| CARL ZEISS MEDITEC AG Patent applications |
| Patent application number | Title | Published |
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| 20120120486 | MICROSCOPY SYSTEM - A microscope system for imaging of an object that can be placed in an object plane of a microscope system includes an imaging system for providing at least one pair of optical imaging paths that include a stereoscopic angle in the object plane. The imaging system includes a first subsystem comprising a first plurality of optical lenses that are commonly traversed by both optical imaging paths of the at least one pair of optical imaging paths. The imaging system also includes a second subsystem comprising a second plurality of optical lenses that are traversed by only one optical imaging path. At least two optical lenses of the first plurality of optical lenses and at least two optical lenses of the second plurality of optical lenses are displaceable relative to one another along a common optical imaging path to respectively vary a magnification of the representation of the object. | 05-17-2012 |
| 20120089132 | METHOD AND DEVICE FOR NON-INVASIVE TEMPERATURE DETERMINATION IN BIOLOGICAL TISSUE TREATED WITH TREATMENT RADIATION - A method for non-invasive temperature determination in biological tissue treated with treatment radiation wherein a reaction which depends on the treatment temperature is generated and detected. Measurement radiation pulses and pulses of the treatment radiation are applied to the tissue to be treated successively, in particular in an alternating way, from the same radiation source. A device includes a radiation source, an irradiation lens system, detectors for determining a reaction and a system control suitable for controlling treatment radiation and measurement radiation pulses. The system control generates successive, in particular alternating, pulses of treatment radiation and measurement radiation pulses from one radiation source only, in particular a laser which can be modulated. | 04-12-2012 |
| 20120078239 | METHOD FOR INCREASING OCULAR DEPTH OF FIELD - A method for performing a corneal ablation procedure on an eye of a patient including determining a refractive correction for the eye and determining a first parameter corresponding to the refractive correction or a condition of the patient. An ablation profile is selected that includes a refractive correction component and a pre-compensating component that is selected based on the first parameter. The ablation profile is configured to promote a controlled induction of a higher order aberration, where the pre-compensating component limits the induction of the higher order aberration to be within a predefined range. The cornea is ablated using the selected ablation profile. | 03-29-2012 |
| 20120041429 | METHOD AND DEVICE FOR PERFORMING ONLINE ABERROMETRY IN REFRACTIVE EYE CORRECTION - A device for correcting visual defects of an eye comprises a coherent light source, a beam modification device for shaping and deflecting a beam of the coherent light source, and a wavefront analyzer device for analyzing a wavefront of an optical path in the eye. | 02-16-2012 |
| 20120035598 | DEVICE AND METHOD FOR PRODUCING CONTROL DATA FOR THE SURGICAL CORRECTION OF DEFECTIVE EYE VISION - A device for producing control data for a laser device for the surgical correction of defective vision. The device produces the control data such that the laser emits the laser radiation such that a volume in the cornea is isolated. The device calculates a radius of curvature R | 02-09-2012 |
| 20120035597 | METHOD FOR TREATING INCISION SURFACES IN A TRANSPARENT MATERIAL - A method for the surface treatment (that is, smoothing and/or sealing) of incision surfaces in a transparent material, in particular in the cornea. For this purpose, the incision surface is subjected to the radiation of a laser (for example, UV laser, preferably excimer laser, or IR laser) and/or another suitable radiation source. | 02-09-2012 |
| 20120016353 | APPARATUS AND METHOD FOR REMOVING A LENTICLE FROM THE CORNEA - An apparatus and method for removing a lenticle from the cornea. For this purpose, a device for liquefying the lenticle and a device for suctioning off the resulting fluid are provided. The lenticle is liquefied and the resulting fluid is then suctioned off. | 01-19-2012 |
| 20120016352 | OPHTHALMOLOGIC LASER SYSTEM - An ophthalmological laser system for photodisruptive irradiation of ocular tissue, including a crystalline lens or a cornea. The system includes an ultra-short pulse laser, the radiation of which is focusable as illumination light via an illumination beam path including a scanner unit and focusing optics. A control unit is programmed to execute determining irradiation control data for photodisruptions at irradiation points in an interior of the ocular tissue distributed three-dimensionally and non-equidistantly to create at least one predetermined target incision. The laser system then irradiates the ocular tissue according to the determined irradiation control data. | 01-19-2012 |
| 20120016351 | DEVICE AND METHOD FOR PRODUCING CONTROL DATA FOR THE SURGICAL CORRECTION OF DEFECTIVE EYE VISION - A device for producing control data for a laser device for the surgical correction of defective vision. The device produces the control data such that the laser emits the laser radiation such that a volume in the cornea is isolated. The device calculates a radius of curvature R | 01-19-2012 |
| 20120008651 | METHOD OF MATERIAL PROCESSING WITH LASER PULSES HAVING A LARGE SPECTRAL BANDWIDTH AND APPARATUS FOR CARRYING OUT SAID METHOD - A method and device for processing materials with laser pulses having a large spectral bandwidth and a device for carrying out said method. The aim of the invention is to create an easy, flexible method enabling universally applicable processing which can, however, be adapted to specific processing and methodological requirements. According to the invention, one or several spectral parameters of the laser pulses, i.e. the spectral amplitude and/or spectral phase and/or spectral polarization thereof, is/are specifically modified, preferably according to a measuring process variable, in order to process material or during the occurrence of said processing. The invention is used in order to process material with laser pulses having a large spectral bandwidth, particularly femto-second pulses and pico-second pulses. | 01-12-2012 |
