Custom Meniscus Lens

Custom Meniscus Lens Meniscus Lens has two spherical curved surfaces, one outwardly curved and other inwardly curved. Meniscus lens can be either positive or negative, Positive Meniscus Lenses' thicker at the center than at the edges and Negative Meniscus Lenses' thinner at the center than at the edges. When used in combination with another lens, meniscus lens will decrease or increase the focal length, and increase or decrease the numerical aperture (NA) of the system