International Electrotechnical Commission

EN integrating sphere  
hollow sphere whose internal surface is a diffuse reflector, as non-selective as possible. Used to determine the total luminous flux (lumen output) of a lighting device

Note1 to entry: An integrating sphere is used frequently with a radiometer or photometer.

[SOURCE: IEC60050-845:1987, 845-05-24]

TC/SC:82Terms     Info     Publications
Published in:IEC 62257-9-5, ed. 2.0 (2013-04) Terms     Info
Reference number:3.17

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