eye lens
eye lens — phrase
1. The glass part of an eyepiece — found on microscopes, telescopes, and binoculars
The glass part of an eyepiece — found on microscopes, telescopes, and binoculars — that is positioned toward the person looking through the instrument.
Eri cleaned the microscope's eye lens carefully before beginning the lab session.
collocation: clean the eye lens
When Lucía peered through the telescope, the eye lens was covered in fog.
passive: was covered in fog
A scratch on the eye lens made the binocular image look blurry to Aarav.
Sven adjusted the eyepiece until the eye lens was a comfortable distance from his eye.
Mira compared the eye lens coatings on three microscope models before choosing one.
- ocular lens
a more formal synonym used especially in ophthalmology and technical optical descriptions
- field lens
the lens farthest from the eye inside the same eyepiece assembly
文法句型
the eye lens of [instrument]
用法筆記
Distinguish from field lens, which sits farther from the eye inside the same eyepiece assembly. In binoculars and telescopes each eyepiece contains both an eye lens and a field lens.