Abstract: A light sensor includes an optoelectronic device and a light guide element. The light guide element has a first light incident surface and a light exit surface, so as to allow an incident light to enter the light guide element from the first light incident surface and then exit to the optoelectronic device from the light exit surface; wherein at least one of the light incident surface and the light exit surface has a single curved surface.

Abstract: A light combining structure including a first beam splitter, a first light source, a second light source and a second beam splitter is provided. The first light source is disposed on a first side of the first beam splitter to emit a first light and is provided with a first reflection surface. The second light source is disposed on a second side of the first beam splitter to emit a second light and is provided with a second reflection surface. The second beam splitter is disposed on a third side of the first beam splitter, wherein the first beam splitter allows the first light and the second light to partially reflect and partially penetrate, and the first reflection surface, the second reflection surface and the second beam splitter allow the first light and the second light to enter a fourth side of the first beam splitter after being reflected.

Abstract: A light source module including first and second light sources, first and second wavelength conversion units, and first and second light splitting units is provided. The first light source emits a first light having a first wavelength. The first wavelength conversion unit converts at least one portion of the first light into a first converted light having a second wavelength. The second light splitting unit allows the lights having the second and third wavelengths to travel through and reflects the light having the first wavelength. The second light source emits a second light having the first wavelength. The second wavelength conversion unit converts at least one portion of the second light into a second converted light having the third wavelength. The first light splitting unit is disposed between the first and second wavelength conversion units and reflects the first wavelength and allows the second wavelength to travel through.

Abstract: A control method for an optical device includes a detector detecting a current position of a lens, a processor calculating a distance between the current position and a target position, the processor determining whether the current position is within a predetermined range according to the distance, and the processor controlling a driving device to move the lens into an allowable range according to whether the current position is within the predetermined range. The predetermined range and the allowable range are corresponding to the target position.

Abstract: An intraoral scanner includes a projecting module, an image-capturing module, a linkage structure, and a manipulation part. The projecting module includes a first lens device and a light source. Light emitted by the light source is projected out of the intraoral scanner by the first lens device. The image-capturing module includes a second lens device and an image sensor. The image sensor receives the light from the outside of the intraoral scanner through the second lens device. The manipulation part is exposed from the intraoral scanner and is mechanically linked with the first or second lens device through the linkage structure. Therein, the manipulation part is operable to correspondingly move at least one first lens of the first lens device or at least one second lens of the second lens device through the linkage structure, so as to adjust a scanning zone of the intraoral scanner.

Abstract: A hinge module includes a plurality of discs, a plurality of friction plates and a restraining member. The discs are eccentrically connected to each other. Each of the friction plates has a circular hole, each of the friction plates is rotatably disposed on one of the discs through the circular hole, and the friction plates contact each other. The restraining member is disposed on the friction plates.

Abstract: A fixing frame for a lamp is provided. The fixing frame is arranged on the lamp, and the lamp for being arranged on a display, and the display has a display surface. The fixing frame includes a first part and a second part. The first part matches the shape of lamp. The second part is connected with the first part to stand upright on the lamp, the second part has a first height in a longitudinal direction of the lamp, and a first surface of the second part is parallel to the display surface.

Abstract: A light source module includes phase retardation layer, first light source, second light source, first Polarization Beam Splitter (PBS) layer, second PBS layer, first redirector and second redirector. The phase retardation layer, the first light source, the second light source, the first PBS layer, the second PBS layer, the first redirector and the second redirector are symmetrically disposed relative to symmetry axis. The first light source and the second light source each emit polarized light having first linear polarization direction and polarized light having second linear polarization direction. The phase retardation layer converts the first linear polarization direction of polarized light into the second linear polarization direction. The PBS layers allow polarized light having the first linear polarization direction to travel through but reflect polarized light having the second linear polarization direction. The redirector reflects polarized light having the second linear polarization direction.

Abstract: A touch display device includes several LED units and several switches. Each LED unit includes a LED and a photo sensor. The switches are electrically coupled to the LED units. During a conductive period of a conductive one of the switches, the LEDs and the photo sensor coupled to the conductive one are enabled non-simultaneously.

Abstract: A three dimensional image generation method can include capturing a plurality of images of an object, generating a plurality of point clouds corresponding to a first sequence and a plurality pieces of first pose information according to the plurality of images, generating a second sequence according to a plurality of correlations among the plurality of images, performing a plurality of registration operations on the plurality of point clouds in the second sequence to adjust the plurality pieces of first pose information to generate a plurality pieces of second pose information, and combining the plurality of point clouds according to the plurality pieces of second pose information to generate a three dimensional image of the object.

