What are the Different Types of Spotlights?
Anyone who has seen a rock and roll show, an award ceremony or a theatre production has experienced the illuminating effects of spotlights. Spotlights are light sources that send out a cone of light. It has a defined conic volume and is used to illuminate objects within this conical volume. Torches, desk lamps and theatre lights are all examples of spotlights but mostly spotlights are used in stage performances. Seven types of spotlights categorized on the basis of their functionality include, the plano convex, ellipsoidal, Fresnel, Parabolic Aluminized Reflector (PAR), PAR Pin, Beam Projector and Followspot spotlights. The plano convex spotlight was first developed in 1870 and is the earliest form of a theatre lighting system using a single lens. The plano convex spotlight uses a plano convex lens which is convex, or round, on one side and flat on the other. This lens is contained in a simple housing that also contains a bulb and a reflector. The ellipsoidal spotlight is the most wide
