Class / Patent application number | Description | Number of patent applications / Date published |
351207000 | Having spurious reflection blocking | 26 |
20080278686 | Fundus camera - The components of a fundus camera for observing an eye ( | 11-13-2008 |
20100007849 | OPHTHALMOSCOPE - An opthalmoscope for examining a patient's eye includes an illumination device for generating an illumination beam Illumination imaging optics image the illumination beam onto the eye, and a scanning device scans the illumination beam over the eye. The opthalmoscope also includes an observation device and observation imaging optics for imaging an observation beam generated by reflection of the illumination beam from the eye onto the observation device. An electronic shutter excludes stray light from the observation beam. The observation device comprises an electronic sensor with an array of photosensitive pixels that can respectively be activated and/or read out in rows, and the scanning device includes an electronic drive circuit for reading out at least one pixel row of the sensor. | 01-14-2010 |
20100014052 | OPTICAL SYSTEM FOR A FUNDUS CAMERA - The invention is directed to an optical system for a fundus camera for reflection-free opthalmoscopy having a beam path with refractive and reflective optical elements which are used substantially in common for illumination and observation or recording. An imaging mirror system substantially comprising a plurality of reflecting optical elements in the form of mirrors and is provided for illuminating and imaging the fundus. At least one optical element, for example, mirror, is formed as a freeform mirror with an imaging, reflecting freeform surface. The optical elements are arranged in a housing in a precisely defined position and attitude relative to one another in such a way that an imaging of the reflecting surfaces of the optical elements on the image of the imaged retina is prevented within a wide diopter range of the patient's eye to be examined. | 01-21-2010 |
20100128221 | LASER SCANNING DIGITAL CAMERA WITH PUPIL PERIPHERY ILLUMINATION AND POTENTIAL FOR MULTIPLY SCATTERED LIGHT IMAGING - A portable, lightweight digital imaging device uses a slit scanning arrangement to obtain an image of the eye, in particular the retina. In at least one embodiment, a digital retinal imaging device includes an illumination source operable to produce a source beam, wherein the source beam defines an illumination pathway, a scanning mechanism operable to cause a scanning motion of the illumination pathway in one dimension with respect to a target, an optical element situated within the illumination pathway, the optical element operable to focus the illumination pathway into an illumination slit at a plane conjugate to the target, wherein the illumination slit is slit shaped, a first two dimensional detector array operable to detect illumination returning from the target and acquire one or more data sets from the detected illumination, wherein the returning illumination defines a detection pathway, and a shaping mechanism positioned within the illumination pathway, wherein the shaping mechanism shapes the source beam into at least one arc at a plane conjugate to the pupil. In at least one exemplary embodiment, the digital retinal imaging device is operable to minimize at least one aberration from the optical element or an unwanted reflection from the target or a reflection from a device. | 05-27-2010 |
20100283971 | Ophthalmic photography apparatus - A monocular image of a fundus of an eye under examination is captured via a photographic stop for monocular photography, and two stereographically viewed images are captured with a parallax via two photographic stops for stereographic photography that are decentered from a photographic optical axis. Defocused images are captured in the stereographic photography due to the deviation of the photographic stops from the optical axis. A corrective lens is inserted into the photographic optical path in order to correct the defocus in the stereographic photography. This makes it possible to readily correct defocus generated by deviation of the photographic stops from the photographic optical axis even when switching between monocular and stereographic photography modes. | 11-11-2010 |
