BBC

Convex and concave lenses

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

Closer Look 6N Lenses

We compare and contrast concave and convex lenses by drawing ray diagrams. In this Closer Look segment on Lenses, we compare and contrast concave and convex lenses by drawing ray diagrams and ...
Optics

Optical Glass Spherical Convex Concave Biconvex Meniscus Lens

A plano-convex lens is compose of a plane and convex surfaces, has a positive focal length.It is used for the changing between point light source and parallel beam.It is mean when the light through ...
IEEE

Surface tension-induced high aspect-ratio PDMS micropillars with concave and convex lens tips

Abstract: This paper reports a novel method for the fabrication of 3-dimensional (3D) Polydimethylsiloxane (PDMS) micropillars with concave and convex lens tips in a one-step molding process, using a ...
jagranjosh.com

GK Questions and Answers on Lenses and Mirrors

Mirror is a reflecting surface or a polished metal that forms images. It works on the principle of reflection of light. When a man stands in front of the mirror, light from all parts of the body is ...
BBC

Convex and concave lenses

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