Abstract: An optical touch control system and an optical sensor thereof are provided. The optical sensor can be applied to a display having a display surface. The optical sensor includes a connecting frame, a light curtain module and a light emitter. The connecting frame has a first end portion and a second end portion opposite the first end portion. The light curtain module is disposed between the first end portion and the second end portion of the connecting frame. The light curtain module includes a light emitter electrically connected to the display so as to generate an invisible light curtain parallel to the display surface. The optical detection module is disposed on the second end portion of the connecting frame. The optical detection module includes a light detector electrically connected to the display so as to retrieve information about a touch location where an object touches the invisible light curtain.

Abstract: The present disclosure provides a projection system and a light screen generating device thereof. The light screen generating device includes a movable carrier module, a first light-emitting module, and a second light-emitting module. The first light-emitting module includes a plurality of first light-emitting structures disposed on the movable carrier module. Each of the first light-emitting structures generates an invisible light screen, and the invisible light screens respectively generated by the first light-emitting structures are mated with each other to form a spliced invisible light screen for increasing light emission uniformity. The second light-emitting module includes a second light-emitting structure that is disposed on the movable carrier module and that generates a visible light screen parallel to and overlapping the spliced invisible light screen.

Abstract: An optical touch control system and an optical sensor thereof are provided. The optical sensor can be applied to a display having a display surface. The optical sensor includes a connecting frame, a light curtain module and a light emitter. The connecting frame has a first end portion and a second end portion opposite the first end portion. The light curtain module is disposed between the first end portion and the second end portion of the connecting frame. The light curtain module includes a light emitter electrically connected to the display so as to generate an invisible light curtain parallel to the display surface. The optical detection module is disposed on the second end portion of the connecting frame. The optical detection module includes a light detector electrically connected to the display so as to retrieve information about a touch location where an object touches the invisible light curtain.

Abstract: An interactive display system includes an input device and an image interaction module. The input device has a touch portion including a built-in first light-emitting module and a built-in second light-emitting module. The image interaction module includes a display module, a first image-capturing module, a second image-capturing module and a processing module. The processing module captures invisible light generated by the first light-emitting module through the first image-capturing module, for determining and obtaining the position of the touch portion. The processing module captures visible light generated by the second light-emitting module through the second image-capturing module according to the position of the touch portion, for determining and obtaining a predetermined color light source provided by the visible light generated by the second light-emitting module.

Abstract: The present disclosure provides a projection system and a light screen generating device thereof. The light screen generating device includes a movable carrier module, a first light-emitting module, and a second light-emitting module. The first light-emitting module includes a plurality of first light-emitting structures disposed on the movable carrier module. Each of the first light-emitting structures generates an invisible light screen, and the invisible light screens respectively generated by the first light-emitting structures are mated with each other to form a spliced invisible light screen for increasing light emission uniformity. The second light-emitting module includes a second light-emitting structure that is disposed on the movable carrier module and that generates a visible light screen parallel to and overlapping the spliced invisible light screen.

Abstract: A gastrointestinal tract diagnosis device comprising: an endoscope, having a magnetic plate with a first magnetic pole and a second magnetic pole; a magnetic control device including a magnetic stick with a first electrical magnetic pole and a second electrical magnetic pole, a magnetic force output module causing a predetermined force on the first electrical pole and the second magnetic pole by outputting a predetermined current; and a magnetic force feedback module, wherein the predetermined force is applied to the magnetic plate to control the movement of the endoscope; the magnetic plate causes a feedback magnetic force to a sensor in the magnetic stick and changes the predetermined current to an offset current, and the offset current is corrected back to the predetermined current by the magnetic force feedback module, so as to improve the movement control of the endoscope. A control method based on the above disclosure is provided, too.

Abstract: A gastrointestinal tract diagnosis device, comprising: an endoscope having a substrate and a control unit and a recognition marker therein; an image capturing module including a first lens and an image sensor that are disposed on the substrate; an illuminating module including a first light source disposed on the substrate; an enclosure body assembled to a connection device to waterproofingly enclose the image capturing module and the illuminating module; and a work station connecting to the endoscope to access the recognition marker to add a machine identity into the recognition marker to match with the endoscope, wherein the work station determines if a usage state of the endoscope is overdue; the work station determines if the endoscope has connected to an another work station different from the work station by the recognition marker and the machine identity. A control method based on the above device is also provided.

Abstract: An interactive display system includes an input device and an image interaction module. The input device has a touch portion including a built-in first light-emitting module and a built-in second light-emitting module. The image interaction module includes a display module, a first image-capturing module, a second image-capturing module and a processing module. The processing module captures invisible light generated by the first light-emitting module through the first image-capturing module, for determining and obtaining the position of the touch portion. The processing module captures visible light generated by the second light-emitting module through the second image-capturing module according to the position of the touch portion, for determining and obtaining a predetermined color light source provided by the visible light generated by the second light-emitting module.

