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. 02, 2026

Filed:

Mar. 21, 2024
Applicant:

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

Inventors:

Satoshi Kuzuhara, Osaka, JP;

Kazuhiro Minami, Osaka, JP;

Hiroaki Okayama, Nara, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/14 (2006.01); G02B 5/02 (2006.01); G02B 5/18 (2006.01); G02B 5/32 (2006.01); G02B 6/26 (2006.01); G02B 6/34 (2006.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01); G02B 27/02 (2006.01); G03H 1/02 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 5/02 (2013.01); G02B 5/18 (2013.01); G02B 5/32 (2013.01); G02B 6/262 (2013.01); G02B 6/34 (2013.01); G02B 27/0081 (2013.01); G02B 27/02 (2013.01); G03H 1/02 (2013.01); G02B 2027/0112 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0123 (2013.01); G02B 2027/0125 (2013.01);
Abstract

The optical system includes a light guide guiding an image light ray including a first light ray with a first wavelength range and a second light ray with a second wavelength range having wavelengths shorter than wavelengths in the first wavelength range, to a field of view region as a virtual image. The light guide includes a first dividing region including first dividing points dividing the incident first light ray and a second dividing region including second dividing points dividing the incident second light ray. The first dividing points include first and second points respectively corresponding to first and second peripheral regions of the field of view region. The second dividing points include third and fourth points respectively corresponding to the first and second peripheral regions. Dividing efficiencies E1 to E4 at the first to fourth points satisfy the following formula (1).


Find Patent Forward Citations

Loading…