| 20120008195 | MICROSCOPE SYSTEM - Microscope system for acquiring a plurality of images, comprising: a zoom system which is configured to continuously vary a magnification of the microscope system over a magnification range of the microscope system, wherein the zoom system comprises two movable zoom components, which are arranged movably along a common optical axis of the microscope system; an aperture stop, which is configured such that a plurality of different observation beam paths of the microscope system are selectable, which traverse the zoom system; wherein the aperture stop, as seen along the optical axis, is arranged between the two movable zoom components; and wherein for all values of the magnification within the magnification range, the aperture stop is located within an aperture stop range which is measured along the optical axis and which surrounds a pupil position of the microscope system. | 01-12-2012 |
| 20110299038 | OPHTHALMOLOGICAL 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 |
| 20110292395 | INTERFEROMETRIC SAMPLE MEASUREMENT - A device for the interferometric measurement of a sample, in particular the eye, including an interferometer arrangement with a first measurement beam path, through which a measurement beam falls onto the sample, and a first reference beam path, through which a reference beam runs, which is applied to the measuring beam for interference. The interferometer arrangement includes a second measuring beam path and/or second reference beam path. The optical path lengths of the second measuring beam path and/or second reference beam path are different from one of the first beam paths. The wave length difference is selected according to a distance of two measuring areas which are arranged at a distance in the depth direction of the sample. | 12-01-2011 |
| 20110264081 | OPHTHALMOLOGICAL LASER SYSTEM AND OPERATING METHOD - A polarization beam splitter selectively decouples detection light onto a detector such that it has a polarization direction that differs from the emitted illumination light. This enables the detection of the light scattered back in the eye lens at a high level of accuracy, since stray light from reflections at optical components of the light path is suppressed. In the generating of photo disruptions or other incisions, the ray exposure of the retina may be reduced in that the incisions being furthest away from the laser are induced first such that laminar gas inclusions with an existence duration time of at least 5 seconds result. In this manner the laser radiation propagated in the direction of the retina in further incisions are scattered and partially reflected such that the influence impinging upon the retina is reduced. | 10-27-2011 |
| 20110261320 | ARRANGEMENT FOR ATTAINING HIGH-PRECISION MEASUREMENTS OF AN EYE - A solution for attaining high-precision and reproducible measurements during opthalmological biometry and imaging includes an illumination unit for producing a fixation marker, a device for transmitting the light of the produced fixation marker into the eye, a measurement device and a control unit. The illumination unit includes a device for the targeted change of the beam direction of the produced fixation marker. A camera for the detection of the line of vision of the eye is connected to the control unit. The control unit determines the sufficient congruity between detected line of vision and displayed beam direction of the produced fixation marker and, in dependence of the degree of probability of the congruity, triggers a measurement. The suggested arrangement is applicable for opthalmological diagnostic devices, which exhibit a camera and a measuring system, whereby measurements can be taken in all areas of the eye. | 10-27-2011 |
| 20110255054 | DEVICE FOR SWEPT-SOURCE OPTICAL COHERENCE DOMAIN REFLECTOMETRY - A device for swept-source optical coherence domain reflectometry (SS OCDR) on moveable samples, particularly human eyes, for obtaining A-scans, having a measuring range according to the sample length and having a laser light source which can be adjusted by a main wave number k | 10-20-2011 |
| 20110251601 | OPHTHALMOLOGICAL LASER SYSTEM AND OPERATING METHOD - An ophthalmological laser system and operating method wherein laser-supported operative interventions can be achieved with higher accuracy. The cornea is irradiated with an ophthalmological laser and a detection light confocally recorded, the cornea being scanned in three-dimensions by irradiation with an illuminating laser power using a scanner unit along several directions at several points. Using the simultaneously recorded detection light the position and/or shape of a posterior boundary surface of the cornea is determined. A lamella parallel to the posterior boundary surface can then be cut. | 10-13-2011 |
| 20110238046 | DEVICE AND METHOD FOR CONTROLLING A LASER THERAPY OF THE EYE - A device for controlling a laser therapy of the eye, including an evaluation unit that determines an intensity of a transient temperature effect by analysis of interferometric signals obtained from the eye and a control unit that controls the laser therapy, which is based on said transient temperature effect, the control unit being connected with said evaluation unit. A method for controlling a laser therapy of the eye, includes determination of the intensity of a transient temperature effect that is utilized for the control of the laser therapy, based on the effect, by analysis of interferometric signals. | 09-29-2011 |
| 20110238045 | METHOD FOR CONTROLLING A DEVICE FOR TREATING THE HUMAN EYE - A method for controlling a device for the treatment or refractive correction of the human eye using an electronic data processing system provides a simple overview of the influence of all of the parameters. To this end, once the operating parameters have been determined, a graphical simulation of the operating procedure is carried out in the form of a graphical visualization. | 09-29-2011 |
| 20110228217 | METHOD AND DEVICE FOR INCREASING AN OPTICAL SYSTEM FOCAL DEPTH - A method for changing a property of an eye uses a continuously multifocal profile that includes a component for increasing a focal depth. The method includes calculating the component for increasing the focal depth to be rotation-symmetrical. Alternatively, or in addition, the calculating is carried out so as to optimize an encircled energy criterion over an extended range of depth. | 09-22-2011 |
| 20110224658 | OPHTHALMOLOGIC LASER SYSTEM AND OPERATING METHOD - An ophthalmologic laser system and an operating method. The laser system includes a laser, a scanner unit, a focusing lens and a beam splitter that directs radiation that reaches the beam splitter from the direction of the area of examination through a confocal aperture orifice onto a detector. The invention also includes a control unit with which a cornea arranged in the examination area can be irradiated by the laser at illumination laser power and detection light can be registered by the detector. The cornea is scanned in three dimensions, in that the cornea is irradiated at multiple points and detection light is registered from there. Based on the detection light, a laser cut in the cornea is identified and the form and/or position of the laser cut calculated. The invention further relates to refractive laser surgery. | 09-15-2011 |
