Title:
LIGHT DIFFUSION FILM AND SURFACE LIGHT SOURCE USING SAME
Document Type and Number:
WIPO Patent Application WO/2007/029606
Kind Code:
A1
Abstract:
Disclosed is a light diffusion film comprising a base film which contains a light
diffusion element inside. This light diffusion film is provided with a rough
surface having a ratio between the maximum value Asmax and the minimum valum Asmin
of the average aspect ratio, namely Asmax/Asmin (anisotropic degree) of not
less than 1.1 on at least one side. This light diffusion film is excellent in luminance
uniformity and high luminance characteristics.
Inventors:
KIKUCHI AKIKAZU (JP)
TAKAHASHI HIROMITSU (JP)
TAKAHASHI KOZO (JP)
KANEKO TAKAYUKI (JP)
TAKAHASHI HIROMITSU (JP)
TAKAHASHI KOZO (JP)
KANEKO TAKAYUKI (JP)
Application Number:
PCT/JP2006/317301
Publication Date:
March 15, 2007
Filing Date:
September 01, 2006
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
KIKUCHI AKIKAZU (JP)
TAKAHASHI HIROMITSU (JP)
TAKAHASHI KOZO (JP)
KANEKO TAKAYUKI (JP)
KIKUCHI AKIKAZU (JP)
TAKAHASHI HIROMITSU (JP)
TAKAHASHI KOZO (JP)
KANEKO TAKAYUKI (JP)
International Classes:
G02B5/02; B29C55/02; G02F1/13357; B29L7/00; B29L11/00
Foreign References:
| JPH10123307A | 1998-05-15 | |||
| JP2004341244A | 2004-12-02 | |||
| JP2004087234A | 2004-03-18 | |||
| JP2002107510A | 2002-04-10 | |||
| JPH11160505A | 1999-06-18 | |||
| JP2001310410A | 2001-11-06 | |||
| JP2004004417A | 2004-01-08 | |||
| JPH1195013A | 1999-04-09 | |||
| JPH11183710A | 1999-07-09 |
Attorney, Agent or Firm:
IWAMI, Tomonori (TORAY INDUSTRIES INC., 1-1, Sonoyama 1-chom, Otsu-shi Shiga 58, JP)
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