field lens
- noun
- Specialized
:
lente de campo
- The astronomer adjusted the field lens to capture a wider view of the night sky.
Examples
-
When cleaning a telescope, be careful not to scratch the field lens.
-
A field lens is essential for wide-angle photography.
-
Most binoculars have a field lens to provide a wider field of view.
-
The field lens helps to direct light rays within the microscope for a clearer image.
-
The field lens enhances the view significantly.
-
In the microscope, the field lens plays a crucial role in enhancing the observable area.
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To improve the image quality, she cleaned the field lens of her telescope regularly.
Synonyms
175
2.5
A clear curved piece of glass or plastic that focuses light
A curved piece of glass or plastic that helps you see things more clearly in instruments
A curved piece of clear glass or plastic that focuses light in cameras and microscopes
How Wide
1
5.0
- Specialized
5
4.0
- Specialized
- Specialized
5
3.9
Surface Forms
Morphology
The compound 'field lens' is a straightforward modifier + noun construction: a 'lens' that relates to the 'field' (here, the field of view). A B1 learner who knows 'field' in the sense of 'field of view' and 'lens' can reasonably infer it is a lens that affects or increases the field of view, though precise technical placement may require domain knowledge.
Etymology
Field lens is the lens placed farthest from your eye in instruments like binoculars or microscopes, and the word field means the 'area you can see'. Because this lens helps show more of the scene, it makes that 'area' wider, so a field lens is used to increase the 'field of view'.