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:
Aug. 18, 2020

Filed:

Mar. 04, 2019
Applicant:

Konica Minolta, Inc., Tokyo, JP;

Inventors:

Takaki Uemura, Seto, JP;

Makoto Obayashi, Toyokawa, JP;

Masayuki Iijima, Okazaki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/45 (2006.01); H04N 1/036 (2006.01); G03G 15/043 (2006.01); G03G 15/04 (2006.01);
U.S. Cl.
CPC ...
B41J 2/451 (2013.01); G03G 15/043 (2013.01); G03G 15/04054 (2013.01); H04N 1/036 (2013.01);
Abstract

An optical print head that performs optical writing to a photoreceptor includes: a light transmissive substrate; a light emitting unit including light emitting element groups, each of which includes two or more light emitting elements disposed on a first main surface of the substrate; a lens array including lenses that correspond one-to-one to the light emitting element groups; light detection units disposed above the second main surface of the substrate in one-to-one correspondence to the light emitting element groups and that detects the light from each of the light emitting elements; and correction unit that corrects light amounts of the light emitting elements of the light emitting element group based on detection of the light detection units.


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