| 20110208171 | METHOD AND DEVICE FOR FORMING CUT SURFACES IN A TRANSPARENT MATERIAL - A method and a device for forming cut surfaces in a transparent material, particularly in the cornea, by producing optical breakthroughs in the material by application of laser radiation focused into the material. The focal point is adjusted in three dimensions to form the cut surface by the sequential arrangement of optical perforations. The focal point is guided in such a manner that cutting is divided into at least two steps, and in at least one of the steps, the formation of the cut is carried out with a path radius that decreases in size, and in one of the steps, the cut formation is carried out with a path radius that increases in size. | 08-25-2011 |
| 20110205488 | METHOD, DEVICE AND ARRANGEMENT FOR MEASURING THE DYNAMIC BEHAVIOR OF AN OPTICAL SYSTEM - A method for measuring the dynamic behavior of an optical system is aimed at rendering the dynamic behavior of the optical system objectively detectable. To this end, the optical system to be measured is stimulated by stimuli whereby causing it to react, and the reaction is detected by means of a wave front analysis. | 08-25-2011 |
| 20110199575 | NON-REFLECTIVE IMAGING OPTICS FOR OPTICAL DEVICES, PARTICULARLY IN OPHTHALMOLOGY - Imaging optics for optical devices, with which reflections of the illumination light, which is guided through the same optical elements as the observation light, are kept from reaching the observation pupil of the imaging beam path. The non-reflective imaging optics include at least two refractive optical elements, which are utilized for illumination as well as observation. The at least two refractive optical elements are designed approximately wedge-shaped and are tilted at a random azimuth angle of at least 5° and/or are positioned off-center in the beam path to block out the single reflections of the illumination, occurring at the optical system surfaces, for the observation. The imaging optics are for optical devices, particularly in ophthalmology thought the invention is applicable to other ophthalmological devices as well as to optical devices outside of this field. | 08-18-2011 |
| 20110176110 | ARRANGEMENTS AND METHOD FOR MEASURING AN EYE MOVEMENT, PARTICULARLY A MOVEMENT OF THE FUNDUS OF THE EYE - In addition to a first detector for capturing a potential movement field of the eye in overview images, a second detector is used to capture a particular section of the eye in sectional images. From a displacement between two overview images and an intermediate displacement between two sectional images taken between said overview images, the eye movement is determined by linking said displacements. The sections are preferably illuminated by coherent light such that interfering light diffused on the eye produces a patch pattern. Alternatively, the sclera of the eye is illuminated with coherent light such that light diffused on the sclera produces a patch pattern, of which a particular part is captured using a spatially resolving detector in sectional images, on the basis of which an intermediate displacement is determined. | 07-21-2011 |
| 20110157552 | SS OCT INTERFEROMETRY FOR MEASURING A SAMPLE - An SS OCT interferometry device for measuring a sample, in particular from an eye. The device interferometrically generates a measuring signal and from the signal a depth-resolved contrast signal of the sample by spectral tuning of the central wavelength of the measurement radiation of a measuring signal, and has a control unit for this purpose. The device includes a sample motion detector, which provides a motion signal indicating movement of or in the sample, the control unit uses the motion signal to correct the measuring signal with respect to measuring errors that are caused by a movement of or in the sample before or during the generation of the depth-resolved contrast signal. | 06-30-2011 |
| 20110149245 | OPTICAL COHERENCE REFLECTOMETRY WITH DEPTH RESOLUTION - A device for performing distance measurements on an eye. The device includes an interferometer, focuses at least one measurement beam records backscattered radiation and interferometrically generates a measurement signal displaying structures of the eye by time-domain, spectral-domain or Fourier-domain coherence reflectometry, has an adjustment apparatus for laterally and/or axially displacing the focus in the eye or for varying a polarization state of the measurement beam and has a control apparatus which actuates the interferometer, wherein the control apparatus generates a plurality of A-scan individual signals from the backscattered radiation, combines these to an A-scan measurement signal and actuates the adjustment apparatus for displacing the position of the focus or for varying the polarization while recording the backscattered radiation from which the control apparatus generates the A-scan individual signals is being recorded. | 06-23-2011 |
| 20110122365 | Eye Surgery System and Methods of Preparing and Performing an Eye Surgery - A method for carrying out eye surgery comprises a comparison of images recorded before surgery with images recorded during surgery in order to generate a marker which represents a target orientation of an intraocular lens or a difference between a current orientation and the target orientation of the intraocular lens. An eye surgery system respectively comprises an imaging system which is used during a surgery and has a camera, and a diagnostic system which is used before surgery and which also has a camera. The imaging system used during surgery comprises an image processing device in order to perform a computation based on the recorded images, and in order to determine a respective orientation value, from which a representation of a marker representing the target orientation of the intraocular lens is obtained. | 05-26-2011 |
| 20110116040 | OPHTHALMOLOGIC APPARATUS AND METHOD FOR THE OBSERVATION, EXAMINATION, DIAGNOSIS, AND/OR TREATMENT OF AN EYE - An ophthalmologic apparatus and a method for the contactless observation, examination, treatment, and/or diagnosis of an eye. The apparatus is structurally based on a fundus camera or an ophthalmoscope. An illumination beam path extends from a first illumination source to the eye and is fitted with a perforated mirror and imaging optics, and an observation beam path extends from the eye to a detector via the imaging optics and through the perforated mirror. The arrangement additionally comprises a beam path for scanning illumination which extends from a second illumination source to the eye and is fitted with a scanning unit, a lens, and a beam splitter in addition to the imaging optics. The scanning unit that is arranged in the beam path for scanning illumination is designed as (an) electrostatically or/and galvanometrically driven bidirectional or unidirectional tilting mirror(s). | 05-19-2011 |
