Illumination device for backlighting an image reproduction device
A technology for lighting devices and reproduction devices, which is applied to lighting devices, light guides of lighting systems, instruments, etc., can solve the problems of difficulty in manufacturing and cannot realize the serial connection of a single light-emitting diode, and achieve the effects of long life, good heat conduction and high efficiency
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[0030] figure 1 A device is schematically shown with a light source 1 and a display 3, wherein an optical arrangement is arranged between the light source 1 and the display 3 for focusing the light emitted from the light source 1 in the sense of a uniform distribution onto the side of the display 3 On the surface. The distance between the light source and the display is a few centimeters. A cooler 4 for heat conduction is located on the back of the light source 1 .
[0031] figure 2 Shown is a top view of a light source 1 with a white plastic frame comprising, in the illustrated embodiment, 8×4 holes in which the light spots 6 are located. The size of the plastic frame 5 is equivalent to the visible area of the display. The plastic frame 5 and the light spot 6 rest on an aluminum plate 7 for fixing and heat conduction. Conductors in the form of flat cables 8 for connecting the light-emitting diodes to the power supply exit from the side.
[0032] image 3 An enlarged...
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