| abstract |
PROBLEM TO BE SOLVED: To provide an optical assembly which is lighter, thinner, smaller, and can enable an optical irradiation source and a projection path in a display projection system, which is wider than a conventional polarization beam splitter cube. An exemplary optical assembly is a display, a light source for illuminating the display, and a first diffractive polarization beam splitter (DT-) configured to direct light from a first optical director. PBS), which is polarization sensitive and includes a first DT-PBS configured to direct a first portion of light towards the display based on polarization. [Selection diagram] FIG. 2A |