For experimental setup to calibrate spectral radiance by applying a diffuse plane, the measured spectral radiance can be obtained through integral of spectral radiation flux entering the spectrometer.
在利用漫反射板标定光谱辐亮度的实验装置中，标准灯完全可以近似为点光源。
2
The above definition of diffuse density implies that the input light is collimated and that all the output flux is collected.
上面定义的漫射密度意味著输入光先经过准直，然后收集所有的输出量。
3
With the help of solve-diffuse model, explain operating press how to change membrane flux and separating character.