WordNet-Online
Free dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
Hint: double-click any word to get it searched!

	Enter your search terms Submit search form
	Web www.wordnet-online.com

Definitions from WordNet

Definitions from the Web

Concave Lens

A concave lens, also known as a diverging lens, is a lens that is thinner at the center and thicker at the edges. It is characterized by its inwardly curved surface.

Uses and Applications

Concave lenses are widely used in various fields:

Optics

• In optics, concave lenses are utilized to correct nearsightedness (myopia) by diverging the incoming light before it reaches the eye.
• They are also employed in telescopes and microscopes to magnify and enhance the field of view.

Photography

• Concave lenses are utilized in photography to achieve special effects, such as creating a fish-eye perspective or barrel distortion.

Ophthalmology

• Concave lenses are commonly used in ophthalmology for vision correction, particularly in cases of hyperopia (far-sightedness) when combined with convex lenses.

Sample Sentences

1. The optometrist prescribed John a pair of concave lenses to correct his nearsightedness.
2. When taking landscape photos, the photographer attached a concave lens to capture a wider angle of view.
3. By using a concave lens, the scientist was able to observe the specimen under the microscope with enhanced clarity.
4. Martha decided to upgrade her eyeglasses, opting for a combination of convex and concave lenses to correct her astigmatism.

For related products, you can check out:

• Concave Lenses on Amazon
• Diverging Lenses on Amazon
• Telescopes on Amazon
• Microscopes on Amazon