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:
Dec. 05, 2006
Filed:
Jan. 10, 2002
Yoshiji Iwadare, Matsumoto, JP;
Kazuto Shinohara, Suwa, JP;
Shohei Fujisawa, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The light emitted from a focal position-detecting light sourceand reflected from a reflectoris projected onto a screenand a projected image on the screenis detected by a focal position-detecting cameraBased on this projected image, the focal position-detecting light sourceis moved by a position adjusting systemso as to place the focal position-detecting light sourceat a focal position of the reflectorand the position of the focal position-detecting light sourceat this time is detected as the focal position of the reflectorWhen the focal position of the reflectoris detected, the projected image on the screendetected by the focal position-detecting camerais used, and, therefore, the conventional measurement by a three dimensional measuring instrument is made unnecessary, thereby improving the working efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile