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Introduction of common white LED light spectrum range

February 17, 2023
What is the LED light?

The LED lamp is an electroluminescent semiconductor material chip, which is cured with silver or white glue to the bracket, and then connected to the chip and the circuit board by silver wire or gold wire, and sealed with epoxy resin to protect the inner core wire. Function, and finally install the outer casing, so the LED lamp has good seismic performance.

White LEDs are usually formed by two methods. The first one uses "blue light technology" to form white light with phosphors; the second is a variety of monochromatic light mixing methods. Both methods have successfully produced white light devices. Germany's Hella has developed aircraft reading lights using white LEDs; a street in Canberra, Australia, has used white LEDs for street lighting; China's urban traffic management lights are also replacing white traffic lights with white LEDs. It is foreseeable that in the near future, white LEDs will enter the home to replace existing lights.

What is the wavelength range of a common white LED source ?

The wavelength range of white LEDs is: 450-460nm

Spectral alignment of various light sources.

The wavelength of visible light ranges from 360 to 830 NM, and the wavelength of LED illumination is all in the visible range, as shown in the figure.

Introduction of common white LED light spectrum range

The light emitted by the fluorescent tube has an ultraviolet light of 360 NM or less, as shown in the figure.

Introduction of common white LED light spectrum range

The light emitted by incandescent lamps has ultraviolet light and infrared light other than 360-830 NM, as shown in the figure.

Introduction of common white LED light spectrum range

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