Borosilicate Glass Optical Spherical Singlet Lenses

Yutai's N-BK7(H-K9L) plano-convex lenses are available uncoated or with a variety of antireflection coatings. Standard lenses feature a 40-20 scratch and dig surface quality, and economy versions are available with a 60-40 scratch and dig surface quality for less demanding applications. N-BK7 is an excellent lens material for most visible and NIR applications. N-BK7 provides great performance at a good value with its high homogeneity, low bubble and inclusion content, and straightforward manufacturability.Mostly Yutai's customers choose N-BK7 singlet lenses.

Material	borosilicate glass
Diameter	1.5-450mm
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
Coating	Specified by customers

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Factory information

Yutai Optics, we specialize in the design and volume manufacturing of high performance optical components such as lens,prisms, windows,filters,mirrors and more for use in optical instruments and laser systems, as well as for telecommunications,medical, environment monitoring industry,material is widely ranged from optical glass to IR and UV glass.
    As a Fast-growing supplier in Optics, Yutai Optics offers excellent service and good quality items,our products have been appreciated by many European and American customers,of course we build a long-term cooperation.YuTai Optics has quickly established itself as a leader in optical components from its advanced technology and quality control.

Our Advantage

Sales Team
Yutai Optics has a professinal sales team with excellent service, we tracking from inquiry to delivery of items.We try our best to meet each customers'request.             

Production Team
Yutai Optics has many experienced engineers and advanced machines, they are the important guarantee for the higher quality products.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.
                                                                                     
Inspection Team
Advanced testing equipment and methods are important guarantee for the production of high-precision products.Our testing machine is ZYGO, Stereo interferometer,Horizontal interferometer.We provide testing report for each batch for your items.

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