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:
Sep. 24, 2024

Filed:

May. 28, 2021
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Satoru Okagaki, Tokyo, JP;

Masatoshi Nishimura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0033 (2013.01); G02B 6/0088 (2013.01);
Abstract

First light is incident on a diffuser, and scattered light emerges from the diffuser. The diffuser includes one light incident surface on which the first light is incident in a first direction and a first light transmitting surface. The light incident surface is formed on an end surface of the diffuser. First transmitted light emerges from the first light transmitting surface. Second transmitted light emerges from second light transmitting surface that is a surface other than the first light transmitting surface of the diffuser. Intensity of the first transmitted light increases as a direction in which the first transmitted light emerges approaches the first direction. Correlated color temperature of the first light is lower than correlated color temperature of the first transmitted light and higher than correlated color temperature of the second transmitted light.


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