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.:

US 8089083 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 03, 2012

Filed:

Apr. 13, 2006
Applicant:

Janet Bee Yin Chua, Perak, MY;

Inventor:

Janet Bee Yin Chua, Perak, MY;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01);
U.S. Cl.
CPC ...
Abstract

Light emission from a light package, such as from an LED light package, is enhanced by a system and method for adjusting the refractive index at the surface of the encapsulating material surrounding the light source. The surface refractive index is changed to better match the index within the encapsulating material with the index of the media surrounding the encapsulating material. In one embodiment, the index is adjusted by roughing the surface of the encapsulating material. In another embodiment, a separate layer is created having a corrective index of refraction. The separate layer can comprise photonic crystals, if desired. In some embodiments the adjusting will achieve a graded index of refraction.


Find Patent Forward Citations

Chua, Janet Bee Yin. (2012). System and method for enhancing light emissions from light packages by adjusting the index of refraction at the surface of the encapsulation material (U.S. Patent No. 8089083). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8089083

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