Abstract: A manufacturing method of a sensing module for an optical fingerprint sensor is provided. A plurality of photo detectors are formed in a light sensing layer. The photo detectors are arranged in a sensing array. A plurality of collimators are formed in a light filter layer. The collimators are divided into a plurality of collimator groups corresponding to the photo detectors. The collimator groups are arranged in a collimator group array. The light sensing layer is attached to the light filter layer so that the light filter layer is disposed on the light sensing layer and the collimator group array of the light filter layer is aligned with the sensing array of the light sensing layer. Each of the collimator groups corresponds to one of the photo detectors, and aligned with and disposed above the corresponding photo detector. Each of the collimator groups comprises the same number of collimators arranged in a specific pattern.

Abstract: Examples of the disclosure describe systems and methods for presenting virtual content on a wearable head device. In some embodiments, a state of a wearable head device is determined by minimizing a total error based on a reduced weight associated with a reprojection error. A view reflecting the determined state of the wearable head device is presented via a display of the wearable head device. In some embodiments, a wearable head device calculates a first preintegration term and second preintegration term based on the image data received via a sensor of the wearable head device and the inertial data received via a first IMU and a second IMU of the wearable head device. The wearable head device estimates a position of the device based on the first and second preintegration terms, and the wearable head device presents the virtual content based on the position of the device.

Abstract: A ventilation fan with lamp is used to be installed to a ceiling including an installation opening and comprises a housing, a fan module and a lamp module. The housing includes a first opening and a second opening, and the first opening is aligned with the installation opening. The fan module is disposed in the housing. The lamp module is fixed to the first opening by a plurality of elastic elements passing through the housing and includes a lamp cover, a base and a lens. The lamp cover includes a flange portion and a plurality of contact portions, the flange portion and the contact portions are disposed outside the installation opening of the ceiling. The lamp module is connected to the ceiling via the contact portions to make a gap between the lamp cover and the ceiling, and the gap serves as an air inlet of the ventilation fan.

Abstract: An organic-inorganic hybrid material is disclosure. The organic inorganic hybrid material contains 5˜50 wt % of inorganic compounds and has a characteristic peak at 1050±50 cm?1 in FTIR spectrum. Furthermore, the invention also provides a fabricating process of the organic-inorganic hybrid material as well as its starting material “isocyanates”. In particular, the isocyanates are prepared from carbonate containing compounds and amines.

Abstract: An optical fingerprint sensing module for sensing a fingerprint pattern of a finger placed on an upper surface of a display panel module is provided, wherein light is generated by the display panel module and reflected by the finger. The optical fingerprint sensing module includes a substrate, an image sensor disposed above the substrate, a collimating layer disposed above the image sensor, a light permeable layer disposed above the collimating layer, and a pinhole layer disposed above the light permeable layer. The collimating layer has a plurality of collimating holes, and the pinhole layer has a plurality of pinholes, wherein the number of collimating holes is greater than the number of pinholes. Light is reflected by the finger and then sequentially propagates through the pinholes, the light permeable layer, and the collimating holes to reach the image sensor.

Abstract: A battery charging apparatus includes a charging power source, a plurality of charging circuits, a plurality of batteries, a plurality of switching circuits and a control circuit. The control circuit is configured to determine the type of charging power source based on a current-voltage curve of the charging power source, and to control conduction states of the switching circuits to connect the charging circuits and the batteries in series in a series charging mode and to connect the charging circuits and the batteries in parallel in an equalizing charging mode. A battery charging method of the battery charging apparatus is also introduced.

Abstract: A manufacturing method of a sensing module for an optical fingerprint sensor is provided. A plurality of photo detectors are formed in a light sensing layer. The photo detectors are arranged in a sensing array. A plurality of collimators are formed in a light filter layer. The collimators are divided into a plurality of collimator groups corresponding to the photo detectors. The collimator groups are arranged in a collimator group array. The light sensing layer is attached to the light filter layer so that the light filter layer is disposed on the light sensing layer and the collimator group array of the light filter layer is aligned with the sensing array of the light sensing layer. Each of the collimator groups corresponds to one of the photo detectors, and aligned with and disposed above the corresponding photo detector. Each of the collimator groups comprises the same number of collimators arranged in a specific pattern.

Abstract: An electronic device is provided. The electronic device includes a metal housing, an insulation element, and an antenna unit. The insulation element is disposed on the metal housing and includes a first heat dissipation hole. The antenna unit is disposed on the insulation element and includes a radiation portion and a feeding portion. The radiation portion is composed of a conductor. The feeding portion is electrically connected to the radiation portion and a grounding plane. In this way, according to the electronic device, space configuration inside the electronic device is saved and a shielding effect of the metal housing is prevented from affecting stability of sending and receiving a signal.

Abstract: An optical fingerprint sensor is provided. The optical fingerprint sensor includes a sensing module. The sensing module includes a light sensing layer and a light filter layer disposed above the light sensing layer. The light sensing layer includes a plurality of photo detectors arranged in a sensing array. The light filter layer includes a plurality of collimators. The collimators are divided into a plurality of collimator groups corresponding to the photo detectors, and the number of collimator groups is equal to the number of photo detectors. Each of the collimator groups comprises the same number of collimators arranged in a specific pattern and disposed above the corresponding photo detector. The photo detectors receive reflected light from a user's finger through the collimators of the corresponding collimator groups.

