abstract |
Alkaline earth metal titanate compound having an average particle size of 50 nm or less, an average aspect ratio of 1.0 to 1.2, and a refractive index of 1.8 to 2.6 (MTiO 3 : M is Ba, Sr, Ca) And one or more powders selected from the group consisting of Mg and Mg) are useful as high refractive index powders. |