What is Plasma lamp?
[[File:Plasma-lamp.jpg|thumb|A plasma lamp]] [[File:Plasma lamp in conducting effect of hand.jpeg|thumb|Touching a plasma lamp changes the discharge patterns]] A '''plasma lamp''' is a type of [[gas discharge lamp]] that is filled with different [[Gas|gases]]. It uses [[dielectric barrier discharge]], which is also known as plasma discharge. [[Nikola Tesla]] invented it to study the properties of [[Plasma (physics)|plasma]], in 1892. He obtained a patent in 1894. Tesla called the lamp '''Inert Gas Discharge Tube'''. Plasma globe lamps were popular in the 1980s. [[Category:Physics]]