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. 18, 2006
Filed:
Jan. 24, 2005
Shinji Maruyama, Yokohama, JP;
Tomoyuki Itou, Yokohama, JP;
Yoshihiro Takahashi, Yokohama, JP;
Yasuhiro Omori, Kawasaki, JP;
Yoshihiko Yoshida, Kawasaki, JP;
Masaharu Doi, Kawasaki, JP;
Shinji Maruyama, Yokohama, JP;
Tomoyuki Itou, Yokohama, JP;
Yoshihiro Takahashi, Yokohama, JP;
Yasuhiro Omori, Kawasaki, JP;
Yoshihiko Yoshida, Kawasaki, JP;
Masaharu Doi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical device guides propagating light to exit from a desired side surface of a substrate while maintaining sufficient power within a limited size of the substrate and which facilitates adjustment of a mount position of a light-receiving element by increasing allowable tolerance of the mount position of the light-receiving element. The optical device has a substrate, a light propagating direction path formed in the substrate, and a reflection groove formed in an output-side of said light propagating direction path in the substrate. A side wall of the reflection groove is formed to become a convex reflection surface in relation to light which enters from the light propagating direction path, and the light output from the light propagating direction path undergoes total reflection on a side wall forming the reflection surface and lets the reflected light exit from a predetermined side surface of the substrate while enlarging an image.