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具有極低的熱膨脹系數(shù)，極高的耐溫性，好的化學(xué)穩(wěn)定性，優(yōu)良的電絕緣性，低而穩(wěn)定的超聲延遲性能，最佳的透紫外光譜性能以及透可見(jiàn)光及近紅外光譜性能，并有著高于普通玻璃的機(jī)械性能。

光學(xué)玻璃具有優(yōu)良的光譜特性，它既透過(guò)紅外光線，又透過(guò)紫外光線。此外，還有用于大型積體電路制造的光掩膜板、液晶顯示器面板、影像光碟盤(pán)基薄板玻璃。光學(xué)光學(xué)玻璃的可見(jiàn)光透過(guò)性能很好，對(duì)于一些要求既透過(guò)可見(jiàn)光又要透過(guò)紅外光的光學(xué)系統(tǒng)，該類玻璃是理想的材料。在紅外技術(shù)應(yīng)用中，用紅外光學(xué)光學(xué)玻璃透鏡、反射鏡等光學(xué)元件裝備起來(lái)的紅外線測(cè)向儀、紅外線換向器、紅外線通訊設(shè)備等，在國(guó)民經(jīng)濟(jì)各個(gè)領(lǐng)域及軍事上都有重要用途

Common Quality Issues of Coated Optical Glass and Prevention Methods
Causes of Issues:
Due to some optical differences between coated glass and ordinary transparent glass, stricter standards are required for installation and use. The main cause of potential thermal stress cracking is:
1. Design Considerations:
The design to prevent thermal cracking in coated glass must be carefully considered in architectural design as an important factor.
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Advantages of Optical Glass
? Low Thermal Expansion Coefficient:
Optical glass has an extremely low thermal expansion coefficient.
? High Temperature Resistance:
It exhibits excellent resistance to high temperatures.
? Chemical Stability:
It has outstanding chemical stability.
? Electrical Insulation:
Optical glass offers superior electrical insulation properties.
? Ultrasound Properties:
It has low and stable ultrasonic delay performance.
? Optical Spectrum Performance:
It provides excellent ultraviolet, visible, and near-infrared light transmittance.
? Mechanical Properties:
Optical glass has better mechanical performance compared to ordinary glass.
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Applications of Optical Glass
Optical glass has excellent spectral properties, transmitting both infrared and ultraviolet light. It is also used in:
? Photomask substrates for large-scale integrated circuit manufacturing
? Liquid crystal display (LCD) panels
? Image disc substrate thin glass
Optical glass with high visible light transmittance and infrared transmission is ideal for optical systems that require both.
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Infrared Technology Applications
In infrared technology, optical glass lenses, mirrors, and other components are used to equip devices such as:
? Infrared direction finders
? Infrared switches
? Infrared communication devices
These are widely used in various fields of the national economy and military applications.