A polar azimuth absolute zero calibration standard, device and method of use
By depositing polarization gratings and alignment marks on the surface of a standard prism, and combining this with a standard platform and a parallel light source, the complexity and error problems of absolute zero polarization azimuth angle calibration were solved, achieving an efficient and accurate calibration process.
CN119714541BActive Publication Date: 2026-03-24HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES
3 Cites 0 Cited by
Patent Information
- Application Number
- CN202411779141.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2026-03-24
- Estimated Expiration
- 2044-12-05
AI Technical Summary
Technical Problem
The existing technology for calibrating the absolute zero polarization azimuth angle is complex, time-consuming, and prone to errors, making it difficult to apply widely.
Method used
A polarization grating and alignment marks are deposited on the surface of a standard prism. The polarization grating coating is formed by photolithography or scribing techniques. The absolute zero position of the polarization azimuth angle is calibrated by combining a standard platform and a parallel light source.
Benefits of technology
It simplifies the absolute zero-position calibration process of polarization azimuth angle, reduces equipment requirements, and improves the repeatability of calibration.
✦ Generated by Eureka AI based on patent content.
Abstract
The application provides a standard device for polar azimuth absolute zero position calibration, a device and a use method. The standard device comprises a standard prism and a polar grid plating layer. The polar grid plating layer is arranged on one surface of the standard prism. The polar grid plating layer comprises a polar grid and an alignment mark. The polar grid is arranged in a central region of the polar grid plating layer. The alignment mark is arranged on both sides of the polar grid. The standard device for polar azimuth absolute zero position calibration greatly simplifies the calibration process of the polar azimuth absolute zero position, reduces the equipment conditions of the calibration, and improves the repeated precision of the polar azimuth absolute zero position calibration.
Need to check novelty before this filing date? Find Prior Art