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Class Information
Number: 351/217
Name: Optics: eye examining, vision testing and correcting > Eye examining or testing instrument > Objective type > Including lens selectively insertable in optical path > On rotary disc
Description: Subject matter wherein multiple test lenses are eccentrically mounted on either a single rotary disc or a pair of rotary discs.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7264354 |
Method and apparatus for correcting vision using an electro-active phoropter |
Sep. 4, 2007 |
| 7241013 |
Optometric apparatus |
Jul. 10, 2007 |
| 7198367 |
Fundus imaging apparatus and fundus imaging method |
Apr. 3, 2007 |
| 7144112 |
Optometric apparatus |
Dec. 5, 2006 |
| 5812241 |
Compact refractor for subjective examination of human eyes |
Sep. 22, 1998 |
| 5671039 |
Glare tester |
Sep. 23, 1997 |
| 5650839 |
Retinoscope assembly with scale |
Jul. 22, 1997 |
| 5619290 |
Phase-contrast haploscope and rotary disc for use therewith |
Apr. 8, 1997 |
| 5479221 |
Hand-held line grid interference retinometer |
Dec. 26, 1995 |
| 5424789 |
Optical device for use with a slit lamp biomicroscope |
Jun. 13, 1995 |
| 5300965 |
Corneal shape measuring apparatus |
Apr. 5, 1994 |
| 5223864 |
Phoropter |
Jun. 29, 1993 |
| 4673265 |
Procedure and device for automatic refractometric measurement of the degree of ametropia of a human eye |
Jun. 16, 1987 |
| 4580559 |
Indirect ophthalmoscopic photocoagulation delivery system for retinal surgery |
Apr. 8, 1986 |
| 4385813 |
Phoropter |
May. 31, 1983 |
| 4196980 |
Opthalmoscope examination pattern having light transmissive fixation point |
Apr. 8, 1980 |
| 4125320 |
Retinometer |
Nov. 14, 1978 |
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