Title:
LIGHT DISTRIBUTION CONTROL MEMBER AND LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/217303
Kind Code:
A1
Abstract:
A light distribution control member (20) according to an embodiment includes a linear prism (22) provided on one surface (20b). The prism (22) includes: an arc part (22a) that projects in a direction away from the one surface (20b) in a cross-section intersecting with the extension direction of the prism (22); and linear parts (22b) that extend from the two ends of the arc part (22a) in directions away from each other.
Inventors:
SHIMAOKA REISHI (JP)
Application Number:
PCT/JP2017/021208
Publication Date:
December 21, 2017
Filing Date:
June 07, 2017
Export Citation:
Assignee:
MINEBEA MITSUMI INC (JP)
International Classes:
G02B5/02; F21V5/02; F21V5/04; G02B3/08; F21Y115/10
Foreign References:
| JPH11305011A | 1999-11-05 | |||
| JPH07230001A | 1995-08-29 | |||
| JP2005326819A | 2005-11-24 | |||
| US20100165603A1 | 2010-07-01 | |||
| JP2006171718A | 2006-06-29 | |||
| JP2009204781A | 2009-09-10 | |||
| JP2012533096A | 2012-12-20 | |||
| JP2009169004A | 2009-07-30 | |||
| JP2008033245A | 2008-02-14 |
Attorney, Agent or Firm:
TORANOMON INTELLECTUAL PROPERTY FIRM (JP)
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