| 20110109913 | SHORT COHERENCE INTERFEROMETRY FOR MEASURING FOR MEASURING SPACINGS - A short coherence interferometer for measuring several axially spaced-apart regions of a sample, especially of an eye, which has a measuring optical path, through which the measuring radiation falls on the sample, a tunable interferometer for the axial, relative retardation of parts of the radiation, wherein the axial relative retardation is assigned to the axial spacing of the regions and a detector for producing an interference signal from interfering measurement radiation, scattered or reflected back from the sample as sample radiation. The tunable interferometer divides the sample radiation into two parts, which are axially relatively retarded and superimposed so as to interfere. During the superimposition, the tunable interferometer forms individual radiations, which represent quadrature components of the sample radiation, and the detector detects the individual radiations. | 05-12-2011 |
| 20110102810 | APPARATUS AND METHOD FOR MATERIAL PROCESSING USING A TRANSPARENT CONTACT ELEMENT - A method of preparing an apparatus for material processing by generating optical breakthroughs in an object. The apparatus includes a variable focus adjustment device. A contact element is mounted to the apparatus, the contact element has a curved contact surface having a previously known shape. The position of the contact surface is determined prior to processing the object, by focusing measurement laser radiation near or on the surface by the variable focus adjustment device, and the focus position is adjusted in a measurement surface intersecting the expected position of the contact surface. Radiation from the focus of the measurement laser radiation is confocally detected. The position of points of intersection between the measurement surface and the contact surface is determined from the confocally detected radiation to determine the position of the contact surface from the position of the points of intersection and the previously known shape of the contact surface. | 05-05-2011 |
| 20110085137 | RING LIGHT FUNDUS CAMERA - A fundus camera includes a viewing optical path, an imaging device, and an illuminating optical path including at least one LED and a pinhole mirror reflecting the at least one LED into the imaging device, wherein at least a portion of the illuminating optical path shares an optical axis with at least a portion of the viewing optical path, and wherein the at least one LED includes a plurality of LEDs disposed in a shape of a ring. | 04-14-2011 |
| 20110069366 | OPTICAL DEFLECTION DEVICE FOR SCANNING, OPHTHALMOLOGIC MEASUREMENT AND THERAPY SYSTEM - An optical deflection unit for targeted radiation, e.g., produced by laser or superluminescent diodes, in scanning, ophthalmological measuring and therapy systems, comprises a deflection mirror, a position sensor and a control unit, which form a control circuit for minimizing the deviation of the actual positions, detected by the position sensor, from the desired positions of the deflection mirror, whereby the optical deflection unit comprises a deflection mirror, oscillatingly movable by means of non-contacting electromagnetic drives around at least one rotation axis, and which is positioned in the direction of the, at least, one rotation axis between at least two bearings. The optical deflection unit is designed may also be used for beam guidance in high and ultrahigh vacuum installations, such as UV and EUV exposure installations for semiconductor lithography. | 03-24-2011 |
| 20110069279 | OPHTHALMOLOGIC 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 |
| 20110066143 | OPTOMETRIST CLIENT - A method of providing optometric parameters for an optometric procedure includes locating patient identification information on a central data storage by transmitting a search query from a computing device communicating with the central data storage. The search query generates a result set containing at least one patient having patient identification information substantially matching the search query. From the result set, a patient undergoing the optometric procedure is selected. An input form for this patient is then displayed with input fields corresponding to each of the optometric parameters. A qualified collector obtains the measurement values for the optometric parameters and inputs them into respective input fields. A data record containing the measurement values and the patient identification information is generated and transmitted to the central data storage. The data record can then be transmitted to a planning tool communicating with the central data storage for performing the optometric procedure. | 03-17-2011 |
| 20110058715 | METHOD FOR THE CREATION OF PANORAMIC IMAGES OF THE EYE FUNDUS - A method for creating or calculating panoramic images of the eye fundus particularly from images of a fundus camera. In the method a pre-positioning process is carried out in which a first variable is determined for geometrically associating the images with each other. An anchor image is determined as a reference for the first variables for the geometric association; areas that are associated with each other are determined in the anchor image and the other images by a block-matching algorithm; transformation parameters for a geometric transformation between the anchor image and the other images are determined from the mutual position of the associated areas; and the other images are transformed onto the anchor image by transformation parameters and are superimposed onto the anchor image and among each other. | 03-10-2011 |
| 20110040294 | Method and device for the representation of an operation area during laser operations - A method for monitoring the processing of a lens includes recording the lens using a spatial recording system so as to generate image information for the lens; generating an actual three-dimensional image of the lens from the image information on a spatial display unit; and displaying the actual three-dimensional image of the lens together with a predetermined three-dimensional image of at least a portion of an eye on the spatial display unit. | 02-17-2011 |
