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:
Mar. 05, 2013
Filed:
Dec. 27, 2010
Akifumi Yamaguchi, Osaka, JP;
Hideo Wada, Osaka, JP;
Masaru Kubo, Osaka, JP;
(Jason) Chih-hung LU, Hsin-Chu, TW;
Akifumi Yamaguchi, Osaka, JP;
Hideo Wada, Osaka, JP;
Masaru Kubo, Osaka, JP;
(Jason) Chih-Hung Lu, Hsin-Chu, TW;
Sharp Kabushiki Kaisha, Osaka, JP;
Pixart Imaging Inc., Hsin-Chu, TW;
Abstract
An optical ranging sensor includes a light emitting unit for projecting a light beam on an object to be measured, a light receiving unit on which a light spot of reflected light of the light beam from the object is formed, and a processing circuit unit for processing output signals from the light receiving unit and detecting a distance to the object. The light receiving unit includes an effective light receiving part having light receiving cells arranged in matrix form in a first direction in which a position of the light spot moves as the object moves along a direction of an optical axis of the light emitting unit, and in a second direction orthogonal to the first direction. A size of the effective light receiving part in the second direction is not smaller than a radius of the light spot but not larger than a diameter thereof.