The Optikon Corporation Ltd.
cal-SPOT 401 Calibrated Spot Photometer
Our cal-SPOT 401 is a calibrated spot measuring brightness meter, designed with accuracy and ease-of-use in mind. Using a silicon photodiode with photopic filter, the cal-SPOT 401 has human-eye response, and with no magnification, can be used with both eyes open. With a 1 degree measuring field, and a 12 degree viewing field, and a working distance of 8" to infinity, this meter measures luminance from 0.1 to 400,000 cdm/m2. The cal-SPOT 401 comes complete with it's own individual calibration certificate certified to NIST/NRC Standards. Marketed through our US sister company, The Cooke Corporation, it is used by lighting professionals world-wide. |  |