Paper 12575-31
Multi-functional optical design for IRST system using high-definition detector
On demand | Presented live 25 April 2023
Abstract
This paper introduces a mid-wavelength infrared (MWIR) lens design which has both function of high-speed scanning and optical zooming for Infrared Search and Track (IRST) System. For scanning function, a reflecting mirror is integrated within the optical system to stabilize the light-of-sight of the optical axis in integration time. This scanning mirror is placed in front of an imager group which focus the light onto the image surface. To perform the optical zooming function, an afocal telescope is place conjugated with the scanning mirror so that the optical lens design can change the focal length without affecting the scanning function. The field of view in scanning mode is 19.0° x 23.6° for a single frame while in optical zooming mode, the field of view can be change to 5.9° x 4.8° at minimum which makes the optical zoom power of 4X. All optical configurations of the system are designed to work with a F/#2 SXGA (1280 x 1024) cooled detector having a pixel pitch of 15μm.
Presenter
Viettel High-Tech Industrial Corp. (Vietnam)
Mr. Dat Nguyen-Van is currently working as an optical engineer at Viettel High Technologies Industry Coporation. He has years experience in lenses design and calibration, mostly in infrared thermal camera and laser optics.