Photocopying – Projection printing and copying cameras – Identifying – composing – or selecting
Patent
1989-11-01
1991-01-29
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
Identifying, composing, or selecting
355 44, 355 45, 355 66, 355 74, 355 55, G03B 2752, G03B 2758, G03B 2770
Patent
active
049890336
ABSTRACT:
A copyboard and a platen are disposed horizontally so that a copy can be horizontally placed on the copyboard and a photosensitive medium can be horizontally supported on the platen. A mirror disposed above the copyboard and a movable mirror disposed above the platen jointly form an optical path extending from the copyboard to the platen, while shortening the distance between the copyboard and the platen. Two pairs of mask plates are disposed in front of and parallel to the surface of the platen on which the photosensitive medium is to be supported, the mask plates being independently movable along two axes perpendicular to each other. The distances from the optical axis to the mask plates are determined for each of images to be photographed on the photosensitive medium, based on various input data including a photographing dimension, the distances between the photosensitive medium and the mask plates, etc.
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Hayes Monroe H.
Hirakawa Kogyosha Co., Ltd.
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