Color Adaptive Lighting System
A color adaptive lighting system for creating a mixture of light that lies on the Planck's radiation course, includes: a housing ( 2; 17; 27 ); a first light source in the form of at least one low-pressure gas discharge lamp; a second light source in the form of at least two light-emitting diodes (LED's) ( 9, 10; 21, 22; 33, 34 ); at least one reflector ( 3; 17; 27 ) that is placed behind the low-pressure gas discharge lamp ( 4; 18, 28 ) in the direction of emission of the lighting system; optionally a diffusing disc and/or cover disc ( 13, 14; 19, 20 ), and; a ballast for operating the light sources and for controlling the intensity of the light sources. The at least two LED's ( 9, 10; 21, 22; 33, 34 ) are arranged in the lighting system in such a manner that the main direction of emission of the LED's ( 9, 10; 21, 22; 33, 34 ) points toward the reflector.
1 . A color-adaptive lighting system for producing a light mixture which lies on the Planckian locus, having a housing ( 2 ; 17 ; 27 ), a first light source in the form of at least one low-pressure discharge lamp, a second light source in the form of at least two light-emitting diodes (LEDs) ( 9 , 10 ; 21 , 22 ; 33 , 34 ), at least one reflector ( 3 ; 17 ; 27 ), which is arranged downstream of the low-pressure discharge lamp ( 4 ; 18 ; 28 ) in the emission direction of the lighting system, and a ballast for operating the light sources and controlling the intensity of the light sources, characterized in that the at least two LEDs ( 9 , 10 ; 21 , 22 ; 33 , 34 ) are arranged in the lighting system in such a way that the main emission direction of the LEDs ( 9 , 10 ; 21 , 22 ; 33 , 34 ) points in the direction of the reflector.
2 . The lighting system as claimed in claim 1 , characterized in that the low-pressure discharge lamp is a compact fluorescent lamp ( 4 ; 18 ).
3 . The lighting system as claimed in claim 1 , characterized in that the low-pressure discharge lamp is a linear fluorescent lamp ( 28 ).
4 . The lighting system as claimed in claim 1 , characterized in that the second light source comprises more than two LEDs ( 9 , 10 ; 21 , 22 ; 33 , 34 ).
5 . The lighting system as claimed in claim 4 , characterized in that the LEDs ( 9 , 10 ; 21 , 22 ; 33 , 34 ) have a yellow, red, green and/or blue light spectrum.
6 . The lighting system as claimed in claim 5 , characterized in that in each case a plurality of LEDs with differently colored light spectra are combined to form one LED in a common housing.
7 . The lighting system as claimed in claim 1 , characterized in that the LEDs ( 9 , 10 ; 21 , 22 ; 33 , 34 ) are fixed on holders ( 7 , 8 ; 29 , 30 ), which consist of a heat-dissipating material.
8 . The lighting system as claimed in claim 1 , characterized in that the holders ( 7 , 8 ; 29 , 30 ) have cooling ribs ( 11 , 12 ; 33 , 34 ).
9 . The lighting system as claimed in claim 1 , characterized in that the housing ( 2 ; 17 ; 27 ) of the lighting apparatus consists of a thermally conductive material.
10 . The lighting system as claimed in claim 9 , characterized in that the LEDs are fixed directly to the housing ( 2 ; 17 ; 27 ).
11 . The lighting system as claimed in claim and 10 , characterized in that cooling ribs ( 25 , 26 ) are fitted on the outside on the housing ( 2 ; 17 ; 27 ).
12 . The lighting system as claimed in claim 4 , characterized in that the LEDs ( 9 , 10 ; 21 , 22 ; 33 , 34 ) are arranged in, in each case, a row parallel to the axis of the first light source to the left and to the right of the first light source.
13 . The lighting system as claimed in claim 12 , characterized in that, when using LEDs ( 9 , 10 ; 21 , 22 ; 33 , 34 ) with different light colors, the LEDs arranged in a row each have an alternating light color.
14 . The lighting system as claimed in claim 1 , characterized in that the lighting system has a covering plate ( 14 ; 20 ) in the emission direction and possibly a diffusing plate ( 13 ; 19 ) which is positioned upstream of the covering plate ( 14 ; 20 ) in the emission direction, it also being possible for the covering plate and the diffusing plate to be combined to form a common covering and diffusing plate.