OpTaliX-LT 8.39 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus.
OpTaliX-LT lies within Education Tools, more precisely Science Tools. This PC software works fine with 32-bit and 64-bit versions of Windows XP/7/10/8/11. Optalix_lt.exe is the common file name to indicate the OpTaliX-LT installer. This software is a product of Optenso. The most popular versions among the software users are 8.3 and 7.0.
From the developer:
OpTaliX is a powerful and comprehensive program for computer aided design of optical systems, thin film multilayer coatings and illumination systems. OpTaliX provides powerful features to conceptualize, design, optimize, analyze, tolerance and document virtually any optical system.
You may want to check out more software, such as Trachtenberg Speed Math, MathMatic or MemBrain, which might be related to OpTaliX-LT.