US 11,843,221 B2
Light source module for emitting high density beam and method for controlling the same
Jun Youb Lee, Gyeonggi-do (KR); Young Gyu Kang, Gyeonggi-do (KR); and Jeong Hwa Seo, Gyeonggi-do (KR)
Assigned to NAMUGA, CO., LTD.
Filed by Namuga, Co., Ltd., Gyeonggi-do (KR)
Filed on Nov. 27, 2020, as Appl. No. 17/105,725.
Claims priority of application No. 10-2020-0038379 (KR), filed on Mar. 30, 2020; application No. 10-2020-0046634 (KR), filed on Apr. 17, 2020; application No. 10-2020-0055789 (KR), filed on May 11, 2020; application No. 10-2020-0055790 (KR), filed on May 11, 2020; application No. 10-2020-0055791 (KR), filed on May 11, 2020; application No. 10-2020-0066785 (KR), filed on Jun. 3, 2020; application No. 10-2020-0125935 (KR), filed on Sep. 28, 2020; application No. 10-2020-0125947 (KR), filed on Sep. 28, 2020; application No. 10-2020-0126458 (KR), filed on Sep. 29, 2020; application No. 10-2020-0134149 (KR), filed on Oct. 16, 2020; and application No. 10-2020-0134976 (KR), filed on Oct. 19, 2020.
Prior Publication US 2021/0305775 A1, Sep. 30, 2021
Int. Cl. H01S 5/065 (2006.01); H01S 5/00 (2006.01); H01S 5/06 (2006.01); H01S 5/0683 (2006.01); H01S 5/026 (2006.01); H01S 5/183 (2006.01); G02B 3/00 (2006.01); G01S 7/484 (2006.01); G01S 7/481 (2006.01); H01S 5/42 (2006.01)
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
OG exemplary drawing
 
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.