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. 10, 2011
Filed:
Mar. 06, 2007
Yi-qun LI, Danville, CA (US);
Yi Dong, Tracy, CA (US);
James Caruso, Albuquerque, NM (US);
Charles O. Edwards, Rio Rancho, NM (US);
Yi-Qun Li, Danville, CA (US);
Yi Dong, Tracy, CA (US);
James Caruso, Albuquerque, NM (US);
Charles O. Edwards, Rio Rancho, NM (US);
Intematix Corporation, Fremont, CA (US);
Abstract
A light emitting sign comprising a light emitting display surface including at least one phosphor, and at least one radiation source configured to irradiate the display surface with excitation energy such that the phosphor emits light of a selected color. The sign further comprises a filter which is substantially transparent to light emitted by the display surface, filtering other colors of light. The display surface may be configured into a shape of a character, a symbol, or a device. Alternatively, a mask having at least one window substantially transparent to the emitted light and/or at least one light blocking region may be provided in which the window and/or light blocking region define a character, a symbol, or a device.