Parabolic Lenses

Deep cell parabolic lenses are used for two reasons. Compared to standard acrylic lenses on fluorescent fixtures, they reduce glare. This is especially desirable when computer video displays are used in a space, but is generally preferred because it reduces eye strain. These lenses are also more efficient. A three tube fixture with a deep cell parabolic lens produces as much light as a four lamp fixture with an acrylic lens. This translates into reduced electrical costs.

Deep cell parabolic lens are 2 1/2 to 4 inches deep. They are made of polished aluminum parabolic reflectors on a grid of about six inches each way. Many newer buildings may provide these lenses as "building standard."

© 1996 Davis Associates Architects & Consultants, Inc.
53 West Jackson Boulevard, Chicago, IL 60604-3606
Phone (312)922-6050
Write us Write us