Quantity And Features
Illumination
The amount of light falling on a surface. Unit of measurement: lux (lx).
Luminance
Measurement of the quality of the surface, which is considered as the brightness.
Unit: candela per square meter (cd / m2).
The general background: 200 lux
Office work : 400 lux
Reading work : 600 lux
Working with VDU: 300 lux (normal) or 400-500 lux (high contrast level)
Common problems faced
1. Glare;
- Directly from the light source.
- Indirectly from reflective surfaces.
2. Shadow.
3. Contrast the lack of work and background.
4. The lighting is too bright around the computer screen.
Health Effects
1. Can not see the hazards or dangers:
- See, identify and take steps to avoid hazards such as accidentally stepped on, slipping and collision.
- Safety signs and warnings.
- Color code is as important as electrical wiring.
- Important information from the display engine.
2. Eye strain (Eye strain):
- Also known as - fatigue vision, asthenopia.
- Affect job performance.
3. Bad postures.
4. Flashing or stroboscopic effect.
5. Photo epilepsy.
Methods To Overcome Problems Lighting
1. Use screens, visors, guards (shields).
2. Use curtains or blinds on the windows to reduce glare.
3. Curtains, blinds or use a light barrier as 'tinted glass'.
4. Customize the layout of workstations.
5. Custom lighting like light location.
6. Modify the relevant surface such as walls, tables and so on.
7. Use partitions to reduce reflection.
