Ernst Lau
Ernst Lau (born March 7, 1893 in Brno ; † February 17, 1978 ) was a German optician. He is considered to be the inventor of varifocals .
Lau studied philosophy, physics and psychology in Berlin and Tübingen . After completing his doctorate on problems of stereoscopic vision, he began working at the Physikalisch-Technische Reichsanstalt in Berlin in 1920 . Here he headed the radiation laboratory until 1946. He and Ernst Gehrcke developed the multiplex interference spectroscope in 1927 .
In 1946 he founded an institute for optics and precision mechanics, which was taken over by the German Academy of Sciences of the GDR in 1948. Together with G. Jaeckel and Rolf Riekher, he registered the first patent for progressive lenses in 1953.
Lau published many works on stereoscopy, interference spectroscopy and microscopy, excitation voltage of spectral lines , artistic portrait photography and the use of double grids.
Ernst-Lau-Strasse in Berlin's science and business location Adlershof is named in his honor.
Works
- Equidensitometry. Basics, procedures and areas of application. Akademie-Verlag Berlin 1957.
Individual evidence
- ↑ Varifocal has been around since 1953. In: Der Tagesspiegel , October 15, 2011
| personal data | |
|---|---|
| SURNAME | Lau, Ernst |
| BRIEF DESCRIPTION | German optician |
| DATE OF BIRTH | March 7, 1893 |
| PLACE OF BIRTH | Brno |
| DATE OF DEATH | 17th February 1978 |