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| Number | Title | Issue Date |
| 7441898 | Method and apparatus for detecting natural modes of vibration of an eye by laser interferometry, and an application thereof to measuring intraocular pressure The eye is positioned relative to a detection device in such a manner as to co-operate with the device to form a Fabry-Perot cavity having a main optical axis and comprising two opposite reflecting faces on the main optical axis, one of these two faces being constit... | 10/28/2008 |
| 7416304 | Ophthalmic observation apparatus An apparatus for observing an eye of an examinee, comprises: an irradiation optical system for irradiating and two-dimensionally scanning a laser beam onto an observational objective part of the eye; an observation optical system having a photo-receiving element, fo... | 08/26/2008 |
| 7380939 | Method 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... | 06/03/2008 |
| 7309126 | Eye characteristics measuring device A device for measuring eye characteristics, an operation device, and the coordinate origin and the coordinate axes of each eye are sufficiently related with one another. A measuring unit (111) measures eye optical characteristics based on a first light receiv... | 12/18/2007 |
| 7290882 | Hand held device and methods for examining a patient's retina A hand held device for examining a patient's retina. In one example, the device generates visible or non-visible illuminating beams having desired spectral content. The illuminating beams are then polarized to generate polarized light beam(s) that are directed towar... | 11/06/2007 |
| 7287855 | Method and system for removing the effects of corneal birefringence from a polarimetric image of the retina A scanning laser polarimetry (SLP) system that measures retinal nerve fiber layer (RNFL) retardance in a single scan image with improved sensitivity. An external bias retarder in combination with the anterior segment retardance forms a nonzero joint retardance adapt... | 10/30/2007 |
| 7286227 | Method and system for removing the effects of corneal birefringence from a polarimetric image of the retina A scanning laser polarimetry (SLP) system that measures in vivo retinal nerve fiber layer (RNFL) retardance (δN, θN) in a single measurement without a variable corneal compensator (VCC). The diagnostic signal is biased so that the detected RN... | 10/23/2007 |
| 7271479 | Flip chip package including a non-planar heat spreader and method of making the same A flip chip package generally includes a substrate, a flip chip die, and a heat spreader. The flip chip die is coupled to the substrate. The heat spreader is coupled to the flip chip die. The heat spreader can include one or more walls. Generally, the one or more wa... | 09/18/2007 |
| 7118217 | Device and method for optical imaging of retinal function An Optical Imaging Device of Retinal Function has been developed to detect changes in reflectance of near infrared light from the retina of human subjects in response to visual activation of the retina by a pattern stimulus. The measured changes in reflectance corre... | 10/10/2006 |
| 7011411 | Eye's optical characteristic measuring system An eye's optical characteristic measuring system, comprising a target projecting system for projecting a target image to an ocular fundus of an eye under test, a photodetection optical system for guiding the target image to a photoelectric detector, a simulation ima... | 03/14/2006 |
| 6996296 | Polarizing device The present invention provides polarizing devices and illumination devices that include the polarizing devices. The polarizing devices and illumination devices can be advantageously used in a wide variety of applications, such as in liquid crystal displays. Polarizi... | 02/07/2006 |
| 6932475 | Device for measuring aberration refraction of the eye An instrument for measuring aberration refraction of an eye is provided, having: a lens system defining an instrument optical axis and an alignment device for aligning the visual axis of the eye with the instrument optical axis. A light source (1) produces a ... | 08/23/2005 |
| 6914675 | Ellipsometric method and control device for making a thin-layered component A method for controlling the production of an object controlled by a gas panel, by performing an ellipsometric measurement on the object represented by its Mueller matrix; controlling, with a gas panel, the manufacture on the basis of the ellipsometric measurement. ... | 07/05/2005 |
