485OPTICAL COHERENCE TOMOGRAPHY DEVICE, METHOD, AND SYSTEM - In accordance with one aspect of the present invention, an optical coherence tomography instrument comprises an eyepiece for receiving at least one eye of a user is provided; a light source that outputs light that is directed through the eyepiece into the user's eye; an interferometer configured to produce optical interference using light reflected from the user's eye; an optical detector disposed so as to detect said optical interference; and electronics coupled to the detector. The electronics can be configured to perform a risk assessment analysis based on optical coherence tomography measurements obtained using the interferometer. An output device can be electrically coupled to the electronics, and may be configured to output the risk assessment to the user through the output device. The optical coherence tomography instrument can be self-administered, and the eyepiece can be a monocular system or a binocular system.10-01-2009
20090257027Ocular light stimulus apparatus - Stimulus light is projected from a stimulus light source onto an ocular fundus of an eye under examination to locally stimulate the retina in order to perform a biological examination. During a biological examination, first background light is projected from an illumination light source via an objective lens, and second background light is projected from a light source from the periphery of the objective lens onto the ocular fundus. During alignment prior to a biological examination, the first background light is turned off and the second background light is projected onto the ocular fundus. During observation of the ocular fundus, the first background light projected onto the fundus is blocked, so that fundus observation or eye fixation is not disturbed by the background light. This enables accurate alignment to be carried out. Since the examinee's eye is irradiated with the second background light from the periphery of the objective lens in preparation for a biological examination, the examinee's eye can sufficiently adapt to the light during a biological examination, ensuring a reliable biological examination.10-15-2009
20100157248COLOR TINTING OF LIGHT IN OPHTHALMIC FIBER OPTIC ILLUMINATION SYSTEMS - A method is described for providing color-tinted light in an ophthalmic illumination system having a light source that produces non-white light. A color tint for illuminating one or more ophthalmic features of interest is selected. Chromaticity coordinates for the non-white light are determined. The method includes determining, based on the determined chromaticity coordinates, a spectral region to be blocked from the non-white light to obtain light from the light source exhibiting the selected color tint. The illumination system is provided with one or more filters configured to block the spectral region from the non-white light.06-24-2010
20100188638Information system and method for providing information using a holographic element - In an information system and a method for providing information in correlation with light that is incident on an eye, a pair of spectacles includes a holographic element that is supported in front of the eye of the wearer of the spectacles. An optical scanning detects light that is incident on the eye via the holographic element.07-29-2010
20100182569OPHTHALMIC ENDOILLUMINATION USING FIBER GENERATED LIGHT - In one aspect of the invention, an ophthalmic endoilluminator includes at least one pump light source and a scintillator fiber optically coupled to the pump light source. The scintillator fiber receives an output of the pump light source and produces light in a different wavelength range than the output of the pump light source. An optical coupling element couples the light to an optical fiber, which conducts the light into an eye.07-22-2010
20100177280MULTI-LED OPHTHALMIC ILLUMINATOR - An ophthalmic endoilluminator has a power supply coupled to a light source, a controller, a collimation device, an alignment device, a lens, and an optical fiber. The light source has three light emitting diodes. Each of the three light emitting diodes produces a different color light. The controller controls the operation of the three light emitting diodes. The collimation device collimates the light produced by at least one of the light emitting diodes. The alignment device aligns the light individually produced by the three light emitting diodes into a single light beam. The lens focuses the single light beam. The optical fiber for carries the single light beam.07-15-2010
20100253912METHOD FOR ILLUMINATING AN OBJECT, AND A SURGICAL MICROSCOPE HAVING AN ILLUMINATING DEVICE - A microscope and a method for illuminating an object to be imaged by a microscope are described. The method includes illuminating the object by primary light of a first spectral intensity distribution and by secondary light of a second spectral intensity distribution, the secondary light arising from the scattering of the primary light; measuring the intensity of at least one wavelength of the secondary light; comparing at least one of the measured intensity and a value derived from this measured intensity to a threshold value; and generating a signal indicating a change in the spectral intensity distribution of the secondary light by indicating whether the at least one of the measured intensity and value derived from this measured intensity either exceed or stay below the predefined threshold value.10-07-2010
20100220292VISION MEASURING SYSTEM AND ASSISTANT FOCUSING SYSTEM THEREOF - A vision measuring system includes an optical system, an image capture apparatus for receiving an image of the object through the optical system and converting the image to electronic signals, a first illuminator for emitting light to the object, and an assistant focusing system. The optical system includes a first object lens, a second object lens, and a partial reflector located between the first and second object lens. The partial reflector is unparallel to the second object lens. The assistant focusing system includes a second illuminator and a pattern slide. Patterns are attached in checkerboard fashion on the pattern slide. Light from the second illuminator is able to pass through the pattern slide, the partial reflector, and the second object lens to make the patterns of the pattern slide be projected onto the surface of the object.09-02-2010
