module 4: Fluorescent lamp quiz

In 1856 – an inventor from Germany; was the first to extensively study the arc tube. His tube was the foundations for all arc discharge lamps including HID lamps.

In 1859 - He first used phosphors on the inside of a glass discharge tube. He was the first to use a phosphor coating.

In 1891 - _____________ created an induction lamp. This lamp had greenish unpleasant phosphors. It was not really a "fluorescent lamp" as we know today because it did not have electrodes.

In _____ - Edmund Germer came very close to developing the modern fluorescent lamp. His lamp used UV rays from mercury vapor. It glowed a greenish color due to his phosphors, but had a short life.

In _____ - George Inman along with Richard Thayer, Eugene Lemmers, and Willard A. Roberts develop the first true fluorescent lamp

In ____ - John M. Anderson developed many improvements in the fluorescent lamp: short arc fluorescent lamp, fluorescent lamp without ballast.

In ____ - John M. Anderson developed many improvements in the fluorescent lamp: short arc fluorescent lamp, fluorescent lamp without ballast.

What is fluorescent lamp ?

     The ionization Mercury vapor produces radiation that activates the fluorescent coating on the inner surface of the glass, fluorescent coating is made of ____________

The common fluorescent lamp is a hot- cathode type which consists of a sealed glass tube provided with a mixture of Mercury vapor and inert gas .