US Patent 7322712 Bottom-lighting module

The provided bottom-lighting module comprises a bezel, a protrusion and at least one lamp. The bezel has at least one aperture with a first circumference and a second circumference. The bezel comprises a main body and at least one inclined wall extending upward from an edge of the main body. The protrusion is formed on the outer side of the bezel corresponding to the at least one aperture. Part of the circumference of the protrusion corresponds to the first circumference of the at least one aperture. At least one lamp is disposed on the main body of the bezel.