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> Essential requirements for good lighting / Visual needs / Visual performance
Visual performance enables working people to perform visual tasks even under difficult conditions and over longer periods of time. Visual tasks are perceived by
High visual performance means reliable contrast vision, high visual acuity and speed of perception as well as rapid and reliable recognition, and safety in the occupational sense.
With increasing difficulty of the visual task, requirements for the quality of lighting.
Example: Lighting of traffic zones and work places – e.g. in tool manufacturing or precision mechanical mounting, at observation desks, in airport towers, in power supply plant control centres or supermarkets – is mainly planned and evaluated with regard to the respective required visual performance. The basis for planning are essentially the quantitative quality criteria for lighting (see chapter "Illumination level" and chapter "Limitation of direct and reflected glare") which are defined by pertinent standards and recommendations.
Visual needs Visual comfort
Visual performance Visual comfort Visual ambiance
Introduction Visual needs Need for orientation Non visual needs
Guidelines Overview Work places Visual task area Surrounding area Illuminance Luminance distribution Limitation of glare Lighting direction, modelling Aspects of colour Flicker and stroboscopic effects Daylight
Maintenance Factor Light and safety at work Light and non-visual effects Light and economy Light and environment Lighting design Lighting measurement Emergency lighting
Lighting of traffic zones and geneal areas in buildings Lighting of industrial activities and crafts Lighting of offices and VDU workstations Lighting of design and CAD offices Lighting of sports facilities Lighting of health care facilities Lighting of geriatric care facilities and nursing homes Lighting of public areas Lighting of salesrooms Lighting of educational facilities Lighting of traffic areas Lighting of car parks Ligthing of further indoor spaces
Luminaires The enhanced concept of quality Photometric classification Photometric properties Photo biology safety Mounting and electrical connection Luminaire labelling Luminaire operation LED luminaire operation Operation of FL luminaires Electrical safety Fire protection Electromagnetic safety Mechanical safety Chemical and miscellaneous impact Acoustic properties Ventilation properties
Firehazardous locations Room with bathtubs and showers Swimming baths Exterior installations Agricultural and gardening plant locations Food industry Clean rooms Requirements on mediacal rooms Emergency light installations
Luminaire selection chart
Light management application and function Presence detection Daylight-dependent regulation Interfaces Building management, KNX and other bus systems
Light sources types Characteristics of light sources
ABC, DF, G, ILM, NO, P, QRSUV, W
Subject index
StandardsGuidelines and instructionsEuropean directives and regulationsFurther publications
Lighting societies
Standardisation institutes
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