Lighting Design Guide

Seven steps should be considered when designing or renovating a lighting system. These steps are:

1. Improve the visual quality of the task. Identify specific visual tasks and recommend appropriate illuminance, including task lighting.
2. Improve geometry of space, cavity reflectance. Use light and color of the room to increase the use of natural light; rearrange furniture for optimal lighting.
3. Improve lighting quality. Cut veiling reflections through more indirect light distribution and reduce glare.
4. Optimize lighting quantity. Balance levels of ambient and task lighting and ensure adequate light levels for tasks being performed.
5. Harvest/distribute natural light. Daylighting improves the visual environment and results in increased productivity and energy savings. It is important to shade windows to prevent glare and heat gain and control the amount of daylight entering the building. Daylight can be redirected to where it is needed and be integrated with electric lights.
6. Optimize technical equipment. Lamps, ballasts, reflectors and other technology must be optimized for maximum performance.
7. Control, maintain, train. Proper maintenance of equipment is a crucial component to keeping technology in the best shape it can be.

Additional information

For additional information on lighting design optimization, see:
• Mark S. Rea, Rennselaer Polytechnic Institute. Illuminating Engineering Society of North America Lighting Handbook. 2000.

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