Flat Round Windows

  • Made of BK7 glass or UV grade fused silica
  • High transmittance, low wavefront distortion and low scatter
  • Durable and strong
  • 2 arcmin parallelism
  • Can be supplied with AR, HR or metallic coatings

The usage of flat windows allows optical radiation to pass from one environment to another, without mixing other components of these environments. Considerations in selecting windows may include transmission, scattering, wavefront distortion and resistance to certain environments. The ideal window allows an optical beam to pass from one medium to the next without changing the wavelength distribution of the beam, the transmitted wavefront or scatter any of the light out of the beam. We offer windows of three different materials, from which you may choose in accordance with the properties you need: BK7 and UV grade fused silica.

 

Windows can be supplied with a coating of your choice. If you would like to order a window with coating, please note the code of the window and the code of the coating in your request. For required coating please refer to the COATINGS section.

Delivery

Estimated delivery time: from 4 - 5 days

Material
Diameter
Thickness T

BK7

Code Material Diameter Thickness T Price Delivery Add to cart
210-0102E BK7 12.7 mm 2 mm 10 $ 4 - 5 days To cart
210-0102M BK7 12.5 mm 2 mm 10 $ Request To cart
210-0103E BK7 12.7 mm 3 mm 11 $ Request To cart
210-0103M BK7 12.5 mm 3 mm 11 $ Request To cart
210-0202E BK7 25.4 mm 2 mm 17 $ 4 - 5 days To cart
210-0202M BK7 25.0 mm 2 mm 17 $ Request To cart
210-0203E BK7 25.4 mm 3 mm 18 $ Request To cart
210-0203M BK7 25.0 mm 3 mm 18 $ Request To cart
210-0402E BK7 38.1 mm 2 mm 25 $ Request To cart
210-0402M BK7 40,0 mm 2 mm 25 $ 4 - 5 days To cart
210-0403E BK7 38.1 mm 3 mm 27 $ Request To cart
210-0403M BK7 40.0 mm 3 mm 27 $ 4 - 5 days To cart
210-0502E BK7 50.8 mm 2 mm 31 $ 4 - 5 days To cart
210-0502M BK7 50.0 mm 2 mm 31 $ Request To cart
210-0503E BK7 50.8 mm 3 mm 32 $ 4 - 5 days To cart
210-0503M BK7 50.0 mm 3 mm 32 $ 4 - 5 days To cart
210-0703E BK7 76.2 mm 6.3 mm 99 $ Request To cart
210-0703M BK7 75.0 mm 6.3 mm 99 $ Request To cart

UVFS

Code Material Diameter Thickness T Price Delivery Add to cart
210-1102E UVFS 12.7 mm 2 mm 20 $ Request To cart
210-1102M UVFS 12.5 mm 2 mm 20 $ Request To cart
210-1103E UVFS 12.7 mm 3 mm 21 $ Request To cart
210-1103M UVFS 12.5 mm 3 mm 21 $ Request To cart
210-1202E UVFS 25.4 mm 2 mm 28 $ Request To cart
210-1202M UVFS 25.0 mm 2 mm 28 $ Request To cart
210-1203E UVFS 25.4 mm 3 mm 29 $ 4 - 5 days To cart
210-1203M UVFS 25.0 mm 3 mm 29 $ 4 - 5 days To cart
210-1402E UVFS 38.1 mm 2 mm 44 $ 4 - 5 days To cart
210-1402M UVFS 40.0 mm 2 mm 44 $ 4 - 5 days To cart
210-1403E UVFS 38.1 mm 3 mm 45 $ Request To cart
210-1403M UVFS 40.0 mm 3 mm 45 $ 4 - 5 days To cart
210-1502E UVFS 50.8 mm 2 mm 53 $ Request To cart
210-1502M UVFS 50.0 mm 2 mm 53 $ Request To cart
210-1503E UVFS 50.8 mm 3 mm 54 $ 4 - 5 days To cart
210-1503M UVFS 50.0 mm 3 mm 54 $ 4 - 5 days To cart
210-1703E UVFS 76,2 mm 6.3 mm 165 $ Request To cart
210-1703M UVFS 75.0 mm 6.3 mm 165 $ 4 - 5 days To cart
Delicious

Material

BK7, UV FS

Surface quality

60-40 scratch & dig (MIL-PRF-13830B)

Clear aperture

>80% of the diameter

Diameter tolerance

+0.00/ -0.5 mm

Thickness tolerance

±0.2 mm

Flatness

1 λ per inch @ 633 nm

Parallelism

2 arcmin

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