一种分光棱镜的新型分光薄膜及其制造方法
By employing an alternating metal-dielectric film structure in the beam splitter and combining it with an optimization algorithm to design the film thickness, the problems of complex dielectric film preparation and low metal film spectral efficiency are solved, achieving simplified preparation and high-efficiency spectral splitting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI MODERN ADVANCED ULTRA PRECISION MFG CENT
- Filing Date
- 2024-11-13
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the preparation of dielectric beam splitting films is complex and the changes in surface shape are difficult to control, while metal beam splitting films have low beam splitting efficiency and cannot meet the requirements of high-precision optical systems.
A novel spectral thin film was fabricated by employing an alternating structure of metal and high-refractive-index dielectric layers, combined with the transfer matrix method and needle-type optimization algorithm to design the film thickness. The film consists of an outer low-refractive-index dielectric antireflection film and a middle layer of alternating metal and high-refractive-index dielectric layers.
This simplifies the preparation process, improves the feasibility of preparing spectroscopic thin films and their spectroscopic efficiency, and meets the requirements of high-precision optical systems.
Smart Images
Figure CN119738903B_ABST