Double convex cylindrical lenses
Double Convex Cylindrical Lenses, as indicated by the name, is a special cylindrical lenses with two convex surfaces. Usually the two convex surfaces do not have the same x and y axis thus it can be used to change the aspect ratio of the image.
Double convex cylindrical lenses are usually used in optical display systems, imaging systems, optical instruments, laser systems, etc..
Nova offers Double convex cylindrical lenses from various materials such as fused silica, BK7, optical glass, BaF2, CaF2, MgF2,LaF3, LiF ,Zns and ZnSe with circular or rectangular dimensions or other custom modules. Coating options include: uncoated, MgF2 single layer, V-type, broad band AR coating or customized.
Technical parameters of Double-convex cylindrical lenses
Material | Optical glass, Sapphire , fused silica,CaF2, MgF2, LaF3,LiF,Znse,Zns. |
Diamension range | 2mm-600mm |
Thickness range | 0.1mm-30mm |
Dimension tolerance | +/-0.01mm~ ±0.1mm |
Thickness tolerance | ±0.01mm~ ±0.1mm |
Flatness | ≤1/4λ,≤1/8λ, ≤1/10λ,@632.8 nm |
Parallelism | <30”~3' |
Surface quality | 5/10;20/10;40/20,60/40 |
Clear aperture | >90% |
Coating | AR/AF/IR/dielectric film/metal film/laser film |