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:
Oct. 21, 2003
Filed:
Jul. 19, 2001
Tetsuya Nishiguchi, Nara, JP;
Makoto Masuda, Nara, JP;
Toshiro Mukai, Yamatotakada, JP;
Kenzou Ohkubo, Yamatotakada, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A light scanning apparatus including a beam emitter for emitting a light beam; a multi-facet rotary mirror having a plurality of reflective facets for reflecting the light beam emitted from the beam emitter and rotatable for scanning the light beam reflected on the reflective facets over a scanning object; an incident optical system for shaping the light beam emitted from the beam emitter to allow the light beam to have a greater width than a width of each of the reflective facets of the multi-facet rotary mirror as measured in a scanning direction for overfilled facet illumination and directing the light beam to the multi-facet rotary mirror; and an f&thgr; lens provided in a path of the light beam extending from the multi-facet rotary mirror to the scanning object; wherein the incident optical system comprises deflector configuration provided between the f&thgr; lens and the scanning object for deflecting the light beam emitted from the beam emitter toward the multi-facet rotary mirror so as to cause the light beam deflected by the deflector configuration to pass through an end portion of the f&thgr; lens to reach the multi-facet rotary mirror.