US 12,392,658 B2
In-motion laser beam analysis and analysis at field of view extremities for high-speed laser motion systems
Jacob C. Hay, Columbus, OH (US); Ron Aman, Columbus, OH (US); and Stanley L. Ream, Columbus, OH (US)
Filed by Edison Welding Institute, Inc., Columbus, OH (US)
Filed on May 8, 2023, as Appl. No. 18/144,411.
Claims priority of provisional application 63/339,645, filed on May 9, 2022.
Prior Publication US 2024/0377248 A1, Nov. 14, 2024
Int. Cl. G01J 1/42 (2006.01); B22F 10/28 (2021.01); B22F 10/31 (2021.01); B22F 12/20 (2021.01); B22F 12/70 (2021.01); B22F 12/90 (2021.01); B23K 26/70 (2014.01); B29C 64/268 (2017.01); B29C 64/393 (2017.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); G01J 1/02 (2006.01); G01J 1/04 (2006.01); G01K 17/00 (2006.01)
CPC G01J 1/4257 (2013.01) [B22F 10/28 (2021.01); B22F 10/31 (2021.01); B22F 12/90 (2021.01); B23K 26/702 (2015.10); B23K 26/705 (2015.10); B29C 64/268 (2017.08); B29C 64/393 (2017.08); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); G01J 1/4228 (2013.01); G01K 17/003 (2013.01); B22F 12/20 (2021.01); B22F 12/70 (2021.01); G01J 2001/0257 (2013.01); G01J 1/0271 (2013.01); G01J 1/0425 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A system for analyzing laser beam characteristics at field of view extremities or other selected locations in high-speed laser motion systems, wherein the high-speed laser motion systems comprise a laser that generates a non-stationary laser beam and a build platform positioned at a predetermined location relative to the non-stationary laser beam, comprising:
(a) a known or pre-defined field of view of the laser, wherein the laser beam characteristics are known or determined at a center location of the field of view; and
(b) a plurality of pin-hole sensors mounted at the field of view extremities such that each pin-hole sensor is positioned to receive the laser light generated by the non-stationary laser beam,
(i) wherein each pin-hole sensor measures the laser beam characteristics at the field of view extremities, and
(ii) wherein differences between the laser beam characteristics at the center location and the laser beam characteristics at the field of view extremities are captured and accounted for in the high-speed laser motion system during processing, and wherein one or more adjustments in processing are made based on the differences.