G - Physics
01
J
73/56
G01J 3/50 (2006.01) H04N 1/40 (2006.01) H04N 1/48 (2006.01)
Patent
CA 1251058
- 1 - Abstract: A color reader emits light from fluorescent lamps of the three primary colors of red, green and blue sequentially. Light reflected by a manuscript is received by a single CCD sensor to perform the color reading operation. Provision is made for varying the light emission period of each fluorescent lamp of the red, green and blue and the integral period of the light energy of the CCD sensor, in accordance with the output level of the CCD sensor which receives the reflected light from each emitted light of red, green and blue, against white-color material, so that the output levels of the CCD sensors corresponding to the emitted light energies of the red, green, blue fluorescent lights are rendered almost the same.
495495
Kirby Eades Gale Baker
Sharp Kabushiki Kaisha
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