Patent ID: 7554752

Claim:
A lighting equipment comprising: a plurality of light-emitting units, each of the light-emitting units comprising: a light source, and a bulk-shaped lens body identified by a top surface, a bottom surface and a contour surface, implementing a well-shaped concavity in the inside of the lens body identified by a ceiling surface and a cylindrical sidewall portion in succession to the ceiling surface, the concavity being aligned to the top surface from the bottom surface along an optical axis of the lens body so as to install the light source, a distance between the ceiling surface of the concavity and the top surface along the optical axis is larger than a radius of curvature of the top surface; and a power supply unit connected respectively to the light-emitting units, configured to supply electric power to each of the light sources, wherein a gap is provided between the light source and the cylindrical sidewall portion.