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Document ID (ISN)109191
CIS number 09-180
ISSN - Serial title 0019-8366 - Industrial Health
Year 2008
Convention or series no.
Author(s) Lin C.J., Feng W.Y., Chao C.J., Tseng F.Y.
Title Effect of VDT workstation lighting conditions on operator visual workload
Bibliographic information Mar. 2008, Vol.46, No.2, p.105-111. Illus. 28 ref.
Abstract This study investigated the effects of illumination on visual workload in visual display terminal (VDT) workstation tasks. Ten volunteer students performed VDT signal detection tasks under four light colors (red, blue, green and white) and two ambient illumination levels (20 lux and 340 lux). The dependent variables were the change of critical fusion frequency (CFF), visual acuity, reaction time, error rates and subjective visual comfort. Results showed that both visual acuity and subjective visual fatigue were significantly affected by the color of light. The illumination had significant effect on CFF thresholds and reaction times. Subjects prefer to perform VDT task under blue and white lights than green and red. Implications of these findings are discussed.
Descriptors (primary) illumination levels; visual displays; visual comfort; lighting and colour; visual tasks
Descriptors (secondary) subjective assessment; visual fatigue; visual acuity; comfort assessment; workload assessment; man-computer interfaces
Document type D - Periodical articles
Country / State or ProvinceTaiwan (China)
Subject(s) Occupational physiology
Lighting, colour and vision
Broad subject area(s) Physical hazards
Browse category(ies) Non-ionizing radiation
Lighting and colour