Tele/pan applied to lowest cost camera uses passive optical enco

Details Tele/pan applied to lowest cost camera uses passive optical enco Tele/pan applied to lowest cost camera uses passive optical enco

1990-01-16

1990-11-27

Mathews, A. A.

354222, G03B 1724

Patent

active

049739972

ABSTRACT:
Camera with adjustable viewfinder mask having differently dimensioned openings for pseudo-photography, has light pipes to provide binary coding of film frames corresponding to mask positions.

REFERENCES:
patent: 1481272 (1924-01-01), Robertson et al.
patent: 1848814 (1932-03-01), Allen
patent: 3490844 (1970-01-01), Sapp
patent: 3552283 (1971-01-01), Babcock et al.
patent: 4357102 (1982-11-01), Taren et al.
patent: 4583831 (1986-04-01), Harvey
patent: 4650304 (1987-03-01), Harvey
patent: 4833493 (1989-05-01), Lamar
patent: 4926203 (1990-05-01), Hata et al.

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