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Medium-expansion optical fiber image transmission element and preparation method thereof

A technology of optical fiber image transmission and components, applied in the field of optoelectronics

Active Publication Date: 2021-11-05
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem that the optical fiber image transmission components in the prior art are all high-expansion systems, and to reduce the thermal expansion coefficient of the optical fiber image transmission components, the present invention provides a medium-expansion optical fiber image transmission component and its preparation method

Method used

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  • Medium-expansion optical fiber image transmission element and preparation method thereof
  • Medium-expansion optical fiber image transmission element and preparation method thereof
  • Medium-expansion optical fiber image transmission element and preparation method thereof

Examples

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Effect test

Embodiment 1

[0071] Preparation of medium expansion core glass:

[0072] Select raw material by table 1 embodiment 1 glass composition, and require the oxide compound such as Fe of variable valence element in the glass raw material 2 o 3 etc. are strictly controlled, and the finished glass Fe 2 o 3 The content is less than 100PPm, and the ingredients meet the glass chemical composition in Table 1, and then quartz sand, aluminum hydroxide, boric acid, calcium carbonate, barium carbonate, lanthanum oxide, niobium oxide, tantalum oxide, yttrium oxide, zinc oxide, titanium dioxide, Put zirconia and tin oxide into a platinum crucible and melt at 1400°C for 6 hours. During the glass melting process, stir the glass twice to make the glass melt evenly. After the glass is melted, lower the temperature to 1320°C. Clarify at ℃ for 2 hours, then cast the molten glass into the specified test product requirements, and then anneal, the annealing process is 625 ℃ for 1 hour, then cool down to 60 ℃ in 1...

Embodiment 2

[0081] Preparation of medium expansion core glass:

[0082] The actual composition of the glass refers to Example 2 of Table 1. Using the same raw material requirements as in Example 1, quartz sand, aluminum hydroxide, boric anhydride, calcium carbonate, barium nitrate, lanthanum oxide, niobium oxide, tantalum oxide, yttrium oxide, zinc oxide , titanium dioxide, zirconia and tin oxide were put into a platinum crucible and melted at 1350°C for 8 hours. During the glass melting process, the glass was stirred once to make the glass melt evenly. Cool down to 1300°C for 1 hour, then cast the molten glass into the specified test product requirements, and then anneal. The annealing process is 600°C for 1 hour, then cool down to 60°C for 12 hours, and then cool with the furnace to room temperature. Using the same test conditions as in Example 1, Table 1 shows the basic properties of the samples. (1) The refractive index is 1.82; (2) The average coefficient of linear expansion at 30-...

Embodiment 3

[0091] Preparation of medium expansion core glass:

[0092] Refer to Example 3 in Table 1 for the actual composition of the glass, use the same raw materials and raw material requirements as in Example 1, melt at a temperature of 1450 ° C for 4 hours, and stir the glass twice during the glass melting process to make the glass melt Evenly, after the glass is melted, it is cooled to 1340°C for 2 hours to clarify, and then the molten glass is cast into the specified test product requirements, and then annealed. The annealing process is 650°C for 1 hour, and then cooled to 60°C, and then cooled to room temperature with the furnace. Using the same test conditions as in Example 1, Table 1 shows the basic properties of the samples. (1) The refractive index is 1.82; (2) The average coefficient of linear expansion at 30-300°C is 66.830×10 -7 / °C.

[0093] The original expansion optical fiber image transmission in the preparation:

[0094] (1) Monofilament drawing: Finely grind and ...

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Abstract

The invention discloses a medium-expansion optical fiber image transmission element and a preparation method thereof, and the preparation method comprises the steps: (1) enabling a core material glass rod and a skin material glass tube to be matched for monofilament drawing, and enabling the diameter of a monofilament to be 3.12 + / -0.02 mm; (2) arranging the drawn monofilaments into a primary composite rod, and drawing the primary composite rod into a hexagonal primary multifilament with the opposite side size of 1.200 + / -0.025 mm; (3) arranging the drawn primary multifilaments into a secondary composite rod, and drawing the secondary composite rod into a hexagonal secondary multifilament with the opposite side size of 1.110 + / -0.025 mm; (4) cutting and truncating the drawn secondary multifilaments, arranging the cut secondary multifilaments into row plate sections, putting the row plate sections into a mold, and performing hot melt pressing molding to obtain medium-expansion optical fiber image transmission element blank plate sections; and (5) performing rounding, cutting, end face grinding and polishing and the like on the prepared medium-expansion optical fiber image transmission element blank plate sections to prepare a blank, and performing heating torsion forming or stretching forming on the blank to obtain a medium-expansion optical fiber image inverter or a medium-expansion optical fiber light cone. The medium-expansion optical fiber image transmission element can be applied to a low-light-level image intensifier.

Description

technical field [0001] The invention relates to the field of optoelectronics, in particular to a medium-expansion optical fiber image transmission element and a preparation method thereof. Background technique [0002] Optical fiber image transmission components include optical fiber panels, optical fiber image inverters, optical fiber cones, optical fiber image transmission bundles, etc. Optical fiber image transmission components are photoelectric imaging devices with excellent performance, which use unique leather materials, core materials and absorbent materials Glass is produced by the drawing process of vacuum control and rod tube combination, so that the product has good air tightness, small distortion, less spots, simple structure, small volume, light weight, large numerical aperture, high light transmission efficiency, and inter-stage The coupling loss is small, the coupling efficiency is high, the resolution is high, the image transmission is clear and real, the op...

Claims

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Application Information

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IPC IPC(8): C03C13/00C03C13/04C03B37/028C03B37/025C03B37/012G02B6/06
CPCC03C13/00C03C13/04C03C13/045C03B37/025C03B37/028C03B37/0128G02B6/06G02B6/08C03C3/068C03B37/01268C03B37/01214C03B37/15C03B23/207C03C13/046C03B2203/40C03C2213/00
Inventor 张磊曹正博贾金升王云赵越张弦汤晓峰石钰张敬樊志恒许慧超于浩洋宋普光王爱新洪常华
Owner CHINA BUILDING MATERIALS ACAD
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