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:
Aug. 26, 2008
Filed:
Jun. 14, 2006
Tomoki Deguchi, Osaka, JP;
Shinichi Tsukigi, Osaka, JP;
Tomoki Deguchi, Osaka, JP;
Shinichi Tsukigi, Osaka, JP;
Keyence Corporation, Osaka, JP;
Abstract
A concave curved surfaceis formed on a light inputting surfaceof a light emitting lens, and a convex curved surfaceis formed on a light emitting surface. Only laser light close to an optic axis A is inputted to the concave curved surface, and a spread angle is enlarged, and thereby, it is possible to make intensity distribution more uniform, and to reduce an error on the occasion of comparing a received light amount of reflected light with a threshold value, and therefore, even if a light receiving surface is small, it is possible to detect an object with high accuracy.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile