Visual performance, visibility and apparent contrast

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Journal titleLighting design + application : LD + A.
Pages2326; # of pages: 4
SubjectLighting; visual perception; lighting technology; terminology; energy conservation; Lighting
AbstractThe applicability of visibility and visual performance studies to lighting design, lighting level recommendations and energy conservation is discussed. A particular distinction is made between the role of apparent or subjective contrast studies and performance studies which measure a score of speed and accuracy. Unambiguous use of the term, visibility, is proposed resulting in a new classification of three viewing regimes: subthreshold, suprathreshold and saturation. Visibility and visual performance terminology is explained in detail to prevent a continuation of the confusion that has hitherto surrounded this subject.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number16506
NPARC number20358676
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Record identifier7cfccbd8-55e6-423d-b431-ca8b4fa35080
Record created2012-07-20
Record modified2016-05-09
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