US 12,292,580 B2
Optical module and medical laser device
Lei Cai, Xi'an (CN); and Xingsheng Liu, Xi'an (CN)
Assigned to FOCUSLIGHT TECHNOLOGIES INC., Xi'an (CN)
Appl. No. 17/912,395
Filed by FOCUSLIGHT TECHNOLOGIES INC., Xi'an (CN)
PCT Filed Aug. 11, 2020, PCT No. PCT/CN2020/108508
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2022/021476, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 202010757215.3 (CN), filed on Jul. 31, 2020.
Prior Publication US 2023/0136630 A1, May 4, 2023
Int. Cl. G02B 27/09 (2006.01); A61B 18/20 (2006.01)
CPC G02B 27/0927 (2013.01) [A61B 18/20 (2013.01); G02B 27/0916 (2013.01); G02B 27/0933 (2013.01); G02B 27/0961 (2013.01); G02B 27/0977 (2013.01); A61B 2018/20359 (2017.05); A61B 2018/20553 (2017.05)] 19 Claims
OG exemplary drawing
 
1. An optical module, comprising a first lens, a second lens and an array lens arranged in sequence along a main optical axis, wherein the first lens shapes a beam along a first direction of the main optical axis, the second lens shapes the beam along a second direction of the main optical axis, the array lens has an array arranged along the second direction of the main optical axis, and a laser beam enters the second lens after passing through the first lens, the second lens diffuses the laser beam along the second direction and converts the laser beam from a Gaussian distribution to a flat-top distribution in the second direction, and then the laser beam exits through the array lens, wherein the first direction and the second direction are perpendicular to each other.