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. 08, 2014
Filed:
Jul. 12, 2012
Takahiro Inoue, Osaka, JP;
Tadamasa Kimura, Osaka, JP;
Takahiro Inoue, Osaka, JP;
Tadamasa Kimura, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A sensor circuit which is capable of measuring illuminance without causing unevenness in results detected with spectral characteristics and a variation in sensitivity regardless of whether or not light receiving elements are evenly irradiated with light includes a plurality of light receiving elements, the light receiving elements each being set to a single spectral characteristic selected from spectral characteristics that are different from each other, and the single spectral characteristic set in each of the light receiving elements being sequentially switched among the spectral characteristics that are different from each other so that the light receiving elements are set to different spectral characteristics during measurement of the illuminance.