screen intensity
1.Series of screen-Bohou adopt large amplitudes, big intensity of vibrations , flexible screen surfaces, the motion parameters characteristics of adjustable amplitudes; the unique structural features of " board of screen active, box inactive, unattached vibration of the screen surface "; though segmented, multi-segments of screen surface jointed, large-scale of screen equipments can be realized, the advantages of large area , big handling capacity and no special requirements to the water of materials make the screen to be the best screen equipments used for the small wet materials .
5.The paper introduces the principle of the technique on color mixing of optical fiber in large screen laser display system. It also discusses the selection of lens,coupling of numerical aperture,function of achromatic compound lens,requirement of incident ray and loss of intensity during the course of coupling process of laser to optical fiber by means of experimental methods. Thus the imaging quality of laser beam is improved after color mixing of optical fiber.
