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 7862223 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 04, 2011

Filed:

Apr. 04, 2008
Applicant:

Lung-lin Hsu, Kaohsiung, TW;

Inventor:

Lung-Lin Hsu, Kaohsiung, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

The subject invention provides a thin and flexible light guide element, which comprises a first optical layer composed of a flexible transparent material; a second optical layer formed on the lower side of the first optical layer and having a light-adjusting structure to change the light path; and a third optical layer formed on the upper side of the first optical layer and having a convex-concave structure to homogenize the light emitted from the first optical layer, wherein the first and second optical layers have different refractive indices.


Find Patent Forward Citations

Hsu, Lung-Lin. (2011). Thin and flexible light guide element (U.S. Patent No. 7862223). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7862223

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