Photometry



Illuminance


E
lx
I
cd
α
rad
r
m

1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"


Photometry


variables:

E - illuminance
I - luminous intensity
α - angle between direction of light propagation and normal to surface
r - distance between light source and illuminated surface



Unicalc in Facebook
x

Message to designers



Your message has sent.
Thank you for helping!
Something is wrong?
User agreement admin@unicalc.net