Patent ID: 8690387

Claim:
A lamp module, comprising: a main body having a central region; and a plurality of light emitting diodes disposed on the main body, wherein the light emitting diodes comprise at least one first light emitting diode disposed within the central region of the main body, and each light emitting diode emits a light to an illuminated region and respectively forms a corresponding light region on the illuminated region; wherein the light regions formed on the illuminated region by the light emitted by adjacent light emitting diodes are at least partially overlapped, and the light emitting diodes emit light at the same time so that the luminance at the part of the illuminated region closer to a central portion is higher than the luminance at the part farther away from the central portion; wherein the light emitting diodes further comprise a plurality of second light emitting diodes disposed on the part of the main body near the edge of the main body and located outside the first light emitting diodes, and a first light-distribution full angle of the light emitted by any first light emitting diode is smaller than a second light-distribution full angle of the light emitted by any second light emitting diode.