the electric arc

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  • the first electric light

    the first electric light
    Humphry Davy, an English chemist, invented the first electric light. Davy connected two wires to a battery and attached a charcoal strip betwween the other ends of the wires. The charged carbon glowed making the first arc lamp.

  • platinum coil

    platinum coil
    Warren De la Rue enclosed a platinum coil in an evacuated tube and passed an electric current through it.

  • prototype bulb

    prototype bulb
    James Bowman Lindsay demonstrated constant electric lighting system using a prototype lightbulb.

  • incandescent arc lamp

    Edward Shepard invented an electrical incandescent arc lamp using a charcoal filament. Joseph Wilson Swan started working with carbonized paper filaments the same year.

  • the first true lightbulb

    Henricg Globel, a German watchmaker, invented the first true lightbulb. He used a carbonized bamboo filament placed inside a glass bulb

  • pratical lightbulb

    pratical lightbulb
    Sir Joseph Wilson Swan , an English physicist, was the first person to invent a practical and longer-lasting electic lightbulb (13.5 hours). Swan used a carbon fiber filament derived from cotton.

  • carbon filament

    carbon filament
    Thomas Alva Edison invented a carbon filament that burned for forty hours. Edison placed his filament in an oxygenless bulb. (Edison evolved his designs for the lightbulb based on the 1875 patent he purchased from inventors, Henry Woodward and Matthew Evans.)

  • 1200 hour lassting bulb

    Edison continued to improved his lightbulb until it could last for over 1200 hours using a bamboo-derived filament.

  • Gas Discharge or Vapor Lamps

    American, Peter Cooper Hewitt patented the mercury vapor lamp in . This was an arc lamp that used mercury vapor enclosed in glass bulb. the lamps had carbon filaments which were both inefficient and fragile.

  • neon signs

    neon signs
    Georges Claude of France invented the neon lamp

  • Tungsten Filaments Replace Carbon Filaments

    a American, Irving Langmuir invented an electric gas-filled tungsten lamp. This was a incandescent lamp that used tungsten rather than carbon as its filament.

  • frosted bulbs

    frosted bulbs
    The first frosted lightbulbs were produced

  • fluorescent lamp

    fluorescent lamp
    Friedrich Meyer, Hans Spanner, and Edmund Germer patented a fluorescent lamp.

  • Halogen Lights

    Halogen Lights

  • 60000 hour lasting bulb

    Philips invented a lightbulb that lasts 60,000 hours.