Abstract: Battery modules are provided. A battery module for a portable electronic device includes a first case, a second case, a battery cell enclosed by the first and second cases, a spacing means, and an adhesive. The first case includes a first surface, and the second case includes a second surface corresponding to the first surface. The spacing means is disposed between the first and second surfaces, forming a gap therebetween. The adhesive is disposed in the gap to connect the first and second surfaces of the first and second cases.

Abstract: A piezo-driven micro-droplet jet generator comprises an ejection seat, having an ejection plate with a plurality of ejection holes; a membrane, having a front side facing the ejection seat and a rear side; a piezoelectric plate, placed at the rear side of the membrane, at least partly touching the membrane and, when electric voltage is applied, driving a vibrating movement of the membrane towards the ejection plate; a base plate, at four corners thereof fastened to the ejection seat and to the membrane; and a flow path inside the ejection seat, allowing liquid to be let into a space inside the ejection seat; wherein liquid between the membrane and the ejection plate upon the vibrating movement undergoes pressure, being ejected through the plurality of ejection holes.

Abstract: A keyboard structure. The keyboard structure includes a base plate, a light guide member, a membrane circuit board, a key assembly and a light-emitting element. The light guide member is disposed on the base plate. The membrane circuit board is disposed on the light guide member. The key assembly is disposed on the membrane circuit board, with a key cap and a resilient element between the key cap and the membrane circuit board. The light-emitting element is adjacent to the light guide member and is disposed under the membrane circuit board. Light from the light-emitting element enters the resilient element and key cap via the light guide member.

Abstract: An optical detector measuring a movement of an object in a space on a measurement axis comprises a light source, a reflective portion, a detection unit and a converting unit. The light source comprises a resonance chamber, the light source emitting a laser beam toward the object, the laser beam contacting the object and generating a first scattering beam and a reflection beam, wherein a part of the first scattering beam enters the resonance chamber. The reflective portion reflects the reflection beam toward the object, the reflection beam re-contacting the object and generating a second scattering beam and a sub-reflection beam, wherein a part of the second scattering beam and the sub-reflection beam enter the resonance chamber. The detection unit measures an optical-electrical variation in the resonance chamber to generate an electric signal. The converting unit converts the electric signal to a movement on the measurement axis in the space.

Abstract: A keyboard structure. The keyboard structure includes a base plate, a light guide member, a membrane circuit board, a key assembly and a light-emitting element. The light guide member is disposed on the base plate. The membrane circuit board is disposed on the light guide member. The key assembly is disposed on the membrane circuit board, with a key cap and a resilient element between the key cap and the membrane circuit board. The light-emitting element is adjacent to the light guide member and is disposed under the membrane circuit board. Light from the light-emitting element enters the resilient element and key cap via the light guide member.

Abstract: A keyboard structure. The keyboard structure includes a base plate, a light guide member, a membrane circuit board, a key assembly and a light-emitting element. The light guide member is disposed on the base plate. The membrane circuit board is disposed on the light guide member. The key assembly is disposed on the membrane circuit board, with a key cap and a resilient element between the key cap and the membrane circuit board. The light-emitting element is adjacent to the light guide member and is disposed under the membrane circuit board. Light from the light-emitting element enters the resilient element and key cap via the light guide member.

Abstract: A micro-droplet generator, comprising a chamber, enclosed by a casing, a spraying plate, having a plurality of spraying holes, a piezoelectric plate, a signal connector, and a storage tank. The piezoelectric plate is mounted inside the chamber, having a fixed end fastened on the casing and a free end performing a bending movement. The input port issues signals that cause the bending movement of the piezoelectric plate. The chamber and the storage tank contain liquid, with a constant difference of liquid levels in the chamber and the storage tank being maintained, so that negative pressure in the chamber is automatically regulated.

Abstract: The present invention disclose a composite structure for light diffusion, including at least one carrier media layer and a microlens system comprising a plurality of microlenses thereon. A transparent material for enlarging the shape is coated on each microlens to cover the gaps between the microlens. Partial surface of the transparent material can be coated a light absorbing layer for glare reduction. Besides, the microlens can be or asymmetric or arranged in random, non-periodic array for interference reduction.

Abstract: The present invention disclose a composite structure for light diffusion, including at least one carrier media layer and a microlens system comprising a plurality of microlenses thereon. A transparent material for enlarging the shape is coated on each microlens to cover the gaps between the microlens. Partial surface of the transparent material can be coated a light absorbing layer for glare reduction. Besides, the microlens can be or asymmetric or arranged in random, non-periodic array for interference reduction.

Abstract: A piezo-driven micro-droplet jet generator comprises an ejection seat, having an ejection plate with a plurality of ejection holes; a membrane, having a front side facing the ejection seat and a rear side; a piezoelectric plate, placed at the rear side of the membrane, at least partly touching the membrane and, when electric voltage is applied, driving a vibrating movement of the membrane towards the ejection plate; a base plate, at four corners thereof fastened to the ejection seat and to the membrane; and a flow path inside the ejection seat, allowing liquid to be let into a space inside the ejection seat; wherein liquid between the membrane and the ejection plate upon the vibrating movement undergoes pressure, being ejected through the plurality of ejection holes.

