Patent ID: 9686839
Date: 2017-06-20
CPC Classifications: F21V,F21Y,G02B,H05B

Claim:
1. A lighting apparatus, comprising: a structured light generation unit comprising plural light sources, plural collimating lenses and an optical element group, wherein the collimating lenses are arranged between the light sources and the optical element group, after plural light beams from the corresponding light sources are collimated by the corresponding collimating lens and then passing through the optical element group, a first structured light pattern corresponding to a first light source of the plural light sources is projected on a first position of a projection surface and a second structured light pattern corresponding to a second light source of the plural light sources is projected on a second position of the projection surface, wherein the first position and the second position are different; and a controlling unit in communication with the structured light generation unit, wherein the controlling unit controls the first light source and the second light source to emit the light beams according to a time sequence, so that the first structured light pattern and the second structured light pattern are projected on the projection surface according to the time sequence.