Title:
OPTICAL FILM CURLING ANALYSIS METHOD AND ANALYSIS DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/111117
Kind Code:
A1
Abstract:
In the present invention, a support device is used to support a central part of a circular optical film, a measurement device disposed in a position shifted radially outward from the central part of the optical film is used to measure the distances between the measurement device itself and each location on a circle having the central part as the origin thereof, and curling information indicating the curling of the optical film is derived on the basis of the distances measured by the measurement device.
Inventors:
YAGI MINORU (JP)
NOMOTO HIROFUMI (JP)
SHIRAKO MIRAI (JP)
NOMOTO HIROFUMI (JP)
SHIRAKO MIRAI (JP)
Application Number:
PCT/JP2019/046359
Publication Date:
June 04, 2020
Filing Date:
November 27, 2019
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G01B11/24
Foreign References:
| JPS62203006A | 1987-09-07 | |||
| JPS61243311A | 1986-10-29 |
Attorney, Agent or Firm:
FUJIMOTO & PARTNERS (JP)
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