Abstract: A transflective optical plate including a polarization conversion unit, an optical film, and a transparent protective layer is provided. The polarization conversion unit is adapted to change a polarization state of a polarized image light and includes a combiner. The optical film is disposed on the combiner. The transparent protective layer is disposed on the optical film, and the optical film is located between the combiner and the transparent protective layer. A display system is also provided.

Abstract: The present invention relates to a document scanning apparatus which is composed of an automatic document feeding device and an image capturing device. The document scanning apparatus establishes a private area network between the automatic document feeding device and the image capturing device, and causes the automatic document feeding device to send a message to the image capturing device. When the message is received, said image capturing device performs corresponding operations in response to the message. Said operations may comprise, for example adjusting the relative position between the image capturing device and the automatic document feeding device or doing multi-documents scan.

Abstract: The air filter device includes a main member, a conduit member, a sealing piece, a pressurizing piece, a filter element, and a cap. The conduit member, sealing piece, pressurizing piece, and filter element are sequentially stacked in the main member. The conduit member provides a spiral duct with a second inlet and a second outlet. The second inlet is conducted to an outlet opening of the pressurizing piece. The second outlet is conducted to a plug extended from a bottom side of the main member. The cap is fastened to the main member with airflow paths between the cap and main member. The main member may be joined to the inlet terminal of any air compressor. External air is drawn into the air compressor through the filter element, pressuring element, conduit member, and the plug so as to achieve smooth, steady, and quiet air intake.

Abstract: A scanning device includes at least one motor, an input tray, a pickup roller, a separation roller module, an ultrasonic sensor, a scanning module, a path switcher and a controller. The pickup roller is connected with the at least one motor. The separation roller module is connected with the at least one motor. The ultrasonic sensor includes an ultrasonic emitter and an ultrasonic receiver. The ultrasonic sensor is used for sensing that a single paper or multiple papers are fed in. The scanning module is used for scanning a plurality of papers. The path switcher is connected with the at least one motor. The at least one motor is capable of driving the path switcher to be switched to a first position and a second position. The controller is connected with the at least one motor and the ultrasonic sensor.

Abstract: A scanning device includes at least one motor, an input tray, a pickup roller, a separation roller module, an ultrasonic sensor, a scanning module, a path switcher and a controller. The pickup roller is connected with the at least one motor. The separation roller module is connected with the at least one motor. The ultrasonic sensor includes an ultrasonic emitter and an ultrasonic receiver. The ultrasonic sensor is used for sensing that a single paper or multiple papers are fed in. The scanning module is used for scanning a plurality of papers. The path switcher is connected with the at least one motor. The at least one motor is capable of driving the path switcher to be switched to a first position and a second position. The controller is connected with the at least one motor and the ultrasonic sensor.

Abstract: The present invention relates to a document scanning apparatus which is composed of an automatic document feeding device and an image capturing device. The document scanning apparatus establishes a private area network between the automatic document feeding device and the image capturing device, and causes the automatic document feeding device to send a message to the image capturing device. When the message is received, said image capturing device performs corresponding operations in response to the message. Said operations may comprise, for example adjusting the relative position between the image capturing device and the automatic document feeding device or doing multi-documents scan.

Abstract: An armature for a permanent magnet brushed motor includes a shaft, a number of silicon steel laminations circumferentially around the shaft, a commutator adjacent to an end of the shaft, and an enameled wire winding wound around the silicon steel laminations and the commutator. A plastic sleeve capable of withstanding high temperature is disposed between the commutator and the silicon steel laminations and adjacent to the commutator. A plastic member wraps around where the enameled wire winding winds the commutator, and fixedly attaching to the plastic sleeve. As such, the plastic member establishes a first point of attachment at where the enameled wire winding winds the commutator and a second point of attachment to the plastic sleeve. The problem of the enameled wire winding being loosed or broken due to the armature's high-speed rotation is prevented, thereby enhancing the motor's robustness and operational life.

Abstract: A fitting structure is provided for supply of gas and connectable between an air supply tube in the form of a hose or a plastic pipe and an air outlet of an air compressor and includes a fitting and a thermal insulation tube. The fitting includes a first coupling opening connectable with the air outlet of the air compressor and a second coupling opening connectable with the air supply tube. The thermal insulation tube has a first end part fixed inside the second coupling opening of the fitting and a second end part extending outside the second coupling opening such that a portion of the thermal insulation tube that extends outside the second coupling opening is received in the interior of the air supply tube. High-temperature air from the air compressor is conducted through the thermal insulation tube into the air supply tube without being directly applied to the fitting.

Abstract: An armature for a permanent magnet brushed motor includes a shaft, a number of silicon steel laminations circumferentially around the shaft, a commutator adjacent to an end of the shaft, and an enameled wire winding wound around the silicon steel laminations and the commutator. A plastic sleeve capable of withstanding high temperature is disposed between the commutator and the silicon steel laminations and adjacent to the commutator. A plastic member wraps around where the enameled wire winding winds the commutator, and fixedly attaching to the plastic sleeve. As such, the plastic member establishes a first point of attachment at where the enameled wire winding winds the commutator and a second point of attachment to the plastic sleeve. The problem of the enameled wire winding being loosed or broken due to the armature's high-speed rotation is prevented, thereby enhancing the motor's robustness and operational life.

Abstract: An electronic whiteboard system and an electronic whiteboard and operation method thereof are provided. A captured image generated by an image capture device includes at least one of a display surface of a flat panel display and a writing trajectory of a writing instrument. A network transmission module transmits the captured image to a remote device through network. The electronic whiteboard system and an electronic whiteboard and operation method thereof provided by the invention my synchronously display and interact with the remote device, so as to greatly improve convenience of use of the electronic whiteboard system.

