Year: Day to Day Men: January 9
Betty Boop Coffee
On the ninth of January in 1839, French painter and physicist Louis Daguerre presented a full description of his daguerreotype process to a meeting of the Academy of Sciences held by the eminent astronomer and physicist François Arago, the man who proved the wave theory of light.
The first permanent photograph from nature was made by French inventor Nicéphore Niépee in 1826 through his heliographic process; however, the quality of the image was poor and the process required an exposure time of eight hours. Daguerre’s daguerreotype process, the first practical process of photography, improved the quality of the image and reduced to exposure time to thirty minutes.
Born in Cormeilles-en-Parisis, in November of 1787, Louis Daguerre apprenticed in theater design, architecture and panoramic painting under Pierre Prévost. He was originally a revenue officer and later a scene painter for opera sets. In 1822, Daguerre opened the Diorama, an exhibition venue in Paris which presented three-dimensional pictorial views that changed with various lighting effects. He later opened a second establishment in London’s Regent Park.
Born in Chalon-sur-Saône in March of 1765, Nicéphore Niépee initially began experimenting in 1813 in the recently developed printing technique, lithography. Unskilled in drawing and unable to obtain a proper lithographic stone, he sought a way to make images automatically. Niépee made experiments and developed the heliographic process of using light and light-sensitive supports to produce images. He initially used a substrate of light-sensitive bitumen of Judea, which hardened on exposure to light, to obtain an image on glass. With the use of a camera in 1826, he was able to fix an image on a metal plate made of pewter. However, Niépee was unable to reduce the exposure time by either optical or chemical means.
In 1829, Nicéphore Niépee agreed to the repeated requests by Louis Daguerre for a partnership to perfect and exploit his heliography process. After four years of working without any advancement, Niépee died in July of 1833. Deguerre, building upon Niépee’s discoveries, eventually succeeded in greatly reducing the exposure time. He also discovered that exposing an iodized silver plate in a camera would result in a lasting image if the latent image on the plate was developed by exposure to fumes of mercury and then made permanent by a solution of common salt.
For this discovery, Louis Daguerre was appointed an officer of the Legion of Honor. In 1839, he and the heir of Nicéphore Niépee were assigned annuities of six-thousand and four-thousand Francs, respectively, in return for their photographic process.
Notes: Lithography was invented circa 1796 in Germany by the Bavarian playwright Alois Senefelder. By chance, he discovered the ability to duplicate his scripts by writing then in greasy crayon on slabs of limestone and them printing them with rolled-on ink. As the local limestone retained the crayon marks on its surface, multiple images, called lithographs meaning in Latin stone marks, could be printed in large quantities. It was not until 1820 that lithography became commercially popular.