Mathematical model of sub-aperture field imaging system

Pei-yue Xie; Wei Yang; Xin Liu; Liang Han

doi:10.1117/12.2580707

5 November 2020 Mathematical model of sub-aperture field imaging system

Pei-yue Xie, Wei Yang, Xin Liu, Liang Han

Proceedings Volume 11567, AOPC 2020: Optical Sensing and Imaging Technology; 115674J (2020) https://doi.org/10.1117/12.2580707
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

Based on the sub-aperture field imaging system which microlens array located at the front of the primary focal plane and the back of the main lens, firstly, the schematic diagram of each microlens re-focus imaging with different aperture information were given in two structures. Then, the coordinate system of the related planes was defined to study the optical field transformation mode among the target point in the scene plane, the microlens array plane, the primary image plane and the detector plane. In addition, the discrete sampling mode of the detector and the schematic diagram of the radiation transmission path were established. Moreover, the determinants of its position and direction resolution were studied. Finally, three same size scene targets were generated by computer simulation, when the microlens array was located in different positions of the optical system, different cases of obtaining images on the detector were obtained. The results show that the position of the microlens array would lead to the change of magnification of the primary image surface and the detector image surface, meanwhile it would lead to the difference overlapping area of the image. At the same time, the number of apertures could be distinguished, but the images could be basically consistent by rearrangement.

Citation Download Citation

Pei-yue Xie, Wei Yang, Xin Liu, and Liang Han "Mathematical model of sub-aperture field imaging system", Proc. SPIE 11567, AOPC 2020: Optical Sensing and Imaging Technology, 115674J (5 November 2020); https://doi.org/10.1117/12.2580707

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KEYWORDS

Microlens

Imaging systems

Sensors

Microlens array

Cameras

Mathematical modeling

Mirrors

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