Question

why are prisms use in binoculars

Answer 1

Explanation:

hi

The primary reason why prisms are used in binoculars is for correcting the image orientation of the object. When the image is formed by the objective lenses, it appears upside down. People don't enjoy viewing their image that way. Hence the prism is used inside to turn the image upright for the viewer's eyes.

Answer 2

Answer:

Explanation:

it is for correcting the image orientation of the object. When the image is formed by the objective lenses, it appears upside down. People don't enjoy viewing their image that way. Hence the prism is used inside to turn the image upright for the viewer's eyes

Some optical instruments, such as periscopes and binoculars use prisms instead of mirrors to reflect light around corners. This is because mirrors do not reflect light as totally as prisms do (mirrors only reflect about 95% of that reflected by prisms under TIR conditions).