Infrared lens helpful in lifesaving pedestrian

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Infrared detector

There are already technologies to detect pedestrians and prevent pedestrians in various versions.The problem is the cost of equipment – about $ 5,000 – which has restricted their use to the most luxurious car models.The heart of this equipment is an infrared detector, ie, the heat emitted by living beings.

At least that piece of equipment – the infrared detector – now has a real dip in costs.“We have developed a manufacturing process of lenses that allow us to lower the cost of these components in more than 70%,” said Dr Helen Muller, IWM Institute in Germany.

Lenses stamped

Typically these lenses are made of crystalline materials, such as germanium, zinc selenide or zinc sulfide.The problem is that these raw materials are already very expensive.And they can only be mechanically processed, with steps of grinding, polishing and finishing around with diamond tools, all essential steps to give the precise format lenses.

Instead of crystalline materials, German engineers an amorphous material used, a kind of glass, chalcogenide called.And since the various stages of intensive work, alternative materials can be molded at low temperature, which means that its shape can be given by stamping using a press.

Unfinished

The use of such a high accuracy does not require any final finishing work.According to the researchers, the low cost of infrared lens will enable a host of other technology applications such as inspection processes, detection of “leaking energy” in buildings and monitoring of elderly people.

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