US 11,659,642 B1
Surgical lighting system co-illumination detection
Michael Hollopeter, Kirtland, OH (US); and Benjamin Yoder, University Heights, OH (US)
Assigned to American Sterilizer Company, Mentor, OH (US)
Filed by American Sterilizer Company, Mentor, OH (US)
Filed on Dec. 6, 2021, as Appl. No. 17/543,129.
Int. Cl. H05B 47/11 (2020.01); A61B 90/30 (2016.01); A61B 90/35 (2016.01); F21V 21/28 (2006.01); F21W 131/205 (2006.01); F21S 8/04 (2006.01)
CPC H05B 47/11 (2020.01) [A61B 90/30 (2016.02); A61B 90/35 (2016.02); F21S 8/046 (2013.01); F21V 21/28 (2013.01); F21W 2131/205 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for operating a lighting system having a first lighthead and a second lighthead distinct from the first lighthead, the second lighthead having associated therewith a light sensor configured to detect an intensity of visible light incident on the target surface in the region where the second lighthead is focused, the method comprising:
varying a characteristic of visible light emitted by the first lighthead according to a predefined profile;
fixing a characteristic of visible light emitted by the second lighthead;
detecting by the light sensor a characteristic of visible light incident on the target surface over a period of time;
comparing the characteristic of the light detected by the light sensor over the period of time to the characteristic of light defined in the predetermined profile; and
determining if the first and second lighthead are operating in a co-illumination state or an independent state based on the comparison.