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Title:
DIFFUSION ELEMENT, OPTICAL ELEMENT, LIGHT-EMITTING DEVICE, AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/157210
Kind Code:
A1
Abstract:
This diffusion element comprises: a transmission member formed using a member that causes light to pass therethrough; and a square column-shaped laminate body in which at least two types of media having different refractive indexes are laminated. The laminate body is arranged upon the transmission member such that the upper surface of the transmission member and the laminate surface are parallel.

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Inventors:
OHNO YUJI (JP)
IMAI MASAO (JP)
SUZUKI NAOFUMI (JP)
TOMIYAMA MIZUHO (JP)
Application Number:
PCT/JP2013/002315
Publication Date:
October 24, 2013
Filing Date:
April 03, 2013
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
B32B7/023; G02B5/02; F21V3/00; G02B1/02; G02B5/00; G02B5/30; G02F1/13; G03B21/00; G03B21/14
Foreign References:
JP2008268861A2008-11-06
JPH11174232A1999-07-02
JP2008096556A2008-04-24
JP2012141593A2012-07-26
JP2005018008A2005-01-20
Attorney, Agent or Firm:
SHIMOSAKA, NAOKI (JP)
Naoki Shimosaka (JP)
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