microsoft
Uniform emitter called "Lambertian"
Wikipedia definition of Lambertian Reflector Lambertian reflectance is the property that defines an ideal "matte" or diffusely reflecting surface. The apparent brightness of a Lambertian surface to an observer is the same regardless of the observer's angle of view. More technically, the surface's luminance is isotropic, and the luminous intensity obeys Lambert's cosine law.
OpticSim definition of Lambertian Emitter Ray power is unaffected by angle.
Is this a mistake and what's called "Cosine" in OpticSim should actually be "Lambertian"? And "Lambertian" in OpticSim should be "Uniform" or so? Or could anybody explain this to me?
Minor Question in lack of a forum I'm trying to simulate the irradiance homogeneity of a plane that is illuminated by an LED array. Given that there are only limited choices of emitters, I wonder if anyone has ever done something similar and if OpticSim is actually the right tool. It seems that OpticSim is very focused on Lens Design. Are there any other limitations (except for the emitter choice) that should keep me from doing that simulation with OpticSim? E.g is the detector result acutally a physically correct representation for the incidence power?