Abstract: A method for calibrating position of light point is used for an interactive projection system including an image capture device. The image capture device includes an image sensor and an optical filter. The method includes the following steps. A plurality of calibrating patterns formed by visible light is individually projected on a screen. The distance between the calibrating pattern with big area and an optical axis of the image sensor is larger than that between the calibrating pattern with small area and the optical axis. Next, the exposure time of the image sensor is adjusted so the image sensor can capture the images of the calibrating patterns through the optical filter. According to the images of the calibrating patterns, a plurality of coordinate positions is gotten. Then, the coordinate positions are adjusted according to a standard coordinate.

Abstract: A method for calibrating position of light point is used for an interactive projection system including an image capture device. The image capture device includes an image sensor and an optical filter. The method includes the following steps. A plurality of calibrating patterns formed by visible light is individually projected on a screen. The distance between the calibrating pattern with big area and an optical axis of the image sensor is larger than that between the calibrating pattern with small area and the optical axis. Next, the exposure time of the image sensor is adjusted so the image sensor can capture the images of the calibrating patterns through the optical filter. According to the images of the calibrating patterns, a plurality of coordinate positions is gotten. Then, the coordinate positions are adjusted according to a standard coordinate.

Abstract: A multi-mode interactive projection system includes a pointing device, an infrared capturing device, and a projection device. A timing generation module of the pointing device generates several timing signals, and controls the pointing device to execute one light emitting mode according to one timing signal. A light emitting module of the pointing device is controlled by the timing generation module, and generates infrared in a light emitting time according to the executed light emitting mode. In a detection time, the light emitting time corresponds to one light emitting mode. The infrared capturing device periodically captures the infrared. A projection module is controlled by a background image and a writing image outputted by a host device, and projects the image to screen. The host device determines the light emitting mode and continuously captures coordinate points of infrared by the infrared capturing device in the detection time.

Abstract: Disclosed is an ultra-thin light guidance device, which is realized through integrating a micro prism set into a light guidance module, and achieving filtering the incident lights by means of a micro grating in said micro prism set, thus only part of the effective incident lights pass through said micro prism set, while the rest of incident lights are reflected back to a bottom light guidance layer and a bottom light reflection plate, so that lights are reflected back and enters into said micro prism set again. As such, in less than 10 mm thickness of the ultra-thin light guidance device, a dot or a line light source is converted to form an evenly distributed and highly efficient surface light source by making use of said micro prism set.

Abstract: A briefing system is used to project images onto a projection screen to form a projection picture. The briefing system comprises a pointer, a projector and a computer electrically connected to the projector. The computer outputs an image signal to the projector. The projector projects an image corresponding to the image signal onto the projection screen to form the projection picture. The indicator is used to project an indication point. The projector also captures the image of the projection picture and the indication point and transfers the image to the computer. The computer then calculates a location where the cursor on the computer screen should reach according to the location of the indication point on the projection picture and moves the cursor on the screen to there.

Abstract: The present invention discloses an ocular-protection projector device, wherein the projector is additionally equipped with an image-capture unit. When the projector projects information onto a screen, the image-capture unit captures the human-shape image of a user. An image-processing unit, which is arranged inside the projector or an external electronic device, receives the human-shape image, creates a human-shape black mask, and outputs the human-shape black mask via the projector onto an area of the screen corresponding to the user's position. Thereby, the present invention can effectively protect the user's eyes from the harm of intense light.

Abstract: A briefing system is used to project images onto a projection screen to form a projection picture. The briefing system comprises a pointer, a projector and a computer electrically connected to the projector. The computer outputs an image signal to the projector. The projector projects an image corresponding to the image signal onto the projection screen to form the projection picture. The indicator is used to project an indication point. The projector also captures the image of the projection picture and the indication point and transfers the image to the computer. The computer then calculates a location where the cursor on the computer screen should reach according to the location of the indication point on the projection picture and moves the cursor on the screen to there.

Abstract: A dual input/output automatic selection device is disclosed to provide an input/output interface between projectors and peripheral products generating VGA (Video Graphics Array) signals. The dual input/output automatic selection device comprises an input/output unit and an image processing unit. The input/output unit has two VGA ports, each of which is connected to a switch circuit having a VGA image data input path and a VGA image data output path. Each of the two VGA ports serves as either an input port or an output port depending on whether the VGA image data input path or the VGA image data output path is activated. The image processing unit has a switch circuit by which VGA image data from either of the two VGA ports is received for processing. Compared to the conventional unidirectional single input/output interface, the dual input/output automatic selection device has greatly improved the connection accessibility and mobility between the projectors and peripheral products.

Abstract: In data communication systems, high speed transceivers are used to transmit and receive signals to and from the communicating medium. These transceivers can transfer data with very high data rates up to 10 mega-bit per second and provide level conversion, signal isolation, ground isolation, and high impedance. To reduce or suppress electromagnetic interference, the square wave signal is translated into a smooth signal which is converted into a signal capable of traveling through the communicating medium. Signal isolation and ground isolation avoid the danger of high voltage shock and damage to the computer equipment from atmospheric disturbances, such as lightning. High impedance provides the bus structure cabling system necessary for multiaccess.