Bk7 Window - China
price: contact company for price
BK7 window has good performance over visible and near infrared wavelength region, is ideal for applications require minimal transmitted beam deviation.
It is suitable for AR coating .
Specifications of BK7 Optical Windows:
Material: BK7 grade A optical glass
Bevel: <0.25mm X 45°
Coating: Optional (Uncoated, AR, HR, PR, Coating, etc.
)
Standard High Precision
Dimension Tolerance +0.0/-0.1 +0.0/-0.02
Thickness Tolerance ±0.1 ±0.005
Surface quality: 60-40 10-5
Clear Aperture >85% >95%
Flatness(per 25mm@633nm) λ /2 λ /10
Parallelism 3 min 3 sec
Company Contact:
- Posted By: Shandong Yanggu Constant Crystal Optics, Inc
- Phone: +86 635 2952 888
- Address: North-South 1st Road, Xiangguang Economic Development Zone, Yanggu, Liaocheng , Shandong , China
- Email:

- Website: https://www.sycco-optics.com/
Published date: April 21, 2026
- Business Description: Shandong Yanggu Constant Crystal Optics,Inc was established in April 2006, located in Xiangguang economic development zone, Yanggu County,Shandong Province.
We are specialized in researching, producing and saling optics and optical components.
Our main products include optical window,prism, lens, beamsplitter, filter, wedge, blanks and etc.
We also provide customized service according to customers requests.
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