SYSTEM FOR IDENTIFYING SURFACE SHAPE OF ISOTROPIC LIGHT DIFFUSION MAT FILM HAVING FUNCTION BY WHICH LIGHT IS REFRACTED AND DIFFUSED DUE TO RANDOM THREE-DIMENSIONAL SURFACE SHAPE

Title:

SYSTEM FOR IDENTIFYING SURFACE SHAPE OF ISOTROPIC LIGHT DIFFUSION MAT FILM HAVING FUNCTION BY WHICH LIGHT IS REFRACTED AND DIFFUSED DUE TO RANDOM THREE-DIMENSIONAL SURFACE SHAPE

Document Type and Number:

Japanese Patent JP2013174698

Kind Code:

A

Abstract:

To emboss a surface of a glass substrate or a transparent resin film sheet and the like, and evaluate the surface shape of a product provided with light diffusion property.

A system for identifying the surface shape of an isotropic light diffusion mat film having a function by which light is refracted and diffused due to a random three-dimensional surface shape includes: a three-dimensional surface shape measurement part for setting a prescribed reference plane (XY-plane) on the film surface, virtually dividing the XY-plane into a grid shape at constant intervals (Pxy) both in x- and y-directions, measuring the height of a grid intersection point (i, j) at a predetermined pitch (Pz), and storing the height as height data of the grid intersection point (i, j); and a histogram generation part for calculating a histogram of inclination angles of minute regions by using the height data.

Inventors:

KOIDE KOJI
OZAWA KISHIN

Application Number:

JP2012038608A

Publication Date:

September 05, 2013

Filing Date:

February 24, 2012

Export Citation:

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Assignee:

MITSUBISHI GAS CHEMICAL CO
MGC FILSHEET CO LTD

International Classes:

G02B5/02; F21V3/00; G02F1/13357

Domestic Patent References:

JP2011248289A	2011-12-08
JP2007187952A	2007-07-26

Attorney, Agent or Firm:

Hiroshi Kobayashi
Kyoei Sugiyama
Taro Ushio
Yasuhito Suzuki

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