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A light fixture (US English), light fitting (UK English), or luminaire is an electrical lighting device containing one or more light sources, such as lamps, and all the accessory components required for its operation to provide illumination to the environment. [1] All light fixtures have a fixture body and one or more lamps.
Two modern electric lamps with lampshades. A lampshade is a fixture that envelops the light bulb on a lamp to redirect the light it emits. The shade is often affixed onto a light fixture to reduce the intensity of the light to observers, shield the light from a harsh environment, or for decoration by altering the color or creating shadows.
Cylinder blown sheet is a type of hand-blown window glass. It is created with a similar process to broad sheet, but with the use of larger cylinders. In this manufacturing process glass is blown into a cylindrical shape by a glass blower. The ends of the cylinder are cut off and a cut is made down the side of the cylinder.
The origin of the glass chandelier is unclear, but some scholars believed that the first glass chandelier was made in 1673 in Orléans France, where a simple iron rod was encased in multi-coloured glass with glass arms attached. [47] By the turn of the 18th century, glass chandeliers were produced in France, England, Bohemia, and Venice. [47]
The trim is the visible portion of the light. It is the insert that is seen when looking up into the fixture, and also includes the thin lining around the edge of the light. [1] The housing is the fixture itself that is installed inside the ceiling and contains the lamp holder.
Incandescent bulbs have a shorter life than most other lighting, an important factor if replacement is inconvenient or expensive. Some types of lamp, including incandescent and fluorescent, emit less light as they age; this may be an inconvenience, or may reduce effective lifetime due to lamp replacement before total failure.
The glass chandeliers in the Bath Assembly Rooms are some of his most notable works and are marked "Parker, Fleet Street, London. [ 2 ] Parker also specialized in manufacturing glass for scientific instruments: William Parker and Son, of Fleet Street, London, supplied British chemist Joseph Priestley with lenses and bell jars for many of his ...
A graduated cylinder, also known as a measuring cylinder or mixing cylinder, is a common piece of laboratory equipment used to measure the volume of a liquid. It has a narrow cylindrical shape. Each marked line on the graduated cylinder represents the amount of liquid that has been measured.
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