US 11,747,478 B2
Stage mapping and detection using infrared light
Koen Buys, Hofstade (BE); and Dennis Varian, Middleton, WI (US)
Assigned to Electronic Theatre Controls, Inc., Middleton, WI (US)
Filed by Electronic Theatre Controls, Inc., Middleton, WI (US)
Filed on May 15, 2020, as Appl. No. 16/874,897.
Claims priority of provisional application 62/848,125, filed on May 15, 2019.
Prior Publication US 2020/0363531 A1, Nov. 19, 2020
Int. Cl. H05B 47/13 (2020.01); G01S 7/481 (2006.01); G01S 17/894 (2020.01); G01S 17/89 (2020.01)
CPC G01S 17/89 (2013.01) [G01S 7/4817 (2013.01); G01S 17/894 (2020.01); H05B 47/13 (2020.01)] 12 Claims
OG exemplary drawing
 
1. A system for mapping a stage, the system comprising:
a lighting fixture including a visible light source and an infrared light source, the lighting fixture configured to at least partially illuminate the stage with structured infrared light in an infrared light mode;
a scanner configured to detect the structured infrared light on the stage; and
a controller connected to the lighting fixture and the scanner, the controller configured to:
turn on the visible light source in a visible light mode to allow a user to focus the lighting fixture,
turn off the visible light source and turn on the infrared light source in the infrared light mode to illuminate at least a portion of the stage with the structured infrared light, the visible light source being continuously off during a majority of the infrared light mode,
control the scanner to scan the structured infrared light on the portion of the stage,
receive a signal from the scanner as scan data corresponding to the structured infrared light on the portion of the stage that was scanned, and
translate the scan data into three-dimensional location data.