Radiant Imaging PM-NFMS Near-Field Goniophotometer - Pro-Lite ...
Radiant Imaging PM-NFMS Near-Field Goniophotometer - Pro-Lite ...
Radiant Imaging PM-NFMS Near-Field Goniophotometer - Pro-Lite ...
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<strong>Near</strong> <strong>Field</strong> Goniophotometry<br />
• Luminaires were traditionally measured using a<br />
“far-field” goniophotometer – these require a<br />
large dark room and are expensive<br />
• CCD imaging photometers are now being used to<br />
measure the near-field luminance<br />
• Software scales the near-field luminance to farfield<br />
luminous intensity which is then<br />
manipulated into industry-standard file formats<br />
(EULUMDAT, IESNA)<br />
• <strong>Near</strong>-field goniophotometers are much less<br />
expensive and require a fraction of the space to<br />
operate
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