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LED History

1907

H. J. Round (1881-1966) discovers the physical effect of electroluminescence.

1962

The first red luminescence diode, type GaAsP, is launched by General Electric.

1971

LEDs are available in more colours (green, orange, yellow).

80er-90er Jahre

First high power LEDs are launched.

1995

The first LED with white light created by luminescence conversion is introduced.

1997

White LEDs are put on the market.

LED advantages: long life span, low energy-consumption, low heat emission, shock resistant