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背景 1.范围本文阐述全息照相术特别是关于物体隔振要求极大降低的全息图的形成和再现。 2.以前技术的说明为了改进全息图技术研制出几种方法使被记录物体的振动影响稍微降低或者减至最低。罗斯和普鲁埃特〔应用光学7.87(1968)〕叙述过这样一种系统,依靠电子反馈伺服系统补偿物体运动。在这种系统中一个感受装置监控由参考光束和物体方位光束形成的干涉条纹图,这个信息用伺服控制机构反馈,使适宜的反射镜定位在光束的光程中以补偿条纹
Background 1. Scope This paper describes the formation and reproduction of holograms, especially with respect to the greatly reduced requirements for object isolation. 2. Description of Prior Art In order to improve the hologram technology, several methods have been developed to slightly reduce or minimize the effects of vibration on recorded objects. Rose and Plutter [Applied Optics 7.87 (1968)] describe a system that relies on an electronic feedback servo system to compensate for object motion. In this system, a sensing device monitors the fringe pattern formed by the reference beam and the object’s azimuth beam. This information is fed back by the servo control mechanism so that a suitable mirror is positioned in the optical path of the beam to compensate for fringes