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7 June 2017 Expanded IR glass map with new NRL glasses for multispectral optics designs (Conference Presentation)
Shyam S. Bayya, Daniel Gibson, Vinh Nguyen, Jasbinder Sanghera, Mikhail Kotov, Collin McClain, Jay Vizgaitis
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Proceedings Volume 10181, Advanced Optics for Defense Applications: UV through LWIR II; 1018102 (2017) https://doi.org/10.1117/12.2262889
Event: SPIE Defense + Security, 2017, Anaheim, CA, United States
Abstract
There is a strong desire to reduce size and weight of single and multiband IR imaging systems in ISR operations on hand-held, helmet mounted or airborne platforms. NRL is working on developing new IR glasses that transmit from 0.9 to > 12 µm in wavelength, with refractive index ranging from 2.38 to 3.17, to expand the glass map and provide compact solutions to multispectral imaging systems. These glasses were specifically designed to have comparable glass molding temperatures and thermal properties so that they can be laminated and co-molded into optics with reduced number of air-glass interfaces (lower Fresnel reflection losses). These new NRL glasses also have negative or very low dn/dT, making it easier to athermalize the optical system. Our multispectral optics designs using these new materials demonstrate reduced size, complexity and improved performance. This presentation will cover discussions on the new optical materials, multispectral designs, as well fabrication and characterization of new optics.
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Shyam S. Bayya, Daniel Gibson, Vinh Nguyen, Jasbinder Sanghera, Mikhail Kotov, Collin McClain, and Jay Vizgaitis "Expanded IR glass map with new NRL glasses for multispectral optics designs (Conference Presentation)", Proc. SPIE 10181, Advanced Optics for Defense Applications: UV through LWIR II, 1018102 (7 June 2017); https://doi.org/10.1117/12.2262889
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KEYWORDS
Glasses
Optical design
Imaging systems
Infrared imaging
Thermography
Defense and security
Glass molding
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