[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~ p
)yP_P  
}q.D)'g_  
P3&s<mh  
#5@(^N5p`  
1+;bd'Ie  
dZ`Y>wH_  

What solid angle does that angular pixel represent? Te+(7 Z  
gZ,h95
'  
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. } {1IB  
How is Radiant Intensity Defined /4an@5.\C  
,_e[P  
X,k^p[Rcu  
红色标出的那句是什么意思？ ]/=RABi  
> <YU'>%  
v76Gwu$d  

_re# b?