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Title:
LIGHT-DIFFUSING LAMP SHADE AND PANEL LAMP HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2019/056660
Kind Code:
A1
Abstract:
A light-diffusing lamp shade (100) comprises a base wall (110) and a flange (130) surrounding the base wall (110). The lamp shade (100) further comprises an optical protrusion (120) provided at the base wall (110). The optical protrusion (120) is used to abut against a light-emitting assembly of a lighting fixture. The lamp shade (100) has a cavity (140) for receiving light reflected by the optical protrusion (120). The cavity (140) is arranged between the optical protrusion (120) and the flange (130). The lamp shade (100) is applied in a panel lamp. The optical protrusion (120) can effectively reduce light speckles around the panel lamp, increase uniformity and a coverage area of light emitted by the panel lamp, and maximize energy efficiency of the light.

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Inventors:
LI LIHUA (CN)
WANG BAOFENG (CN)
Application Number:
PCT/CN2018/071833
Publication Date:
March 28, 2019
Filing Date:
January 09, 2018
Export Citation:
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Assignee:
VITAL LIGHTING CO LTD (CN)
International Classes:
F21V3/02; F21S8/00
Foreign References:
CN104132308A2014-11-05
CN203298127U2013-11-20
CN102072441A2011-05-25
CN105473931A2016-04-06
CN204611450U2015-09-02
CN203298121U2013-11-20
CN203375298U2014-01-01
JP2016081782A2016-05-16
Other References:
See also references of EP 3521693A4
Attorney, Agent or Firm:
GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE et al. (CN)
Download PDF:
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