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:
Feb. 19, 2008
Filed:
Dec. 01, 2004
Takahide Hirawa, Kyoto, JP;
Takahide Hirawa, Kyoto, JP;
Dainippon Screen Mfg. Co., Ltd., Kyoto, JP;
Abstract
In an image recording apparatus for recording an image by guiding zeroth order diffracted light beams from a plurality of diffraction grating type light modulator elements as signal beams to a recording medium, a transition of each of light modulator elements from an OFF state to an ON state is detected and when this transition is detected, the light modulator element is temporarily supplied with an auxiliary driving voltage (V) between a driving voltage (V) for bringing the light modulator element into the ON state and a driving voltage (V) for bringing the light modulator element into the OFF state. This suppresses an overshoot due to a sharp change of the light modulator element to the ON state and achieves beam writing with appropriate line space ratio.