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描述
RFQ

Negative meniscus lens

Product Info

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.


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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.



 

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.