LIGHT FLUX CONTROLLING MEMBER, LIGHT-EMITTING DEVICE, SURFACE LIGHT SOURCE DEVICE AND DISPLAY APPARATUS
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May 14, 2015
app pub date -
Nov 7, 2014
filing date -
Nov 8, 2013
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Light flux controlling member (300) includes: first main surface (310) having first incidence surface (313) and second incidence surface (314); second main surface (320) having total reflection surface (321); and side surface (330) that outputs light reflected by total reflection surface (321). First incidence surface (313) is a recessed surface disposed at a center portion of first main surface (310). Second incidence surface (314) is a surface laterally extending from an opening edge of first incidence surface (313). Total reflection surface (321) is a substantially cone-shaped recessed surface having a vertex at a position that faces a vertex of first incidence surface (313).
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