[讨论]位置空间光照度与角度空间光照度 [复制链接]

请问各位同行，位置空间光照度与角度空间光照度是怎样的关系？它们之间的数学转换公式是什么？下面是一个方形通光管出来的光照度~ Z>(r9R3{  
(|0.m8D~D  
YGq=8p7.R  
b!'l\~`{i  
99l>CYXd  
7Sg
weZ}"  

What solid angle does that angular pixel represent? x^A7'ad0  
sX+`wc  
To answer that question we project out from the local axis of the detector to construct a sphere some long distance away from the detector, centered on the detector. We then (conceptually) fire rays from this point at x, y angles of (5, 40), (5, 41), (6, 41), and (6, 40). Now we know that patch of area, we can compute the solid angle subtended by that angular pixel. `/#f?Hk=  
How is Radiant Intensity Defined AY#wVy  
9<yAQ?7L  
=96
G8hlT  
红色标出的那句是什么意思？ taweGc%~  
HF"Eys  
EXuLSzQwv  
otO j^xU