http://hdl.handle.net/10397/76 Search the Channel search http://repository.lib.polyu.edu.hk/jspui/simple-search http://hdl.handle.net/10397/5245 Title: Lens used for improving diffraction efficiency of blue-ray disc and China high definition disc = 一种用于增强蓝光光盘和中国高清光盘衍射效率的透镜<br/><br/>Authors: Lee, W. B. (李榮彬); To, Sandy (杜雪); Li, Lihua (李莉華); Wang, Wenkui (王文奎)<br/><br/>Abstract: 本实用新型涉及一种用于增强蓝光光盘和中国高清光盘衍射效率的透镜，包括第一透镜面(1)和第二透镜面(2)，第一透镜面为自由曲面，第二透镜面为非球面。第一透镜面和第二透镜面将入射光聚焦到聚焦区，聚焦区内包括聚焦在蓝光光盘信息记录层(31)和中国高清光盘信息记录层(41)。通过相位控制结构使得透镜对应蓝光光盘和中国高清光盘的衍射效率得到提升，降低能量损耗和改善杂散光产生。 http://hdl.handle.net/10397/5244 Title: Zoom lens system = 变焦透镜系统<br/><br/>Authors: To, Sandy (杜雪); Cheung, Chi-fai Benny (張志輝); Lee, W. B. (李榮彬); Jiang, Jinbo (蔣金波); Wang, Wenkui (王文奎)<br/><br/>Abstract: 本发明提供了一种变焦透镜系统，包括依次安装在同一光轴上的变焦单元、补偿单元和成像单元以及驱动传动机构和微处理控制单元。其中驱动传动机构包括变焦步进电机和补偿步进电机。变焦单元通过传动件安装在变焦步进电机的输出轴上，补偿单元通过传动件安装在补偿步进电机的输出轴上，微处理控制单元根据由变焦步进电机驱动的变焦单元和成像单元之间的距离变化调节由补偿步进电机驱动的补偿单元和成像单元之间的距离。本发明结构紧凑，体积小，制造简单、成本低、经济，方便携带。; The invention provides a zoom lens system, which comprises a zooming unit, a compensating unit and an imaging unit arranged on a same optical axis in turn, a driving transmission mechanism and a micro-processing control unit, wherein the driving transmission mechanism comprises a zooming stepping motor and a compensating stepping motor. The zooming unit is arranged on an output shaft of the zooming stepping motor through a driving piece; the compensating unit is arranged on an output shaft of the compensating stepping motor through the driving piece; and the micro-processing control unit adjusts the distance between the compensating unit driven by the compensating stepping motor and the imaging unit according to the distance changes between the zooming unit driven by the zooming stepping motor and the imaging unit. The zoom lens system has the advantages of compact structure, small volume, simple manufacturing, low cost, economization and portability http://hdl.handle.net/10397/5243 Title: 触觉传感器及相应的触觉传感阵列<br/><br/>Authors: Tao, Xiaoming (陶肖明); Wang, Yangyong (王楊勇); Shu, Lin (舒琳)<br/><br/>Abstract: 本实用新型涉及一种触觉传感器，其中包括用于接收外界压力发生形变的流体包；设置在所述流体包上用于将所述流体包的形变转换为阻值变化的传导线；以及用于测量所述传导线的电阻值并将所述电阻值转化为所述外界压力的检测模块。本实用新型还涉及一种触觉传感阵列，本实用新型的触觉传感器及相应的触觉传感阵列在低压范围内具有较高的灵敏度、集成的测量设备非常适合小型化和穿戴使用以及可应用于多个领域，避免了现有的触觉传感器在低压测量领域不够敏感或测量不方便的缺陷。 http://hdl.handle.net/10397/5242 Title: Flexible ultrasonic transducer array and applying device of the same = 柔性超声换能器阵列及其应用装置<br/><br/>Authors: Zheng, Yong-Ping (鄭永平)<br/><br/>Abstract: The invention provides a flexible ultrasonic transducer array, which comprises at least two ultrasonic transducer units and flexible layer medium. The ultrasonic transducer is arranged in the flexible layer medium or on the surface of the flexible layer medium in the form of array; an ultrasonic device comprises at least two ultrasonic transducer units, an ultrasonic emitter/ultrasonic transceiver, ultrasonic coupling medium, a microprocessor and flexible layer medium, and the ultrasonic transducer unit is arranged in or on the surface of flexible layer medium in the form of array to form flexible ultrasonic transducer array; ultrasonic transducer array and the ultrasonic device also comprises a shape scanner/shape sensor which is used for measuring superficial shape information of flexible ultrasonic transducer array and helping ultrasonic beam focus and orient. As flexible ultrasonic transducer array can attach to body position with different superficial shapes, the technical proposal provided by the invention can realize the effect of ultrasonic treatment/ultrasonic imaging which can be realized by the prior art.; 一种柔性超声换能器阵列，包括有数量不少于2的超声换能器单元和柔性层介质，该超声换能器单元以阵列形式安置于该柔性层介质中或表面；一种超声装置，包括有数量不少于2的超声换能器单元、超声发射器/超声发射接收器、超声耦合介质、微处理器、及柔性层介质，该超声换能器单元以阵列形式安置于该柔性层介质中或表面而构成柔性超声换能器阵列；对于上述超声换能器阵列及超声装置，还包括有形状扫描仪/形状传感器，用于测量所述柔性超声换能器阵列的表面形状信息，以帮助超声波束的聚焦和定向。本发明技术方案，因其中柔性超声换能器阵列能够贴合各种具有不同表面形状的身体部位，从而能够获得现有技术无法达到的超声治疗/超声成像效果。