Patent ID: 11943848
Assignee: SIGNIFY HOLDING B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A controller configured to control properties of light emitted from a light emitting device, the controller comprising:
a control device; and
a processing unit;
the control device being configured to enable a user to select a color point of the light emitted from the light emitting device in a color space of the light emitting device, the color point being defined based on a tint and a color temperature, wherein the selection of the color point is done via a single input provided to the control device,
the processing unit being configured to change the color point along a meandering curve allowing the user to adjust the color point of light emitted from the light emitting device based on the single input received via the control device, wherein the processing unit being configured to change the color point along said meandering curve extending along the black body locus (BBL) in accordance with the received single input,
wherein a half period of the meandering curve is in the range from 300 to 1000 K, in the range from 350 to 700 K, or in the range from 400 to 600 K such as 500 K, and wherein the amplitude of the meandering curve is at least 10 standard deviation color matching (SDCM), at least 15 SDCM, or at least 20 SDCM.