Eye examining instrument

Details Eye examining instrument Eye examining instrument

1984-07-20

1985-08-06

Rosenberger, R. A.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351211, 351237, 350276SL, A61B 314, A61B 310

Patent

active

045332223

ABSTRACT:
An eye examining instrument comprises examining means disposed to project an examining light to and receive the light from the eye of a person to be examined; a casing for encasing said examining means; a beam splitter disposed on the outside of said casing for directing the examining light to the eye to be examined, said beam splitter having sufficient width to allow both eyes of the person to be examined to see a fixation object and being directly opposed to the eye to be examined; and a cover connected with said casing for preventing any undesirable light from coming into said beam splitter.

REFERENCES:
patent: 1879216 (1932-09-01), Hannan et al.
patent: 2081969 (1937-06-01), Allen et al.
patent: 2619872 (1952-12-01), Shepard
patent: 2649839 (1953-08-01), Condon
patent: 2711667 (1955-06-01), Simjian
patent: 3586424 (1972-06-01), Schenk
patent: 4293198 (1981-10-01), Kohayakawa et al.
patent: 4372655 (1983-02-01), Matsumura et al.
Cooper et al., Nikon F, Nikkormat Handbook of Photography, American Photographic Book Publishing Co., Inc. New York, .COPYRGT. 1968 pp. (2-1)-(2-6), (12-11)-(12-12).

Affiliated with

Also associated with

Rating

Eye examining instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-509559