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Patent Searching and Data


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:
A3
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 (2116-1404, e-Pyeonhansesang 31, Dongtansunhwan-daero 20-gil,,Hwaseong-si, Gyeonggi-do, 18484, KR)
HAM, Seung Woo (305 Taegwang Officetel 3-cha, 6 Beonyeong-ro 609beon-gil,Gunpo-si, Gyeonggi-do, 15813, KR)
Application Number:
KR2018/011288
Publication Date:
May 09, 2019
Filing Date:
September 21, 2018
Export Citation:
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Assignee:
FIRST OPTICS CO.,LTD (1327, Hyohaeng-ro,Hwaseong-si, Gyeonggi-do, 18383, KR)
International Classes:
F21V5/04; F21K9/69; F21V7/00; G02B19/00
Foreign References:
KR20130070440A2013-06-27
JP2009021189A2009-01-29
JP2012004095A2012-01-05
JP2011091022A2011-05-06
KR20150141220A2015-12-18
Attorney, Agent or Firm:
B&IP-JOOWON PATENT AND LAW FIRM (9th Floor, Construction Center Eonju-ro 711,,Gangnam-gu, Seoul, 06050, KR)
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