A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.

The meaning of LENS is a piece of transparent material (such as glass) that has two opposite regular surfaces either both curved or one curved and the other plane and that is used either singly or combined in an optical instrument for forming an image by focusing rays of light.

Feb 23, 2025 · Lens, in optics, piece of glass or other transparent substance that is used to form an image of an object by focusing rays of light from the object. A lens is a piece of transparent material, usually circular in shape, with two polished surfaces, either or both of which is curved and may be either convex or concave.

Mar 27, 2025 · An easy-to-follow explanation of how lenses bend light, including the two main types of lenses: concave and convex.

Dec 5, 2019 · Whether it's the lens on your cell phone camera, the lenses on the eyeglasses or contact lenses you use to see clearly, magnifying glasses, microscopes, telescopes or something else entirely, the physics of lenses explains how a simple piece of glass can be used to magnify, minimize or bring images into focus for any purpose.

What is a Lens? A lens is an optical component made from a transparent material that has at least one curved surface. Its primary function is to refract (redirect) transmitted light rays, either converging them to a focus or diverging them to spread light out.

A lens is merely a carefully ground or molded piece of transparent material that refracts light rays in such as way as to form an image. Lenses can be thought of as a series of tiny refracting prisms, each of which refracts light to produce their own image. When these prisms act together, they produce a bright image focused at a point. Types of ...

Figure 1: Diagram of a lens. The following terms explain each of the characteristic parts of an imaging lens and relate these terms to fundamental properties of imaging systems found in the next section. Focus Adjustment Ring: Turning this changes the …

A lens is a transmissive optical device that focuses or disperses light beams using refraction. A simple lens consists of a single piece of transparent material, while compound lenses consist of several simple lenses arranged along with a common axis. A lens can focus light to form an image, unlike a prism, which refracts light without focusing.

LENS definition: 1. a curved piece of glass, plastic, or other transparent material, used in cameras, glasses, and…. Learn more.