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:
Dec. 11, 1984
Filed:
Sep. 29, 1982
Hiroshi Kimura, Habikino, JP;
Masahiko Hisajima, Osaka, JP;
Kiyoshi Morimoto, Osaka, JP;
Kiyoshi Shibata, Osaka, JP;
Takashi Nagashima, Sakai, JP;
Yasuhiko Yoshikawa, Ikoma, JP;
Masahiro Watashi, Ikoma, JP;
Kiyonori Yamamoto, Neyagawa, JP;
Toshihiko Yamamoto, Takaishi, JP;
Shinsuke Yoshinaga, Sakai, JP;
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
An optical device in a variable magnification electrostatic copying apparatus includes a first reflecting mirror assembly mounted for reciprocal movement, a second reflecting mirror assembly mounted for reciprocal movement substantially parallel to the reciprocating direction of the first reflecting mirror assembly, and a speed-reduction interlocking mechanism for moving the second reflecting mirror assembly at a speed equal to one-half of the moving speed of the first reflecting mirror assembly, upon movement of the first reflecting mirror assembly. The optical device further includes a magnification setting mechanism for changing the relative position of the second reflecting mirror assembly with respect to the first reflecting mirror assembly according to a desired copying magnification. The magnification setting mechanism comprises a setting cam having a plurality of acting portions corresponding to a plurality of magnification values and a setting member adapted to be held by the setting cam at any one of a plurality of setting positions corresponding to the plurality of magnification values. The changing of the position of the setting member causes a change in the relative position of the second reflecting mirror assembly with respect to the first reflecting mirror assembly.