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:
Feb. 13, 2024

Filed:

Jan. 20, 2023
Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Takashi Ota, Tokyo, JP;

Nobuyuki Suzuki, Tokyo, JP;

Makoto Hasegawa, Tokyo, JP;

Masafumi Okada, Tokyo, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21K 9/68 (2016.01); F21K 9/69 (2016.01); F21V 7/00 (2006.01); F21V 5/04 (2006.01); G02F 1/1335 (2006.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21K 9/68 (2016.08); F21K 9/69 (2016.08); F21V 5/04 (2013.01); F21V 7/0066 (2013.01); F21Y 2115/10 (2016.08); G02F 1/133526 (2013.01);
Abstract

A lighting device including a first unit and a second unit, the first unit including: a first funnel shaped reflector having a first neck, a first opening, a first reflecting surface and a first light axis, a first LED emitting a first color disposed on the first neck, a first liquid crystal lens disposed at the first opening, a second unit including: a second funnel shaped reflector having a second neck, a second opening, a second reflecting surface and a second light axis, a second LED emitting a second color disposed on the second neck, a second liquid crystal lens disposed at the second opening; a length hof the first funnel shaped reflector is same as a length of the second funnel shaped reflector, and a diameter dof the first opening is same as a diameter of the second opening, and h/dis two or more.


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