Abstract:
A ball screw comprises a shaft, a nut, two return elements, plural rolling elements and a sleeve. When being rotated, the shaft will drive the nut to move and circulate the rolling elements within a circulation path defined by a loaded path and the return passages of the return elements. The nut is provided with a circular groove in an outer circumferential surface thereof, and the sleeve is disposed in the circular groove. The sleeve is provided with plural push grooves in an inner circumferential surface thereof, and there is an angular difference between a rolling passage in the nut and the respective push grooves, and the push grooves cooperate with the rolling elements which pass through the rolling passage. By such arrangements, the push grooves of the sleeve will be pushed by the rolling elements to convert the linear motion into rotary motion, thus making the sleeve rotate.
Abstract:
A light-emitting diode (LED) device is provided. The LED device is formed on a substrate having a carbon-containing layer. Carbon atoms are introduced into the substrate to prevent or reduce atoms from an overlying metal/metal alloy transition layer from inter-mixing with atoms of the substrate. In this manner, a crystalline structure is maintained upon which the LED structure may be formed.
Abstract:
A semiconductor device having light-emitting diodes (LEDs) formed on a concave textured substrate is provided. A substrate is patterned and etched to form recesses. A separation layer is formed along the bottom of the recesses. An LED structure is formed along the sidewalls and, optionally, along the surface of the substrate between adjacent recesses. In these embodiments, the surface area of the LED structure is increased as compared to a planar surface. In another embodiment, the LED structure is formed within the recesses such that the bottom contact layer is non-conformal to the topology of the recesses. In these embodiments, the recesses in a silicon substrate result in a cubic structure in the bottom contact layer, such as an n-GaN layer, which has a non-polar characteristic and exhibits higher external quantum efficiency.
Abstract:
A liquid crystal display (LCD) system is provided. The LCD system includes a light-passable plate, an LCD panel and a controller. The light-passable plate is configured to allow natural light to pass through the light-passable plate; and the LCD panel is coupled to the light-passable plate and is configured to receive the natural light passing through the light-passable plate. Further, the controller is coupled to the LCD panel to control the LCD panel such that the natural light passing through the light-passable plate is used as backlight for operation of the LCD panel. The light-passable plate structurally supports the LCD panel in addition to providing the natural light to the LCD panel.
Abstract:
A ball screw comprises a shaft, a nut, two return elements, plural rolling elements and a sleeve. When being rotated, the shaft will drive the nut to move and circulate the rolling elements within a circulation path defined by a loaded path and the return passages of the return elements. The nut is provided with a circular groove in an outer circumferential surface thereof, and the sleeve is disposed in the circular groove. The sleeve is provided with plural push grooves in an inner circumferential surface thereof, and there is an angular difference between a rolling passage in the nut and the respective push grooves, and the push grooves cooperate with the rolling elements which pass through the rolling passage. By such arrangements, the push grooves of the sleeve will be pushed by the rolling elements to convert the linear motion into rotary motion, thus making the sleeve rotate.
Abstract:
A method of forming a circuit structure includes providing a substrate; forming recesses in the substrate; forming a mask layer over the substrate, wherein the mask layer covers non-recessed portions of the substrate, with the recesses exposed through openings in the mask layer; forming a buffer/nucleation layer on exposed portions of the substrate in the recesses; and growing a group-III group-V (III-V) compound semiconductor material from the recesses until portions of the III-V compound semiconductor material grown from the recesses join each other to form a continuous III-V compound semiconductor layer.
Abstract:
A remote controller according to the present invention comprises a power transfer module, a first display module, a control module and a driving circuit. The first display module is provided with some light emitting dices corresponding to the polycrystalline light emitting diodes of the light emitting diode module. Each light emitting dice of the first display module is mainly controlled by the control module to present a mixed color of light and the light emitting diode module is synchronously actuated by the driving circuit to enable the mixed color of light of the light emitting diode module and the first display module to be presented synchronously, thus increasing the operative convenience and improving the control accuracy.
Abstract:
A heat sink mechanism includes a fixed and a movable clamping piece, at least one adjusting gearwheel rotatably mounted to and between the fixed and the movable clamping piece via a fixing shaft while an end of the fixing shaft is screwed to the movable clamping piece, and an adjusting worm shaft rotatably mounted to the fixed clamping piece for driving the adjusting gearwheel to rotate via meshed worm threads on the worm shaft and gear teeth on the adjusting gearwheel. When the adjusting worm shaft is rotated, the meshed worm threads and gear teeth bring the adjusting gearwheel and the fixing shaft thereof to rotate, so that the movable clamping piece screwed to the rotating fixing shaft is brought to move toward or away from the fixed clamping piece to thereby fix the heat sink mechanism to a heat-producing source to achieve the purpose of heat dissipation.
Abstract:
Chemically-defined, non-polymeric valency platform molecules and conjugates comprising chemically-defined valency platform molecules and biological or chemical molecules including polynucleotide duplexes of at least 20 base pairs that have significant binding activity for human lupus anti-dsDNA autoantibodies.