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infrared filter

   Also found in: Wikipedia 0.01 sec.
infrared filter [¦in·frə¦red ′fil·tər]
(optics)
A substance or device which is highly transparent to infrared radiation at certain wavelengths while absorbing other types of electromagnetic radiation.
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2]) views the outside world through an infrared filter window and is highly absorbing in the infrared.
Yet another clear sky detector by Dick, Sam / Journal of the British Astronomical Association
The colours blue, green, and red represent the blue, visible-light, and infrared filters respectively.
Hubble out of trouble by guardian.co.uk / guardian.co.uk
Laser light unit is built-in with an infrared filter that helps lessen the intensity of light coming in contact with the teeth during the treatment.
Teeth Whitening Systems Is It Worth the Cost? by Nicholas Tan / Health, general community
 
 
 
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