US 12,085,261 B2
Luminaire
Meiqin Gao, Guangzhou (CN)
Assigned to ACEVEL (GD) CO., LTD., Guangzhou (CN)
Appl. No. 17/789,710
Filed by ACEVEL (GD) CO., LTD., Guangdong (CN)
PCT Filed Jul. 13, 2020, PCT No. PCT/CN2020/101739
§ 371(c)(1), (2) Date Jun. 28, 2022,
PCT Pub. No. WO2021/227237, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 202020823135.9 (CN), filed on May 15, 2020.
Prior Publication US 2023/0060126 A1, Mar. 2, 2023
Int. Cl. F21V 14/06 (2006.01); F21V 17/12 (2006.01); F21V 19/02 (2006.01)
CPC F21V 14/06 (2013.01) [F21V 17/12 (2013.01); F21V 19/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A luminaire, comprising a lamp barrel having a light source and a lens assembly detachably connected with the lamp barrel;
the lens assembly comprises a lens barrel detachably connected with the lamp barrel and a focusing member assembled on the lens barrel;
the focusing member comprises a focusing ring sheathed on the lens barrel and rotatable on the lens barrel, a lens fixing ring installed in the lens barrel and movable forward and backward, and a lens installed in the lens fixing ring;
a spiral groove is provided on an inner surface of the focusing ring, and a projected rail is provided on an outer surface of the lens fixing ring;
a bar shaped through hole extending along an axial direction of the lens barrel is provided on the lens barrel; and
the projected rail passes through the bar shaped through hole and is mated with the spiral groove by clearance fit, wherein:
a boss projecting radially is provided on an outer ring surface of the lens fixing ring, and the projected rail is provided on the boss; and
the boss passes through the bar shaped through hole and is mated with the bar shaped through hole by clearance fit.