概括
这项研究引入了一种新的双通道全景环状透镜 (PAL),使用自由形镜进行同时成像和飞行时间 (TOF) 检测. 这种集成系统消除了校准问题,并增强了大视野位置检测.
科学领域:
- 光学和光子学 在光学和光子学.
- 光学工程是指光学工程.
- 自由形式的光学.
背景情况:
- 传统的全景环状镜头 (PAL) 通常需要单独的成像和深度传感系统,导致校准复杂性.
- 将可见光成像和飞行时间检测 (TOF) 集成到单个光学系统中,在保持空间和时间一致性方面存在挑战.
- 自由形态光学为复杂的光学功能提供了先进的设计灵活性,包括多通道系统.
研究的目的:
- 提出和演示一种双通道全景环状透镜 (PAL) 系统,能够同时进行可见光成像和飞行时间 (TOF) 点矩阵检测.
- 为了克服相对位置校准和图像和TOF传感器在单一光学路径中的时间一致性的局限性.
- 为了实现一个紧的,集成的光学系统,具有很大的视野 (FoV) 来增强位置检测.
主要方法:
- 采用两个自由形表面镜的双通道PAL的设计,取代了传统的继电镜组.
- 灵感来自离轴三镜系统和AR镜来设计自由形表面.
- 对成像和TOF通道的光学性能进行分析,包括视野 (FoV),F数,F-θ扭曲和调制传递函数 (MTF).
主要成果:
- 拟议的双通道PAL实现了360°× (40°-100°) 的广泛FoV,用于成像和TOF通道.
- 低F-θ扭曲 (<3.6%) 和高光学性能被证明,MTF值超过0.285在144 lp/mm (成像) 和0.462在50 lp/mm (TOF).
- 在单个镜头系统中成功集成成像和TOF检测,解决校准和时间一致性问题.
结论:
- 开发的自由形式的双通道PAL为集成成像和TOF传感提供了一种新而紧的解决方案.
- 这种光学系统设计为在需要大视野的应用中准确的位置检测提供了有希望的方法.
- 使用自由形表面镜使多通道联合系统光学设计的新范式成为可能.
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