Photocopying – Projection printing and copying cameras – With developing
Patent
1988-12-15
1990-05-08
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
With developing
355 32, 355 35, G03B 2732, G03B 2752
Patent
active
049242555
ABSTRACT:
In order to adjust light components, there is provided a filter unit which includes a light source for emitting a light, a filter housing to which an opening is formed; and three filters arranged in vertical direction within the filter housing and adapted to be drawn from the opening. Each of the three filters adjusts one of red, blue and green components contained in the light. A drive unit is further included in the filter housing which selectively draws the three filters from the opening to an optical path. Accordingly, the light components can be adequately adjusted by drawing the filters in the optical path. By the employment of such a filter unit in a color image recording apparatus, the color tone of the image reproduced in a copy sheet can be adjusted.
REFERENCES:
patent: 3775006 (1973-11-01), Hartman et al.
patent: 3923393 (1975-12-01), Inoue et al.
patent: 4603969 (1986-08-01), Terashita
patent: 4746955 (1988-05-01), Slayton et al.
Horaguchi Yoichi
Nagata Osamu
Sakakibara Kenji
Sugiura Toshio
Suzuki Tsuyoshi
Brother Kogyo Kabushiki Kaisha
Wintercorn Richard A.
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