Louis Jacques Mande Daguerre was a French scientist. He was born in 1789 at Cormeilles department and died in 1851. He discovered the process of photography and invented the diorama. He was a scene-painter at Paris, and as early as 1814 had his attention directed by Nicephore Niepce to the subject of photographic pictures on metal. In 1829 they made a formal agreement to work out the invention together, but it was not until after Niepce's death, on July the 5th, 1833, that Daguerre succeeded in perfecting the process since called daguerreotype. The new process excited the greatest interest. Daguerre was made an officer iof the Legion of Honour, and an annuity of 6000 francs was settled on him, and one of 4000 on the son of Niepce. Research Louis Daguerre
Daguerreotype was the earliest process of photographic reproduction, and was so called after its inventor Louis Daguerre. A copper plate, polished and silvered, was sensitised by exposure to iodinevapour, and so coated with a fine layer of silver iodide. It was then exposed in a camera, like modern photographic film, but with a longer exposure time. It was afterwards removed and treated with mercuryvapour, the mercury attaching itself to those areas which had been most exposed to light and settling there in a density proportionate to the strength of the light. Research Daguerreotype
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