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BK7 optical window glass block / BK-7 windows

Product description
 BK7 optical window glass block / BK-7 windows 
Optical Windows
 Optical windows are falt, plane parallel plates which are often used as protective barriers for electronic sensors or detectors from outside environments. When selecting windows, please consider materials, transmission, scattering, parallelism and resisitance to certain environment or mechanical properties of the substrate.

Shenyang Yibeite Optics Co., Ltd.offers standard and high precision optical windows in round,square, wedge shapes. We also support custom made optical windows in a variety of substrates, such as UV Fused silica, N-BK7, Germanium(Ge), Silicon(Si),Zinc Selenide(ZnSe). The high precision parallelism of 10 arc seconds, surface quality of 10/5 and flatness of λ/20.Single layer or multi-layer anti-reflection coatings are available.

 BK7 Windows

 

 

 General specifications

Diameter

0.2-300mm

Thickness

0.1-100mm

Dimension tolerance

+/-0.1mm or +/-0.02mm

Surface quality (scratch & dig)

60/40, 40/20 or better

Clear aperture

>85%, >90%

Surface accuracy

L/10 L/2 L

Parallelism

+/-3' ,+/-30''

Bevel

0.1~0.3mm x 45 degree

Coating

AR, BBAR or Custom

The wavelength of general optical windows' substrate( without coating)

No coating.jpg

Materials characteristics
ItemB270CaF2GeMgF2N-BK7SapphireSiUV Fused SillcaZnSeZnS
Refractive index(nd)1.5231.4341.0031.4131.5171.7683.4221.4582.4032.631
Coeffcient of dispersion(Vd)58.595.1N/A106.264.272.2N/A67.7N/AN/A
Density(g/cm3)2.553.185.333.182.463.972.332.205.275.27
TCE(μm/m℃)8.218.856.113.77.15.32.550.557.17.6
Soften Temperature(℃)53380093612555572000150010002501525
Knoop hardness(kg/mm2)542158.378041561022001150500120120
Optical windows finished products

Optical winows.jpg 

 

Company Information

YBT Optics is a professional manufacturer of precision optical components and optical lenses. Advanced processing equipment and complete production sysytem are effectively control production process and ensure product quality. If you want to get more information, please click: Shenyang Yibeite Optics Co., Ltd.

R&D.png

YBT Optics' products

Optical Windows

BK7 Windows

Fused silica Windows

Sapphire Windows

Silicon Windows

Germanium Windows

CaF2 Windows

BaF2 windows

ZnSe Windows

 

Related Products

Diffraction Gratings

Optical Lenses

Optical Prisms

Cylindrical Lenses

Optical Mirrors

Optical Filters 

  Contact Us

  TEL: 86-24-25335360

E-MAILinfo@ybtoptics.com

 WEBSITE: www.ybtoptics.com

ADDRESS: Xinghai Road 19-1, ETDZ, Shenyang, Liaoning, China, 110141

       VIEW DETAILS     

Packaging & Shipping
Packaging

Inner packing----special protective packing for optical products 

Outer packing----carton, Shock absorption material and bubble wrap

Keep cleaning, anti-static,shock treatment, YBT Optics will take different packagings according to quantity and shape

 

Shipping

Safely and fastly deliver goods to your hands, YBT generally recommend that you choose below types of shipping.Safely and fastly deliver goods to your hands, YBT generally recommend that you choose below types of shipping.Or we can help you to choose the cheapest shipping way in Alibaba. To most countries, generally 1-3 working days you will receive goods.

transport.png

 

FAQ

 

Q:Why to choose YBT? 

A .YBT is a factory manufactuer offers custom varied high quality optical products.

B.A compelet set of trade serves timely. 

C.Stable delivery,General produce time:7-20 days.

Q:How to pay?

USD to TT,paypal, Alipay,Moneygram, Western Union, Bank transfer, secured payment.

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