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:
Aug. 19, 2014
Filed:
Jun. 29, 2010
Applicants:
Yong Liu, Shanghai, CN;
Kun-wah Yip, Shanghai, CN;
Di Lou, Shanghai, CN;
Inventors:
Assignee:
Koninklijke Philips N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/52 (2006.01); F21V 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to illumination, especially to a grid for illumination apparatus. This invention provides a grid () for attenuating electromagnetic radiation from a light source. The grid comprises a plurality of baffles (), each baffle being electro conductive, wherein the plurality of baffles are configured to form a plurality of cells (), each cell being formed as a waveguide so as to attenuate the electromagnetic radiation from the light source. In this way, the electromagnetic radiation from the light source can be reduced or prevented so as to decrease the danger to users.