Night vision assistant
Night View Assist (Engl. Night View Assist ) is the name for an optical system ( thermal camera or infrared camera ), the motor vehicle drivers a greater visibility in the darkness provides.
While low beam headlights only allow a limited range of vision, this night vision technology has a range that corresponds to that of normal high beam , but does not dazzle oncoming traffic, as the infrared light used with this technology is not visible to people.
The first passive night vision assistant in a production car was introduced in the Cadillac DeVille in 2000 and was available until 2004 (not in Germany).
The Mercedes-Benz 221 series introduced the first night vision assistant available in Germany in 2005.
Active night vision assistant
Active systems ( infrared headlights ) emit infrared light and process the reflected infrared light with a special camera into a black and white image, which is projected onto a display in the dashboard or into a head-up display .
With an infrared camera, the entire area of the high beam is shown on the central display as a grayscale image . In contrast to a thermal imaging camera , this system requires additional infrared headlights . These glow - invisible to humans - with permanent high beam, so that objects without heat (e.g. branches or lost objects) are visible. Another advantage is the image quality, which is inherently significantly worse with thermal imaging cameras. Unlike older systems, newer systems are also able to distinguish people from other moving objects. They are highlighted on the monitor with a frame. A display appears on the monitor of the navigation system or in the driver's field of vision between the speedometer and rev counter .
Passive night vision assistant
.jpg)
In contrast to the active variant, the passive night vision assistant does not have an infrared headlight. The infrared-sensitive camera only picks up the infrared radiation emitted by objects themselves and also displays this as a black and white image on a screen. This mode of operation corresponds to that of a thermal imaging camera , so that warmer objects (e.g. living beings) stand out from their colder (darker ones) on the screen ) Clearly distinguish the surroundings as bright objects.
Individual evidence
- ↑ Nightvision: Blick-Blick ( Memento of the original from December 12, 2008 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Best co-driver: night vision assistant. Retrieved November 10, 2016 .
