Which technology is superior to automotive lighting technology?

I don't know when, the lights have become the focus of many new car listings. For example, several luxury brand new cars that have been listed recently have made a lot of articles under the lights, and the technology content is full - the new BMW 7 series Intelligent laser headlights, geometric multi-beam LED headlights for the new Mercedes-Benz E-class long-wheelbase sedan, and new Audi A4L LED matrix headlights... Let's see how powerful these lights are.

Smart laser headlight

The laser headlights are not the kind of laser that stuns to "explosion" in the movie. It is not even dazzling at all. The principle is that the blue light of the laser light-emitting diode will pass through the fluorescent material in the headlight unit and convert it into A diffused white light that is brighter and more friendly to the eyes. Many people refer to laser headlights as a "reasonable next step" after LED headlights because it is more energy efficient and more fuel efficient. And its brightness is beyond the reach of a variety of light sources, including halogen headlights, LED headlights and so on. For example, ordinary halogen headlights, the distance of the high beam is very limited, xenon headlights can reach 150 meters, LED headlights can reach up to 300 meters, and the current laser headlights can reach 600 meters.

At the same time, the powerful laser source of the BMW7 series will not affect other traffic participants. The smart headlights have an anti-glare function that automatically adjusts the beam and illumination area, and can automatically adjust the light to avoid the area opposite the vehicle.

Geometric multi-beam LED headlights

It consists of 84 independent LEDs and is the first high-resolution digital lighting system. If other xenon lamps and ordinary LED headlights are like an ordinary person holding a flashlight, then this geometric multi-beam LED headlight is equivalent to 84 times. With 2, equal to 168 people holding 168 flashlights!

When it comes to the car, 84 LEDs can be independently adjusted and the road condition is calculated with 100 scans per second. When there is a car on the head or a vehicle in front, the LED light of the high beam module will be partially closed to form a U-type dim mode, just like wearing a sunglasses for the car in front.

When passing by a street sign, it intelligently recognizes the reflection of the traffic sign and reduces the glare of its reflection. When encountering bad weather, use the computer to judge flexibly, reduce the impact of ground glare under the rain and snow, and avoid the ground reflections to yourself and the opposite car. When encountering a corner, the low beam with the electronic cornering light function can illuminate the curve before you hit the steering wheel, and can recognize the obstacle early when entering the corner.

Matrix LED headlights

This matrix LED headlight consists of a low beam and three high beam sets. The low beam includes 11 LED light sources, and the power consumption is only 20W. The high beam consists of 12 LED light sources and three reflective structures. The 64-level adjustment is made according to the road conditions. When there is an opposite vehicle, the high beam The lights do not need to be switched to low beam, but can automatically shield the opposite car so that the lights do not affect the opposite car. Specifically, the matrix LED headlights can automatically turn off a certain set of light sources according to the situation of the road ahead and the situation of the opposite vehicle to reduce the glare effect on the vehicle in front. Depending on the matching with the MMI system navigation function, this matrix LED headlights can also activate corner-assisted illumination to provide a more comprehensive view of the vehicle before cornering.

There are many types of LED lights, not all of them are advanced.

Under the promotion of luxury brands, LED lights have become synonymous with the brand's high-tech and high-profile display of vehicles. For the purchase of cars, the first reaction is to bring up the LED lights.

In fact, LED is now used in cars, LED daytime running lights, LED headlights, full LED lights, the difference between one or two words can be far worse.

LED daytime running lights, 80,000 models have

Many manufacturers have such a configuration: "Equipped with LED daytime running lights", in fact, this is not useful for the headlights, compared to the safety improvement, more important is the aesthetic effect. Its role is not lighting, but to make the front and opposite vehicles notice the location of the vehicle you are driving, which is its most fundamental design intention.

At the beginning of 2011, the EU stipulated that all new cars produced in the country must be equipped with daytime running lights, so 100% of the new cars imported from Europe are now with daytime running lights, Japanese, Korean, American and many The joint venture models are also standard, and now there are basically 80,000 yuan models, such as Baojun 560, Beiqi Magic Speed ​​S6.

LED headlights, down to the 150,000-level model

It is important to note that the LED headlights mentioned here refer to the low beam using LED light source, and the high beam still using a combination of halogen lamps, some of which are LED lamps. The main reason is that the high beam concentrating effect of the LED is not very good, the optical system is not optimized for the LED light source, in simple terms, to reduce the cost.

At present, the headlights of LEDs can be bought at a budget of around 150,000, such as Lingpai (top matching) and Geely Borui (medium high).

Full LED headlights, enter the 200,000 model configuration list

All LED headlights refer to all the light sources of the headlights are LEDs, and the low beam and high beam are LEDs. As early as 2008, Audi realized full LED headlights on the R8, including all light sources such as far and near light, steering, and daytime running lights. In 2013, the new S-Class released by Mercedes-Benz pushed all-LED headlights to a higher level.

However, the full LED headlights are also divided into three or six, etc., to distinguish the number of LEDs, whether there are multi-point illumination functions, adaptive high-beam auxiliary functions, etc. Currently, all LED headlights have been deployed in the new magotan, Buick Weilang Wait for about 200,000 high-end models.

With the further decline in LED costs, I believe that it will not take long, we will see the configuration of LED headlights in compact models and small cars. On the other hand, when the LED headlights are civilianized, luxury brands are bound to come up with higher technology configurations. For example, "laser headlights" and "OLEDs" have already entered the configuration table of BMW and Audi high-end models.

Editor: Yingzi

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