
Roles of deciding and efficiently using the path of laser on the optical pickup system of Blue Ray disk, which has recently been highlighted given the requirements of high-resolution of UHD TV, and other entertainment applications

Implementing spectrometric features required for three wavelengths of BD, DVD and CD on single components
Large Wafer, Sheet Type Packing
Satisfying all of transmissivity, phase difference and diffraction ratio of P-wave and S-wave on three wavelengths (406, 650 and 780 nm)