Finder display apparatus

Details Finder display apparatus Finder display apparatus

1994-11-09

1996-02-06

Perkey, W. B.

G03B 1720

Patent

active

054899656

ABSTRACT:
A finder display apparatus provides a display of information associated with the photographing within a finder field. The finder display apparatus has a reflecting surface, a polarizing plate and an electro-optical display device constituted by a twisted nematic liquid crystal arranged between the reflecting surface and the polarizing plate. The reflecting plate is provided to a Porro prism and has a polarization characteristic different by 90.degree. from the polarization characteristic of the polarizing plate.

REFERENCES:
patent: 4140378 (1979-02-01), Suzuki et al.
patent: 4509848 (1985-04-01), Katsuma et al.
patent: 4750014 (1988-06-01), Frank

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