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:
Jan. 11, 2011
Filed:
Apr. 27, 2009
Motoharu Okuno, Ayabe, JP;
Motoharu Okuno, Ayabe, JP;
Omron Corporation, Kyoto, JP;
Abstract
This invention provides a coaxial regressive reflection type photoelectronic sensor capable of enhancing detection accuracy. A sensor head includes a light emitting diode for emitting a detection light; a lens for converting the detection light to a parallel light and projecting the parallel light to an exterior as an external detection light; a half mirror for separating an optical path of the detection light and an optical path of a return light from the regressive reflection plate; and a photodiode for receiving the return light from the half mirror. The lens includes a convex surface formed to convert a signal light to a parallel light, and a plane tilted from a perpendicular direction with respect to the parallel light or an axis connecting a light emitting diode chip and a center portion of the convex surface. The reflected light of an external signal light at the plane passes a path different from that of the return light so as to be avoided from entering the photodiode chip.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile