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 7267471 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 11, 2007

Filed:

Sep. 16, 2004
Applicant:

Hiroshi Torihara, Matsusaka, JP;

Inventor:

Hiroshi Torihara, Matsusaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a light guide body, a flat part is provided at an edge part of a fluorescent tube vicinal part (part that receives strong light), and a pear-skin texture pattern having a sine wave shape boundary is formed inside the flat part. Therefore, it is possible to alternately provide, along a direction to which the fluorescent tube extends, small pear-skin texture regions and small flat regions. In certain example embodiments, scattering intensity of the light guide body is set so that it becomes stronger gradually from the edge part close to the fluorescent tube toward the inside far from the fluorescent tube.


Find Patent Forward Citations

Torihara, Hiroshi. (2007). Light guide body, lighting device, liquid crystal display device, and electronic device (U.S. Patent No. 7267471). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7267471

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