- US20170098672 "Image sensor including color separation element" by Seokho Yun, Sookyoung Roh, Sunghyun Nam,
- US20170097510 "Image sensor and method of manufacturing the same" by Jinseung Sohn,
- US20170090206 "Color splitter structure, method of manufacturing the same, image sensor including color splitter structure, and optical apparatus including image sensor" by Ilhwan Kim, Doyoon Kim,
- US20170092668 "Optical apparatus including optical functional layer having high refractive index and method of manufacturing the optical apparatus" by Doyoon Kim, Ilhwan Kim.
- US20170092676 "Image sensor including color separation element and image pickup apparatus including the image sensor" by Seokho Yun, Sookyoung Roh, Sunghyun Nam
"The refractive index of the color splitter may be about 1.4 to about 2.4.
The color splitter may include one of high refraction index materials from the group consisting of SiNx, TiO2, ZnS, and ZnSe, or an optical polymer including nanoparticles of the high refraction index materials dispersed in the optical polymer."