Luminaire optical device color compensation
AssigneeRobe Lighting s.r.o.
InventorsPavel Jurik, Jan Zamecnik, Jan Vilem, Josef Valchar
Life of this patent
Estimating the term…
Abstract
A luminaire including an LED light source, a plurality of color filters, an optical device, and a control system is provided. In response to receiving an optical device setting value via a data link, the control system moves the optical device according to the setting value, calculates modified positions for one or more of the color filters based on an effect of the optical device on the color of the light beam of the luminaire, and causes the one or more color filters to move to their modified color filter positions, in order to reduce the effect of the optical device on a beam color emitted by the luminaire.
Claims18
A luminaire, comprising:
- a light-emitting diode (LED) light source configured to emit a white light beam;
- a plurality of color filters configured to receive the white light beam and emit a colored light beam;
- an optical device configured to receive the colored light beam, modify the colored light beam, and emit a modified light beam;
- and
- a control system electrically coupled to a data link, the plurality of color filters, and the optical device, the control system configured to receive via the data link an optical device setting value and in response:
- cause the optical device to move based on the optical device setting value;
- determine a target color defined by Correlated Color Temperature (CCT) and Duv control channel values received via the data link;
- determine a color filter position for one or more color filters of the plurality of color filters based on the target color and the optical device setting value;
- and
- for each of the one or more color filters, cause the color filter to move to the color filter position.
A luminaire, comprising:
- a light-emitting diode (LED) light source configured to emit a white light beam;
- a plurality of color filters configured to receive the white light beam and emit a colored light beam;
- an optical device configured to receive the colored light beam, modify the colored light beam, and emit a modified light beam, wherein the optical device is a gobo, a prism, a frost filter, or a zoom lens system;
- and
- a control system electrically coupled to a data link, the plurality of color filters, and the optical device, the control system configured to receive via the data link an optical device setting value and in response:
- cause the optical device to move based on the optical device setting value;
- calculate a numeric value for a color change associated with the optical device setting value by calculating a position change value for the at least one color filter, the position change value based on the optical device setting value and CCT and Duv control channel values received via the data link;
- for at least one color filter of the plurality of color filters:
- calculate a modified color filter position based on the position change value and a current color filter position of the color filter;
- and
- cause the color filter to move to the modified color filter position.
Dependencies are inferred from the claim text.