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. 23, 2026

Filed:

May. 31, 2024
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Tsuneo Uchida, Chiba, JP;

Satoshi Kuzuhara, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 17/08 (2006.01); G02B 13/16 (2006.01);
U.S. Cl.
CPC ...
G02B 17/0816 (2013.01); G02B 13/16 (2013.01);
Abstract

The present disclosure is directed to an optical system having a reduction conjugate point on a reduction side and a magnification conjugate point on a magnification side, and internally having an intermediate imaging position having a conjugate relationship with each of the reduction conjugate point and the magnification conjugate point, the optical system including: a prism provided on the magnification side, the prism formed of a transparent medium; and a sub-optical system provided between the reduction conjugate point and the prism, the sub-optical system, wherein the prism includes a first transmission surface positioned on the reduction side, a second transmission surface positioned on the magnification side, and at least one reflection surface positioned therebetween, wherein the following Expression is satisfied:


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