Title:
LUMINOUS FLUX CONTROL MEMBER, LIGHT EMITTING DEVICE, SURFACE LIGHT SOURCE DEVICE, AND DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2022002203
Kind Code:
A
Abstract:
To provide a luminous flux control member that can more appropriately distribute light from a plurality of light emitting elements while improving handleability at the time of mounting by arranging the luminous flux control member on the plurality of light emitting elements.SOLUTION: A luminous flux control member 700 comprises a plurality of incidence units 310 for making light emitted from a plurality of light emitting elements incident thereon, and an emitting unit arranged between the plurality of incidence units 310, and for emitting the light incident on the plurality of incidence units 310 while guiding it. The plurality of incidence units 310 each comprises an incidence surface, and a first reflection surface 321 for reflecting the light incident on the incidence surface, in a direction along a board. The emitting unit comprises: a second emitting surface arranged so as to be opposed to the board, and for reflecting the light from the incidence units 310; a first emitting surface arranged so as to be opposed to the second emitting surface, and for emitting the light from incidence units 310; and an emission promotion part 340 for promoting the emission of the light traveling between the second emitting surface and the first emitting surface, from the first emitting surface.SELECTED DRAWING: Figure 18
Inventors:
MOMOI TAKURO
Application Number:
JP2020193507A
Publication Date:
January 06, 2022
Filing Date:
November 20, 2020
Export Citation:
Assignee:
ENPLAS CORP
International Classes:
F21S2/00; F21V5/00; F21V5/02; G02B5/02; G02F1/13357
Attorney, Agent or Firm:
Washeda International Patent Office
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