Title:
MANUFACTURING METHOD FOR OPTICAL SHEET AND MANUFACTURING METHOD FOR PLANAR LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/129609
Kind Code:
A1
Abstract:
This manufacturing method for an optical sheet (90) includes: a functional structure formation step (S3) wherein one or more functional structures (82) having a reflection function or a diffusion function are formed on at least one surface (95a) of a resin sheet (95); and a precision cutting step (S5) wherein one or more optical sheets (90) of an intended size are obtained by cutting the resin sheet, on which the one or more functional structures have been formed, by irradiating the resin sheet with a laser beam or by using a punching device.
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Inventors:
KUMASAWA HIROYUKI (JP)
NISHI KOJIRO (JP)
NISHI KOJIRO (JP)
Application Number:
PCT/JP2014/054244
Publication Date:
August 28, 2014
Filing Date:
February 17, 2014
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
F21S2/00; B23K26/00; F21V3/00; G02B6/00
Foreign References:
| JP2012252209A | 2012-12-20 | |||
| JP2009082962A | 2009-04-23 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Nakayama δΊ¨ (JP)
Nakayama δΊ¨ (JP)
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