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:
Jun. 20, 2023

Filed:

Apr. 09, 2021
Applicant:

Sharp Kabushiki Kaisha, Sakai, JP;

Inventors:

Kenzo Ohkubo, Sakai, JP;

Manabu Matsuo, Sakai, JP;

Takaharu Motoyama, Sakai, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01); G03G 15/04 (2006.01); G02B 7/02 (2021.01); G02B 26/12 (2006.01); G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/04036 (2013.01); G02B 7/021 (2013.01); G02B 26/0816 (2013.01); G02B 26/125 (2013.01);
Abstract

An optical member that refracts a light beam to diverge or focus the light beam, includes: at least three pairs of opposing surfaces. Each of the three pairs of opposing surfaces include a lens. Curvatures of the lenses at one side surfaces of the respective three pairs of surfaces are all the same, or curvatures of the lenses at one side surfaces of respective pairs of at least two pairs of the three pairs of surfaces are different from each other, and respective shortest distances between optical axes of the lenses at the one side surfaces of respective pairs of the at least two pairs of surfaces, and reference sides which are each any one of respective sides surrounding surfaces including the lenses are different from each other.


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