Linear corrugated mirror
By designing a linear corrugated mirror with a long rectangular lens structure, the problems of low light concentration and easy damage of linear Fresnel lenses are solved, achieving effective solar energy concentration and cost reduction, making it suitable for solar energy conversion.
Patent Information
- Application Number
- CN202411412779.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2026-04-14
AI Technical Summary
Existing linear Fresnel lenses have low light concentration, are easily damaged, and are costly and have low production efficiency, especially the sharp corners of the teeth are prone to breakage.
Design a linear corrugated mirror with a long rectangular lens structure, a plane incident surface, longitudinal serrated edges on the exit surface, and an organic or amorphous inorganic non-metallic material. It adopts a single-layer structure with integral molding.
It achieves efficient focusing of sunlight, reduces costs and improves lens robustness, is suitable for solar energy conversion, and is easy to produce continuously.
Smart Images
Figure CN121857110A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of Fresnel lens technology, and in particular to a linear rippled lens. Background Technology
[0002] A Fresnel lens is a planar "convex lens" that has replaced convex lenses in many applications. One side of it is smooth, while the other side has serrations. These serrations allow light to be reflected or refracted within a specified spectral range, converging the light passing through the lens to a focal point.
[0003] Currently, linear Fresnel lenses suffer from defects such as low light concentration and susceptibility to damage, especially the sharp corners of the teeth, which are easily broken. Moreover, most of them are made of multi-layered composite materials, which not only results in high cost but also low production efficiency. Summary of the Invention
[0004] To address the aforementioned problems, this invention proposes a linear corrugated mirror, specifically comprising an incident surface and an exit surface, wherein the linear corrugated mirror is a long rectangular lens; the incident surface is planar; and the exit surface is provided with longitudinal serrated patterns.
[0005] Preferably, the tooth tip angle of the longitudinal sawtooth pattern gradually decreases from the middle of the corrugated mirror to both sides.
[0006] Preferably, the material of the linear corrugated mirror is an organic material or an amorphous inorganic non-metallic material.
[0007] Preferably, the linear corrugated mirror is integrally formed.
[0008] The beneficial effects of this invention are: This linear corrugated mirror converges parallel light into a straight line. As the sun rises and sets, by shining light onto the long, serrated, inclined surface at different angles, it can consistently converge sunlight onto a straight line, achieving efficient conversion of solar energy. One-piece molding makes it less prone to damage. The single-layer structure, made from a single material, reduces costs while enabling continuous production; moreover, the single-layer structure is not only more robust but also less likely to break. Attached Figure Description
[0009] Figure 1 This invention provides a three-dimensional view of a straight-line corrugated pattern. Figure 2 This invention provides a front view of a straight-line corrugated pattern. Figure 3 This invention provides an optical path diagram with straight-line ripples. Explanation of reference numerals in the attached diagram: 1-incident surface; 2-exit surface. Detailed Implementation
[0010] The embodiments of this disclosure are described below with reference to the accompanying drawings and specific examples. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. This disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure. Example
[0011] A linear corrugated mirror includes an incident surface and an exit surface, characterized in that the linear corrugated mirror is a long rectangular lens; the incident surface 1 is planar; and the exit surface 2 is provided with longitudinal teeth.
[0012] In some embodiments, the tooth tip angle of the longitudinal tooth pattern gradually decreases from the middle of the corrugated mirror to both sides.
[0013] It should be noted that, drawing on the Fresnel optical principle, concentric sawtooth patterns are unfolded and linearly arranged on one side of the substrate layer, with uniformly distributed microgrooves on the long beveled surface of the sawtooth. This allows light to be refracted through the sawtooth; changing the angle of refraction on the sawtooth surface alters the angle of the refracted light, effectively converging parallel light into a straight line, thus achieving a focusing effect. This linear corrugated mirror converges parallel light into a straight line. During the sunrise and sunset, by illuminating the long beveled surface at different angles, sunlight can always be converged into a straight line, achieving effective conversion of solar energy.
[0014] In some embodiments, the material of the linear corrugated mirror is an organic material or an amorphous inorganic non-metallic material.
[0015] In some embodiments, the linear corrugated mirror is integrally formed.
[0016] It should be noted that one-piece molding makes it less prone to damage. A single-layer structure, molded from a single material, allows for continuous production while reducing costs; furthermore, the single-layer structure is more robust and less likely to break.
[0017] The above description is merely illustrative of the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made without creative effort within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A linear corrugated mirror, comprising an incident surface and an exit surface, characterized in that, The linear corrugated mirror is a long rectangular lens; the incident surface is planar; and the exit surface is provided with longitudinal teeth.
2. A linear ripple mirror as described in claim 1, characterized in that, The angle of the tooth tip of the longitudinal tooth pattern gradually decreases from the middle of the corrugated mirror to both sides.
3. A linear ripple mirror as described in claim 1, characterized in that, The material of the linear corrugated mirror is an organic material or an amorphous inorganic non-metallic material.
4. A linear ripple mirror as described in claim 1, characterized in that, The linear corrugated mirror is integrally molded.