Telescopic+Improvements

A refractor, or also called a refracting telescope is a hollow tube where it will use a primary lens at the opening to diffract, or the path of imcoming light waves. The "objective lens" primary lens is used to collect more light than a human eye could. When the light passes through the objective lens it will bent or refract. Different light waves that enter on a parallel paths come together at a focal point. Light waves that come in at an angle blend on the focal plane. It is the perfect combination of both which make an image that is more refracted and magnified by a secondary lens called the eyepiece.

Binoculars are two telescopics mounted for each eye. To understand how the binoculars work you need to understand how the telescope works. The magnifying glass is in place as the objective lens how a telescope would work. When an image passes the perfrile vision, it will invert. There is two prisms inside each binocular tube, so when light through the foremost lens, it flips upright and reflects to the eyepiece of the binocular, which will focus on the image and will enlarge it. The exiting pupil is how much light ray enters the objective lens and exits the ocular lens.The size of the exit pupil is completed by dividing the aperture lens size by the magnification size. A zoom lens is a mechanical assembled lens for which the focal length can be varied, as to a fixed length lens. Zoom lenses aren't a new invention at all, they were used way back in 1834 in astronmical and naval telescopes to change the magnification of the image. The first zoom lenses that corrected for optical zooms was introduced in 1932, and in 1959 was the first production zoom lens for 35mm camares was introduced.

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