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. 18, 2005
Filed:
Oct. 30, 2002
Yoshikazu Kataoka, Kyoto, JP;
Eiichi Tamaki, Kyoto, JP;
Takahide Hirawa, Kyoto, JP;
Dainippon Screen Mfg. Co., Ltd, Kyoto, JP;
Abstract
In an image recording apparatuswhich records an image on a recording mediumby moving an optical headwhile rotating the recording mediumheld by a holding drum, a photodetectorhaving a plurality of photodetector elementsis provided in a range of movement of the optical head. In correcting beam intensity, the optical headis positioned so precisely that the photodetectorcan receive the signal light beams. This constitution makes it possible to detect signal light beams from the light modulator with high S/N ratio as compared with a conventional case where one photodetector element sequentially receives the signal light beams, and therefore possible to correct the beam intensities with high accuracy.