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Photonics Buyers' Guide / Infrared Collimators
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The Photonics Buyers' Guide is a comprehensive resource for verified providers of Infrared Collimators. Profiles and contact information for manufacturers and suppliers are provided by the companies and verified by our editors. If you have updated information about any of the organizations listed, please contact us.
Glossary
  • collimator An optical instrument consisting of a well- corrected objective lens or mirror with a light source and or object/image (i.e. illuminated slit or retical) at its focal plane. Collimators are used to calibrate and align optical devices and...
  • lens testing equipment Devices such as spherometers, lensometers, lens benches, knife-edge devices, interferometers and MTF equipment for testing the single elements of a lens and the completed lens assembly.
  • reflective coating Thin-film coating, single or multilayer, that is applied to a substrate to increase its reflectance over a specified range of wavelengths. Metal film, transparent or opaque, is the oldest form of reflective coating.
  • focal length The focal length of a lens is the distance between the lens's optical center (or principal point) and the image sensor or film when the lens is focused at infinity. In simple terms, it is the distance from the lens to the point where parallel rays...
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