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Optical instruments

Optical instruments

A wide variety of optical instruments are in use today, ranging from microscopes to telescopes.

Technology

Keywords

optical instruments, magnifier, microscope, binoculars, telescope, lupe, optical microscope, riflescope, eyepiece, camera lens, converging lens, prism, enlarged image, lens, optics, invention, inventions, astronomy, physics, technology

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The Hubble Space Telescope orbits outside the distorting influence of Earth´s atmosphere.

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The Kepler space telescope was launched by NASA to discover Earth-like planets orbiting other stars

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This animation shows optical and radiotelescopes used in astronomical observation.

The reflection and refraction of light

A ray of light is reflected or refracted at the boundary of two mediums with different refractive indices.

Optical illusion

The information gathered by the eye is misinterpreted by the brain.

The human eye

The eye is one of our most important sense organs. When stimulated by light, electric impulses are produced by its receptors.

Vision correction

Concave and convex lenses are used for the correction of short-sightedness and far-sightedness.

Ames room

An Ames room is a distorted room that is used to create an optical illusion.

Kepler´s laws of planetary motion

The three important laws describing planetary motion were formulated by Johannes Kepler.

Lighthouse

Lighthouses are used as an aid to navigation in coastal waters.

Observatory

Observatories are often built at high elevations to minimise the effects of atmospheric turbulence

Optical isomerism

Mirror image isomers of asymmetrical shapes and solids are non-superimposable.

The mechanism of vision

The curvature of the lens of the eye changes when we look at a distant or at a near object, to ensure a sharp image.

How does it work? - Computer tomography scanner

This animation demonstrates the structure and operation of CT scanners.

How does it work? - Electron microscope

This animation demonstrates the structure and operation of electron microscopes.

Transparency

This animation explains transparency and opacity, the principle of radiography, and the light-absorbing properties of materials.

Satellite types

Satellites orbiting the Earth can be used for civilian or military purposes.

Voyager space probes

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