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dc.contributor.author Baumbach, J
dc.contributor.author Coetzee, EM
dc.contributor.author Sieberhagen, RH
dc.contributor.author Jonker, CR
dc.date.accessioned 2011-12-13T14:02:20Z
dc.date.available 2011-12-13T14:02:20Z
dc.date.issued 2011-07
dc.identifier.citation Baumbach, J, Coetzee, EM et al. 2011. Dark adaptation time for humans, after viewing a target illuminated with two different types of light sources. 27th session of the CIE (International Commission on Illumination), Sun City, South Africa, 11-15 July 2011 en_US
dc.identifier.isbn 9783901906992
dc.identifier.uri http://hdl.handle.net/10204/5404
dc.description 27th session of the CIE (International Commission on Illumination), Sun City, South Africa, 11-15 July 2011 en_US
dc.description.abstract The differences in scotopic recovery time between LED illuminators and a tungsten-halogen illuminator was investigated. The spectral distribution and the luminous intensity distribution of all the supplied illuminators were measured. The scotopic recovery time was measured, using a low-contrast USAF bar target and a low-level light source for background illumination. We were not able to measure a significant difference in scotopic recovery time, after the target was illuminated with the two light sources. The measured luminance levels in the laboratory are expected to differ substantially to those in the field due to the low reflectance of natural targets. Therefore, laboratory measurements should be complimented by field measurements. Our results, supported by a literature study, highlighted the necessity for further research using the current methods, as well as the validation of results by using an adaptometer. en_US
dc.language.iso en en_US
dc.relation.ispartofseries Workflow request;6808
dc.subject Dark adaptation times en_US
dc.subject Illumination en_US
dc.subject Scotopic recovery time en_US
dc.subject Tungsten-Halogen en_US
dc.subject Spectral distribution en_US
dc.subject Luminous Intensity en_US
dc.subject LED illuminators en_US
dc.title Dark adaptation time for humans, after viewing a target illuminated with two different types of light sources en_US
dc.type Presentation en_US


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