Abstract: A ventilation system comprises a ventilation fan with a lamp for installing to a ceiling having an installation opening. The ventilation fan comprises a housing, a fan module, a power box, a junction box and a lamp module. The housing has a first opening and an air outlet. The fan module disposed in the housing and comprises an inlet opening and an outlet opening. The outlet opening communicates with the air outlet. Three accommodation spaces are formed between the housing and the fan module at different corners of the housing and disposed away from the air outlet. The power box and the junction box disposed at two of the accommodation spaces. The power box has a first circuit board. The lamp module and the housing are located at opposite sides of the installation opening. The junction box is electrically connected to the first circuit board and the lamp module.

Abstract: An image sensing device includes a sensing module, including a plurality of sensing units, for generating a plurality of first sensing signals and a plurality of second sensing signals; and a plurality of control units, respectively corresponding to the plurality of sensing units, for exposing the plurality of sensing units based on a first exposure period to generate the plurality of first sensing signals, and determining a plurality of second exposure periods for the corresponding sensing units according to the plurality of first sensing signals, and exposing the plurality of sensing units based on the plurality of second exposure periods to generate the plurality of second sensing signals; wherein the plurality of first sensing signals and the plurality of second sensing signals are generated at different times.

Abstract: An optical fingerprint sensing module for sensing a fingerprint pattern of a finger placed on an upper surface of a display panel module is provided, wherein light is generated by the display panel module and reflected by the finger. The optical fingerprint sensing module includes a substrate, an image sensor disposed above the substrate, a collimating layer disposed above the image sensor, a light permeable layer disposed above the collimating layer, and a pinhole layer disposed above the light permeable layer. The collimating layer has a plurality of collimating holes, and the pinhole layer has a plurality of pinholes, wherein the number of collimating holes is greater than the number of pinholes. Light is reflected by the finger and then sequentially propagates through the pinholes, the light permeable layer, and the collimating holes to reach the image sensor.

Abstract: A fingerprint identification system, comprising panel, for placing finger; light source, disposed under panel, for generating incident light, wherein incident light is emitted to and reflected by finger to generate reflected light; processor, for performing fingerprint identification on finger according to plurality of sensing signals; and optical sensing array, disposed under panel and coupled to processor, comprising plurality of sensing units for generating plurality of sensing signals, each of sensing units comprising optical sensor, for receiving reflected light reflected by finger to generate sensing signal; focusing layer, disposed under panel, for focusing reflected light reflected by finger; blocking layer, disposed under focusing layer, for blocking part of reflected light to reduce diffraction phenomenon of reflected light; shading layer, disposed under blocking layer, for blocking part of reflected light to limit incident angle of reflected light; and aperture layer, disposed under shading layer a

Abstract: A ventilation fan comprises a fan, a cover module and a filter. The fan includes an inlet and an outlet. The cover module is disposed at the inlet and includes a main body and a cover. The main body includes an opening and fixing portions. The opening is disposed corresponding to the inlet. The periphery of the opening is configured with two opposite slideways. The fixing portions are disposed on the main body. The cover and the main body are disposed separately to form a gap and the cover includes connecting portions correspondingly connected to the fixing portions. The filter detachably slides on the slideways to be disposed at the opening. The size of the cover is larger than that of the opening. The air flows to the filter and inlet through the gap and flows out of the outlet through the fan.

Abstract: A battery charging apparatus includes a charging power source, a plurality of charging circuits, a plurality of batteries, a plurality of switching circuits and a control circuit. The control circuit is configured to determine the type of charging power source based on a current-voltage curve of the charging power source, and to control conduction states of the switching circuits to connect the charging circuits and the batteries in series in a series charging mode and to connect the charging circuits and the batteries in parallel in an equalizing charging mode. A battery charging method of the battery charging apparatus is also introduced.

Abstract: A ventilation system comprises a ventilation fan with a lamp and a ceiling which has an installation opening. The ventilation fan with the lamp is adapted for installing to the ceiling through the installation opening. The ventilation fan comprises a housing, a fan module, and a lamp module. The housing includes a top plate and a side wall which are connected with each other to form a first opening. The first opening is aligned with the installation opening. The fan module is disposed in the housing. The lamp module is disposed out of the installation opening. The lamp module and the housing are located at opposite sides of the installation opening of the ceiling. The lamp module includes a light source, a base, at least one optical component, a switch and a lamp cover. The optical component and the switch are disposed at the different sides of the base.

Abstract: A ventilation fan with lamp is used to be installed to a ceiling including an installation opening and comprises a housing, a fan module and a lamp module. The housing includes a first opening and a second opening, and the first opening is aligned with the installation opening. The fan module is disposed in the housing. The lamp module is fixed to the first opening by a plurality of elastic elements passing through the housing and includes a lamp cover, a base and a lens. The lamp cover includes a flange portion and a plurality of contact portions, the flange portion and the contact portions are disposed outside the installation opening of the ceiling. The lamp module is connected to the ceiling via the contact portions to make a gap between the lamp cover and the ceiling, and the gap serves as an air inlet of the ventilation fan.

Abstract: A low-voltage differential signaling (LVDS) driving circuit, coupled to a load resistor via a first output end and a second output end, includes: a voltage generating unit, providing a first reference voltage; a first switch, coupled between the voltage generating unit and a first node; a second switch, coupled between the voltage generating unit and a second node; a third switch, coupled between the first node and a third node, the third node having a second reference voltage; a fourth switch, coupled between the second node and the third node; a first resistor, coupled between the first node and the first output end; and a second resistor, coupled between the second node and the second output end. The first resistor and the second resistor are in a series connection with the load resistor.