A lens is a combination of two prisms, sometimes base up or base down. It is a transparent optical medium that converges or diverges a light beam by working on the principle of refraction. The lens is simple or compound (a combination of many simple lenses).

Convexmirror

Mirrors are usually manufactured by either polishing a naturally reflective material, such as speculum metal or by applying a reflective coating to a suitable polished substrate. Two types of coating are widely in use, silvering and dielectric coating. Mirrors are commonly used for personal grooming, rearview mirror, one-way mirrors and windows, signaling, projectors, solar power, telescope, sculpture, decors, etc.

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Lenses are commonly in use in a magnifying glass, as spectacle correction for refractive error, projectors, camera, to generate solar energy, radio astronomy, etc.

Please be aware that the window dimensions have a tolerance of ± 3 mm for both width and length. Additionally, minor edge chips may be present, not exceeding 3 mm in size.

Mirrors can be classified in many ways; including by shape, support and reflective materials, manufacturing methods, and intended application.

The mirror is the piece of glass that is polished on one side and reflects light falling on it. The more polished, or shiny, the more light will “bounce off” it’s surface. One of the surfaces is typically coated with a metal amalgam, which reflects a clear image. In a mirror narrow beam of light that incides on its surface bounces in a single direction, without scattering.

which type ofmirrorhas a flat surface?

1) Plane surface mirror- When parallel beams of light are reflected on a plane surface, the reflected rays will be parallel too.

Which statement is the best interpretation of the ray diagram shown

However, it is important to emphasize that these laser windows should not be relied upon as the sole means of eye protection against direct or indirect exposure to laser beams. They serve as an additional safety measure for diffusely scattered light. It is crucial to implement other precautionary measures, receive proper training, and adhere to established safe practices when working with lasers.

The difference between mirror and lens lies in how light reflects when falls over their surface. When light interacts with any surface, mainly two things happen; Reflection and Refraction. The main difference between mirror and lens is that image forms by reflection, as the light falls on a mirror. In lens, the image is formed by refraction. Let us now understand more about the difference between mirror and lens by studying in detail.

Ans- Most telescopes work by using curved mirrors to gather and focus light from the night sky. As mirrors are lighter, and they are easier than lenses to make a smooth combination.

During the manufacture of lenses, slabs of glass are cut with a glass saw or slitting disk or the pieces may be heated to softness and rolled to a round shape. Then it is pressed in a mold to the desired size and any required curvature of the surfaces. The surfaces are then ground, or lapped, to the final form.

A mirror is a piece of glass or polished metal surface coated with a metal film that reflects light without diffusion and produces an image of an object when placed in front of it. It forms a specular reflection. A plane mirror gives a real-looking undistorted image, while a curved mirror may distort, magnify, or reduce the image in various ways.

Convexlens

Lens mirror and prism definitionphysics

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The Blue Laser Windows can reduce the risk of light entering the eyes from diffusely reflected laser radiation. With an optical density (OD) rating of 6+ in the 190 nm to 540 nm range, they provide reliable protection. These windows are CE Rated and offer a 50% Visible Light Transmission.

It is a piece of glass or other transparent material with curved sides for concentrating or dispersing light rays. It has two opposite surfaces either both curved or one curved and one plane. The curves are almost always spherical. A lens forms images of objects situated in front of it.

These laser windows can help reduce the probability of light entering the user’s eye from a diffusely backscattered laser light. This product is rated at OD 6+ over the range of 190 to 540 nm, blocking deep ultraviolet to green including violet and blue light.

” Different speed of light in the lens than in the surrounding air, causes refraction, i.e, an abrupt bending, of a light beam. It occurs both where the beam enters the lens and where it comes out from the lens into the air.”

Lens mirror and prism definitionpdf

Ans- Concave lenses cause light to spread out, resulting in a smaller image for the viewer. Concave lenses use includes eyeglasses and contacts, flashlights, peepholes, binoculars, telescopes, and in photography.

Lenses are classified according to their two surfaces as biconvex, plano-convex, concavo-convex (converging meniscus), biconcave, Plano concave, and convexo-concave (diverging meniscus).

2) If the reflecting surface is concave, the reflected beams will be convergent, at least to some extent, and for some distance from the surface.