Collect information why prisms are ysed in binoculars
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Prisms in binoculars are vital for image correction and keeping the binocular handheld.When light passes through the objective lens of the binoculars the image is inverted.For same viewing applications this would not b an issue but for many this is a problem.In order o rectify this, complex lens arrangements can b used to correct it.These can make the instrument often longer and trickier to handle.So prisms are used to make the correction.
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Prisms in binoculars are vital for image correction and keeping the binocular handheld.When light passes through the objective lens of the binoculars the image is inverted.For same viewing applications this would not b an issue but for many this is a problem.In order o rectify this, complex lens arrangements can b used to correct it.These can make the instrument often longer and trickier to handle.So prisms are used to make the correction.
Hope it helps.
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1. If 2 telescopes are mounted parallel to each other so that an object can be seen by both the eyes simultaneously the arrangement is called binocular.
2. The length of each tube is reduced by using a set of totally reflecting prisms.
3. They provide intense, erect image free from lateral inversion.
f0-focal length of objective
fe- focal length eyepiece
4. Through a binocular we get 2 images of the same object from different angles at same time.
5. Their super position gives the perception of depth also with length and breadth.
6. Binocular vision gives proper 3D image.
7. By using total reflecting prisms there is no loss of intensity.
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