Human Factors in Lighting |
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Page 157
... increase [ 94 , 95 ] . A further complicating factor is that for some types of inspection work the inspector will have to keep a count of the numbers of specific types of defects occurring . This too will tend to increase search time ...
... increase [ 94 , 95 ] . A further complicating factor is that for some types of inspection work the inspector will have to keep a count of the numbers of specific types of defects occurring . This too will tend to increase search time ...
Page 224
... increases from the level of sleeping , performance on a given task increases ; but as arousal continues to increase , performance starts to fall . In other words , performance shows an optimum . Unfortunately different tasks have their ...
... increases from the level of sleeping , performance on a given task increases ; but as arousal continues to increase , performance starts to fall . In other words , performance shows an optimum . Unfortunately different tasks have their ...
Page 225
... increasing arousal but the possibility of decreasing arousal should not be forgotten . Decreased arousal will also cause a reduction in performance for some tasks and an increase for others , depending on the complexity of the task ...
... increasing arousal but the possibility of decreasing arousal should not be forgotten . Decreased arousal will also cause a reduction in performance for some tasks and an increase for others , depending on the complexity of the task ...
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Common terms and phrases
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