Title:
LAMP
Document Type and Number:
WIPO Patent Application WO/2021/227237
Kind Code:
A1
Abstract:
Disclosed is a lamp. The lamp comprises a lamp tube (1) having a light source (12), and a lens assembly (2). The lens assembly (2) comprises a lens drum (21) and a focusing component (22); the focusing component (22) comprises a focusing ring (221), a lens fixing ring (222) and a lens (223); a spiral groove (2211) is provided in the inner surface of the focusing ring (221), and a convex rail (2221) is provided on the outer surface of the lens fixing ring (222); a strip-shaped through hole (211) extending in the axial direction of the lens drum (21) is provided in the lens drum (21); and the convex rail (2221) penetrates the strip-shaped through hole (211) and is in clearance fit with the spiral groove (2211). During focusing of the lamp, the focusing ring (221) is rotated, the spiral groove (2211) acts on the convex rail (2221), and finally the lens fixing ring (222) and the lens (223) are driven to move back and forth in the lens drum (21), such that the distance between the lens (223) and the light source (12) is adjusted, focusing is facilitated, and the focusing precision is more accurate.
Inventors:
GAO MEIQIN (CN)
Application Number:
PCT/CN2020/101739
Publication Date:
November 18, 2021
Filing Date:
July 13, 2020
Export Citation:
Assignee:
ACEVEL GD CO LTD (CN)
International Classes:
F21S8/00; F21V14/06; F21V15/02; F21V17/10
Foreign References:
| CN104006355A | 2014-08-27 | |||
| CN209540656U | 2019-10-25 | |||
| CN207925095U | 2018-09-28 | |||
| CN206093625U | 2017-04-12 | |||
| CN209688609U | 2019-11-26 | |||
| US4316237A | 1982-02-16 | |||
| JP2000149620A | 2000-05-30 |
Other References:
See also references of EP 4067730A4
Attorney, Agent or Firm:
SINO-CREATIVITY INTELLECTUAL PROPERTY LAW FIRM (CN)
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