US 12,338,976 B2
Lighting device
Kenta Watanabe, Osaka (JP); Shintaro Hayashi, Hyogo (JP); Takeru Sakamoto, Nara (JP); and Seiji Yoshimura, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 18/572,028
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Jun. 8, 2022, PCT No. PCT/JP2022/023085
§ 371(c)(1), (2) Date Dec. 19, 2023,
PCT Pub. No. WO2022/270308, PCT Pub. Date Dec. 29, 2022.
Claims priority of application No. 2021-105230 (JP), filed on Jun. 24, 2021.
Prior Publication US 2024/0310027 A1, Sep. 19, 2024
Int. Cl. F21V 15/01 (2006.01); F21V 31/00 (2006.01); F21Y 107/40 (2016.01)
CPC F21V 15/01 (2013.01) [F21V 31/005 (2013.01); F21Y 2107/40 (2016.08)] 13 Claims
OG exemplary drawing
 
1. A lighting device capable of illuminating in all directions, the lighting device comprising:
a case that includes a plurality of wall portions, each including a face in a polygonal shape, the plurality of wall portions including a first wall portion and a second wall portion different from the first wall portion;
a plurality of light-emitting elements that are provided in the plurality of wall portions and emit light toward the outside of the lighting device;
a controller that controls the plurality of light-emitting elements separately; and
a protective component without openings that is provided to cover a vertex portion of the case,
wherein the case:
is of an outer shape that is spherical or polyhedral; and
includes bent portions that are bent in the outer shape of the case,
the bent portions constitute at least three sides of the outer shape of the case,
one side of the first wall portion includes a first edge portion,
the first edge portion includes an engaging portion and a tabular piece,
one side of the second wall portion includes a second edge portion,
the first and second edge portions are in contact with each other,
the second edge portion includes an engaged portion configured to engage with the engaging portion of the first edge portion, and
the tabular piece of the first edge portion is configured to engage with the second edge portion.