LED ILLUMINATION CIRCUIT Russian patent published in 2018 - IPC H05B33/08 

FIELD: lighting.

SUBSTANCE: invention relates to the lighting devices. Result is achieved by the fact that the illumination circuit (1) comprises the first color LEDs (110) primary set (11) and the additional color LEDs (120) secondary set (12); wherein in the LEDs (110) primary set (11) light output temperature-dependent decrease is greater than in the LEDs (120) secondary set (12) light output temperature-dependent decrease; and flows fixing device implemented, substantially, for preservation of constant relationship between the primary set (11) light output and the secondary set (12) light output, during the lighting illumination (1) LEDs (110, 120) light output temperature-dependent overall decrease. Present invention also describes a lighting device for the objects illumination with the predetermined color point light, wherein the lighting device comprises at least one such illumination circuit (1), in which the LED sets (11, 12) are selected for emission, in combination, of light with the predetermined color point at the certain initial temperature, and in which the illumination circuit (1) flows ratio fixing device is configured to store this color point at a temperature higher than the initial temperature.

EFFECT: technical result is provision of lighting device for the objects illumination with light with the predetermined color point.

11 cl, 11 dwg