3" Diameter Uncoated Schott N-BK7 Optical Protective Windows

Product Description

3" Diameter Uncoated Schott N-BK7 Optical Protective Windows
Windows
CPG manufactures high precision windows for demanding applications in the infrared. These windows are fabricated from a variety of materials including fused silica, Si, Ge, ZnSe, ZnS, CaF2, MgF2, Cleartran and AMTIR. Utilizing advanced fabrication and coating techniques, CPG delivers windows with tightly controlled transmitted wavefront, a high degree parallelism, minimal scatter, high laser damage resistance and outstanding durability for the most challenging environments.
Specifications

Items	Description
Window	Material:	Schott N-BK7
	Diameter:	76.2+/-0.1mm
	Thickness:	1.0+/-0.1mm
	ROC1:	Infinity
	ROC2:	Infinity
	Flatness:	S1&S2:TWD<1/4L@632.8nm
	Surface quality:	S1&S2:S-D 60-40
	Parallelism:	<30arcsec
	Clear Aperture:	>90%
	Chamfer:	Protected
	Coating:	Uncoated
	Standard:	MIL-PRF-13830B

Interferograms with Zygo Inspection Other Windows CPG handle Why CPG
COST, PRECISION, G+ SERVICE
CPG optics has over 20 years experiences in optics industry, we provide a variety of different material fabricating and coatings, and we always aim to be a trustful supplier for all the customers.
Our in-house optical metrology capability ensures the all the requirements for the parts are within the specs:
Zygo Interferometer Wyko Cylinder Interferometer Agilent Cary 7000 Spectrometer Optical Bench Moller-wedel Goniometer Taylor Hobson Profiler Mitutoyo Projector Zygo Roughness Meter CMM Stress Measuring Satisloh Spherometer Trioptics Centering CPG is also an ISO: 9001&14001 certified manufacture, we deliver fast and provide best cost performance ratio for our customers.
Certificates
Packaging& Shipping

Package detail:
Optics are packed with Capacitor paper, white paper, custom-made plastic containers etc
Customized safety green carton
Shipping term:

FAQ:
1. Are you a manufacturer or trader? Can I visit your factory or office?
We are a manufacturer. We have factories in Jiangsu and Zhejiang provinces.
In order to provide better and in-time services, we set up branches in US, Germany and Netherlands.
You are welcome to visit our factories and offices at any time.
2. What's your payment term?
T/T, D/P, Letter of Credit, Western Union etc.
3. What's your minimum order quantity for this item?
1 unit.
4. Could I get free samples before making an order?
Your samples fee will be refunded when you place volume order.
5. Can I get a catalog?
Of course, please contact our salesman to get a catalog.
6. What's the lead time?
15-30 days, it is up to your quantity and specification and our stock.
If in stocks, once you make the payment, your products will be sent within 2 days.
7. What's your price list and discount?
The above price is our reference price, if you would like to know more our exact and discount policy, please email us or call us directly.
8. Can you OEM or ODM?
Yes, we accept all OEM and ODM.
9. Do you give a warranty of your products?
Yes, if there is a quality problem, please kindly provide the pictures to show the problem by email.
We will rework or provide the replacements to you at our cost according to actual conditions.

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