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MSE supplies offers customized Meniscus Lenses with different materials, dimension, surface qualify, etc.
Meniscus Lenses have two curved surfaces: one concave surface and the other convex surface. There are two types of meniscus lenses: positive meniscus lenses and negative meniscus lenses. Positive meniscus lenses have a shorter radius of curvature on the convex surface than the concave surface and negative meniscus lenses have the opposite. Positive meniscus lenses are used to reduce the focal length and spherical aberration reduction while negative meniscus lenses are used to expand the beam. They are widely used in optical system such as cameras, telescopes, etc.
MSE Supplies can offer a variant of optical elements, with different material, size, surface quality and coating. Please contact us for customization or bulk orders.
Technical Data:
Parameters Value MaterialOptical Glass
Fused Silica
Silicon
Germanium
ZnSe
Sapphire
CaF2
MgF2
BaF2
0.5-500
+0/-0.01~+0/-0.1
Thickness Tolerance (mm)±0.01~±0.1
Focal Length Tolerance (%)
±1
Irregularity (P-V) @ 632.8nm
λ/10~λ/2@632.8
For more information, please visit Meniscus Lenses solution.
Surface Quality
10/5~60/40
Centration
<30&#;~3'
Clear Aperture (%)
>90
Bevel
Protective bevel as needed
Coating
Uncoated, AR, BBAR
Ecoptik (also known as BRD Optical) provides meniscus lens in both positive and negative focal lengths. On the aspect of shape, it can be divided into convex meniscus lens and concave meniscus lens. On the aspect of the effect, it can be divided into diverging and converging meniscus lens.
A positive meniscus lens consists of two curved surfaces with similar radii of curvature and has a positive focal length. Positive meniscus lens are typically used for related applications such as reducing the focal length of another lens, increasing the numerical aperture, etc.In order to reduce spherical aberration, the beam should be incident on the convex surface of the lens when re-expanding or condensing or diverging collimated light is used; when it is used for converging light collimation, the beam should be incident on the concave surface.
Positive meniscus lenses are primarily used to minimize spherical aberration. When used in combination with another lens, a positive meniscus lens can reduce the focal length and increase the numerical aperture of the system without introducing significant spherical aberration. When used to converge parallel light, the convex surface of the lens should be oriented towards the direction of light emission in order to minimize spherical aberration. Coated lenses are also widely used in the visible and near-infrared fields.
A negative meniscus lens consists of two curved surfaces with similar radii of curvature and has a negative focal length.
Usually used to reduce the focal length of another lens, increase the numerical aperture and other related applications.
When used for focused beam collimation, the beam is incident on a concave surface. Negative meniscus lenses are mainly used to minimize spherical aberration.
Contact us to discuss your requirements of high quality Optical Glass Domes solution. Our experienced sales team can help you identify the options that best suit your needs.