What is the difference between the color temperature of these different light sources, and how do we choose the one that suits us when buying? The following is a good editor of Optoelectronics. Let's popularize the color temperature knowledge of LED light sources for everyone.
light source
The light in nature is not always the same, and the perceived color of an object depends on its light source. In a broad sense, everything that can radiate electromagnetic waves in the visible wavelength range can be called a light source; in a narrow sense, it refers to lighting, which is a light source that can provide a more uniform distribution of light energy in the entire range of visible light.
Color temperature
Color temperature is a characterization of the color quality of a light source, the hue tendency and saturation of a light source. When the color of the light emitted by the light source is the same as the color of the light emitted by the black body at a certain temperature, the temperature of the black body is called the color temperature of the light source.
If an object burns, first the flame is red, and as the temperature rises it becomes orange-yellow, then white, and finally, blue appears. Scottish mathematician and physicist Lord Kelvin first discovered the close combination of heat and color in 1848, and left the world a great concept of "absolute zero" (-273.16 degrees Celsius). Since then the Kelvin temperature scale has been created, and this is the color temperature we are talking about today.
As for the color temperature and the color quality of the light source, it can be considered that the higher the color temperature, the colder the light, and the lower the color temperature, the warmer the light.
The color temperature of the light source is different, and the color of the light is also different. The color temperature has a stable atmosphere and a warm feeling below 3300K; the color temperature between 3000-5000K is the intermediate color temperature, which has a refreshing feeling; and the color temperature above 5000K has a cold feeling.
The Kelvin scale uses K (abbreviation for kelvin) to indicate temperature. The lower the numerical value, the more "red", the higher the numerical value, the more blue. Red and blue are not the colors of the light itself, but only indicate that there are more red or blue components in the spectrum.
Correlated color temperature for different light source environments:
The color temperature only represents the spectral component of the light source, not the luminous intensity. A high color temperature indicates that there are more short-wave components, which are blue-green; a low color temperature indicates that there are more long-wave components, which are reddish yellow. Although the color temperature of the light source is not a concept with lightness and darkness, the color temperature directly affects lightness and darkness and contrast.
Because the correlated color temperature is actually close to the light source's light color with black body radiation, the evaluation value of the light color performance of the light source is not an accurate color comparison. Therefore, two light sources with the same color temperature value may still have light color appearance. Slightly different. It is impossible to know the color rendering ability of a light source on an object based on color temperature alone, or how the color of an object is reproduced under the light source.
Several popular color temperatures for LED lights:
(1) Cold white light, color temperature above 6500K, light source is close to natural light, has a bright feeling, suitable for most occasions, very bright, especially suitable for large-scale irradiation of households, such as search and rescue, search, exploration, etc.
(2) Positive white light, color temperature between 5500K ~ 6500K, the light of normal white light is not as dazzling as cold white light, but it is still very bright, suitable for outdoor use in various occasions, such as night climbing, adventure, outdoor sports, etc .;
(3) Medium white light, color temperature between 3500K ~ 5500K, medium white light is relatively mild, suitable for most flashlights, such as duty, fishing, outdoor, etc .;
(4) Warm white light is 2100K ~ 3500K. The warm white light is soft and can give people a warm and comfortable feeling. Suitable for small area use, such as indoor home, tent camping, picnic, night running, etc.
What is the difference between the color temperature of these different light sources, and how do we choose the one that suits us when buying? The following is a good editor of Optoelectronics. Let's popularize the color temperature knowledge of LED light sources for everyone.
light source
The light in nature is not always the same, and the perceived color of an object depends on its light source. In a broad sense, everything that can radiate electromagnetic waves in the visible wavelength range can be called a light source; in a narrow sense, it refers to lighting, which is a light source that can provide a more uniform distribution of light energy in the entire range of visible light.
Color temperature
Color temperature is a characterization of the color quality of a light source, the hue tendency and saturation of a light source. When the color of the light emitted by the light source is the same as the color of the light emitted by the black body at a certain temperature, the temperature of the black body is called the color temperature of the light source.
If an object burns, first the flame is red, and as the temperature rises it becomes orange-yellow, then white, and finally, blue appears. Scottish mathematician and physicist Lord Kelvin first discovered the close combination of heat and color in 1848, and left the world a great concept of "absolute zero" (-273.16 degrees Celsius). Since then the Kelvin temperature scale has been created, and this is the color temperature we are talking about today.
As for the color temperature and the color quality of the light source, it can be considered that the higher the color temperature, the colder the light, and the lower the color temperature, the warmer the light.
The color temperature of the light source is different, and the color of the light is also different. The color temperature has a stable atmosphere and a warm feeling below 3300K; the color temperature between 3000-5000K is the intermediate color temperature, which has a refreshing feeling; and the color temperature above 5000K has a cold feeling.
The Kelvin scale uses K (abbreviation for kelvin) to indicate temperature. The lower the numerical value, the more "red", the higher the numerical value, the more blue. Red and blue are not the colors of the light itself, but only indicate that there are more red or blue components in the spectrum.
Correlated color temperature for different light source environments:
The color temperature only represents the spectral component of the light source, not the luminous intensity. A high color temperature indicates that there are more short-wave components, which are blue-green; a low color temperature indicates that there are more long-wave components, which are reddish yellow. Although the color temperature of the light source is not a concept with lightness and darkness, the color temperature directly affects lightness and darkness and contrast.
Because the correlated color temperature is actually close to the light source's light color with black body radiation, the evaluation value of the light color performance of the light source is not an accurate color comparison. Therefore, two light sources with the same color temperature value may still have light color appearance. Slightly different. It is impossible to know the color rendering ability of a light source on an object based on color temperature alone, or how the color of an object is reproduced under the light source.
Several popular color temperatures for LED lights:
(1) Cold white light, color temperature above 6500K, light source is close to natural light, has a bright feeling, suitable for most occasions, very bright, especially suitable for large-scale irradiation of households, such as search and rescue, search, exploration, etc.
(2) Positive white light, color temperature between 5500K ~ 6500K, the light of normal white light is not as dazzling as cold white light, but it is still very bright, suitable for outdoor use in various occasions, such as night climbing, adventure, outdoor sports, etc .;
(3) Medium white light, color temperature between 3500K ~ 5500K, medium white light is relatively mild, suitable for most flashlights, such as duty, fishing, outdoor, etc .;
(4) Warm white light is 2100K ~ 3500K. The warm white light is soft and can give people a warm and comfortable feeling. Suitable for small area use, such as indoor home, tent camping, picnic, night running, etc.
