The calculator below 👇can help you REALLY ROUGHLY estimate:

   a.) how changes in distance will change lux values (for example, if a vendor tells you the lux at 100mm, but you need to know it at 50mm or 150mm)

         -or-

    b.) how reported candela from a source will translate to lux at different distances.

IMPORTANT NOTE:

these approximations are based on inverse square law where the light from the source has super-wide, spready-outty beam angle. The narrower the beam of your illumination or the more collimated or laser-like it is, the less this approximation holds up.

If you need 1:1 guidance, please schedule a consultation to see how we specifically address your needs with less guesstimating in an optical engineering contract!
Book your appointment here.