Prismatic Holophane Bowl Pendant
£2,800
With a hooked ring mount, chains and a three hook hanger.
England, circa 1920
Product Description
With a hooked ring mount, chains and a three hook hanger
England, circa 1920
The word Holophane coming from the Greek 'holos' for whole, and 'phane' for light. The Holophane lampshade gave an even light by using the principle of a Fresnel lighthouse lens, the invention of which is credited to Augustin-Jean Fresnel (1788-1827), a scientist and French commissioner for lighthouses, and was first used in 1823 at Cordouan in the Gironde estuary. Borosilicate glass was used, also known as Pyrex, which has a very low coefficient of thermal expansion making the lampshade very resistant to thermal shock and stress. needed strong and efficient factory lighting to make night shifts possible and enable workers to fabricate precise parts requiring brightly lit conditions
In 1896 a British company licensed Holophane's patent and started Holophane Ltd in the UK
England, circa 1920
The word Holophane coming from the Greek 'holos' for whole, and 'phane' for light. The Holophane lampshade gave an even light by using the principle of a Fresnel lighthouse lens, the invention of which is credited to Augustin-Jean Fresnel (1788-1827), a scientist and French commissioner for lighthouses, and was first used in 1823 at Cordouan in the Gironde estuary. Borosilicate glass was used, also known as Pyrex, which has a very low coefficient of thermal expansion making the lampshade very resistant to thermal shock and stress. needed strong and efficient factory lighting to make night shifts possible and enable workers to fabricate precise parts requiring brightly lit conditions
In 1896 a British company licensed Holophane's patent and started Holophane Ltd in the UK
Code:
11118
Further Information
Details & Dimensions
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H 73cm x Dia. 38cm
H 28¾" x Dia. 14.97"
H 28¾" x Dia. 14.97"
