Multiband optics for imaging systems (Conference Presentation)

Jasbinder S. Sanghera; Daniel J. Gibson; Shyam S. Bayya; Vinh Q. Nguyen; Mikhail Kotov; Collin McClain

doi:10.1117/12.2240857

8 December 2016 Multiband optics for imaging systems (Conference Presentation)

Jasbinder S. Sanghera, Daniel J. Gibson, Shyam S. Bayya, Vinh Q. Nguyen, Mikhail Kotov, Collin McClain

Proceedings Volume 9988, Electro-Optical Remote Sensing X; 99880G (2016) https://doi.org/10.1117/12.2240857
Event: SPIE Security + Defence, 2016, Edinburgh, United Kingdom

Abstract

There is a strong desire to reduce size and weight of single and multiband IR imaging systems in Intelligence, Surveillance and Reconnaissance (ISR) operations on hand-held, helmet mounted or airborne platforms. NRL is developing new IR glasses that 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 to enable lamination and co-molding of the optics which leads to a reduction in the number of air-glass interfaces (lower Fresnel reflection losses). 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. Additionally, graded index (GRIN) optics offer further potential for both weight savings and increased performance but have so far been limited to visible and NIR bands (wavelengths shorter than about 0.9 µm). NRL is developing a capability to extend GRIN optics to longer wavelengths in the infrared by exploiting diffused IR transmitting chalcogenide glasses. These IR-GRIN lenses are compatible with all IR wavebands (SWIR, MWIR and LWIR) and can be used alongside conventional materials. The IR-GRIN lens technology, design space and anti-reflection considerations will be presented in this talk.

Conference Presentation

Citation Download Citation

Jasbinder S. Sanghera, Daniel J. Gibson, Shyam S. Bayya, Vinh Q. Nguyen, Mikhail Kotov, and Collin McClain "Multiband optics for imaging systems (Conference Presentation)", Proc. SPIE 9988, Electro-Optical Remote Sensing X, 99880G (8 December 2016); https://doi.org/10.1117/12.2240857

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KEYWORDS

Imaging systems

Infrared imaging

Glasses

Intelligence systems

Aerospace engineering

Lens design

Optical design

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