《Light_guides》.pdfVIP

Light Guides Application Note Introduction guide itself and LED‘s mounted to a circuit Light Guides are used wherever the light of substrate. Light guides are used in a wide a lightsource should be distributed range of application fields. Due to the wide homogeneously over a particular area, when variety of light guide designs and there is a spatial distance between light applications, use of light guides with LED‘s source and the area which is to be as lighting element is an ideal combination. illuminated. Use of conventional lamps such as incandescent lamp or flourescent tubes with Definition of application fields light guides is also possible. Due to the wide radiation angle and the large package of Following some application examples conventional lamps, LED‘s are much more utilizing light guides are listed. suitable for light guide systems. Detailed information about advantages of LEDs are ! LCD Backlighting, e.g. given in the chapter „Reasons for the need • Car radio of LED instead of incandescent lamps and • Cellular phone flourescent tube“. • Multimeter Basics ! Marking • Dash boards To have a