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Article Abstract
This paper is about the design and fabrication of infrared lenses, which are the core components of thermal imaging cameras to be mounted on vehicles. To produce an athermalized optical system, chalcogenide glass (AsSe) with a lower thermo-optic coefficient () than germanium was adopted as a lens material, and each lens was designed so that defocus occurs in opposite directions depending on temperature. The designed lens was fabricated using a compression molding method, and the molded lenses showed less than 1.5 μm of form error (PV) using a mold iteration process. Through evaluations of MTF and thermal images obtained from the lens module, it was judged that this optical design process is obtainable.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12388790 | PMC |
| http://dx.doi.org/10.3390/mi16080901 | DOI Listing |
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