Solid light microchannel array panel and preparation method thereof

Abstract

The invention discloses a solid light microchannel array panel and a preparation method thereof. The panel comprises a panel body, wherein the panel body comprises light-tight base bodies and multiple light-permeable channels; the light-tight base bodies are arranged among the light-permeable channels which are solid light channels. The preparation method comprises steps as follows: first light-permeable medium material bars and light-tight base body material bars are drawn into thin first light-permeable medium material bars and thin light-tight base body material bars; the thin first light-permeable medium material bars and the thin light-tight base body material bars are arranged and combined into primary composite bars; the primary composite bars are drawn into primary composite channel filaments; the primary composite channel filaments are made into blank composite filament bars; the blank composite filament bars are melt to form blank bars; the blank bars are subjected to follow-up processing, and the solid light microchannel array panel is obtained. The light channels have a large length-diameter ratio, the optical effect is good, requirements for environments in the packaging and use processes are low, and the panel is high in strength and efficiency, low in cost, flexible and capable of being widely applied to the field of optical elements.

Description

technical field [0001] The invention relates to the field of optical components, in particular to a solid optical microchannel array panel and a preparation method thereof. Background technique [0002] With the development of binary optics, MEMS and fingerprint acquisition technology, optical components with microhole array structure have been widely used, such as microhole aperture, photon sieve, laser microhole resonator, silicon microchannel plate, microchannel Plate (MCP), microhole array collimator for UnderDisplay mobile fingerprint recognition technology, etc. [0003] The essential role of the microhole array structure in optical components is to provide mutually isolated optical channels. [0004] At present, the methods for making similar microhole array structural elements at home and abroad include laser drilling method, photolithography method, microchannel plate method, light-assisted electrochemical etching method, etc. The same idea of ​​the channel has th...

AI Technical Summary

Problems solved by technology

[0005] 1) The length-to-diameter ratio of through holes processed by these manufacturing methods is generally less than 30, and there are quality defects such as blind holes and tapered holes, making it difficult to achieve ideal optical effects

[0006] 2) The processing efficiency is low. Due to the limitation of the depth of drilling, etching, acid dissolution or cleaning, these technical solutions can only realize sheet processing, the processing technology is complicated, and the processing process is required to be completed in a relatively clean environment. In order to prevent the through holes from being blocked by dust, the environmental requirements for packaging and use are almost strict; in the process of processing, it is necessary to adjust the opening ratio of the array structure by adjusting the thickness of the tube, which is not flexible enough

[0007] 3) No matter whether the products produced by these technical solutions are metal, semiconductor or inorganic materials, the strength of the products will be seriously reduced after the through holes are filled, which is not conducive to subsequent packaging and use

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