Photography – Camera combined with or convertible to diverse art device
Patent
1996-10-11
1999-03-16
Gray, David M.
Photography
Camera combined with or convertible to diverse art device
G03B 1900
Patent
active
058841091
ABSTRACT:
An electro-developing type camera uses an electro-developing recording medium including an electrostatic information recording medium and an electric charge keeping medium. The camera has a transparency sensor for detecting dark-zone-transparency data at a portion of the electric charge keeping medium corresponding to a dark zone defined on a light receiving surface of the electrostatic information recording medium. It is determined whether or not the dark-zone-transparency data is substantially equal to reference-transparency data. If the dark-zone-transparency data is not substantially equal to the reference-transparency data, it is warned that the electro-developing recording medium has been recorded on.
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Kamiyama Hironori
Okabe Masato
Sato Koichi
Shimizu Osamu
Yamashita Yuudai
Asahi Kogaku Kogyo Kabushiki Kaisha
Chizmar John
Dai Nippon Printing Co. Ltd.
Gray David M.
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