Thermal pickup does not update surface curvature and element thickness variations with temperature for some reason. Sharing a snippet of the difficulty:
What are some possible explanations?
Best answer by MichaelH
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Userlevel 6
+2
Have you increased the number of decimal points (Setup > Project Preferences > Editors > Decimals)? Sometimes the TCE of the material is small so you can’t see the change with the default of 3 decimals. Also, what’s your material? If you’re using a glass, the TCE in the Material Catalog should be greater than 0 and if you're using a MIRROR, then the TCE in the LDE should be greater than 0. Finally, to properly calculate the spacings/ring contact, OpticStudio also needs to calculate the change in clear semi-diameter (SDIA), so you should also include this operand. It's recommended to use the Make Thermal tool (in the MCE toolbar) to properly populate the MCE with the correct operands.
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