Version 1
: Received: 7 March 2017 / Approved: 8 March 2017 / Online: 8 March 2017 (04:40:47 CET)
How to cite:
Feng, B.; Shi, Z.; Zhao, Y.; Liu, H.; Liu, L. A Wide-FoV Athermalized Infrared Imaging System with a Two-Piece Lens. Preprints2017, 2017030042. https://doi.org/10.20944/preprints201703.0042.v1
Feng, B.; Shi, Z.; Zhao, Y.; Liu, H.; Liu, L. A Wide-FoV Athermalized Infrared Imaging System with a Two-Piece Lens. Preprints 2017, 2017030042. https://doi.org/10.20944/preprints201703.0042.v1
Feng, B.; Shi, Z.; Zhao, Y.; Liu, H.; Liu, L. A Wide-FoV Athermalized Infrared Imaging System with a Two-Piece Lens. Preprints2017, 2017030042. https://doi.org/10.20944/preprints201703.0042.v1
APA Style
Feng, B., Shi, Z., Zhao, Y., Liu, H., & Liu, L. (2017). A Wide-FoV Athermalized Infrared Imaging System with a Two-Piece Lens. Preprints. https://doi.org/10.20944/preprints201703.0042.v1
Chicago/Turabian Style
Feng, B., Haizheng Liu and Li Liu. 2017 "A Wide-FoV Athermalized Infrared Imaging System with a Two-Piece Lens" Preprints. https://doi.org/10.20944/preprints201703.0042.v1
Abstract
For a wide field of view (FoV) wavefront coding athermalized infrared imaging system with a single decoding kernel, the off-axis aberration tends to cause artefacts. In order to correct off-axis aberration, many pieces of lenses will reduce the transmission efficiency and increase the weight and cost. To meet requirements for wide FoV, wide operating temperature and low weight of infrared imaging systems, this paper reports a wide-FoV wavefront coding athermalized infrared imaging system with a two-piece lens. Its principle, design, manufacture, measurement and performance validation are successively discussed. This paper constructs an optimization problem which maximizes the weighted mean of PSF consistency for both the FoV and operating temperature range. The two-piece lens contains four surfaces, where three aspheric surfaces are introduced to reduce optical off-axis aberrations and a cubic surface is introduced to achieve athermalization. The optical phase mask containing an aspheric surface and a cubic surface is manufactured by nano-metric machining of ion implanted material(NiIM). Experimental results validate that our wide-FoV wavefront coding athermalized infrared imaging system has a full FoV of 26.10° and an operating temperature over -20°C to +70°C.
Keywords
infrared imaging; wide field of view; athermalization; two-piece lens
Subject
Physical Sciences, Optics and Photonics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
