Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-refractive-index glass used for drawing and forming optical fiber panel and preparation method thereof

A low-refractive index, fiber-optic panel technology, applied in glass manufacturing equipment, glass production, bundled optical fibers, etc., can solve the problems of low pass rate of performance indicators of fiber-optic panel segments, loss of raw materials and auxiliary materials, and high production costs. The effect of visible light radiation transparency, good heat resistance and chemical stability, good high temperature crystallization performance

Active Publication Date: 2019-02-19
CHINA BUILDING MATERIALS ACAD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of preparing optical fiber panel sections by thermoforming has low processing efficiency, complicated auxiliary tools and equipment, serious consumption of raw materials and auxiliary materials (such as mica sheets), high production cost, low production efficiency, and long preparation cycle. The panel section has problems of low pass rate of various performance indicators such as shearing, magnification, dark spots, and resolution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-refractive-index glass used for drawing and forming optical fiber panel and preparation method thereof
  • Low-refractive-index glass used for drawing and forming optical fiber panel and preparation method thereof
  • Low-refractive-index glass used for drawing and forming optical fiber panel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] At first, select raw material according to table 1 embodiment 1 glass composition, and require Fe in glass raw material 2 o 3 Strictly controlled, the finished glass Fe 2 o 3The content is less than 150PPm, so that the ingredients meet the chemical composition of the glass in Table 1, and then use a platinum crucible to melt at 1550°C for 8 hours. After the glass batch is melted into a homogeneous glass melt, pour the glass melt into the preheated A good size is 70mm x 70mm x 10mm in a heat-resistant steel mold for casting, and then annealed. Its test performance is shown in Table 1, (1) the refractive index is 1.46; (2) the average linear expansion coefficient of 30-380°C is 80×10 -7 / °C; (3) The expansion softening point temperature of glass is 693°C; (4) The viscosity is 10 7.6 The softening point temperature of the glass at poise is 763°C; (5) The crystallization temperature of the glass is 970°C.

Embodiment 2

[0064] Select raw material by table 1 embodiment 2 glass composition, and require Fe in glass raw material 2 o 3 Strictly controlled, the finished glass Fe 2 o 3 The content is less than 150PPm, so that the ingredients meet the glass chemical composition in Table 1, and then use a platinum crucible to melt at 1500°C for 9 hours. After the glass batch is melted into a homogeneous glass melt, pour the glass melt into the preheated A good size is 70mm x 70mm x 10mm in a heat-resistant steel mold for casting, and then annealed. The basic properties of the samples are shown in Table 1. (1) The refractive index is 1.46; (2) The average linear expansion coefficient of 30-380°C is 78×10 -7 / °C; (3) The expansion softening point temperature of glass is 688°C; (4) The viscosity is 10 7.6 The softening point temperature of the glass at poise is 759°C; (5) The crystallization temperature of the glass is 960°C.

Embodiment 3

[0066] Select raw material by table 1 embodiment 3 glass composition, and require Fe in glass raw material 2 o 3 Strictly controlled, the finished glass Fe 2 o 3 The content is less than 150PPm, so that the ingredients meet the chemical composition of the glass in Table 1, and then use a platinum crucible to melt at 1600°C for 6 hours. After the glass batch is melted into a homogeneous glass melt, pour the glass melt into the preheated A good size is 70mm x 70mm x 10mm in a heat-resistant steel mold for casting, and then annealed. The basic properties of the samples are shown in Table 1. (1) The refractive index is 1.49; (2) The average linear expansion coefficient of 30-380°C is 86×10 -7 / °C; (3) The expansion and softening point temperature of glass is 685°C; (4) The viscosity is 10 7.6 The softening point temperature of the glass at poise is 748°C; (5) the crystallization temperature of the glass is 930°C.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
crystallization temperatureaaaaaaaaaa
crystallization temperatureaaaaaaaaaa
crystallization temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses low-refractive glass applied to drawing formation preparation of an optical fiber faceplate and a preparation method thereof. The low-refractive glass is prepared through the following oxides in mol percentage: 70-85mol.% of SiO2, 1-5mol.% of Al2O3, 1-8mol.% of B2O3, 0-5mol.% of MgO, 0-5mol.% of CaO, 0-5mol.% of Li2O, 3-15mol.% of Na2O, 3-15mol.% of K2O, 0-1mol.% of F2, and 0-0.2mol.% of SnO2. The glass has the following advantages: the refractive nD is low and is not greater than 1.50; the glass is free of heavy-metal oxides, such as As2O3, Sb2O3, BaO, PbO and CdO, which are harmful to the environment; the founding temperature is proper; the high-temperature viscosity fits core glass; the devitrification temperature of the glass is more than 900 DEG C. Therefore, the glass is particularly applied to the drawing formation preparation of the optical fiber faceplate. In addition, the glass is outstanding in visible light radiation transparency and high in chemical stability.

Description

technical field [0001] The invention relates to the field of production and manufacture of an optical fiber panel, in particular to a low-refractive-index glass used for drawing and forming an optical fiber panel and a preparation method thereof. Background technique [0002] Fiber optic faceplate (including fiber optic faceplate, fiber optic image inverter, fiber optic light cone, etc.) is a photoelectric imaging element with excellent performance, which has the advantages of simple structure, small size, light weight, good air tightness, small distortion, few spots, numerical aperture Large, high light transmission efficiency, small inter-stage coupling loss, clear and true image transmission, high resolution, optical zero thickness in image transmission, and can improve edge image quality. It is a low refractive index skin Material glass tube, high refractive index core material glass rod and absorbing material glass are used to combine the drawing process and vacuum cont...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/118C03C3/091C03B15/14G02B6/08
CPCY02P40/57
Inventor 张磊贾金升冯跃冲张弦
Owner CHINA BUILDING MATERIALS ACAD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com