A three-dimensional display device based on random constructive interference principle comprises an amplitude-phase-modulator array (3) which modulates the amplitude and phase of the incident laser. Reflection or transmission holographic optical elements (15), binary optical elements (21) or lenticules (23, 25) with oblique axis are used for forming an interference sub-source array with random distributing position through convergence. A three-dimensional image would be generated by the constructive interference of these interference sub-sources. Three primary color lasers illuminate on different areas of low resolution gray LCD panels (5,6) to achieve three-dimensional color display in real time. The device can be widely applied in three-dimensional display for computer and television, three-dimensional human-machine communicate and robotic vision.
THREE-DIMENSIONAL DISPLAY DEVICE BASED ON RANDOM CONSTRUCTIVE INTERFERENCE PRINCIPLE