Optical system for hologram display

A method by an optical system, comprising:

• receiving a light wave and selectively passing horizontally polarized light of the light wave using a polarizer;
• converting horizontal polarization of the light wave into RCP using a first quarter wave plate;
• passing the light wave using a half mirror;
• converting a polarization of the light wave from RCP to horizontal polarization using a second quarter wave plate;
• reflecting the light wave using a polarizing beam splitter and making it incident on a third quarter wave plate;
• converting horizontal polarization of the light wave into RCP using the third quarter wave plate;
• reflecting the light wave using a first mirror and converting the polarization of the light wave from RCP to LCP;
• converting the polarization of the light wave from LCP to vertical polarization using the third quarter wave plate;
• passing the light wave through the polarizing beam splitter and making it incident on a fourth quarter wave plate;
• converting vertical polarization of the light wave into RCP using the fourth quarter wave plate;
• reflecting the light wave using a second mirror and converting the polarization of the light wave from RCP to LCP;
• converting the polarization of the light wave from LCP to horizontal polarization using the fourth quarter wave plate;
• and
• reflecting the light wave using the polarizing beam splitter and making it incident on a reflective polarizer.

A system for reconstructing a hologram, comprising:

• a polarizing beam splitter for reflecting a light wave when the light wave is horizontally polarized or transmitting a light wave when the light wave is vertically polarized;
• a second quarter wave plate, a half mirror, a first quarter wave plate, a polarizer, a first lens, and a spatial light modulator, sequentially arranged in a first direction from the polarizing beam splitter, which is a direction opposite to a direction in which the light wave is input;
• a third quarter wave plate and a first mirror, sequentially arranged in a second direction from the polarizing beam splitter, which is a direction in which the first direction is rotated 90 degrees counterclockwise;
• a fourth quarter wave plate and a second mirror, sequentially arranged in a third direction from the polarizing beam splitter, which is a direction opposite to the second direction;
• and
• a reflective polarizer, a second lens, and a Fourier plane, sequentially arranged in a fourth direction from the polarizing beam splitter, which is a direction opposite to the first direction.