具有极低的热膨胀系数，极高的耐温性，好的化学稳定性，优良的电绝缘性，低而稳定的超声延迟性能，最佳的透紫外光谱性能以及透可见光及近红外光谱性能，并有着高于普通玻璃的机械性能。
光学玻璃具有优良的光谱特性，它既透过红外光线，又透过紫外光线。此外，还有用于大型积体电路制造的光掩膜板、液晶显示器面板、影像光碟盘基薄板玻璃。光学光学玻璃的可见光透过性能很好，对于一些要求既透过可见光又要透过红外光的光学系统，该类玻璃是理想的材料。在红外技术应用中，用红外光学光学玻璃透镜、反射镜等光学元件装备起来的红外线测向仪、红外线换向器、红外线通讯设备等，在国民经济各个领域及军事上都有重要用途
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.
