Colorless optical glass is designed with precise optical properties, including high transparency in the visible spectrum and no coloration due to selective absorption. Based on the Abbe number, it is categorized into crown and flint glass. The classification also depends on the refractive index, arranged from low to high. It is widely used in lenses, prisms, and mirrors for instruments like telescopes, microscopes, and cameras. Anti-irradiation optical glass is engineered to absorb high-energy radiation effectively. Lead-based glass is commonly used to block gamma rays and X-rays, while CaO-B₂O₃ system glass is effective against slow and thermal neutrons. These materials are essential in nuclear power plants, medical imaging equipment, and radiation shielding applications. Irradiation-resistant optical glass maintains stable transmittance in the visible range even after exposure to gamma or X-ray radiation. Its types and grades are similar to colorless optical glass, making it ideal for use in optical devices and viewing windows in high-radiation environments. Colored optical glass, also known as filter glass, selectively absorbs or transmits specific wavelengths of light in the ultraviolet, visible, and infrared regions. It can be classified based on its spectral characteristics—such as selective absorption, cutoff, or neutral gray types—and by the coloring mechanism, including ion coloring, metal colloid coloring, and sulfur/selenium coloring. This type of glass is primarily used in filters and optical components. Ultraviolet and infrared optical glass is specifically designed for high transmittance in the UV or IR range. It is used in specialized optical instruments and as window materials for systems that operate outside the visible spectrum. Optical quartz glass is composed mainly of silica and offers excellent thermal resistance, a low coefficient of thermal expansion, high mechanical strength, and good chemical stability. It is ideal for manufacturing precision optical components such as prisms, lenses, and mirrors that require performance across a wide range of wavelengths. In addition to these, there are other specialized optical glasses. For example, photomasks are used in the production of large-scale integrated circuits, liquid crystal display panels, and optical discs. Magneto-optical glass changes the polarization of light when exposed to magnetic fields, while acousto-optic glass allows light to be diffracted, reflected, or shifted using sound waves. These advanced materials play a crucial role in modern optical technology and scientific research. All aluminum alloy material has strong plasticity and never rusts. Fluorocarbon baking powder is delicate, smooth, and long-lasting without fading. The product is intelligently matched with various smart devices, making it a minimalist, luxurious, and youthful fashion design style. Advantages of aluminum doors: aluminum room door, soundproof interior doors,aluminum door for comfort room,wood room door,interior wood doors Foshan Nanhai Jinfancheng Metal Building Materials Products Co., Ltd. , https://www.landrandoor.com
Strong and durable: Aluminum alloy has high strength and hardness, can withstand the collision and wear in daily use, and has a long service life.
Corrosion resistance: Aluminum will naturally form an oxide film in the air. This oxide film can effectively prevent aluminum from further oxidation and corrosion, making it stable and not easily damaged in environments such as moisture, acid and alkali.
Good fire resistance: Aluminum alloy has good high temperature resistance, which can play a role in fire prevention to a certain extent and increase the safety of living.
Good sealing: Aluminum doors can be equipped with high-quality sealing strips to effectively improve the sealing performance of the door, and have significant sound insulation, heat insulation, and dustproof effects.
Various styles: Through different surface treatment processes and designs, a variety of colors and styles can be achieved to meet different decoration styles and personal preferences.
Environmental protection: Aluminum is a recyclable material and conforms to the concept of environmental protection.
Optical glass classification