O'Reilly logo

Concert Sound and Lighting Systems, 3rd Edition by John Vasey

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

CHAPTER 15

LAMPS

Lamp is the general term for an incandescent light source. A number of lamps are available to provide a wide range of wattage at different voltages (Figure 15–1).

The intensity of a light is determined by the throw, the distance from the light source to the object it is lighting. The intensity is governed by the inverse square law. Once a beam leaves a light, the area illuminated by the beam increases the farther it throws, and the same quantity of light must illuminate a larger area. If the distance between a light and the stage is doubled, the intensity is reduced to one-fourth the original.

TYPES OF INSTRUMENTS  image

Par cans ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required