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Light surface glass titanium metal planar reflector and a special glass

A surface glass and special glass technology, applied in mirrors, instruments, optics, etc., can solve problems affecting the stability of the optical system, glass deformation, etc., and achieve the effects of simple structure, stable surface quality, and high reliability of assembly and adjustment

Active Publication Date: 2008-09-24
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Titanium alloy has low density, high rigidity, and good thermal stability. It is an ideal material for lightweight mirrors. However, due to the difference in expansion coefficient between K9 glass and titanium metal, the glass is deformed, which affects the stability of the optical system.

Method used

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  • Light surface glass titanium metal planar reflector and a special glass

Examples

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Effect test

example 1

[0016] Special glass composition is SiO 2 25wt%, PbO70wt%, Na 2 O1.2wt%, K 2 O1wt%, MgO2.0wt%, As 2 o 3 0.2wt%, of which, PbO with Pb 3 o 4 Introduce, Na 2 Na for O 2 CO 3 Introduced, K 2 O with K 2 CO 3 For introduction, MgO is introduced with basic magnesium carbonate, and the rest of the components are introduced with oxides. The introductions used analytically pure chemical reagents. Mix the raw materials well and evenly, add them into a platinum crucible with a temperature of 1260°C, melt for 10 hours, and stir to ensure good uniformity. The melt temperature is about 1050°C during casting, and the annealing temperature is 420°C. Obtain a glass blank, and then grind and polish it to make a 2mm glass plate.

[0017] Measured by industry standards, the expansion coefficient of the glass is 89×10 -7 / °C, the softening point is 460°C.

[0018] The titanium metal substrate is made of TC4 material, which is precision processed first, with a surface roughness of 1...

example 2

[0022] Special glass composition is SiO 2 40wt%, PbO5 2.5wt%, Na 2 O2.5wt%, K 2 O2.5wt%, MgO2.0wt%, As 2 o 3 0.5wt%, Pb for PbO 3 o 4 Introduce, Na 2 Na for O 2 CO 3 Introduced, K 2 O with K 2 CO 3 Introduction, MgO is introduced with basic magnesium carbonate, and the rest of the ingredients are introduced with oxides. The introductions used analytically pure chemical reagents. Mix the raw materials well and add them into a platinum crucible at a temperature of 1450°C. The melting time is 8 hours and stirred to ensure good uniformity. The melt temperature is about 1350°C during casting and the annealing temperature is 550°C. Obtain a glass blank, and then grind and polish it to make a 3mm glass plate. Measured by industry standards, the expansion coefficient of the glass is 80×10 -7 / °C, the softening point is 600°C.

[0023] The titanium metal substrate is made of TA2 material, which is precision processed first, with a surface roughness of 10 μm.

[0024] Wa...

example 3

[0027] Special glass composition is SiO 2 30wt%, PbO67.2wt%, Na 2 O1.5wt%, K 2 O0.5wt%, CaO0.5wt%, As 2 o 3 0.3wt%, of which, PbO with Pb 3 o 4 Introduce, Na 2 Na for O 2 CO 3 Introduced, K 2 O with K 2 CO 3 Introduced, CaO with CaCO 3introduced, and the rest of the ingredients were introduced with oxides. The introductions used analytically pure chemical reagents. Mix the raw materials well, add them into a platinum crucible with a temperature of 1350°C, melt for 10 hours, and stir to ensure good uniformity. The melt temperature is about 1200°C during casting, and the annealing temperature is 490°C. Obtain a glass blank, and then grind and polish it to make a 3mm glass plate. Measured by industry standards, the expansion coefficient of the glass is 84×10 -7 / °C, the softening point is 520°C.

[0028] The titanium metal substrate is made of TC4 material, which is precision processed first, with a surface roughness of 15 μm.

[0029] Clean the glass and metal w...

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Abstract

The invention discloses a lightweight surface glass Ti metal plane reflector, comprising Ti metal substrate, special type glass layer and reflecting film, where the Ti metal substrate is of pure Ti (TA1,TA2 or TA3), or Ti alloy (TC1, TC2, TC3, TC4, or TC6), and is of a plate structure or of a cellular structure with lightweight design, and the Ti substrate surface is processed by machining or laser method and has roughness of 0.8-15 mu m, and the special type glass layer is 0.2-2.5mm thick and comprises SiO2 25-40wt%, PbO 50-70wt%,R2 O1-5wt%,RO 0-2wt%, and As2O3 0.2-0.5wt%, and has expansion coefficient of 80-90*10-7 / deg.C; the reflecting film is a metal reflecting film vacuum-plated on the special type glass layer and having high reflection ratio. And its advantages: properties of special type glass and Ti metal match, its structure is simple, convenient to install and debug, and applied to optical systems in various fields of spaceflight, aviation, weapon, etc.

Description

technical field [0001] The invention relates to an optical device, in particular to a light-weight surface vitrified titanium metal plane reflector of a military optical system, and also relates to a special glass formula used in the reflector. Background technique [0002] With the continuous development of precision guidance, fire control, radar, aerospace remote sensing and other technologies, higher requirements are put forward for military optical systems, requiring reflectors to have good imaging quality in a wide range of electromagnetic bands. In addition to meeting optical requirements In addition, it is also required to increase the aperture, reduce the quality of the mirror and improve the imaging stability. [0003] At present, the reflectors mainly include: 1. Glass reflectors. This solution uses glass as a mirror, bonded to a metal substrate with epoxy resin. Glass is a traditional optical material with good optical performance and optical processability, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/08G02B1/00C03C3/07C03C3/062C03C4/00
CPCC03C3/07
Inventor 高祀建关铭朱永昌刘峻
Owner CHINA BUILDING MATERIALS ACAD
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