Published at Monday, October 30 2017 14:21:12 by Howard Blount for Lighting Fixtures
This glass they worked with was so unique, as it was soda glass (famed for its extraordinary lightness) and was a complete contrast to all different types of glass produced in the world at that time. An incredible amount of skill and time was required to precisely twist and shape a chandelier. This new type of chandelier was called "ciocca" literally bouquet of flowers, for the characteristic decorations of glazed polychrome flowers. The most sumptuous of them consisted of a metal frame covered with small elements in blown glass, transparent or colored, with decorations of flowers, fruits and leaves, while simpler model had arms made with a unique piece of glass. Their shape was inspired by an original architectural concept: the space on the inside is left almost empty since decorations are spread all around the central support, distanced from it by the length of the arms. One of the common use of the huge Murano Chandeliers was the interior lighting of theatres and rooms in important palaces.
In the mid-19th century, as gas lighting caught on, branched ceiling fixtures called gasoliers (a portmanteau of gas and chandelier) were produced, and many candle chandeliers were converted. By the 1890s, with the appearance of electric light, some chandeliers used both gas and electricity. As distribution of electricity widened, and supplies became dependable, electric-only chandeliers became standard. Another portmanteau word, electrolier, was formed for these, but nowadays they are most commonly called chandeliers. Some are fitted with bulbs shaped to imitate candle flames, for example those shown below in Epsom and Chatsworth, or with bulbs containing a shimmering gas discharge. The world's largest English Glass chandelier,(Hancock Rixon & Dunt and probably F. & C. Osler) is located in the Dolmabahçe Palace in Istanbul. It has 750 lamps and weighs 4.5 tons. Dolmabahçe has the largest collection of British and Baccarat crystal chandeliers in the world, and one of the great staircases has balusters of Baccarat crystal. More complex and elaborate chandeliers continued to be developed throughout the 18th and 19th centuries, but the widespread introduction of gas and electricity had devalued the chandelier's appeal as a status symbol.
The more transparent the lighting fixture is, the higher efficacy. Shading the light will normally decrease efficiency but increase the directionality and the visual comfort probability.
The PH-lamps are a series of light fixtures designed by Danish designer and writer Poul Henningsen from 1926 onwards. The lamp is designed with multiple concentric shades to eliminate visual glare, only emitting reflected light, obscuring the light source.