20120194784IRIS IMAGE DEFINITION ESTIMATION SYSTEM USING THE ASTIGMATISM OF THE CORNEAL REFLECTION OF A NON-COAXIAL LIGHT SOURCE - An iris image definition estimation system using the astigmatism of the corneal reflection of a non-coaxial light source to assess both the resolution of the iris patterns and the direction of focus adjustment. The corneal reflection results in two virtual images on the meridional and the sagittal planes. These virtual images are formed behind the cornea and close to the iris. Yet, both are projected onto the same location and result in a composite glint area. In addition, the shape of the glint area of a non-coaxial light source varies with different camera focus settings. Furthermore, due to the high intensity of the glint area, the shape can be easily observed, and the size and the shape of the glint area can be used to determine the resolution of the iris image and the direction of focus adjustment, respectively.08-02-2012
20100253911Optical Measurement Apparatus and Method Therefor - An optical measurement apparatus comprises an optical system (10-07-2010
20100039619METHOD AND DEVICE FOR MEASURING THE LOCAL SCATTERING OF AN OPTICAL SYSTEM - Method for measuring, in a given measuring plane (PLM), the local scattering of an optical system (SYST), comprising: 02-18-2010
20120194785METHOD AND APPARATUS FOR MEASURING MOLECULAR COMPOSITION - The inside of an anterior chamber (08-02-2012
20080231808Relaxed confocal catadioptric scanning laser ophthalmoscope - A number of additional embodiments and optical constructions of a relaxed confocal catadioptric scanning laser ophthalmoscope (SLO) are disclosed. They improve the functionality of microperimetry (MP), and the integration of the existing instrument with the capabilities of high speed Fourier domain optical coherence tomography (SD-OCT/SS-OCT). The improvements pertain to enhanced acousto-optic modulation with regard to rise-time and combination of wavelengths, enhanced control of illuminating beam characteristics and separation of illuminating and returned light within the SLO, enhanced electronic control and options for the galvanometer and polygon scanners, additional use of liquid crystal spatial light modulation, and the modalities under which Fourier domain OCT can be integrated within the SLO.09-25-2008
20090115968DISPLAY APPARATUS, DISPLAY METHOD, DISPLAY PROGRAM, INTEGRATED CIRCUIT, GOGGLE-TYPE HEAD-MOUNTED DISPLAY, VEHICLE, MONOCLE, AND STATIONARY DISPLAY - A display apparatus includes: a light outputting unit which outputs a visible beam to be projected onto an eyeball and an infrared beam to be projected onto eyelids; a deflection unit which deflects, toward the user's eyes, the visible beam and infrared beam outputted by the light outputting unit; a light sensing unit which senses the reflected light of the visible beam reflected off the user's eyeball; an eyelid opening and closing judgment unit which judges the open or closed state of the user's eyelids based on the result of the reflected light sensing by the light sensing unit; and an infrared-irradiation range control unit which changes the irradiation range of the infrared beam so that the eyelids are selectively irradiated with the infrared beam, by controlling the light outputting unit according to the open or closed state of the eyelids judged by is the eyelid opening and closing judgment unit.05-07-2009
20090040462DEFORMABLE MIRROR DEVICE AND APPARATUS FOR OBSERVING RETINA OF EYE USING THE SAME - A deformable mirror device includes a substrate; a plurality of electrodes provided on the substrate; a spacer disposed on the substrate; a support member disposed above the spacer and having an opening passing through from a first face of the support member facing to the substrate to a second face of the support member opposite from the first face; a deformable electrode film formed below the first face of the support member so as to be opposed to the electrodes with a distance and so as to cover the opening; an insulation film provided between the deformable electrode film and the support member; and a reflection film provided on a face of the deformable electrode film opposite from the electrodes so as to overlap the opening. The electrodes are electrically insulated each other by a plurality of grooves radially extending from a region which includes a position corresponding to a center of the opening.02-12-2009
20090073384OPHTHALMIC DIAGNOSTIC INSTRUMENT - Diagnostic instruments, systems and methods for performing measurements on eyes are disclosed. In one embodiment of the instrument, a left ocular is disposed in a portion of a left visual path for the left eye, the left ocular positioned to permit the left eye to view a target, a right ocular is disposed in a portion of a right visual path for the right eye, the right ocular positioned to permit the right eye to view a target. The instrument can also include a wavefront sensor disposed on a translation stage, the wavefront sensor having an optical path to an imaging sensor, the translation stage being movable to position the optical path of the wavefront sensor in alignment with the portion of the left visual path in a first state and in alignment with the portion of the right visual path in a second state. One or more light sources are optionally provided for propagating light along a least part of the left and right visual paths to illuminate the left and right eyes.03-19-2009
20090141238MIRROR DRIVER USING DIAMETRICALLY OPPOSED MECHANICAL BEAMS WITH MIRROR INBETWEEN AND RETINAL SCANNING DISPLAY USING THE SAME - A mirror driver is disclosed which includes: a mirror having a reflective surface reflecting incident light thereon; a pair of mechanical beams diametrically opposed to each other with the mirror inbetween as viewed along a reference line parallel to the reflective surface; an actuator imparting bending motions to the pair of beams, respectively; and a pair of joints integrally coupling the pair of beams and the mirror to each other, with less rigidity to resist deformation than rigidity of the pair of beams and the mirror, for allowing conversion of the bending motions of the pair of beams into a rigid-body motion of the mirror without inducing an angular oscillation about the reference line.06-04-2009
20090109403Systems and Software for Wavefront Data Processing, Vision Correction, and Other Applications - A system for providing vision contains an aberrometer, a wavefront sensor, and a transfer optical system. The aberrometer is configured to measure a received wavefront. The aberrometer includes a wavefront sensor and a transfer optical system for transferring an input wavefront so as to the provide the received wavefront at or near the wavefront sensor. The system also includes a processor in communication with the aberrometer, a readable memory, and instructions located within the memory. The readable memory contains one or more system error parameters and instructions available to the processor. The instructions are for determining at least one aberration of the received wavefront and calculating the input wavefront based on the received wavefront and the one or more system error parameters.04-30-2009
