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 7806546 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 05, 2010

Filed:

Apr. 06, 2007
Applicants:

Tung-ming Hsu, Tu-cheng, TW;

Shao-han Chang, Tu-cheng, TW;

Inventors:

Tung-Ming Hsu, Tu-cheng, TW;

Shao-Han Chang, Tu-cheng, TW;

Assignee:

Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 17/02 (2006.01); G09F 13/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

An exemplary optical plate includes a first transparent layer (), a second transparent layer () and a light diffusion layer (). The first transparent layer includes an outer surface () and a plurality of first conical frustum-shaped depressions () defined at the outer surface. The second transparent layer includes an outer surface () and a plurality of second conical frustum-shaped depressions () defined at the outer surface. The first transparent layer, the light diffusion layer, and the second transparent layer are integrally formed, with the first transparent layer in immediate contact with the light diffusion layer, and the second transparent layer in immediate contact with the light diffusion layer. The light diffusion layer includes a transparent matrix resin () and a plurality of diffusion particles () dispersed in the transparent matrix resin.


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