infrared photography(redirected from Infra-red photography)
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(Photography) photography using film with an emulsion that is sensitive to infrared light, enabling it to be used in misty weather, in darkened interiors, or at night. It has applications in aerial surveys, the detection of forgeries, etc
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Photography employing an optical system and direct image recording on film sensitive to near-infrared wavelength (infrared film). (Note: Not to be confused with "infrared imagery.")
Dictionary of Military and Associated Terms. US Department of Defense 2005.