中国物理B ›› 2019, Vol. 28 ›› Issue (8): 84201-084201.doi: 10.1088/1674-1056/28/8/084201

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Optical design of common-aperture multispectral and polarization optical imaging system with wide field of view

Xin Liu(刘鑫), Jun Chang(常军), Shuai Feng(冯帅), Yu Mu(穆郁), Xia Wang(王霞), Zhao-Peng Xu(徐兆鹏)   

  1. 1 School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China;
    2 Tianjin Jinhang Institute of Technical Physics, Tianjin 300192, China;
    3 China Centre for Resources Satellite Data and Application, Beijing 100191, China
  • 收稿日期:2019-02-21 修回日期:2019-05-03 出版日期:2019-08-05 发布日期:2019-08-05
  • 通讯作者: Jun Chang E-mail:optics_chang@126.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of china (Grant No. 61471039).

Optical design of common-aperture multispectral and polarization optical imaging system with wide field of view

Xin Liu(刘鑫)1, Jun Chang(常军)1, Shuai Feng(冯帅)1, Yu Mu(穆郁)1,2, Xia Wang(王霞)1, Zhao-Peng Xu(徐兆鹏)3   

  1. 1 School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China;
    2 Tianjin Jinhang Institute of Technical Physics, Tianjin 300192, China;
    3 China Centre for Resources Satellite Data and Application, Beijing 100191, China
  • Received:2019-02-21 Revised:2019-05-03 Online:2019-08-05 Published:2019-08-05
  • Contact: Jun Chang E-mail:optics_chang@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of china (Grant No. 61471039).

摘要: Multispectral and polarization cameras that can simultaneously acquire the spatial, spectral, and polarization characteristics of an object have considerable potential applications in target detection, biomedical imaging, and remote sensing. In this work, we develop a common-aperture optical system that can capture multispectral and polarization information. An off-axis three-mirror optical system is mounted on the front end of the proposed system and used as a common-aperture telescope in the visible light (400 nm-750 nm) and long-wave infrared (LWIR, 8 μm-12 μm) waveband. The system can maintain a wide field of view (4.5°) and it can demonstrate an enhanced identification ability. The off-axis three-mirror system gets rid of central obscuration while further yielding stable system resolution and energy. Light that has passed through the front-end common-aperture reflection system is divided into the visible light and LWIR waveband by a beamsplitter. The two wavebands then converge on two detectors through two groups of lenses. Our simulation results indicate that the proposed system can obtain clear images in each waveband to meet the diverse imaging requirements.

关键词: optical design, common-aperture, multispectral imaging, polarization imaging

Abstract: Multispectral and polarization cameras that can simultaneously acquire the spatial, spectral, and polarization characteristics of an object have considerable potential applications in target detection, biomedical imaging, and remote sensing. In this work, we develop a common-aperture optical system that can capture multispectral and polarization information. An off-axis three-mirror optical system is mounted on the front end of the proposed system and used as a common-aperture telescope in the visible light (400 nm-750 nm) and long-wave infrared (LWIR, 8 μm-12 μm) waveband. The system can maintain a wide field of view (4.5°) and it can demonstrate an enhanced identification ability. The off-axis three-mirror system gets rid of central obscuration while further yielding stable system resolution and energy. Light that has passed through the front-end common-aperture reflection system is divided into the visible light and LWIR waveband by a beamsplitter. The two wavebands then converge on two detectors through two groups of lenses. Our simulation results indicate that the proposed system can obtain clear images in each waveband to meet the diverse imaging requirements.

Key words: optical design, common-aperture, multispectral imaging, polarization imaging

中图分类号:  (Geometrical optics)

  • 42.15.-i
42.15.Dp (Wave fronts and ray tracing) 42.15.Fr (Aberrations) 42.79.-e (Optical elements, devices, and systems)