The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2018
Filed:
Jul. 08, 2014
Huizhou Very Light Source Technology Co., Ltd., Huizhou, Guangdong, CN;
Very Optoelectronics (Huizhou) Co., Ltd., Huizhou, Guangdong, CN;
Wenbo Ma, Guangdong, CN;
Qiurong Liao, Guangdong, CN;
HUIZHOU VERY LIGHT SOURCE TECHNOLOGY CO., LTD, Huizhou, CN;
VERY OPTOELECTRONICS (HUIZHOU) CO., LTD., Huizhou, CN;
Abstract
A LED lamp filament, comprising: a long strip-shaped substrate, a plurality of light-emitting units arranged on a first surface of the substrate and distributed along the extending direction of the substrate, and a light-transmittable fluorescent glue layer covering the first surface and the plurality of light-emitting units. A plurality of bulges are provided on at least one side of the substrate, and the bulges are distributed along the extending direction of the substrate; one part of light excited by the fluorescent glue layer and emitted from the light-emitting units emits out in a direction towards a second surface, opposite to the first surface, of the substrate from a space between adjacent bulges.