The camera

• Optical Instruments: devices used in optics
• the human eye, camera, magnifying lens, binoculars all have different uses
• The near point of a 10-year-old is 10 cm while an adult about 40 years of age moves beyond 25cm.
• The camera: makes up for the eye's inability to produce permanent record of images formed in retina.
• The camera Obscura, "dark chambers" is the modern day camera predecessor.
• Camera obscura: darkened box with a single small opening on one wall and white projection screen on the opposite wall.
• An inverted real image of a brightly lit exterior object is projected on the white wall.
• Arab-Persian Scientist Hasan Ibn al-Haytham: inventor of the camera.
• 1826: French inventor Joseph Nicephore Niepce created the 1st photogenic camera obscura coupled with a lens to project images onto light-sensitive paper.
• The camera is considered a mechanical eye. Both camera and eye process light and record images
• Both camera and eye have a converging lens that focuses light rays but they differ in the way they adjust to let different amounts of light in
• When focusing on an object the camera lens moves towards or away the object while in eyes the lens itself changes shape.
• The eye processes light and deliver information directly to the brain. Whereas the camera uses light itself to record images on a chip, film, or memory card.