Uses of Convex Lens and Its Application
A convex lens, also known as a converging or positive lens, is thicker at the centre and thinner at the edges. When light rays pass through a convex lens, they bend and meet at a single point called the focus. This property helps the lens converge light rays and form real or virtual images, depending on the position of the object. Convex lenses are used in many optical instruments and devices. They are an essential part of microscopes and cameras to focus light and form clear images. They are also used in magnifying glasses to enlarge small objects and in spectacles to correct farsightedness (hypermetropia).
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What is a Convex Lens ?
When the light passes through a lens and the emergent rays are converging in nature then that type of lens is known as converging lens or convex lens.
There are three types of convex lens
- Bi-convex or double convex lens
- Plano convex lens
- Concavo convex lens
In convex lens light rays get converged or come closer to each other as in the diagram above. Due to this property, convex lenses are used in different ways in different objects.
Application of convex lens/use of lens/what are the uses of lenses/state two uses of convex lens/uses of lenses in our daily life:
- Magnifying glass uses convex lenses .
- Eyeglasses use convex lenses.
- Camera uses a convex lens.
- Telescopes use convex lenses .
- Microscopes use convex lenses.
Convex Lens Used in Magnifying Glass
Magnifying glasses are most commonly used for seeing things larger. The light from the object comes through the convex lens of the magnifying glass .The light gets converged due to the convex lens and makes the image larger in our eyes.
Convex Lens Used in Eyeglasses
In hyperopia a human cannot be able to see things away from his sight. So, when the light rays come from an object and get through a lens then the image is formed in the retina and the farsightedness patient sees the object without any difficulty.
Convex Lens Used in Camera
Image of convex camera
Convex lens is used in cameras not just for its focusing quality but also for its magnifying quality. Camera uses both the lenses convex and concave . There are convex lenses followed by a concave lens then a convex lens in a camera.
Convex Lens Used in Telescopes
Convex lens used in Microscope:
There are two convex lenses in a microscope. The light rays from the object come through the objective lens then through the eyepiece .Due to double refraction the object becomes larger than the actual size of the object , So, the small objects also get magnified .
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Frequently Asked Questions (FAQs)
A convex lens that makes an object appear bigger than the actual is called a magnifying glass.
They are used in imaging applications.
Spectacles use both concave and convex lenses.
Convex lens
Convex lens
The other name of convex lens is converging lens.
The lens which converges the rays of light are known as convex lenses.
If the radius of curvature equals that type of convex lens is known as equi-convex lens.
Bi-convex lens , plano-convex lens and concave-convex lens are a few types of convex lens.
When light rays emerge from the convex lens the rays converge on the focus point.