Photometry Flashcards
1
Q
Luminous flux (F)
A
lumen
2
Q
Luminous intensity (I)
A
Flux/solid angle
Candela
3
Q
Illuminance (E)
A
Flux incident/Area
Lux
4
Q
Solid angle (w)
A
steradian
5
Q
Luminance (L)
A
Intensity/projected area
nit
6
Q
Luminous exitance (X)
A
Flux out/area
lux
7
Q
Reflectance or transmittance (p or t)
A
exitance/illuminance
no units
8
Q
Retinal illuminance (Et)
A
Lo*Aent
td