| 20110034911 | METHOD FOR GENERATING CONTROL DATA FOR EYE SURGERY, AND EYE-SURGICAL TREATMENT DEVICE AND METHOD - A method for generating control data for an eye-surgical treatment device, which separates tissue layers in the eye cornea by application of a laser device, wherein a contact glass having a contact surface deforms the cornea to conform to the shape of the contact surface during the operation of the laser device. The contact surface is first placed on a cornea apex at a contact surface apex and is then pressed against the same for deforming the cornea. The method includes: generating the control data of the laser device such that the data specifies coordinates of target points located in the cornea for the laser device, and upon generation of the target point coordinates the deformation of the cornea which is present during the operation of the laser device as a result of the contact glass is taken into consideration. The invention provides that the several steps are carried out in consideration of the deformation in order to determine a displacement of a point P in the undeformed cornea caused by the deformation. | 02-10-2011 |
| 20100331831 | TREATMENT DEVICE FOR OPERATIVELY CORRECTING DEFECTIVE VISION OF AN EYE, METHOD FOR PRODUCING CONTROL DATA THEREFOR AND METHOD FOR OPERATIVELY CORRECTING DEFECTIVE VISION OF AN EYE - A treatment apparatus for operatively correcting myopia or hyperopia in an eye includes a laser device controlled by a control device and that separates the corneal tissue by applying a laser beam. The control device controls the laser device to emit the laser beam into the cornea such that a lenticule-shaped volume is isolated in the cornea. The control device, when controlling the laser device, predefines the lenticule-shaped volume such that the volume has a minimum thickness of between 5 and 50 μm. For myopia correction, the minimum thickness occurs on the edge of the volume, and for hyperopia correction the minimum thickness occurs in the region of the visual axis. | 12-30-2010 |
| 20100331830 | TREATMENT DEVICE FOR SURGICALLY CORRECTING AMETROPIA OF AN EYE AND METHOD FOR CREATING CONTROL DATA THEREFORE - A treatment device for the surgical correction of hyperopia in the eye comprising a laser device controlled by a control device. The laser device separating corneal tissue by applying laser radiation. The control device controls the laser device for emitting the laser radiation into the cornea such that a lenticule-shaped volume is isolated. Removal thereof effects the desired correction. The control device ( | 12-30-2010 |
| 20100328607 | OPHTHALMOLOGICAL MEASURING SYSTEM AND METHOD FOR DETERMINING THE BIOMETRIC DATA OF AN EYE - An ophthalmological measuring system for obtaining biometric data of an eye with a view to the pre-operative determination of a replacement lens or supplementary lens or refractive operations. The invention includes a combination of a measuring instrument based on ultrasound, an optical measuring instrument, and an evaluation unit, measuring values of the optical measuring instrument and/or of the measuring instrument based on ultrasound being used by the evaluation unit for determining the biometric data of an eye. Furthermore, keratometric and/or pachymetric measurements can also be carried out. The combination of different measuring systems enables a complete examination or diagnosis of a patient on a measuring table, so that the patient does not need to be moved, or have to come back at a later date for more measurements. | 12-30-2010 |
| 20100302550 | DEVICE AND METHOD FOR THE OPTICAL MEASUREMENT OF RELATIVE DISTANCES - An optical time domain coherence tomograph including an object beam path, a detection beam path and a detector unit. An interferometer unit, which has a first and a second beam path part having different optical path lengths, splits radiation and feeds it into the two beam path parts and superimposes it again after passage through the beam path parts and thus generates a dual beam, which has components which are axially offset to one another because of the differing optical path lengths of the two beam path parts. A scanning unit has a first adjuster and a second adjuster for adjusting the optical path length of the first and second beam path parts and the first and the second adjustment means adjusting the path length for scanning the object in coordination to one another under control by the control unit. | 12-02-2010 |
| 20100284021 | SHORT COHERENCE INTERFEROMETER - A short coherence interferometer apparatus for measuring multiple axially spaced regions of a specimen, in particular the eye, which has at least one measuring beam path, through which multiple individual measuring beams are incident on the specimen, and one reference beam path, through which a reference beam runs, with which the individual measuring beams are superimposed and brought into interference. The individual measuring beams are axially offset to one another upon incidence on the specimen by an amount which is adapted to the axial spacing. The interferometer apparatus superimposes each individual measuring beam with the reference beam in an interfering manner and conducts it to a detector associated with the particular individual measuring beam. The individual measuring beams are combined into a mixture in which they have varying phasing in the superposition with the reference beam. | 11-11-2010 |
| 20100277695 | APPLICATOR 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 |
| 20100274233 | METHOD AND DEVICE FOR PERFORMING ONLINE ABERROMETRY IN REFRACTIVE EYE CORRECTION - A device for correcting visual defects of an eye comprises a coherent light source, a beam modification device for shaping and deflecting a beam of the coherent light source, and a wavefront analyzer device for analyzing a wavefront of an optical path in the eye | 10-28-2010 |
| 20100274232 | LASER SYSTEM - A laser system for the irradiation of an eye includes a laser configured to emit a laser beam; a focusing device configured to focus the laser beam; and a beam-shaping device configured to generate a predetermined intensity distribution in a cross section of the laser beam such that an intensity minimum of the laser beam is disposed in region of a center of the cross section of the laser beam. | 10-28-2010 |
| 20100238401 | DEVICE AND METHOD FOR EXAMINING THE EYE FUNDUS, ESPECIALLY THE PHOTORECEPTORS - A device for examining the eye fundus and photoreceptors includes an illumination beam path having optical beam forming and/or guiding components, at least one illumination unit for providing a continuous illumination and a flash illumination, and an observation and imaging beam path having optical beam forming and/or guiding components and a device for varying the magnification, including a beam splitter for splitting the observation and imaging beam path. A rotatable diffraction grating is disposed in a plane in the observation and imaging beam path that is conjugate to the object plane and the movement of the grating is synchronized with the illumination unit that serves as the flash illumination so that an image recording sensor records a rapid sequence of images of the eye fundus at different positions of the grating and said sequence is forwarded to an existing evaluation unit. | 09-23-2010 |
