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:
Feb. 08, 2011
Filed:
Dec. 23, 2008
Wataru Hamada, Kawasaki, JP;
Yuji Takemoto, Kawasaki, JP;
Toshiharu Hagii, Kawasaki, JP;
Hui Young Kang, Kawasaki, JP;
Masashi Tagawa, Kawasaki, JP;
Wataru Hamada, Kawasaki, JP;
Yuji Takemoto, Kawasaki, JP;
Toshiharu Hagii, Kawasaki, JP;
Hui Young Kang, Kawasaki, JP;
Masashi Tagawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A light guide mechanism for an illuminance sensor includes: a lighting window configured to pass through an external light; the illuminance sensor configured to detect an illuminance of the light passed through the lighting window; and a light-blocking part provided between the lighting window and the illuminance sensor and configured to block a light other than the light passed through the lighting window. The light-blocking part has an inner surface inclined with respect to a line perpendicular to a light-receiving surface of the illuminance sensor. A direction of inclination of the inner surface is such that the inner surface faces the light-receiving surface of the illuminance sensor.