Patent ID: 8016459

Claim:
An illuminating device comprising: a light source module for emitting light, the light source module comprising a reflecting unit and a plurality of light emitting diodes (LEDs) mounted on the reflecting unit, the reflecting unit comprising a plurality of strip-shaped grooves each extending along a first direction, the LEDs being mounted on the reflecting unit in the grooves; and an optical lens configured for adjusting the light emitted from the light source module, the optical lens comprising an array of lens units, each lens unit comprising a main body, a light diverging portion and a light converging portion, the main body comprising a light incident surface and a light emitting surface opposite to the light incident surface, the light diverging portion being configured for expanding a light field along the first direction, the light converging portion being configured for compressing a light field along a second direction, the light diverging portion and the light converging portion being formed on at least one of the light incident surface and the light emitting surface.