Hello everyone, I want to model a system that has three assemblies at different temperatures and pressures. Additionally, each group can vary in temperature inside a specified range. Can this be modelled in Zemax and how?
The way I tried it turned out to be incorrect. I focused each assembly separately under its nominal condition, joined them in one file, and created 3 configuration thermal analysis. Then in MC editor, added temperature and pressure in front of first surface of a given group, expecting to get a nominal configuration to be focused, but it was not.
Can someone help me telling me how this can be modelled please?
Thank you very much, kind regards
Biljana
Best answer by Berta.Bernad
Hi Biljana,
You can assign their own temperature and pressure to a group of surfaces using the TEMP and PRES multi-configuration operands, even if you only have one configuration defined. The key is that each TEMP and PRES defines the environment for all operands that follow in the multi-configuration editor. The last TEMP and PRES operands listed in the editor define the "global" environment, which will apply to all data not listed in the multi-configuration editor. The TEMP and PRES operands will apply the environment to all operands below it until it sees another TEMP or PRES operand. Essentially, you want to define the temperate for certain thicknesses, radii, etc. with a TEMP operand and place the consequent parameter controls under that operand.
There is a nice discussion about this process in the help files:
You can assign their own temperature and pressure to a group of surfaces using the TEMP and PRES multi-configuration operands, even if you only have one configuration defined. The key is that each TEMP and PRES defines the environment for all operands that follow in the multi-configuration editor. The last TEMP and PRES operands listed in the editor define the "global" environment, which will apply to all data not listed in the multi-configuration editor. The TEMP and PRES operands will apply the environment to all operands below it until it sees another TEMP or PRES operand. Essentially, you want to define the temperate for certain thicknesses, radii, etc. with a TEMP operand and place the consequent parameter controls under that operand.
There is a nice discussion about this process in the help files:
I edited the sample file ...\Documents\Zemax\Samples\Sequential\Objectives\Cooke 40 degree field.zmx
Let’s change the system so that surface 2 through 5 is in a cooler environment (i,e 10 degrees). To do it, insert an operand before surface 2 to change the temperature:
and then after surface 5 to return the system to 20 degrees:
You can check the results with the Prescription Data (Analyse> Reports> Prescription Data)
Thank you for your replay. I have everything working correctly, although it is unfortunate that in Defining Multiple Environments within a Single Configuration it was not described how to form 1 configuration with many operands in a MCE. I see that you have it in this Cooke 40 deg example, but I still cannot see how you created it.
If I have more configurations with multiple environment subassemblies, the moment I reduce it to a single configuration, everything dissapears from MCE, so I know that it is not the way to create MCE with one configuration as you have it.
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