Optical windows refer to a piece of transparent optical material that allows light into an optical instrument. They are pieces of optical glasses with ground and polished faces that are relatively parallel. Optical windows are applied for protecting fragile optical components inside an equipment, they are adopted to isolate two physical environments while allowing light to pass.
K9/Bk7/ B270/ Sapphire windows are ideally suited for industrial applications. Available uncoated or with a MgF2 anti-reflection coating, windows are often used as a protective element between two environments.
Material | K9/Bk7/ B270/ Sapphire |
Design Wavelength | 632.8 nm |
Surface Figure | λ/2 |
Diameter Tolerance | +0.1, -0.1 mm |
Thickness Tolerance | ±0.2 mm |
Paraxial Focal Length | ±2% |
Centration | <3 arc minutes |
Clear Aperture | >85% |
Surface Quality | 60-40 scratch and dig |
Protective Bevel | 0.25 mm x 45° |
Other Items
Factory information
Changchun Yutai Optics Co.,Ltd. is a manufacturer with ISO9001 certification. We are specialized in high-performance optical components include lens, mirrors, filters, windows and prisms which are specified by customers. YutaI's items are widely used in imaging, defense, medical, laser and industry market.
As a fast-growing supplier in optics, Yutai Optics has quickly established itself as a leader in optical components with advanced technology and quality control ability as Yutai aims to provide professional service and good quality items to meet customers' request. Yutai has already established long-term cooperative relation with many powerful companies all over the world.
Our Advantage
Yutai Optics has a professional sales team with excellent service. Sells team provide full service from inquiry,production,inspection,delivery and after sale guarantee. "Customer first" is sells teams goal. So Yutai always try the best to meet each customer's request.
Yutai Optics processes precision optical components with many experienced engineers and advanced machines which are the important elements for the high quality items.Our advanced production machines list:Ring polishing machine,Single axis machine,Two axis machine,Four axis machine,Centering edging machine,Mechanical milling machine, Spectrograph Grinding machine,Nanotech.250upl,Talysurfi120.
Yutai Optics has a double-check inspection for optical components.The quality control department test every component carefully and provide testing report for each order. Our testing machine includes ZYGO,Stereo interferometer, Horizontal interferometer.

Process for most optics
Material-cutting-rounding-milling-grinding-polishing-edging-cleaning-coating-gluing-edging-blacking-accembly-packing-shipping
Packaging & Shipping
1 Package Detail: A. Standard carbon and envelop with plastic foam.
B. Safety green carton.
C. Customized.

2 Delivery Detail: Within 30 days.(Also depand on the quantity)

Payment:
2 Delivery Detail: Within 30 days.(Also depand on the quantity)