Fusion of holographic floating Images generated with phase type liquid crystal on silicon

• Main Authors: Chou, Fu Lung, 周府隆
• Other Authors: Tsao, Che-Chih
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/50602949232437180957

碩士 === 國立清華大學 === 動力機械工程學系 === 104 === A research of fusion image from a floating imaging system has been studied in this thesis. Liquid crystal on silicon (LCoS) has been used as display screen and the system light source is light emitting diode (LED). However, images can be seen directly from eye without damaging. The holographic image cannot be reconstructed by LED because it is not a coherence light source. But the spatial coherence can be enhancing by placing a finite pinhole in front the LED. The image is coding by computer-generated hologram (CGH) method. Load the hologram pattern which contain the information of a three-dimensional image on to LCoS panel, and use modified partial coherence LED source to reconstruct the image on the panel. A concave mirror is re-imaging the virtual image into space. And produce a real image with depth information without occupying any space. Since the viewing angle of the hologram, which is the diffraction angle of the panel is determined by the pixel size of the panel. The viewing angle of LCoS panel used in our floating image system is too narrow for an imaging system. Therefore, we attempt to calculate the CGH for a particular angle by simulated incident light in different angle. And extend the viewing angle of LCoS panel by fuse the image comes from different view of angle. So that the observers can see the image from different angle.