Using Beyond tie by Kakleidesigns and images from Pixabay and free picks.
A lens is a transmissive optical
a 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. Lenses are made
from materials such as glass or plastic, and are ground
and polished or molded to the desired shape.
A lens can focus light to form an image,
unlike a prism, which refracts light without focusing