Lighting
Lighting in one workstation may be appropriate, but for another workstation, that same lighting may be potentially harmful.
Illumination may be too high, too low, or cause glare. Illumination levels above 1000 lux can present problems in the office environment.
Outside lighting is an important factor to consider. Light for outside work should aid production and, at the same time, be high enough to be safe.
Adequate general and local lighting must be provided for rooms, buildings, and work areas during the time of use. Below is a list of factors influencing the adequacy and effectiveness of illumination.
- The quantity of light as specified in American National Standard ANSI All.1-1965 (R1970) , "American Standard Practice for Industrial Lighting."
- The quality of light in terms of freedom from glare, correct direction, diffusion, and distribution.
- Freedom from shadows and extreme contrasts. Place computer monitors at right angles (90 degrees) from outside windows to prevent eye strain.
- All skylights, side windows, lamps, and other accessories which are necessary for illumination must be kept clean and in working order.
The best and least expensive way to determine the level of lighting required for your work areas is to ask an OSHA ergonomics consultant or your workers' compensation insurance carrier consultant.
It's interesting to note that lighting has been used to treat depression associated with light deprivation, and may also affect biological clocks and sleep patterns in humans.
Although controversial, light has been used to maintain alertness and to increase productivity in shift workers.
Knowledge Check Choose the best answer for the question.
4-3. To prevent excessive glare and eyestrain from an outside window, place the computer monitor _____.
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