Bi-xenon lamps are xenon arc light sources that can quickly change focus from low beam to high beam. In modern bi-xenon lamps, focus switching occurs due to the fact that an electromagnet moves the lamp from one position to another.
Instructions
Step 1
The principle of operation of xenon lamps is based on the glow of an electric arc in an atmosphere of an inert xenon gas. Their spectral characteristics are closest to daylight.
Step 2
Structurally, a xenon lamp consists of a glass bulb filled with gas and two tungsten electrodes, between which an electric arc occurs. The main luminous flux occurs in the cathode region. Due to the fact that the luminous area in xenon lamps is quite small, they are used as point light sources that allow optimal focusing of the luminous flux.
Step 3
Bi-xenon car lamps work on the same principle as xenon lamps. The only difference is in the prefix "bi" - the fact is that the design of the "bixenon" allows one lamp to combine two types of light at once - near and far. Switching between high and low beam is carried out by moving the light source using an electromagnet. The transition from the focus of the near beam to the focus of the far one (and vice versa) occurs almost instantly.
Step 4
A conventional halogen lamp uses different filaments to switch between low and high beam. Bi-xenon lamps use a different principle to change the focus of the luminous flux. At first, these lamps used two bulbs or moving curtains. In modern lamps, switching between high and low beam occurs due to the movement of the xenon bulb using a solenoid - an electromagnet.
Step 5
Modern bi-xenon lamps are built on the 9007, 9004 and H4 base. They can be carried out in a plastic or metal case, operate on a 12 volt network and provide a brightness of more than three thousand lumens. The industry produces bi-xenon lamps with a wide range of color temperatures - from 4300K to 8000K. The most popular Bixenon in our country is produced by Mitsumi and Freeway.
