Fraunhofer biography
Fraunhofer biography wife.
Joseph von Fraunhofer ()
Born in Straubing, Bavaria, on 6 March Orphaned at the age of 11, he did an apprenticeship as lens- and mirror-maker, after which he became employed in a Munich company making scientific instruments.
He learned mathematics and became very skilled in applied optics.
Fraunhofer biography
He was active in the Bavarian academy of sciences, where his skills in applied optics attracted attention. In he was appointed director of the Physics Museum in Munich, and received the (honorary) title of Professor. He died of tuberculosis in Munich on 7 June
In Fraunhofer was fully engaged in the design of achromatic objective lenses for telescopes, which required the accurate determination of refractive indices of optical glasses.
Examining the spectrum of solar light passing through a thin slit, he noticed a multitude of dark lines. These had not been noticed by Newton in because he shone light from the whole solar disk through a circular hole into his prisms.
They had been noticed