Human Factors in Lighting |
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adaptation luminance appearance approach aspect average road surface background Capenhurst changes CIE Publication colour judgement Colour Rendering Colour Rendering Index colour temperature considered daylight defect dimensions disability glare disc discomfort glare discrimination driver effect of lighting examined experience exposure factors fatigue field fixation fluorescent lamp fovea Glare Index glare source headlights illuminance important incandescent lamp increase inspection interior lighting involved Landolt ring light sources lighting criteria lighting installations limited luminaires luminance cd luminous efficacy luminous flux luminous intensity mean measure method number of different objects observers occur offices photopic problem produced radiant flux radiation range ratio reading recommendations road surface luminance roadway lighting shown in Fig shows spatial frequencies specific spectral emission standard sunlight target threshold contrast uniform values variables veiling reflections Visibility Level vision visual acuity visual detection lobe visual performance visual system wavelength whilst windowless