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    • 5. 发明授权
    • Illumination device and control method
    • 照明装置及控制方法
    • US07173384B2
    • 2007-02-06
    • US11240274
    • 2005-09-29
    • Ludwig PlötzAlois BieblAndre Philipp
    • Ludwig PlötzAlois BieblAndre Philipp
    • G05F1/00
    • G01J5/50G09G3/3413G09G2320/029G09G2320/064G09G2320/0666G09G2360/145
    • A description is given of an illumination device which emits mixed-color light containing light of at least two different color channels (R, R1, G, G1, B, B1). The illumination device contains at least one primary light source (1) of a first color, the light of which forms a first color channel (R, R1, G, G1, B, B1), and at least one primary light source (1) of a second color, the light of which forms a second color channel (R, R1, G, G1, B, B1), at least one sensor device (3), which is positioned such that it can receive mixed-color light and is suitable for detecting brightness of light of a wavelength range comprising the color channels (R, R1, G, G1, B, B1) and which determines the brightnesses of the different color channels (R, R1, G, G1, B, B1) separately and repeatedly during operation. Furthermore, the illumination device contains an evaluation and control device (4), which evaluates the brightness values of the color channels (R, R1, G, G1, B, B1) and determines pulse-width-modulated electrical signals with a basic period (11) modified in such a way for the driving of the individual color channels (R, R1, G, G1, B, B1) in such a way that the color location of the mixed-color light lies within a predetermined region of the CIE standard chromaticity diagram. A method is also described for controlling such an illumination device.
    • 给出了发出包含至少两个不同颜色通道(R,R 1,G,G 1,B,B 1)的光的混合色光的照明装置的描述。 所述照明装置包含至少一个第一颜色的初级光源(1),其第一颜色的光形成第一颜色通道(R,R 1,G,G 1,B,B 1)和至少一个初级光 源(1),其光形成第二颜色通道(R,R 1,G,G 1,B,B 1),至少一个传感器装置(3),其被定位成使得 可以接收混合色光,并且适合于检测包括颜色通道(R,R 1,G,G 1,B,B 1)的波长范围的光的亮度,并且其确定不同颜色通道(R ,R 1,G,G 1,B,B 1)。 此外,照明装置包含评价和控制装置(4),其评估颜色通道(R,R 1,G,G 1,B,B 1)的亮度值,并且确定脉冲宽度调制的电信号 以这样的方式修改的基本周期(11),以使得混合色光的颜色位置位于的方式驱动各个色彩通道(R,R 1,G,G 1,B,B 1) 在CIE标准色度图的预定区域内。 还描述了一种用于控制这种照明装置的方法。