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| THERMAL ANALYSIS |
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| Optical systems which are used over a wide temperature range or in environment different from the standard temperature and pressure require consideration of thermal effects on the index of refraction and material expansion. ZEMAX uses an accurate nonlinear thermal model, not a simple dn/dt approximation. |
ZEMAX supports specification (and optimization) of the thermal coefficient of expansion (TCE) for spacers between lens elements or groups. The TCE data is used to create multiple configurations which reflect performance at various user defined temperatures. |
The glass catalogs supported by ZEMAX contain thermal expansion and index variation with temperature and pressure data which are used to compute the effects on individual elements and the optical system as a whole. Since ZEMAX can optimize across multiple configurations simultaneously, this feature can be used to design athermalized lenses, as well as estimate performance changes with temperature. |
Thermal expansion properties of all ZEMAX surfaces, including aspheric surfaces, are accurately modeled. |
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Click Here To Download ZEMAX brochure in PDF format. |
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