| 20100228236 | ADAPTER FOR COUPLING A LASER PROCESSING DEVICE TO AN OBJECT - An adapter contact lens to be applied in contact with an anterior corneal surface. The adapter includes a contact glass portion having a corneal contact surface curvature that is flatter than that of the undeformed anterior corneal surface. When the contact glass is applied the cornea deforms assume a deformed state corneal curvature that is parallel to the flatter corneal contact surface curvature. A mount portion circumferentially surrounds the contact glass and defines a suction duct that is structured to secure the adapter to the cornea by negative pressure when it is brought into contact with a surface of the eye surrounding the contact glass portion. The suction duct being partially defined by a peripheral edge of the mount; that extends outwardly away from the mount portion and toward but not intersecting or extending beyond a geometric continuation of the corneal contact surface curvature. | 09-09-2010 |
| 20100214533 | Spectrometer - A spectrometer is described, especially for an optical coherence tomograph ( | 08-26-2010 |
| 20100191230 | APPARATUS FOR INDIVIDUAL THERAPY PLANNING AND POSITIONALLY ACCURATE MODIFICATION OF AN OPTICAL ELEMENT - A navigation apparatus for optically analyzing an inner structure of an optical element and processing that element comprises a detection device and a processing device. The detection device has an aperture smaller than 0.25 and the processing device is disposed relative to the analyzed inner structure of the optical element. An apparatus for planning therapy for a human eye comprises a dynamic wavefront measurement device for acquiring wavefront data, a diagnostic device for determining geometric parameters of the optical apparatus of the eye, a controller for consistent superposition of the wavefront and geometric data, and an additional controller for planning the most efficient therapeutic laser cutting paths. | 07-29-2010 |
| 20100145319 | COAGULATION SYSTEM - A coagulation system for the coagulation of organic tissue includes a laser configured to emit a working beam; an interrupter configured to at least partially interrupt the working beam; a controller configured to activate the interrupter; and a detector configured to detect a signal corresponding to a degree of coagulation or alteration of the tissue and to transmit a detection of the signal to the controller, the detector including a dimension meter. | 06-10-2010 |
| 20100137849 | MULTIPLE-SPOT LASER REFRACTIVE OPHTHALMIC SURGERY - An apparatus for material processing by laser radiation, including a laser source which emits a processing beam, and a beam path for focusing and scanning, the beam path focusing the processing beam into a processing volume and shifting the position of the focus therein. A beam splitting device generates several foci in the processing volume and the beam splitting device splits the processing beam up into a primary beam and at least one secondary beam and leaves the cross section of the beam in a pupil plane of the beam path unchanged during said division and introduces an angle of separation between the primary and secondary beams, so that these beams expand in the beam path in directions which differ by the angle of separation. | 06-03-2010 |
| 20100134763 | METHOD FOR DETERMINING THE POWER OF AN INTRAOCULAR LENS - For the pre-operative calculation of the power of an intraocular lens, three input parameters are needed: the axial length of the eye (AL), the refractive power of the cornea, and the distance between the front of the cornea and the back focal plane of the intraocular lens, the so-called effective lens position (ELP). The invention shows a novel approach to the determination of the ELP. | 06-03-2010 |
| 20100114076 | METHOD OF PERFORMING REFRACTIVE LASER EYE SURGERY CENTERED ALONG THE VISUAL AXIS OF A HUMAN EYE - A method of performing refractive laser eye surgery on a human eye is provided wherein the ablation pattern is centered along the visual axis, rather than along the line of sight. First, a wavefront, either ocular, corneal or a combination thereof, is generated by a wavefront sensor centered along the line of sight. This measured wavefront is centered on and encompasses a patient's pupil. Then, an analysis pupil is determined which encompasses the measured pupil. The analysis pupil is centered along the visual axis at the point of intersection with the cornea. Consequently, the measured wavefront is reconstructed over the analysis pupil only using data taken over the area covered by the measured pupil. This reconstruction is done through a least squares fit of a series of slopes from the measured wavefront and/or through the transformation of aberration coefficients. Finally, an ablation pattern, or a lenticule generation pattern, to be performed by a refractive laser centered on the corneal intersect of the visual axis is produced in accordance with the reconstructed wavefront. | 05-06-2010 |
| 20100087802 | CORNEA TRANSPLANTATION - A planning device generating control data for a treatment apparatus for cornea transplantation using a laser device to separate a corneal volume by at least one cut surface in the cornea and to separate a transplant, from a surrounding transplantation material by at least one cut surface wherein the planning device includes an interface supplying measurement data relating to parameters of the cornea. A computer defines a corneal cut surface which confines the corneal volume to be removed, and determines a transplant cut surface by using the transplantation material data and depending on the defined corneal cut surface. The transplant cut surface confines the transplant, and the computer generates one control data for each cut surface to control the laser, wherein the respective cut surfaces can be produced by the laser to isolate the corneal volume and the transplant and to make them removable. | 04-08-2010 |
| 20100066823 | METHOD AND DEVICE FOR PRODUCING AN IMAGE OF A THIN LAYER OF AN OBJECT - A method for producing an image of a layer of an object by a wide field optical element on a resolving detector. The object is illuminated in a focused manner on at least one object plane having at least two binary illuminating patterns. The corresponding images are detected. Light and/or the dark areas of the illuminating patterns completely cover the object when the illuminating pattern is superimposed. A layer image determined from the detected images, includes a partial segment that respectively reproduces a partial area of the object that is arranged inside the light area of one of the used illuminating patterns. Edges are arranged at a distance from the edges of the light area about at least one predefined minimum distance. | 03-18-2010 |
