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Page 2 - BK7 Meniscus

Positive Meniscus Convex-­Concave Lens
BoJen Optics, Inc.
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Positive Meniscus Convex-­Concave Lens
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Positive meniscus (convex-concave) lenses, with center thickness bigger, are designed to minimize spherical aberration. When used in combination with another lens, a positive meniscus lens will shorten the focal length and increase the numerical aperture (NA) of the system without introducing significant spherical aberration. When ...

Specifications
Material: Ge, ZnSe, CaF2, UVFS, FS, BK7, H-K9L
Diameter: 3 mm
ROC1: -- mm
ROC2: -- mm
Available Focal Lengths: 100mm to 1000mm
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Negative  Meniscus Convex-­Concave Lens
BoJen Optics, Inc.
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Negative  Meniscus Convex-­Concave Lens
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Negative meniscus (convex-concave) lenses, with center thickness smaller, are designed to minimize spherical aberration in optical systems. When used in combination with another lens, a negative meniscus lens will increase the focal length and decrease the numerical aperture (NA) of the system. When used to diverge light, as shown in ...

Specifications
Material: Ge, ZnSe, CaF2, UVFS, FS, BK7, H-K9L
Diameter: 3 mm
ROC1: -- mm
ROC2: -- mm
Available Focal Lengths: -100mm to -1000mm
Data Sheet
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Meniscus Spherical Lens
Union Optic
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Meniscus Spherical Lens
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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
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BK7 Meniscus lens
Sinocera Photonics, Inc
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BK7 Meniscus lens
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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
Inquire Price