When were black-and-white photos and color photos invented respectively?

1839 On August 9th, the French painter Daguerre announced his invention of silver plate photography, which gave birth to the world's first portable wooden box camera. This is a black and white photo.

2, color photo invention:

1861may 17, in a speech given by the British science society in London, Maxwell produced the world's earliest color image by superimposing and mixing the three primary colors. He was recognized as the founder of the principle of color photography, and the experiment of color photography began.

3, color photo processing:

189 1 year, the French physicist lippmann Gabriel (1845–1921) announced a novel color photography method without dyes. He is a famous professor at the University of Paris, and won the Nobel Prize in A.D. 1908 for being the first to make a "color photographic negative" by scientific method. He used technology to add a layer of reflective mercury to the full-color emulsion, so that the light and shadow passed through the emulsion, and then reflected back to "interfere" with the incident light and shadow into a latent image, which would be accepted. Each color has a different image, which is obviously vivid when viewed. However, the production process of color negative by Lips method is very complicated, which can not be printed repeatedly and needs long exposure, so it cannot be popularized. However, he applied science to the development of photography and made great contributions, so the Nobel Prize was awarded.

1894, French Lumiere August and Louis1862.1864–1954.1948 invented the real color negative, which was recognized as a revolutionary event of "color photography".

1936, color film was born in Wolfen color film factory in Germany, and color photos were officially carried forward.

4. The earliest color photos of China:

The 250 color photos of "Old Kunming" exhibited in Kunming in May 2004 and the exhibitions of "Waiting for You" held in June 2004+0944 and 2004+0 1945 were all identified by experts from the National Museum of China as the earliest color photos discovered in China so far!

In China, color photos became popular in the late 1970s and early 1980s, and in China's first tier cities.