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<p>For generating tunable magnifications, with zero-throw, we disclose several Gaussian designs that use either thin lenses, or a thick meniscus with flexible surfaces. We extend these results to mirrors with governable curvature radii. As the magnification changes, the proposed devices preserve either the inter-element separation, or their thickness. We illustrate our results by designing a Barlow lens that preserves the location of its back focal plane, while tuning the angular magnification.</p>

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Zero-throw tunable magnifications: thin lenses, meniscus and flexible mirrors

  • 期刊论文

  • 发表日期：

    2025年2月8日

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  • Cristina M. Gómez-Sarabia,
  • Jorge Ojeda-Castañeda

摘要

For generating tunable magnifications, with zero-throw, we disclose several Gaussian designs that use either thin lenses, or a thick meniscus with flexible surfaces. We extend these results to mirrors with governable curvature radii. As the magnification changes, the proposed devices preserve either the inter-element separation, or their thickness. We illustrate our results by designing a Barlow lens that preserves the location of its back focal plane, while tuning the angular magnification.