| 6814441 | Apparatus for measurement of polarized distribution, polarizing filter for using therein and polarizing filter assembly Disclosed are an apparatus for measurement of a polarized distribution, a polarizing filter for use of the apparatus and a polarizing filter assembly. The apparatus for measurement of polarized distribution comprises an illuminating optical system for illumin... | 11/09/2004 |
| RE38590 | Operation apparatus for correcting ametropia with laser beam An operation apparatus for ablating the cornea by laser beam and correcting ametropia of the eye comprising a diaphragm with variable aperture, which is disposed on the optical path along which the laser beam is irradiated on the cornea, a shading member for shading... | 09/14/2004 |
| 6704106 | Method and system for canceling system retardance error in an ophthalmological polarimeter A polarimeter system that averages multiple retardance measurement samples to cancel the effects of system birefringence in the diagnostic path. The retardance measurement errors arising from system birefringence have a symmetry that repeats over each com... | 03/09/2004 |
| 6565210 | Ocular optical characteristic measuring apparatus An ocular optical characteristic measuring apparatus measures light intensity distribution in a target image projected on the fundus of an eye and determines the ocular optical characteristic of the eye on the basis of the light intensity distribution. A ... | 05/20/2003 |
| 6540357 | Glaucoma diagnosis apparatus A glaucoma diagnosis apparatus for determining thickness of nerve fiber layers. The apparatus includes an illuminating optical system for illuminating the ocular fundus of an eye to be examined with circularly polarized illuminating light and an imaging o... | 04/01/2003 |
| 6527390 | Eye viewing device for large field viewing The invention is a low cost, low input power eye viewing device well suited for viewing wide field retinal images through an undilated pupil. Included in the device are a converging light illumination system and an aperture stop. The converging light illu... | 03/04/2003 |
| 6394603 | Ophthalmic apparatus An ophthalmic apparatus for observing an eye to be examined is disclosed. This apparatus includes an observation optical system including an objective lens, for observing the eye through the objective lens; an illumination optical system including an illu... | 05/28/2002 |
| 6112114 | Eye examination apparatus employing polarized light probe Apparatus is provided for determining the topography, thickness, and fiber orientation of the nerve fiber layer at the fundus of the eye by measuring the polarization shift induced in a return beam of polarized light which is reflected at the ocular fundu... | 08/29/2000 |
| 5875019 | System for the determination, the evaluation and the control of the refractive and accommodative status of the eye The system for the determination, the evaluation and the control of the refractive and accommodative status of the eye according to the present invention includes: a scanner (AN) to be placed before the eye optically corrected or not, and completely or pa... | 02/23/1999 |
| 5861939 | Portable fundus viewing system for an undilated eye The system of the present invention allows the fundus of an undilated eye to be viewed extremely easily and without the need for the viewer to align a hand held unit with a head mounted unit. The system for viewing the fundus of an undilated eye in accord... | 01/19/1999 |
| 5861938 | Portable scanning laser ophthalmoscope A portable scanning laser ophthalmoscope with a wide field of view permits a clinician to directly view the interior of the patient's eye without the use of an external monitor or display. The portable scanning laser ophthalmoscope includes a housing that... | 01/19/1999 |
| 5822035 | Ellipsometer A system and method for the in-vivo measurement of optical characteristics of a cornea includes an ellipsometer which measures the phase shift in reflected light after it has passed through the cornea or been reflected from the retina. This ellipsometer h... | 10/13/1998 |
| 5787890 | Eye examination apparatus employing polarized light probe Apparatus is provided for determining the topography, thickness, and fiber orientation of the nerve fiber layer at the fundus of the eye by measuring the polarization shift induced in a return beam of polarized light which is reflected at the ocular fundu... | 08/04/1998 |
| 5784148 | Wide field of view scanning laser ophthalmoscope A scanning laser ophthalmoscope with a wide field of view provides a color image of an interior portion of a patient's eye at varying depths while the patient is simultaneously presented with a fixation target designed to probe his visual function. The sc... | 07/21/1998 |
