US 12,251,274 B2
Systems and methods for targeted spectral illumination
Wojciech Timoszyk, Flower Mound, TX (US); Sean Hastings, Flower Mound, TX (US); Robert York, Lantana, TX (US); and Leif Jacobi, Tuttlingen (DE)
Assigned to Stryker Corporation, Portage, MI (US)
Filed by Stryker Corporation, Kalamazoo, MI (US)
Filed on Jul. 7, 2020, as Appl. No. 16/922,770.
Claims priority of provisional application 62/871,586, filed on Jul. 8, 2019.
Prior Publication US 2021/0007824 A1, Jan. 14, 2021
Int. Cl. A61B 90/35 (2016.01)
CPC A61B 90/35 (2016.02) 28 Claims
OG exemplary drawing
 
19. A surgical light for illuminating a target with light that has a reduced contribution of a single spectral range of the visible spectrum, comprising:
a first light source configured to emit light having a first spectrum that includes the single spectral range of the visible spectrum;
a second light source configured to emit light having a second spectrum that includes the first spectrum except for the single spectral range of the visible spectrum; and
a controller configured to simultaneously activate the first and second light sources for illuminating the target with light that has a reduced contribution of light in the single spectral range of the visible spectrum relative to white light,
wherein the controller is configured to switch from a first mode in which the first and second light sources are simultaneously activated to a second mode in which the second light source is deactivated, and to control the first and second light sources to provide the same illuminance at the target in both the first and second modes.