recording principle
5.Since the dichromated gelatin has a higher diffraction efficiency in all holographic recording materials, the aim of this research is to use dichromated gelatin as the recording material and to make use of the principle of holography to design holographic optical components, especially in fabrication procedure of dichromated gelatin film and in experimental technique to form a high diffraction efficiency using different angular exposure method.
6.Expound the principle of optical and digital holography and build the numerical model of recording and reconstructing process. Then we elicit the location of reconstructed image and the conditions of experiments, such as the range of recording distance and angle between the object light and the reference light.
9.Stops the standard statistics through video recording tracing,the bodily contact which when the competition to 2003-2004 season NBA,in 2004-2005 season CBA competition the basketball athlete shoots occurs to carry on the analysis,to contacts the skill research using the collision principle,has proven when the body contact occurs,the shooting hit probability height,is decided by the body weight,the strength,the speed synthesis influence,but utilizes the reasonable technical method,then appears importantly.

