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:
Aug. 30, 2022
Filed:
May. 15, 2018
Nippon Electric Glass Co., Ltd., Shiga, JP;
Toshiyuki Kajioka, Otsu, JP;
Koji Ikegami, Otsu, JP;
Nippon Electric Glass Co., Ltd., Shiga, JP;
Abstract
The present invention addresses the problem of providing a transparent product which has an anti-glare surface having a surface shape which makes it possible to lower the haze value thereof and to obtain an excellent glare-suppressing effect. The transparent product has a transparent substrateequipped with an anti-glare surface. The surface shape of the anti-glare surface is shaped in a manner such that the ratio (r/r) of the autocorrelation length (r), which is the minimum value of the distance r at which the autocorrelation function g(r) represented by formula (1) is 0, to the autocorrelation length (r), which is the minimum value of the distance r at which the autocorrelation function g(r) is 0.2, is 2 or higher. The autocorrelation function g(r) is obtained by converting the autocorrelation function g(t, t) obtained by normalizing the surface shape z(x, y) of the antiglare surface to polar coordinates (t=r cos Φ, t=r sin Φ), and averaging the angle direction.