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LED color temperature characteristics

Update:23 Jul 2018
Summary:

LED color temperature refers to the color change experi […]

LED color temperature refers to the color change experienced by human eyes under different energies of light waves.

In the calculation of the color temperature of the LED, Kelvin is the unit of black body radiation 0Kelvin=273°C as the starting point of the calculation. The black body is heated, and as the energy increases, it will enter the field of visible light, for example: At 2800K, the color light emitted is the same as the bulb, and we say that the color temperature of the bulb is 2800K.

The color temperature change in the visible light range, from low color temperature to high color temperature is orange red --> white --> blue.

Color temperature characteristics

1. At high latitudes, the color temperature is higher and the color seen is blue.

2, in low latitude areas, the color temperature is low, the color seen is reddish. <----low color temperature ------------------ high color temperature --- ->

3. During the day, the color temperature also changes. When the sun is oblique, the energy is absorbed by the cloud (cloud, air), so the color temperature is low. When the sunlight is direct, the energy is absorbed less, so the color temperature is higher. .

4, Windows sRGB color model is 6500K as the standard color temperature, represented by D65.

5. The color temperature in the morning is about 4400K.

6, the alpine color temperature is about 6000K.

Color temperature of correlated color temperature source in different light source environments

Northern Clear Sky 8000-8500k

Cloudy 6500-7500k

Summer noon sunshine 5500k

Metal halide lamp 4000-4600k

Afternoon daylight 4000k

Cool color camp light 4000-5000k

High pressure mercury lamp 3450-3750k

Warm color camp light 2500-3000k

Halogen lamp 3000k

Tungsten wire 2700k

High pressure sodium lamp 1950-2250k

Candle light 2000k

The color temperature of the light source is different, the light color is also different, the color temperature is below 3300K, there is a stable atmosphere, the feeling of warmth; the color temperature is 3000--5000K for the intermediate color temperature, and there is a refreshing feeling; the color temperature has a cold feeling above 5000K. Different light sources The light color constitutes the best environment, such as the table: color temperature light color atmosphere effect

Cool>5000K

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