who is inventd flourescent lamp and when?

Answer 1

A fluorescent lamp is a gas-discharge lamp that uses electricity to excite mercury vapor in argon or neon gas, resulting in a plasma that produces short-wave ultraviolet light. This light then causes a phosphor to fluoresce, producing visible light.

Unlike incandescent lamps, fluorescent lamps always require a ballast to regulate the flow of power through the lamp. In common tube fixtures (typically 4' or 8' in length), the ballast is enclosed in the fixture. Compact fluorescent light bulbs may have a conventional ballast located in the fixture or they may have ballasts integrated in the lamps, allowing them to be used in lampholders normally used for incandescent lamps.

The earliest ancestor of the fluorescent lamp is probably the device by Heinrich Geissler who, in 1856, obtained a bluish glow from a gas which had been sealed in a tube and excited with an induction coil. Though he is remembered as a physicist, Geissler was trained as a glassblower.

At the 1893 World's Fair, the World Columbian Exposition in Chicago, Illinois displayed Nikola Tesla's fluorescent lights.

In 1894, D. McFarlane Moore created the Moore lamp, a commercial gas discharge lamp meant to compete with the incandescent light bulb of his former boss Thomas Edison. The gases used were nitrogen and carbon dioxide emitting respectively pink and white light, and had moderate success.

In 1901, Peter Cooper Hewitt demonstrated the mercury-vapor lamp, which emitted light of a blue-green color, and thus was unfit for most practical purposes. It was, however, very close to the modern design. This lamp had some applications in photography where color was not yet an issue, thanks to its much higher efficiency than incandescent lamps.

Edmund Germer and coworkers proposed in 1926 to increase the operating pressure within the tube and to coat the tube with fluorescent powder which converts ultraviolet light emitted by a rare gas into more uniformly white-colored light. Germer is today recognized as the inventor of the fluorescent lamp.

General Electric later bought Germer's patent and under the direction of George Inman brought the fluorescent lamp to wide commercial use by 1938.

Answer 2

By the time the GE Research Lab really got off the ground in in the 1910s GE had learned it's lesson and required engineers and scientists to document everything they worked on each day. Therefore when we say Edmund Germer, George Inman and Richard Thayer invented the fluorescent lamp as we know it, that information is absolutely solid. Every step of work is documented in dated journals located in Germany (for Germer) and the United States. Patents were filed once working models were created and executives convinced that the invention was worth the legal fees.

Answer 3

i forgot, but i sure i know that question.