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. 14, 1997
Filed:
May. 28, 1996
Keiichi Nashimoto, Minami-ashigara, JP;
Fuji Xerox, Tokyo, JP;
Abstract
An optical scanning device of the thin film waveguide type, which has a scanning speed and excellent scanning accuracy that can be used in a laser beam printer, a digital copier, a facsimile apparatus or the like, and an image forming apparatus using the optical scanning device are disclosed. The optical scanning device comprising: a thin film waveguide; a light source for emitting a plurality of laser beams to the thin film waveguide; a comb-like electrode for exciting a surface acoustic wave for deflecting the laser beams in the thin film waveguide; and a plurality of emitting means for emitting the deflected laser beams to an outside of the thin film waveguide, the emitting means being equal in number to the laser beams is disclosed. In an embodiment, the plurality of emitting means are located at the same position in a traveling direction of the incident laser beams, and have different emittance angles. In another embodiment, the plurality of emitting means are located at different positions in a traveling direction of the incident laser beams, and have the same emittance angle.