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The glass sample vial of the corrosive and poisonous liquid has been cast into an acrylic plastic cube Methyl methacrylate " synthetic resin " for casting (simply the bulk liquid chemical) may be used in conjunction with a polymerization catalyst such as methyl ethyl ketone peroxide (MEKP), to produce hardened transparent PMMA in any shape ...
Unlike a traditional color scroller, it is installed inside the unit between the lamp assembly and shutters. It provides CMY color mixing via dichroic glass plates, controlled thorough DMX512. It was discontinued in 2004. [6] SeaChanger The SeaChanger line by Ocean Thin Films is a color mixing unit intended to be installed into the ETC Source ...
A "fitter" describes how the lampshade connects to the lamp base. The most common lampshade fitter is a Spider fitter. Spider fitters are set on top of a lamp harp, and secured with a finial. The harp is typically seated below the socket and two arms rise up around the light bulb and join at the top, where it provides resting support for the ...
Miniature lamps may have a wedge base made of glass or plastic. The base may be an extension of the glass envelope of the bulb, with the wire leads of the lamp folded up at the base. Some wedge bases are made of plastic and slipped over the wire leads. A wedge base holds the lamp by spring compression in the socket.
Glass gobos generally offer the highest image fidelity, but are the most fragile. Glass gobos are typically created with laser ablation or photo etching. [24] Plastic gobos or transparency gobos can be used in LED ellipsoidal spotlights. These "LED-only" plastic gobos can be full-color (like a glass gobo), but are far less delicate.
The wires are usually inserted into a plastic base that the bulb is mounted in, and which is often narrower at the tip than at the bulb, giving it a wedge shape and usually ensuring a tight connection, depending on manufacturing tolerances. Some bulbs have no plastic base, and the wires are simply bent up to the sides of the bulb's glass base.
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