Title:
OPTICAL FILM, SURFACE LIGHT EMITTING BODY, AND METHOD FOR PRODUCING OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2013/080794
Kind Code:
A1
Abstract:
An optical film that is provided with a plurality of aligned convex microlenses (10), each of which has a region α (11) and a region β (12), said region β forming the outer part of the convex shape of the microlens and positioned so as to cover the region α. This optical film is characterized in that: both the region α and the region β contain a resin, and the refractive index (n1) of the resin in the region α is higher than the refractive index (n2) of the resin in the region β; the region β contains fine particles, and if necessary, the region α contains fine particles, and the content (P1) of the fine particles contained in the region α is lower than the content (P2) of the fine particles contained in the region β; or the region α contains fine particles, and if necessary, the region β contains fine particles, and the content (P1) of the fine particles contained in the region α is higher than the content (P2) of the fine particles contained in the region β.
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Inventors:
OKUNO DAICHI (JP)
Application Number:
PCT/JP2012/079489
Publication Date:
June 06, 2013
Filing Date:
November 14, 2012
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
International Classes:
G02B3/00; B29C39/18; G02B5/02; H01L51/50; H05B33/02; B29L7/00; B29L11/00
Domestic Patent References:
WO2008093819A1 | 2008-08-07 | |||
WO2008069324A1 | 2008-06-12 |
Foreign References:
JP2007133196A | 2007-05-31 | |||
JP2008305590A | 2008-12-18 | |||
JP2011159632A | 2011-08-18 | |||
JPH10111537A | 1998-04-28 | |||
JP2008058494A | 2008-03-13 | |||
JP2011123204A | 2011-06-23 | |||
JP2009025774A | 2009-02-05 |
Other References:
See also references of EP 2787374A4
Attorney, Agent or Firm:
NAGAI MICHIO (JP)
Michio Nagai (JP)
Michio Nagai (JP)
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Claims:
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