Ads
related to: mercury vapor lights wikipedia
Search results
Results From The WOW.Com Content Network
A 175-watt mercury-vapor light approximately 15 seconds after starting. A closeup of a 175-W mercury-vapor lamp. The small diagonal cylinder at the bottom of the arc tube is a resistor which supplies current to the starter electrode. A mercury-vapor lamp is a gas-discharge lamp that uses an electric arc through vaporized mercury to produce ...
Germicidal lamps are simple low-pressure mercury vapor discharges in a fused quartz envelope. Gas-discharge lamps are a family of artificial light sources that generate light by sending an electric discharge through an ionized gas, a plasma. Typically, such lamps use a noble gas (argon, neon, krypton, and xenon) or a mixture of these gases.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Mercury_vapor_lighting&oldid=398550438"https://en.wikipedia.org/w/index.php?title=Mercury_vapor_lighting&oldid
The light-producing element of these lamp types is a well-stabilized arc discharge contained within a refractory envelope arc tube with wall loading in excess of 3 watts per square centimetre (19 W/in 2). Mercury-vapor lamps were the first commercially available HID lamps.
The mercury-vapor lamp was superior to the incandescent lamps of the time in terms of energy efficiency, but the blue-green light it produced limited its applications. It was, however, used for photography and some industrial processes. Mercury vapor lamps continued to be developed at a slow pace, especially in Europe.
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]
Mercury vapors are used for applications with high current, e.g. lights, mercury-arc valves, ignitrons. Mercury is used because of its high vapor pressure and low ionization potential. Mercury mixed with an inert gas is used where the energy losses in the tube have to be low and the tube lifetime should be long.
The first plasma lamp was an ultraviolet curing lamp with a bulb filled with argon and mercury vapor, developed by Fusion UV. That lamp led Fusion Systems to develop the sulfur lamp, which concentrates microwaves through a hollow waveguide to bombard a bulb filled with argon and sulfur.