lens
Plural
lenses
1
(anatomy) the clear elastic part of the eye that concentrates light in order for things to be seen clearly
The lens, a flexible and transparent structure in the eye, contributes to the process of focusing light onto the retina. It works in conjunction with the cornea to refract incoming light, allowing for the formation of clear images. By adjusting its shape, the lens accommodates varying distances, enabling us to see objects up close or at a distance with clarity. Its function is vital for visual acuity and the perception of depth and detail.
- A healthy diet rich in antioxidants can help maintain the clarity and flexibility of the lens.
- Age-related changes in the lens of the eye can result in presbyopia, making it difficult to focus on close objects.
- The eye surgeon performed a delicate procedure to remove a foreign object lodged behind the lens.
- The lens of the eye adjusts its shape to accommodate for different distances, allowing for clear vision at various focal points.
- The lens of the eye focuses light onto the retina, enabling clear vision.
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2
a shaped piece of glass or plastic that refracts light to form images, commonly used in cameras, microscopes, eyeglasses, and telescopes
A lens is an essential part of a camera that focuses light onto the image sensor or film, creating a sharp image. It is made of one or more curved glass elements that bend and direct the light rays. Different lenses can affect how a scene is captured, such as how much of the scene is included, how close distant objects appear, and how the background looks. Lenses are used to control focus, zoom, and depth of field, and they play a key role in determining the overall quality of a photograph.
- She adjusted the camera lens to sharpen the image.
- The microscope's lens revealed the cell structure in detail.
- His glasses have prescription lenses for nearsightedness.
- The telescope's lens magnified the distant stars.
- A wide-angle lens is ideal for landscape photography.
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3
a device in electron optics that manipulates and focuses electron beams using electromagnetic fields, often found in electron microscopes and particle accelerators
- The electron lens focused the beam onto the sample.
- Magnetic lenses are essential in scanning electron microscopes.
- The lens system corrected distortions in the electron path.
- Engineers calibrated the electric lens for better resolution.
- The lens assembly was cooled to maintain stability.
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4
a conceptual framework or perspective used to interpret or analyze information, experiences, or phenomena
- She viewed the issue through a feminist lens.
- History is often taught through the lens of national identity.
- His writing offers a lens into the immigrant experience.
- The documentary provides a lens on climate change.
- Culture acts as a lens shaping our perception of reality.
5
a botanical genus that includes lentil plants, known for their edible seeds and agricultural importance
- Lens culinaris is the species commonly grown for lentils.
- Farmers planted rows of Lens to harvest in the spring.
- The Lens genus thrives in dry, temperate climates.
- Botanists studied the growth patterns of Lens varieties.
- The pods of Lens plants contain nutritious seeds.
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