Patent ID: 11923694
Assignee: LASERMOTIVE, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A laser system to pass laser light from a first location to a second location that is remote from the first location, the laser system including a guard beam emitter arranged to emit a guard beam toward a corresponding guard beam detector, the laser system including a non-transitory computer-readable storage medium having computer-executable instructions stored thereon that, when executed by a processor, cause the processor to:
store an optical intensity profile, the optical intensity profile defining guard beam light received by the corresponding guard beam detector over time;
detect a change in guard beam light received by the corresponding guard beam detector based on a comparison of current guard beam light received by the corresponding guard beam detector and values stored in the optical intensity profile;
store a plurality of additional optical intensity profiles, a first one of the plurality of additional optical intensity profiles corresponding to guard beam light received by the guard beam detector in the presence of a smaller object and a second one of the plurality of additional optical intensity profiles corresponding to guard beam light received by the guard beam detector in the presence of a larger object, wherein detecting the change in guard beam light includes determining a size of an object by comparing the current guard beam light with the first and second one of the plurality of additional optical intensity profiles; and
disable the laser light passed from the first location to the second location based on the detected change in guard beam light.