HIGH REFLECTIVE CONSTANT THO2-FREE OPTICAL GLASS HAVING 1.86-1.94 REFLECTIVE CONSTANT AND MORE THAN 30 ABBE'S NUMBER

摘要

new optical glasses in the system b 2o 3 (17 - 24%) - sio 2 (0.5 to 6%), la 2o 3 (40 - 51%) their own measurements, 2 (5 9%) - n 2o 5 / ta 2o 5 (14 - 27%) have been developed, the brechwerte of 1.86.