Fresnel Lens - A Fresnel lens is a type of lens invented by Augustin-Jean Fresnel. Originally developed for lighthouses, the design enables the construction of lenses of large size and short focal length without th. Used GrandMA Ultra Light. e weight and volume of material which would be required in a lens of conventional design.
The Fresnel lens (often pronounced FREZ-nell but usually the original. Used GrandMA Ultra Light. fre-NELL in theatrical and motion picture lighting applications) reduces the amount of material required compared to a conventional spherical lens by breaking the lens into a set of concentric annular sections known as Fresnel
Pattern - Pattern refers to the shape, quality and evenness of a lamp's output. The pattern of light an instrument makes is largely determined by three factors. The first are the specifics of the bulb, reflecto. Used GrandMA Ultra Light. r and lens assembly. Different mounting positions for the bulb (axial, base up, base down), different sizes and shapes of reflector and the nature of the lens (or lenses) b. Used GrandMA Ultra Light. eing used can all affect the pattern of light. Secondly, the specifics of how the lamp is focused affect its pattern. In Ellipsoidal Reflector Spotlights (ERS) and their derivatives (see below), there are two beams of light emit...
Illumination - The simple ability to see what is occurring onstage
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Moving Lights - Moving lights or intelligent fixtures were originally implemented in 1972, but the first computer-controlled stage lighting fixtures began to gain widespread acceptance in the concert industry in the . Used GrandMA Ultra Light. early 1980's. As the digital age progressed, the cost of these fixtures was reduced and they slowly started being used in more 'traditional' theatrical environments. Intell. Used GrandMA Ultra Light. igent fixtures are currently used in almost all major theatrical productions.
Usually relying on compact arc lamps as a light source, these fixtures generally use stepper motors connected to varying internal devices...
Lighting - Lighting or stage lighting is a tool and art form in the production of theater, dance, opera and other performance arts. Several different types of stage lighting instruments are used in the pursuit o. Used GrandMA Ultra Light. f the various principles or goals of lighting ranging from simple illumination to mood setting. Lighting also applies architectural accents to add color or shading to indo. Used GrandMA Ultra Light. or and outdoor settings....