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Page 2 - Meniscus

Dimension Tolerance +0/-0.2mm Thickness Tolerance ±0.2mm Design Wavelength 546.1nm Surface Quality 60/40 scratch and dig Flatness λ/4@632.8nm Centration <3 arc minutes Focal Length Tolerance ±2% Clear Aperture >90% Chamfer Protective <0.5mmx45deg

Specifications

Material: UVFS, FS, BK7, H-K9L
Diameter: 25.4 mm
ROC1: 20.58 mm
ROC2: 90 mm
Data Sheet
The Positive Meniscus Lens can increase the NA of the system while only adding slightly to the total spherical aberrations. Meniscus lenses as two curves of the lens lies on the same direction.

Specifications

Material: Ge
Diameter: 25.45 mm
ROC1: 33.72 mm
ROC2: 90.0 mm
Surface Quality: 40-20 scratch and dig
Data Sheet
The diameter 30mm, Thickness: 2mm, Height: 15mm Material: H-K9LOutside Diameter (mm) 30Inside Diameter (mm) 26Diameter Tolerance (mm) ±0.2Clear Aperture CA (mm) 180°Outside Radius (mm) 15±0.1Inside Radius (mm) 13±0.1Height (mm) 15Wall Thickness (mm) 2.0Thickness irregularity ...

Specifications

Material: H-K9L
Diameter: 30 mm
ROC1: 15 mm
ROC2: 12 mm
Lenses are classified by the curvature of the two optical surfaces. A lens is biconvex (or double convex, or just convex) if both surfaces are convex.  If both surfaces have the same radius of curvature, the lens is equiconvex. A lens with two concave surfaces is biconcave (or ...

Specifications

Material: UVFS, FS, H-K9L
Diameter: - mm
ROC1: - mm
ROC2: - mm
Diameter Range: Custom
...
Data Sheet
Lenses are classified by the curvature of the two optical surfaces. A lens is biconvex (or double convex, or just convex) if both surfaces are convex.  If both surfaces have the same radius of curvature, the lens is equiconvex. A lens with two concave surfaces is biconcave (or ...

Specifications

Material: BK7
Diameter: - mm
ROC1: - mm
ROC2: - mm
Diameter Range: Custom
...
Data Sheet