Types of Lenses Prisms | Convex Lenses | Concave Lenses Prisms How a prism bends light Obtained from www.howstuffworks.com Thesimplest kind of lens is actually a prism. A prism is a piece of glassshaped like a triangle and bends light towards its thickest part (thebottom of the “triangle”), which is called the base. The thinnest partof a lens is called the apex. Notall lenses are prisms, but any lens can be thought as two roundedprisms joined together. The same rules would apply, so all lenses bendlight towards their base. Convex Lenses The kinds of convex lenses* Convexlenses are known as many names, being also called positive lenses, pluslenses, converging lenses, and condensers. Convex lenses are fat in themiddle and skinny on the edges. There are three main types of convexlenses: plano-convex lenses, double-convex lenses, and concavo-convexlenses. Concavo-convex lenses have another name—positive meniscus. How a convex lens bends light Obtained from www.hows...