Development on highly transparent ceramics

Abstract

Transparent dielectric ceramics were developed originating from dielectric ceramics of which development was conducted by Dr. Wakino for microwave applications. A Ba(Mg,Ta)O 3 based transparent ceramics shows high transparency and various optical properties depending on the composition. Based on the knowledge obtained from the study of Ba(Mg,Ta)O 3 based transparent ceramics, we also developed other transparent ceramics such as LaAlO 3 -Sr(Al,Ta)O 3 solid solution. The Ba(Mg,Ta)O 3 based transparent ceramics was commercially utilized as high-refractive-index lens for slim digital camera applications, where the refractive indices reduced the focal length of optical lens modules.