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:
Jul. 26, 2005
Filed:
Mar. 28, 2003
Yoshihiro Hama, Saitama-ken, JP;
Masakazu Hirano, Tokyo, JP;
Yoshihiro Hama, Saitama-ken, JP;
Masakazu Hirano, Tokyo, JP;
PENTAX Corporation, Tokyo, JP;
Abstract
There is provided a multi-beam scanning device including a first, a second and a third light emitting elements which emit a first, a second and a third light beams, respectively, and a prism unit through which the first, second and third light beams respectively emitted by the first, the second and the third light emitting elements pass. The prism unit includes at least two prisms being bonded to each other, a first reflective portion and a second reflective portion being formed on a surface on which said at least two prisms are bonded to each other. Further, the prism unit has a gap formed between the first reflective portion and the second reflective portion, the third beam emitted by the third light emitting element passing through the gap.