BK7 and N-BK7( a RoHS-compliant form of BK7) are high quality optical glass commonly used for windows, lenses, and prisms where transmission in the range 0.4µm to 1.4µm is desired. It is used for thermally non-critical applications. It has excellent mechanical and optical properties.
Note for BK7 (N-BK7)windows:
1.Custom-made BK7(N-BK7) windows at any size from 1.0mm to 300mm clear aperture are available. Besides, round,BK7(N-BK7) windows at shape of quadrate ,triangular or other polygonal are available
2. Thickness from 0.5mm to 50.0 mm is available upon request.
3. Better bevel is available upon request.
Standard Bk7 Windows
