punctual source

punctual source

irradiance on a surface

direct illumination lambertian source at infinity punctual sourcemiscellaneous direct illumination vs illumination through an optical system – source at infinitysource and screen conjugated by an optical system lambertian source at infinity - aperture defined with aperture diameter lambertian source at infinity - aperture defined with F number small lambertian source at finite distance - slightly opened optical systemsource in the front focal plane of an optical system punctual source with given intensity punctual source with given optical power small source with given radiance

.../ irradiance on a surface / direct illumination / punctual source

INPUT	VALUE	UNIT	VARIABLE	MIN	MAX	STEPS
Ir
dS
d
i

OUTPUT	VALUE	UNIT
Pr	to be calculated
Er	to be calculated