搜索结果: 1-7 共查到“光学工程 speckle”相关记录7条 . 查询时间(0.078 秒)
Reflection-type holographic disk-type memory using three-dimensional speckle-shift multiplexing
holographic memory reflection-type hologram speckle shift multiplexing
2016/11/22
This review presents a reflection-type holographic memory using three-dimensional(3D) speckle-shift multiplexing. First, the schematic of the proposed memory system was described. Then, experimental d...
Speckle Reduction in Imaging Projection Systems
Diffractive Diffusers Speckle Contrast Reduction Laser Pico-Projectors
2013/1/30
Diffractive diffusers (phase gratings) are routinely used for homogenizing and beam shaping for laser beam applications. Another use for diffractive diffusers is in the reduction of speckle for pico-p...
Computer Generated Quadratic and Higher Order Apertures and Its Application on Numerical Speckle Images
Higher Order Modulated Apertures Speckle Imaging Resolution Point Spread Function
2013/1/30
A computer generated quadratic and higher order apertures are constructed and the corresponding numerical speckle images are obtained. Secondly, the numerical images of the autocorrelation intensity o...
Living Plant Observation by a Laser Speckle Microscopy
Laser Speckle Laser Microscope Tissue Observation Cell Observation
2009/6/2
Observation of a living plant was performed by a laser speckle microscopy. The merit of this technique is that it is possible to easily obtain information of organisms without any special preparations...
Digital speckle correlation method used to measure blood flow velocity
images blood velocity digital speckle
2011/5/6
The digital speckle correlation method (DSCM) used to measure blood flow velocity is here analyzed. The experiment is designed to obtain the dynamic speckle pattern of blood which is shot by CCD. Then...
When a diffuse object is illuminated with laser light, a random interference effect known as a speckle pattern is produced. If there is movement in the object, the speckles fluctuate in intensity. The...
Application of speckle decorrelation method for small translation measurements
speckle decorrelation in-plane and normal translation
2011/4/25
This paper analyses the usage of the speckle pattern decorrelation method for determination of small static and dynamic object translations. At first the philosophy of the method is presented briefly....