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Windows is an optical flat plate that does not change the optical magnification and only affects the optical path in the optical path.
It can be used to guide light into optical systems and isolate dust and water vapor, thereby protecting the internal components of the instrument. As a protective and sealing window for instruments or components, the light window is required to not affect the image quality and accuracy of the system.
Therefore, sometimes it is necessary to have high requirements for transmitted wavefront distortion, high transmittance, and high parallelism.
Product Description
Shanghai Optec can provide standard precision and high-precision window slices of various materials according to customers' customized needs, including ZnSe, Ge, Si, CaF2 window slices applied in infrared band...
Product Parameters
| Standard accuracy | High precision | |
| Material | BK7, K9, quartz, sapphire, silicon, germanium, zinc selenide, calcium fluoride, magnesium fluoride, zinc sulfide, lithium fluoride, barium fluoride, etc | |
| Flatness | λ/ 4 @ 632.8nm | λ/ 10 @ 632.8nm |
| Dimensional tolerance | ± 0.1 mm | ± 0.03 mm |
| Thickness tolerance | ± 0.2mm | ± 0.05mm |
| Effective aperture | ＞ 90% | ＞ 90% |
| Parallelism | <1 ' | <10 ″ |
| verticality | <10 ' | <10 ″ |
| Angular tolerance | <3 ' | <30 ″ |
| Smoothness | 40/20 | 20/10 |
| Chamfer | 0.1-0.5mm * 45 ° | 0.1-0.5mm * 45 ° |
| Coating | According to customer requirements | According to customer requirements |
