Color reflection disk-type multiplex holography using planar master hologram

• Main Authors: Chun-Ting Chen, 陳俊廷
• Other Authors: Yih-Shyang Cheng
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/98388346245633961708

碩士 === 國立中央大學 === 光電科學研究所 === 100 === Image-plane technique for “Reflection disk-type multiplex holography” was developed in 2004. Light shaping diffuser was utilized in the object-beam system to expand the vertical view window of a reflection disk-type hologram. This hologram can display monochromatic 3D object image for 360o walk-around viewing simultaneously. The planar master hologram has the advantage of possibility for commercial mass production. In this thesis, we will introduce how to make a color reflection image-plane disk-type multiplex hologram for walk-around viewing. We first introduce several kinds of methods to fabricate colorful reflection holograms. Then, we describe the method with which single laser is used to fabricate three RGB master holograms. By controlling the incident angles of the object beam and the reference beam, the diffracted image beams from three master holograms can be perceived by the observers situated at designated viewing window. In order to obtain the best holographic process for making color reflection disk-type multiplex hologram, we also demonstrate methods for adjusting the size of object image, the position of image-plane, and the shift of the image-plane under Bragg mismatch condition.