Title:
LED LAMP FOCUSING DEVICE AND FOCUSING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/065685
Kind Code:
A1
Abstract:
A lamp focusing device and focusing method, the device comprising: a step/stepless switching and rotation mechanism. The step/stepless switching and rotation mechanism comprises: a lead screw (11), a bearing (12), a dial (16) and an adjusting knob (13) fixed on the bearing (12). A part on one end of the lead screw (11) extending into the adjusting knob (13) is provided with a first recess (113) and a second recess (114), and a first screw hole (131) is provided on a side of the adjusting knob (13), and a first glass bead screw (14) is disposed inside the first screw hole (131). Several circumferentially and uniformly distributed gear sockets (161) are disposed on the dial (16), and a second screw hole (132) is provided at the corresponding gear socket on the adjusting knob (13), and a second glass bead screw (15) is disposed inside the second screw hole (132). When the first glass bead screw (14) mates with the first recess (113), the second glass bead screw (15) presses against the gear socket (161), realizing a step focusing; when the first glass bead screw (14) mates with the second recess (114), the second glass bead screw (15) disengages the gear socket (161), realizing a stepless focusing. Also provided is a focusing method.
Inventors:
CHEN ZHIMAN (CN)
Application Number:
PCT/CN2014/092108
Publication Date:
May 06, 2016
Filing Date:
November 25, 2014
Export Citation:
Assignee:
GUANGZHOU YAJIANG PHOTOELECTRIC EQUIPMENT CO LTD (CN)
International Classes:
F21V14/06
Foreign References:
| CN204164949U | 2015-02-18 | |||
| CN203273716U | 2013-11-06 | |||
| CN201416845Y | 2010-03-03 | |||
| CN203309796U | 2013-11-27 | |||
| CN102635788A | 2012-08-15 | |||
| CN202691797U | 2013-01-23 |
Attorney, Agent or Firm:
GUANGZHOU ZHONGJUNXIONGJIE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
广州中浚雄杰知识产权代理有限责任公司 (CN)
广州中浚雄杰知识产权代理有限责任公司 (CN)
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