In 1879, Thomas Edison filed for a patent for the first commercially successful incandescent light bulb. This was not, as many believe, the first time someone had created artificial light.
But within the lifetimes of many of us, it was not always so. Our acquaintance with fluorescence was then limited to high-school science classes. There, our teacher would draw the shades to darken the room, turn on an incandescent or small mercury-vapor lamp with a purple glass filter, and shine it on selected mineral specimens. Then, to our dark-adapted eyes, we would see them glow in a variety of colors. It didn't seem possible that this darkroom phenomenon could ever be the basis for a practical light source.
Since that time, great improvements and scientific breakthroughs have continued to shape the way we illuminate our world. The next big leap in the evolution of lighting was the introduction of the fluorescent light bulb. Riding in on the coattails of the mercury vacuum pump invented by a German glassblower named Heinrich Geissler. Mr. Geissler's pump allowed him to evacuate the air from a glass tube which created a greater vacuum than had been previously possible. When electricity was run through the "Geissler tube" it began to emit a strong, green, fluorescent, glow.
Rocks and other types of mineral material had been observed to "fluoresce" for hundreds of years, but it was now possible to capture and control that energy. Primarily viewed as a source of amusement Geissler's discoveries helped to pave the way for future developments of the fluorescent light bulb.
Folks then figured that if they coated the inside of the light bulb with a fluorescent chemical (one that absorbed UV light and re-radiated that energy as visible light) they could make an efficient light source." Friedrich Meyer, Hans Spanner, Edmund Germer invented a high-pressure vapor lamp, his development of the improved fluorescent lamp and the high-pressure mercury-vapor lamp allowed for more economical lighting with less heat.
However, there is a barrage of cheap fluorescent lightings being imported and sold, that do not comply with the flag statute. This is bad for a number of reasons. Imported stuff is cheaply made and more importantly, the designs, materials, colors, and methods do not compare well with the better quality, longer-lasting, and correctly designed lightings made by American manufacturers. The Flag Company Inc specialized in flags and lightings offered a special edition of fluorescent lightings to provide innovative solutions for individual projects.
But within the lifetimes of many of us, it was not always so. Our acquaintance with fluorescence was then limited to high-school science classes. There, our teacher would draw the shades to darken the room, turn on an incandescent or small mercury-vapor lamp with a purple glass filter, and shine it on selected mineral specimens. Then, to our dark-adapted eyes, we would see them glow in a variety of colors. It didn't seem possible that this darkroom phenomenon could ever be the basis for a practical light source.
Since that time, great improvements and scientific breakthroughs have continued to shape the way we illuminate our world. The next big leap in the evolution of lighting was the introduction of the fluorescent light bulb. Riding in on the coattails of the mercury vacuum pump invented by a German glassblower named Heinrich Geissler. Mr. Geissler's pump allowed him to evacuate the air from a glass tube which created a greater vacuum than had been previously possible. When electricity was run through the "Geissler tube" it began to emit a strong, green, fluorescent, glow.
Rocks and other types of mineral material had been observed to "fluoresce" for hundreds of years, but it was now possible to capture and control that energy. Primarily viewed as a source of amusement Geissler's discoveries helped to pave the way for future developments of the fluorescent light bulb.
Folks then figured that if they coated the inside of the light bulb with a fluorescent chemical (one that absorbed UV light and re-radiated that energy as visible light) they could make an efficient light source." Friedrich Meyer, Hans Spanner, Edmund Germer invented a high-pressure vapor lamp, his development of the improved fluorescent lamp and the high-pressure mercury-vapor lamp allowed for more economical lighting with less heat.
However, there is a barrage of cheap fluorescent lightings being imported and sold, that do not comply with the flag statute. This is bad for a number of reasons. Imported stuff is cheaply made and more importantly, the designs, materials, colors, and methods do not compare well with the better quality, longer-lasting, and correctly designed lightings made by American manufacturers. The Flag Company Inc specialized in flags and lightings offered a special edition of fluorescent lightings to provide innovative solutions for individual projects.
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