20110176111 | OPHTHALMIC PHOTOGRAPHING APPARATUS - An ophthalmic photographing apparatus includes: an interference optical system including a splitter that splits light, emitted from a measurement light source, into measurement light and reference light, and synthesizing the measurement light reflected on an eye with the reference light to guide the synthesized light to a detector; a driving part that moves an optical member arranged in the optical path to adjust an optical-path difference between the measurement light and the reference light; an image obtaining part that obtains a tomographic image of a fundus or an anterior segment based on a light receiving signal output from the detector; and a driving control unit that controls driving of the driving part to locate the optical member in a predetermined position corresponding to either a photographing mode for photographing the tomographic image of the fundus or a photographing mode for photographing the tomographic image of the anterior segment. | 07-21-2011 |
20110234977 | APPARATUS AND METHOD FOR IMAGING AN EYE - The present invention is a slit lamp mounted eye imaging, a slit lamp integrated, a handheld, OCT integrated, or attached to a separate chinrest-joystick assembly apparatus and method for producing a wide field and/or magnified views of the posterior or the anterior segments of an eye through an undilated or dilated pupil. The apparatus images sections and focal planes and utilizes an illumination system that uses one or more LEDs, shifting optical elements, flipping masks, and/or aperture stops where the light can be delivered into the optical system on optical axis or off axis from center of optical system and return imaging path from the eye, creating artifacts in different locations on the eye image. Image processing is employed to detect and eliminate artifacts and masks from images. The apparatus can be used in combination with an OCT, microscope and can be disposed in a hand-held housing for hand-held use. | 09-29-2011 |
20120044458 | FUNDUS CAMERA - A fundus camera according to the present invention includes a light metering unit configured to change a light metering area within an image captured by an imaging unit based on one of a position and a size of a light blocking member, and a controlling unit configured to control an amount of light emission from a light source based on a light metering value corresponding to the light metering area. | 02-23-2012 |
20130057828 | HANDHELD PORTABLE FUNDUS IMAGING SYSTEM AND METHOD - A system and method for fundus imaging wherein selective illumination of a sector of the field of view of the fundus, using off-axis illumination, provides images of acceptable clarity, resolution, and size, with significantly reduced reflections, in a compact system. By rotating illumination around the optical axis, sectors of the fundus may be selectively and sequentially illuminated. An image of the entire field of view of the fundus is obtained by combining images, e.g. two or more half images, obtained within a single shutter exposure or capture period. An illumination system using LED light sources and a rotatable occluder provides for a lightweight, handheld and portable fundus imaging system. It may take the form of a fundus camera, a fundus imaging lens module for regular camera, or an adapter which couples to the standard lens of a camera to create a low cost fundus camera. | 03-07-2013 |
20130250242 | FUNDUS CAMERA - An apparatus and method of providing an ophthalmic image is presented. In accordance with embodiments of the present invention, an illumination path with a focus index optical assembly and a first diopter compensator is provided and an imaging path with a sensor and a second diopter compensator is provided. The first diopter compensator and the second diopter compensator can be adjusted to provide focus according to a focus index from the focus index optical assembly. | 09-26-2013 |
20140049749 | METHOD AND DEVICE FOR HIGH-RESOLUTION RETINAL IMAGING - The invention relates, according to one aspect, to a retinal imaging device including at least one source (LS | 02-20-2014 |
20140063459 | APPARATUS AND METHOD FOR OPERATING A REAL TIME LARGE DIOPTER RANGE SEQUENTIAL WAVEFRONT SENSOR - An apparatus including a wavefront sensor including a light source configured to illuminate a subject eye, a detector, an image sensor configured to output an image of the subject eye, a first beam deflecting element configured to intercept a wavefront beam returned from a subject eye when the subject eye is illuminated by the light source and configured to direct a portion of the wavefront from the subject eye through an aperture toward the detector and a controller, coupled to the light source, the image sensor and the beam deflecting element, configured to process the image to determine transverse movement of the subject eye and to control the beam deflecting element to deflect and project through the aperture portions of an annular ring portion of the wavefront and further configured to pulse the light source at a firing rate to sample selected portions of the annular ring at the detector, to process the image of the subject eye to calculate transverse movement of the subject eye and to orient the beam deflecting element at a DC offset angle to compensate transverse movement of the subject eye. | 03-06-2014 |
