Camera having simple and inexpensive finder field frame switchin

Details Camera having simple and inexpensive finder field frame switchin Camera having simple and inexpensive finder field frame switchin

1997-01-29

1998-06-23

Adams, Russell E.

Photography

With viewfinder

Selective or adjustable viewfinder field

396380, G03B 1310

Patent

active

057714169

ABSTRACT:
A finder has a finder field frame switching mechanism for switching and indicating two field frames relative to a reference field frame. The finder field frame switching mechanism performs switching of one field frame by a mechanical type switching mechanism, and switching of another field frame by liquid crystal. As a result, an inexpensive finder field frame switching mechanism of a simple structure can be provided.

REFERENCES:
patent: 3034394 (1962-05-01), Lange
patent: 4639111 (1987-01-01), Harvey
patent: 4652104 (1987-03-01), Harvey
patent: 5410381 (1995-04-01), Kameyama et al.
patent: 5565948 (1996-10-01), Kume et al.
patent: 5617170 (1997-04-01), Watanabe et al.

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