mercury vapor lamp
71Germicidal lamp — A germicidal lamp is a special type of lamp which produces ultraviolet light (UVC). This short wave ultraviolet light ionizes oxygen to produce ozone and can kill many surface pathogens.There are two common types available:* Low pressure lamps *… …
72Light fixture — This article is about architectural light fixtures. For stage lighting, see Stage lighting instrument. Many various light fixtures A light fixture, light fitting, or luminaire is an electrical device used to create artificial light and/or… …
73Fluorescence microscope — An upright fluorescence microscope (Olympus BX61) with the fluorescent filter cube turret above the objective lenses, coupled with a digital camera. A fluorescence microscope is an optical microscope used to study properties of organic or… …
74Electrical ballast — Choke ballast (inductor) used in older lighting. This example is from a tanning bed. Requires a lamp starter (below) and capacitor …
75Peter Cooper Hewitt — Infobox Scientist name = Peter Cooper Hewitt box width = image width =150px caption = Peter Cooper Hewitt birth date = May 5, 1861 birth place = New York City death date = August 25, 1921 death place = residence = citizenship = nationality =… …
76Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …
77sunlamp — noun a mercury vapor lamp used in medical or cosmetic treatments • Syn: ↑sun lamp, ↑sunray lamp, ↑sun ray lamp • Hypernyms: ↑mercury vapor lamp …
78List of light sources — This is a list of sources of light, including both natural and artificial sources, and both processes and devices .Natural [ Lightning can be a spectacular source of illumination.] *Astronomical objects **Sunlight (Solar radiation)… …
79Timeline of lighting technology — Timeline of lighting technology* Since the dawn of man, about 200,000 years ago, people use the sun as their main source of light. * 70,000 BCE A hollow rock or shell or other natural found objects was filled with moss or a similar material that… …
80Geissler tube — The Geissler tube is a glass tube for demonstrating the principles of electrical glow discharge. The tube was invented by the German physicist and glassblower Heinrich Geissler in 1857. The Geissler tube was an evacuated glass cylinder with an… …
