Optometric apparatus

Details Optometric apparatus Optometric apparatus

2005-08-02

2005-08-02

Casler, Brian L. (Department: 3737)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

Reexamination Certificate

active

06923541

ABSTRACT:
An optometric apparatus for a subjective examination of a visual function of an examinee's eye includes a pair of right-and-left lens chamber units, each having test windows; and rotary disks disposed in each unit, each disk holding therein optical elements, one of the optical elements in each disk being placed between the test windows; and the optical elements include optical elements of 29 mm to 39 mm in effective diameter.

REFERENCES:
patent: 4798457 (1989-01-01), Morohashi et al.
patent: 5648833 (1997-07-01), Doms et al.
patent: 5812241 (1998-09-01), Doms et al.
patent: 2 478 459 (1981-09-01), None
patent: A 9-149886 (1997-06-01), None
patent: A 11-267100 (1999-10-01), None

Affiliated with

Also associated with

Rating

Optometric apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optometric apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optometric apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3491995