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.

Date of Patent:
Feb. 05, 2013

Filed:

Aug. 27, 2009
Applicants:

Ken Tsuchiya, Ebina, JP;

Michio Taniwaki, Ebina, JP;

Fumihiko Ogasawara, Ebina, JP;

Toshio Hisamura, Kawasaki, JP;

Osamu Yasui, Ebina, JP;

Michihiro Inoue, Ebina, JP;

Inventors:

Ken Tsuchiya, Ebina, JP;

Michio Taniwaki, Ebina, JP;

Fumihiko Ogasawara, Ebina, JP;

Toshio Hisamura, Kawasaki, JP;

Osamu Yasui, Ebina, JP;

Michihiro Inoue, Ebina, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/435 (2006.01); B41J 2/47 (2006.01);
U.S. Cl.
CPC ...
Abstract

An exposure device includes a plurality of light-emitting elements, a lighting driver, a first storage, a reader, a shading correction unit and a second storage. The lighting driver drives and lights up the light-emitting elements based on image data. The first storage stores light amount unevenness correction values of the respective light-emitting elements. The reader reads the light amount unevenness correction values stored in the first storage. The shading correction unit executes shading correction for the light amount unevenness correction values read by the reader. The second storage stores correction values obtained by having the shading correction unit to execute the shading correction for the light amount unevenness correction values. The lighting driver controls light power of the respective light-emitting elements based on the correction values stored in the second storage.


Find Patent Forward Citations

Loading…