20100315593Illuminating Apparatus For An Operating Microscope - The present invention relates to an illuminating apparatus for an operating microscope comprising two observation beam paths (12-16-2010
20110109881Method and Apparatus for Correlated Ophthalmic Measurements - A method and system for providing multiple ophthalmic and retinal blood measurements is outlined. By extracting multiple digitized wavelength images and quantitative data within a relatively short time period the method allows for compensation of a patient's eye or head movement, generation of ophthalmic clinical records, and determination of data relating to blood measurements, such as oxygen saturation and hemoglobin, in addition to ocular and other disease determinations. The method provides for multiple analysis and measurements within a single sitting of the patient, with a single simple instrument and without adaptations to the instrument during a patient's eye examination. Beneficially the approach allows for low cost, compact, and even portable implementations offering such analysis and determination outside the current ophthalmic centers providing eased access and earlier diagnosis opportunities.05-12-2011
20110128499APPARATUS FOR MEASURING DISTANCE BETWEEN EYE TISSUES - An eye distance measurement apparatus according to one aspect of the invention includes an interfering optical system that projects at least one piece of split light toward an examinee's eye, combines the split light, guides the combined light to a light receiving device and moves an optical member in order to adjust an optical path difference between the two pieces of split light, a mode switching unit that issues a mode switching signal for switching between a first measurement mode for moving the optical member at a first scanning rate and a second measurement mode for moving the optical member at a second scanning rate slower than the first scanning rate, and a calculation and control unit that measures an eye distance, based on an output signal of the light receiving device, obtained in the measurement mode corresponding to the mode switching signal.06-02-2011
20110128501SYSTEM FOR CHARACTERIZING A CORNEA AND OBTAINING AN OPHTHALMIC LENS - A system for determining the shape of a cornea of an eye illuminates at least one of the interior surface, the posterior surface, and the interior region of the eye with infrared light of a wavelength that can generate fluorescent light from the portion of the cornea illuminated. The generated fluorescent light is then detected. A step of illuminating can comprise focusing the infrared light in a plurality of different planes substantially perpendicular to the optical axis of the eye. From the detected light it is possible to create a map of at least a portion of the interior surface, at least a portion of the posterior surface, and/or portion of the interior region of the cornea. Clarity of vision can be determined by generating autofluorescence from proteins in the pigment epithelial cells of the retina.06-02-2011
20110128500SYSTEM FOR CHARACTERIZING A CORNEA AND OBTAINING AN OPHTHALMIC LENS - A system for determining the shape of a cornea of an eye illuminates at least one of the interior surface, the posterior surface, and the interior region of the eye with infrared light of a wavelength that can generate fluorescent light from the portion of the cornea illuminated. The generated fluorescent light is then detected. A step of illuminating can comprise focusing the infrared light in a plurality of different planes substantially perpendicular to the optical axis of the eye. From the detected light it is possible to create a map of at least a portion of the interior surface, at least a portion of the posterior surface, and/or portion of the interior region of the cornea. Clarity of vision can be determined by generating autofluorescence from proteins in the pigment epithelial cells of the retina.06-02-2011
20110069279OPHTHALMOLOGIC BIOMETRIC OR IMAGE GENERATING SYSTEM AND METHOD FOR DETECTION AND EVALUATION OF MEASURED DATA - An ophthalmological biometric or image-producing system and method for detection and analysis of measurement data including a measurement arrangement with an illumination unit for illuminating the eye with at least one measurement beam, a signal detection unit for the detection of the light portions scattered or reflected back from the eye, a central control unit with an output unit, and a pattern generating unit which includes an optical scan unit, a control unit as well as a position sensor for measuring the realized deflections of the optical scan unit, whereby control unit, optical scan unit and position sensor can form a control circuit. Thereby, the position sensor, except for the connection within the possible control circuit, includes a connection to a unit of the measurement arrangement for optimizing measurement value logging or to the central control unit for correcting the biometric measurements or tomograms.03-24-2011
20110069278MEDICAL HAND ATTACHMENT WITH LIGHTING - A handheld medical instrument for illumination, in particular for application in ophthalmology, comprising a housing serving as a handle, a probe extending from the housing, and a light outlet at the end, is characterized by a light source integrated into the handheld instrument.03-24-2011
20110043760Fixed optical system having an adjustable target - A fiber optic illuminator is provided comprising an optics bed, a light source, a collimating lens, and a condensing lens. The light source is mounted in a fixed position with respect to the optics bed. The collimating lens is mounted in a fixed position with respect to the optics bed and collimates at least a portion of the light from the light source. A condensing lens receives the substantially collimated light output and focuses the collimated light output to optically couple to an optical fiber. The condensing lens may be mounted on an adjustable mount. The tolerances of the fixed optical elements i.e. light source and collimating lens allow the fixed optical elements to be positioned with a minimal amount of variation where the variation is determined by manufacturing tolerances associated with these individual elements and their mounts and couple them to the optics bed.02-24-2011
