while a lens with a steeper convex surface will be positive. A meniscus lens with equal curvature on both sides would neither converge nor diverge light. Selecting the correct lens type and polarity ...

In a ray diagram, a concave lens is drawn as a vertical line with inward facing arrows to indicate the shape of the lens.

Meniscus lenses have one convex and one concave surface with each surface having its own radius or curvature. Applications include lasers and cameras. There are two types of meniscus lenses. Positive ...