Optical Lenses

Precision Infrared Optical Windows for Thermal Imaging and Laser Systems Infrared Optical Windows and IR Laser Protection Windows are critical optical components used in thermal imaging systems, infrared sensors, industrial CO₂ laser equipment, aerospace instruments and medical imaging devices. Felix Glass manufactures high-precision infrared optical windows using ZnSe (Zinc Selenide), ZnS (Zinc Sulfide) and other infrared-transmitting materials. All products can be customized with optical coatings, dimensions, thicknesses and surface treatments to meet demanding industrial applications. Our infrared window solutions provide excellent transmission performance in the infrared spectrum while protecting sensitive internal optical systems from dust, moisture, pressure, high temperature and mechanical damage. ⸻ Available Infrared Window Materials ZnSe Infrared Optical Windows ZnSe optical windows offer excellent transmission at the 10.6μm wavelength used by CO₂ lasers, making them one of the most widely used materials for industrial laser protection windows. Applications include: • CO₂ laser cutting machines • Laser engraving systems • Laser marking equipment • Industrial optical instruments ⸻ ZnS Infrared Optical Windows ZnS windows provide superior mechanical strength and environmental durability compared with ZnSe. Applications include: • Thermal imaging cameras • Infrared surveillance systems • Aerospace optics • Marine and underwater optical equipment ⸻ IR Laser Protection Windows IR laser protection windows are designed to protect expensive laser optics from contamination caused by smoke, dust, molten metal particles and cutting debris. Our products feature: • High transmission coatings • Sapphire hard coating options • High-temperature resistance • Long service life • Low absorption loss Standard diameters from 10 mm to 30 mm are available, while custom dimensions can be manufactured according to customer drawings. ⸻ Custom Manufacturing Capabilities Felix Glass supports complete OEM and custom production services, including: • Diameter customization • Thickness customization • Edge chamfer processing • AR coating optimization • Infrared wavelength customization • Surface hard coating • Anti-corrosion treatment Engineering drawings and technical requirements can be reviewed by our optical team for rapid quotation and production planning. ⸻ Typical Applications Our infrared optical windows are widely used in: • Thermal imaging systems • Infrared cameras • CO₂ laser equipment • Aerospace optics • Medical imaging devices • Scientific instruments • Industrial automation systems • Underwater monitoring equipment ⸻ Quality Assurance Every infrared optical window undergoes: • Raw material inspection • Precision CNC machining • Optical polishing • Vacuum coating inspection • Transmission testing • Surface quality inspection • Dimensional verification This ensures stable optical performance and reliable long-term operation in demanding environments. ⸻ Why Choose Felix Glass • Professional optical component manufacturer • OEM and custom production support • ZnSe and ZnS material expertise • Advanced coating capabilities • Fast engineering response • Global B2B supply experience Whether you require standard infrared windows or fully customized IR laser protection optics, Felix Glass provides reliable manufacturing solutions for industrial, aerospace and scientific applications.

Our top-grade custom IR Aspheric Lenses are engineered as upgraded alternatives to traditional spherical infrared lenses, a top pick for global manufacturers of thermal imagers, automotive night vision and LiDAR infrared devices. Crafted from high-purity Germanium, Silicon, ZnS and ZnSe infrared crystals, our IR aspheric optics cover full SWIR, MWIR, LWIR infrared spectrum to satisfy high-standard infrared optical projects across automotive, security, aerospace and precision industrial inspection sectors. A single IR aspheric lens completely eliminates spherical aberration, replacing cumbersome multi-lens spherical combinations. It effectively miniaturizes your end products, reduces raw material costs and improves your finished equipment’s market competitiveness. We adopt ultra-precision single-point diamond turning process to achieve ultra-low surface roughness and tight dimensional tolerance, guaranteeing stable optical performance under extreme high/low temperature, vibration and humid outdoor working environments. Customizable broadband IR AR coating, scratch-resistant DLC hard coating and spectrum-targeted anti-reflection films are available to maximize infrared transmittance and boost lens durability against scratch, moisture and oxidation. We support full customization based on your optical drawings for focal length, diameter and curvature, flexible small MOQ for prototype testing and stable mass-volume delivery for bulk orders. Widely adopted in vehicle thermal night vision, industrial temperature measuring cameras, perimeter security infrared detectors and aerospace infrared sensing equipment, our high-performance IR aspheric lenses are trusted by worldwide optical designers and equipment manufacturers.

Our premium custom laser focus lenses beat generic laser optics with tiny focused spot and outstanding anti-burn performance, ideal upgrade for global laser machinery factories. Made of high-purity CVD ZnSe and superior fused silica, our F-theta, CO₂ and fiber laser focus lenses adopt precision polishing to reduce beam distortion, upgrade your cutting precision and finished yield. Custom IR AR coating improves transmittance and boosts laser damage threshold, avoiding lens ablation during long continuous high-power work. Full dimension customization available based on your drawings. Applied widely in laser marking, cutting and welding equipment for metal, plastic and leather processing. Flexible MOQ for sample trial and mass production with strict pre-delivery QC.

Our custom special optical lenses are tailor-made non-standard optics for medical endoscopy, automotive LiDAR and military infrared systems. We process complex irregular lens profiles with BK7, fused silica, sapphire and IR crystal materials, supporting full drawing customization. Custom functional AR coating optimizes transmittance and environmental durability. Flexible sample MOQ and rigorous QC suit prototype and large-batch orders.