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:
Jul. 16, 2019
Filed:
Oct. 06, 2016
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 21/00 (2006.01); F21V 29/502 (2015.01); F21V 9/30 (2018.01); G02B 7/00 (2006.01); G03B 21/16 (2006.01); F21V 5/00 (2018.01); G02B 5/18 (2006.01); F21Y 115/10 (2016.01); F21V 13/02 (2006.01); F21W 131/20 (2006.01); F21Y 115/30 (2016.01);
U.S. Cl.
CPC ...
F21V 29/502 (2015.01); F21V 5/004 (2013.01); F21V 9/30 (2018.02); G02B 5/1876 (2013.01); G02B 7/008 (2013.01); G03B 21/16 (2013.01); F21V 13/02 (2013.01); F21W 2131/20 (2013.01); F21Y 2115/10 (2016.08); F21Y 2115/30 (2016.08);
Abstract
A wavelength conversion device includes: a light source that emits light having a predetermined wavelength included in a wavelength range from ultraviolet light to visible light; a phosphor layer that converts the wavelength of light from the light source which is incident on an incidence face thereof; and an optical component that is disposed between the light source and the phosphor layer, and projects light emitted by the light source onto the incidence face of the phosphor layer in a ring shape.