Photocopying – Projection printing and copying cameras – Focus or magnification control
Patent
1987-11-30
1990-04-03
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
Focus or magnification control
355 60, 355 74, G03B 2732, G03B 2752
Patent
active
049147447
ABSTRACT:
An apparatus for automatically feeding document sheets one by one to an exposure position through a specified transport path and automatically photographing each sheet in response to an operation signal given when the sheet has reached the exposure position. The apparatus comprises sensors for detecting the size or kind of the sheet transported through the path, and a mode change mechanism operable in accordance with the detection data obtained by the sensor for changing the photographing mode as to the magnification of its phohtographic optical system or the aperture size of the aperture assembly thereof. The photographing mechanism of the apparatus is held out of operation while the mode change mechanism is in operation even if the operation signal is given. Consequently, each sheet can be photographed on the film in suitable mode, and the failure due to the mode changing procedure is avoidable.
REFERENCES:
patent: 3865486 (1975-02-01), Miles et al.
patent: 4029412 (1977-06-01), Spence-Bate
patent: 4124290 (1978-11-01), Axelrod et al.
patent: 4148579 (1979-04-01), Axelrod et al.
patent: 4214834 (1980-07-01), Findeis et al.
patent: 4408876 (1983-10-01), Steidle
patent: 4419007 (1983-12-01), Kingsley
Hayes Monroe H.
Minolta Camera Kabushiki Kaisha
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