Device for determining the portion of a field seen by the eye of

Details Device for determining the portion of a field seen by the eye of Device for determining the portion of a field seen by the eye of

1992-11-30

1994-05-10

Ben, Loha

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351211, 351205, 351206, 351201, 351209, G02C 514

Patent

active

053112253

ABSTRACT:
Device intended to determine the portion of a field seen by the eye (5) of an observer.
According to the invention, this device includes:

REFERENCES:
patent: 4852988 (1989-08-01), Velez et al.
patent: 5152295 (1992-10-01), Kobayashi
Patent Abstracts of Japan, vol. 15, No. 305, Aug. 5, 1991.

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