CPC H01S 5/0651 (2013.01) [H01S 5/005 (2013.01); H01S 5/0265 (2013.01); H01S 5/0607 (2013.01); H01S 5/0683 (2013.01); H01S 5/18302 (2013.01); H01S 5/18388 (2013.01); G01S 7/484 (2013.01); G01S 7/4815 (2013.01); G02B 3/0043 (2013.01); H01S 5/423 (2013.01)] | 13 Claims |
1. A light source module comprising:
a light source comprising at least one vertical cavity surface-emitting laser, which is configured to transfer light through N (N being a natural number equal to or greater than 1) apertures;
at least one collimator lens through which light emitted by the light source passes; and
a driving device configured to make the collimator lens move,
wherein the at least one vertical cavity surface-emitting laser comprises divided regions, and an intensity of a beam is controlled according to a predetermined far-distance mode or near-distance mode,
wherein the driving device causes, in the far-distance mode, a high-density spot beam to be outputted, the working distance from the at least one vertical cavity surface-emitting laser to a collimator lens to be fixed, and a movement on a two-dimensional plane of the x-axis and the y-axis to be made, and
wherein the driving device causes, in the near-distance mode, a blurred homogeneous beam to be outputted by adjusting the working distance prefixed in far-distance mode in a light path direction.
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