However, these first bulbs were quite dangerous, as they became extremely hot and had a high chance of exploding. Therefore advances over the next few decades led to a patent by General Electric, which used lead, instead of chlorine, to prevent the tungsten reaction.
It was a huge success, with large numbers of these new lead-tungsten lights being sold across the nation. Throughout the next half of the 20 th century, advances in the shape, design, and chemical components of the halogen-tungsten lamps continued to be made. Today, compact fluorescent light bulbs, due to their bright light and environmentally friendly nature, are gaining traction over the old style halogen-tungsten lamps.
The remaining energy is lost as heat. However these inefficient light bulbs are still widely used today due to many advantages such as:. Unfortunately for the incandescent bulb, legislation in many countries, including the US, has mandated phasing it out for more energy-efficient options such as compact fluorescent lamps and LED lamps.
There has been much resistance, however, to these policies owing to the low cost of incandescent bulbs, the instant availability of light and concerns of mercury contamination with CFLs. Here at Bulbs. The many benefits of LED technology are summed up in this video. Skip to content. Account Sign In. Instant Rebates are available to businesses Click to find out about your location. Team member Elmer Fridrich had started at GE in as a machinist working the night-shift.
Assigned to assist Marvin Pipkin in making equipment to produce new "Q-Coat" later called "Soft White" bulbs, Fridrich's inventive talent was recognized and he was transferred to research. In Fridrich read an article in a scientific journal that discussed chemical purification techniques for tungsten. The method involved the use of halogens, and Fridrich began asking questions.
His colleagues were correct, halogens had been tried without much success. Waring's "Novak" light-bulb of used bromine. Fridrich reasoned, however, that in a narrow tube, with the filament near the bulb wall, a halogen cycle would work. He put his still-agile mind to work solving halogen lamps' problems. In order to create safe bulbs without the thick protective glass of currently available bulbs, he split the tiny units that produce illumination.
A few other engineering tweaks to how the filaments work in their quartz packages made the lamps more efficient and lighter, and cut the cost of making them. She and Fridrich's consultant, Dennis Dannemiller, are working to find ways to turn her father's work into a business. Mark Shepard, GE's product manager for halogens at Nela Park, specifically referred to Fridrich -- as others there did -- as "the father of halogen lighting.
He acknowledged that his technology staff is reviewing patents and technical papers. Fridrich said he just hopes his issued patents and others pending could help assure the income stream he never realized from his development of the halogen lamp five decades ago.
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Fact-forward news for readers like you who want to know more. Subscribe today. By Roger Mezger. Elmer Fridrich, 88, stands in one of several of his basement workrooms chock-full of tools, big and small, and fittings, connectors and components he can use in his constant tinkering.
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