标准光源
|
定义
|
A
|
Artificial illuminant such as a tungsten lamp at a color
temperature of 2880°K |
B
|
Noon sunlight at 4874° K
|
C
|
Average daylight (overcast sky) at 6774° K
|
D50
|
Typical bright daylight (overcast sky) at 5000° K
|
D55
|
Typical bright daylight (overcast sky) at 5500° K
|
D65
|
Typical bright daylight (overcast sky) at 6500° K
|
D75
|
Typical bright daylight (overcast sky) at 7500° K
|
F2
|
Cool white fluorescent lamp at 4200° K
|