[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~ 0sF|Y%N  
zbvV:9N  
C879eeJ  
-<(RYMk*)  
?5j~"  
:_o^oi7G  

What solid angle does that angular pixel represent? z:u)@>6D1  
YoWXHg!U  
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. 1Afy$It/{  
How is Radiant Intensity Defined ^@Z8_PZo  
PM'2zP[*W  
p+y"r4  
红色标出的那句是什么意思？ aP B4!3W  

#er% q:  
'"'RC O  
%OP|%^2