Used Coemar
Founded in 1933, Coemar Spa is a developer, manufacturer, and seller of lighting products and industry innovation for entertainment, architectural, and commercial applications, guaranteeing unique professional pre-sale and post-sale services. Coemar, whose headquarters are based in Castel Goffredo (MN), Italy, has grown to over 400 employees/associates around the globe, with distribution throughout almost 70 countries.
COEMAR USA (formerly Tracoman Inc.) was formed for its second run in 1999 by industry veteran GERARD COHEN, who initially struck gold with Tracoman Inc. the first time around.
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...
Ohm - A unit of measurement for the electrical resistance equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals. One ohm is the resistanc. Used . e in a circuit when one volt maintains a current of one amp. The unit, originally ohma or ohmad, was first used by Charles Tilston Bright and Latimer Clark in 1861 and is still in use today.. Used . ...
Scaffolding - Scaffolding is a temporary platform or framework, either supported from below or suspended, that is used to support people and material during the set up and deconstruction of a stage or venue.
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Watt - An international system for the measurement of the amount of power used by a device, usually electrical in nature, equal to one joule per second or one ampere of current flowing at one volt. The watt. Used . is named after James Watt for his contributions to the development of the steam engine and in turn its contribution to electrical power.. Used . ...
XY - A stereo recording technique using two identical cardioid or directional microphones placed next to each other at an angle of 90 degrees. This method is employed to overcome the coverage problems of . Used . AB recording. The main disadvantage being that audio from the center of the stage arrives at a 45 degree angle to the mics where the response is not as efficient leaving an apparent gap in t. Used . he stereo field. ...
Used Color Changers
Color changers are lighting accessories used by lighting technicians in concerts, theaters and film studios, to remotely adapt the color of the light beam that their stage lighting equipment projects.
There are two types of color changers in use today. Traditional color changers are called color scrollers, which are a type of mechanical equipment that positions plastic gels in front of the light beam. The light travels through the gel and thus the color of the light beam is changed. These color changers are fitted to the end of the light fixture, and so they do not actually affect the way the light beam is produced.
More popular these days is the LED color changer, which employs an RDM protocol and uses smaller LED screens to change the color of the light beam. The LED color changer is proving to be popular, as it is considered easier to use and can provide more information to the lighting operator (it can provide diagnostic information). LED color changers offer a lot more versatility as well, as they include features such as a light sensor, voltage sensor, temperature sensor, gel string sensor, fan control, and self-testing abilities.
Color changers come in three forms: Single string scrollers, dual string scrollers and CYM color mixing scrollers. Single string color changers are the most common type, but they only have one string of colors. Dual string color changers have two strings of color, while the CYM scrollers (called “true color changers”) operate with three color strings.