Spherical aberration of planar square aperture microlens array

Xiaomei Chen; Fengjun Zhang; Zhifang Zhao; Jie Chen; Sumei Zhou; Xiaoping Jiang; Desen Liu

doi:10.1117/12.901031

8 September 2011 Spherical aberration of planar square aperture microlens array

Xiaomei Chen, Fengjun Zhang, Zhifang Zhao, Jie Chen, Sumei Zhou, Xiaoping Jiang, Desen Liu

Proceedings Volume 8191, International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies; 819124 (2011) https://doi.org/10.1117/12.901031
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

Abstract

Ion thermal diffusion theory was applied to analyze the influence on numerical aperture and focal length of planar square aperture microlens array (PMLA). Moreover, numerical aperture and focal length with different ion-exchanging time but the same size of mask aperture were measured experimentally. Then, we measured the longitudinal and transverse spherical aberration by the method of parallel light incidence and emergent light pupil and improved the aberration of square-aperture PMLA by annealing treatment. Experiment results show that the spherical aberration is decreased obviously after annealing process. Meanwhile, imaging resolution is also improved more greatly. PMLA optical system with continuously adjustable focal length was proposed, which was made up of two pieces of square aperture PMLA and an aspherical lens and focal length can be adjusted continuously just by precisely adjusting the distance between the two pieces of square aperture PMLA.

Citation Download Citation

Xiaomei Chen, Fengjun Zhang, Zhifang Zhao, Jie Chen, Sumei Zhou, Xiaoping Jiang, and Desen Liu "Spherical aberration of planar square aperture microlens array", Proc. SPIE 8191, International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, 819124 (8 September 2011); https://doi.org/10.1117/12.901031

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