What is eyepiece?

Eyepiece is the lens or system of lenses closest to the eye in an optical instrument such as a microscope, that further magnifies the image formed by the objective lens.

An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is named because it is usually the lens that is closest to the eye when someone looks through the device.…

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