Borosilicate windows
Borosilicate windows are made of borosilicate glass, such as Schott's Borofloat33. Their physical properties are characterized by a low coefficient of thermal expansion, high heat resistance and excellent chemical stability, as well as high light transmittance and weather resistance.
Optical characteristics
High light transmittance: Borosilicate windows have outstanding optical performance, which makes them perform exceptionally well in applications such as optical observation, providing a clear and bright view. It can ensure sufficient light and minimal distortion even as an observation window. Its light transmission band covers the entire band of ultraviolet light, visible light and near-infrared light. Due to its high transmittance characteristics, it is widely used in spectrometers, camera lenses and optical analysis equipment.
Low dispersion: Over a wide spectral range, the dispersion phenomenon of borosilicate windows is relatively low. This means that when light of different wavelengths passes through borosilicate windows, the differences in their propagation directions are relatively small, effectively avoiding the problems of image blurring and color deviation caused by dispersion. It is particularly suitable for imaging and analysis systems with high optical precision requirements.
Mechanical properties and chemical properties
High chemical stability: Borosilicate windows have extremely strong chemical corrosion resistance. Whether facing acidic substances, alkaline substances or other corrosive chemical reagents, borosilicate windows can maintain stable chemical properties and are not easily eroded. Even when exposed to harsh chemical environments for a long time, borosilicate windows can maintain their optical performance and structural integrity, ensuring that operators have a clear view of the internal conditions of the equipment.
Excellent thermal stability: Borosilicate windows have a low coefficient of thermal expansion. This characteristic enables them to effectively resist thermal stress in environments with rapid temperature changes and they are less likely to crack. In equipment that needs to withstand significant temperature fluctuations, borosilicate windows have demonstrated outstanding adaptability and reliability.
High strength and durability: Borosilicate windows have relatively high mechanical strength and possess excellent impact resistance and hardness. It can withstand a certain degree of external force impact and friction, and is not prone to scratches or damage, greatly extending the service life of the product. In application scenarios such as building doors and windows and vehicle windows, the high strength characteristics of borosilicate windows provide reliable safety guarantees for users.
Application fields and typical cases
Industrial field
Chemical equipment observation window: During the chemical production process, it is necessary to observe the reaction conditions inside the equipment in real time. The high chemical stability of borosilicate windows make them the preferred choice for observation windows of chemical equipment, allowing them to maintain a clear view for a long time in corrosive environments.
High-temperature equipment viewing window: In the high-temperature industrial field, borosilicate windows can serve as observation windows for high-temperature equipment. Its good thermal stability enables it to withstand high-temperature environments. The observation window adopts borosilicate windows, which can effectively avoid the problem of glass breakage caused by temperature changes.
The field of optical instruments
Spectrometer
Sample cell window: The borosilicate window of the spectrometer sample cell has good light transmission in the ultraviolet, visible and near-infrared spectral regions, allowing light to pass through the sample and enter the detection system. It is also resistant to chemical corrosion and will not be damaged by the chemical properties of the sample, ensuring the accuracy of the detection data and the durability of the instrument.
Optical channel components: Borosilicate windows are used to separate and protect the glass windows in the optical path of the spectrometer, which helps maintain the stability of the optical path. With stable optical performance, it avoids light loss and interference, enabling the spectrometer to accurately analyze and detect light of different wavelengths and meet the requirements of material composition analysis in multiple fields.
Camera lens
Some filters: The UV and other filters of the camera lens will use borosilicate windows. The borosilicate window can block unwanted light bands such as ultraviolet rays, without affecting the visible light imaging quality, ensuring clear images and accurate color reproduction. The material is sturdy and not easy to be scratched, which can protect the optical lenses inside the lens and be used for a long time.
CLZ Optical Co., Ltd. manufactures high-quality optical windows, including custom Fused Silica Windows, custom N-BK7 Windows, custom K9 Windows, custom Borosilicate Windows, custom Sapphire Windows, custom Silicon Windows, and other custom optical windows. Optical Windows are usually used in UV, VIS, and IR spectra. They are regarded as optical filters and protection covers.