20140078467 | IMAGING AND LIGHTING OPTICS OF A CONTACT EYE CAMERA - The optical design for a contact type portable eye imaging apparatus, including the imaging optics and illumination optics are proposed, which utilizes miniature image sensor and solid state light emitting technology, as the next generation of medical imaging devices, in particular in ophthalmic imaging applications. | 03-20-2014 |
20140085607 | IMAGE DETECTING APPARATUS AND IMAGE DETECTING METHOD - An image detecting apparatus for detecting a first eyeball is provided. The image detecting apparatus includes an illumination light source, an imaging lens, an image sensing device, a display and a viewfinder. The illumination light source emits an illumination beam, and the illumination beam irradiates the first eyeball. The first eyeball reflects the illumination beam into an image beam. The imaging lens is disposed on a transmission path of the image beam. The image sensing device is disposed on the transmission path of the image beam, wherein the imaging lens is disposed between the first eyeball and the image sensing device. The display shows the image formed by the image beam. The viewfinder is disposed in front of the display such that a second eyeball observes the display via the viewfinder. An image detecting method is also provided. | 03-27-2014 |
20140146288 | RETINAL IMAGING DEVICE - A retinal imaging device and illumination module. The illumination module includes a light source to provide an incident beam along an illumination axis, a condenser lens at a spaced apart distance from the light source for condensing the incident beam and emanating a condensed incident beam, a transparent plate at a spaced apart distance from the condenser lens, wherein the transparent plate comprises a light absorber, at least one projections lens system to focus the condensed incident beam, a shield at a spaced apart distance from the projection lens system to yield a first partially blocked beam to form a comea illumination doughnut, and a perforated mirror comprising a hollow cylinder. A portion of the hollow cylinder protrudes out from a reflecting face of the mirror, forming an elliptical stopper to yield a second partially blocked beam to form a pupil illumination doughnut, enabling reflex-free imaging of the retina. | 05-29-2014 |
20140204340 | APPARATUS FOR IMAGING AN EYE - A slit lamp mounted eye imaging a slit lamp integrated, a handheld, OCT integrated, or attached to a separate chinrest-joystick assembly apparatus for producing a wide field and/or magnified views of the posterior or the anterior segments of an eye through an undilated or dilated pupil. The apparatus images sections and focal planes and utilizes an illumination system that uses one or more LEDs, shifting optical elements, flipping masks, and/or aperture stops where the light can be delivered into the optical system on optical axis or off axis from center of optical system and return imaging path from the eye, creating artifacts in different locations on the eye image. Image processing is employed to detect and eliminate artifacts and masks from images. The apparatus can be used in combination with an OCT, microscope and can be disposed in a hand-held housing for hand-held use. | 07-24-2014 |
20140218687 | APPARATUS AND METHOD FOR IMAGING AN EYE - A slit lamp mounted eye imaging, a slit lamp integrated, a handheld, OCT integrated, or attached to a separate chinrest-joystick assembly apparatus and method for producing a wide field and/or magnified views of the posterior or the anterior segments of an eye through an undilated or dilated pupil is disclosed. The apparatus images sections and focal planes and utilizes an illumination system that uses one or more LEDs, shifting optical elements, flipping masks, and/or aperture stops where the light can be delivered into the optical system on optical axis or off axis from center of optical system and return imaging path from the eye, creating artifacts in different locations on the eye image. Image processing is employed to detect and eliminate artifacts and masks from images. The apparatus can be used in combination with an OCT, microscope and can be disposed in a hand-held housing for hand-held use. | 08-07-2014 |
20140240673 | IMAGE PROCESSING APPARATUS, OPHTHALMOLOGIC IMAGING APPARATUS, OPHTHALMOLOGIC IMAGING SYSTEM, OPHTHALMOLOGIC IMAGING METHOD, AND NON-TRANSITORY TANGIBLE MEDIUM HAVING PROGRAM STORED THEREON - Provided is an ophthalmologic imaging apparatus for analyzing a fundus image of an eye to be inspected, including: an acquiring unit for acquiring a plurality of autofluorescence images obtained by imaging the eye to be inspected at different times; a generation unit for generating a plurality of fluorescence brightness images obtained by adjusting brightness of the plurality of autofluorescence images; and a display control unit for controlling a display unit to display the plurality of autofluorescence images and the plurality of fluorescence brightness images side by side for each time when the eye to be inspected is imaged. | 08-28-2014 |
