Recently, BMW's 3-series spy shots scheduled to debut in 2015 were finally exposed. Not only was it fully upgraded, but also its headlights and taillights set to use LEDs to make it brighter, not only causing BMW fans to become more sought after. LED car lighting industry has many discussions.

In 1985, LED car lights appeared for the first time on passenger cars. In 1986, Nissan 300zx cars used LED high-position brake lights, marking the official start of the era of LED car lamps. Subsequently, BMW, Audi, Mercedes-Benz and other internationally renowned car brands have also introduced LED automotive lamps.

Subsequently, LED car lights grow at a double-digit rate each year. In 2005, the output value reached 546 million U.S. dollars, accounting for 14% of the world's LED applications.

In 2000, China's first Shanghai Volkswagen Santana 2000 used LED high-position brake lights, and grew at a rate of 70%-80% every year. In 2006, the output value exceeded 100 million yuan. After 2010, LED automotive lamps are widely used.

At present, with the financial investment in energy saving and emission reduction in various regions, LED quality improvement and price reduction, LED is more widely used in automobiles, and industry insiders predict that by 2015, China's LED industry will reach 500 billion. As a result, LED automotive lighting has become a publicly-viewed big cake.

How to grasp the future opportunities and share this big cake? Experts in the automotive field have pointed out that for a long time, automotive lamps use incandescent light sources as a reference to determine the lighting design of lamps and form corresponding software. The norms and standards of lighting are also formulated in this way. However, due to the LED light source has its own characteristics, the design and manufacture of LED car light can not simply apply the conventional method, must make changes to its design and manufacturing methods, and to develop specifications and standards that are compatible with LED car lights.

This shows that there are many problems that need to be solved in the design of LED automotive lamps. Experts in the above-mentioned automotive field pointed out that the parts of the lights directly related to optics mainly include light sources, reflectors and light distribution mirrors, collectively referred to as light sets. Among them, the mirror is a mirror specially designed for improving the light output rate of the light source and meeting the requirement of the light distribution performance, and the function of the light flux emitted from the light source to the reflector is irradiated by a certain distribution. The function of the light distribution mirror is to disperse the light reflected by the light reflector through the pattern on the light distribution lens to displace or scatter the light to a desired position so as to meet the requirement of light distribution. Therefore, LED light sources should be based on the requirements of different lamps on the luminous flux, use different power LEDs to form LED arrays.

The optical design of the headlights is the lighting group design of the headlights. Therefore, the primary considerations for the design of the lighting group are as follows: First, it is in accordance with the overall structure and modeling concept of the entire lamp plant; Second, the requirements of the national regulations and standards are met. .