CF50 Vacuum Viewing Window (High-Temperature-Resistant Model)
Category： CF observation window
The CF50 Vacuum Viewing Window (High-Temperature Version) is an optical window assembly designed for use with CF50 knife-edge flanges and specifically tailored for high- and ultra-high-vacuum (HV/UHV) applications involving high-temperature bake-out. It features a metal-to-glass vacuum brazed seal, with core optics made from high-temperature-resistant quartz or sapphire glass, paired with a 316L stainless steel flange. This configuration supports bake-out at temperatures up to 600°C, achieves an ultra-low leak rate of ≤10⁻¹⁰ Pa·m³/s, and is fully compatible with standard CF vacuum systems. It is ideal for real-time observation, optical monitoring, laser coupling, and other applications within vacuum chambers.
Overview
Technical Specifications
This product is a high-performance sealed assembly specifically developed to meet the demands of microwave transmission and visual observation in vacuum environments. Its core design objectives are high microwave transparency, absence of magnetic interference, superior vacuum sealing, and resistance to high temperatures and corrosion, while also ensuring structural stability and adaptability to diverse application scenarios. It is ideally suited for a wide range of applications, including research laboratories, semiconductor manufacturing processes, and vacuum microwave systems, providing stable and reliable hardware support for microwave transmission and optical observation in vacuum environments.
Key features:
1. High-Temperature Bake-Out Capability: Quartz/sapphire brazed construction supports UHV system bake-out at 500–600°C, significantly exceeding the limit of conventional borosilicate glass (≤300°C).
2. Ultra-high vacuum sealing: metal hard sealing, ultra-low leak rate, and zero organic volatiles, meeting the UHV requirements for semiconductors, thin-film deposition, and scientific research.
3. Excellent optical performance: high transmittance, low dispersion, and UV transmission, making it suitable for observation, spectroscopy, and laser coupling.
4. CF Standard Compatibility: Directly interfaces with CF50 flanges, offering convenient installation and high interchangeability, suitable for a wide range of vacuum chambers, furnaces, coating systems, and research equipment.
5. Stable and Durable: Excellent thermal shock resistance, corrosion resistance, and mechanical impact resistance; long service life and maintenance-free.
Typical applications:
1. Semiconductors: CVD/PVD/ALD vacuum deposition, etching, and ion implantation chamber monitoring
2. Vacuum Equipment: Vacuum Furnaces, Annealing Furnaces, High-Temperature Baking Systems, and Space Simulation Chambers
3. Research Instruments: Ultra-High Vacuum STM/AFM, Molecular Beam Epitaxy (MBE), Laser Vacuum System, and Materials Characterization Equipment
4. Optical Coupling: Laser Incidence, Spectral Detection, and Imaging Monitoring in a Vacuum Environment
| High-Altitude Vacuum Observation Window | |||||||||
| Model | A/mm | B/mm | D/mm | H/mm | n-φd/mm | Materials | Temperature | Degree of vacuum | Positive pressure |
| CF16 High-Temperature Vacuum Viewing Window | 34 (1.33") | 27 | 14 | 8 | 6-φ4.3 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF20 High-Temperature Vacuum Viewing Window | 54 (2.12") | 41.3 | 14 | 10.5 | 6-φ6.6 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF25m High-Temperature Vacuum Viewing Window | 54 (2.12") | 41.3 | 22 | 11.5 | 4-φ6.8 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF25 High-Temperature Vacuum Viewing Window | 54 (2.12") | 43 | 22 | 11 | 6-φ6.6 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF25b High-Temperature Vacuum Viewing Window | 60 (2.36") | 47 | 22 | 10.5 | 6-φ6.6 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF32 High-Temperature Vacuum Viewing Window | 70 (2.75") | 54 | 22 | 12 | 6-φ6.6 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF35 High-Temperature Vacuum Viewing Window | 70 (2.75") | 58.7 | 34 | 16.5 | 6-φ6.6 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF40 High-Temperature Vacuum Viewing Window | 70 (2.75") | 58.7 | 34 | 13 | 6-φ6.6 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF50 High-Temperature Vacuum Viewing Window | 86 (3.38") | 72.4 | 47 | 18 | 8-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF63 High-Temperature Vacuum Viewing Window | 114 (4.50") | 92.2 | 64 | 20 | 8-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF75 High-Temperature Vacuum Viewing Window | 117.4 (4.62") | 102.3 | 64 | 17.5 | 10-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF80 