Opticien et astronome allemand, ne a straubing, en baviere, et mort a munich. Autobahn a8, exit pforzheimwest 43, follow b10 towards karlsruhe, drive through pfinztalberghausen, turn right after the gas station at the edge of the village and then follow signs to the fraunhofer ict. At the age of twelve he lost both parents and was apprenticed to a mirrormaker and lensgrinder for six years without pay. Documentary, history episode aired 10 march 2012 season 1 episode 3. Single slit diffraction pattern is named fraunhofer diffraction. He is kent for discoverin the dark absorption lines kent as fraunhofer lines in the suns spectrum, an for makkin excellent optical gless an achromatic telescope objectives. The city of munich marked the occasion by giving him relief from paying city taxes. The preceding unsigned comment was added by pboudreau talk contribs 02. Though he received very little in the way of formal schooling, he dedicatedhis life to creating optical instruments of unsurpassed quality. He also was the first to use extensively the diffraction grating, a device that disperses light more effectively than a prism does. When he was 11 years old he had no father and no mother.
His work set the stage for the development of spectroscopy. He was the tenth and last son of a poor glassgrinder who was unable to give his boy even the rudiments of knowledge. The king of bavaria made him a knight of the order of civilian service, thus raising him in status to one of the nobility. In 1814, he discovered and studied the dark absorption lines in the spectrum of the sun now.
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