The luminous brightness of led light strips and other products has three units, these three units are illuminance units - Lux lux,
There are three units of illuminance for products such as led strips. These three units are illuminance units - lux lux, bright units - lumens lumen (lm), and luminous intensity units - candle power (cd). Each of these three units has its own scope of use, but they are numerically interoperable.
The luminous intensity (per mcd) is the idle density of the luminous flux. It is used to measure the amount of light emitted by the light source. The Chinese name is called 'candela', the symbol is cd, and the front m refers to one thousandth. 'Man Candela'.
Luminous flux refers to the energy generated by the light source to the space per unit time, and the unit is lumen. 'Lumen/Watt' refers to the ratio of the luminous flux to the power consumed, which is the luminous efficiency of a light source such as a led flexible strip.
After the light source illuminates the object, the luminous flux per unit area of the object is called the illuminance. The unit is 'Luke', which means the extent to which the object is illuminated.
Under normal circumstances, the luminous intensity of a single led light bar and other products is in cd, and with the above parameters, the luminous intensity of led lamps varies from single digit mcd to several thousand mcd, and the general manufacturer will indicate this in the product description. The luminous intensity of the product.
Led light is also an electromagnetic wave. Like radio waves, the wavelength range is a few nanometers to a millimeter. The visible light of the human eye can be seen, the wavelength is 380nm-780nm, and the visible light has red orange, yellow, green, blue, and purple. In different wavelength intervals, ultraviolet light having a wavelength outside 380 nm is ultraviolet light, and infrared light having a wavelength outside 780 nm, that is, infrared light.
The general indicator of the spectral quality of a source is the color temperature, which is defined in terms of absolute blackbody. In the energy distribution of warm light, the red radiation is relatively more; in the energy distribution, if the color temperature is increased, the blue radiation will increase, and the light at this time is called cold light.
China Hardware Business Network http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
