UV and IR Optics
CLZ Optical manufacturing optical lenses, except optical glass lenses, we can produces Silicon lenses, sapphire lenses, fused silica lenses. They are a good choice for Infrared optics and Ultraviolet optics.
CLZ Optical specializes in high-precision optical lenses for a wide range of UV (Ultraviolet) and IR (Infrared) applications. In addition to conventional optical glass lenses, we manufacture Silicon lenses, Sapphire lenses, and Fused Silica lenses, each designed to deliver superior optical performance across different spectral ranges. These materials are widely used in infrared imaging, UV inspection systems, scientific instrumentation, laser systems, and defense or aerospace optics.
1. Silicon Optical Lenses
Silicon (Si) optical lenses are one of the most commonly used materials in infrared optics. Silicon is a single-crystal material with low absorption in the 1.2–7μm infrared wavelength range, making it ideal for use in thermal imaging, night vision, CO₂ laser systems, and infrared spectroscopy.
Wavelength Range: 1.2 – 7μm
Refractive Index: ~3.42 at 5μm
Transmission: Excellent in mid-infrared, opaque in visible
Features: High refractive index, good mechanical strength, low density (2.33 g/cm³), and excellent thermal stability
CLZ Optical offers customized silicon lenses including plano-convex, plano-concave, and meniscus designs, with anti-reflective coatings optimized for specific infrared bands (e.g., 3–5μm or 8–12μm). These lenses are widely applied in infrared cameras, thermal sensors, and FTIR spectroscopy equipment.
2. Sapphire Optical Lenses
Sapphire optical lenses are engineered for applications that demand extreme durability and broad transmission ranges. Sapphire, being the second hardest crystal after diamond, provides outstanding scratch resistance, chemical stability, and thermal conductivity, making it ideal for harsh or high-pressure environments.
Transmission Range: 0.15 – 5.5μm
Refractive Index: ~1.76 at 1μm
Key Properties: Excellent UV and visible light transmission, high dielectric constant, resistance to chemical corrosion, and ability to withstand high temperatures
Because of its ability to transmit both UV and IR light, sapphire is commonly used in UV laser systems, defense optics, LED windows, medical instruments, and high-pressure viewports. For UV light transmission, sapphire is considered the best material after UV-grade fused quartz.
3. Fused Silica Lenses
Fused Silica (SiO₂) is a superior optical material with excellent transmittance from the deep UV (below 200 nm) to near IR (~2.5 μm). It exhibits very low thermal expansion, high laser damage threshold, and minimal birefringence, making it ideal for high-power laser and UV applications.
Transmission Range: 0.18 – 2.5μm
Refractive Index: ~1.46 at 589 nm
Advantages: Low thermal expansion, high purity, high resistance to thermal shock
Fused silica lenses are commonly used in semiconductor lithography, UV curing systems, laser focusing optics, and scientific research instruments requiring high stability and optical clarity.
4. Applications of UV and IR Optical Components
CLZ Optical’s UV and IR lenses are engineered for precision across industries such as:
Infrared Thermal Imaging Systems
UV Disinfection and Curing Equipment
Laser Processing Systems
Aerospace and Defense Targeting Systems
Medical Imaging Devices
Spectroscopy and Metrology Instruments
Each lens is manufactured under strict surface accuracy, transmission uniformity, and coating quality standards to ensure consistent optical performance in both laboratory and field conditions.
5. Custom Optical Design and Coatings
CLZ Optical provides custom optical design services, including aspheric surface processing, AR coating design, and precision polishing. Our coatings can be tailored for specific wavelength bands, such as:
UV Anti-Reflective Coatings (200–400nm)
NIR / MWIR / LWIR Coatings
Dual-Band or Broadband Coatings
Whether you require high transmission lenses for UV inspection or durable sapphire windows for infrared sensing, CLZ Optical delivers end-to-end optical solutions to meet your project’s technical requirements.
Why Choose CLZ Optical
Over 10 years of experience in optical material processing and lens customization
ISO-certified manufacturing facility with strict quality inspection
Support for prototype to mass production
Global delivery and technical consultation
CLZ Optical is your trusted partner in UV and IR optics, offering premium-quality lenses and optical components to enhance imaging performance, durability, and precision across advanced optical systems.
