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Class Information
Number: 351/239
Name: Optics: eye examining, vision testing and correcting > Eye examining or testing instrument > Subjective type > Including test chart or target
Description: Subject matter including charts with movable or stationary patterns or targets for either direct reading, or in relation with an optical instrument for testing or otherwise determining visual acuity or errors of refraction of the eye.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7568801 |
Optotype presenting apparatus |
Aug. 4, 2009 |
| 7540615 |
Cognitive training using guided eye movements |
Jun. 2, 2009 |
| 7537343 |
Optotype presenting apparatus |
May. 26, 2009 |
| 7470026 |
Method and apparatus for measuring operating visual acuity |
Dec. 30, 2008 |
| 7441900 |
Contrast chart device, contrast sensitivity measuring device and contrast sensitivity measuring method |
Oct. 28, 2008 |
| 7438417 |
Ophthalmic diagnostic apparatus for different types of tests |
Oct. 21, 2008 |
| 7429109 |
Optometric apparatus and lens power determination method |
Sep. 30, 2008 |
| 7427137 |
Visual acuity testing |
Sep. 23, 2008 |
| 7419263 |
Device and method for assisting development of an infant's visual acuity and for transferring a mother's scent to an infantile environment |
Sep. 2, 2008 |
| 7407290 |
Method of inspecting monocular diplopia and eye mark pattern for use in the same |
Aug. 5, 2008 |
| 7393104 |
Ophthalmic testing unit and ophthalmic testing equipment |
Jul. 1, 2008 |
| 7390090 |
Ocular measurement apparatus and method |
Jun. 24, 2008 |
| 7390091 |
Vision testing apparatus |
Jun. 24, 2008 |
| 7387387 |
Correction of presbyopia using adaptive optics and associated methods |
Jun. 17, 2008 |
| 7367675 |
Vision testing system |
May. 6, 2008 |
| 7357508 |
Eye test chart apparatus |
Apr. 15, 2008 |
| 7354156 |
Naturoptic method for restoring healthy vision |
Apr. 8, 2008 |
| 7354155 |
Astigmatic axis independent spatial frequency and contrast sensitivity target and method |
Apr. 8, 2008 |
| 7350921 |
iQueVision: animated / vision testing system |
Apr. 1, 2008 |
| 7344249 |
Ophthalmic apparatus |
Mar. 18, 2008 |
| 7338171 |
Method and apparatus for visual drive control |
Mar. 4, 2008 |
| 7296895 |
Sequential scanning wavefront measurement and retinal topography |
Nov. 20, 2007 |
| 7287857 |
Method and apparatus for performing vision screening |
Oct. 30, 2007 |
| 7267439 |
Optometric apparatus, optometric method, and optometric server |
Sep. 11, 2007 |
| 7267437 |
Biomimicking applications of human sensory systems |
Sep. 11, 2007 |
| 7264356 |
Techniques for diagnosing and aiding color vision |
Sep. 4, 2007 |
| 7252382 |
Apparatus and method for measuring differences in the transmission of light through a lens of an eye |
Aug. 7, 2007 |
| 7249851 |
Eye characteristic measuring apparatus |
Jul. 31, 2007 |
| 7237897 |
Optometric apparatus |
Jul. 3, 2007 |
| 7220000 |
Methods, devices and systems for assessing eye disease |
May. 22, 2007 |
| 7198368 |
Optometric apparatus |
Apr. 3, 2007 |
| 7198369 |
Method and device for detecting/correcting color vision and their application |
Apr. 3, 2007 |
| 7195355 |
Isolating and quantifying functional impairments of the gaze stabilization system |
Mar. 27, 2007 |
| 6985524 |
Apparatus and method for adjusting real time video to compensate for color blindness |
Jan. 10, 2006 |
| 6899428 |
Contrast sensitivity measuring device and contrast sensitivity measuring method |
May. 31, 2005 |
| 6817715 |
Method and a device for measuring reading ability and/or visual acuity |
Nov. 16, 2004 |
| 6808267 |
Method for automated mass screening for visual dysfunction in children |
Oct. 26, 2004 |
| 6769770 |
Computer-based 3D visual field testing with peripheral fixation points |
Aug. 3, 2004 |
| 6688746 |
Field testing using spread spectrum technique |
Feb. 10, 2004 |
| 6652101 |
Method and apparatus for performing vision screening |
Nov. 25, 2003 |
| 6644811 |
Oculomotor balance tester |
Nov. 11, 2003 |
| 6626536 |
Device and method for assisting development of an infant's visual acuity and for transferring a mother's scent to an infantile environment |
Sep. 30, 2003 |
| 6623119 |
System and method for modifying image-processing software in response to visual test results |
Sep. 23, 2003 |
| 6592223 |
System and method for optimal viewing of computer monitors to minimize eyestrain |
Jul. 15, 2003 |
| 6585376 |
Test charts for metamorphopsia |
Jul. 1, 2003 |
| 6578966 |
Computer-based 3D visual field test system and analysis |
Jun. 17, 2003 |
| 6505937 |
Test slide for a vision testing apparatus |
Jan. 14, 2003 |
| 6494579 |
Eye self-test device |
Dec. 17, 2002 |
| 6425665 |
Visual acuity examination apparatus |
Jul. 30, 2002 |
| 6422700 |
Visual acuity chart displaying apparatus |
Jul. 23, 2002 |
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