Title:
LIGHT-GUIDING PLATE AND MANUFACTURING METHOD OF LIGHT-GUIDING PLATE
Document Type and Number:
WIPO Patent Application WO/2013/168506
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a light-guiding plate that is large and thin, exhibits high light utilization efficiency, is capable of emitting light with little unevenness in terms of luminance and color, is capable of achieving a uniform luminance distribution or a middle and high luminance distribution, and can be inexpensively and easily manufactured, and a method for manufacturing the light-guiding plate. With this manufacturing method of a light-guiding plate, after a second layer is formed by means of injection molding by injecting a material into a mold (200a, 200b) in which an insert (206), the surface of which in contact with the second layer (62) having a surface roughness (Ra) of 25 - 125 µm, is placed, the insert is removed and a first layer (60) is formed by means of injection molding.
Inventors:
IWASAKI OSAMU (JP)
Application Number:
PCT/JP2013/060745
Publication Date:
November 14, 2013
Filing Date:
April 09, 2013
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
F21S2/00; F21V8/00; G02B6/00; G02F1/13357; F21Y101/02
Domestic Patent References:
| WO2012049952A1 | 2012-04-19 |
Foreign References:
| JP2012058480A | 2012-03-22 | |||
| JP2005258023A | 2005-09-22 | |||
| JP2011503771A | 2011-01-27 | |||
| JP2009224253A | 2009-10-01 | |||
| JP2003014938A | 2003-01-15 |
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
Mochitoshi Watanabe (JP)
Mochitoshi Watanabe (JP)
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