English
An optical window is a basic optical element that is usually used to separate the environment on both sides, such as separating the inside and outside of an instrument, to protect the internal device from the external environment.
The window is a parallel flat panel that does not change the magnification of the system. The substrate material includes various optical glasses, ultraviolet fused silica, infrared fused silica, and crystal materials such as CaF2, MgF2, ZnSe, Ge, Si, and various optical coatings such as anti-reflection film, high reflection film, spectroscopic film, and metal film. Widely used in optical systems, usually as a protective device between sophisticated electronic equipment and the environment
Protection function
Optical window pieces can protect optical systems or sensitive electronic devices from dust, moisture, pollutants, etc., in the external environment.
Transmission function
Selecting the right window piece can transmit the wavelength required for the application, thus achieving the best results. For example, in optical instruments, the window pieces need to ensure that specific wavelengths of light can pass through to achieve the functions of the optical system.
Isolation
The window can also be used as an isolation layer to isolate the optical system from the external environment to reduce interference from the external environment.
Materials | N-BK7, Fused silica, etc |
Dimensional Tolerance | ± 0.05mm |
Flatness | λ/4 @ 632.8nm |
Surface Quality | 20 ~ 10 |
Clear Aperture | 90% |
Parallelism | < 30 arc second |
Coating | AR Coating, Metal coating or Specified by customer |
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