Spherical lighting device

A lighting device comprising:

• a light source configured to emit light as a light cone;
• an electronic circuit to control the light source;
• a wall with a shape that defines an enclosure surrounding the light source and the electronic circuit, the wall including at least a first area corresponding to an intersection with the light cone, and a second area complementary to the first area;
• a diffuser comprising a material diffusing light arranged inside the enclosure between the light source and the first area, the diffuser configured to direct part of the light by backscattering towards the second area;
• wherein the electronic circuit is placed in a first part of the enclosure as an upper part, the light cone being emitted from the light source to a second part of the enclosure as a lower part;
• and
• wherein the diffuser comprises a first part oriented perpendicular to the axis of revolution of the light cone and forming a first divergent lens, and a second part forming a second divergent lens, the second part having a shape of a flared truncated cone with its axis of revolution parallel to the axis of revolution of the light cone, wherein a larger diameter end is closest to the light source and a smaller diameter end is adjacent to the first part and surrounds the first part.