20100277695APPLICATOR FOR AN OPHTHALMOLOGIC TREATMENT DEVICE - An applicator for an ophthalmologic treatment or diagnostic device, wherein a laser beam and an illumination beam are directed at the eye and light reflected from the eye is fed to an examining beam path. A reflective surface is provided for the reflection of the illumination beam and comprises an optical aperture for the laser beam.11-04-2010
20100271595Device for and method of ray tracing wave front conjugated aberrometry - Two stages of ray tracing aberrometry include preliminary stage of measurement with probing beams successively entering the eye in parallel to the optical axis and the main stage of measurement with probing beams successively entering the same points of the eye but tilted in the way to compensate for the refraction variations over the entrance aperture measured in the preliminary stage. The main stage of measurement may be implemented in the combination of units, one compensating for defocus another—compensating for higher order aberrations. In one embodiment, the probing channel contains two two-coordinate acousto-optic deflectors with a collimating lens between them. The procedure of main stage of measurement may be iteratively repeated until the wave front conjugation is achieved with a prescribed accuracy.10-28-2010
20120200827OPHTHALMOLOGIC APPARATUS - An ophthalmologic apparatus comprises a light source 08-09-2012
20120176584Hand-Held Medical Device For Illumination - The invention relates to a hand-held medical device for illumination, in particular for use in ophthalmology, comprising a housing used as a handle piece, a tube (07-12-2012
20110157554APPARATUS FOR MEASURING OCULAR AXIAL LENGTH - An object of one aspect of the present invention is to obtain a measurement value in accordance with the condition of a crystalline lens of an examinee's eye. An apparatus for measuring ocular axial length includes: a measuring unit which irradiates measurement waves toward a fundus of the examinee's eye, and calculates the ocular axial length of the examinee's eye based on detection signals obtained from reflected waves including waves reflected from the fundus; and a determining unit which acquires reflection information related to an anterior segment of the examinee's eye, extracts reflection signals corresponding to a reflection object between a cornea and a posterior capsule of a crystalline lens based on the acquired reflection information, and determines whether the examinee's eye is a phakic eye or an IOL eye based on the extracted reflection signals.06-30-2011
20090051874DEFORMABLE MIRROR DEVICE AND APPARATUS FOR OBSERVING RETINA OF EYE USING THE SAME - A deformable mirror device includes a substrate; a plurality of electrodes provided on the substrate; a spacer disposed on the substrate; a support member disposed above the spacer and having an opening passing through from a first face of the support member facing to the substrate to a second face of the support member opposite from the first face; a deformable electrode film formed below the first face of the support member so as to be opposed to the electrodes with a distance and so as to cover the opening; an insulation film provided between the deformable electrode film and the support member; a reflection film provided on a face of the deformable electrode film opposite from the electrodes so as to overlap the opening; and a plurality of through holes passing through the reflection film and the deformable electrode film and disposed so as to overlap the opening.02-26-2009
20100321637Illumination device as well as observation device - Among other items, an illumination device (12-23-2010
20080252852Method and arrangement for the measurement of the anterior segment of the eye - The invention is directed to an arrangement and a method for measuring the anterior segment of the eye using interferometric means. The eye is illuminated by a convergent beam bundle and aligned with the optical axis of the measuring device by generating directional stimuli and accommodation stimuli by means of a display which is mirrored into the beam path.10-16-2008
20080204660Ophthalmoscopic attachment module and surgical microscope having an ophtalmoscopic attachment module - An opthalmoscopic attachment module (08-28-2008
20080204661DEFORMABLE MIRROR DEVICE AND APPARATUS FOR OBSERVING RETINA OF EYE - It is made possible to improve the variations in the “generated force (load)—deflection characteristics”. A deformable mirror device includes: a substrate; a plurality of electrodes provided on the substrate; a spacer disposed on the substrate; a support member disposed above the spacer and having an opening passing through from a first face of the support member facing to the substrate to a second face of the support member facing opposite from the first face; a first insulation film provided around the opening on the first face of the support member; and a deformable electrode film disposed so as to be opposed to the electrodes at a spacing, formed so as to cover the opening, and supported by the support member with sandwiching the first insulation film. The electrode film includes a reflection portion on a face opposite to the electrodes.08-28-2008
20110164220Adaptive Sequential Wavefront Sensor with Variable Aperture - One embodiment is a machine comprising a sequential wavefront scanner, a variable aperture, a position sensing device and a controller. The controller is coupled to the variable aperture and sequential wavefront scanning device and configured to coordinate the operation of the variable aperture and the sequential wavefront scanning device.07-07-2011
20110149246Photonic lattice LEDs for ophthalmic illumination - Photonic lattice sources drive an optical fiber in an ophthalmic illuminator to illuminate the interior of an eye. To produce white light, an RGB combination of photonic lattice LEDs may be used. Alternatively, a bichromatic combination of photonic lattice LEDs produce white light.06-23-2011
20100026957Ocular Imaging System - An imaging system for examining the interior structure of the eye at high-resolution under ambient light without the need for chemical dilation of the pupil.02-04-2010
