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 VL3000 Wash. 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) . Used VL3000 Wash. in order to 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 ...
Cue - Generally, a lighting board operator has a cue sheet for each scene, which is a diagram of the board with the faders in their positions as determined by the lighting designer. The operator sets the fa. Used VL3000 Wash. ders into their positions based on the cue sheets. Typically during a cue, the operator sets the next scene. Then, the operator makes the transition between the scenes using the cr. Used VL3000 Wash. oss-fader....
Video - Video is the technology of electromagnetically recording, processing, transmitting, and reconstructing a sequence of images that represent scenes in motion.
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Lens - A lens is a device for either concentrating or diverging light, usually formed from a piece of shaped glass. Analogous devices used with other types of electromagnetic radiation are also called lense. Used VL3000 Wash. s: for instance, a microwave lens can be made from paraffin wax.
The earliest records of lenses date to Ancient Greece, with Aristophanes' play The Clouds (424 BC) men. Used VL3000 Wash. tioning a burning-glass (a convex lens used to focus the sun's rays to produce fire). The writings of Pliny the Elder (23-79) also show that burning-glasses were known to the Roman Empire, and mentions what is possibly t
Intensity - Measured in both lux and lumens. For any given luminaire (lighting instrument or fixture), this depends upon the power of the bulb, the design of the instrument (and its corresponding efficiency), the. Used VL3000 Wash. presence or absence of color gels or gobos, distance from the area to be lit, the color and subtance to be lit, and the neuro-optics of the total scene (that is, the relative cont. Used VL3000 Wash. rasts to other regions of illumination). ...