US 12,442,497 B2
Lighting apparatus
Huiwu Chen, Fujian (CN); Zongyuan Liu, Fujian (CN); Xiaobo Chen, Fujian (CN); Yongshu Zheng, Fujian (CN); and Cheng Luo, Fujian (CN)
Assigned to LEEDARSON LIGHTING CO., LTD., Fujian (CN)
Filed by LEEDARSON LIGHTING CO., LTD., Fujian (CN)
Filed on Mar. 4, 2025, as Appl. No. 19/069,284.
Claims priority of application No. 202420411841.0 (CN), filed on Mar. 4, 2024.
Prior Publication US 2025/0277568 A1, Sep. 4, 2025
Int. Cl. F21S 4/24 (2016.01); F21K 9/232 (2016.01); F21K 9/64 (2016.01); F21K 9/69 (2016.01); F21V 23/06 (2006.01); F21V 29/71 (2015.01); F21Y 105/12 (2016.01); F21Y 107/70 (2016.01); F21Y 109/00 (2016.01); F21Y 115/10 (2016.01)
CPC F21S 4/24 (2016.01) [F21K 9/232 (2016.08); F21K 9/64 (2016.08); F21K 9/69 (2016.08); F21V 23/06 (2013.01); F21V 29/713 (2015.01); F21Y 2105/12 (2016.08); F21Y 2107/70 (2016.08); F21Y 2109/00 (2016.08); F21Y 2115/10 (2016.08)] 20 Claims
OG exemplary drawing
 
1. A lighting apparatus, comprising:
a flexible substrate having an elongated area, wherein the elongated area is divided into a first band, a second band, a third band, and a fourth band along a Y-axis direction;
a plurality of first-type LED modules disposed on the first band, wherein the first-type LED modules are aligned in a row along an X-axis direction, the X-axis direction being parallel to a longitudinal edge of the elongated area;
a plurality of second-type LED modules disposed on the second band;
a plurality of third-type LED modules disposed on the third band;
a plurality of fourth-type LED modules disposed on the fourth band, wherein the first-type LED modules, the second-type LED modules, the third-type LED modules, and the fourth-type LED modules emit light having different optical parameters, wherein the Y-axis direction is perpendicular to the X-axis direction, wherein the first-type LED modules are substantially aligned with the fourth-type LED modules along the Y-axis, wherein the second-type LED modules are aligned with the third-type LED modules along the Y-axis, and wherein the first-type LED modules are offset from the second-type LED modules in the X-axis direction by a predetermined distance; and
a driver configured to convert an external power source to generate four driving currents respectively supplied to the first-type LED modules, the second-type LED modules, the third-type LED modules, and the fourth-type LED modules, wherein the driver is further configured to adjust a relative ratio of the four driving currents to control a mixed optical parameter of the emitted light.