Do you know what are the uses of concave lens? If not, you have arrived at the right place! Concave lenses are also called negative lenses or diverging lenses. These lenses are broadly used in everyday life. Today I will introduce the most common uses of concave lens in my guide. Many people often get confused between a concave lens and a convex lens. Do not worry, I have discussed some important factors that will help you to differentiate between them. Let us now learn some brilliant uses of concave lens in detail.
Uses Of Concave Lens
In my article, I have picked the top 7 common uses of concave lens in our daily life.
- In Glasses
- In Lasers
- In Cameras
- In Flashlights
- In Peepholes
- In Binoculars And Telescope
- In Mirrors
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Top 7 Uses Of Concave Lens
Now it’s time to talk about the uses of concave lenses in detail.
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Uses Of Concave Lens In Glasses
One of the most popular uses of concave lens is used to correct myopia which is also called near-sightedness. In this case, a nearsighted eyeball is too long, and the image of a far-away object falls short of the retina. Many opticians use a concave lens to correct nearsightedness. Concave lenses are used in glasses to correct this shortfall by spreading out the light before it reaches your eye. Thus, a concave lens used in glasses enables you to see distant objects more clearly.
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Uses Of Concave Lens In Lasers
We know that various types of medical equipment, scanners, DVDs, and CD players use laser beams. As these laser beams are highly focused, they get dispersed so that the equipment works properly. The concave lens in lasers can widen a laser beam to sharply access a specific area.
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Uses Of Concave Lens In Cameras
You must be surprised to know that there are many uses of concave lens found in manufacturing cameras. Generally, they use combinations of a concave and convex lens. This combination helps to improve the quality of photographs. When only the convex lens is used as a primary lens of a camera, it causes distortions. By combining both concave and convex lenses eliminate unwanted distortions.
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Uses of Concave Lens In Flashlights
You may find many uses of concave lens in our everyday objects. These lenses are mostly used in flashlights to magnify the light produced by the bulb. When the light falls on the concave side of the lens, the rays diverge on the other side. This helps in increasing the apparent radius of the light source by providing a wider beam.
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Uses Of Concave Lens In Peepholes
Small security devices such as peepholes provide a panoramic view of outside objects. This view is created by using one or more concave lenses inside this device. This helps to minimize the proportions of specific objects by giving a wider overview of an entire area. Thus, uses of concave lens play a vital role in terms of safety too!
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Uses Of Concave Lens In Binoculars And Telescope
The concave lens is widely used in binocular and telescopes. Earlier both of them use a convex lens to magnify the objects and make them appear closer. But a convex lens creates a lot of distortions and blur images. In this case, manufacturers installed a concave lens in this equipment. A concave lens helps you to focus on the images more clearly for the viewer.
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Uses Of Concave Lens In Mirrors
Concave lenses are used in objects such as shaving mirrors and reflectors in vehicles. Sometimes, huge concave mirrors are used to focus sunlight to produce heat in solar furnaces. Even dentists use concave mirrors to view the back of the tooth. Many ENT doctors use them for examining the internal parts of the ear, nose, and throat.
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Difference Between Concave And Convex Lens
Let us check out the difference between concave and convex lens.
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FAQ
What Is The Difference Between Convex And Convex?
Answer: Concave mirrors are converging mirrors, whereas convex mirrors are diverging.
What Is The Difference Between Concave And Convex Class 7?
Basically, the reflecting surface of the convex mirror bulges outside while the concave mirror bulges inwards. The major difference is the image that forms in these two mirrors. In other words, diminished images form in convex mirrors while enlarged images form in concave mirrors.
What Is Concave Lens Class 7?
A concave lens is a lens that diverges a straight light beam from the source to a diminished, upright, virtual image. It can form both real and virtual images. Concave lenses have at least one surface curved inside.
What Is A Convex Lens Class 7?
Definition of Convex Lens. This type of lens is thicker at the centre and thinner at the edges. An optical lens is generally made up of two spherical surfaces. If those surfaces are bent outwards, the lens is called a biconvex lens or simply a convex lens.
Where Are Concave Lenses Used?
A concave lens is used to diverge incident rays. This helps to create a virtual image on the opposite side of the refracting surface. Hence, these lenses are used in binoculars, telescopes, cameras, flashlights and eyeglasses.
What Is The Difference Between Concave And Convex Lens Uses?
A concave lens is used for people suffering from myopia. A convex lens is used for people suffering from hypermetropia. A concave lens is used in objects like flashlights, cameras, and lasers. A convex lens is used in objects like magnifying glasses, microscopes, etc.
What Are The Two Uses Of Each Concave And Convex Mirror?
A convex lens is used as a magnifying glass. A concave mirror is used as a shaving mirror. A convex mirror is used as rear view mirror in vehicles. A concave lens is used for correcting myopia.
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Conclusion
You may find numerous examples and uses of concave lens in various applications. Usually, concave lenses are used to diverge the incident rays. This helps to create the virtual image on the opposite side of the refracting surface. Hence, these lenses are popularly used in binoculars, telescopes, cameras, flashlights, and eyeglasses. By using convex lenses, you will notice that the images are erect and upright, unlike the real images. People suffering from myopia can use concave lens glasses to clearly see the images of faraway objects. Thus, I have discussed all the possible uses of concave lens you must know.
What are concave and convex lenses?