20110116046LED VARIABLE LIGHT SOURCE - An LED variable light source of this invention includes a super luminescent LED for generating a continuous light signal having a logarithmically controllable light intensity maintainable over a broad spectral range. The LED variable light source also includes a light lens for receiving and focusing the generated continuous light signal and a controller for controlling the light signal's intensity and frequency range via a driver interface, constructed and arranged to allow a user to input LED variable light source control inputs.05-19-2011
20120307209NON-INVASIVE SPECTROPHOTOMETER AND RELATED METHOD - The present invention provides for a device for use in non-invasive inspection measurement and/or monitoring of a human or animal subject's eye, the device having a first optical system which comprises illumination means for selectively directing illumination light onto a selected structure of the eye for direct and diffuse reflectance there from and for providing the illumination light in one or more pulses, receiving means for receiving light returning from the eye as a result of illumination by the illumination light and arranged to record the returning light intermittently at a selected timing relative to the pulse(s) of illumination light so as to discriminate between directly or diffusely reflected light returning from the selected structure and other reflected light for analysis of the said directly or diffusely reflected light.12-06-2012
20090207377Method and System for Improving Accuracy in Autorefraction Measurements by including Measurement Distance Between the Photoreceptors and the Scattering Location in an Eye - A method and associated system improve accuracy in objective refraction measurements by including the measured distance between the photoreceptors of a subjects eye and the scattering location of light during the objective refraction measurements. Chromatic aberrations in the objective measurements are also compensated. The distance between the photoreceptors and the scattering location may be determined by adjusting a distance between a rotating speckled light pattern and an eye until the speckled light pattern appears to be stationary, or by employing a Scheiner disk.08-20-2009
20090009717INVERSE OPTICAL DESIGN - An imaging apparatus for simultaneously determining optical parameters of the eye comprising: a light source for illuminating at least a portion of the eye pupil; an illumination optical system for directing light rays emitted from the light source into the eye; a light receiving optical system for guiding the light rays reflected from the eye to a detector unit, wherein the detector unit detects an image intensity distribution from the light rays reflected from the eye; and an arithmetic unit for determining optical characteristics of the eye by parameter estimation is provided.01-08-2009
20120013849Apparatus and method of monitoring and measurement using spectral low coherence interferometry - A spectral interferometry apparatus and method are disclosed, that can be used to monitor or measure an unknown length by following a characteristic of an indicating signal. The measurement is performed by adjusting an optical path difference (OPD) in an interferometer until sound or light or both are obtained with the desired strength and pitch. Embodiments are presented where the unknown length is the eye length. Sound of different pitches are produced by scanning the channeled spectrum output of an interferometer with the object returning at least one of the interferometer optical signals. The scanning is performed by reading the signal of an analogue photodetector array driven by a nonlinear clock or by tuning a low cost swept source using a distorted driving signal.01-19-2012
20090096989Binocular Indirect Ophthalmoscope - A binocular indirect opthalmoscope has a light source for producing an illumination beam and an illumination mirror (04-16-2009
20120154750ARRANGEMENT WITH A SPECTACLE LENS HAVING A CHANGEABLE EFFECT AND METHOD FOR SETTING THE EFFECT OF A SPECTACLE LENS - The invention relates to an arrangement with a spectacle lens having a changeable optical effect and with an effect-setting apparatus for setting the optical effect of the spectacle lens on the basis of intended-setting data. A memory apparatus stores first intended-setting data for setting a first predetermined optical intended effect, which was established from a first refraction measurement on an eye of a spectacles wearer for whom the spectacle lens is destined, and for storing second intended-setting data for setting a second predetermined optical intended effect, which was established from a second refraction measurement on the eye, and also a supply apparatus for supplying the first intended-setting data or the second intended-setting data to the effect-setting apparatus.06-21-2012
20110090461APPARATUS FOR MEASUREMENT OF THE AXIAL LENGTH OF AN EYE - An apparatus for measuring the axial length of a human eye, the apparatus comprising a low coherence light source; a beam splitter; a fast displacement module for rapidly varying the path length within a reference arm of an interferometer; a laser directing a laser beam that is co-propagating with light from the low coherence light source into the displacement module.04-21-2011
20120162606EYE MEASUREMENT APPARATUS - An eye measurement apparatus includes: a subjective measurement optical system configured to subjectively measure an examinee's eye, the subjective measurement optical system including: a chart to be presented to the examinee's eye; and a glare light source for irradiating the examinee's eye with a glare light; and a control part configured to determine presence or absence of opacity in a light transmitting part of the examinee's eye and, when the presence of opacity is determined, to allow display of necessity for a glare test which is a subjective measurement to be performed in a state that the examinee's eye is irradiated with the glare light.06-28-2012
20120162605ILLUMINATION SYSTEM AND METHOD - The invention relates to an illumination system (06-28-2012
20100290007Electronic ophthalmoscope for selective retinal photodisruption of the photoreceptor mosaic - An electronic ophthalmoscope combining scanning laser (SLO) and optical coherence (OCT) technologies is further equipped with a pulsed laser source in the femtosecond (fs) range. The goal is primarily to selectively disrupt the photoreceptor mosaic of the retina or Bruch's membrane in a pattern that minimizes loss of visual functioning, and to reduce thereby the metabolic load of the outer retina. Using a beam splitter, one embodiment combines the SLO scanning beams with the therapeutic laser beam and aiming beam. The therapeutic channel uses an independent x/y positioner and micro-deflector. Because the duty cycle is appropriate, a second embodiment can use the SLO scanners to also scan a modulated therapeutic laser beam. A biometric OCT probe, helpful in focusing, can be integrated in both configurations. A method is also disclosed to represent the tilting of the retina at a specified location.11-18-2010
