Micro-nano optical element, optical lens and camera
By depositing a filter film on the first surface of the optical element and designing a stepped structure on the second surface, the problems of high cost and low resolution of existing spectral imaging technology are solved, achieving efficient acquisition and filtering of light in preset wavelength bands and improving imaging quality.
CN224303877UActive Publication Date: 2026-05-29TIANFU XINGLONG LAKE LAB
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Patent Information
- Application Number
- CN202520994473.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-29
- Estimated Expiration
- 2035-05-20
AI Technical Summary
Technical Problem
Existing spectral imaging technologies are costly and have low image resolution, and cannot effectively filter out light outside of preset wavelengths.
Method used
Micro-nano optical elements are used, including a filter film layer formed by coating the first surface and multiple annular step structures designed on the second surface. The step height is proportional to the wavelength of the preset band. The filter film layer blocks light of non-preset band and the step structure regulates the light output.
Benefits of technology
It achieves efficient acquisition and filtering of light in preset wavelength bands, improves imaging resolution, and reduces imaging costs.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model provides a micro-nano optical element, an optical lens and a camera, and relates to the technical field of spectral imaging. The micro-nano optical element comprises a first surface and a second surface which are oppositely arranged; the first surface comprises a filtering film layer, and the filtering film layer is used for blocking light beyond a preset wave band from passing through; the second surface comprises a plurality of annular step structures, and the height of the step structures is in direct proportion to the wavelength value of the preset wave band, so that light of the preset wave band can be effectively collected, light of other wave bands can be filtered, and high-resolution imaging of the preset wave band is realized.
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