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Home > Products > Laser Component > Optical Element > BK7 (K9) Optical Windows
BK7 (K9)  Optical Windows
  • BK7 (K9)  Optical Windows

BK7 (K9) Optical Windows

    Payment Type: T/T
    Incoterm: FOB,CFR,CIF,FCA,CPT
    Min. Order: 1 Bag/Bags
    Delivery Time: 30 Days
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Basic Info

Material: BK7 Glass Or Fused Silica

Flatness: 2λ Per 25 Mm

Surface Quality: 80/50 Scratch/Dig

Parallelism: 3 Min

Dimension Tolerance: +/-0.2mm

Coating: Vacuum-deposited Metallic Alloy

Optical Density Tolerance: +/-5%

Bevel (face Width X 45°): < 0.25mm

Additional Info

Packaging: Carton packaging

Productivity: 1000PCS per year


Transportation: Air

Place of Origin: China

HS Code: 9001909090

Port: Ji Nan,Qing Dao,Shang Hai

Product Description

BK7 Optical Windows are one of the most common glass. It has a transmission range of 380nm ~ 2100nm. Optical Windows BK7( K9 ) has high homogeneity, no bubbles and low impurities, which can be used directly as transmission optical materials. BK7 has high hardness and good scratch resistance. However, the thermal expansion coefficient is large and is not recommended for temperature sensitive applications.

K9 Optical Windows has been used since long ago. It's a kind of optical windows which includes high precision and low precision. Although there are different types of BSC7 or BSL7 due to different manufacturers, they are basically the same because of the composition, optical properties, physical properties and chemical properties. In addition to a lens or a prism, it is also used in most Optical Elements, such as a mirror or a spectroscopic substrate or a variety of coated Optical Filters substrate. When selecting windows you should consider materials, transmission, scattering, wavefront distortion, parallelism and resistance to certain environment. Coupletech offers a wide range of different materials are available upon requirement. BK7 materials can be also used in Optical Lenses or Optical prisms.


Looking for ideal BK7 Optical Windows Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the K9 Optical Windows are quality guaranteed. We are China Origin Factory of Optical Windows BK7 K9. If you have any question, please feel free to contact us.

Product Categories : Laser Component > Optical Element

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