In this article I will chart the progress of the light bulb, starting with the earliest experiments with platinum filaments to todays most advanced LED bulbs. This was a significant advancement; however the use of platinum made the design unfeasible for commercial use. When discussing the incandescent lamp one name features more prolifically than any other, Thomas Edison. From its early conception at the turn of the 19th century to the present day where the image of the light bulb is still used to represent the notion of a good idea, the design of the light bulb has changed relatively little.The electric light bulb is one the most abiding symbols of technical advancement.
In 1858 Joseph Wilson Swan began working with carbonised paper filaments but was hindered by the lack of a good vacuum until he teamed up with Charles Stearn, an expert on vacuum pumps. James Lindley took up the baton in China grow tent for sale 1835 demonstrating his electric light at a public meeting; however he then turned his attention to other fields leaving the way clear for Walter De la Rue. Historians Robert Friedel and Paul Israel named over twenty inventors of the light bulb before Edison, however they concluded that Edisons design surpassed earlier attempts because of effective incandescent material, a higher vacuum and higher resistance making the bulb easy to power and therefore economically viable.The first incandescent light was created by Humphry Davy in 1802, 45 years before Edison was born, by passing an electric current through a thin strip of platinum, chosen for its high melting point.
However, with efficiency requirements and customer tastes becoming more advanced lighting technology is once again changing rapidly. One of the most consistent and interesting themes in this subject area is the aversion to change that inventors and innovators contend with at each new technological advancement. The light produced was not bright enough nor did it last long enough to be practical.Thomas Hughes ascribed the success of Edisons design to the fact he had invented an entire lighting system, other inventors with generators and incandescent lamps, and comparable ingenuity and excellence, have long been forgotten because their creators did not preside over their introduction in a system of lighting (Hughes).
In 1840 De la Rue passed an electrical current through a coiled platinum filament- enclosed in a vacuum. The theory being that an evacuated bulb would contain fewer gas molecules to react with the platinum, thus prolonging its illumination time. This point can be illustrated with the candle light bulb; the bulb was designed to replicate the aesthetics of a candle in fittings such as chandeliers (the earliest chandeliers were purely functioning as a way of increasing the light output from candles). The candle shaped bulb is now one of the most popular CFL styles due to the potential cost savings from multiple bulb fittings
In 1858 Joseph Wilson Swan began working with carbonised paper filaments but was hindered by the lack of a good vacuum until he teamed up with Charles Stearn, an expert on vacuum pumps. James Lindley took up the baton in China grow tent for sale 1835 demonstrating his electric light at a public meeting; however he then turned his attention to other fields leaving the way clear for Walter De la Rue. Historians Robert Friedel and Paul Israel named over twenty inventors of the light bulb before Edison, however they concluded that Edisons design surpassed earlier attempts because of effective incandescent material, a higher vacuum and higher resistance making the bulb easy to power and therefore economically viable.The first incandescent light was created by Humphry Davy in 1802, 45 years before Edison was born, by passing an electric current through a thin strip of platinum, chosen for its high melting point.
However, with efficiency requirements and customer tastes becoming more advanced lighting technology is once again changing rapidly. One of the most consistent and interesting themes in this subject area is the aversion to change that inventors and innovators contend with at each new technological advancement. The light produced was not bright enough nor did it last long enough to be practical.Thomas Hughes ascribed the success of Edisons design to the fact he had invented an entire lighting system, other inventors with generators and incandescent lamps, and comparable ingenuity and excellence, have long been forgotten because their creators did not preside over their introduction in a system of lighting (Hughes).
In 1840 De la Rue passed an electrical current through a coiled platinum filament- enclosed in a vacuum. The theory being that an evacuated bulb would contain fewer gas molecules to react with the platinum, thus prolonging its illumination time. This point can be illustrated with the candle light bulb; the bulb was designed to replicate the aesthetics of a candle in fittings such as chandeliers (the earliest chandeliers were purely functioning as a way of increasing the light output from candles). The candle shaped bulb is now one of the most popular CFL styles due to the potential cost savings from multiple bulb fittings
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