20120127432MEASURING OCULAR POINT SPREAD FUNCTION USING ADAPTIVE OPTICS - Measurement of the optical point spread function through a double-pass technique is enhanced by using adaptive optics to form a tiny spot of light on the retina.05-24-2012
20120127431SCANNING OPTICAL SYSTEM FOR LARGE AXIAL SCAN DEPTH ANTERIOR SEGMENT OPTICAL COHERENCE TOMOGRAPHY (OCT) - An optical coherence tomography scanning system includes a lens divided into two halves: one optimized to achieve normal incidence angles on the posterior surface of the eye's lens, the other optimized for the anterior surface of the eye's lens.05-24-2012
20120314187METHOD OF LOCATING VALID LIGHT SPOTS FOR OPTICAL MEASUREMENT AND OPTICAL MEASUREMENT INSTRUMENT EMPLOYING METHOD OF LOCATING VALID LIGHT SPOTS - An algorithm locates valid light spots produced on an image detector by a wavefront of interest. The algorithm includes sequentially examining pixels of the image detector to determine for each of the pixels whether the light intensity detected by the pixel is greater than a threshold, When the pixel's detected light intensity is determined to be greater than the threshold, the algorithm includes: determining whether the pixel belongs to a valid light spot; and when the pixel is determined to belong to a valid light spot; saving data indicating a location for the valid light spot; and masking out a group of pixels of the image detector at the determined location such that the masked pixels are considered to have a light intensity less than the threshold for a remainder of the sequential examination.12-13-2012
20120262672DOUBLE PASS DEVICE FOR RETINAL IMAGE QUALITY MEASUREMENT - An optical system for measuring retinal-image quality has a light system constructed and arranged to provide light to be directed onto a retina of a subject's eye, a detection system arranged to receive at least a portion of the light after being reflected or scattered back from the retina of the subject's eye, and an afocal optical system arranged in an optical path of the light between the light system and the detection system. The afocal optical system is constructed and arranged to correct a refractive error of the subject's eye.10-18-2012
20120081668IMAGING OF MACULAR PIGMENT DISTRIBUTIONS - Macular pigments are measured by spectrally selective lipofuscin detection. Light from a light source that emits light at a selected range of wavelengths that overlap the absorption band of macular carotenoids is directed onto macular tissue of an eye for which macular pigment levels are to be measured. Emitted light is then collected from the macular tissue. The collected light is filtered so that the collected light includes lipofuscin emission from the macular tissue at an excitation wavelength that lies outside the macular pigment absorption range and outside the excitation range of interfering fluorophores. The collected light is quantified at each of a plurality of locations in the macular tissue and the macular pigment levels in the macular tissue are determined from the differing lipofuscin emission intensities in the macula and peripheral retina.04-05-2012
20120081667Arrangement and method for carrying out a surgical treatment of an eye - An arrangement for carrying out a surgical treatment of an eye includes a diagnostic instrument which is adapted to register eye-structure data. A data processing unit is adapted to generate, on the basis of the eye-structure data registered by the diagnostic instrument, a structural image that contains at least one mapping of a characteristic eye structure and also at least one positional marking arranged relative to the mapping of the characteristic eye structure. An image-data fade-in device is adapted to fade the structural image generated by the data processing unit into an image generated by a surgical microscope during the implementation of a surgical treatment of the eye.04-05-2012
20120229769FUNDUS IMAGING APPARATUS AND FUNDUS IMAGING METHOD - Provided is a fundus imaging apparatus including a wavefront adjuster and a detector. The wavefront adjuster is configured to adjust a wavefront of a femtosecond pulsed laser beam incident on an ocular fundus to be examined. The detector is configured to detect fluorescence generated in a multi-photon excitation process by the femtosecond pulsed laser beam incident on the ocular fundus to be examined. The wavefront adjuster is further configured to adjust the wavefront so that an intensity of the fluorescence to be detected by the detector becomes a maximum value.09-13-2012
20110122366Single-fiber multi-spot laser probe for ophthalmic endoillumination - An ophthalmic endoilluminator is provided. The ophthalmic endoilluminator includes a light source, a first optical assembly, an optical coupling element, and an optical fiber having an optical grating located distally on the optical fiber, the optical fiber optically coupled to the optical coupling element. The first optical assembly receives and substantially collimates the white light. The optical coupling element receives the substantially collimated white light from the first optical assembly and directs the light to an optical fiber. The optical grating couples to the distal end of the optical fiber, the optical grating having a surface relief grating, and an overlayer optically coupled to the surface relief grating. The optical grating is operable to substantially diffract incident light into N diffraction orders, the N diffraction orders having a substantially uniform intensity.05-26-2011
20110037949OPHTHALMIC ENDOILLUMINATION WITH THERMALLY ISOLATED PHOSPHOR - An illuminator configured to deliver white light into an optical fiber includes a pump light source and a white phosphor. The pump light source configured to emit short-wavelength light. The white phosphor is disposed to receive the short-wavelength light from the pump light source and to output white light in response to the pumping light. The white phosphor is thermally isolated from the pump light source.02-17-2011
