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- Spectacles. Concave lenses are widely used in spectacles to correct near-sightedness or Myopia. People suffering from myopia can’t see far away objects clearly.
- Peepholes. The small lenses that are fixed on the walls or doors to view the person present outside are called Peepholes. A concave lens is used in making peepholes as they provide a wider view of the objects outside the door.
- Telescopes. Those telescopes that consist of the convex lenses only, sometimes create distorted and blurred images. To correct this abnormality, concave lenses are used in the telescopes along with convex lenses.
- Laser Devices. Concave lenses are also used in many optical devices such as printers, scanners, and some medical equipment that use a laser beam. Laser beams are of very high intensity and focused on a specific area that may cause disruption in the proper working of the optical devices.
Uses of Concave Lens. A lens is a transmissive optical device that disperses or focuses a light ray by means of refraction. Concave means hollowed inward or curving in; so, concave lenses are hollowed inward. A concave lens is also called as a negative lens or a diverging lens.
. In a ray diagram, a convex lens is drawn as a vertical line with outward facing arrows to indicate the shape of the lens. The distance from the lens to the principal focus is called the. focal...
Sep 9, 2023 · Concave lenses focus light inside the curve of the lens, while convex lenses focus light using the outer curve. A lens that curves like a “C” (no flat side) is both concave or convex, depending on which side of the lens you view from.
Apr 30, 2024 · Concave lenses are employed in telescopes to gather and focus light from distant celestial objects. These lenses help astronomers observe stars, planets, and galaxies with clarity. They collect light rays and converge them to form clear images. Concave lenses are often used as part of the objective lens in telescopes.
Learn about and revise lenses, images, magnification and absorption, refraction and transmission of light with GCSE Bitesize Physics.
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Figure 25.6.3 shows a concave lens and the effect it has on rays of light that enter it parallel to its axis (the path taken by ray 2 in the figure is the axis of the lens). The concave lens is a diverging lens, because it causes the light rays to bend away (diverge) from its axis.
