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How Does an optical windows Work?
optical windows Overview
Why Use optical windows ?
Manufacturing optical windows
optical windows from BO- GLASS Optics
An optical window is a transparent optical device used in optics to protect optical systems and electronic sensors from the external environment. Its main task is to help the optical system or some components we design to be protected from interference and influence from the external environment. This ensures that no dust or other particles enter the case during use. So as not to affect the normal use of the system.
The main materials used to make optical windows are N-BK7, fused quartz, sapphire, germanium, zinc selenide, calcium fluoride and magnesium fluoride. Each of them has its own characteristics.
| Material | Transmittance | Refractive Index(at 589 nm) | Abbe Number | Hardness(Mohs) |
|---|---|---|---|---|
| N-BK7 | High in 350-2000 nm range | 1.5168 | 64.17 | 6 |
| Fused Quartz | High in 180-2000 nm range | 1.4585 | 67.7 | 5.5-6.5 |
| Sapphire | High in 190-5500 nm range | 1.762-1.778 | N/A | 9 |
| Germanium | High in 2-14 μm range | 4.003 | N/A | 6.5 |
| Zinc Selenide | High in 600-16000 nm range | 2.403 | N/A | 2.5 |
| Calcium Fluoride | High in 130-7800 nm range | 1.434 | 95.1 | 4 |
| Magnesium Fluoride | High in 110-7500 nm range | 1.377 | 106.2 | 6 |
Our optical windows are used around the world. . All of our optical windows can be supplied custom made to your specifications, dimensions and specific design. Our state-of-the-art facility is capable of manufacturing large optical windows and micro windows for nanoscale optical components. There are a variety of optical materials to choose from, and I have full confidence that our design team will be able to meet your specific specifications when talking to you.
An optical window is a transparent optical device used to protect optical systems and electronic sensors from the external environment. This ensures that no dust and other particles enter the housing during use. So as not to affect the normal use of the system.
Visible light refers to the range of wavelengths that our human eyes can see. The optical window of visible light refers to the wavelength range from ultraviolet 300 nanometers to infrared 1100 nanometers.
The infrared window starts from the shortwave window and extends from visible light to 2.5um to the longwave infrared window of 8-14um.
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