Abstract: An optical engine of a light emitting diode (LED) light module comprises a heat dissipation device, an LED light bar and an optical component. The heat dissipation device comprises a base plate and a plurality of fin plates vertically welded onto a surface of the base plate. The LED light bar is disposed on an opposite surface of the base plate so that the LED light bar can dissipate heat through the fin plates. The optical component having a space for accommodating the LED light is provided to form a desired light distribution pattern.

Abstract: An external bridge system includes a host interface, a first device interface and a second device interface, which uses a communication protocol different from that of the first device interface. A bridge controller translates signals compliant with the communication protocol of a host to or from signals compliant with the communication protocol of the first or second device.

Abstract: A system and method for measuring wind velocities are provided. A laser wind velocimeter with a radiation source includes a fiber laser. All optical signals, transmitted and received, are conveyed by optical fibers. An amplifier amplifies a source laser, which is then transmitted to one or more transceivers. The one or more transceivers, each projecting along a different axis, and each with a single optical fiber input/output interface act as both the transmission device to focus the radiation at a target region, and as the receiving system for collecting reflected radiation. The one or more transceivers transmit radiation to the target region.

Abstract: This invention provides a high-efficiency light-emitting device and the manufacturing method thereof The high-efficiency light-emitting device includes a substrate; a reflective layer; a bonding layer; a first semiconductor layer; an active layer; and a second semiconductor layer formed on the active layer. The second semiconductor layer includes a first surface having a first lower region and a first higher region.

Abstract: An LED lamp includes an illumination apparatus and a heat-dissipating waterproof cover. The illumination apparatus includes LED modules; and the heat-dissipating waterproof cover is configured to cover the LED modules. The heat-dissipating waterproof cover includes a plurality of drain members, and a gap is formed between every two drain members so as to increase the air convection, thereby increasing heat dissipation efficiency of the LED modules. Every two adjacent drain members are partially overlapping in vertical to prevent the intrusion of water.

Abstract: The disclosure provides a light emitting device comprising a light source and a reflector, having specular ink, surrounding the light source.

Abstract: A light emitting diode (LED) lighting device is provided. The LED lighting device includes an LED light bar and a passive heat sink. The passive heat sink includes a base and a plurality of heat sink fins. The LED light bar is placed on one side of the base, and the heat sink fins are placed on the other side of the base. The fins are fixed on the base by soldering.

Abstract: This invention provides a high-efficiency light-emitting device and the manufacturing method thereof. The high-efficiency light-emitting device includes a substrate; a reflective layer; a bonding layer; a first semiconductor layer; an active layer; and a second semiconductor layer formed on the active layer. The second semiconductor layer includes a first surface having a first lower region and a first higher region.

Abstract: A method of wear leveling for a non-volatile memory is disclosed. A non-volatile memory is divided into windows and gaps, with each gap between two adjacent windows. The windows comprise physical blocks mapped to logical addresses, and the gaps comprise physical blocks not mapped to logical addresses. The windows are shifted through the non-volatile memory in which the mapping to the physical blocks in the window to be shifted is changed to the physical blocks in the gap.

Abstract: Systems and methods are disclosed for measuring a distance, a velocity, etc., of a target using coherent laser radiation. In one example, a method is provided comprising measuring a time required for a light pulse to travel to and from a target, the light pulse reflecting from the target, and determining the distance to the target based on the measuring. The method also comprises measuring a Doppler shift of the reflected light pulse using an optical detection technique and determining the velocity of the target from the Doppler shift. In a further example, a system is disclosed comprising a transceiver, a coherent source, an optical system and a detector configured to measure the distance to the target based on a measured time for a light pulse to travel to and from the target. The system is also configured to determine the velocity of the target from a measured Doppler shift.

Abstract: An AC-LED protection circuit comprises an AC-LED with a first terminal and a second terminal, and a circuit protection unit electrically connects with the first and second terminals of the AC-LED. When a voltage between two terminals of the circuit protection unit exceeds a voltage threshold, the circuit protection unit substantially forms a short circuit. Also, when a current through the circuit protection units exceeds a current threshold, the circuit protection unit forms a substantial open circuit.

