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. 25, 2008
Filed:
Jun. 03, 2005
Hideo Wada, Katsuragi, JP;
Nobuhisa Watanabe, Katsuragi, JP;
Takayuki Taminaga, Nara-ken, JP;
Hajime Kashida, Nara, JP;
Hideo Wada, Katsuragi, JP;
Nobuhisa Watanabe, Katsuragi, JP;
Takayuki Taminaga, Nara-ken, JP;
Hajime Kashida, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
The optical object discriminating device includes a light projecting part which applies light, which is emitted from a semiconductor light emitting element, to a measuring object which is an object to be measured, and a light receiving part which receives reflected light reflected by the measuring object. Between the light receiving part and the measuring object is placed a polarization-state selector part which permits polarized light of a specified polarization direction to pass therethrough. A signal processing part processes a signal outputted by the light receiving part, and measures intensity of light of the polarization direction permitted by the polarization-state selector part to pass therethrough.