Abstract

In the field of stage and studio lighting many stage lighting designers use colored gels with spot or flood lights to set the mood or ambiance of a theater stage. The gels are versatile and cost effective. Spot and flood lights that incorporate cold mirror reflectors or hot minor filters have increased the lifespan of these low melting point gels. However, in the industry, gels that are of a highly saturated color of blue or green have a limited lifespan when used with a high intensity spot light. The gels have a tendency to bleach and bum after short periods of time. This paper will show how the use of a visible wavelength filter incorporated into existing spot lighting systems increases the lifespan of a saturated green or blue colored gel while not affecting their perceived color.

© 1998 Optical Society of America