Based on analyzing the relationship among the hologram spatial frequency, the object size and the hologram record distance in making the color hologram by two-step method,a method for making color hologram of large objects was proposed.Firstly, the tricolor hologram H1rgb was recorded in visual plane after intercalating right parameters, so as to make sure the full information were recorded in the least area and when H1rgb placed in the same plane, their reappeared images could overlap.Then, the overlapped images were recorded to acquire the color hologram after the information of objects were enlarged by the conjugate light.This method can enlarge the field of view(FOV) and sit for making hologram of large objects.It is verified by experiment that the FOV can be widen by 6 times.

The technique of how to truly show dispersion of light through a glass prism on computer is discussed. Based on the work of Dan Bruton and the display method of color in MATLAB,the mapping relationship between visible wavelength and data in colormap matrix of MATLAB was erected Therefore the corresponding color of the visible wavelength can be displayed truly on computer screen.According to the mapping relationship,to describe prism dispersion as it is was realized by ray tracing.Furtherly used this method to show the experimental result of the incident white light through the pair of prisms which were made of same glass and placed inversely, the verity is that the refracted color rays from red to violet come out from the second prism parallel to the incident white light.

本文以厦门光电产业为背景,围绕产业发展布局,分析了当前光电人才需求与人才培养现状;结合厦门理工学院办学定位,对如何培养与产业发展相适应的应用型光电技术工程人才,就课程设置与实践体系构建进行尝试,探讨了产学相结合的一些问题,旨在进一步优化人才培养体系,定位专业发展方向,体现"亲产业"办学理念,以期"适销对路",为地方光电产业发展服务.

A new method of making a real color dynamic hologram is proposed.We obtain the color and three-dimensional coordinate data of object behaviors,simulate the expression of object lightwave.The parameter of monochromatic holograms and stereoscopic image pairs are well controlled.according to theory of light propagation and the relationship between object and image,three monochromatic Fresnel holograms with stereoscopic image pairs is computed.As a result,when three monochromatic Fresnel holograms are reconstructed in the decided position of the same plane by optical method,all reconstructed images will have a superposition;Reconstruction images by optical method could be recorded and make a rainbow hologram.By the white light,color dynamic images can be seen when move our eyes.This method avoid fussy light path,obtain holograms with high quality and settle the problem for difficult to superpose all the images.

A method of fast making computer-generated hologram is proposed.Both the theory of the simplified model and simulative results are discussed.We compute the object lightwave as intermediate data,Holograms are computed base on these data.The intermediate data is much smaller than the final hologram,which allows high-speed computation at effective storage and transmission,at reduced time for computation.

Low-temperature wafer to wafer bonding has been achieved by using intermediate metals.Tensile test shows that the higher the bonding temperature is.The greater the bonding strengthis.The Si/Si interfaces are analyzed by using X-ray photoelectron spectroscopy(XPS).The results shows that the interface of the samples is made up of Au-Si eutectic alloy and the ratio of Si-Au increases with the annealing temperature increasing.

A color holography that combines computer-generated hologram(CGH)and optical hologram is proposed.Firstly,the colorful image is separated into monochromatic images of red,green and blue automatically by computer.Then,three master holograms(H1)corresponding to red,green and blue information are calculated using computer generated hologram.and the respective diffraction distances between the three monochromatic images and the three computer-generated master holograms are designed accurately by computer.Finally,by combining computer-generated holography with optical holography,a color rainbow hologram(H2)is recorded.By re-illuminating H2 with extended white light,a colorful reconstructed image is acquired.This method utilizes the respective advantage of CGH and optical hologram,and fast-Fourier-transform is introduced to speed up the calculation of CGH,spatial frequency and sampling period of hologram are discussed in ordr to lower the computational complexity.The final colorful reconstructed image resulted from this technology is vivid.

A novel white LED spotlight is presented to transport light over a polymer optical fiber bundle,which has high-efficiency coupling and uniform light distribution.By employing ellipsoidal mirror /reflector,the emergent rays from white LED with common T1-3/4 package are collected into a narrow beam of 15°,which match the numerical aperture of polymer optical fiber bundle.It is proved theoretically and experimentally that the output beam has an evenly intensity distribution.

Based on the ray tracing method,the propagation property of light rays in tapered POF is analyzed and simulated.The meridian ray and skew ray propagation formulas for tapered POF is derived.It is shown that if the ray launches on the small cross-section end,the angle θ_m between the ray and the central axis of the fiber will decreases with the increasing of reflection times m of rays in the core-cladding interface.The larger the taper angle α of fiber is,the more rapid the decreasing of θ_m will be.However,the diffusion angle θ_m of the output rays will become larger with a larger α.The fiber length needed will increase rapidly with the increasing of the reflection times.The analysis result shows that using a tapered POF with smaller taper angle as collimator is appropriate.

Discussed some issues such as symbol standardization and the node-voltage method concerning teaching electronic technologies in view of improvement of the contents.

高职院校建立实验基地可以实现资源共享,在教学中加强实践环节.本文就实验基地建设的基本目标以及发展电类高职教育阐述一些看法.

It is a new method to improve experiment means that EDA, CAI is introduced into physics experiment. This paper proposed a demonstrating method on simple harmonic motion wave in EWB, such as Lissajous figure. It is simple and easy to perform and can be used to research complex motion further. A courseware on physics experiment was also introduced.

The distinctive acoustic signal emitted by plasma while laser welding diamond saw is regarded as a signal which is produced when a carrier wave with frequency of 16kHz is modulated with a periodical signal with frequency of 300Hz. A method to obtain the diagnostic signal, the acoustic feedback control system and the principle of laser welding diamond saw are described in the paper. Experimental results prove that in terms of welding qualities, acoustic feedback method is better than ordinary laser welding method.