Photography – Camera detail – Film restraining means or pressure plate
Patent
1997-02-10
1998-12-08
Mathews, A. A.
Photography
Camera detail
Film restraining means or pressure plate
396319, G03B 1724, G03B 1700
Patent
active
058483110
ABSTRACT:
An improved film pressure plate of a camera for use with a film having a magnetic recording portion is provided. The film pressure plate comprises a magnetic head for recording magnetic information onto the magnetic recording portion of the film and a film contact surface which may include a plurality of small projections formed on a portion of a surface of the film pressure plate. The projections are not provided on at least one of a lengthwise elongated area, which includes the magnetic head, and a widthways elongated area, which may also include the magnetic head. As a consequence of this arrangement, a flatness of the film is assured by pressing the film against the exposure aperture of the camera.
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patent: 5097278 (1992-03-01), Tamamura et al.
patent: 5136318 (1992-08-01), Aoshima
patent: 5257054 (1993-10-01), Kameyama
patent: 5353078 (1994-10-01), Aoshima
patent: 5508768 (1996-04-01), Wakabayashi et al.
patent: 5517266 (1996-05-01), Funaki et al.
patent: 5555045 (1996-09-01), Tsujimoto et al.
Sakurai Hidenori
Satake Hiroyuki
Mathews A. A.
Olympus Optical Co. Ltd
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