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. 21, 2007
Filed:
Feb. 24, 2005
Michinori Noguchi, Otsu, JP;
Cholmin Seo, Otsu, JP;
Michinori Noguchi, Otsu, JP;
Cholmin Seo, Otsu, JP;
OPTEX Co., Ltd., Shiga, JP;
Abstract
According to one embodiment of a passive infrared sensor, a passive infrared sensorwhere an infrared sensing elementand an optical systemthat sets a detection area Aof the infrared sensing elementare covered with a cover. The passive infrared sensorincludes: a light emitting elementthat emits infrared light from the inside of the coverto the outside through the optical system; a reflective regionthat is disposed outside the coverand reflects at least some of the infrared light emitted from the light emitting element; and a light receiving elementthat receives the infrared light reflected by the reflective region, transmitted through the optical systemand reaching the inside of the cover