From Event: SPIE Optical Engineering + Applications, 2018
We have designed a SWIR(Short Wavelength Infrared) optical zoom system for surveillance. The focal length of the optical zoom system was 50mm to 500mm for a 640x512 pixel detector. The spot diameter of the optical system was about less than 30um concerning the pixel pitch of the SWIR detector. The MTF of the optical system was about 0.3 at the edge field of view. In field test we have proved to be able to get the image of a target in 1.5 times longer distance than visibility range by using our optical system with a SWIR detector at the focal length of 300mm.
Hyun Kyu Kim, Soo Min Park, Jung Hyun Kim, and Hyun Chul Choi, "Design of a SWIR optical zoom system for surveillance," Proc. SPIE 10747, Optical System Alignment, Tolerancing, and Verification XII, 107470J (Presented at SPIE Optical Engineering + Applications: August 20, 2018; Published: 19 September 2018); https://doi.org/10.1117/12.2327053.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the proceedings. They include the speaker's narration with video of the slides and animations. Most include full-text papers. Interactive, searchable transcripts and closed captioning are now available for most presentations.
Search our growing collection of more than 22,000 conference presentations, including many plenaries and keynotes.