20140268052 | METHOD FOR DETECTING AMYLOID BETA PLAQUES AND DRUSEN - A method for detecting amyloid beta plaques and drusen is disclosed. The method for detecting amyloid beta plaques and drusen may include applying a combination of optical retro mode illumination techniques to acquire a plurality of amyloid beta plaques and drusen images that are too small to be seen with other imaging modalities. The amyloid beta plaques and drusen images may also be detected with a non-transitory computer storage media having instructions stored thereon which, when executed, execute the method for detecting amyloid beta plaques and drusen. The method may track changes in plaque, size, area and density of the amyloid beta plaques and drusen over a predetermined period of time. | 09-18-2014 |
20150103317 | PORTABLE EYE VIEWING DEVICE ENABLED FOR ENHANCED FIELD OF VIEW - An ophthalmoscope includes an illumination assembly having a light source disposed along an illumination axis and an imaging assembly configured for delivering an image to an imaging device. Each of the imaging and illumination assemblies are disposed in an instrument housing, the ophthalmoscope being configured for attachment to an electronic imaging device and in which the imaging assembly produces a field of view of about 40 degrees to permit more comprehensive eye examinations to be reliably conducted. In at least one version, a portable electronic device, such as a smart device, can be coupled to the instrument or configured to wirelessly receive images therefrom. | 04-16-2015 |
20160045110 | OPHTHALMOSCOPIC APPARATUS - Ophthalmoscopic apparatus ( | 02-18-2016 |
20160051140 | APPARATUS FOR OCULAR FUNDUS INSPECTION - Ocular fundus inspection apparatus ( | 02-25-2016 |
20160089026 | REDUCED GLARE SURGICAL MICROSCOPE AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS - Devices, systems, and methods for glare reduction in surgical microscopy are provided. A method of operating a surgical microscope may include: receiving light reflected from the surgical field at an image sensor; processing the received light to generate image data; identifying portions of the image data representative of glare; and controlling an optical element to limit the transmission of light associated with the glare. A surgical microscope may include: an image sensor configured to receive light reflected from the surgical field, a computing device, and an optical element. The computing device may be configured to: identify portions of the light received at the image sensor associated with glare and generate a control signal to limit the transmission of the light associated with the glare. The optical element may be configured to selectively limit the transmission of the light associated with the glare in response to the control signal. | 03-31-2016 |
20160089027 | METHOD FOR PHOTOGRAPHICALLY OBSERVING AND/OR DOCUMENTING THE FUNDUS OF AN EYE, AND FUNDUS CAMERA - The invention relates to a method for photographically observing and/or documenting the fundus of an eye, comprising: producing a lighting beam path by means of a lighting module for lighting at least one partial area of the fundus by using an at least approximately punctiform or at least areally limited lighting source, producing an image plane in the lighting beam path for the creation of photographic recordings, separating the pupil cross-sectional area into a detectable observation region and an undetectable lighting region, producing an image area that contains the image of the fundus on the image plane, dividing the image area in strips in the lighting beam path into a lighted region and unlighted regions, and imaging the third and fourth Purkinje reflection on the image area, wherein at least one Purkinje reflection, the third and/or fourth Purkinje reflection, is located in the unlighted regions of the image area. | 03-31-2016 |
20160128559 | METHODS AND APPARATUS FOR MAKING A DETERMINATION ABOUT AN EYE IN AMBIENT LIGHTING CONDITIONS - Disclosed herein are methods and apparatus for making a determination about an eye in ambient lighting conditions comprising detecting ambient light reflected out of an eye of a subject from a retina of the eye of the subject and making a determination about the eye of the subject based upon the reflected ambient light. | 05-12-2016 |
20160249806 | SELF-ILLUMINATED HANDHELD LENS FOR RETINAL EXAMINATION AND PHOTOGRAPHY AND RELATED METHOD THEREOF | 09-01-2016 |