单光子扫描成像系统及方法
By combining a super-oscillating element with a focusing component, a super-oscillating light spot is generated. By employing a shared optical path and sub-pixel scanning technology, the problems of poor imaging effect and low resolution in the existing technology are solved, and higher imaging resolution is achieved.
CN116840852BActive Publication Date: 2026-07-17TIANFU XINGLONG LAKE LAB
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANFU XINGLONG LAKE LAB
- Filing Date
- 2022-12-30
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing single-photon lidar imaging systems have large light spots, poor imaging effects, and low resolution, making it difficult to reach or exceed the diffraction limit.
Method used
By combining an ultra-oscillating element with a focusing component, an ultra-oscillating light spot is generated. The laser emitting unit and the echo receiving unit share the optical path, and combined with a sub-pixel scanning method, the imaging resolution is improved.
Benefits of technology
This resulted in a smaller central bright spot size and a higher sidelobe energy distribution, improving the resolution of single-photon scanning imaging.
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Smart Images
Figure CN116840852B_ABST
Abstract
本申请属于成像领域，具体公开了一种高分辨单光子成像系统，包括激光发射单元、超振荡单元、回波接收单元和光子探测单元，激光发射单元用于发射脉冲激光，超振荡单元包括超振荡元件和聚焦组件，超振荡元件用于对脉冲激光进行调制，经过调制后的脉冲激光经过聚焦组件后形成超振荡光斑投射至待测目标并产生回波，聚焦组件还用于接收待测目标产生的回波并将回波传输至回波接收单元，回波接收单元用于提取回波的中心能量后传输给光子探测单元，光子探测单元用于将接收回波光信号转变为电信号。该系统中超振荡元件与聚焦组件结合可以产生超振荡光斑，这种光斑的中心亮斑尺寸小于艾里斑尺寸，旁瓣能量分布较高，在激光三维成像中，可提升成像分辨率。
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