Non-Bliding Headlights

Feb 25, 2005

Russian scientists from Dimitrovgrad (Ul'yanovsk area) have designed a new non-blinding headlight system. Its use in cars will significantly decrease the risk of driving at night, because the oncoming light will be duller, while the road in front will be lightened brighter. First studies were conducted at the expense of the scientists. Now, with the support of FASIE, the innovation is adapted to industrial making and will probably be launched into the mass production.

A need for an anti-blinding system is obvious to everyone that drove at night and was blinded for a moment by the headlight of an oncoming car. Only very few drivers use, in accordance with the rules, the existing switch from distant to close light in order not to blind ones who drive in oncoming cars. Of course, there are smart systems of night vision based on infrared radiation, but they are too expensive for common cars.

Solution found by the Russian specialists seems paradoxical at first ? darkening the windscreen! However, such darkening certainly won't be permanent, but pulsing.

The new system consists of the following components: gas-discharge light (xenon lamp); electronic block switching the light on and off; windscreen with an optical cover, LC-locks and changeable transparency; and the electronic chip that controls the whole system. It works as follows. The switch block sends an electric impulse to headlights generating a flash that lightens the road, while the optical cover is "open" and the windscreen is transparent. In a fraction of a second, the headlights are off and optical screen is "closed", which darkens the windscreen by more than 50 times.

A high frequency of flashing allows the human eye to perceive a continuous light (like in a film, where quickly changing images give us an illusion of movement), so a driver can see the road very well. A part-time darkening of the windscreen protects the driver's eyes from the blinding light of an oncoming car.

For avoiding coincidence of flashing rhythms in cars coming from opposite directions, the inventors installed a special program for random frequency of flashing (the average frequency still allowing an illusion if continuous light). Thus, it is very improbable that your headlight flashes into an open screen in the oncoming car.

It should also be mentioned that xenon lamps are three times as powerful as usual halogen lamps and have a light spectrum close to that of daylight. Therefore, with the use of xenon lamps drivers can better see the road and sidewalks.

Soon this amazing system will appear in shops. One of the inventors, Alexander Polovinkin, explains: "Principal technical problems have already been solved, and all necessary details are available. Now we need to optimize the system and improve its operation parameters and design. Our first demonstration sample works well. Probably in two or three years we can produce the first factory-made set of our anti-blinding system".

Source: Inormnauka

Explore further: Egypt archaeologists find ancient writer's tomb

add to favorites email to friend print save as pdf

Related Stories

Android gains in US, basic phones almost extinct

9 hours ago

The Google Android platform grabbed the majority of mobile phones in the US market in early 2014, as consumers all but abandoned non-smartphone handsets, a survey showed Friday.

SpaceX launches supplies to space station (Update)

9 hours ago

The SpaceX company returned to orbit Friday, launching fresh supplies to the International Space Station after more than a month's delay and setting the stage for urgent spacewalking repairs.

Recommended for you

Egypt archaeologists find ancient writer's tomb

Apr 19, 2014

Egypt's minister of antiquities says a team of Spanish archaeologists has discovered two tombs in the southern part of the country, one of them belonging to a writer and containing a trove of artifacts including reed pens ...

Study finds law dramatically curbing need for speed

Apr 18, 2014

Almost seven years have passed since Ontario's street-racing legislation hit the books and, according to one Western researcher, it has succeeded in putting the brakes on the number of convictions and, more importantly, injuries ...

User comments : 0

More news stories

Clippers and coiners in 16th-century England

In 2017 a new £1 coin will appear in our pockets with a design extremely difficult to forge. In the mid-16th century, Elizabeth I's government came up with a series of measures to deter "divers evil persons" ...

Making graphene in your kitchen

Graphene has been touted as a wonder material—the world's thinnest substance, but super-strong. Now scientists say it is so easy to make you could produce some in your kitchen.