Abstract: A fitting structure is provided for supply of gas and connectable between an air supply tube in the form of a hose or a plastic pipe and an air outlet of an air compressor and includes a fitting and a thermal insulation tube. The fitting includes a first coupling opening connectable with the air outlet of the air compressor and a second coupling opening connectable with the air supply tube. The thermal insulation tube has a first end part fixed inside the second coupling opening of the fitting and a second end part extending outside the second coupling opening such that a portion of the thermal insulation tube that extends outside the second coupling opening is received in the interior of the air supply tube. High-temperature air from the air compressor is conducted through the thermal insulation tube into the air supply tube without being directly applied to the fitting.

Abstract: A composite film including a first polarizing film, at least one second polarizing film, and at least one first phase compensation film is provided. The first polarizing film has a first transmission axis. Each second polarizing film has a second transmission axis parallel to the first transmission axis. The at least one first phase compensation film is disposed between the first polarizing film and the at least one second polarizing film. Each first phase compensation film has a first optical axis. An orthographic projection of the first optical axis on the first polarizing film is parallel to an axial direction of the first transmission axis, and a first included angle between the first optical axis and the first polarizing film is greater than 0 degrees and less than 90 degrees. A display device is also provided.

Abstract: An image scanning method is applied in an image scanning device which includes an input tray and a paper feeding sensor. The method detects whether there are papers on the input tray in step one. If there are papers, step two is executed. Otherwise, the method ends and an error is reported. In step two, papers are separated and fed. Whether the papers contact the paper feeding sensor is detected in step three. The method executes step four if the papers contact the paper feeding sensor, and ends the method with an error message otherwise. In step four, the method scans and detects whether an image of a fed edge of each of the papers is abnormal. If the image is abnormal, the method ends and an error is reported. Otherwise, scanning continues.

Abstract: A transflective optical plate including a polarization conversion unit, an optical film, and a transparent protective layer is provided. The polarization conversion unit is adapted to change a polarization state of a polarized image light and includes a combiner. The optical film is disposed on the combiner. The transparent protective layer is disposed on the optical film, and the optical film is located between the combiner and the transparent protective layer. A display system is also provided.

Abstract: The air compressor contains a casing member, a driving member, and a cylinder member. The casing member has a first accommodation section, a second accommodation section, and a connection section connecting the first and second accommodation sections. The first accommodation section has a number of first inlets and first outlets. The driving member is located between the first and second accommodation sections, and is adjacent to the first outlets. The cylinder member is located both in the second accommodation section and the connection section, and is adjacent to the second outlets. The outside cool air is drawn into the casing member through the first inlets. A portion of the drawn air is released through the first outlets, forming a first flow path for cooling down the driving member. Another portion is released through the second outlets, forming a second flow path for cooling down the cylinder member.

Abstract: Disclosed is a pressure gauge device featuring setting for automatic supply and termination of pressure, which includes a pressure gauge, a rotary knob, a rotary knob conductive piece, a rotary knob indicator, and a control device. The pressure gauge includes a hand sweep zone and an electrically conductive indication hand is arranged in the hand sweep zone. The pressure gauge includes a resetting conductive piece. The rotary knob is coupled to the rotary knob conductive piece and the rotary knob indicator and is set outside an outer circumference of the hand sweep zone of the pressure gauge. The resetting conductive piece and the rotary knob indicator are each set in the hand sweep zone and located on a rotation path of the indication hand. The resetting conductive piece and the rotary knob indicator are each in electrical connection with the control device.

Abstract: Disclosed is a pressure gauge device featuring setting for automatic supply and termination of pressure, which includes a pressure gauge, a rotary knob, a rotary knob conductive piece, a rotary knob indicator, and a control device. The pressure gauge includes a hand sweep zone and an electrically conductive indication hand is arranged in the hand sweep zone. The pressure gauge includes a resetting conductive piece. The rotary knob is coupled to the rotary knob conductive piece and the rotary knob indicator and is set outside an outer circumference of the hand sweep zone of the pressure gauge. The resetting conductive piece and the rotary knob indicator are each set in the hand sweep zone and located on a rotation path of the indication hand. The resetting conductive piece and the rotary knob indicator are each in electrical connection with the control device.

Abstract: A pocket scanner includes a printed circuit board (PCB) assembly, an optical engine module electrically connected to the PCB assembly, and a cover assembly enclosing the optical engine module and the PCB assembly. The optical engine module includes a frame of which a bottom is opened with a scanning window. A top of the frame is designed with a slant plane slantwise facing the scanning window. The PCB assembly includes a control PCB placed above the optical engine module and perpendicular with the scanning window, a bracket mounted to the control PCB, and a battery module received in the bracket and electrically connected to the control PCB. A bottom of the control PCB is designed with a slant edge corresponding to the slant plane. The slant edge is against the slant plane when assembly. The cover assembly defines a scanning opening corresponding to the scanning window for scanning an original therethrough.

Abstract: A wireless scanner includes an optical scanning assembly which includes a housing, a light source circuit board, a reflective member and an image capture module. The housing has a bottom wall defining a window, a high end wall, a short end wall and two side walls. Two edges of the two side walls connecting with the top wall and the short end wall are defined as slopes. The light source circuit board is mounted to one of the two side walls and inclined upward and outward. The reflective member is mounted to the slopes and receives light from the light source circuit board to reflect it uniformly on the window. The image capture module is mounted to the high end wall for receiving light which is from an original in the window and reflected by the reflective member and then transmitting it to a Printed Circuit Board assembly.