Photocopying – Projection printing and copying cameras – With cathode ray tube for light source
Patent
1997-06-11
1999-08-10
Mathews, Alan A.
Photocopying
Projection printing and copying cameras
With cathode ray tube for light source
355 38, 347226, 347230, G03B 2752, G03B 2780, G02F 113
Patent
active
059367083
ABSTRACT:
A light-pattern illuminating apparatus comprises: a light-pattern holding device in which, when a light pattern is applied to one surface thereof, the light pattern is written, and from which, when reading light is applied to another surface thereof, the written light pattern is read; a light-pattern writing device for applying the light pattern corresponding to image information to the one surface of the light-pattern holding device in a state in which at least vertical scanning is controlled; a light-pattern reading and illuminating device for illuminating another surface of the light-pattern holding device with the reading light and for illuminating an image receiving element with the light pattern which has been read from the light-pattern holding device; and a controlling device for controlling the duration of illumination of the image receiving element with the light pattern so that the duration becomes approximately an integral multiple of the period of vertical scanning.
REFERENCES:
patent: 5235437 (1993-08-01), Katagiri et al.
patent: 5805274 (1998-09-01), Saita
Fuji Photo Film Co. , Ltd.
Mathews Alan A.
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