Title:
LOW-REFLECTION FILM HAVING RANDOM CONCAVO-CONVEX STRUCTURE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2015197462
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a low-reflection film having a random concavo-convex structure, a high transmittance, and high transmission clarity, and to provide a manufacturing method therefor.SOLUTION: A low-reflection film of the present invention includes a concavo-convex surface structure having irregular heights and periods, the concavo-convex surface structure having an average pitch Sm and average height hm that satisfy expressions below, a flat portion that occupies no greater than 3% of the total area of the concavo-convex surface, and gently sloped portions with an aspect ratio of no greater than 0.5 that occupy no more than 30% of the total area. In the expressions, λ represents an optical wavelength, which is a central wavelength of 530 nm in the case of visible rays. (expressions 1) 0.2λhm/Sm>0.5.
Inventors:
MORI NAOYUKI
SHINTANI NAOTO
SHIMAMURA YUKIO
KANETANI YOSHIHARU
SHINTANI NAOTO
SHIMAMURA YUKIO
KANETANI YOSHIHARU
Application Number:
JP2014073635A
Publication Date:
November 09, 2015
Filing Date:
March 31, 2014
Export Citation:
Assignee:
SUNTECHOPT CO LTD
International Classes:
G02B1/11; B29C59/02
Attorney, Agent or Firm:
Global intellectual property corporation
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