US 11,668,439 B2
LED light distribution structure, light source module and lamp
Chaobo Liu, Suzhou (CN); Hongbo Wang, Suzhou (CN); and Qingjun Wei, Suzhou (CN)
Assigned to Opple Lighting Co., Ltd., Shanghai (CN); and Suzhou Opple Lighting Co., Ltd., Suzhou (CN)
Filed by OPPLE LIGHTING CO., LTD., Shanghai (CN); and SUZHOU OPPLE LIGHTING CO., LTD., Suzhou (CN)
Filed on Dec. 23, 2021, as Appl. No. 17/561,699.
Application 17/561,699 is a continuation of application No. PCT/CN2020/119239, filed on Sep. 30, 2020.
Claims priority of application No. 201910954428.2 (CN), filed on Oct. 9, 2019; and application No. 201921677858.6 (CN), filed on Oct. 9, 2019.
Prior Publication US 2022/0112989 A1, Apr. 14, 2022
Int. Cl. F21K 9/232 (2016.01); F21K 9/238 (2016.01); F21V 5/04 (2006.01); F21Y 115/10 (2016.01)
CPC F21K 9/232 (2016.08) [F21K 9/238 (2016.08); F21V 5/04 (2013.01); F21Y 2115/10 (2016.08)] 20 Claims
OG exemplary drawing
 
1. An LED light distribution structure, comprising: a ring-shaped light distribution element and a plurality of LED chips; wherein:
the ring-shaped light distribution element is provided with a light source cavity in a ring shape, and the light source cavity has a ring center and a center line surrounding the ring center in a ring shape;
the plurality of LED chips are arranged in a ring shape in the light source cavity, each of the LED chips comprises an LED and a chip substrate, and the LED is on the chip substrate; and
LEDs on all the LED chips are uniformly arranged along a ring-shaped wiring line, the ring-shaped wiring line is in a concentric ring with the center line, and the ring-shaped wiring line is located inside or outside of the center line,
wherein the chip substrate has a center, the LED is at the center or not at the center, and the center of the chip substrate is inside or outside the center line.