| 5726735 | Measurement device with polarizing filter for noise elimination An ophthalmic measuring apparatus for eliminating the noise ingredient of the light without eliminating the scattered light by molecules in crystalline lens of the examiner, to achieve stable results of measurements, the ophthalmic measuring apparatus pro... | 03/10/1998 |
| 5719659 | Ophthalmic apparatus having light polarizing means An ophthalmic apparatus for diagnosing the condition of an eye based on an examination of images of interference fringes formed by a lacrimal layer on the anterior portion of the eye. The apparatus has an illumination system that projects a beam of light ... | 02/17/1998 |
| 5673097 | Portable scanning laser ophthalmoscope A portable scanning laser ophthalmoscope with a wide field of view permits a clinician to directly view the interior of the patient's eye without the use of an external monitor or display. The portable scanning laser ophthalmoscope includes a housing that... | 09/30/1997 |
| 5640220 | Apparatus and method for determining characteristics of a human retina using entoptically observed leukocytes and other psychophysical phenomenona An apparatus and method for comparing entoptically observed corpuscles with computer simulated images of corpuscle-like particles without requiring the observer to view more than one screen. Also disclosed are an apparatus and method for determining and d... | 06/17/1997 |
| 5543865 | Fundus camera with partially common coaxial observation and photographing optical systems A fundus camera, which has an illumination optical system for illuminating a fundus of an examinee's eye, an observation optical system for observing the fundus and a photographing optical system for photographing an image of the fundus, the photographing... | 08/06/1996 |
| 5485229 | Method and apparatus for determining electrical activity in the retinal nerve fiber layer using intrinsic birefringent properties of retinal ganglion cell axons Apparatus and method for measuring retinal function in discrete regions of a retina includes selecting a discrete region of a retina having ganglion cell axons extending therefrom and to an optic nerve head and directing a linearly polarized beam of light... | 01/16/1996 |
| 5394199 | Methods and apparatus for improved visualization of choroidal blood flow and aberrant vascular structures in the eye using fluorescent dye angiography A method for visualizing the choriocapillaris of the eye in a sequence of ICG angiographic images comprising subtracting each image in the angiographic sequence from a succeeding image. In practice, a modified fundus camera is used to provide digitized im... | 02/28/1995 |
| 5355186 | Ophthalmic measurement apparatus An ophthalmic measurement apparatus comprises a laser beam projection section for projecting into an eye a linearly polarized laser light beam emitted by a laser source, and a light receiving section provided with a photosensor for detecting laser light s... | 10/11/1994 |
| 5349399 | Intraocular length measuring instrument having phase compensating means To obviate the influence of, for example, birefringence of an eyeball, an intraocular length measuring instrument includes a light source portion for emitting a measuring beam of linearly polarized light; a beam splitter for separating a beam of light ref... | 09/20/1994 |
| 5337106 | Liquid-crystal image director for single-lens-reflex camera The mirror in a single-lens-reflex (SLR) camera is eliminated by employing a liquid crystal cell and a polarizing beam splitter. The light from an illuminating lamp (32) is linearly polarized in a horizontal direction by a polarizer (58). The polarized il... | 08/09/1994 |
| 5321446 | Slit lamp microscope and selectively insertable diaphragm disk In a slit lamp microscope, changeover can be selectively made between conventional slit lamp microscopy and confocal perforated disk microscopy. In slit lamp operation, the microscope is constructed as a stereo microscope. The Nipkow perforated disk requi... | 06/14/1994 |
| 5200772 | Filter apparatus for retinoscope A retinoscope is provided with a hinged light filter carrier assembly for slidably positioning first and second polarizing filters in the light transmission and viewing passageways. A single actuating lever is provided to move the light filter members int... | 04/06/1993 |
| 4403841 | Apparatus for examining anterior portions of the eye The invention provides an ophthalmological technique and instrumentation for making better and more facile examinations of the anterior portion of an eye, by employing a known interference-contrast technique in on-axis combination with an illumination-sou... | 09/13/1983 |
