Night vision system and method

Details Night vision system and method Night vision system and method

1985-12-23

1988-11-29

Jordan, Charles T.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351246, A61B 310

Patent

active

047877359

ABSTRACT:
A night vision system in which a lamp radiating toward the pupil of a user has its intensity controlled in response to the sensing of other illumination directed toward the user's pupil, so that pupil size is reduced in the anticipation of an increase in illumination which would otherwise considerably reduce retinal sensitivity.

REFERENCES:
patent: 3112424 (1963-11-01), Suhrmann
patent: 4614411 (1986-09-01), Horenz

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