Multi-angle synthetic illumination super-diffraction imaging system and method based on coded modulation

By using a multi-angle synthetic illumination super-diffraction imaging system with coded modulation, and employing a spatial light modulator and a macroscopic Fourier stacking algorithm, the problem of diffraction limit at the macroscopic scale was solved, achieving high-resolution imaging and a large equivalent aperture.

CN122449779APending Publication Date: 2026-07-24INST OF OPTICS & ELECTRONICS CHINESE ACAD OF SCI
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF OPTICS & ELECTRONICS CHINESE ACAD OF SCI
Filing Date
2026-06-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing technologies struggle to overcome the diffraction limit on a macroscopic scale, traditional optical systems have limited resolution, computational super-resolution imaging relies on prior models and is prone to artifacts, and structured light illumination offers limited resolution improvement.

Method used

A multi-angle synthetic illumination super-diffraction imaging system based on coded modulation is adopted. The illumination laser is encoded and modulated using a spatial light modulator. High-resolution images are reconstructed through multi-angle illumination and macroscopic Fourier stacked imaging algorithms, avoiding the use of mechanical scanning devices.

Benefits of technology

It achieves imaging with a larger equivalent optical aperture and higher resolution. The system is simple and compact, avoids limited field of view and dispersion of illumination energy, and has clear reconstruction results, making it suitable for active detection of faint targets.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122449779A_ABST
    Figure CN122449779A_ABST
Patent Text Reader

Abstract

The application discloses a multi-angle synthetic illumination super-diffraction imaging system and method based on coding modulation, relates to the field of optical imaging technology, and utilizes a spatial light modulator (SLM) to code and modulate a coherent illumination light field to realize the effect of similar angle-variable illumination without any mechanical device driving laser scanning. In addition, the application also freely adjusts the illumination spot size through phase coding to realize different illumination field angles, effectively avoids problems such as limited field angle and excessive dispersion of illumination energy and the like. The application can effectively improve the diffraction blur problem caused by the limited optical aperture in macro imaging, and the system is simple and compact, does not need high-precision displacement device assistance, and can realize a larger equivalent aperture and higher imaging resolution.
Need to check novelty before this filing date? Find Prior Art