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Peter Cooper Hewitt (May 5, 1861 – August 25, 1921) was an American electrical engineer and inventor, who invented the first mercury-vapor lamp in 1901. [1] Hewitt was issued U.S. patent 682,692 on September 17, 1901. [2] In 1903, Hewitt created an improved version that possessed higher color qualities which eventually found widespread ...
Cooper Hewitt lamp, 1903 Production of high-pressure mercury-vapor lamps, 1965. Charles Wheatstone observed the spectrum of an electric discharge in mercury vapor in 1835, and noted the ultraviolet lines in that spectrum. In 1860, John Thomas Way used arc lamps operated in a mixture of air and mercury vapor at atmospheric pressure for lighting. [4]
The Cooper-Hewitt Museum Library includes an E. F. Caldwell & Co. Collection with more than 50,000 images, of which roughly 37,000 are black-and-white photographs and approximately 13,000 are original design drawings of lighting fixtures and other metal objects produced by the company from the late 19th to the mid-20th century. [7]
The Cooper Hewitt is the only Smithsonian museum dedicated to design, with past exhibitions ranging from fashion, architecture, textiles, and furniture—any tool that touches human life. Their ...
Cooper Hewitt may refer to: Peter Cooper Hewitt (1861–1921), American electrical engineer, inventor of the mercury-vapor discharge lamp Cooper Hewitt, Smithsonian Design Museum , a museum of the Smithsonian Institution dedicated to design
The event, which took place at Cooper Hewitt, Smithsonian Design Museum in New York City, honored Shonda Rhimes, Anitta, Mariska Hargitay and Amy Schumer, and was hosted by comedian Amber Ruffin.
At about the same time that Moore was developing his lighting system, Peter Cooper Hewitt invented the mercury-vapor lamp, patented in 1901 (US 682692 ). Hewitt's lamp glowed when an electric current was passed through mercury vapor at a low pressure. Unlike Moore's lamps, Hewitt's were manufactured in standardized sizes and operated at low ...
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