the camera OBSCURa
The name 'camera obscura' comes from the Latin words meaning 'darkened room'. The first record of the camera obscura principle goes back to Ancient Greece, when Aristotle noticed how light passing through a small hole into a darkened room produces an image on the wall opposite, during a partial eclipse of the sun.
how it works
Go into a very dark room on a bright day. Make a small hole in a window cover and look at the opposite wall. What do you see? Magic! There in full color and movement will be the world outside the window — upside down!
how the eye works
Light reflected off objects travels in a straight line into the eye through the cornea and the pupil..... the light travels through the lens, which focuses it on the back of the eye, projecting an upside-down image onto the retina. Photoreceptors in the retina translate the images into electrical impulses, which travel along the optic nerve and into the brain....... the brain makes sense of the signal and tell us what we can see
history of photography!!
- The first type of camera form was the camera obscura which was possibly dating back to the ancient Chinese and the ancient Greeks. Which uses a pinhole or lens to project an image of the scene outside, upside down onto a viewing surface.
- The first partially successful photograph of a camera image was made in approximately 1816 by Nicéphore Niépce, using a very small camera of his own making and a piece of paper coated with silver chloride, which darkened where it was exposed to light.