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Class Information
Number: 351/215
Name: Optics: eye examining, vision testing and correcting > Eye examining or testing instrument > Objective type > Including light polarizing means
Description: Subject matter including a light polarizer wherein the light which is directed into or emerges from the eye of a patient is polarized to avoid reflexes and to obtain the greatest possible intensity of illumination and image-clarity.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8678592 Method and apparatus for detecting fixation of at least one eye of a subject on a target Mar. 25, 2014
8597283 Ophthalmologic laser system and operating method Dec. 3, 2013
8534838 Optical coherence reflectometry with depth resolution Sep. 17, 2013
8328357 Viewing device to minimize parallax Dec. 11, 2012
8282211 Method and apparatus for improved fundus imaging through choice of light polarisation Oct. 9, 2012
8262224 Binocular indirect ophthalmoscope Sep. 11, 2012
7967440 System and method for characterizing corneal surfaces Jun. 28, 2011
7950801 Device and method for measuring the contrast of the fringes in a michelson interferometer and system for examination of the eye comprising such a device May. 31, 2011
7896498 Apparatus and method for optical measurements Mar. 1, 2011
7845798 Ophthalmic surgical system Dec. 7, 2010
7819526 Fundus camera Oct. 26, 2010
7635186 Ophthalmologic measuring apparatus Dec. 22, 2009
7500754 Ophthalmologic imaging apparatus Mar. 10, 2009
7484849 Ophthalmologic observation apparatus Feb. 3, 2009
7441898 Method and apparatus for detecting natural modes of vibration of an eye by laser interferometry, and an application thereof to measuring intraocular pressure Oct. 28, 2008
7416304 Ophthalmic observation apparatus Aug. 26, 2008
7380939 Method and arrangement for the measurement of the anterior segment of the eye Jun. 3, 2008
7290882 Hand held device and methods for examining a patient's retina Nov. 6, 2007
7286227 Method and system for removing the effects of corneal birefringence from a polarimetric image of the retina Oct. 23, 2007
7278740 Ophthalmic apparatus Oct. 9, 2007
7011411 Eye's optical characteristic measuring system Mar. 14, 2006
6932475 Device for measuring aberration refraction of the eye Aug. 23, 2005
6814441 Apparatus for measurement of polarized distribution, polarizing filter for using therein and polarizing filter assembly Nov. 9, 2004
RE38590 Operation apparatus for correcting ametropia with laser beam Sep. 14, 2004
6704106 Method and system for canceling system retardance error in an ophthalmological polarimeter Mar. 9, 2004
6565210 Ocular optical characteristic measuring apparatus May. 20, 2003
6540357 Glaucoma diagnosis apparatus Apr. 1, 2003
6527390 Eye viewing device for large field viewing Mar. 4, 2003
6394603 Ophthalmic apparatus May. 28, 2002
6112114 Eye examination apparatus employing polarized light probe Aug. 29, 2000
5875019 System for the determination, the evaluation and the control of the refractive and accommodative status of the eye Feb. 23, 1999
5861938 Portable scanning laser ophthalmoscope Jan. 19, 1999
5861939 Portable fundus viewing system for an undilated eye Jan. 19, 1999
5822035 Ellipsometer Oct. 13, 1998
5787890 Eye examination apparatus employing polarized light probe Aug. 4, 1998
5784148 Wide field of view scanning laser ophthalmoscope Jul. 21, 1998
5726735 Measurement device with polarizing filter for noise elimination Mar. 10, 1998
5719659 Ophthalmic apparatus having light polarizing means Feb. 17, 1998
5673097 Portable scanning laser ophthalmoscope Sep. 30, 1997
5640220 Apparatus and method for determining characteristics of a human retina using entoptically observed leukocytes and other psychophysical phenomenona Jun. 17, 1997
5543865 Fundus camera with partially common coaxial observation and photographing optical systems Aug. 6, 1996
5485229 Method and apparatus for determining electrical activity in the retinal nerve fiber layer using intrinsic birefringent properties of retinal ganglion cell axons Jan. 16, 1996
5394199 Methods and apparatus for improved visualization of choroidal blood flow and aberrant vascular structures in the eye using fluorescent dye angiography Feb. 28, 1995
5355186 Ophthalmic measurement apparatus Oct. 11, 1994
5349399 Intraocular length measuring instrument having phase compensating means Sep. 20, 1994
5337106 Liquid-crystal image director for single-lens-reflex camera Aug. 9, 1994
5321446 Slit lamp microscope and selectively insertable diaphragm disk Jun. 14, 1994
5309185 Apparatus and method for objective quantitative assessment of human ocular coordination May. 3, 1994
5200772 Filter apparatus for retinoscope Apr. 6, 1993
4403841 Apparatus for examining anterior portions of the eye Sep. 13, 1983

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