Title:
LUMINOUS FLUX CONTROL MEMBER, LIGHT-EMITTING DEVICE, AND LUMINAIRE
Document Type and Number:
Japanese Patent JP2015141826
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a luminous flux control member capable of facilitating correction of the shape of a reflection surface.SOLUTION: A luminous flux control member of the present invention comprises an incident region and an emission region. The incident region includes a plurality of convex stripes each having an incident surface, a reflection surface, and a ridgeline. The convex stripes are disposed to connect two adjacent diagonals of a virtual quadrangle. At least one reflection surface is arranged in parallel to an extension direction of the convex stripes, and includes a plurality of split reflection surfaces reflecting the light incident on the incident surface toward the emission region; and one or two or more stepped surfaces disposed at positions between the two adjacent split reflection surfaces at dead angles with respect to a travel direction of the light incident on the incident surface.
Inventors:
SAITO TOMOHIRO
Application Number:
JP2014014453A
Publication Date:
August 03, 2015
Filing Date:
January 29, 2014
Export Citation:
Assignee:
ENPLAS CORP
International Classes:
F21V5/04; F21L4/00; G02B3/08; G02B19/00; G03B15/02; G03B15/05
Domestic Patent References:
| JP2013156335A | 2013-08-15 | |||
| JP2013178459A | 2013-09-09 |
Foreign References:
| WO2013024836A1 | 2013-02-21 |
Attorney, Agent or Firm:
Koichi Washida