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Optical Bk7 Small Bi-Convex Aspherical Lens
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Product DescriptionWe supply kinds of aspherical lens,detailed as per the customer's drawing.
Aspherical Lenses have a negative focal length and is typically used to cause a collimated beam to diverge as in a Galilean type beam expander or Telescope. Because the spherical aberration of the Plano-Concave is negative, it can be used to balance the aberration of other lenses.
Bi-Convex Lenses is most suitable where the object and image are on opposite sides of the lens and the ratio of the image and object (conjugate ratio) distances is between 0.2 to 5.
Specification of our sphere lens as follow:
Material | BK7,fused silica,MgF2,BaF2,CaF2,ZnSe,ZnS,Ge or other optical crystals, optical glass materials | ||
Dimension Tolerance | +0.0 -- -0.1mm | ||
Surface Quality | 20/10 | ||
Surface Figure | lambda/2 at 633nm on plano side | ||
Chamfer | 0.25mm at 45 degree typical | ||
Coating | Optional | ||
Packing-Packaging the lenses separately inside and make sure all the lenses safety during transport.
Delivery- We could choose International Express such as FedEx, DHL, TNT, UPS etc, to make sure the shipments are safe and fast.
China star optics Technology Co.,Ltd.is a first-class technical company,which specialized in providing optical products,base in the famous optical base in ChangChun City,JiLin Province.We focus on the research and development of optical components,as well as manufacturing and selling them with low price.The products used in industrial,medical,scientific and other fields.
China star optics has a strong technical force,brings together outstanding optical design and processing specialists,owns advanced processing equipment and coating equipment,advanced detection equipment.Our company offers you a very wide range of optical lenses,including spherical lens,cylindrical lens,aspherical lens,windows,prisms,crystal,mirrors and high precision optical samples etc.In addition,we specilize in customizing photographic lens and accessories,such as wide angle lens,telephoto lens,projector lens,fisheye lens etc.We would also like to do OEM for you according to your request.
As the operating principle of "honest and trustworthy, mutual benefit and win-win",slogan of "Quality First, Customers First",China star optics dedicate to provide customers high-quality products and service,and sincerely hope that we could build long-term friendly business relationship with the merchants all over the world.