FIELD: electricity.
SUBSTANCE: system to control LED lamp colour comprises a LED controller (58); multiple LED channels (60), in process of work connected with the LED controller (58). Each of many LED channels (60) comprises a channel switch (62) connected in series with at least one shunted LED circuit (83). Besides, the shunted LED circuit (83) comprises a shunt switch (68), connected in parallel with a LED source (80). The LED controller (58) determines, whether the LED source (80) is in the control range with feedback, saves measured values of optical flow for the LED source (80), when the LED source (80) is in the control range with feedback and blocks saving of measured values of optical flow, when the LED source (80) is not in the control range with feedback.
EFFECT: improved accuracy of optical flow measurement.
20 cl, 4 dwg