Abstract: A charger includes a first housing, a second housing connected with the first housing, and a PCB assembled between the first and second housings. The first housing is defined with a plurality of battery chambers. Each battery chamber is assembled with first and second resilient plates for respectively contacting positive and negative poles of a rechargeable battery. Each resilient plate has a contact portion and a soldering portion. A circuit system is defined at the PCB and includes an AC-DC circuit, a charging circuit, and a power output and input circuit. The circuits are connected with each other and connected with the soldering portions of the first and second resilient plates of each battery chamber. A power input socket and a power output socket are formed to connect with the power output and input circuit.

Abstract: A cursor control method for an electronic device. The electronic device comprises a detecting window and a cursor shown on a monitor. An object is disposed on the detecting window. A laser diode with a laser cavity is provided to generate a plurality of laser beams with different polarization in a plurality of continuous time periods. A first and a second laser beams are guided to the detecting window, to impinge on the object along first and second incident axes, which reflects the first and second laser beams causing them to re-enter the laser cavity. A converting unit converts the electric variation of laser cavity caused by a self-mixing effect and Doppler periods into first and second electric signals to determine the displacement of the cursor.

Abstract: A wireless input device for controlling and inputting data to an electronic apparatus is provided. The wireless input device includes a housing, a first input unit, and a second input unit. The first and second input units are respectively on opposite sides of the housing, thereby connecting to the housing. The first input unit has a plurality of keys. The second input unit has a first key set and a second key set, each being disposed on a separate key face. The key sets are selectively situated to correspond to a position of the second input unit.

Abstract: A card connector has an insulative frame, a plurality of conductive terminals received in the insulative frame, an eject device assembled on the insulative frame and a shell covering the insulative frame. The eject device includes a driving rod, a driven shaft, a driven sleeve, a slider and a resilient element. The driving rod axially defines a 90 degree first continuous chute, and the driven shaft axially defines a 90 degree second continuous chute for meshing with the first continuous chute. The driven sleeve is fixed on the insulative frame and telescopically meshes with the driven shaft. The slider is cantileveredly mounted on the driving rod. During insertion of the card, the driving rod drives the driven shaft to rotate. A stop block of the driven sleeve disengages from an abutting portion of the slider, and thereafter engages with a wedging hole of the card. Thus, the card in final position is protected against exterior reverse shock.

Abstract: An n-way timing apparatus includes a main body, several event timing keys, several timing modules, a display, and a display module. The event timing keys are disposed on the main body. Each of the event timing modules is coupled to one event timing key, for counting time of a corresponding event. The display is disposed on the main body and coupled to the display module. The display module is for displaying a total timing area and several event timing areas on the display. The total timing area shows a total time period, and each of the event timing areas shows an event occurring period for a corresponding event during the total time period.

Abstract: A micro-droplet generator, comprising a chamber, enclosed by a casing, a spraying plate, having a plurality of spraying holes, a piezoelectric plate, a signal connector, and a storage tank. The piezoelectric plate is mounted inside the chamber, having a fixed end fastened on the casing and a free end performing a bending movement. The input port issues signals that cause the bending movement of the piezoelectric plate. The chamber and the storage tank contain liquid, with a constant difference of liquid levels in the chamber and the storage tank being maintained, so that negative pressure in the chamber is automatically regulated.

Abstract: A keyboard structure. The keyboard structure includes a base plate, a light guide member, a membrane circuit board, a key assembly and a light-emitting element. The light guide member is disposed on the base plate. The membrane circuit board is disposed on the light guide member. The key assembly is disposed on the membrane circuit board, with a key cap and a resilient element between the key cap and the membrane circuit board. The light-emitting element is adjacent to the light guide member and is disposed under the membrane circuit board. Light from the light-emitting element enters the resilient element and key cap via the light guide member.

Abstract: Micro lens systems and articles thereof that may be applied to LCD display systems and/or projection systems include carrier media layers having attached arrays of micro lens systems for modification of a light path, either horizontally and/or vertically. The micro lens systems may have light dispersing surfaces and/or may contain an isotropic light disperser, such as light diffusing particles or other types of bulk diffuser. The carrier media layers may include combinations of reflective material, highly transparent material, light absorbing material, opaque material, photosensitive film, light dispersing material, metallic material, prism-like optical material, retarding material, polarizing material and/or any other functional material to provide extra modification of optical performance.

Abstract: Micro lens systems and articles thereof that may be applied to LCD display systems and/or projection systems include carrier media layers having attached arrays of micro lens systems for modification of a light path, either horizontally and/or vertically. The micro lens systems may have light dispersing surfaces and/or may contain an isotropic light disperser, such as light diffusing particles or other types of bulk diffuser. The carrier media layers may include combinations of reflective material, highly transparent material, light absorbing material, opaque material, photosensitive film, light dispersing material, metallic material, prism-like optical material, retarding material, polarizing material and/or any other functional material to provide extra modification of optical performance.

Abstract: A method of manufacturing a pointing stick is provided. A post or a substrate of the present invention is provided with a hollow portion, and a predetermined gap is defined between the post and the substrate. After an adhesive is supplied to the gap through the hollow portion, it is heated to join the post and the substrate.