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:
Apr. 25, 2006
Filed:
Dec. 29, 2003
Tomonari Torii, Settsu, JP;
Tomonari Torii, Settsu, JP;
Keyence Corporation, Osaka, JP;
Abstract
An optical sensor projects light rays emanating from a light emitting element that are collimated by a lens and reflected by a mirror and then directed to a light projecting prism. The collimated light rays incident upon the prism are refracted at an incident surface and come out from the prism through a light exit surface so as thereby to be projected into the field of detection. Light rays passing through the field of detection are directed to a light receiving prism. The light rays incident upon the light receiving prism through a light incident surface are reflected by a light exit surface and then come out from the light receiving prism. The outgoing light rays are received and converted into an electric signal by a light receiving element.