| 20100053554 | OPHTHALMOLOGICAL EXAMINATION DEVICE - The invention relates to an opthalmological measuring instrument, e.g. for determining the corneal curvature, anterior chamber depth, axial length, or the like, comprising measuring systems for determining said variables. The measuring systems are connected to an evaluation unit which verifies whether quality parameters regarding the measurements are satisfied and generates a corresponding signal that indicates to the user that a proper measurement can be taken. | 03-04-2010 |
| 20100049174 | APPARATUS FOR GENERATING A CORRECTING CUT SURFACE IN THE CORNEA OF AN EYE SO AS TO CORRECT AMETROPIA AS WELL AS A CONTACT ELEMENT FOR SUCH APPARATUS - An apparatus for generating a correcting cut surface in the cornea of including a laser unit, which can focus and move pulsed laser radiation; a first contact element; and a control unit, controlling the laser unit which has a standard setting which, when a standard curvature is imposed upon corneal surface by the first contact element, would lead to a standard cut surface. The standard cut surface has a known curvature with respect to a reference surface. The curvature, with respect to the reference surface of the correcting cut surface to be generated deviates from the known curvature of the standard cut surface. The apparatus includes a second contact element adapted to generate the correcting cut surface, which cornea imposes an actual curvature deviating from the standard curvature, thus generating a cut surface using the standard setting results in the correcting cut surface to be generated. | 02-25-2010 |
| 20100030332 | ACCOMMODATIVE LENS IMPLANT, CONTROLLED BY THE CILIARY MUSCLE - The invention relates to an accommodative lens implant controlled by the ciliary muscle, consisting of at least one or more lenses made of preferably biocompatible material and disposed on a common optical axis, the at least one lens being a component of a flexible, closed implant body that is transparent in the region of the actual lens, is engaged at its outer periphery with the ciliary muscle, and has a main axis that coincides with the visual axis, and in addition at least part of the implant body with the lens or lenses comprises a fluid filling, such that the axial position of the lens or the lens system can be altered by activation of the ciliary muscle, the implant body being inserted in the sulcus of the posterior chamber of the eye or attached to the ciliary muscle. | 02-04-2010 |
| 20100026956 | OPHTHALMIC APPARATUS AND OPHTHALMIC METHOD FOR POSITIONING AN EYE OF A PATIENT IN A PREDETERMINED NOMINAL POSITION - An ophthalmic apparatus including a supporting device for a patient and an eye treatment device. The apparatus includes a contact element for spatially fixing an eye of the patient with respect to the treatment device, and a positioning device for shifting the supporting device and a contact element relative to each other in order to position the eye, before it is fixed using the contact element, at a predetermined nominal position relative to the contact elements. The ophthalmic apparatus includes a detection device, which records an image of the eye of the patient present on the supporting device and, on the basis of said recorded image, determines an indication concerning a relative shift of the supporting device with respect to the contact element, which shift is required to move the eye to the nominal position by means of the positioning device. | 02-04-2010 |
| 20100023772 | METHOD FOR GENERATING A ONE-TIME ACCESS CODE - A method for generating an access code for a device or system. The one-time access code generated by the method for the device or system is valid only once. The method can be used for supplying goods or services by means of automatic or semiautomatic access control devices or systems, for example. | 01-28-2010 |
| 20090326522 | OBJECT FIGURING DEVICE - A device for shaping objects by removal of material from the surface thereof with a pulsed laser beam and a deflecting device through which the laser bean is guided over the surface of the object. An optical device is provided for changing the distribution of the radiation intensity inside the laser beam cross section. After the passage of the laser beam through this optical device, the radiation intensity has a bell-shaped or Gaussian distribution, or a distribution similar to a bell-shaped or Gaussian distribution, in at least one cross-sectional direction through the laser beam. | 12-31-2009 |
| 20090257024 | OPHTHALMOLOGICAL INSTRUMENT - A homogeneously illuminating ophthalmic instrument includes an illumination device having a source of illumination, a homogenizing unit and a projection device, at least one organic or inorganic source of radiation with spectrally selective emission being used as a source of illumination. The illumination generated in this way enables correspondingly adapted visual and/or digital observation, recording or display of the examined regions of the eye by a visualizing unit. | 10-15-2009 |
| 20090241184 | METHOD FOR GENERATING ACCESS DATA FOR A MEDICAL DEVICE - A method for generating an access code to a medical device including a memory for patient data, the access code being valid only once. According to the method, a query key is generated from a device-internal identification and is transmitted to an authorization entity. The authorization entity generates an associated release key from the query key. The release key grants access and modifies the internal identification when the release key is entered into the device such that the access code cannot be used a second time. | 09-24-2009 |
| 20090207874 | MULTIWAVELENGTH LASER SYSTEM AND METHOD FOR OPHTALMOLOGICAL APPLICATIONS - A multiwavelength laser system for opthalmological applications. The system including a first semiconductor diode laser including a first working beam of a first wavelength; and at least one second semiconductor diode laser having a second working beam of a second wavelength. The second wavelength being different from the first wavelength. | 08-20-2009 |
| 20090115967 | Optical 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 |
| 20090096986 | Unit and Method for Internally Guiding Vision in Fundus Cameras - The present invention is directed to an optoelectronic unit for directing the eye gaze of the patient during examination or documentation of the fundus of the eye. The solution according to the invention for internal eye gaze guidance in fundus cameras provides a spatial light modulator for generating the fixation mark comprising imaging optics by which the displayed fixation mark is imaged on the eye fundus by a semitransparent mirror arranged in an observation beam path and via a swivel mirror arranged in a documentation beam path. The spatial light modulator is connected by a control unit to an actuating element for positioning the fixation mark. The device, which is preferably provided for fundus cameras, can facilitate the diagnosis of diseases of the eye fundus in that the documented recordings can be exactly reproduced and therefore exactly compared. In particular, the tracking and presentation of the course of diseases can be improved in this way. | 04-16-2009 |
