Viewfinder system and optical apparatus

Details Viewfinder system and optical apparatus Viewfinder system and optical apparatus

1997-07-24

1998-10-13

Perkey, W. B.

Photography

Having camera indicator

Having display in viewfinder

396373, 396378, G03B 1720

Patent

active

058226303

ABSTRACT:
A viewfinder system includes an optical system for guiding, to an observer, light coming from an object, a liquid crystal display of transmission type provided in an optical path of the optical system, the liquid crystal display having transmittances which differ with wavelengths, and a transmittance uniforming coating provided in the optical path of the optical system, the transmittance uniforming coating making, substantially uniform irrespective of wavelengths, transmittances of light which has passed through the optical system and the liquid crystal display.

REFERENCES:
patent: 5708882 (1998-01-01), Yokonuma et al.

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