人造散射体散斑照相法  

Man-made scattering specimen for speckle photography

作　　者：顾杰[1] 沈永昭[1] 王开福 

机构地区：[1]苏州大学物理系

出　　处：《激光杂志》1989年第2期57-60,89,共5页Laser Journal

摘　　要：本文提出了用人造散射体进行散斑照相的新技术。人造散射体制作方便,空间频率成份可以任意控制。新技术曝光时间比全孔径法短,又具有多孔法的效果。散斑衍射晕能量分布合理,条纹清晰度好。本文介绍了该法的基本原理及其在静、动态问题中的应用。In this papsr, we have proposed a new technique in which the man-made scattering specimen is used for speckle photography. The man-made scattering specimen is easy to be produced and its spatial frequency can be contrdled arbitraily. The technique possesses properties of multiaperture speckle photography while its ex-posure time is much less than single aperture method. The intensity of speckle diffraction halo distributes more proper and the speckle fringes are clearer than conventional method. The principle of the technique and its application in static as well as dynamic problems are presented.

关 键 词：散斑 照相法 人造散射体 散斑照相 

分 类 号：TB811[一般工业技术—摄影技术]