US 11,947,145 B2
Stage light fixture with split light mixing device
Weikai Jiang, Guangzhou (CN)
Assigned to GUANGZHOU HAOYANG ELECTRONIC CO., LTD., Guangdong (CN)
Filed by Guangzhou Haoyang Electronic Co., Ltd., Guangzhou (CN)
Filed on Dec. 30, 2022, as Appl. No. 18/091,851.
Application 18/091,851 is a continuation of application No. PCT/CN2022/102654, filed on Jun. 30, 2022.
Claims priority of application No. 202122871943.X (CN), filed on Nov. 23, 2021; application No. 202221023098.9 (CN), filed on Apr. 29, 2022; and application No. 202221330142.0 (CN), filed on May 31, 2022.
Prior Publication US 2023/0161091 A1, May 25, 2023
Int. Cl. F21V 8/00 (2006.01); F21V 9/40 (2018.01); F21W 131/406 (2006.01)
CPC G02B 6/0008 (2013.01) [F21V 9/40 (2018.02); F21W 2131/406 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A stage light fixture with a split light mixing device, comprising
a light source for generating a light beam; and
a light mixing device for reflecting the light beam at least one time, which comprises a light guide with a gradually changing cross-sectional area and having a light output surface and a light incoming surface, the light beam transmitted from the light incoming surface to the light output, and a light beam homogenizer for receiving the light beam emitted from the light output surface of the light guide,
wherein the light beam homogenizer and the light guide are independent of each other, and a cross-sectional area of the light beam homogenizer is at least 1.1 times of a cross-sectional area of the light output surface, and
the stage light fixture further comprises a holder for clamping and fixing the light guide, and a cover fastened to an end of the holder away from the light source, which cover is configured to press the light beam homogenizer tightly to closely attach to the light output surface of the light guide.