Mirror box with 1 candela of luminous intensity light source

[genekuli]

Yes. This will likely be wildly inaccurate for the situation described but it is definitive and provides "scientific formula" which seems to be sufficient to the OP. In fact the following does a lovely job on the integrating sphere:

https://www.labsphere.com/site/assets/files/2551/integrating_sphere_theory_apps_tech_guide.pdf

.

thank you, it is too advanced for me. but this is more accurately what I'm trying to ask

 

[genekuli]

i found the answer it is called an

"Integrating sphere"​

 

[berkeman]

i found the answer it is called an

"Integrating sphere"​

Great. Any further discussion can continue in your other thread basically on the same subject:

https://www.physicsforums.com/threa...nclosure-re-reflections.1002186/#post-6483342

This thread is locked.