High-Temperature Vacuum Viewing Window | 130 (5.12") | 110 | 82 | 20 | 16-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF100 High-Temperature Vacuum Viewing Window | 152 (6.00") | 130.3 | 104 | 20 | 16-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF125 High-Temperature Vacuum Viewing Window | 171.5 (6.75") | 151.6 | 104 | 21 | 18-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF150 High-Temperature Vacuum Viewing Window | 202 (8.00") | 181 | 155 | 22 | 20-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF160 High-Temperature Vacuum Viewing Window | 203.2 (8.00") | 181 | 155 | 21 | 20-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF200 High-Temperature Vacuum Viewing Window | 253 (10.00") | 231.8 | 190 | 27 | 24-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF250 High-Temperature Vacuum Viewing Window | 305 (12.00") | 284 | 155 | 26 | 32-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF275 High-Temperature Vacuum Viewing Window | 336.6 (13.25") | 306.3 | 155 | 28 | 30-φ10.8 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF300 High-Temperature Vacuum Viewing Window | 368.3 (14.50") | 338.1 | 155 | 28 | 32-φ10.8 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF350 High-Temperature Vacuum Viewing Window | 419.1 (16.50") | 388.9 | 155 | 28 | 36-φ10.8 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| CF400 High-Temperature Vacuum Viewing Window | 469.9 (18.50") | 437.9 | 155 | 28 | 40-φ10.8 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa |
| High-Pressure Quartz Vacuum Viewing Window | |||||||||
| Model | A/mm | B/mm | D/mm | H/mm | n-φd/mm | Materials | Temperature | Degree of vacuum | Positive pressure |
| CF10 High-Pressure Quartz Vacuum Viewing Window | 25 (1.0") | 17.5 | 10 | 6 | 6-φ3.3 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF16 High-Pressure Quartz Vacuum Viewing Window | 34 (1.33") | 27 | 16 | 7.3 | 6-φ4.3 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF20 High-Pressure Quartz Vacuum Viewing Window | 54 (2.12") | 41.3 | 20 | 10.5 | 6-φ6.6 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF25m High-Pressure Quartz Vacuum Viewing Window | 54 (2.12") | 41.3 | 25 | 11.5 | 4-φ6.8 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF25 High-Pressure Quartz Vacuum Viewing Window | 54 (2.12") | 43 | 25 | 10.5 | 6-φ6.6 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF25b High-Pressure Quartz Vacuum Viewing Window | 60 (2.36") | 47 | 25 | 10.5 | 6-φ6.6 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF32 High-Pressure Quartz Vacuum Viewing Window | 70 (2.75") | 54 | 32 | 12 | 6-φ6.6 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF35 High-Pressure Quartz Vacuum Viewing Window | 70 (2.75") | 58.7 | 35 | 13 | 6-φ6.6 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF40 High-Pressure Quartz Vacuum Viewing Window | 70 (2.75") | 58.7 | 40 | 13 | 6-φ6.6 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF50 High-Pressure Quartz Vacuum Viewing Window | 86 (3.38") | 72.4 | 50 | 16 | 8-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF63 High-Pressure Quartz Vacuum Viewing Window | 114 (4.50") | 92.2 | 63 | 17.5 | 8-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF75 High-Pressure Quartz Vacuum Viewing Window | 117.4 (4.62") | 102.3 | 75 | 17.5 | 10-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF80 High-Pressure Quartz Vacuum Viewing Window | 130 (5.12") | 110 | 80 | 18 | 16-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF100 High-Pressure Quartz Vacuum Viewing Window | 152 (6.00") | 130.3 | 100 | 20 | 16-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF125 High-Pressure Quartz Vacuum Viewing Window | 171.5 (6.75") | 151.6 | 125 | 21 | 18-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF150 High-Pressure Quartz Vacuum Viewing Window | 202 (8.00") | 181 | 150 | 22 | 20-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF160 High-Pressure Quartz Vacuum Viewing Window | 203.2 (8.00") | 181 | 160 | 21 | 20-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF200 High-Pressure Quartz Vacuum Viewing Window | 253 (10.00") | 231.8 | 200 | 24.5 | 24-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF250 High-Pressure Quartz Vacuum Viewing Window | 305 (12.00") | 284 | 250 | 26 | 32-φ8.4 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF275 High-Pressure Quartz Vacuum Viewing Window | 336.6 (13.25") | 306.3 | 275 | 28 | 30-φ10.8 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF300 High-Pressure Quartz Vacuum Viewing Window | 368.3 (14.50") | 338.1 | 300 | 28 | 32-φ10.8 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF350 High-Pressure Quartz Vacuum Viewing Window | 419.1 (16.50") | 388.9 | 350 | 28 | 36-φ10.8 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| CF400 High-Pressure Quartz Vacuum Viewing Window | 469.9 (18.50") | 437.9 | 400 | 28 | 40-φ10.8 | 304 | Below 250 | 1×10⁻⁸ Pa | 0.2mpa |
