The importance of front lights for cars, trucks and buses to all road users cannot be overemphasized. For many years, all these vehicles are equipped with round or rectangular front optical blocks, with a classic design.
But new perspectives are now opening with the arrival of LEDs (Light Emitting Diodes) to equip the headlights.
LED lights (Light Emitting Diode) are very recent in the automotive market, their first use dates back to 3, 4 years. LED headlights are of course more powerful than xenon bulbs but more pleasant for the eyes, they are less likely to dazzle. LEDs have the particularity of having a very low energy consumption compared to xenon bulbs, so they are very often used for electric cars.
LED lighting in cars is refreshing, attractive and pleasant and gives an attractive contemporary touch. The light suited to you as the driver of the car. Whether you are young or older, a man or a woman – thanks to LEDs, everyone can design a personalized lighting atmosphere in their own car.
One of LEDs distinctions is their small size, LEDs, which can easily be assembled, allow car manufacturers to create new shapes, new design to the headlights, which bring a touch of singularity to cars that have them. However, the use of LEDs at the automotive level remains complex: LEDs tend to heat up when they are running, which can ignite other elements. Initially, they were only used for turn signals and brake lights. We find them recently applied to the headlights of some cars (especially on Audi).
LEDs have found their first applications as (third) brake light as well as to equip the turn signals; recently, they are seen more and more often as daytime fires and in the future, they will be more numerous to ensure the full lighting of vehicles.
How Does it Work?
It consists of two elements made of semiconductor material (silicon) that produce light when a current passes through them. A considerable mass of light photons is emitted even if the production current is relatively low. LEDs are therefore low in energy consumption; moreover, they are so small that we speak of a point light source. The scattered light is actually concentrated or focused by a lens that is part of the LED itself: it is no longer necessary to have reflectors and frames.
In conclusion, historically, the main goal of led headlights or led lighting is to illuminate the road. With cars going faster and faster, it is important to see well ahead, even at speeds over 100 km/h. Whether at night or under extreme conditions, it is necessary to illuminate the farthest and the strongest possible without dazzling oncoming motorists. This is the dilemma that companies today must resolve if they want to stand out.