Meniscus Lenses
Material:
N-BK7, UV grade fused silica, CaF₂ etc
Surface Flatness:
N＜3, △N＜λ/4
Coating:
Uncoated,
Single Layer MgF₂,
AR/AR@250-400nm, Ravg<0.5%
AR/AR@400-700nm, Ravg<0.5%
AR/AR@650-1050nm, Ravg<0.5%
AR/AR@1000-1650nm, Ravg<0.5%
Surface Quality:
60/40~10/5
Clear Aperture:
>90%
Convex-concave (meniscus) lenses can be either positive or negative, depending on the relative curvatures of the two surfaces. A negative meniscus lens has a steeper concave surface and is thinner at the centre than at the edge. Conversely, a positive meniscus lens has a steeper convex surface and is thicker at the centre than at the edge.
| wdt_ID | Attributes | Values |
|---|
Positive Lens
wdt_ID Part No. Material f (mm) dia (mm) R1 (mm) t c (mm) t e (mm)
| wdt_ID | Part No. | Material | f (mm) | dia (mm) | R1 (mm) | t c (mm) | t e (mm) |
|---|
Negative lens
wdt_ID Part No. Material f (mm) dia (mm) R1 (mm) t c (mm) t e (mm)
| wdt_ID | Part No. | Material | f (mm) | dia (mm) | R1 (mm) | t c (mm) | t e (mm) |
|---|
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Plano-Convex Lenses
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