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| Number | Title | Issue Date |
| 8042945 | Multifocal intraocular lens simulator and method of simulating multifocal intraocular lens A multifocal intraocular lens simulator includes an optical system enabling an object to be observed therethrough, and a test lens holder which holds a prescribed test intraocular lens. The intraocular lens holder is installed at a position optically conjugate with ... | 10/25/2011 |
| 7914148 | Ophthalmic lens simulation system and method A method of simulating an optical effect, and/or characteristic of a selected ophthalmic lens design for a wearer is disclosed. In an embodiment, the method includes retrieving simulation data for the selected ophthalmic lens design and processing the simulation dat... | 03/29/2011 |
| 7533993 | Method and apparatus for correcting vision using an electro-active phoropter An electro-active phoropter and a method of using the electro-active phoropter to measure a patient's vision prescription is disclosed. The electro-active phoropter includes a series of individually addressable electro-active lenses. The lenses have either a positiv... | 05/19/2009 |
| 7441896 | Macular pigment measurements Apparatus for use in measuring the density and spatial distribution of macular pigment in an eye comprises a camera (4) for capturing a color image of an eye, at least one filter (36) for filtering light reaching the camera (preferably by filtering the... | 10/28/2008 |
| 7438416 | Optometric apparatus An optometric apparatus for examining refractive power of an examinee's eye subjectively, capable of performing highly-precise examination. The apparatus has a test window through which a presented optotype is seen, a first spherical-power applying unit which applie... | 10/21/2008 |
| 7413306 | Sphero cylindrical eye refraction system using fluid focus electrostatically variable lenses Optical devices, systems, and methods can produce and/or measure cylindrical (as well as spherical) lens shapes throughout a range of both powers and cylindrical axes. Fluid focus lenses employ electrical potentials to vary the shape of a fluid/fluid interface betwe... | 08/19/2008 |
| 7290877 | Multi-lens vision correction method and its apparatus The present invention discloses a multi-lens vision correction method and its apparatus that use two lenses to form a lens module as a basic structure, and a lens closer to an eye is a concave lens preferably disposed close to the eye as much as possible for correct... | 11/06/2007 |
| 7264354 | Method and apparatus for correcting vision using an electro-active phoropter An electro-active phoropter and a method of using the electro-active phoropter to measure a patient's vision prescription is disclosed. The electro-active phoropter includes a series of individually addressable electro-active lenses. The lenses have either a positiv... | 09/04/2007 |
| 7258438 | Retinal flux density meter and method of use A system for approximating flux density of light on a human retina. A housing has an opening allowing light to pass to inside the housing. A baffle coupled to the housing replicates a facial cutoff function response for the light inside the housing. Two detectors ar... | 08/21/2007 |
| 7229406 | Device for positioning at least one optical component inside an endoscopic system A device for positioning at least one optical component inside an endoscopic system has a housing through which an optical axis of the endoscopic system extends and in which the at least one optical component is arranged. The at least one optical component can be pi... | 06/12/2007 |
| 7144112 | Optometric apparatus An optometric apparatus (2) includes a rotary prism (136a, 136b) disposed in front of the eye (E), for adding a prism degree to the eye (E); a rotation device including a pulse motor (181, 184) and a rotation transmitting me... | 12/05/2006 |
| 7104800 | Article and method for selection of individualized personal care products A diagnostic article and method is disclosed wherein the article includes a mirror, a plurality of attribute selection sites arranged along or associated with the mirror with each of the sites having a plurality of choice selectors, and an output for recommending at... | 09/12/2006 |
| 6939007 | Photochromic bis-naphthopyran compounds and methods for their manufacture The invention provides photochromic bis-naphthopyran compounds as well as methods for their manufacture and their use. The bis-naphthopyran compounds of the invention exhibit a wide range of color, i.e., from pink to purple to blue gray, upon activation by a source ... | 09/06/2005 |
| 6749303 | Optometry apparatus and diffraction grating plate used in the same An optometry apparatus of the present invention comprises an optical element 26 provided in a correction optical system 1, which has a spherical lens 24 and a cylindrical lens 25 and which corrects examined eyes E to be subjected to optom... | 06/15/2004 |
| 6733128 | Microscope for noncontact wide-angle viewing Microscopes with a noncontact wide-angle viewing scope are used during surgeries on the eye, wherein an electromotively adjustable optic is provided between the lens and the eye. In order to prevent the surgeon from interrupting the surgery in order to refocus and t... | 05/11/2004 |
| 6698888 | Ophthalmic refractor having improved repeatability of scale rotation A subjective ophthalmic refractor of a type comprising a ring-shaped cylinder power scale having an internal gear actuated by a scale drive gear connected to a cylinder power adjustment knob of the refractor is improved by providing a bearing insert withi... | 03/02/2004 |
| 6666555 | Ophthalmic refractor having retrofittable readout illumination A subjective ophthalmic refractor is improved for operator visibility in a darkened examination room by forming a cylinder axis scale of the refractor as a light-transmitting component having opaque scale gradations and installing a polar array of illumin... | 12/23/2003 |
| 6471354 | Apparatus for creating visual power of a blind person Disclosed is an apparatus for creating visual power of a blind person, who has lost a visual ability due to various reasons, thereby recovering the visual ability of the blind person. The visual power creating apparatus includes a CCD camera for picking u... | 10/29/2002 |
| 6270219 | Plastic trial lens, its injection molded article and its molding apparatus A plastic trial lens having a grip portion gripped when the lens is set in trial frames for trial lenses, an injection molded product for making the trial lenses, and a mold assembly for molding the injection molded product are provided. In the injection ... | 08/07/2001 |
