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eyepiece

eyepiece

9 5.9
A small lens you look through on a microscope or telescope
  • noun
  • /ˈaɪˌpiːs/
  • Specialized
translation icon : ocular
  • Binoculars or a telescope with a wide-angle eyepiece will afford the best views of this rare conjunction.
  • eyepiece of a telescope

Examples

  • With mounting tension, I put in a higher power eyepiece and looked more closely.

    Academic text (1994)
  • A man sat on a folding chair on the shore, peering into the scope's eyepiece.

    Fiction book (1999)
  • Take a look through the eyepiece and tell us what you see.

  • Carefully look through the eyepiece.

  • The giant planet also has four bright moons that stand out in the eyepiece.

    Academic text (2005)
  • Watch the sample through the eyepiece and record the temperature when the first crystal starts to melt, which means when the first droplet of liquid appears.

  • Brigham nudges her aside and looks through the eyepiece of the periscope.

    Fiction book (2001)
  • Stasha pressed her face to the eyepieces and adjusted the knobs to either side.

    Fiction book (1992)
  • PHOTO (COLOR): Student Michael Nadolny enjoys the view at the eyepiece of the 7-inch refractor.

    Academic text (2003)
  • Take a look through the eyepiece of the microscope to see the tiny details of the specimen.

Synonyms

lens
vseyepiece
175 2.5

A clear curved piece of glass or plastic that focuses light

is a combination of elements at the viewing end, not a single piece
viewfinder
vseyepiece
14 4.8

A small window on a camera you look through to frame and focus a picture

is for direct observation, not mainly for framing or composing images
ocular
vseyepiece
  • Specialized
1 7.5

A lens you look through on a microscope or telescope

is the more common general term for the same part
optic lens
vseyepiece
  • Specialized
4.2

A curved piece of glass or plastic that helps you see things more clearly in instruments

focuses on the specific viewing-end assembly rather than any vision aid
optical lens
vseyepiece
  • Specialized
3.9

A curved piece of clear glass or plastic that focuses light in cameras and microscopes

is placed at the viewing end specifically to look through

How Magnified

eyepiece
  • Specialized
9 5.9
field lens
  • Specialized
7.3

Surface Forms

eyepiece singular
eyepieces plural

Morphology

eyepiece = eye + piece (transparent) = eye + piece

A straightforward compound 'eye' + 'piece' meaning the piece for the eye (the part you look through), which is understandable from the components.

Etymology

Eyepiece is simply made from eye and piece, meaning 'a piece for the eye'. So an eyepiece is the small lens or part you put your eye to on a telescope or microscope to see things clearly.