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PRODUCTS » Lens » Meniscus Lens

Meniscus lenses have one surface concave and one convex. With suitable radii of curvature they can have an overall positive effect that is they will form a real image of a distant object.

Meniscus lenses can be very useful when used in conjunction with an achromatic doublet to create a lens pair with a shorter focal length than one lens can achieve.

Positive meniscus lenses are designed to minimize spherical aberration. They have one convex and one concave surface. When used in combination with another lens, a positive meniscus lens will shorten the focal length and increase the NA of the system.

Negative meniscus lens is used to increase the focal length of another lens while maintaining the angular resolution of the optical assembly. This lens shape is best used when one conjugate is relatively far from the lens.

Like the positive meniscus lenses they can be used in conjunction with an achromatic doublet to increase the focal length.

This is the general standards we offer our customers, UNION OPTICS can supply other lenses meet your requirements, for detail information, please contact us.
  Meniscus Lens
    Meniscus Lens
Material:  BK7, Fused Silica
Dimension Tolerance:  +0/-0.1mm
Thickness Tolerance:  ±0.1mm
Surface Quality:  40/20 scratch and dig
Flatness:  λ/4@632.8nm
Centration:  <3 arc min
Focal Length Tolerance:  ±1%
Clear Aperture:  >90%
Bevel:  0.2mmX45deg
Coating:  As requested
Achromatic lens  Aspheric lens    
Note: Usually, the material we used is Chinese material unless assigned. If you can not confirm which material is the right one, please contact us.

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