| 释义 |
Jena|ˈjeɪnə|
The name of a city in East Germany, used attrib. to designate glass made there, which originated in the experiments of Ernst Abbe and Otto Schott and became famous for its high quality and the special kinds that were developed.
1892Work IV. 145/2 The new Schott Jena glass. 1902J. D. & A. Everett tr. Hovestadt's Jena Glass i. 20 The introduction of Jena glass into practical optics was initiated by Abbe, who was now enabled, with the help of the technical resources of Zeiss' optical works, to realise his long-cherished plans for the improvement of the microscope. Ibid. vii. 189 Results for 29 different Jena glasses. 1902[see anastigmat]. 1908W. Rosenhain Glass Manuf. i. 7 Another instance of these refractory glasses is to be found in the Jena special thermometer glasses..; the best of these glasses show little or no plasticity at temperatures approaching 500°C. 1941Jrnl. Inst. Petroleum XXVII. 434 The solution was sucked off via a Jena-glass immersion filter. 1954G. W. Morey Properties Glass (ed. 2) iii. 78 The first Jena ‘Geräte’ glass, made before 1910.., differed from the ordinary soda-lime glass in the substitution of magnesia and zinc oxide for lime, and in having a small content of B2O3. Later..the soda content was reduced and the magnesia largely removed, with increase in the zinc oxide, alumina and boric oxide. |
