Which Mirror Is Used In Headlights Of Automobile

Mirrors are an essential part of automobile headlights, as they help to direct the light from the bulb in the desired direction. There are two main types of mirrors used in headlights: parabolic reflectors and elliptical reflectors.

Parabolic reflectors are the most common type of mirror used in headlights. They are made up of a parabolic curve, which is a curve that is symmetrical about a central axis. The bulb is placed at the focal point of the parabola, and the light from the bulb is reflected off the parabolic curve and directed out through the lens.

Elliptical reflectors are a newer type of mirror used in headlights. They are made up of an elliptical curve, which is a curve that is symmetrical about two axes. The bulb is placed at one of the foci of the ellipse, and the light from the bulb is reflected off the elliptical curve and directed out through the lens.

Both parabolic and elliptical reflectors have their own advantages and disadvantages. Parabolic reflectors are less expensive to manufacture than elliptical reflectors, but they produce a less uniform beam of light. Elliptical reflectors produce a more uniform beam of light, but they are more expensive to manufacture.

The type of mirror used in a particular headlight depends on the desired beam pattern. For example, parabolic reflectors are often used in low-beam headlights, while elliptical reflectors are often used in high-beam headlights. ### Conclusion: The choice of mirror used in a headlight is an important one, as it affects the beam pattern and the overall performance of the headlight. By understanding the different types of mirrors available, you can make an informed decision about which type of mirror is right for your needs.