SHANGHAI FAMOUS TRADE CO.,LTD
| Payment Terms | T/T |
| Supply Ability | By case |
| Delivery Time | 2-4 weeks |
| Packaging Details | custom cartons |
| Material | Optical Grade Single Crystal Silicon (Si) |
| Transmission Range | 1.2 – 8 μm |
| Typical Application Band | 3 – 5 μm (MWIR) |
| Optional Coating Band | 8 – 12 μm (LWIR), Custom IR Bands |
| Refractive Index | ~3.42 @ 3.9 μm |
| Lens Type | Plano-Convex / Bi-Convex / Plano-Concave / Bi-Concave |
| Brand Name | ZMSH |
| Place of Origin | China |
View Detail Information
Explore similar products
Fan Shaped Sector Sapphire Lens Optical Window Glass 6.25mm Thickness 9.0
Diameter 300mm Sapphire Optical Windows Clear Color 1mm - 100mm Thickness
Round Sapphire Optical Lenses For Device Viewing Window High Transmittance
Customized Shape Sapphire Crystal Glass 9.0 Hardness Wear Resistance To High
Product Specification
| Payment Terms | T/T | Supply Ability | By case |
| Delivery Time | 2-4 weeks | Packaging Details | custom cartons |
| Material | Optical Grade Single Crystal Silicon (Si) | Transmission Range | 1.2 – 8 μm |
| Typical Application Band | 3 – 5 μm (MWIR) | Optional Coating Band | 8 – 12 μm (LWIR), Custom IR Bands |
| Refractive Index | ~3.42 @ 3.9 μm | Lens Type | Plano-Convex / Bi-Convex / Plano-Concave / Bi-Concave |
| Brand Name | ZMSH | Place of Origin | China |
| High Light | Silicon lens MWIR anti-reflection coating ，Si lens infrared applications ，High-performance IR coated silicon lens | ||
Silicon (Si) lenses with IR anti-reflection (AR) coating are high-performance optical components designed for mid-wave and long-wave infrared optical systems. By combining optical-grade single crystal silicon with precisely engineered infrared AR coatings, these lenses significantly reduce surface reflection losses and enhance overall system transmission efficiency.
Silicon lenses are widely used in infrared imaging, thermal cameras, infrared sensing, and industrial inspection systems due to their excellent thermal stability, mechanical strength, and reliable infrared optical performance. With IR AR coating applied, silicon lenses provide improved contrast, higher signal-to-noise ratio, and superior optical efficiency in demanding infrared applications.
Silicon is a well-established infrared optical material with stable and high transmission in the 1.2–8 μm wavelength range, making it particularly suitable for 3–5 μm (MWIR) infrared applications.
Compared with other infrared materials, silicon lenses offer several important advantages:
High mechanical strength and excellent durability
Good thermal conductivity for efficient heat dissipation
Lower density and lighter weight compared to germanium lenses
Stable chemical properties suitable for harsh environments
Mature manufacturing processes enabling high-precision polishing
These characteristics make silicon lenses an ideal choice for infrared systems requiring long-term stability and reliable performance.
| Parameter | Specification |
|---|---|
| Material | Optical Grade Single Crystal Silicon (Si) |
| Transmission Range | 1.2 – 8 μm |
| Typical Application Band | 3 – 5 μm (MWIR) |
| Optional Coating Band | 8 – 12 μm (LWIR), Custom IR Bands |
| Refractive Index | ~3.42 @ 3.9 μm |
| Lens Type | Plano-Convex / Bi-Convex / Plano-Concave / Bi-Concave |
| Surface Figure | ≤ λ/10 @ 3.39 μm (custom available) |
| Surface Quality | 60/40 or 40/20 (Scratch/Dig) |
| Diameter Tolerance | ±0.02 mm (custom available) |
| Center Thickness Tolerance | ±0.02 mm |
| Clear Aperture | ≥ 90% of Diameter |
| Surface Roughness | ≤ 5 nm RMS |
| AR Coating Type | Infrared Anti-Reflection (IR AR Coating) |
| Coating Design | Single-band or Multi-band IR AR |
| Average Reflectance (Ravg) | ≤ 1.0% per surface (design wavelength) |
| Coating Sides | Single-side or Double-side |
| Operating Temperature | -40 °C to +200 °C |
| Thermal Conductivity | ~150 W/m·K |
| Density | ~2.33 g/cm³ |
| Environmental Stability | Industrial Grade |
| Customization | Size, focal length, tolerances, coating available |
Bare silicon surfaces have relatively high Fresnel reflection in the infrared region due to their high refractive index. To maximize infrared transmission, IR anti-reflection coatings are applied to the lens surfaces.
Key benefits of IR AR coating include:
Significant reduction of surface reflection losses
Increased total lens transmission efficiency
Improved image contrast and system sensitivity
Reduced stray light and optical interference
The IR AR coating can be optimized for specific wavelength ranges, including:
3–5 μm mid-wave infrared (MWIR)
8–12 μm long-wave infrared (LWIR)
Custom-designed infrared wavelength bands
The coatings feature strong adhesion, good environmental resistance, and long-term stability, making them suitable for industrial-grade and high-reliability infrared optical systems.
We offer a wide range of silicon lenses with IR anti-reflection coating, including:
Plano-convex, bi-convex, plano-concave, and bi-concave silicon lenses
Spherical and custom aspherical silicon lenses
Single-side or double-side IR AR coating
High-precision optical polishing with excellent surface quality
Tight control of focal length, thickness, and surface accuracy
Custom manufacturing is available to meet specific optical design requirements, including lens diameter, curvature, tolerance, and coating performance.
Silicon lenses with IR AR coating are widely used in:
Thermal imaging and infrared camera systems
Infrared temperature measurement and sensing devices
Industrial infrared inspection and monitoring
Infrared spectroscopy and scientific research equipment
High-power infrared laser and optical transmission systems
In these applications, silicon lenses with IR anti-reflection coating play a critical role in improving optical efficiency and system reliability.
High infrared transmission efficiency
Excellent thermal and mechanical stability
Optimized IR anti-reflection coating performance
Reduced optical losses and improved imaging quality
Custom design support and stable volume production
Silicon lenses offer good infrared transmission in the 1.2–8 μm wavelength range and are most commonly used in the 3–5 μm (MWIR) band. Silicon is not recommended for visible or near-visible applications due to its low transmission in those regions.
Silicon has a relatively high refractive index, which causes significant surface reflection on uncoated lenses. IR anti-reflection (AR) coating reduces these reflection losses, increases total transmission, and improves image contrast and signal-to-noise ratio in infrared optical systems.
The IR AR coating can be optimized for different wavelength ranges, including:
3–5 μm (MWIR)
8–12 μm (LWIR)
Custom infrared wavelength bands upon request
Coating performance can be tailored to specific system requirements.
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company
Year Established:
2013
Total Annual:
1000000-1500000
Ecer Certification：
Verified Supplier
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components widely used in electronics, op... SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components widely used in electronics, op...
Get in touch with us
Leave a Message, we will call you back quickly!