eyepiece
Noun: 1. The lens or combination of lenses at the viewing end of an optical instrument (such as a microscope or telescope) through which the observer looks to see the magnified image. It is the part closest to the user's eye.
The eyepiece is a crucial component for viewing in optical devices. It further magnifies the image formed by the primary lens or mirror of the instrument. - She adjusted the focus by turning the knob on the eyepiece of the microscope. - The astronomer replaced the standard eyepiece with one that provided a wider field of view.
- "To look through the eyepiece": To observe by placing one's eye at the viewing lens.
- Look through the eyepiece and tell me what you see.
- Eyepiece design types: Specific terms denote different eyepiece designs, such as , , or . These refer to the optical configuration affecting the field of view and image quality.
- Ocular (noun): A formal synonym for eyepiece, often used in technical contexts.
- The microscope's ocular has a 10x magnification.
- Eyecup (noun): A soft rubber or plastic ring surrounding the eyepiece to block stray light and provide comfort.
- Binoculars / Monocular: These devices contain eyepieces (two for binoculars, one for a monocular).
- Ocular
- Viewing lens
The word "eyepiece" has a single, specific meaning related to optical instruments. It is not commonly used in figurative or idiomatic expressions.
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combination of lenses at the viewing end of optical instruments
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