Abstract: The present invention provides a seal ring structure, which comprises a seal ring member. The seal ring member includes a first ring opening on one side and a second ring opening on the other. A periphery of the first ring opening includes a plurality of leak grooves. When the seal ring member and the valve ball squeeze each other, the plurality of leak grooves can reduce the torque required to rotate the valve ball. A leak-groove length of the plurality of leak grooves is smaller than a seal-ring-member length of the seal ring member. The plurality of leak grooves do not penetrate the seal ring member for avoiding leakage of fluid.

Abstract: The present invention provides a seal ring structure, which comprises a seal ring member. The seal ring member includes a first ring opening on one side and a second ring opening on the other. A periphery of the first ring opening includes a plurality of leak grooves. When the seal ring member and the valve ball squeeze each other, the plurality of leak grooves can reduce the torque required to rotate the valve ball. A leak-groove length of the plurality of leak grooves is smaller than a seal-ring-member length of the seal ring member. The plurality of leak grooves do not penetrate the seal ring member for avoiding leakage of fluid.

Abstract: The present invention provides a measurement device for grinding wheel. One or more thickness measurement device is disposed slidably on a platform. A spinning device is disposed on the platform. A grinding wheel is fixed on the spinning device. The spinning shaft spins the grinding wheel. The one or more thickness measurement device measures the flatness condition of the grinding wheel. Furthermore, according to the present invention, a diameter measurement device is disposed inside the platform and measures the roundness of the outer periphery of the grinding wheel. Since the structure can be disassembled easily, the whole measurement device for grinding wheel can be carried conveniently. In addition, measurements can be performed by users on the site where the grinding wheel is located for real-timely understanding the real size and wear condition of grinding wheel.

Abstract: The present invention provides a measurement device for grinding wheel. One or more thickness measurement device is disposed slidably on a platform. A spinning device is disposed on the platform. A grinding wheel is fixed on the spinning device. The spinning shaft spins the grinding wheel. The one or more thickness measurement device measures the flatness condition of the grinding wheel. Furthermore, according to the present invention, a diameter measurement device is disposed inside the platform and measures the roundness of the outer periphery of the grinding wheel. Since the structure can be disassembled easily, the whole measurement device for grinding wheel can be carried conveniently. In addition, measurements can be performed by users on the site where the grinding wheel is located for real-timely understanding the real size and wear condition of grinding wheel.

Abstract: The present invention provides a medical torque hand tool, which comprises a holding part, a torque adjusting device, a torque damping device, and a surgery tool. The holding part is disposed in a hollow member. The torque damping device is disposed in said holding part. The torque adjusting device passes through said holding part. The torque adjusting device and the torque damping device control the elastic deformation of an elastic member for controlling the torque of screwing an object.

Abstract: A head-up display device includes a light source, a reflector, a reflector control unit, and a surface. The light source provides a light signal that corresponds to display data. The reflector is disposed rotatably in a first optical path of the light signal. The reflector control unit receives a control signal corresponding to the display data and controls rotation of the reflector about a rotational center. The surface is disposed in a second optical path. When the reflector is rotated for a predetermined rotational angle by the reflector control unit according to the control signal, the light signal reflected by the reflector is projected on the surface to display an image corresponding to the display data on a predetermined region of the surface.

Abstract: A 3D image playback method includes utilizing a detecting module to detect a visual angle included between a display device and a shutter glasses, playing a plurality of 3D image sets with different visual angles at a specific frequency by the display device, transmitting a synchronization signal corresponding to the visual angle to the shutter glasses by the detecting module, and controlling a switching frequency of the shutter glasses so as to make the shutter glasses capable of receiving one of the plurality of 3D image sets corresponding to the visual angle.

Abstract: A head-up display device includes a light source, a reflector, a reflector control unit, and a surface. The light source provides a light signal that corresponds to display data. The reflector is disposed rotatably in a first optical path of the light signal. The reflector control unit receives a control signal corresponding to the display data and controls rotation of the reflector about a rotational center. The surface is disposed in a second optical path. When the reflector is rotated for a predetermined rotational angle by the reflector control unit according to the control signal, the light signal reflected by the reflector is projected on the surface to display an image corresponding to the display data on a predetermined region of the surface.

Abstract: A 3D image playback method includes utilizing a detecting module to detect a visual angle included between a display device and a shutter glasses, playing a plurality of 3D image sets with different visual angles at a specific frequency by the display device, transmitting a synchronization signal corresponding to the visual angle to the shutter glasses by the detecting module, and controlling a switching frequency of the shutter glasses so as to make the shutter glasses capable of receiving one of the plurality of 3D image sets corresponding to the visual angle.

Abstract: A testing device for testing an embedded system includes an interface capable of being coupled to the embedded system by means of insertion, a storage unit for storing data, and a processor for receiving a testing message corresponding to a testing command from the embedded system via the interface according to an enabling signal and storing the testing message into the storage unit when the interface is coupled to the embedded system.

Abstract: A remote control method for a display device employing a hierarchical control frame, includes a remote controller of the display device outputting a control signal corresponding to a plurality of functions of the display device, and an interpretation module of the display device controlling the display device to perform the plurality of functions when receiving the control signal, wherein the plurality of functions are corresponding to different stages of the hierarchical control frame.

Abstract: A 3D image playback method includes utilizing a detecting module to detect a visual angle included between a display device and a shutter glasses, playing a plurality of 3D image sets with different visual angles at a specific frequency by the display device, transmitting a synchronization signal corresponding to the visual angle to the shutter glasses by the detecting module, and controlling a switching frequency of the shutter glasses so as to make the shutter glasses capable of receiving one of the plurality of 3D image sets corresponding to the visual angle.