Abstract: A head-up display system for a vehicle is provided. The vehicle includes a dashboard body and a front window above the dashboard body. The head-up display system includes a display device. The display device includes a display screen. The display device is rotatably disposed on the dashboard body and shifts between a first position and a second position. When the display device is in the first position, the display screen of the display device faces the front window. When the display device is in the second position, the display screen does not face the front window.

Abstract: An intraoral scanner includes a device body and a connection portion. The device body has a heat-dissipating structure and a first electrical connection port. The connection portion is detachably connected to the device body and includes a second electrical connection port and a fan. The second electrical connection port is electrically connected to the first electrical connection port. The fan generates an airflow that flows through the heat-dissipating structure.

Abstract: A laser projector includes a light combining device, a light splitting system, a plurality of light valves, and a beam combiner. The light combining device is for emitting an illumination beam. The light splitting system is for receiving the illumination beam to generate a plurality of color beams. The plurality of light valves is for receiving and modulating the plurality of color beams to generate modulated color beams. The beam combiner is for combining the modulated color beams to form a multi-color image.

Abstract: A mechanical member of detecting adhesion strength is assembled with a housing. The mechanical member includes a main structural portion, a bridging portion and an inspection portion. The main structural portion is adhered to the housing. The bridging portion is connected to the main structural portion and has a cuttable property. The inspection portion is connected to a position of the bridging portion different from the main structural portion, and is adhered to the housing. The inspection portion is pulled or pushed by an external force when the bridging portion is cut off, so as to evaluate adhesion strength between the main structural portion and the housing according to a separation degree between the inspection portion and the housing.

Abstract: An electronic device including a voltage detection circuit, a control and protection circuit, at least one voltage converter, and a system-on-chip is provided. The voltage detection circuit detects a voltage source to output a voltage detection signal. The control and protection circuit, coupled to the voltage detection circuit, generates a system power enabling signal according to the voltage detection signal. The at least one voltage converter, coupled to the control and protection circuit, generates a system power signal according to the system power enabling signal. The system-on-chip, coupled to the at least one voltage converter, controls the electronic device when receiving the system power signal. In response to a power off signal generated from the system-on-chip, the control and protection circuit further isolates the voltage detection signal to avoid the transition of the voltage detection signal affecting a system shutdown procedure of the electronic device.

Abstract: A driving method of a display device comprises the following steps. A period to turn off a backlight module is set. An overdrive voltage is applied, and an overdrive time required for a liquid crystal to change from a first target gray scale to a second target gray scale is obtained. A turn-off time point for turning off the backlight module is adjusted so that at least a part of the period when the backlight module is turned off overlaps the overdrive time.

Abstract: The application discloses an image display device and a control method thereof. The control method for the image display device includes: receiving a first image signal from a host and displaying a frame, a first frame data of the first image signal having a first frequency; determining that the image display device enters a Motion Blur Reduction (MBR) mode and writing a double frequency of a vertical synchronous signal into a storage unit; and informing the host to read the storage unit and alternatively outputting a second frame data and a black-insertion frame data from the host, the second frame data having a second frequency higher than the first frequency.

Abstract: A driving circuit, a driving method and a display apparatus are provided. The driving method is provided for driving a light-emitting unit including a first light-emitting element series and a second light-emitting element series connected in parallel and connected to a processing unit and a driving unit of a driving circuit. The processing unit detects a first voltage value and a second voltage value. The driving unit detects and transmits a first current value and a second current value to the processing unit. The processing unit determines and compares a first power value and a second power value. When the first and second power values are different, the processing unit controls the driving unit to adjust a driving current setting of the light-emitting element series until the first and second power values are equal. The invention ensures luminance consistency of different light-emitting element series and the luminance uniformity of display apparatus.

Abstract: An electronic device includes a voltage transformation circuit, a back-end circuit, a feedback circuit and a protection circuit. The voltage transformation circuit is configured for outputting a conversion voltage. The feedback circuit is electrically coupled to the back-end circuit and the voltage transformation circuit and is configured for outputting a feedback voltage of the conversion voltage. The protection circuit is electrically coupled to the voltage transformation circuit and the back-end circuit and is configured for detecting the feedback voltage, and outputting a control signal to the voltage transformation circuit according to the feedback voltage.

Abstract: A mobile POS terminal includes an enclosure, a POS system, a touch display panel, a sealant, and at least two temperature sensors. The POS system is disposed in the enclosure. The touch display panel is disposed on the enclosure. The sealant is disposed between the touch display panel and the enclosure. The sealant attaches the touch display panel to the enclosure. The at least two temperature sensors are disposed at at least two corners of the enclosure and under the touch display panel. A tamper warning is generated according to detecting results of the temperature sensors.