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Title:
METHOD FOR MANUFACTURING MASTER, OPTICAL BODY, OPTICAL MEMBER, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/158933
Kind Code:
A1
Abstract:
[Problem] To provide a master with which it is possible to manufacture, with a greater area, an optical body in which diffracted light is suppressed. [Solution] A method for manufacturing a master, said method including: a step in which a bumpy microstructure, the bumps of which have an average period not exceeding the wavelength of visible light, is randomly formed in the circumferential direction and axial direction of a master body by irradiating a laser, which is modulated within a predetermined range by an aperiodic control signal, on the outer peripheral surface of the master body, which comprises a cylindrical or columnar substrate; a step in which an etching resist layer is formed on the outer peripheral surface of the master body; a step in which a bumpy macrostructure, the bumps of which have an average period that is greater than the wavelength of visible light, is formed on the etching resist layer; a step in which the bumpy microstructure and the bumpy macrostructure are superimposed and formed on the outer peripheral surface of the substrate by etching the etching resist and the master body.

Inventors:
KAJIYA SHUNICHI (JP)
Application Number:
PCT/JP2016/060074
Publication Date:
October 06, 2016
Filing Date:
March 29, 2016
Export Citation:
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Assignee:
DEXERIALS CORP (JP)
International Classes:
B29C33/38; B29C59/02; G02B1/111; G02B5/02
Domestic Patent References:
WO2009144970A12009-12-03
WO2009147858A12009-12-10
WO2014076983A12014-05-22
Foreign References:
JP2009128543A2009-06-11
JP2011026648A2011-02-10
JP2012061832A2012-03-29
JP2008304637A2008-12-18
JP2009128539A2009-06-11
Attorney, Agent or Firm:
KAMEYA, Yoshiaki et al. (JP)
Yoshiaki Kameya (JP)
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