LEDs are light emitting opto-electronic semiconductor components. Since decades, they are used in the field of man-machine communication to convert electrical signals into visual information.
Typical LED applications encompass household appliances, telecommunications, life sciences and signal technologies. Moreover, due to its low power consumption and excellent operational reliability LED technology partly replaces conventional lighting solutions already today.
The development of LED technology progresses at rapid pace, as light efficiency (Lumen/Watt) increases, colour qualities improve and temperature ranges get manageable. Consequentially, new territories of applications will open up, especially in the field of standard lighting.
Based on their structure, LEDs can be split into quattuor groups:
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