一种基于倾斜角度调制的低像素采样哈特曼波前传感器方法
By introducing a tilt modulator into the Shaker-Hartmann wavefront sensor for multi-angle modulation, the amount of information in the sub-spot image is increased, which solves the problem of insufficient wavefront detection accuracy under low pixel sampling and achieves higher wavefront detection accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF OPTICS & ELECTRONICS CHINESE ACAD OF SCI
- Filing Date
- 2023-10-20
- Publication Date
- 2026-07-17
AI Technical Summary
The Shaker-Hartmann wavefront sensor has insufficient wavefront detection accuracy under low pixel sampling conditions. There is a contradiction between the number of pixels occupied by the sub-aperture and the wavefront detection accuracy, making it difficult to achieve high-precision wavefront detection in high sampling frequency scenarios.
By introducing a tilt modulator to perform multi-angle tilt modulation on the incident light wave, the amount of information in the sub-spot image is increased, and the accuracy of wavefront detection is improved by using centroid offset calculation and wavefront restoration algorithm.
The accuracy of wavefront detection was significantly improved under low-pixel sampling conditions, resulting in a higher wavefront reconstruction effect.
Smart Images
Figure CN117387754B_ABST