US 11,885,481 B2
LED lighting device
Mingbin Wang, Jiaxing (CN); Zhichao Zhang, Jiaxing (CN); Tao Jiang, Jiaxing (CN); Chen-kun Chen, Jiaxing (CN); and Dongmei Zhang, Jiaxing (CN)
Assigned to JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD, Zhejiang (CN)
Appl. No. 18/023,002
Filed by JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD, Jiaxing (CN)
PCT Filed Aug. 27, 2021, PCT No. PCT/CN2021/115036
§ 371(c)(1), (2) Date Feb. 24, 2023,
PCT Pub. No. WO2022/048501, PCT Pub. Date Mar. 10, 2022.
Claims priority of application No. 202010907587.X (CN), filed on Sep. 2, 2020; application No. 202010919457.8 (CN), filed on Sep. 4, 2020; application No. 202010965610.0 (CN), filed on Sep. 15, 2020; application No. 202011054633.2 (CN), filed on Sep. 30, 2020; application No. 202011136498.6 (CN), filed on Oct. 22, 2020; application No. 202011202551.8 (CN), filed on Nov. 2, 2020; application No. 202011403825.X (CN), filed on Dec. 4, 2020; application No. 202011435260.3 (CN), filed on Dec. 10, 2020; application No. 202110021012.2 (CN), filed on Jan. 8, 2021; application No. 202110097468.7 (CN), filed on Jan. 25, 2021; and application No. 202110382561.2 (CN), filed on Apr. 9, 2021.
Prior Publication US 2023/0304651 A1, Sep. 28, 2023
Int. Cl. F21V 23/00 (2015.01); F21V 7/09 (2006.01); F21V 13/04 (2006.01); F21V 23/02 (2006.01); F21S 8/04 (2006.01); F21Y 115/10 (2016.01)
CPC F21V 23/004 (2013.01) [F21S 8/04 (2013.01); F21V 7/09 (2013.01); F21V 13/04 (2013.01); F21V 23/023 (2013.01); F21Y 2115/10 (2016.08)] 20 Claims
OG exemplary drawing
 
1. An LED illumination device, comprising:
a light source carrier, the light source carrier comprising a base, an accommodating space being formed on the base;
a light emitting unit, the light emitting unit comprising a light emitter and a lamp board, the lamp board being fixed to the light source carrier; and
an optical member, the optical member covering the light emitting unit or at least a portion of the optical member covering the light emitting unit, wherein
the light emitting unit and the optical member disposed in the accommodating space, the light emitting unit and the optical member being within a range defined by the accommodating space;
the light emitting unit provided with the optical member and an area of a front surface of the base covered by the optical members is not greater than 10% of a total area of the front surface of the base; and
the optical member comprises a first light distribution unit and a second light distribution unit, at least 70% of a luminous flux generated by the light emitter in operation is directly emitted from the LED illumination device through the second light distribution unit, a portion of the luminous flux generated by the light emitter in operation is emitted through the first light distribution unit, and at least a portion of the light emitted through the first light distribution unit is emitted to a surface of the base.