| 6149275 | Apparatus for selection of an optical lens An optical lens selection apparatus by which an individual who engages in an activity such as welding, machining, wood working or the like, and who wishes to obtain enhanced viewing of a work piece may readily choose an appropriate lens for use with a pro... | 11/21/2000 |
| 5648833 | Motorized instrument for the examination of human eyes A phoropter comprises two observation channels, in each of said observation channels a plurality of disk-shaped mounts, rotatably seated about at least one axis, for mounting optically effective members and drive means for rotating said mounts. The drive ... | 07/15/1997 |
| 5617157 | Computer controlled subjective refractor A computer controlled subjective refractor includes a microcomputer based remote hand control connected to an enclosure which houses the optical elements of the refractor and which controls their operation for the examination of a patient. The enclosure h... | 04/01/1997 |
| 5596378 | Lens selection system An eyeglass lens selection system for untrained persons includes a carrier that is slidably mounted in a viewer module. An eye chart faces the viewer module and an elongated arm connects the chart to the viewer module and lens carrier. The carrier is an e... | 01/21/1997 |
| 5585874 | Color imaging convergence projector Color imaging projection apparatus for projecting a pair of laterally spaced, collimated, colored light beams onto the iris portion of an individual's eyes while viewing him/herself in a two-way mirror. A housing is provided wherein is located a light sou... | 12/17/1996 |
| 5302982 | Projector slide apparatus A projector slide apparatus for use in a duplex optical chart projector of the type used by optometrists and eye care professionals. The apparatus is insertable into and capable of variable movement within the optical chart projector towards combined simu... | 04/12/1994 |
| 5287129 | Fundus camera This invention concerns a fundus camera which can take photographs other than by fluorescence or by fluorescence. An optical device is withdrawn from the optical path of a photographic system at the same time as a barrier filter for taking photographs by ... | 02/15/1994 |
| 5285224 | Methods and apparatus for determining refractive error Methods and apparatus for measuring or determining refractive errors are disclosed. In some embodiments the invention includes two bars, each containing multiple lenses positioned longitudinally along the bar, and a collar adapted to constrain relative mo... | 02/08/1994 |
| 5237350 | Ophthalmic photographic apparatus using a fluorescent agent The ophthalmic photographic apparatus of the invention comprises a means of detecting abnormalities in the filters used when a fluorescent agent is caused to fluoresce by infra-red light in order to photograph a subject's eye. According to the ophthalmic ... | 08/17/1993 |
| 5223864 | Phoropter The phoropter is provided with a rotating knob means for selecting specific types of functions (12,13,14), the angular position being picked up by means of a pulse generator, e.g. a light barrier (8,9) in the form of an electric signal (amplifier 10) and,... | 06/29/1993 |
| 5067806 | Quick screening for scotopic sensitivity syndrome A device permitting the rapid determination of scotopic sensitivity syndrome comprised of small cards with colored filters on visual test patterns. The filter's frequencies correspond to the receptor frequencies of the cones in the retina and their combin... | 11/26/1991 |
| 4988185 | High add bifocal spectacles and methods of prescribing A method for prescribing bifocal spectacles for a person having reduced visual acuity includes placing a trial frame on the face of said person in front of his eyes and measuring a far interpupillary distance when said person is viewing a distant object, ... | 01/29/1991 |
| 4887897 | Eye examining apparatus An eye examining apparatus has an eye examining lens of an elastic material opposed to an eye to be examined, and control means for causing the marginal portion of the eye examining lens to protrude or sink to thereby change the lens surface of the eye ex... | 12/19/1989 |
| 4844607 | Vision tester with color corrected illuminating system A color-corrected vision testing apparatus and method are provided, such having a blue filtered incandescent illuminating source in a light-occluding housing for high contrast translumination of test patterns also in said housing to obtain improved testin... | 07/04/1989 |
| 4564274 | Visibility gauge A visibility gauge in the form of a disc or strip of diffusing material arranged to be interposed in the light path from a subject to an observer. The diffusiveness of the strip varies along its length so that the contrast between the subject and its back... | 01/14/1986 |
| 4407571 | Compact refraction instrument A compact refraction instrument for use in both the objective and subjective examination of human eyes. The instrument incorporates an alignment mode, a retinoscopy mode, a distance mode and near mode. For carrying out the functions associated with these ... | 10/04/1983 |
| 4368958 | Arrangement for determining the points of penetration of eyeglass areas by visual axes An arrangement for determining the location relative to eyeglass frames of points at which visual axes penetrate through eyeglass areas of eyeglasses includes a sighting object having two concentric target zones one of which emits polarized light. A suppo... | 01/18/1983 |
| 4243304 | Convergence mechanism for binocular refracting instrument A mechanism which has a continuously variable amount of convergence and inward movement over the entire range of pupillary distance (PD) settings is disclosed. The repositioning of a pair of straight tracks transfers a continuously variable amount of moti... | 01/06/1981 |
| 4190331 | Ophthalmic measuring instrument with angle measuring means An ophthalmic measuring instrument has an instrument frame with suitable clips for mounting the instrument frame to an eyeglass frame on the patient so that spaced eye viewing openings on the instrument frame of the ophthalmic measuring instrument are dis... | 02/26/1980 |
| 4145123 | Perimeter A perimeter for perimetric eye testing is provided with an electronic control mechanism for varying the brightness of the light signals in a preselected manner such that reproducibility of the examination can be achieved. An optical indicating arrangement... | 03/20/1979 |
| 4105303 | Method for determining the refractive correction for an eye An improved method is disclosed for determining the refractive correction for an eye. The method is an improvement over the method described by W. E. Humphrey in his U.S. Pat. No. 3,947,097. The improved method uses apparatus having only one variable asti... | 08/08/1978 |