| 20080319464 | RE-TREATMENT FOR OPHTHALMIC CORRECTION OF REFRACTION - A planning device generating control data for a treatment apparatus for refraction-correcting ophthalmic surgery is provided, said apparatus using a laser device to separate a corneal volume, which is to be removed for correction, from the surrounding cornea by at least one cut surface in the cornea of an eye, said planning device comprising an interface for receiving corneal data including information on pre-operative cuts which were generated in a previous ophthalmic operation, and computing means for defining a corneal cut surface which confines the corneal volume to be removed, said computing means defining the corneal cut surface on the basis of the corneal data and generating a control dataset for the corneal cut surface for control of the laser device. | 12-25-2008 |
| 20080319428 | TREATMENT APPARATUS FOR SURGICAL CORRECTION OF DEFECTIVE EYESIGHT, METHOD OF GENERATING CONTROL DATA THEREFORE, AND METHOD FOR SURGICAL CORRECTION OF DEFECTIVE EYESIGHT - A treatment method and apparatus for surgical correction of defective-eyesight in an eye of a patient, wherein a laser device is controlled by a control device, said laser device separating corneal tissue by irradiation of laser radiation to isolate a volume located within a cornea, wherein the control device controls the laser device to focus the laser radiation, by providing target points located within the cornea, into the cornea, wherein the control device, when providing the target points, allows for focus position errors which lead to a deviation between the predetermined position and the actual position of the target points when focusing the laser radiation, by pre-offsets depending on the positions of the respective target points to compensate for said focus position errors. | 12-25-2008 |
| 20080310031 | Variable Lens - The invention relates to a variable lens for controlling electromagnetic radiation that interacts with said lens in a controlled manner. The lens includes a container; a first dielectric fluid that is held in the container; a second dielectric fluid that is held in the container, a phase boundary layer between the first and the second fluid. The relative dielectric constant of the first fluid is different from a relative dielectric constant of the second fluids. At least one first electrode; and at least one second electrode is positioned in relation to the first electrode in such a way that an electric current that is applied between the first and the second electrode generates an electric field, which infiltrates the phase boundary layer. | 12-18-2008 |
| 20080300581 | Device and Method for Photocoagulation of the Retina - A device for photocoagulation of a retina includes a radiation source and an optical application system including a representation device configured to depict regions of the retina with sub-threshold coagulation. In addition a method for photocoagulation of the retina is provided. | 12-04-2008 |
| 20080285043 | Interferometric Sample Measurement - A device for the interferometric measurement of a sample, in particular the eye, including an interferometer arrangement with a first measurement beam path, through which a measurement beam falls onto the sample, and a first reference beam path, through which a reference beam runs, which is applied to the measuring beam for interference. The interferometer arrangement includes a second measuring beam path and/or second reference beam path. The optical path lengths of the second measuring beam path and/or second reference beam path are different from one of the first beam paths. The wave length difference is selected according to a distance of two measuring areas which are arranged at a distance in the depth direction of the sample. | 11-20-2008 |
| 20080278684 | Ophthalmological Measuring System and Method for Determining the Biometric Data of an Eye - An opthalmological measuring system for obtaining biometric data of an eye. with a view to the pre-operative determination of a replacement lens or supplementary lens or refractive operations. The invention includes a combination of a measuring instrument based on ultrasound, an optical measuring instrument, and an evaluation unit, measuring values of the optical measuring instrument and/or of the measuring instrument based on ultrasound being used by the evaluation unit for determining the biometric data of an eye. Furthermore, keratometric and/or pachymetric measurements can also be carried out. The combination of different measuring systems enables a complete examination or diagnosis of a patient on a measuring table, so that the patient does not need to be moved, or have to come back at a later date for more measurements. | 11-13-2008 |
| 20080275433 | APPARATUS AND METHOD FOR GENERATING CUT SURFACES IN THE CORNEA OF AN EYE FOR CORRECTION OF AMETROPIA - An apparatus for generating cut surfaces in the cornea of an eye in order to correct ametropia is provided, said apparatus comprising a laser unit, which can focus pulsed laser radiation into the cornea and move it therein in order to generate cut surfaces, and a control unit, which controls the laser unit for generating cut surfaces such that a predetermined lenticle to be removed is separated from the surrounding corneal material in the cornea by at least one cut surface, and that at least two mutually spaced apart cut surfaces are formed as opening cuts, each extending from the lenticle to the anterior corneal surface, the position and shape of the opening cuts being selected such that the opening cuts contribute to the correction of the ametropia of the eye or do not counteract the correction of the ametropia of the eye. | 11-06-2008 |
| 20080269729 | UNINTERRUPTED POWER SUPPLY, ESPECIALLY FOR A REFRACTIVE LASER - The invention concerns an uninterruptible power supply that is used in particular with a refractive laser. A rechargeable battery is provided, whereby prior to beginning the treatment the capacity of the battery is tested to assure that it is sufficient to safely complete the treatment in the event the voltage supply is interrupted. | 10-30-2008 |
| 20080234707 | Contact Glass for Ophthalmic Surgery - In a contact glass for ophthalmic surgery, which comprises a lens body ( | 09-25-2008 |
