The refractive index of the monocrystalline silicon material is about 3.42, and the reflectivity of the silicon lens after polishing is about 30% in the air environment. Our common silicon lens and silicon window can be coated on the surface (Antireflection Coating), which can reduce the reflectivity to less than 1.5% between 3 to 5 um.
Some silicon elements, especially the silicon protected windows, are exposed to dust, acid, salt and so on in the harsh environment. The conventional multilayer antireflection coating will be damaged and affect the normal work of the equipment. At this time, we need to make DLC coating on the surface of the silicon lens.
Diamond-Like Carbon (DLC) Coated Silicon Windows are engineered for 3 to 5µm, making them ideal for infrared defense applications such as thermal imaging.
Silicon Lens,Silicon Optical Lens,Infrared Si Lens,Silicon Plano-Convex Lens China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com
The hardware tool industry encompasses a wide range of products, including manual tools, electric tools, pneumatic tools, cutting tools, agricultural equipment, lifting devices, measuring instruments, tool machines, grinding wheels, drills, polishing machines, accessories, and more. As modern technology continues to shape the industry, competition has become more intense than ever. To thrive in this environment, companies must deeply understand market trends and adapt quickly to stay ahead.
In today’s competitive landscape, domestic manufacturers need to focus more on innovation and customer service. China is now the world's largest exporter of power tools, but despite this dominance, challenges remain. Many companies still struggle with outdated R&D systems, low product performance, and limited brand recognition. Additionally, the industry faces issues such as low profit margins from exports, small company sizes, fragmented market structures, and rising raw material costs. These factors hinder long-term growth and development.
To overcome these obstacles, hardware tool manufacturers should embrace new opportunities by investing in research and development, enhancing product quality, and pursuing international certifications. Companies should also accelerate technological upgrades, improve production efficiency, and seek foreign investment to strengthen their market position. By fostering collaboration and focusing on sustainable growth, the industry can not only survive but also lead in the global market. It's time for the hardware tool sector to evolve, innovate, and build a stronger future.
Diamond-Like Carbon (DLC) Coated Silicon Windows provide anti-reflection coating on one surface and a specially designed DLC coating on the other surface, making these windows highly durable and ideal for harsh environments.
Silicon lens specifications:
Standard precision
High-precision
Dimension Tolerance
φ5-250mm+0/-0.2
φ3-350mm+0/-0.2
Thickness Tolerance
1-50mm+/-0.1
1-50mm
Centration
3 arc minute
1 arc minute
Surface Quality
60/40
20/10
Power(fringe@633nm)
N<λ/2@633nm(in 25mm)
N<λ/10@633nm(in 25mm)
Clear Aperture
>90%
>95%
Chamfer
Protected <0.5mmx45deg
Protected <0.5mmx45deg