Title:
LUMINOUS FLUX CONTROL MEMBER AND LIGHT-EMITTING DEVICE USING LUMINOUS FLUX CONTROL MEMBER
Document Type and Number:
WIPO Patent Application WO/2019/059726
Kind Code:
A2
Abstract:
The present invention relates to a luminous flux control member and, more particularly, to a luminous flux control member for uniformly dispersing light emitted from a light emitting unit in an outward direction, and a light emitting device using a luminous flux control member. Disclosed, in the present invention, is a luminous flux control member (100) having: a concave portion (110) on which light from a light source (200) is incident; and a light emitting surface (120) that forms the luminous flux control member (100) together with the concave portion (110) and emits the light from the light source (200) in an outward direction, wherein the luminous flux control member (100) has the bottom surface (S) formed with one or more light reflection parts (130) for reflecting the light, which is reflected from the light emitting surface (120) toward the luminous flux control member (100), so as to be uniformly dispersed in an upward direction of the luminous flux control member (100).
Inventors:
YOO SEUNG BUM (KR)
HAM SEUNG WOO (KR)
HAM SEUNG WOO (KR)
Application Number:
PCT/KR2018/011288
Publication Date:
March 28, 2019
Filing Date:
September 21, 2018
Export Citation:
Assignee:
FIRST OPTICS CO LTD (KR)
International Classes:
F21V5/04; F21K9/69; F21V7/00; G02B19/00
Attorney, Agent or Firm:
B&IP-JOOWON PATENT AND LAW FIRM (KR)
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