EYEPIECE

Eyepiece

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 so named because it is usually the lens that is closest to the eye when someone looks through the device. The objective lens or mirror collects light and brings it to focus creating an image. The eyepiece is placed near the focal point of the objective to magnify this image. The amount of magnification depends on the focal length of the eyepiece.

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eyepiece

Noun

  1. The lens (or combination of lenses) at the eye end of a microscope or telescope by which the image is viewed.


The above text is a snippet from Wiktionary: eyepiece
and as such is available under the Creative Commons Attribution/Share-Alike License.

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