Telescope windows: low-vision scopes to cloaks

望远镜窗口：从低视力瞄准镜到斗篷

• 批准号: EP/M010724/1
• 负责人: Johannes Courtial
• 金额: $ 58.73万
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FM010724%2F1
• 关键词: Telescope; windows; low; vision; scopes

We propose building several novel optical instruments that extend the possibilities of conventional ray optics designs by utilising pixellated ray optics.The Glasgow team has pioneered micro-structured sheets called telescope windows (TWs), currently at the early demonstrator stage, that can perform very general light-ray-direction changes. They consist of arrays of micro-telescopes and can be understood as pixellated optical components (each telescope being a pixel) which introduce, at the boundaries between neighbouring pixels, discontinuities in the transmitted light beams. TWs therefore remove the global continuity of wave fronts, which in turn is assumed in the derivation of a number of properties (and therefore limitations) of light-ray fields. If the pixel size is chosen appropriately, the pixellation can be almost unnoticeable. The vision of this work is that, by replacing globally continuous wave fronts with piecewise continuous wave fronts, the possibilities offered by optics, specifically ray optics, can be significantly extended.The first applications of this technology form the focus of this proposal:* TWs can form pixellated transformation-optics (PTO) devices that work across the entire visible wavelength range.* TWs can distort the view as if the observer was moving at relativistic speed.*TWs form the basis of novel, low-cost, high-comfort, low-vision aids.Together, the applicants have the expertise to realise this wide-ranging project: DR is a world leader in micro-machining, enabling us to manufacture TW devices. GL and JG's ophthalmology and commercialisation expertise places us ideally to develop novel low-vision aids. We are also experts in pixellated ray optics (JC), relativity (MH, NG), mathematical physics (CW), and outreach (MH).We are applying for funding now to enable us to produce demonstrators of TW devices, illustrating the wide applicability of our technology, evaluating the limitations and quality of such devices, and investigating the production methods required for this new class of optical instrumentation.

我们建议建立几个新的光学仪器，扩展传统的射线光学设计的可能性，利用像素化的射线optical.The格拉斯哥团队已经率先微结构片称为望远镜窗口（TW），目前在早期的演示阶段，可以执行非常一般的光线方向的变化。它们由微型望远镜阵列组成，可以理解为像素化的光学组件（每个望远镜是一个像素），在相邻像素之间的边界处，在透射光束中引入不连续性。因此，TW消除了波前的全局连续性，这反过来又在推导光线场的许多属性（以及因此的限制）时假设。如果像素大小选择得当，像素化几乎不会被注意到。这项工作的愿景是，通过用分段连续波前取代全局连续波前，光学，特别是射线光学提供的可能性可以大大扩展。这项技术的第一个应用形成了这项建议的重点：* TW可以形成像素化变换光学（PTO）器件，在整个可见光波长范围内工作。* TW可以扭曲视图，好像观察者以相对论速度移动。TW构成了新型、低成本、高舒适度、低视力辅助设备的基础。申请人共同拥有实现这一广泛项目的专业知识：DR是微加工领域的世界领导者，使我们能够制造TW设备。GL和JG的眼科和商业化专业知识使我们成为开发新型低视力辅助设备的理想选择。我们也是像素化射线光学（JC）、相对论（MH，NG）、数学物理（CW）和外延（MH）领域的专家。我们正在申请资金，以使我们能够生产TW设备的演示品，说明我们技术的广泛适用性，评估此类设备的局限性和质量，并调查这一新类别光学仪器所需的生产方法。

项目成果

Skew-lens image rotator.

• DOI: 10.1364/oe.458158
• 发表时间: 2022-05
• 期刊: Optics express
• 影响因子: 3.8
• 作者: Jakub Bělín;Gergely Ferenczi;J. Courtial

A new concept of imaging system: telescope windows

• DOI: 10.1117/12.2289657
• 发表时间: 2018-03
• 作者: C. Bourgenot;E. Cowie;L. Young;G. Love;J. Girkin;J. Courtial

Experimental demonstration of ray-rotation sheets.

射线旋转片的实验演示。

• DOI: 10.1364/josaa.35.001160
• 发表时间: 2018
• 期刊: Journal of the Optical Society of America. A, Optics, image science, and vision
• 作者: Courtial J

Optical triangulations of curved spaces

• DOI: 10.1364/optica.378357
• 发表时间: 2020-02
• 期刊: Optica
• 影响因子: 10.4
• 作者: Dimitris Georgantzis Garcia;G. Chaplain;Jakub Bělín;T. Tyc;C. Englert;J. Courtial

Relativistic photography with a wide aperture

大光圈相对论摄影

• DOI: 10.1364/josaa.37.000123
• 发表时间: 2019
• 期刊: Journal of the Optical Society of America A
• 作者: Gray N