Xenon lamp knowledge (two)

In recent years,carIn China, it is being integrated into the daily life of the Chinese people at a rapid rate. Especially in the past few years, the attention of major global brands to Asia, especially the Chinese market, has been unprecedented. Everyone becomes more diverse and easier to choose and purchase. Under this premise, everyone's consumption philosophy has gradually become more rational and reasonable. As for the safety aspects of automobile use, more and more attention has been paid to it. Many brands of cars have some key safety equipment, such as:airbag,seat beltAnd so on can be used as the basic configuration of the car. However, based on cost considerations, the investment in automotive lighting only stays in the aesthetics of appearance, and the higher safety requirements for night driving can only be seen in high-end luxury cars, which seems to become a patent for luxury cars.
In fact, as early as 20 years ago, many countries in Europe and the United States have provided safer, more efficient and lower energy consumption solutions for automotive lighting.That is the xenon lamp, commonly known as"HID", The English interpretation is: high-pressure gas discharge lamps.The general principle is: throughStabilizerThe original car12VThe voltage rises instantly to38000V-45000Vhigh voltage,Through the tip discharge, a luminous arc is generated, which is similar to the noon sun"White light".due to
It replaces traditional tungsten filaments with high-pressure xenon gas wrapped in a quartz tube to provide higher color temperature and more concentrated lighting.This kind of light allows the driver to see far, clearer, and safer to drive at night.
Here, we first introduce some knowledge about lighting:
related information:
Color temperature and brightness
Color temperature (Co1or Temperature) Unit: absolute temperature (Kelvin, K)
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The color temperature is expressed in absolute temperature K, which is to heat a standard black body (such as platinum). When the temperature rises to a certain level, the color begins to change from red, orange, yellow, green, blue, indigo (blue-violet), and purple, gradually Change, using this characteristic of light color change, when the light color of the light source is the same as the light color of the black body, we call the current temperature of the black body the color temperature of the light source. When the color temperature is around 3000K, the light color becomes yellowish. When the color temperature is above 5000K, the light color is bluish. Lights of different color temperatures have different lighting and visual effects. Different color temperatures correspond to different colors of light as shown in the figure below. Different wavelengths give human eyes different color perceptions, ranging from red, orange, yellow, green, blue, indigo (blue-violet), and purple. The sensitivity of the eye changes strongly with the change of wavelength. For example, under good lighting conditions, the eye's sensitivity to 550nm wavelength light (yellow light) is 20 times that of red or blue light.This is why most carsFog lightsAn important reason why the street lights of Hema Road use yellow light.
Color temperature is a measure of color temperature, not the brightness of a lamp.The color temperature of the halogen lamp can be determined by2300Karrive7000K；HIDThe color temperature of the lamp is determined by4200KTo exceed8000K; The higher the color temperature of the lamp, the worse its penetration of fog and rain (the less bright it is).Well-known international manufacturers such as Philips have only produced the highest color temperature so far6000KXenon lamp.