	US 11,885,482 B2
	Luminaire and illumination system
Pamela Topping, Belfast (GB); and Lloyd Crawford, Belfast (GB)
Assigned to SKYJOY LIMITED, Belfast (GB)
Appl. No. 17/766,964
Filed by SKYJOY LIMITED, Belfast (GB)
PCT Filed Oct. 9, 2020, PCT No. PCT/GB2020/052513 § 371(c)(1), (2) Date Apr. 6, 2022, PCT Pub. No. WO2021/069914, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 1914607 (GB), filed on Oct. 9, 2019.
Prior Publication US 2023/0151955 A1, May 18, 2023
Int. Cl. F21V 23/04 (2006.01); F21V 3/06 (2018.01); A61N 5/06 (2006.01); F21Y 105/18 (2016.01); F21Y 113/13 (2016.01); F21Y 115/10 (2016.01); F21W 131/208 (2006.01)

CPC F21V 23/0442 (2013.01) [A61N 5/0618 (2013.01); F21V 3/0625 (2018.02); F21V 23/0435 (2013.01); A61N 2005/0626 (2013.01); A61N 2005/0652 (2013.01); A61N 2005/0663 (2013.01); F21W 2131/208 (2013.01); F21Y 2105/18 (2016.08); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08)]

18 Claims

1. A biodynamic luminaire comprising a light source to provide an illumination output and which, in use, at least to some extent mitigates the detrimental effect of artificial lighting on an individual subject in an illuminated environment, the luminaire comprises one or more integral sensors which detect or determine one or more behaviors and/or one or more psychological states of the individual subject, and a control unit which changes the illumination output based on data received from or by the one or more integral sensors, in which the luminaire comprises a first set and a second set of light-emitting diodes (LEDs), in which the first and second LED sets have a different colour temperature, and in which the LEDs are selectively energisable by the control unit to provide a desired overall colour temperature of emitted light whereby, in use, to provide tuneable white light at a sufficient output to beneficially affect the individual subject's circadian rhythm in the illuminated environment.