Tip #3: Calculating Lumens in a Far-Field Intensity Distribution

asdoptics · 发表于 2013-6-17 16:42:31

Often, an illumination system is required to meet a specific far-field intensity distribution. The engineer needs to know how many lumens are required to produce this pattern in order to determine if the proposed design approach is feasible. You can use ASAP® to determine the lumens using the following method:

Create a text file that defines the intensity distribution for use with the USERAPOD ANGLES command. In ASAP, create a point source that is apodized by the file created. Multiply the lumens by 4*PI.

A STATS command will then give the total lumens in the pattern. You can also generate an Iso-Candela plot to verify that the far-field distribution is correct.

The files listed below under "Related Files" demonstrate this example.

Note: If you make changes to the text file used for apodization, ASAP cannot pick up the change since the apodization data is stored in memory. By creating a copy of the text file and loading this dummy file first, it forces ASAP to read from the file.

该贴已经同步到 asdoptics的微博

[其它] Tip #3: Calculating Lumens in a Far-Field Intensity Distribution

发表回复

浏览过的版块


热搜: 防雾膜棒料红外反射膜光电二极管镀膜机反射膜光谱仪光电探头真空镀银滤光片光器件应用光学 zemax激光远心镜头 sio2 增透膜离子源栅网 zemax 论文高反膜半反半透膜