A convex reflector.
Your question needs more information. Convex means a surface curves out, while concave means the surface curves in.
Most all corrective lenses are convex. Anything round, or even just "roundish" has a convex shape. From bowling balls to chickens' eggs, they are all convex, or "rounded outward" in shape.
Convex
A convex shape.
A convex lens curves outward, forming an elliptical shape.
A convex shape curves outward like a bowl, while a concave shape curves inward like a cave. Convex shapes do not make things upside down.
convex
outward
A surface that curves outward is called a convex surface. It bulges or protrudes outward towards the exterior.
A concave mirror curves inward in the middle, while a convex mirror curves outward in the middle.
A convex reflector.
The opposite of concave is convex. A concave surface curves inward, while a convex surface curves outward.
A concave slope curves inward or has a depression in the middle, resembling a bowl shape. In contrast, a convex slope curves outward, forming a mound or hill shape. Both types of slopes can be found in various natural landscapes.
A "concave" mirror curves inward. A "convex" mirror curves outward.
Such a mirror is concave.
convex