In which era did the camera appear?

1725 Discovery of German photosensitive materials

1802 British projection sensitive material, the embryonic form of photography.

In the history of photography in the world, the first picture that can be imaged by photography was made in the laboratory by Niepce, a French inventor of photography and printing (1765- 1833).

In the world photography history, the most brilliant day was in A.D. 1839, when the French painter Daguerre (Louis J M Daguerre1789-1851) invented the "silver plate photography technology" and officially came out. He once held a painting and landscape exhibition in Paris, France on 1822. He used all kinds of light changes to illuminate the picture, which produced unexpected and wonderful effects and was famous. 1829, he bought a lens from a lens dealer in Paris and happened to meet old Nipps. Because of the same consciousness, they cooperated with each other to develop photography and photography technology. Nipps died three years later, and he continued his experiment.

Finally, he announced his great invention in the French society of science on 1839 65438+ 10. The first successful photographic invention in human history was named "Daguerre Photography".

He exposed a copper sheet coated with silver iodide, and then smoked it with mercury vapor to form a silver iodide film as a photosensitive surface. In the self-made camera, the invented photosensitive plate is exposed by projecting light and shadow through the lens, and then the image is developed with mercury vapor in a designed mercury developing box, and then fixed in salt water (which later became baking soda). A permanent image photo can be formed.

1839, Daguerre made the first practical silver camera, which consisted of two wooden cases. One wooden box is inserted into another to focus, and the lens cover is used as a shutter. Only by controlling the exposure time for 30 minutes can a clear image be taken.

184 1 year, optician Vogeland invented the first all-metal camera. The camera is equipped with the world's first photographic lens with the maximum phase aperture of 1: 3.4 designed by mathematical calculation.