What are the functions of lenses and several basic conditions for selecting LED lenses

A lens is a part of an optical component made of a transparent material with a spherical surface. The lens consists of several lenses, including plastic lenses and glass lenses. Glass lenses are a bit more expensive than plastic ones. It plays an important role in astronomy, transportation, art and other fields. What are the functions of the lens and several basic conditions for selecting LED lenses.

What are the functions of the lens

1. The lens has strong light-gathering ability and can be used to illuminate the road, not only the road is bright, but also very clear.

2. Because the light distribution is very small, its lighting range is far clearer than that of ordinary halogen lamps. As a result, it can immediately see things in the distance and avoid crossing or losing target.

3. Compared with the traditional lamp head, the lens-type lamp head has the advantages of uniform brightness and strong penetrating power. It has great penetrating power no matter in rainy or foggy weather. In this way, oncoming vehicles can receive lighting information immediately and avoid accidents.

4. The service life of the HID bulb of the lens is 8 to 10 times that of the ordinary bulb, thus reducing the unnecessary trouble caused by having to replace the bulb.

5. The xenon lamp of the lens does not need to install any power supply system, because the real HID gas discharge lamp must have a 12V voltage regulator, and then convert it into a normal voltage to supply the xenon lamp stably and continuously. This can play a role in saving electricity.

Several basic conditions for selecting LED lenses

1. The application environment of different lamps and lanterns is different. Considering the lighting effect and normal use in the environment, the matching LED lens must meet the environment of its use.

2. The angle of the LED lens is required. The angle is a relative value. Generally, the beam angle is defined by the trigonometric function relationship between the diameter of the visible spot and the irradiation distance. Adjust according to the design effect.

3. According to the customer's requirements for light intensity, some light spots are bright in the middle and then attenuate to the surroundings, and some things become dark at the edge of the light spot. There is no clear boundary for the range of the light spot that is attenuated to the surrounding. Therefore, it is designed or configured according to the actual requirements of customers for light intensity.

4. The adaptation requirements for the light source, due to the differences in the light efficiency and structure of different light sources, such as several major light source brands, such as Kerui, Osram, Philips, Nichia, etc., have different specifications for the lens.

5. The lens of the module is larger than the single lens, and the distance between the LED light source and the lens will also affect the angle. If it is not a specially designed LED lens, it is necessary to take a sample for further testing to determine whether it is suitable.