The outward curving of the lens is said to be a convex lens.
A lens that is thinner in the middle and thicker at the edges is called a concave lens.
There is none
Place a small amount of lens-cleaning fluid on a clean sheet of lens paper. Make one small circular pass on the lens and toss out. If lens is still dirty - repeat.
ocular lens
It is lens. The lens consists of the lens capsule, the lens epithelium, and the lens fibres.
The ocular is the upper lens and objective is the lower lens
)( is a concave lens() is a convex lens
The objective lens
if you are using A+ it is lens
Converging lens is a convex lens.
A crystalline lens is the lens in the human eye.
This depends on the type of lens. If it is a convex lens then they converge at the focus on the other side of the lens. If it is a concave lens, then they diverge and appear to be coming from the focus present on the same side of the lens as the incident ray.
Double-convex lens
= A lens cap is a cover to a lens on a camera or camcorder.=
The upper lens is called the ocular lens or the eyepiece.
The Shutter.