Large-aperture ultra-smooth window
Our large aperture ultra-smooth window is a high-precision optical core component, built on high-quality base materials such as fused silica glass and microcrystalline glass and ultra-precision processing technology. It has excellent optical performance and strong structural stability, and can perfectly meet the demanding application requirements in high-end fields such as semiconductor manufacturing and testing, large aperture high-energy laser, etc. We provide high-transmittance and low-loss optical transmission solutions for all kinds of precision optical systems.
Core Product Parameters
The product meets the standards of high-end optical components in terms of size customization, surface shape accuracy, surface smoothness, etc. Key technical parameters are as follows:
Filtering metrics | Specific parameters |
External dimensions and tolerances | D=φ100 to φ330mm; H=20-60mm, tolerance ±0.2mm (size customizable) |
Effective area and dimensional tolerances | Valid area 80%, dimensional tolerance ±0.2 |
Surface shape accuracy | λ/20 @632.8nm |
Surface finish | 20-10 |
Surface roughness | Ra0.15nm to Ra0.3nm (Zygo profilometer 173*173um test area, 50x lens full frequency measurement) |
Core material | Fused quartz glass, microcrystalline glass |
Core product advantages
Enhanced by high-quality base materials:
Selected fused quartz glass and microcrystalline glass as core materials, with high light transmittance, low dispersion, high temperature resistance, strong resistance to laser damage, etc., suitable for complex working environments of high-energy laser and semiconductor processing.
Ultra-precision optical indicators:
Surface shape accuracy up to λ/[email protected], surface roughness as low as Ra0.15nm, finish 20-10, significantly reduce light scattering and transmission loss, ensuring accurate transmission of optical signals.
Large aperture customization:
Mainstream apertures cover φ100 to φ330mm, thicknesses 20 to 60mm, full size supports customization, dimensional tolerances strictly controlled within ±0.2mm, effective light transmission area up to 80%, meeting assembly requirements of different large optical systems.
High compatibility performance:
Optimized for application characteristics in semiconductor manufacturing and testing, large-aperture high-energy laser fields, structurally stable and wear-resistant, can operate stably under harsh conditions for a long time, enhancing the overall reliability of the optical system.
Core application areas
Core applications in semiconductor manufacturing and inspection, large-aperture high-energy laser, can be used as core optical components in various high-end optical systems such as semiconductor lithography, wafer inspection, high-energy laser emission and reception, and large-scale optical inspection equipment.
High-quality substrate selection:
Supporting large-aperture performance
Our Large-aperture Ultra-smooth Window is crafted from high-quality large-aperture substrates, including fused silica (JGS3), borosilicate glass (BK7), and sapphire. It offers excellent optical homogeneity and structural stability. Fused silica variants support broadband transmission from 180nm to 3μm and can withstand high-power laser irradiation, making them ideal for laser systems and telescopes. Borosilicate glass provides cost-effective performance for visible-range applications with good thermal shock resistance. Sapphire substrates offer exceptional hardness (Mohs 9) and transmission up to 5μm. suitable for harsh environment aerospace sensors. The substrate blank undergoes strict stress relief and flatness pre-processing to avoid deformation during ultra-precision polishing.
Ultra-precision Polishing and Processing:
Ensuring Large Aperture Uniformity
Our large-aperture ultra-smooth window is manufactured using advanced large-area polishing technologies, including computer-controlled polishing (CCP) and magnetorheological finishing (MRF). The optical surfaces achieve an ultra-low roughness of <0.1nm RMS, ensuring uniform light transmission without scattering across the entire large aperture. Surface flatness is controlled within λ/8 @632.8nm, minimizing wavefront distortion for high-resolution imaging and laser beam transmission. The window's thickness is optimized for structural rigidity, with a thickness tolerance of ±0.02mm to prevent bending under its own weight. Edge grinding and chamfering (0.5-1.5mm×45°) enhance mechanical strength and facilitate mounting in large optical assemblies.
Core Performance Advantages:
Meeting the Demands of Large Aperture Applications Ultraopto’s Large-aperture Ultra-smooth Window boasts high transmittance (>92% in target spectral ranges) with minimal absorption and reflection loss. The ultra-smooth surfaces ensure compatibility with high-reflection or anti-reflection coatings, further enhancing optical performance. The window exhibits excellent environmental adaptability, with resistance to temperature fluctuations (-60℃ to 200℃), humidity and industrial pollutants. Large apertures (up to 500mm+ in diameter) enable large-area light collection and transmission, critical for telescopes and high-power laser systems. Strict dimensional tolerance control ensures seamless integration into large optical mounts and frames, with parallelism controlled within <3 arc minutes.
Full-scenario application coverage:
Empowering large optical equipment Our Large-aperture Ultra-smooth Window is widely applied in aerospace, industrial and scientific fields. In astronomical telescopes, it serves as a protective window for primary mirrors, allowing large-area light collection while shielding from dust and moisture. For high-power laser systems, it transmits and shapes large-diameter laser beams for material processing, fusion research and laser weapons. In aerospace sensors and satellite remote sensing, it provides durable optical access for Earth observation and celestial detection. The window also finds use in large-scale industrial inspection systems, high-resolution imaging equipment and nuclear fusion experiments, delivering reliable performance in large-area optical applications.
Customized services:
Meeting personalized needs As a leading manufacturer of large-aperture optical components, Ultraopto offers fully customized Large-aperture Ultra-smooth Window solutions to meet your unique application requirements. Our professional R&D team can tailor key parameters including aperture size (100mm-500mm+), substrate material (fused silica, BK7, sapphire), thickness (2mm-50mm+), Surface roughness (down to 0.05nm RMS) and flatness (up to λ/20 @632.8nm). We support custom coating options (AR, HR, bandpass) and mounting designs (flanged, glued) for specific system integration needs. All custom windows undergo multi-stage strict quality inspection, including transmission measurement, flatness verification, surface roughness testing and mechanical strength assessment. with a detailed quality report provided to ensure compliance with your design specifications.
Quality Assurance and Technical Support:
Your Trusted Choice Backed by advanced large-aperture optical manufacturing technology and a complete quality control system, Ultraopto ensures stable batch supply and consistent product quality. Our production processes adhere to international large-optics standards, with each window subjected to rigorous testing using large-area interferometers and spectrophotometers. We provide professional technical consultation on window selection, mounting optimization and maintenance, helping you prevent damage to large-aperture components. Whether you need standard large windows for industrial inspection or custom high-precision components for telescopes, Ultraopto’s Large-aperture Ultra-smooth Window delivers exceptional performance and reliability.
For more detailed technical parameters, product quotation information or custom design solutions for our Ultraopto Large-aperture Ultra-smooth Window, please contact our professional sales and technical team through the official website, and we will provide you with efficient, personalized and professional optical solutions.
