Fresnel Lens (Noun)
Meaning
Lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length.
Classification
Nouns denoting man-made objects.
Examples
- A Fresnel lens is used to focus sunlight onto the solar still, increasing its temperature and rate of evaporation.
- The lighthouse used a large Fresnel lens to magnify the light from its lamp and project it out to sea.
- Fresnel lenses are often used in magnifying glasses and other handheld optical devices due to their compact size and lightweight construction.
- The solar concentrator uses a Fresnel lens to focus sunlight onto a small area, generating heat that can be used for cooking or other purposes.
- The use of a Fresnel lens in this design allows for a large aperture and a short focal length, making it ideal for applications where space is limited.