Acta Photonica Sinica, Volume. 43, Issue 7, 722003(2014)
Medium Infrared Optical System Optimized Design of AOTF Spectrum Camera for Target Tracking and Identifying
A medium infrared optical system was designed for acoustooptic tunable filter spectra camera to obtain the spatial information and spectral information.By introducing a hybrid refractive/diffractive lens,there are six lens in the fore zoom optical system to achieve 12× zoom ratio,which can identify the object 2 000 m far at long focal length.ZEMAX software was used to simulate the diffraction of the crystal,a wedge with 4° is needed to certify that the -1 order diffraction beams exit coaxially.Results show that the maximum modulation transfer function at spatial frequency14 lp/mm of the whole system is 0.7,the diffraction encircled energy was greater than 90%,which satisfy the image quality of the spectrum camera for target identifying and tracking.
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ZHAO Zhao, AN Zhiyong, WANG Jinsong, GAO Duorui, ZHONG Liujun. Medium Infrared Optical System Optimized Design of AOTF Spectrum Camera for Target Tracking and Identifying[J]. Acta Photonica Sinica, 2014, 43(7): 722003
Received: Mar. 7, 2014
Accepted: --
Published Online: Aug. 18, 2014
The Author Email: Zhao ZHAO (zhaozhao_cust@163.com)
CSTR:32186.14.