集成弯曲像面的大视场超紧凑型镜头设计

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关键词：光学设计;紧凑型镜头；曲面CMOS;大视场;主光线入射角中图分类号：TN202 文献标志码：A doi：10.37188/CO.2025-0076 CSTR：32171.14.CO.2025-0076

Abstract： To address the demand for large field-of-view and high compactness in lightweight AR glasses equipped with cameras， this study proposes an optical design method incorporating a curved image plane. First，the curved image plane imaging system is theoretically analyzed according to Gaussian optics theory. The Petzval surface curvature characteristics of various optical configurations are derived，and the performance advantages of the curved image plane are highlighted through comparative simulations of dual systems. Then， a wide-field and compact optical system is designed using a segmented multi-objective optimization strategy. Finally，image quality evaluation and tolerance analysis are performed on the designed system. The compact optical system comprises five aspheric plastic lenses and a rear-mounted filter. It features a focal length of 3.1mm ， a field of view （FOV） up to 80∘ ， and a total system length of only 4.07mm .The design results show that the modulation transfer function （MTF） exceeds 0.32 acrossallfields.The maximum RMS spot radius is 2.41μm ，witha distortion ofonly 2.5% ，and the relative illumination remains above 45% （20 across the entire field at 223lp/mm . This work lays a foundation for the application of curved sensors and offers a technical reference for the design of wide-field compact lenses.

Key words： optical design; compact lens; curved CMOS; wide field-of-view; chief ray angle

1引言

随着消费级AR、移动设备、汽车自动驾驶以及无人机等领域的快速发展，对大视场紧凑型光学镜头的需求日益增长。（剩余14645字）