Abstract: A laser Doppler velocimeter is formed using a fiber laser as the lasing medium. Within the velocimeter, all optical signals, transmitted and received, are conveyed by optical fibers. An amplifier amplifies a source laser, which is then transmitted to one or more transceivers. The one or more transceivers, each projecting along a different axis, and each with a single optical fiber input/output interface act as both the transmission device to focus the radiation at a target region, and as the receiving system for collecting reflected radiation. The transceivers each include an amplifier to further amplify the radiation received from the laser source. The one or more transceivers transmit radiation simultaneously to the target region, and may be located remotely from the laser source. The portion of the reflected radiation collected by the receiving system is analyzed to determine the Doppler shift caused by targets at the focal point of the one or more transceivers.

Abstract: An optical engine of a light emitting diode (LED) light module comprises a heat dissipation device, an LED light bar and an optical component. The heat dissipation device comprises a base plate and a plurality of fin plates vertically welded onto a surface of the base plate. The LED light bar is disposed on an opposite surface of the base plate so that the LED light bar can dissipate heat through the fin plates. The optical component having a space for accommodating the LED light is provided to form a desired light distribution pattern.

Abstract: An LED lamp includes an illumination apparatus and a heat-dissipating waterproof cover. The illumination apparatus includes LED modules; and the heat-dissipating waterproof cover is configured to cover the LED modules. The heat-dissipating waterproof cover includes a plurality of drain members, and a gap is formed between every two drain members so as to increase the air convection, thereby increasing heat dissipation efficiency of the LED modules. Every two adjacent drain members are partially overlapping in vertical to prevent the intrusion of water.

Abstract: Surface plasmon resonance (SPR) sensing technique which provides high specificity and accuracy has been an important method for molecular sensing technology. In the past, in order to affix 45 nm gold film onto glass or silicon substrate, several nanometers of chromium (Cr) or titanium (Ti) has been used as adhesive layer for the attachment of Au film. However, the existence of Cr or Ti thin film deteriorates the performance of SPR sensor due to their characteristic optical absorption. Our experimental results have confirmed the uses of conducting metal oxide, specifically, ITO and Zinc Oxide (ZnO) can be used to replace Cr or Ti for better performance in terms of SPR resonant properties (resonant angle and HMBW) and sensitivity enhancement for 3 to 15 times than traditional ones. It would contribute significantly to the SPR applications in both biosensors and gas sensors.

Abstract: A solar cell includes a substrate, a chip, a convex lens structure, and an infrared filter. The substrate has a groove in which the chip is placed. The chip can transform light energy into electric energy. Furthermore, the convex lens structure is placed over the groove. The infrared filter is attached to the incident surface of the convex lens structure.

Abstract: A medical light device includes a main body, a light source, a filler, and a contact part. A cavity, receiving a light source, is disposed on the main body. The filler is composed of transparent material, filled inside the cavity, and covers the light source. The contact part, composed of soft and transparent material, is placed adjacent to the filler, covering the surface of the filler. The refractive index difference between the contact part and the filler is smaller than the refractive index difference between the filler and air.

Abstract: A light box apparatus comprises at least one light source, a frame, and a light guide plate. The frame, the side frames of which are made of metallic formed bars, has an accommodation space. The light guide plate, disposed in the accommodation space, has a lateral side. The frame has at least one side frame edge, which has an inlay groove adjacent to the lateral side, and the light, emitted from the light source disposed in the inlay groove, passes through the lateral side and transmits in the light guide plate.

Abstract: A light emitting diode (LED) lighting device is provided. The LED lighting device includes an LED light bar and a passive heat sink. The passive heat sink includes a base and a plurality of heat sink fins. The LED light bar is placed on one side of the base, and the heat sink fins are placed on the other side of the base. The fins are fixed on the base by soldering.

Abstract: An LED lighting module comprises an array luminous element and a bar-like light guiding structure. The array luminous element comprises a plurality of illuminants of top-emitting LEDs arranged in an array form. The bar-like light guiding structure surrounds two laterals of the array luminous element. The bar-like light guiding structure comprises a first curved surface and a second curved surface. The first curved surface and the second curved surface respectively descend toward the middle of the array luminous element from the two sides of the array luminous element, and meet above the middle of the array luminous element. The first curved surface and the second curved surface connect with each other at the plane with a certain angle and in tangency where the positive optical axis exists. The positive optical axis is the direction perpendicular to the plane on which the LEDs are mounted.