5 Joseph von Fraunhofer demonstrating his spectroscope to colleagues... | Download Scientific Diagram
![An engraving depicting Joseph von Fraunhofer (1787-1826), a German physicist who developed the spectrum and mapped the lines of the solar spectrum (Fraunhofer lines). Dated 19th century - SuperStock An engraving depicting Joseph von Fraunhofer (1787-1826), a German physicist who developed the spectrum and mapped the lines of the solar spectrum (Fraunhofer lines). Dated 19th century - SuperStock](https://cdn.superstock.com/1746/Comp/1746-111946096.webp)
An engraving depicting Joseph von Fraunhofer (1787-1826), a German physicist who developed the spectrum and mapped the lines of the solar spectrum (Fraunhofer lines). Dated 19th century - SuperStock
![Joseph Von Fraunhofer, Birth Bicentenary of Joseph Von Fraunhofer Serie, Circa 1987 Editorial Photography - Image of antique, collection: 144194142 Joseph Von Fraunhofer, Birth Bicentenary of Joseph Von Fraunhofer Serie, Circa 1987 Editorial Photography - Image of antique, collection: 144194142](https://thumbs.dreamstime.com/z/joseph-von-fraunhofer-birth-bicentenary-serie-circa-moscow-russia-february-stamp-printed-germany-federal-republic-shows-144194142.jpg)
Joseph Von Fraunhofer, Birth Bicentenary of Joseph Von Fraunhofer Serie, Circa 1987 Editorial Photography - Image of antique, collection: 144194142
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