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11-12
Do you know these LED basics?
LED (Light Emitting Diode) is an abbreviation for light-emitting diode. Diodes made of compounds of gallium (Ga), arsenic (AS) and phosphorus (P) can emit visible light when electrons and holes are combined, so they can be used to make light-emitting diodes, which can be used as indicators in circuits and instruments, or to form text or digital displays. Gallium arsenide diodes glow red, gallium phosphide diodes glow green, and silicon carbide diodes glow yellow.
11-09
Basic knowledge of lighting design
Lighting design should not only be familiar with the light source and lighting fixtures, but also deeply consider the space to be illuminated, the nature of the lighting object (architectural design, architecture, as well as indoor and outdoor materials, colors, workmanship, etc.) and many factors of people's visual psychology and physiological characteristics.
08-12
The world of light sources
. New light source: LED lamp (light-emitting diode); EDL lamps (electrodeless lamps); EL lamps (electroluminescent lamps).