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.
Patent No.:
Date of Patent:
May. 14, 2019
Filed:
Jul. 01, 2016
Applicant:
Nec Display Solutions, Ltd., Tokyo, JP;
Inventor:
Atsushi Kato, Tokyo, JP;
Assignee:
NEC DISPLAY SOLUTIONS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); F21V 9/40 (2018.01); F21V 9/30 (2018.01); G03B 21/20 (2006.01); G03B 21/14 (2006.01); G03B 33/08 (2006.01);
U.S. Cl.
CPC ...
G02B 26/008 (2013.01); F21V 9/30 (2018.02); F21V 9/40 (2018.02); G03B 21/14 (2013.01); G03B 21/204 (2013.01); G03B 33/08 (2013.01);
Abstract
A phosphor wheel is obtained by providing a phosphor on a rotatable substrate. The phosphor is formed of a plurality of small pieces, and the small pieces are arranged such that the phosphor has a ring shape, or a shape obtained by cutting away a portion from a ring shape about an axis of rotation of the substrate.