K9 Plano concave spherical mirror

  • Plano concave spherical mirror, the reflecting surface is a part of the spherical surface, and the parallel incident light can converge to a point after being reflected by the spherical surface, with a positive focal length. The focal length of the plano concave spherical mirror is half of the radius of curvature of the spherical surface.
  • Borisun optics provides spherical mirrors without coating and with reflective film. The options of reflective film include ordinary protective aluminum coating, protective ultraviolet reflective aluminum coating, protective silver coating, protective gold coating or dielectric high reflection coating.
Technical parameters
Items Parameters
Material optical glass, H-K9L (N-BK7)
Radius of curvature ± 1mm - ± 50000mm ± 1%
Diameter 3mm-300mm ± 0.1mm
Center thickness tolerance ± 0.05mm (we can process to ± 0.01mm with high precision)
Center deviation 3′(we can process to 30 ″with high precision)
Surface accuracy λ/ 8 (high precision, we can process to 1 / 10λ)
Surface quality 60/40 (we can process to 10-5 with high precision)
Effective caliber ≥90%
Coating see table
spectral curve

In addition, We can customize the optical window according to customer requirements or drawings.

For details, please consult:

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