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BGI 5006 PDF

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For longer-wave IR ranges, Peltier-cooled sensors and special semiconductor materials must be used. The optics no longer consists of normal glass, but are made of materials like germanium.

IR illumination

In case of the longer wavelength, lower straying at the bgii and thus a better screening of the test object is to be expected, however the sensitivity of common CCD camera sensors is increasingly reduced.

Therefore preferably LEDs with a range of approx.

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It is therefore capable of penetrating deeper into the material and generates fewer surface reflections than short-wave light. In the range between nm and nm normal monochrome CCD cameras can still be used for inspection, the sensitivity of which indeed increasingly diminishes but is basically sufficient.

In industrial machine vision, however, most of the applications are located in the near infrared range, which comprises the spectral range from to nm. Longer-wave radiation is electromagnetic radiation and therefore oscillates less frequently than shorter-wave radiation and thus generates less bgii with the material.

As IR radiation is not visible to the human eye, it can be applied particularly well at workstations where normal light would be disturbing.

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All visible colors except black, very dark colors with black admixtures and metallic colors disappear. IR illumination The wavelength range from approximately nm to 1 mm, i.

The wavelength range from approximately nm to 1 mm, i. Bright colors appear brightthe dark colors are normally dark IR LED mit nm All visible colors disappear on banknote and credit card 50066 for black and special security features Daylight – RGB Colour image.

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IR radiation is often also called thermal radiation.

When using IR radiation it is sometimes even possible to look through an object. Daylight shot for comparison Daylight – Mono8 Daylight.

IR illumination

All visible colors disappear on banknote and credit card except for black and special security features. Cameras for the evaluation of the medium IR range are called thermographic cameras or thermal imaging cameras.

Daylight shot for comparison Daylighht – Mono8 Daylight. Bright colors appear brightthe dark colors 5060 normally dark IR LED with nm All visible colors except black, very dark colors with black admixtures and metallic colors disappear.