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:
Dec. 30, 2014
Filed:
Feb. 09, 2011
David James Montgomery, Oxford, GB;
James Rowland Suckling, Oxford, GB;
Katsuhiko Kishimoto, Osaka, JP;
David James Montgomery, Oxford, GB;
James Rowland Suckling, Oxford, GB;
Katsuhiko Kishimoto, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A lamp comprises a thin layer of phosphor () which is irradiated (), for example by ultraviolet radiation, by a source which typically comprises a laser diode and a condenser (). This causes the phosphor () to emit visible light with a Lambertion-type emission pattern. An optical system such as a reflector () concentrates the light from the phosphor (). The phosphor () is thermally connected to a heatsink (), of example by a plate () of sapphire glass, so as to dissipate the heat produced by the phosphor (). The phosphor () may be mounted on a plane reflector () disposed on or comprising the heatsink () and facing a curved reflector () and the radiation source. Alternatively, the optical system may have an optical axis and the phosphor () may be substantially flat and inclined with the respect to the optical axis.