64results about How to "High reliability and stability" patented technology

An LED including a substrate having a pair of terminal electrodes, at least one LED element mounted on the substrate, a frame disposed on the substrate, holes provided in the substrate, concave portions provided in positions of the frame facing the holes, and a pair of conductive elastic members provided between the frame and the substrate, each of the conductive elastic members including a large diameter portion inserted in the corresponding concave portion and a small diameter portion inserted in the corresponding hole and electrically connected to the large diameter portion, the large diameter portions of the pair of conductive elastic members being electrically connected to the pair of terminal electrodes, respectively, and each of the large diameter portions having one end portion which is in contact with a bottom surface of the concave portion and each of the small diameter portions having one end portion which is disposed to project from the hole of the substrate.

Disclosed herein is a vertical cavity surface emitting laser device. The laser device comprises a semiconductor lower mirror layer, a first semiconductor electrode layer, a gain-activation layer and a semiconductor anode layer sequentially grown on the compound semiconductor substrate, a re-growth pattern formed on the semiconductor anode layer to a width of 10˜100 μm and an etching depth equal to or less than the semiconductor anode layer by etching, a first anode semiconductor buffer layer grown at a low temperature on the pattern, a second anode semiconductor layer grown at the low temperature for formation of an oxide layer, an anode semiconductor layer for tunnel junction, a cathode semiconductor layer for tunnel junction, a second semiconductor electrode layer for injection of electrons, and an upper mirror layer formed on the second semiconductor electrode layer. With this structure, the laser device comprises an effective electric current confining structure.

A face mask for diving includes a distal edge of a face-contactable section of a skirt attached to a lens frame are made roundly bulge so as to have a substantially circular cross-sectional shape.

An apparatus and method for building a map of probability distribution are provided. The apparatus for building the map of probability distribution includes: a sensor information collector configured to collect sensor information from a plurality of sensors; as object recognizer configured to recognize an object by integrating and inferring the sensor information, and to acquire object information; and a probability distribution creator configured to determine whether to apply an object property model including at least one of kinematic properties, shape properties, and probabilistic properties in correspondence to the object information, to acquire object properties corresponding to the object information, and to create a probability distribution based on foe object properties. Accordingly, it is possible to build a map with high reliability.

The invention is applicable to the field of LEDs, and provides an LED lamp bead, an LED display system and an LED display screen. The LED lamp bead comprises a base, and an LED driving chip, a red light LED chip, a blue light LED chip and a green light LED chip which are mounted on the base; the LED lamp bead is provided with a power input pin VDD which is connected with a power input end VDD of the LED driving chip, a grounding pin GND which is connected with the grounding end GND of the LED driving chip, a first data input pin DIN which is connected with a first data input end DIN of the LEDdriving chip, a second data input pin FDIN which is connected with a second data input end FDIN of the LED driving chip, and a first data output pin DO1 which is connected with a first data output end DO1 of the LED driving chip. The LED display system adopting the LED lamp bead is simple in circuit, does not need peripheral elements, only needs a power supply and a control panel, and is convenient to replace if the LED lamp bead or an LED driving chip is broken.

The invention discloses a light-emitting diode (LED) electrode structure for effectively utilizing current and a manufacturing method thereof. In the LED electrode structure, a partial non-ohmic contact area is formed below an LED electrode. The method for manufacturing the LED electrode structure comprises the following steps of: manufacturing an ohmic contact layer on an LED tube core, removing a partial non-ohmic contact layer at a position, at which the electrode is to be manufactured, on the ohmic contact layer, removing a photoresist and washing, evaporating and coating a metal electrode layer on the entire ohmic contact layer including the removed part by the conventional method, and removing a part of metal electrode layer outside an electrode pattern to be manufactured by corroding; and alloying to form ohmic contact on the remaining ohmic contact layer. The LED electrode structure has the advantages of reducing blocked light, increasing effective utilization of current and improving luminous efficiency. The manufacturing method has the advantages of simple operation, easy implementation, high reliability and stability and wide application range.

The invention discloses an engine rotational inertia measuring device. The engine rotational inertia measuring device comprises a machine body, a driving mechanism, a belt transmission assembly and aconnecting flange connected with an output end flange of an engine to be measured; the machine body comprises two adjacently arranged bases and three supporting seats; the driving mechanism comprisesa motor and a reducer which are connected in a transmission mode, and is placed on the bases and the supporting seats; the belt transmission assembly comprises a belt transmission mechanism, a belt tensioning mechanism and two rotating shafts, the two rotating shafts can be rotatably connected with two belt pulleys and the belt tensioning mechanism through four bearings, the first rotating shaft is coaxially and fixedly connected with the output end of the reducer, and the second rotating shaft is fixedly disposed at the center of the connecting flange. The power output by the driving mechanism can be transmitted to the output end flange of the engine to be measured under the action of the belt transmission assembly, and by measuring the change conditions of the rotational speed torque ofan engine output shaft, the rotational inertia of the engine to be measured can be accurately measured. The engine rotational inertia measuring device has a compact structure, convenient assembly anddisassembly, high practicability and convenient popularization and use.

An organic thin film transistor (OTFT), a method of manufacturing the same, and a biosensor using the OTFT are provided. The OTFT includes a gate electrode, a gate insulating layer, source and drain electrodes, and an organic semiconductor layer disposed on a substrate and further includes an interface layer formed between the gate insulating layer and the organic semiconductor layer by a sol-gel process. The gate insulating layer is formed of an organic polymer, and the interface layer is formed of an inorganic material. The OTFT employs the interface layer interposed between the gate insulating layer and the organic semiconductor layer so that the gate insulating layer can be protected from the exterior and adhesion of the gate insulating layer with the organic semiconductor layer can be improved, thereby increasing driving stability. Also, since the OTFT can use a plastic substrate, the manufacture of the OTFT is inexpensive so that the OTFT can be used as a disposable biosensor.