eyepiece

/'aipi:s/

Thân thiện

A scientist looks through the eyepiece of a telescope.

Definition

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.

Usage

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.

Advanced Usage

• "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.

Variants and Related Words

• 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).

Synonyms

• Ocular
• Viewing lens

Notes on Different Meanings

The word "eyepiece" has a single, specific meaning related to optical instruments. It is not commonly used in figurative or idiomatic expressions.

Học thuật

Noun

1. combination of lenses at the viewing end of optical instruments

Từ đồng nghĩa

• ocular