PINHOLE CAMERA

A pinhole camera, also known as camera obscura, or “dark chamber”. Although the concept of pinhole camera was visualized in 1545, it was put in to practice to take a photograph during 1850 by Sir David Brewster.When light falls on an object, each point on its surface reflects light rays in all the directions. If these rays are made to pass through a hole they produce a inverted image of the object on the projection plane and this image being at all parts proportional to the object clearly indicates the receiving of energy at a point through a straight ray coming out of a hole.In fact technically the best camera in the world is a pinhole camera, because it does not involve aberrations and the one which works perfectly as per the principles of rectilinear propagation of light.