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:
Oct. 12, 2010
Filed:
Sep. 19, 2005
Mathias Hubertus Johannes Van Rijswick, Eindhoven, NL;
Wijnand Evert Jacobus Van Kooten, Eindhoven, NL;
Mathias Hubertus Johannes Van Rijswick, Eindhoven, NL;
Wijnand Evert Jacobus Van Kooten, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a lighting device () comprising an envelope (), a base (), a solid-state light source () and optical means () provided with a light-outcoupling surface, the solid-state light source () being optically coupled to said optical means (). The use of a spirally wound optical fiber as optical means () and a transparant envelope () shaped as a conventional light bulb provides a lighting device () which is a good look-alike of the conventional incandescent lamp, such as, for instance, the carbon filament lamp. The long life-time and high efficiency of LEDs as a solid-state light source () will make this lighting device () a very attractive alternative for the conventional incandescent lamp. The lighting device () according to the present invention has the further advantage that a large gamut of colors can be chosen and adjusted by using, for instance, red green and blue LEDs in said lighting device (). The electronics for driving and controlling the intensity and color settings can be incorporated in the lighting device ().