20110037948White light emitting diode (LED) illuminator for ophthalmic endoillumination - An ophthalmic endoilluminator is provided. The ophthalmic endoilluminator includes one or more white light emitting diodes (LEDs), an additional light source, a first optical assembly, an optical coupling element, and an optical fiber optically coupled to the optical coupling element. The white LED is capped with a phosphor layer. The additional light source illuminates at least a portion of an exterior surface of the phosphor layer within an absorption band of phosphor material of the phosphor layer in order to excite the phosphor layer and produce additional white light. The first optical assembly receives and substantially collimates the white light. The optical coupling element receives the substantially collimated white light from the first optical assembly and directs the light to an optical fiber. The optical fiber is then used to conduct the white light into an eye.02-17-2011
20110037947Illumination device as well as observation device - Disclosed are an illumination device for an observation device comprising one, two or more observation beam paths with one respective beam of observation rays, especially for an ophthalmologic surgical microscope, and a corresponding observation device. Said illumination device is provided with at least one light source for generating at least one beam of observation rays in order to illuminate an object that is to be observed. According to one embodiment of the invention, at least two partial bundles of illumination rays are provided, each of which extends coaxial to a corresponding beam of observation rays, while the partial beams of illumination rays are embodied so as to form two or several illumination spots on the fundus of an object that is to be observed, e.g. an eye, said illumination spots having variable sizes, thus allowing the illumination beam to cooperate in a precisely defined manner with the observation beam paths, which makes it possible to meet especially the practical requirements regarding homogeneity of the red reflex.02-17-2011
20120268716Fast Wave Front Measurement - Device for measuring wave fronts generated by a lens (10-25-2012
20120327367Self-Adhering Visual Stimulator - A device for the stimulation of the visual system includes a body having a pair of spaced lobes configured to conform to the periocular region. The body has a first side and an opposed second side. The body second side has an adhesive layer for securing the body to the periocular region. A light emitting source disposed within each of the pair of lobes to selectively illuminate the periocular region.12-27-2012
20120327368METHOD AND APPARATUS FOR IMAGING IN AN EYE - A scanning laser ophthalmoscope (SLO) that includes at least one adjustable scanning system adapted for a variable field of view; at least one light source having at least a first spectral emission band suitable to effect at least one of a fluorescence signal and a reflectance signal from a retinal cell; and at least one detector configured to detect at least two different spectral bands from the at least one of the fluorescence and reflectance signals.12-27-2012
20120092619HANDHELD REFLECTOMETER FOR MEASURING MACULAR PIGMENT - A macular pigment reflectometer is handheld, light, and portable. It can be provided as a part of a self-contained system. The self-contained system includes a docking station in which the macular pigment reflectometer is placed between uses. The docking station is used to recharge the battery of the handheld macular pigment reflectometer. The docking station also has one or more types of communication ports, such as one for a wired or wireless internet connection, through which the handheld macular pigment reflectometer can communicate with a computer or an electronic medical records system. The instrument operates in a pulsed operating mode wherein relative instrument-to-eye motion is reduced and, preferably, nearly eliminated. The handheld macular pigment reflectometer contains an on-board spectrometer which is designed to capture spectra in very short intervals of time. A trigger on the instrument allows for a rapid, intuitive, and sequential alignment followed by rapid data gathering.04-19-2012
20120287403ILLUMINATION METHOD AND APPARATUS FOR USING A MULTIMODE FIBER OPTIC TO PROVIDE VARIABLE ILLUMINATION SCHEMES - An ophthalmic illumination system comprising a multimode fiber optic having an end a first laser source, and the system configured to project light into the end at a plurality of different angles. An ophthalmic illumination system comprising a multimode fiber optic having an end, a first light source adapted to produce light of a first color, a second light source adapted to produce light of a second color, and a beam combiner configured and arranged to receive and combine the light from the first light source and the light from the second light source to form a combination of light. The beam combiner is configured and arranged to project the combination of light into the end. The system is adapted to vary at least one of the amount of the light of the first color and the amount of the light of the second color projected into the end, such that the combination of light has a selectable color.11-15-2012
20090109402Light reflex testing device - A calorimetric pupil light reflex testing device for diagnostic assessment of the ocular and central nervous system diseases based on melanopsin and non-melanopsin spectral light properties. The device employs blue and red light emitting diodes emitting light at wavelengths of approximately 472 nanometers and 630 respectively to elicit pupillary constriction. The light emitting diodes are each provided within a handheld light wand, allowing the light emitting diodes to be hand held. The light emitting diodes provide intense light and the predetermined wavelengths, thereby eliminating the necessity of a light meter or colored filter.04-30-2009
20080252851Binocular Indirect Ophthalmoscope Generating Erect Ocular Fundus Image - This invention relates to equipment indirectly visualizing the fundus of the eye through a condensing lens. It is characterized with light weight and relatively of simple structure, contrary to the common indirect opthalmoscopes, whereby the image of the back of the eye can be seen upright. Thus, many complications presented during the training on the equipment application can be avoided averted as the image obtained needs no interpretation and any pathological change can be determined by the doctor in its exact location.10-16-2008
20080246921DEVICE AND METHOD FOR OPTOMETRY - To provide an eye examination apparatus and an eye examination method that make it possible to measure eyesight or contrast sensitivity in the binocular viewing state and further make it possible to measure optical characteristics in such an appropriate binocular viewing state. An eye examination apparatus 10-09-2008
