CF200 Vacuum Viewing Window (High-Temperature-Resistant Model)
Category： CF observation window
This product features a high-borosilicate/quartz high-temperature-resistant viewport combined with precision flange machining, and is compatible with CF200 standard vacuum flanges and vacuum chambers. It is designed for visual monitoring of internal operating conditions in vacuum systems, optical path transmission, and sealed isolation of the chamber, while delivering exceptional characteristics such as high light transmittance, outstanding high-temperature resistance, superior vacuum tightness, pressure and shock resistance, corrosion resistance, and dimensional stability. It finds extensive application in advanced vacuum research, high-temperature vacuum experiments, vacuum coating equipment, semiconductor manufacturing processes, and a wide range of high-temperature vacuum operating environments.
Overview
Technical Specifications
This product is a high-performance accessory specifically developed to meet the demands of chamber-process observation under high-vacuum and high-temperature conditions. With “high optical clarity, high-temperature stability, and reliable sealing” as its core design objectives, it strikes an optimal balance between superior optical performance and robust compatibility with extreme environments. It is perfectly suited for a wide range of vacuum and high-temperature experimental setups in university, research institute, and corporate laboratories, providing stable and dependable observational hardware support for processes such as vacuum coating, heat treatment, and plasma processing.
Key features:
1. High-Temperature Stability: Customized with high-temperature-resistant optical substrates and a sealed structure, this product can withstand prolonged exposure to high-temperature operating conditions without easily fogging, cracking, or deforming, thereby ensuring stable optical performance in high-temperature environments.
2. High-Transmittance, High-Clarity Observation: Made from high-purity optical materials, this product offers exceptional light transmittance and distortion-free imaging, enabling clear visualization of internal experimental processes within the chamber and meeting a wide range of optical recording and operational monitoring requirements.
3. Excellent sealing performance: The standard CF200 flange interface, combined with a high-vacuum adaptation structure, can be paired with oxygen-free copper gaskets to achieve high-vacuum sealing, completely eliminating leakage and loss and ensuring the chamber’s ultimate vacuum level.
4. Wide Compatibility and Convenience: Directly compatible with CF200-standard vacuum flanges, eliminating the need for additional adapter components. It is compatible with a variety of vacuum equipment, including magnetron sputtering systems, vacuum heat treatment furnaces, and high-temperature coating systems, and offers convenient installation and maintenance.
| High-Altitude Vacuum Observation Window | Bearing model | |||||||||
| 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 | 6201 |
| 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 | 6202 |
| 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 | 6204 |
| CF25 High-Temperature Vacuum Viewing Window | 54 (2.12") | 43 | 22 | 11 | 6-φ6.6 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa | 6205 |
| 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 | 6206 |
| CF32 High-Temperature Vacuum Viewing Window | 70 (2.75") | 54 | 22 | 12 | 6-φ6.6 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa | 6207 |
| 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 | 6208 |
| 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 | 6209 |
| 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 | 6210 |
| 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 | 6211 |
| 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 | 6212 |
| CF80 High-Temperature Vacuum Viewing Window | 130 (5.12") | 110 | 82 | 20 | 16-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa | 6213 |
| 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 | 6214 |
| 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 | 6215 |
| CF150 High-Temperature Vacuum Viewing Window | 202 (8.00") | 181 | 155 | 22 | 20-φ8.4 | 304 | Below 550 | 1*10^-9 Pa | 0.05mpa | 6216 |
| 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 | 6217 |
| 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 | 6218 |
| 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 German 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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