diverging lens
- noun
- /dɪˈvɜrdʒɪŋ lɛnz/
- Specialized
- When light passes through a diverging lens, the rays spread out instead of coming together.
Examples
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A diverging lens is commonly used in eyeglasses for people who are nearsighted.
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A diverging lens can create virtual images.
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The technician explained how a diverging lens alters the path of incoming light.
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The diverging lens helps in correcting vision.
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A diverging lens is used in optical devices to spread out parallel light rays.
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The teacher demonstrated how a diverging lens makes light rays diverge after passing through it.
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In cameras, a diverging lens can help in adjusting the focus of the image.
Synonyms
A lens that is thinner in the middle than at the edges and makes parallel light rays spread out
Surface Forms
Morphology
The noun phrase is compositionally transparent: the adjective 'diverging' (tending to separate or spread out) directly modifies 'lens', so a learner who knows both words can infer it is a lens that makes rays spread apart. This follows a common adjective+noun pattern and maps clearly onto the physical action of light, so the meaning is predictable rather than idiomatic.
Etymology
The noun diverging lens comes from the image of a lens that makes light rays move apart: diverging means 'moving apart' and lens is a curved piece of glass. So a diverging lens is simply a lens that causes parallel light rays to 'spread out'.