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Beam Spread

Definition: With regard to outdoor light, the angle between the two directions in a plane in which the intensity is equal to a stated percentage of the maximum beam intensity. The percentage is typically 10% for floodlights and 50% for roadway luminaries.

Related Links

What is beam spread?
Pocket Guide: Beam Spread – Flip The Switch
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Light Bulb Beam Spread Chart – Calculate the beam spread of light
Floodlighting Design Guide | Lithonia Lighting

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    >

    Wavelength, Nearfield, Beam Spread Calculations

    View More
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    Plotting Beam Spread at 20%

    View More
  • <
    >

    Half Angle Beam Spread

    View More
  • <
    >

    Ch02B Beam Spreading

    View More
  • <
    >

    BulbAmerica.com Explains the Differences Between Beam Spreads and Beam Angles

    View More
  • <
    >

    Investigation 3 Beam Spreading and Solar angle ww

    View More
  • <
    >

    Wavelength%2C Nearfield%2C Beam Spread Calculations

    View More
  • <
    >

    Diffraction 7 - Beam Spread

    View More
  • <
    >

    Plotting Beam Spread at 20%.mpg

    View More
  • <
    >

    Angle Beam: Ultrasonic Testing Level 1 Angle Beam Testing

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  • <
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    Ocean Physics 15 - Beam Spreading

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