Precision Grade Windows

Precision Grade Windows

CLZ Optical Co., Ltd. offers a wide range of off-the-shelf optical windows, and customers can also customize optical windows to meet their specific needs.We offer a range of optical windows in selected materials for all scientific instrumentation applications in the UV-Vis and NIR wavelengths. We offer different grades depending on the application.


For over 10 years, our optical windows have been trusted by industries such as aerospace, military and commercial avionics, scientific and medical instrumentation, academic research and industrial applications.


With over a decade of experience, CLZ Optical Co., Ltd. has earned the confidence of customers in industries such as aerospace, military and commercial avionics, scientific and medical instrumentation, academic research, and industrial manufacturing. Our optical windows are known for their outstanding optical clarity, durability, and reliable performance in critical environments. Whether you need standard-sized windows for rapid delivery or bespoke designs for specialized systems, we are committed to providing high-quality products and professional support to help your projects succeed.


Please contact our sales team.

For a quote on your custom requirements please send us your drawing or specification.

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Please contact us for discount pricing for stock parts over 10+ and volume/OEM quantities

Type No. Data sheet MaterialsDiameter (mm)Thickness (mm)CoatingFlatness (P-V)

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Diameter (mm)

0 200

Thickness (mm)

1 15

Materials

BK7 or equivalent
UV Fused Silica
Sapphire

Coating

Uncoated
MgF2 AT 550nm
BBAR Ravg<0.35% AT 420-680nm
BBAR Ravg<0.8% AT 400-900nm
BBAR Ravg<0.5% AT 630-1100nm
BBAR Ravg<0.5% AT 750-1500nm

Flatness (P-V)

λ/4