Optical apparatus

Details Optical apparatus Optical apparatus

1979-11-26

1982-03-30

Corbin, John K.

350144, 350444, G02B 1700

Patent

active

043221351

ABSTRACT:
Optical apparatus for biocular viewing which is small and of light weight comprises a solid optical element having a face which internally reflects light from an image surface to internally concave reflecting areas which reflect the light back to the face to emerge as two beams travelling towards respective eye positions via a corrector lens. The apparatus can be used in night vision goggles having a single image intensifier tube providing the image surface.

REFERENCES:
patent: 2683394 (1954-07-01), Polanyi et al.
patent: 3658412 (1972-04-01), Seaman
patent: 4132889 (1979-01-01), Groeneweg

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