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Abstract VR8a Moving Mirror Scanners

Abstract AVR Moving Mirror Scanners

Ellipsoidal Reflector Spotlight - ERS is an acronym standing for Ellipsoidal Reflector Spotlight. These are sometimes known by their brand names, especially Leko, short for Lekolite, the name given to them by their inventors, Joseph L. Used . evy and Edward Kook. ETC's Source Four has become a very popular ERS throughout the industry, and some people use the term Source Four to refer to spotlights in general. They come in many for. Used . ms, and are the most numerous and important instrument type in use. The flexibility of the ERS allows them to fulfill the bulk of the lighting roles in the theatre, from area lighting to close specials, from l...

Digital Projection - A digital projection display system is a computerized display that projects an image, often a logo, on a screen, building or other architectural features like the court in a sports arena. Such devices. Used . are commonly used in presentations or as promotional devices. These displays use a very bright light to project the image, and can generally correct any curves, blurriness, and other inconsi. Used . stencies in the image....

Arc Lamp - An arc lamp is a device that produces light by the sparking (or arcing, from voltaic arc or electric arc) of a high current between two carbon rod electrodes. The rods are touched and then slowly draw. Used . n apart; as the rods separate the current is "struck" and arcs across the gap in a bright, ionized path. The arc produces a temperature of several thousand degrees, and the tips of the carbon. Used . rods are heated to incandescence, creating light. The rods are slowly vaporized during the process and need to be regularly adjusted to maintain the arc. The concept was first demonstrated by Sir Humphry Davy...

Incandescent light bulb - The incandescent light bulb (archaically known as the electric lamp) uses a glowing wire filament heated to white-hot by electrical resistance, to generate light (a process known as thermal radiation . Used . or incandescence). The bulb is the glass enclosure which keeps the filament in a vacuum or low-pressure noble gas, or a halogen gas in the case of quartz-halogen lamps (see below) in order to. Used . prevent oxidisation of the filament at high temperatures. In Australia and South Africa a light bulb is also called a light globe.

Because of its poor efficiency and yellowish color, it is being ...

Automated Light - Automated Lights were originally used in 1972, but the first computer-controlled stage lighting fixtures began to gain widespread acceptance in the concert industry in the early 1980's. As the digital. Used . age progressed, the cost of these fixtures was reduced and they slowly started being used in more 'traditional' theatrical environments. Intelligent fixtures are currently used in almost all. Used . major theatrical productions.

Usually relying on compact arc lamps as a light source, these fixtures generally use stepper motors connected to varying internal devices to manipulate the light bef...

Moving Mirror Scanners

Moving Mirror Scanners are often used for club lighting, as well as for stage lighting, and are quite similar in concept to moving lights in that they offer increased versatility and can be used to create more complex special effects than conventional stage lights. Scanners have actually been around for years – indeed, they were the first ever kind of moving lights, preceding the more popular intelligent lights that are now used today. The main different between moving mirror light scanners is that, unlike more modern moving lights that have mechanical light fixtures, scanners rely on “mirrors that move” to direct the light beam, rather than moving light components. The fixture of the scanning head light doesn’t actually move by itself. Rather, it contains a built in mirror fixed to a pivot point that moves around and directs the beam of light which is focused onto it. Much like a moving lights, scanners or club lighting can be pre-programmed before a production so that the operator doesn’t have to control the light through the duration of the show, though of course some skilled operators prefer to operate the lights manually, during the performance, if they have the experience to do so. Scanners are available in a wide range of different sizes, and offer many different types of features to lighting technicians. Features include high-resolution stepping, high-resolution glass gobos with indexing and rotation, color mixing, mechanical dimming, remote focus, electronic strobing and many more.