An Assessment of the Blackwell visual task evaluator, Model 3X

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TypeTechnical Report
Physical description26 p.
SubjectLighting; visibility; optical measuring instruments; lighting technology; evaluation; visibility meter evaluation; center, surround fields; output control operation; contrast control operation; optical fidelity; adaptation luminance; brightness matches; magnification; pulsing procedure; polarization; Lighting
AbstractThe CIE has recently published a method for assessing the Visibility Level (VL) of realistic visual stimuli (as defined by Commission Internationale de l'Eclairage, 1981). To implement the system, a visibility meter is required; the Blackwell Visual Task Evaluator, Model 3X was designed to be used with the CIE method. At the request of the Chairman of the CIE Technical Committee 3.1 on visual performance, our laboratory undertook an independent evaluation of the instrument. The findings are reported here. While there are several idiosyncratic features of the Visual Task Evaluator, many of these findings are applicable to other visibility meters.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number22960
NPARC number20358449
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Record identifier601537a6-cdfa-40ca-84c5-8eb55b3dd105
Record created2012-07-20
Record modified2016-10-03
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