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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Dynamically tunable hemispherical electronic eye camera system with adjustable zoom capability
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Dynamically tunable hemispherical electronic eye camera system with adjustable zoom capability

机译：具有可调变焦功能的动态可调半球电子眼摄像系统

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摘要

Imaging systems that exploit arrays of photodetectors in curvilinear layouts are attractive due to their ability to match the strongly nonplanar image surfaces (i.e., Petzval surfaces) that form with simple lenses, thereby creating new design options. Recent work has yielded significant progress in the realization of such "eyeball" cameras, including examples of fully functional silicon devices capable of collecting realistic images. Although these systems provide advantages compared to those with conventional, planar designs, their fixed detector curvature renders them incompatible with changes in the Petzval surface that accompany variable zoom achieved with simple lenses. This paper describes a class of digital imaging device that overcomes this limitation, through the use of photodetector arrays on thin elastomeric membranes, capable of reversible deformation into hemispherical shapes with radii of curvature that can be adjusted dynamically, via hydraulics. Combining this type of detector with a similarly tunable, fluidic plano-convex lens yields a hemispherical camera with variable zoom and excellent imaging characteristics. Systematic experimental and theoretical studies of the mechanics and optics reveal all underlying principles of operation. This type of technology could be useful for night-vision surveillance, endoscopic imaging, and other areas that require compact cameras with simple zoom optics and wide-angle fields of view.
机译：利用曲线布局的光电探测器阵列的成像系统具有吸引力，因为它们能够匹配用简单透镜形成的强烈非平面图像表面（即Petzval表面），从而创造了新的设计选择。最近的工作在实现这种“眼球”相机方面取得了重大进展，其中包括能够收集真实图像的全功能硅设备的示例。尽管与常规的平面设计相比，这些系统具有优势，但其固定的检测器曲率使其与Petzval表面的变化不兼容，而Petzval表面的变化伴随着简单镜头实现的可变变焦。本文介绍了一类数字成像设备，它通过在弹性体薄膜上使用光电探测器阵列克服了这一限制，能够将其可逆变形为半球形，其曲率半径可以通过液压进行动态调节。将这种类型的检测器与同样可调的流体平凸透镜结合使用，可以得到具有可变变焦和出色成像特性的半球形摄像机。对力学和光学的系统性实验和理论研究揭示了所有基本的操作原理。这种技术对于夜视监视，内窥镜成像以及其他需要具有简单变焦光学元件和广角视场的紧凑型摄像机的区域可能很有用。

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    Inhwa Jung; Jianliang Xiao; Viktor Malyarchuk; Chaofeng Lu; Ming Li; Zhuangjian Liu; Jongseung Yoon; Yonggang Huang; John A. Rogers;

  • 作者单位

    Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801;

    Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801;

    Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801;

    Department of Civil Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, China,Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208;

    Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208,State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;

    Institute of High Performance Computing, 1 Fusionopolis Way,#16-16 Connexis, Singapore 138632;

    Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801;

    Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208,Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208;

    Department of Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    biomimetic; electronic eyeball camera; flexible electronics; fluidic tunable lens; hydraulic actuation;

    机译：仿生;电子眼球摄像机;柔性电子;流体可调透镜;液压驱动;

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