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All visible colors disappear on 5060 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.
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In case of the longer wavelength, lower straying at the surface and thus a better screening of the test object is to be expected, however the sensitivity of common CCD bgk sensors is increasingly reduced. The wavelength range from approximately nm to 1 mm, i.
It is therefore capable of penetrating deeper into the material and generates fewer surface reflections bgii short-wave light. The optics no longer consists of normal glass, but are made of materials like germanium.
When using IR radiation it is sometimes even possible to look through an object.
As IR radiation is 0506 visible to the human eye, it can be applied particularly well at workstations where normal light would be disturbing.
All visible colors except black, very dark colors with black admixtures and metallic colors disappear.
In industrial machine vision, however, most of the applications are located in the near infrared range, which comprises the spectral range from to nm.
Bright colors appear brightthe dark colors are normally dark IR LED with nm All visible colors except black, very dark colors with black admixtures and metallic colors disappear. Therefore preferably LEDs with a range of bgj.
IR illumination The wavelength range from approximately nm to 1 mm, i. Daylight shot for comparison Daylighht – Mono8 Daylight.
For longer-wave IR ranges, Peltier-cooled sensors 55006 special semiconductor materials must be used. Longer-wave radiation is electromagnetic radiation and therefore oscillates less frequently than shorter-wave radiation and thus generates less interaction with the material.
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IR radiation is often also called thermal radiation. Daylight shot for comparison Daylight – Mono8 Daylight. Bright colors appear brightthe dark colors are normally dark IR LED mit nm All visible colors disappear 50006 banknote and credit card except for black and special security features Daylight – RGB Colour image.
In the ngi 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.