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:
May. 17, 2005
Filed:
Jan. 31, 2002
Applicant:
Satoshi Kawashima, Iwata-gun, JP;
Inventor:
Satoshi Kawashima, Iwata-gun, JP;
Assignee:
Minebea Co., Ltd., Kitasaku, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B385/146 ;
U.S. Cl.
CPC ...
Abstract
There is provided a spread illuminating apparatus to ensure excellent light conductivity. A cover is integrally provided over a transparent substrate sandwiching a fluid (cushioning material) of a gel, liquid, or gaseous substance. With this structure, dust generated in assembly process is prohibited from getting on the transparent substrate, and even when other members or an assembly machine hit and bend the cover during the assembly process, the bending is absorbed by the fluid, and a light reflection pattern formed on the transparent substrate is protected against damages, whereby excellent light conductivity can be maintained.