There are numerous types of theatrical luminaires, which can be roughly grouped into three main categories, according to the complexity of the optical system:
Simple luminaires - Luminaires with a basic simple optical system.which typically produce a fixed light beam.
This category includes floodlights, parcans,
ACL
units and MR units.
Focusable luminaires - Luminaires in which the
beam
angle, and thus the size of the light
beam
and light distribution, can be adjusted. This category includes
lens
spotlights (PC and fresnel), beamlights and focus floodlights.
Complex luminaires - Luminaires with sophisticated optical and mechanical systems which enable control and
independent
adjustment of a variety of light
beam
properties such as size, shape and intensity pattern. This category includes all profile-spots either with fixed lenses or with variable lens.
