Title:
VARIFOCAL STRUCTURE, LAMP BASE AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/020105
Kind Code:
A1
Abstract:
A varifocal structure, a lamp base (110) and an illumination device (100). The varifocal structure comprises a light source module (3), a first sleeve (5), a second sleeve (7), and a lens (6) and a limiting element (2) which are fixedly connected to the first sleeve (5). The second sleeve (7) and the first sleeve (5) are coaxially arranged, the second sleeve (7) is provided with several screw slide slots (71), the first sleeve (5) is provided with several slide structures (51), and the slide structures (51) are connected to the screw slide slots (71). The light source module (3) has a fixed position, and the lens (6) is axially opposite to the light source module (3). The second sleeve (7) can rotate in a circumferential direction and enable the screw slide slots (71) to push the slide structures (51) to move in an axial direction, and the slide structures (51) in turn drive the first sleeve (5) and the lens (6) to move in the axial direction and change the distance to the light source module (3). According to the varifocal structure, the distance between the lens (6) and the light source module (3) is adjusted by means of rotating the second sleeve (7) to drive the first sleeve (5) to move in the axial direction, so as to adjust the center light intensity of emergent light from the varifocal structure and the center brightness irradiated onto a target object, thereby improving the operation performance of the illumination device (100).
Inventors:
DENG SHITAO (CN)
WANG YUEPING (CN)
FENG XUEJUN (CN)
WANG YUEPING (CN)
FENG XUEJUN (CN)
Application Number:
PCT/CN2019/097134
Publication Date:
January 30, 2020
Filing Date:
July 22, 2019
Export Citation:
Assignee:
SUZHOU OPPLE LIGHTING CO LTD (CN)
OPPLE LIGHTING CO LTD (CN)
OPPLE LIGHTING CO LTD (CN)
International Classes:
F21V14/06; F21V5/04
Foreign References:
CN208475253U | 2019-02-05 | |||
CN207635166U | 2018-07-20 | |||
CN207635166U | 2018-07-20 | |||
CN201513729U | 2010-06-23 | |||
CN104033848A | 2014-09-10 | |||
CN202647604U | 2013-01-02 | |||
CN202082822U | 2011-12-21 | |||
US20180080634A1 | 2018-03-22 |
Attorney, Agent or Firm:
CO-HORIZON INTELLECTUAL PROPERTY INC. (CN)
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