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:
Sep. 12, 2006

Filed:

Sep. 10, 2004
Applicants:

Kenji Yokota, Kanagawa, JP;

Katsuto Sumi, Kanagawa, JP;

Inventors:

Kenji Yokota, Kanagawa, JP;

Katsuto Sumi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 41/00 (2006.01); G03G 5/02 (2006.01); H04N 1/405 (2006.01);
U.S. Cl.
CPC ...
Abstract

A light amount adjustment method for use in an image exposure apparatus records an image by scanning a photosensitive material with a light beam modulated in accordance with image signal. The light beam has a first light amount level and a second light amount level that is higher than the first light amount level to perform exposure of one dot. The method sets the first light amount level based on the image signal, exposes test patches by displacing a focus position of the light beam on the photosensitive material and changing the second light amount level that is outputted in accordance with changing of the image signal and adjusts the second light amount level such that halftone dot percent fluctuations of the exposed test patches are minimized to set the adjusted second light amount level.


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