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:
Apr. 19, 2011
Filed:
Mar. 02, 2005
Hideki Etori, Saitama-shi, JP;
Hideki Etori, Saitama-shi, JP;
Kimoto Co., Ltd., , JP;
Abstract
A light control film providing improved n front luminance and appropriate light diffusion, without problems of interference pattern, glare etc., has a rough surface constituted so that, for a curved surface portion of the rough surface, having an approximately square area of 1 mmor larger and defined at an arbitrary position on the rough surface by using data for heights of the rough surface measured at predetermined intervals in the longitudinal and transverse directions, an average of slopes of the curved surface portion (θdegrees) of the rough surface, with respect to a base plane of the film, should be not less than 27 degrees and not more than 70 degrees at substantially any position on the light control film.
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