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The luminous flux of the point light source and the illuminance depending on the distance

ÀÛ¼ºÀÚ Uploader : corona ÀÛ¼ºÀÏ Upload Date: 2019-02-16º¯°æÀÏ Update Date: 2019-02-26Á¶È¸¼ö View : 452

When the luminous flux of the point light source is F (lumen), the illuminance E (Lux) at a distance r (m) from the point light source can be obtained as follows.

E = F / A = F / (4¥ðr^2)

A: Area illuminated (m^2)


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E = F / (4*¥ð*r^2)
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