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:
Sep. 24, 2002
Filed:
Jun. 02, 2000
Shinichi Shikii, Kaisei-machi, JP;
Yasuhiro Kawai, Kaisei-machi, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A light beam deflected by a polygon mirror ( ) is incident substantially perpendicularly on a trapezoidal reflecting prism ( ) having an incidence surface ( ) and two reflection surfaces ( ). Then, the light beam incident on the reflecting prism ( ) is totally reflected at the first reflection surface ( ) toward the second reflection surface ( ). Next, the totally reflected light beam is totally reflected at the second reflection surface ( ) toward the incidence surface ( ) and is emitted from the incidence surface ( ) in the opposite direction from the incident direction. The emitted light beam passes through a cylindrical lens ( ) and is reflected and directed toward a scan surface ( ) by a cylindrical mirror ( ). The reflected light beam forms a scanning spot-on the scan surface ( ).