| Ultra-High-Temperature Sapphire Vacuum Viewing Window | |||||||||
| Model | A/mm | B/mm | D/mm | H/mm | n-φd/mm | Materials | Temperature | Degree of vacuum | Positive pressure |
| CF16 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 34 (1.33") | 27 | 14 | 8 | 6-φ4.3 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF20 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 54 (2.12") | 41.3 | 14 | 10.5 | 6-φ6.6 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF25m Ultra-High-Temperature Sapphire Vacuum Viewing Window | 54 (2.12") | 41.3 | 22 | 11.5 | 4-φ6.8 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF25 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 54 (2.12") | 43 | 22 | 11 | 6-φ6.6 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF25b Ultra-High-Temperature Sapphire Vacuum Viewing Window | 60 (2.36") | 47 | 22 | 10.5 | 6-φ6.6 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF32 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 70 (2.75") | 54 | 22 | 12 | 6-φ6.6 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF35 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 70 (2.75") | 58.7 | 34 | 16.5 | 6-φ6.6 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF40 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 70 (2.75") | 58.7 | 34 | 13 | 6-φ6.6 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF50 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 86 (3.38") | 72.4 | 47 | 18 | 8-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF63 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 114 (4.50") | 92.2 | 64 | 20 | 8-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF75 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 117.4 (4.62") | 102.3 | 64 | 17.5 | 10-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF80 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 130 (5.12") | 110 | 82 | 20 | 16-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF100 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 152 (6.00") | 130.3 | 104 | 20 | 16-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF125 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 171.5 (6.75") | 151.6 | 104 | 21 | 18-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF150 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 202 (8.00") | 181 | 155 | 22 | 20-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF160 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 203.2 (8.00") | 181 | 155 | 21 | 20-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF200 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 253 (10.00") | 231.8 | 190 | 27 | 24-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF250 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 305 (12.00") | 284 | 155 | 26 | 32-φ8.4 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF275 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 336.6 (13.25") | 306.3 | 155 | 28 | 30-φ10.8 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF300 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 368.3 (14.50") | 338.1 | 155 | 28 | 32-φ10.8 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF350 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 419.1 (16.50") | 388.9 | 155 | 28 | 36-φ10.8 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| CF400 Ultra-High-Temperature Sapphire Vacuum Viewing Window | 469.9 (18.50") | 437.9 | 155 | 28 | 40-φ10.8 | 304 | Below 610 | 1*10^-9 Pa | 0.05mpa |
| Germanium Optical Vacuum Viewing Window | |||||||||
| Model | A/mm | B/mm | D/mm | H/mm | n-φd/mm | Materials | Temperature | Degree of vacuum | Positive pressure |
