[OPTICAL REVIEW Vol. 8, No. 1 (2001) 81-84]
Chromatic Properties of SiO2-BaO-TiO2-K2O Series Radial Gradient-Index Material
Hirofumi TSUCHIDA, Satoshi NODA, Toshiyuki NAGAOKA and Kimiaki YAMAMOTO
Olympus Optical Co., Ltd. Corporate Research Division, 2-3, Kuboyama-cho, Hachioji, Tokyo, 192-8512 Japan
(Received October 6, 2000; Accepted November 7, 2000)
Chromatic properties of SiO2-BaO-TiO2-K2O series radial gradient-index material in the range of visible wavelengths are presented and the possibility of apochromatic microscope objectives is considered.
Key words : radial gradient-index, lens system, imaging system, optical design, Sol-Gel method, chromatic aberration, secondary color, partial dispersion, apochromat