Advanced window coatings for drone and ground based applications

Terrance Finnell; Markus Fredell; Gregg Jarvis; Ian Barrett; Robert Sczupak; Scott Cohen; Thomas Rahmlow; Robert Mann; Robert Johnson

doi:10.1117/12.2519127

13 May 2019 Advanced window coatings for drone and ground based applications

Terrance Finnell, Markus Fredell, Gregg Jarvis, Ian Barrett, Robert Sczupak, Scott Cohen, Thomas Rahmlow, Robert Mann, Robert Johnson

Author Affiliations +

Proceedings Volume 10985, Window and Dome Technologies and Materials XVI; 109850C (2019) https://doi.org/10.1117/12.2519127
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Advanced window coatings being developed for drone applications need to be multi-functional. A typical window design includes a hydrophobic outer coating, a solar filter rejecting unwanted spectrum, an EMI layer and/or heater to prevent icing and anti-reflection films. Hydrophobic and hydrophilic thin film materials are available from various vendors. We present our experience in using these materials and their comparative performance with respect to film adhesion and durability. The window can be a common aperture for several different sensors. Adding an EMI shield using a transmitting conducting oxide (TCO) is challenged when visible and NIR transmission is needed. The trade-off between required conductivity and NIR transmission is presented.

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Citation Download Citation

Terrance Finnell, Markus Fredell, Gregg Jarvis, Ian Barrett, Robert Sczupak, Scott Cohen, Thomas Rahmlow, Robert Mann, and Robert Johnson "Advanced window coatings for drone and ground based applications", Proc. SPIE 10985, Window and Dome Technologies and Materials XVI, 109850C (13 May 2019); https://doi.org/10.1117/12.2519127

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