What does eyepiece mean?

Definitions for eyepieceˈaɪˌpis

Here are all the possible meanings and translations of the word eyepiece.

Princeton's WordNet

  1. eyepiece, ocular(noun)

    combination of lenses at the viewing end of optical instruments


  1. eyepiece(Noun)

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

Webster Dictionary

  1. Eyepiece(noun)

    the lens, or combination of lenses, at the eye end of a telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed


  1. 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. An eyepiece consists of several "lens elements" in a housing, with a "barrel" on one end. The barrel is shaped to fit in a special opening of the instrument to which it is attached. The image can be focused by moving the eyepiece nearer and further from the objective. Most instruments have a focusing mechanism to allow movement of the shaft in which the eyepiece is mounted, without needing to manipulate the eyepiece directly. The eyepieces of binoculars are usually permanently mounted in the binoculars, causing them to have a pre-determined magnification and field of view. With telescopes and microscopes, however, eyepieces are usually interchangeable. By switching the eyepiece, the user can adjust what is viewed. For instance, eyepieces will often be interchanged to increase or decrease the magnification of a telescope. Eyepieces also offer varying fields of view, and differing degrees of eye relief for the person who looks through them.


  1. Chaldean Numerology

    The numerical value of eyepiece in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of eyepiece in Pythagorean Numerology is: 1

Images & Illustrations of eyepiece

  1. eyepiece

Translations for eyepiece

From our Multilingual Translation Dictionary

Get even more translations for eyepiece »


Find a translation for the eyepiece definition in other languages:

Select another language:

Discuss these eyepiece definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:     


Use the citation below to add this definition to your bibliography:


"eyepiece." Definitions.net. STANDS4 LLC, 2018. Web. 22 Apr. 2018. <https://www.definitions.net/definition/eyepiece>.

Are we missing a good definition for eyepiece? Don't keep it to yourself...

Nearby & related entries:

Alternative searches for eyepiece:

Thanks for your vote! We truly appreciate your support.