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Title:
FILAMENT HAVING LIGHT-EMITTING SEMICONDUCTOR CHIPS, LIGHTING MEANS HAVING SUCH A FILAMENT, AND METHOD FOR PRODUCING SUCH A FILAMENT
Document Type and Number:
WIPO Patent Application WO/2017/162821
Kind Code:
A3
Abstract:
The invention relates to a filament (100) having a plurality of light-emitting semiconductor chips (110) which are arranged on a carrier (130) and are electrically contacted. A scattering structure (105) is provided, which is configured to scatter light of the light-emitting semiconductor chips (110) and is achieved by means of a structuring of a surface of the filament (100). The invention also relates to a lighting means (200) having such a filament (100), to a piston (210) made of a transparent material and to an electrical contacting (220) which is connected to the filament (100) in an electrically conductive manner. The piston (210) is filled with a gas. The invention further relates to a method for producing such a filament (100), in which a converter (140) is produced by means of an injection-molding process using an injection-molding tool, and a structuring of a surface (141) of the converter (140) is achieved by the shape of the injection-molding tool. Furthermore, the invention relates to a method for producing a filament (100), in which a structuring of a lower side (131) of the carrier (130) is produced by means of a sawing, grinding, etching or laser structuring process.

Inventors:
SCHLERETH THOMAS (DE)
RACHKOVA ELENA (DE)
BESTELE MICHAEL (DE)
TANGRING IVAR (DE)
Application Number:
PCT/EP2017/056985
Publication Date:
November 30, 2017
Filing Date:
March 23, 2017
Export Citation:
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Assignee:
OSRAM OPTO SEMICONDUCTORS GMBH (DE)
International Classes:
F21K9/232; F21K9/60; H01L25/075; H01L33/50; H01L33/58; F21K9/235; F21K9/275; F21Y103/10; F21Y115/10; H01L33/00
Foreign References:
US20110058372A12011-03-10
EP2911194A12015-08-26
DE102014100584A12015-07-23
CN203273326U2013-11-06
US20090321759A12009-12-31
CN203895450U2014-10-22
US20140369036A12014-12-18
Attorney, Agent or Firm:
PATENTANWALTSKANZLEI WILHELM & BECK (DE)
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