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:
Oct. 26, 2010
Filed:
Sep. 20, 2006
Takashi Urashima, Osaka, JP;
Kazumasa Takata, Osaka, JP;
Tomotaka Furuta, Osaka, JP;
Hidetoshi Utsuro, Osaka, JP;
Takashi Urashima, Osaka, JP;
Kazumasa Takata, Osaka, JP;
Tomotaka Furuta, Osaka, JP;
Hidetoshi Utsuro, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
By diffracting light emitted from a collimator lens into lights of different orders by a transmission diffraction grating, applying the diffracted lights to a flat surface of an object, forming the light that has been reflected on the flat surface of the object and thereafter retransmitted through the transmission diffraction grating into an image in a position located apart from the optical axis of the outgoing light and measuring the angle of the object with respect to the optical axis of the collimator lens using the image location and the order of the light formed as the image, the angle in a wide range can be measured with a high resolving power.