Viewfinder optical system and optical apparatus having the same

Details Viewfinder optical system and optical apparatus having the same Viewfinder optical system and optical apparatus having the same

1999-08-03

2000-12-26

Epps, Georgia

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359627, 359631, 359643, 396386, G02B 2714, G02B 2710, G02B 2500, G03B 1308

Patent

active

061668591

ABSTRACT:
A viewfinder optical system for conducting light from an object to an observer includes a plurality of reflecting surfaces having optical powers. Optical paths of each ray of a light flux reflected successively by the plurality of reflecting surfaces intersect each other at least twice, and the light from the object forms an image at least twice when passing through the viewfinder optical system.

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patent: 5999311 (1999-12-01), Nanba et al.
patent: 9008948 (1999-12-01), Togino

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