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Patent Searching and Data


Title:
BULB TYPE LIGHT SOURCE
Document Type and Number:
WIPO Patent Application WO/2019/098577
Kind Code:
A1
Abstract:
A bulb type light source comprises: a light transmitting globe; and at least one light-emitting device filament provided in the globe. The light-emitting device filament comprises: a substrate having n flat portions and n-1 bent portions provided between the flat portions, wherein n is a natural number of 2 or more; a plurality of light-emitting device chips provided on one side of the flat portions; a phosphor layer covering the light-emitting device chips and converting the wavelength of light from the light-emitting device chips; and connection wiring provided on the one side and electrically connecting the light-emitting device chips between adjacent light-emitting device chips.

Inventors:
PARK, Jae Hyun (97-11, Sandan-ro 163beon-gil Danwon-gu,Ansan-si, Gyeonggi-do, 15429, KR)
LEE, Seong Jin (97-11, Sandan-ro 163beon-gil Danwon-gu,Ansan-si, Gyeonggi-do, 15429, KR)
LEE, Jong Kook (97-11, Sandan-ro 163beon-gil Danwon-gu,Ansan-si, Gyeonggi-do, 15429, KR)
Application Number:
KR2018/013157
Publication Date:
May 23, 2019
Filing Date:
November 01, 2018
Export Citation:
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Assignee:
SEOUL SEMICONDUCTOR CO., LTD. (97-11, Sandan-ro 163beon-gil Danwon-gu,Ansan-si, Gyeonggi-do, 15429, KR)
International Classes:
F21K9/235; F21K9/237; F21K9/238; F21K9/64; F21Y115/10
Foreign References:
JP2015038853A2015-02-26
US20140056002A12014-02-27
US20110163683A12011-07-07
JP2011249235A2011-12-08
JP2012142258A2012-07-26
Attorney, Agent or Firm:
LEE, Ki Sung (602-ho, IS Biz Tower 147 Seongsui-ro,Seongdong-gu, Seoul, 04795, KR)
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