8 September 2004 Comparison of Topas cyclic olefin copolymers to BK7 glass in night vision goggle objectives
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Abstract
The objective of this study was to determine the suitability of Topas cyclic olefin copolymers (COC) as an optical plastic for use in military-grade night vision goggle (NVG) lens objectives. Test objective lenses that could include either a Topas COC window element or BK7 glass window element were manufactured. The test objectives were evaluated for low light resolution, MTF, off-axis veiling glare, and on-axis stray light. Additionally, the spectral transmittance of the individual windows elements was measured. This paper compares the evaluation results of test objectives containing Topas COC with test objectives containing BK7 glass.
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James S. Stevens, James S. Stevens, } "Comparison of Topas cyclic olefin copolymers to BK7 glass in night vision goggle objectives", Proc. SPIE 5442, Helmet- and Head-Mounted Displays IX: Technologies and Applications, (8 September 2004); doi: 10.1117/12.541358; https://doi.org/10.1117/12.541358
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