what do you
you mean.
by lens also mention its types?
Answers
Answered by
0
A lens is a transmissive optical device that focuses or disperses light beams by means of refraction. A simple lens consists of a single piece of transparent material while compound lenses consist of several simple lenses arranged along with a common axis. A lens can focus light to form an image, unlike a prism, which refracts light without focusing.
The classification of a lens depends on how the light rays bend when they pass through the lens. The two main types of lenses are:
Convex Lens (Converging)
Concave Lens (Diverging)
Convex lenses are thick in the middle and thinner at the edges. A concave lens is flat in the middle and thicker at the edges. A convex lens is also known as the converging lens as the light rays bend inwards and converge at a point which is known as focal length. On the other hand, the concave lens is also known as a diverging lens because it bends the parallel light rays outward and diverges them at the focal point.
Simple lens and compound lens are the two classifications of lenses. Simple lenses are different from compound lenses based on their surface of curvature. Following are the different types of simple lenses.
Lenses
Compound lenses are those constructed out of a combination of different simple lenses. The lens types used to build a compound lens may have different refractive indices and other properties. The placement of lenses are such that they lie on a single axis, and properties like focal length are calculated again for the new compound lens.
Other Lens Types are:
Cylindrical – curvature in one direction
Fresnel – narrow ring-like surface
Lenticular – a group of microlenses
Gradient Index – flat surfaces but with varying refractive indices
Axicon – conical surface
The classification of a lens depends on how the light rays bend when they pass through the lens. The two main types of lenses are:
Convex Lens (Converging)
Concave Lens (Diverging)
Convex lenses are thick in the middle and thinner at the edges. A concave lens is flat in the middle and thicker at the edges. A convex lens is also known as the converging lens as the light rays bend inwards and converge at a point which is known as focal length. On the other hand, the concave lens is also known as a diverging lens because it bends the parallel light rays outward and diverges them at the focal point.
Simple lens and compound lens are the two classifications of lenses. Simple lenses are different from compound lenses based on their surface of curvature. Following are the different types of simple lenses.
Lenses
Compound lenses are those constructed out of a combination of different simple lenses. The lens types used to build a compound lens may have different refractive indices and other properties. The placement of lenses are such that they lie on a single axis, and properties like focal length are calculated again for the new compound lens.
Other Lens Types are:
Cylindrical – curvature in one direction
Fresnel – narrow ring-like surface
Lenticular – a group of microlenses
Gradient Index – flat surfaces but with varying refractive indices
Axicon – conical surface
Answered by
1
A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis
Similar questions