Brand: XZOP

Model: BK7

Finish: 60/40 or 40/20

Standard: US military standard

Introduction: As a transparent protective window, the window allows light from one environment to enter another different environment. Different temperature, pressure, chemical composition or cleanliness will affect its light projection.

BK7 window is a name of German SHOTT. The corresponding domestic brand is Chengdu Guangming K9 glass. Their properties are basically the same. Its refractive index is 1.51680, acid resistance is 1, and K's hardness is 610, so many Most customers who are used for imaging and have requirements for light refraction choose BK7 as the window. But its transmittance is only 92%, so customers will require coating to achieve high transmittance and low refraction, so that all the light can pass through as much as possible.

After polishing, the BK7 window provided by Xinzhao has good finish, good parallelism and good surface shape.

Optical index:

400~1100nm@T>92%

The transmittance after coating double-sided AR can reach 98%

Application areas:

Used in biometrics, medical equipment, chemical testing equipment, photographic equipment, ccd cameras, optical instruments, spectral analysis instruments, lenses, etc.

Spectral curve: