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:
Apr. 07, 2015
Filed:
Mar. 15, 2012
Jeffery R. Parker, Richfield, OH (US);
Timothy A. Mccollum, Avon Lake, OH (US);
Fumitomo Hide, San Jose, CA (US);
Alexey Titov, Sagamore Hills, OH (US);
Ian Hardcastle, Sunnyvale, CA (US);
Jeffery R. Parker, Richfield, OH (US);
Timothy A. McCollum, Avon Lake, OH (US);
Fumitomo Hide, San Jose, CA (US);
Alexey Titov, Sagamore Hills, OH (US);
Ian Hardcastle, Sunnyvale, CA (US);
Rambus Delaware LLC, Brecksville, OH (US);
Abstract
A light bulb includes a base, light guide, and light source. The base is configured to mechanically mount the light bulb and receive electrical power. The light guide includes light input regions, at least one of the light input regions associated with an optical modifying characteristic, the light guide configured to propagate light by total internal reflection. The light source is located adjacent the light input regions. The light source and light input regions are variably positionable relative to one another to vary location at which light is incident on the light input regions such that light emitted from the light source is selectively apportioned between the light input regions. A characteristic of the light output from the light bulb is modified based on the optical modifying characteristic of the at least one of the light input regions and the relative positioning of the light source and light input regions.