20110261324Illumination System for an Ophthalmic Surgical Microscope, Ophthalmic Surgical Microscope, and Method for Operating an Illumination System for an Ophthalmic Surgical Microscope - Disclosed is an illumination system for an ophthalmic surgical microscope (10-27-2011
20130176535CONFOCAL LINE-SCANNING OPHTHALMOSCOPE - A line-scanning ophthalmoscope includes a light source to provide a light beam to an object of interest, a beam separating device to receive the light beam, provide the light beam to a scanning device and substantially separate the light beam and the returning light beam from the object of interest, a scanning device to direct the light beam to the object of interest for scanning the object of interest; to receive the light beam returning from the object of interest; and to direct at least part of the reflected light beam towards a detector; and a further scanning device to convert the light beam to a line-shaped light beam.07-11-2013
20130100409Method and System for Combining OCT and Ray Tracing to Create an Optical Model for Achieving a Predictive Outcome - A system and method are provided for combining the imaging capabilities of an Optical Coherence Tomography (OCT) device with the calculated results of ray tracing techniques. The combination is then used to derive a predictive refractive outcome for an optical model. The resultant optical model includes diopter power and size information for use in preoperative planning (e.g. a capsulotomy) and/or for the manufacture of an Intraocular Lens (IOL).04-25-2013
20130169933Tear Film and Contact Lens Evaluation by Optical Reflectometry Technique - A method and system for evaluation tear film thickness and thinning dynamics in an eye with or without wearing a contact lens using a specially configured optical reflectometer. The method and system may address the beam aiming flexibility on the tear film surface by incorporation of a galvanometer scanner with the fiber coupled optical reflectometer. The tear film thickness, tear film thinning dynamics, and tear film breakup thickness can be determined. The system can also be combined with spectral domain OCT or swept source OCT for ophthalmology applications. The advantage is fast and high precision tear film evaluation that can also be extended to water film on contact lens evaluation for the determination of contact lens hydrophilic properties.07-04-2013
20110211162OPTHALMIC APPARATUSES, SYSTEMS AND METHODS - Ophthalmic apparatuses, systems and methods are disclosed. One embodiment is an ophthalmic scanning apparatus including a laser operable to emit a laser beam, a scanning mirror operable to scan the laser beam over at least a +/−15 degree scan, and a lens system operable to receive the laser beam from the scanning mirror and direct the laser beam to a spot on an image plane. The spot has a root mean square radius of less than about 3.8 microns over the +/−15 degree scan. Further embodiments include methods of modeling and determining corrective prescriptions for patient's eyes. Additional embodiments are described herein.09-01-2011
20080198332FIXATION LIGHT INDICATOR FOR SLIT LAMP - A slit lamp includes a rest for receiving a patient's face such as the patient's forehead. The slit lamp further includes an optical portion for observing the patient's eye. A fixation light is positioned near the optical portion to direct the patient's view toward the optical portion. A sensor secures to the rest and detects proximity of the user's face to the rest. The output of the sensor controls the fixation light such that the fixation light is turned on upon detecting the positioning of the user's face at the rest. In one embodiment, a shield secures to the optical portion and first and second fixation lights secure to the shield at either side of the optical portion. First and second flanges secure to the shield proximate the fixation lights and such that each fixation light is only viewable when directly in front of the patient's eye.08-21-2008
20130148082FIXATION LAMP FOR OPHTHALMOLOGICAL INSTRUMENTS - [Problem] To increase, compared to conventional devices, the range of motion of the light emitter (fixation lamp) in an external fixation lamp for an ophthalmological instrument and allow movement of the light emitter to arbitrary positions.06-13-2013
20120274904OPHTHALMIC APPARATUS, METHOD OF CONTROLLING OPHTHALMIC APPARATUS AND STORAGE MEDIUM - An ophthalmic apparatus comprises: a first optical system which irradiates the same region on a retina with a plurality of illumination light beams through separate positions on a pupil of an eye to be examined; and an image generation unit configured to generate a two-dimensional image of the retina based on return light from the eye.11-01-2012
20100309433Illumination device and observation device - An illumination device (12-09-2010
20130155375DEVICE FOR PROCESSING EYE TISSUE BY MEANS OF A PULSED LASER BEAM - An ophthalmological device (06-20-2013
20120019780OPHTHALMIC APPARATUS, CONTROL METHOD FOR THE SAME, AND STORAGE MEDIUM - An ophthalmic apparatus comprises: aberration correction unit arranged to correct aberration of at least one of irradiating light directed to an eye to be examined and return light from the eye; light-receiving unit arranged to receive, as return light from the eye, the light whose aberration is corrected by the aberration correction unit and then which irradiates the eye; measurement unit arranged to measure the aberration of the return light; and control unit arranged to control the aberration correction unit based on a measurement result obtained by the measurement unit and a light reception result obtained by the light-receiving unit.01-26-2012
20120069303MEASURING SYSTEM FOR OPHTHALMIC SURGERY - The invention relates to an optical measuring system comprising a wave front sensor for characterizing a shape of a wave front of measuring light and an imaging lens, wherein the imaging lens comprises a first optical assembly and a second optical assembly for imaging an object region in an entrance region of the wave front sensor. A distance between the object region and the first optical assembly is larger than a focal length of the first optical assembly. Furthermore, the optical measuring system can comprise an optical microscopy system and optionally an OCT system for carrying out different optical examination methods at the same time.03-22-2012

Patent applications in class Including illuminator