A ray diagram is a tool used to determine the location, size, orientation, and type of image formed by a lens. Ray diagrams for double convex lenses were drawn. Because the rays always diverged by a concave lens, the emerging rays do not The concave lens image can still more be explained by a Concave Lens Ray Diagram.
Hence double a concave lens (or just a concave lens) is also called as. The image formed by a single lens can be located and sized with three principal rays. Examples are given for converging and diverging lenses and for the cases.
A ray diagram is a tool used to determine the location, size, orientation, and type of image formed by a lens. Ray diagrams for double convex lenses were drawn. Converging lenses can produce both real and virtual images while diverging .
The method of drawing ray diagrams for double convex lens is described below.Image formation by convex lens ray diagrams. Image formation in convex lens can be explained with the help of three principal rays shown in figure. The ray parallel to the principal axis passes through the focal point after refraction by the lens.
The ray passing through optical centre passes straight through the lens and remains undeviated. Ray Diagrams for Lenses.
The image formed by a single lens can be located and sized with three principal rays. Examples are given for converging and diverging lenses and for the cases where the object is inside and outside the principal focal length.
In this second example, a converging lens followed by a diverging lens produce a final image which is virtual and inverted. A scaled diagram would be necessary to determine how the height of the final image, I 2, compares to the height of the original object, O.
A lens with one of its sides converging and the other diverging is known as a meniscus lens. A double concave lens is diverging on both of its refracting surfaces.
Whereas, if one side has no curvature but the other side is concave, it is known as a plano-concave lens. The ray diagram above illustrates that the image of an object in front of a double concave lens will be located at a position behind the double concave lens. Furthermore, the image will be upright, reduced in size (smaller than the object), and virtual.
This is the type of information that we wish to obtain from a ray diagram.Diverging Lenses – Ray DiagramsConverging Lenses – Ray Diagrams