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methods for determination of illumination in public places

methods for determination of illumination in public places

  • 2020-07-15
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methods for determination of illumination in public places

(Summary description)

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  • 2020-07-15
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Scope: This standard provides for the determination of illumination in public places by the illuminometer method. This standard is applicable to the determination of artificial illumination and day-night illumination in public places, as well as the determination of screen brightness and luminous flux.
Principle: The illuminometer is made using the physical photoelectric phenomenon of the photosensitive semiconductor element. When external light is emitted to the selenium cell (optoelectronic element), the selenium cell converts the light energy into electrical energy and displays the illumination value of the light through the ammeter.

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