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Gholographics Company

Spherical Lens

A lens is an optical device with perfect or approximate axial symmetry which transmits and refracts light, converging or diverging the beam. A simple lens consists of a single optical element. Lenses are typically made of glass or transparent plastic.



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 just concave). If one of the surfaces is flat, the lens is plano-convex or plano-concave depending on the curvature of the other surface. A lens with one convex and one concave side is convex-concave or meniscus. It is this type of lens that is most commonly used in corrective lenses.





Part Number
Dia (inch)
EFL (inch)

ZN0720

0.75"
2.0"

ZN0725

0.75"
2.5"

ZN1015

1.0"
1.5"

ZN1020

1.0"
2.0"

ZN1025

1.0"
2.5"

ZN1030

1.0"
3.0"

ZN1525

1.5"
2.5"

ZN1530

1.5"
3.0"

ZN1550

1.5"
5.0"

ZN20100

2.0"
10.0"

Custom made is available upon request.