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:
Dec. 14, 2021

Filed:

Feb. 12, 2020
Applicant:

Oki Electric Industry Co., Ltd., Tokyo, JP;

Inventors:

Masamitsu Nagamine, Tokyo, JP;

Ren Nakamichi, Tokyo, JP;

Akihiro Yamamura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 3/00 (2006.01); G03G 15/04 (2006.01); G03G 21/18 (2006.01); B41J 11/46 (2006.01); G03G 15/00 (2006.01); G03B 27/52 (2006.01); G03G 21/16 (2006.01); H01L 47/00 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G02B 3/0056 (2013.01); B41J 11/46 (2013.01); G02B 3/0031 (2013.01); G03B 27/523 (2013.01); G03B 27/528 (2013.01); G03G 15/00 (2013.01); G03G 15/04 (2013.01); G03G 15/04036 (2013.01); G03G 15/0865 (2013.01); G03G 15/0868 (2013.01); G03G 15/0872 (2013.01); G03G 21/1633 (2013.01); G03G 21/1666 (2013.01); G03G 21/1853 (2013.01); H01L 47/00 (2013.01); G03G 2215/0668 (2013.01); G03G 2215/0692 (2013.01);
Abstract

The lens unit includes a first lens array including a plurality of first lens elements each of which has a first optical axis and which are arranged in an arrangement direction perpendicular to the first optical axis. A second lens array includes a plurality of second lens elements each of which has a second optical axis and which are arranged in the arrangement direction while facing the first lens elements. The second lens array is in a positional relationship relative to the first lens array such that the second lens array is rotated about a virtual line perpendicular to both the first optical axis and the arrangement direction as the rotational axis by 180 degrees. The optical axes of the lens elements located at the substantially centers of the lens arrays in the arrangement direction are arranged to substantially coincide with each other.


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