Meniscus Spherical Lens

Meniscus Lenses: The Positive Meniscus can increase the NA of the system while only adding slightly to the total spherical aberrations. The 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. The meniscus lens plays a divergent role in the optical path, and is commonly used in photographic system, objective lens system and laser measuring system.

We supply kinds of Plano-Convex Spherical Lens,Plano-Concave Spherical Lens,bi-convex Spherical Lens,bi-concave spherical lens,Meniscus Spherical Lens,special spherical lens,achromatic spherical lens,ball lens,sphere lens etc.

Specification of our optical meniscus spherical lens as follow:
*Material BK7,CaF2 crystal,MgF2,Ge,BaF2 lens,ZnSe or other optical materials 
*Dimension Tolerance +0.0 - -0.1mm 
*Center Thickness +/-0.1mm 
*Focal Length Tolerance+/-1%
*Surface Quality:60/40 
*Surface Figure:lambda/2 at 633nm on plano side 
*Clear Aperture >90%
*Chamfer 0.25mm at 45 degree typical 
*Coating Optional