Optical waveguide and method of manufacturing the same
Patent Information
- Application Number
- CN202280051173.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-07-27
- Filing Date
- 2022-06-23
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2042-06-23
AI Technical Summary
[0026]由于通过凹陷部的设计以及用于精整加工的刀具的设计确保了在至少一个或者各个预设为光线耦出部位的区域中，借助所使用的刀具无法对坯件表面进行精整加工，因此通过所述的解决方案，就可以以特别简单的方式仅在不被预设为光线耦出部位的区域中对坯件进行精整加工。因此，对于精整加工无需采取任何额外的预防措施，来确保不会对位于预设的至少一个或者各个光线耦出部位上的坯件表面进行精整加工。通过坯件的一个或者多个预设的采用凹陷部形式的几何构型，可以实现对精整加工的限制；由此，借助于这种限制，所述的解决方案尤其可以在增材制造的光导体的表面形成局部的粗糙度差异。
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Figure CN117751260B_ABST
Abstract
Claims
1. A method of manufacturing an optical body (1), wherein, A blank (3) of the light conductor (1) is formed by additive manufacturing, wherein the blank (3) is then finished with at least one cutting tool, wherein the blank (3) is finished only in at least one area not pre-designated as a light coupling portion (2), wherein a recess (4) is formed on at least one pre-designated section of the blank (3) by additive manufacturing of the blank (3), and at least one cutting tool is used for finishing the blank (3), the at least one cutting tool being designed such that at least one surface section of the blank (3) in the recess (4) cannot be reached by the at least one cutting tool used for finishing the blank (3), thereby retaining a rough surface formed by additive manufacturing, which serves as a coupling structure, such that light coupled into the light conductor is coupled out of the light conductor by diffuse scattering, the coupling structure being designed progressively to achieve a pre-designed brightness variation, or to homogenize it by an inclination opposite to the non-uniform radiation of the light conductor.
2. The method according to claim 1, characterized in that The recess (4) is formed on at least one designated section of the blank (3) by additive manufacturing of the blank (3), and at least one cutting tool is used for finishing the blank (3), the at least one cutting tool being designed such that the length and / or width and / or diameter and / or net width of the opening of the recess (4) is less than the length and / or width and / or diameter and / or area of the at least one cutting tool used for finishing the blank (3); and / or such that the depth of the at least one recess (4) is greater than the height of the at least one cutting tool used for finishing the blank (3).
3. The method according to claim 1 or 2, characterized in that The recess (4) is formed by additive manufacturing of the blank (3) and has a constant size or at least a size that varies with the direction of the recess.
4. The method according to claim 1 or 2, Its features are, The blank (3) is finished by grinding and / or polishing.
5. An optical conductor (1) manufactured using the method according to claim 4, the optical conductor having at least one region finished by grinding and / or polishing and at least one predetermined light-exiting portion (2) having a surface formed only by additive manufacturing and located in a recess (4) formed by additive manufacturing.
6. The optical conductor (1) according to claim 5. Its features are, The recess (4) has a constant size or at least one size that varies with the direction of the recess.
Citation Information
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