Various Kinds Of Optical Lenses With Their Uses

Optical Lenses are optical devices that form real or virtual image of an object by converging or diverging the lights rays coming from it

. Optical Lenses are usually made up of transparent glass. There are several parameters for the classification of Lenses, the most fundamental being the number of optical elements a Lens has. Depending on the number of optical element, Lenses may be classified into two broad categories:

Simple Lenses

Compound Lenses

Simple Lenses have one optical element while the compound lenses have a combination of multiple simple lenses.

Types Of Simple Lenses:

Simple Lenses comprise of two optical surfaces. The radii of curvature of these two surfaces form the basis of classification of Simple Lenses. Simple Lenses can further be classified into:

Convex Lens

When both the surfaces of lens are convex, the lens is referred to as biconvex lens or simply convex lens.

Concave Lens

When both the surfaces of lens are concave, the lens is referred to as biconcave lens or simply concave lens.

Plano Convex Lens

When one surface of the Lens is convex and the other is plane, the lens is referred to as Plano Convex Lens.

Plano Concave Lens

When one surface of the Lens is concave and the other is plane, the lens is referred to as Plano Concave Lens.

Equi-convex Lens

When both surface of the lens are convex and have equal radii of curvature, the lens is referred to as Equi-convex Lens.

Convex Concave Lens

When one surface of the lens is convex and the other is concave, the lens is called Convex Concave Lens.

Compound Lenses

Spherical aberration and chromatic aberration are two disadvantages associated with Simple Lenses. To overcome these problems, Compound Lenses are used. These Lenses comprises of several of simple Lenses which are arranged in such a way so as to eliminate aberrations. There are several types of Compound Lenses that include Zoom Lenses, Telephoto Lenses, Wide Angle Lenses, etc.

There are several uses of Lenses. Lenses are used for the rectification of visual impairments. Lenses are used in optical instruments including microscope, telescope, cameras, binoculars, etc. Lenses are extensively used in scientific laboratories for research and educational purposes. Besides, there are various other applications.

Rac Exports is among the leading Optical Lenses Manufacturer and Suppliers. The company offers a wide array of Scientific Laboratory Optical & Research Instruments that include Optical Lenses, Plasticware, Laboratory Glassware, Laboratory Instruments, etc. For more details regarding the company and its offerings, one can log on to http://www.racexports.net/ .

by: Chaitanya Aggarwal

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