Keywords: Ion spectral line radiation from a krypton arc lamp.JPG en This photo shows the spectral line radiation from a krypton arc lamp While the light looked almost white to the human eye the camera images the very strong infrared line at 820 nanometers as purple own 20 10 22 January 2010 UTC Zaereth talk Zaereth en Original upload log en wikipedia ftcg page en wikipedia Ion_spectral_line_radiation_from_a_krypton_arc_lamp JPG wikitable - 20 12 22 January 2010 2 792 × 1 004 573 074 bytes Zaereth w en <nowiki> cropped excess space </nowiki> - 20 10 22 January 2010 3 072 × 2 304 1 572 353 bytes Zaereth w en <nowiki> This photo shows the spectral line radiation from a krypton arc lamp While the light looked almost white to the the camera images the very strong infrared line at 820 nanometers as purple I ~~~ crea </nowiki> Check categories 2015 May 17 Arc lamps |