The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 1990
Filed:
Dec. 15, 1988
Yoichi Horaguchi, Nagoya, JP;
Kenji Sakakibara, Ichinomiya, JP;
Makoto Yamada, Gifu, JP;
Osamu Nagata, Aichi, JP;
Tsuyoshi Suzuki, Nagoya, JP;
Toshio Sugiura, Nagoya, JP;
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.