The best lens from where one conjugates is relatively for from the lens or where both conjugates are the same size of the lens.
The edge thickness of negative meniscus lens is bigger than center thickness.
Specifications
Material: | N-BK7, Fused silica |
Diameter: | +0/-0.2mm |
Clear aperture: | > 90% of diameter |
Thickness: | +/-0.1mm |
Radius: | +/-0.1% |
Centration: | < 3 arc minutes |
Surface quality: | 60-40 scratch and dig |
Power: | 3 fringes |
Irregularity: | 0.5 fringe |
Coating: | with or without AR coating |
Bevel: | Protective bevel |
* Specifications are subject to the dimensions and material used. Other materials such as Ge, Si, ZnSe, ZnS, CaF2, MgF2… are available upon request.
The best lens from where one conjugates is relatively for from the lens or where both conjugates are the same size of the lens.
The edge thickness of negative meniscus lens is bigger than center thickness.
![](\"/userimg/10751/Negative-meniscus-lens1.jpg\"/)
Specifications
Material: | N-BK7, Fused silica |
Diameter: | +0/-0.2mm |
Clear aperture: | > 90% of diameter |
Thickness: | +/-0.1mm |
Radius: | +/-0.1% |
Centration: | < 3 arc minutes |
Surface quality: | 60-40 scratch and dig |
Power: | 3 fringes |
Irregularity: | 0.5 fringe |
Coating: | with or without AR coating |
Bevel: | Protective bevel |
* Specifications are subject to the dimensions and material used. Other materials such as CaF2, Si, Ge, ZnSe… are available upon request.