| CF10 German Optical Vacuum Viewing Window | 25 (1.0") | 17.5 | 10 | 6 | 6-φ3.3 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF16 Germanium Optical Vacuum Viewing Window | 34 (1.33") | 27 | 16 | 7.3 | 6-φ4.3 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF20 Germanium Optical Vacuum Viewing Window | 54 (2.12") | 41.3 | 20 | 10.5 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF25m Germanium Optical Vacuum Viewing Window | 54 (2.12") | 41.3 | 25 | 11.5 | 4-φ6.8 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF25 Germanium Optical Vacuum Viewing Window | 54 (2.12") | 43 | 25 | 10.5 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF25b Germanium Optical Vacuum Viewing Window | 60 (2.36") | 47 | 25 | 10.5 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF32 Germanium Optical Vacuum Viewing Window | 70 (2.75") | 54 | 32 | 12 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF35 Germanium Optical Vacuum Viewing Window | 70 (2.75") | 58.7 | 35 | 13 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF40 Germanium Optical Vacuum Viewing Window | 70 (2.75") | 58.7 | 40 | 13 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF50 Germanium Optical Vacuum Viewing Window | 86 (3.38") | 72.4 | 50 | 16 | 8-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF63 Germanium Optical Vacuum Viewing Window | 114 (4.50") | 92.2 | 63 | 17.5 | 8-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF75 Germanium Optical Vacuum Viewing Window | 117.4 (4.62") | 102.3 | 75 | 17.5 | 10-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF80 Germanium Optical Vacuum Viewing Window | 130 (5.12") | 110 | 80 | 18 | 16-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF100 Germanium Optical Vacuum Viewing Window | 152 (6.00") | 130.3 | 100 | 20 | 16-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF125 Germanium Optical Vacuum Viewing Window | 171.5 (6.75") | 151.6 | 125 | 21 | 18-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF150 Germanium Optical Vacuum Viewing Window | 202 (8.00") | 181 | 150 | 22 | 20-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF160 Germanium Optical Vacuum Viewing Window | 203.2 (8.00") | 181 | 160 | 21 | 20-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF200 Germanium Optical Vacuum Viewing Window | 253 (10.00") | 231.8 | 200 | 24.5 | 24-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF250 Germanium Optical Vacuum Viewing Window | 305 (12.00") | 284 | 250 | 26 | 32-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF275 Germanium Optical Vacuum Viewing Window | 336.6 (13.25") | 306.3 | 275 | 28 | 30-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF300 Germanium Optical Vacuum Viewing Window | 368.3 (14.50") | 338.1 | 300 | 28 | 32-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF350 Germanium Optical Vacuum Viewing Window | 419.1 (16.50") | 388.9 | 350 | 28 | 36-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| CF400 Germanium Optical Vacuum Viewing Window | 469.9 (18.50") | 437.9 | 400 | 28 | 40-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | 0.2mpa |
| Calcium Fluoride Optical Vacuum Viewing Window | |||||||||
| Model | A/mm | B/mm | D/mm | H/mm | n-φd/mm | Materials | Temperature | Degree of vacuum | No positive pressure |
| CF10 Calcium Fluoride Optical Vacuum Viewing Window | 25 (1.0") | 17.5 | 10 | 6 | 6-φ3.3 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF16 Calcium Fluoride Optical Vacuum Viewing Window | 34 (1.33") | 27 | 16 | 7.3 | 6-φ4.3 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF20 Calcium Fluoride Optical Vacuum Viewing Window | 54 (2.12") | 41.3 | 20 | 10.5 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF25m Calcium Fluoride Optical Vacuum Viewing Window | 54 (2.12") | 41.3 | 25 | 11.5 | 4-φ6.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF25 Calcium Fluoride Optical Vacuum Viewing Window | 54 (2.12") | 43 | 25 | 10.5 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF25b Calcium Fluoride Optical Vacuum Viewing Window | 60 (2.36") | 47 | 25 | 10.5 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF32 Calcium Fluoride Optical Vacuum Viewing Window | 70 (2.75") | 54 | 32 | 12 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF35 Calcium Fluoride Optical Vacuum Viewing Window | 70 (2.75") | 58.7 | 35 | 13 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF40 Calcium Fluoride Optical Vacuum Viewing Window | 70 (2.75") | 58.7 | 40 | 13 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF50 Calcium Fluoride Optical Vacuum Viewing Window | 86 (3.38") | 72.4 | 50 | 16 | 8-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF63 Calcium Fluoride Optical Vacuum Viewing Window | 114 (4.50") | 92.2 | 63 | 17.5 | 8-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF75 Calcium Fluoride Optical Vacuum Viewing Window | 117.4 (4.62") | 102.3 | 75 | 17.5 | 10-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF80 Calcium Fluoride Optical Vacuum Viewing Window | 130 (5.12") | 110 | 80 | 18 | 16-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF100 Calcium Fluoride Optical Vacuum Viewing Window | 152 (6.00") | 130.3 | 100 | 20 | 16-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF125 Calcium Fluoride Optical Vacuum Viewing Window | 171.5 (6.75") | 151.6 | 125 | 21 | 