A profile consists of a lens, lamp (light source), reflector, plus a shutter and gate, which provide very close control over the light’s beam. It is possible to adjust the edge quality of a profile light from very soft to very hard by adjusting the lens.
Profile lights also have the ability to project any shape that is placed in the lantern’s gate, between the lamp and the lens. These shapes are either formed by the shutters or a ‘gobo’ – which is a glass pattern or metal cut-out that is used to project shapes, or to split the light’s beam into a particular pattern.
Standard profile lights have a fixed beam angle, which is shaped using the shutters. Conversely, variable profile lights use two lenses to provide a wider range of beam angles and edge qualities to the light.
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