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About Glare


    We’ve all experienced glare in our everyday lives: bright lighting fixtures located in your field of view, or sunlight coming through a window. This is known as discomfort glare, and the degree of discomfort inflicted depends on the number, size, position, and luminance of the glare sources. In interior lighting design, we are primarily concerned with discomfort glare from windows and overhead lighting fixtures. Other forms of glare are disability glare and veiling reflections. Disability glare obliterates task contrast, and scatters the light within your eye to the point that visibility is reduced to zero. A common example is glare from a glossy magazine page that makes it impossible to read the page. Veiling reflections, such as lighting fixture ‘images’ on your computer monitor, make it hard to see what is on the screen. The severity of glare in any form is primarily dependent on two factors: the brightness and position of the source.

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