Abstract:
A light emitting diode (LED) device includes: a substrate having a central portion; an LED chip unit formed on the central portion of the substrate; a circuit pattern having a positive electrode and a negative electrode that are formed on the substrate, each of the positive electrode and the negative electrode including an arc portion and at least one extending portion that extends from the arc portion toward the central portion; a wire unit connecting the LED chip unit to the extending portions; a glass layer disposed on the substrate, covering the arc portions and including an opening unit that is aligned with the central portion of the substrate; a dam structure formed on the glass layer and extending along the arc portions; and an encapsulated body disposed substantially within the dam structure to cover the extending portions, the wire unit and the LED chip unit.
Abstract:
An electrical connector includes an insulating body having a bottom surface, a receiving groove formed in the bottom surface, and at least one support block projecting downwardly from the bottom surface for connection with a circuit board and cooperating with the bottom surface to define a venting space that communicates with the receiving groove and a solder hole in the circuit board. A conductive terminal includes a first positioning portion extending into and positioned in the receiving groove, and a second positioning portion connected to the first positioning portion and extending through the venting space and adapted to be positioned in the solder hole.
Abstract:
An LED package includes a chip carrier, an adhesive layer, one high-voltage LED die, and an encapsulating member. The chip carrier defines a receiving space. The adhesive layer is disposed in the receiving space and has a thermal conductivity of larger than or equal to 1 W/mK. The high-voltage LED die is attached to the adhesive layer to be received in the reflective space and has a top surface formed with a trench. The trench of the high-voltage LED die is disposed at an optical center of the receiving space. The encapsulating member encapsulates the high-voltage LED die and includes a plurality of diffusers. The trench is embedded with the encapsulating member and has a width ranging from 1 μm to 10 μm and a depth of less than or equal to 50 μm.
Abstract:
A DC uninterruptible power supply system includes plural uninterruptible power supply devices, each of which includes a power cord, a battery module, a voltage detecting circuit, a current detecting circuit, and a control unit. When the voltage detecting circuit detects that a voltage at the power cord is lower than a first preset value, the control unit controls the battery module to output electrical power to the power cord. When the current detecting circuit detects that current of another uninterruptible power supply device is smaller than a second preset value, the control unit controls a switch to permit current flow to the another uninterruptible power supply device.
Abstract:
A method for rendering an image from a light-field camera, which generates a raw light-field image, includes: generating feature data, which includes feature elements associated with position information and obtained based on the raw light-field image and a preset threshold condition; generating a raw focused image from the raw light-field image; obtaining a virtual focus position that is designated on the raw focused image; and refocusing the raw focused image according to the virtual focus position by updating pixel values of pixels of the raw focused image that correspond respectively in position to the feature elements of the feature data, so as to generate a refocused image.
Abstract:
A light-emitting touch-switch device includes a first circuit board, a cap unit and a light-emitting element. The first circuit board is electrically coupled to a sensing chip. The cap unit is disposed on the first circuit board and that is at least partially made of an electrically conductive plastic material having a resistance of equal to or smaller than 1×105 Ω. The cap unit and the first circuit board cooperate to define a receiving space. The light-emitting element is disposed in the receiving space and is electrically coupled to the first circuit board. A light-emitting touch-switch module including the light-emitting touch-switch device is also disclosed.
Abstract:
A wireless testing system includes a main computer that controls a wireless module, a rotary mechanism, a measurement device, and an antenna. The rotary mechanism includes a rotatable seat controlled by the main computer to rotate about a first rotation axis, a support arm disposed on the rotatable seat, and a module rotating arm disposed on the support arm and positioning the wireless module at or in the vicinity of the first rotation axis. The module rotating arm is controlled by the main computer to rotate the wireless module about a second rotation axis. The antenna is substantially directed toward the wireless module. The measurement device is controlled by the main computer to control the antenna to receive or transmit a wireless signal.
Abstract:
A power converting device includes a main switch, a synchronous rectifier switch, a rectifier-filter circuit which outputs an output voltage, and a synchronous rectifier control circuit which includes a sampling circuit coupled to the rectifier-filter circuit for outputting a voltage variation signal, a differential amplifier circuit that outputs an amplified signal by adding the output voltage and an offset voltage to the voltage variation signal attenuated thereby, and a comparison circuit that compares the amplified signal with the output voltage so as to output a trigger signal, such that the synchronous rectifier switch is turned on when the main switch is turned off, and is turned off prior to conduction of the main switch.
Abstract:
In a method for document digitization, an apparatus generates a first image of a document sheet by irradiating the document sheet using a first light source and detecting the document sheet irradiated with light from the first light source, which enables detection of ink on the document sheet that defines a marked portion. The apparatus further generates a second image of the document sheet by irradiating the document sheet using a second light source and detecting the document sheet irradiated with light from the second light source, which enables detection of content on the document sheet. The apparatus further obtains a region of the second image that corresponds to the marked portion of the document sheet based on the first image.
Abstract:
A press button device includes a button unit having a main body with a surrounding wall, and an actuating member protruding from an inner side of the main body for actuating a control switch. A flexible connection unit includes a button-coupling portion connected to the surrounding wall in an airtight manner, a fixed portion radially spaced apart from and surrounding the button-coupling portion, and a deformable portion interconnecting the button-coupling and fixed portions. The deformable portion is elastically displaced relative to the fixed portion when the button unit is pressed, and restores the button unit to its original position when the pressing force thereon is removed.