OASLM-BASED HOLOGRAPHIC DISPLAY

摘要

Provided is an optically addressable spatial light modulator (OASLM)-based holographic display and a method of operating the same. The display includes an addressing unit including a light source unit emitting a plurality of recording beams, a driving mirror array including driving mirrors that each reflect a recording beam incident thereon, and a mirror member array including mirror members that each obliquely reflect a recording beam incident thereon, in which each of the driving mirrors corresponds to one of the mirror members. The recording beams, which are transmitted by the addressing unit, are focused onto the OASLM by micro lenses of a lenslet array. The OASLM is optically addressed by the recording beams focused by the micro lenses of the lenslet array and thus modulates and diffracts a reproduction beam, incident thereon from a reproduction beam providing unit, and thus a holographic image is reproduced.

主权项

1. An optically addressable spatial light modulator (OASLM)-based holographic display comprising:
an addressing unit comprising:
a light source which emits a recording beam,a mirror member array comprising an array of a plurality of mirror members, wherein each of the plurality of mirror members obliquely reflects a recording beam incident thereon, anda driving mirror array comprising an array of a plurality of driving mirrors, wherein each of the plurality of driving mirrors reflects a recording beam incident thereon,wherein the each of the plurality of driving mirrors corresponds to one of the plurality of mirror members, andwherein the addressing unit provide a plurality recording beams modulated by hologram information about a stereoscopic image; a lenslet array comprising an array of a plurality of micro lenses, wherein each of the plurality of micro lenses focuses a recording beam is incident thereon from the addressing unit; a reproduction beam providing unit which emits a reproduction beam; and an OASLM disposed on an optical path between the lenslet array and the reproduction beam providing unit, wherein the OASLM is optically addressed by the plurality of recording beams incident thereon having been transmitted by the addressing unit and the lenslet array, wherein the OASLM modulates and diffracts the reproduction beam incident thereon from the reproduction beam providing unit, so that a holographic image is reproduced.