首页>
外国专利>
RECHNERGESTÜTZTE HOLOGRAPHIE UND HOLOGRAPHISCHE COMPUTERGRAPHIK
RECHNERGESTÜTZTE HOLOGRAPHIE UND HOLOGRAPHISCHE COMPUTERGRAPHIK
展开▼
机译:计算机全息和全息计算机
展开▼
页面导航
摘要
著录项
相似文献
摘要
Methods for generating holograms from a computer model of any object employ a combination of numerical and optical means. An illumination model and the light dispersion properties of the objects are specified. The hologram is synthesized from a plurality of smaller hologram elements. Each individual element sustains a field of view of the object. The light rays from the object lying within the field of view and along the lines of sight are sampled by the computer. The sample density should not exceed the resolution limit set by the size of the hologram element. Each light ray is specified by a direction and an amplitude function. The hologram element is obtainable from a Fourier Transform of the sampled rays. In one embodiment, optical means are employed to physically reproduce the sampled light rays using coherent radiation. The reproduced coherent light rays are then interfered with a coherent reference beam to form the hologram element. Alternatively, the interference pattern is calculated directly by the computer and is printed to form the hologram element.
展开▼