18-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF150 Calcium Fluoride Optical Vacuum Viewing Window | 202 (8.00") | 181 | 150 | 22 | 20-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF160 Calcium Fluoride Optical Vacuum Viewing Window | 203.2 (8.00") | 181 | 160 | 21 | 20-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF200 Calcium Fluoride Optical Vacuum Viewing Window | 253 (10.00") | 231.8 | 200 | 24.5 | 24-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF250 Calcium Fluoride Optical Vacuum Viewing Window | 305 (12.00") | 284 | 250 | 26 | 32-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF275 Calcium Fluoride Optical Vacuum Viewing Window | 336.6 (13.25") | 306.3 | 275 | 28 | 30-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF300 Calcium Fluoride Optical Vacuum Viewing Window | 368.3 (14.50") | 338.1 | 300 | 28 | 32-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF350 Calcium Fluoride Optical Vacuum Viewing Window | 419.1 (16.50") | 388.9 | 350 | 28 | 36-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF400 Calcium Fluoride Optical Vacuum Viewing Window | 469.9 (18.50") | 437.9 | 400 | 28 | 40-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| Zinc Selenide Optical Vacuum Viewing Window | |||||||||
| Model | A/mm | B/mm | D/mm | H/mm | n-φd/mm | Materials | Temperature | Degree of vacuum | No positive pressure |
| CF10 Zinc Selenide Optical Vacuum Viewing Window | 25 (1.0") | 17.5 | 10 | 6 | 6-φ3.3 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF16 Zinc Selenide Optical Vacuum Viewing Window | 34 (1.33") | 27 | 16 | 7.3 | 6-φ4.3 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF20 Zinc Selenide Optical Vacuum Viewing Window | 54 (2.12") | 41.3 | 20 | 10.5 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF25m Zinc Selenide Optical Vacuum Viewing Window | 54 (2.12") | 41.3 | 25 | 11.5 | 4-φ6.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF25 Zinc Selenide Optical Vacuum Viewing Window | 54 (2.12") | 43 | 25 | 10.5 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF25b Zinc Selenide Optical Vacuum Viewing Window | 60 (2.36") | 47 | 25 | 10.5 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF32 Zinc Selenide Optical Vacuum Viewing Window | 70 (2.75") | 54 | 32 | 12 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF35 Zinc Selenide Optical Vacuum Viewing Window | 70 (2.75") | 58.7 | 35 | 13 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF40 Zinc Selenide Optical Vacuum Viewing Window | 70 (2.75") | 58.7 | 40 | 13 | 6-φ6.6 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF50 Zinc Selenide Optical Vacuum Viewing Window | 86 (3.38") | 72.4 | 50 | 16 | 8-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF63 Zinc Selenide Optical Vacuum Viewing Window | 114 (4.50") | 92.2 | 63 | 17.5 | 8-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF75 Zinc Selenide Optical Vacuum Viewing Window | 117.4 (4.62") | 102.3 | 75 | 17.5 | 10-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF80 Zinc Selenide Optical Vacuum Viewing Window | 130 (5.12") | 110 | 80 | 18 | 16-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF100 Zinc Selenide Optical Vacuum Viewing Window | 152 (6.00") | 130.3 | 100 | 20 | 16-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF125 Zinc Selenide Optical Vacuum Viewing Window | 171.5 (6.75") | 151.6 | 125 | 21 | 18-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF150 Zinc Selenide Optical Vacuum Viewing Window | 202 (8.00") | 181 | 150 | 22 | 20-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF160 Zinc Selenide Optical Vacuum Viewing Window | 203.2 (8.00") | 181 | 160 | 21 | 20-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF200 Zinc Selenide Optical Vacuum Viewing Window | 253 (10.00") | 231.8 | 200 | 24.5 | 24-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF250 Zinc Selenide Optical Vacuum Viewing Window | 305 (12.00") | 284 | 250 | 26 | 32-φ8.4 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF275 Zinc Selenide Optical Vacuum Viewing Window | 336.6 (13.25") | 306.3 | 275 | 28 | 30-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF300 Zinc Selenide Optical Vacuum Viewing Window | 368.3 (14.50") | 338.1 | 300 | 28 | 32-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF350 Zinc Selenide Optical Vacuum Viewing Window | 419.1 (16.50") | 388.9 | 350 | 28 | 36-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
| CF400 Zinc Selenide Optical Vacuum Viewing Window | 469.9 (18.50") | 437.9 | 400 | 28 | 40-φ10.8 | 304 | Water cooling available | 1*10^-9 Pa | The lens is too brittle. |
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