382results about How to "Reduce size and weight" patented technology

An iris authentication apparatus includes a camera for obtaining the image of an eye; a display panel arranged on the same plane as where the lens of the camera is arranged; and guide character generation means, wherein a guide character is displayed on a display panel, and the eye of a person to be authenticated who watches the guide character is guided. As a result, a satisfactory iris image can be obtained by the iris authentication apparatus of one camera type that does not have a zooming function, so that the iris authentication apparatus that can be mounted to a small body, such as a portable telephone, can be provided.

An automatic sample analyzer includes: a pipette, a pipette driving device which moves the pipette to a sample vessel present in a predetermined position to cause the pipette to suck up a sample from the sample vessel, and then moves the pipette to an open vessel provided in another predetermined position to cause the pipette to discharge the sample into the open vessel, and an analyzing section for analyzing the discharged sample, the pipette driving device comprising a vertically movable main arm and an elongated guide arm cantilevered by the main arm and extending horizontally, the guide arm having a smaller flexural rigidity than the main arm, wherein the main arm vertically moves the pipette when the sample is to be sucked up from the sample vessel, and the guide arm guides the pipette to the open vessel and then vertically moves the pipette when the sample is to be discharged into the open vessel.

A portable proximity alarm apparatus comprising a Bluetooth system and an alarm monitors the presence of a portable electronic device equipped with a compatible transceiver within range and alarms when that device leaves its range. On detecting disconnection, the proximity alarm automatically tries to reconnect. A portable proximity alarm apparatus with an optional voice mode allows for listening to a monitored device and/or to send voice to a monitored device. A proximity alarm device particularly suitable for monitoring persons and animals comprises a base device having a Bluetooth transceiver that can pair with a monitored device having a Bluetooth transceiver. The base device has a lower frequency receiver and the monitored device has a lower frequency transmitter, optionally the base has a lower frequency transmitter and the monitored device has a lower frequency receiver. The lower frequency is less than 1 GHz and preferably 433 MHz. The lower frequency transmitter and receivers are activated when the base and monitored devices are paired and the Bluetooth transceivers enter a sleep or low power usage mode, such as sniff, park, and hold. In an embodiment, the lower frequency transmitter and/or receiver has an adjustable range.

During use, a plate-form part 5 which is constructed from an optical material and which corresponds to a spectacle lens is positioned in front of the eye of the user which is disposed in the vicinity of the exit pupil P of an image combiner 1. The combiner 1 causes light from an image display element 2 to be superimposed on light that is transmitted through the plate-form part 5 so as to pass through the thickness of the plate-form part 5 from the front of the plate-form part 5, and conducts this light to the eye. The light from the image display element 2 reaches the eye of the user after being diffracted and reflected by a reflective type HOE 6 inside the plate-form part 5. The wavelength at which the diffraction efficiency shows a maximum value when the chief rays that are emitted from the center of the display part of the image display element 2 are diffracted and reflected by the reflective type HOE 6 and the wavelength at which the diffraction efficiency shows a maximum value when the chief rays that are emitted from the peripheral portions of the display part in a specified direction are diffracted and reflected by the reflective type HOE 6 are substantially different. As a result, it is possible to improve the image quality of the display images that are obtained in cases where the center of the pupil of the eye of the user deviates from the center of the exit pupil of the image combiner.

A foldable portable terminal unit containing a picture taking device capable of transmitting both image and voice. The unit enables users to see the display when taking pictures of themselves, as well as taking pictures of other objects. The lid portion (3) folds and rotates with respect to the case main body (2) of the portable terminal unit. The display (6) is provided in the lid portion (3) and rotates with respect to the picture taking device (11) fixed on the rear face or the side face of the case main body (2), corresponding to the state of taking a picture so as to enable monitoring.

A device that adapts a wide range of appliances such as drills, awls, screwdrivers and sockets to use with a multifinctional pocket tool such as a pocket knife or other folding tool. The device firmly attaches the appliances to the multifunctional pocket tool so that the user can pull on the appliance in addition to pushing and turning. The adapter clamps firmly to flat blade such as a screwdriver blade by clamping to the blade with a screw and by forcing the sides of the adapter against the broad sides of the blade as well. The appliance is firmly retained by having a rigid thin rod or ball slide into the cavity in which the appliance is held to block its removal. The rigid thin rod or ball is easily moved out of the way to allow removal of the appliance.

This invention relates to a substrate integrated waveguide prism-like horn antenna including a medium base board, in which, two rows of metal posts are set on the medium base board and form a substrate integrated rectangular waveguide and a H-side horn section connected mutually, an arc radiation side connected with the medium base board is set on two walls of the opening of the H-side horn section and the horn mouth, the two rows of metal posts are connected with micro-band feed lines composed of a line of 50Ohm and a transformation taper, and the waveguide and the up and down surfaces of the medium base board are metals.

Portable x-ray devices and methods for using such devices are described. The devices have an x-ray tube powered by an integrated power system. The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have an integrated display component. With these components, the size and weight of the x-ray devices can be reduced, and the portability of the devices enhanced. Thus, the portable x-ray devices are especially useful for applications where portability is an important feature such as in field work, remote operations, and mobile operations such nursing homes, home healthcare, teaching classrooms. This portability feature can be particularly useful in multi-suite medical and dental offices where a single x-ray device can be used in multiple offices instead of single using an x-ray device in each office.

A device executing a start-up control method for an electric scroll compressor has a thermistor (18) and a pressure sensor (20) which, prior to the start-up of the scroll compression unit, detect temperature and pressure of a suction refrigerant introduced into the compression unit (2), and a controller (10) for controlling driving of a motor (4) of the compression unit (2) at the start-up of the compressor. The controller (10) determines at the start-up of the compressor whether or not a liquid refrigerant exists in the compression unit (2) on the basis of the detected temperature and pressure; selects either a normal start-up mode or a liquid-discharge mode in which the rotational speed of the motor (4) is regulated to be lower than in the normal start-up mode, according to the determination result; and controls the start-up of the compression unit (2) through the motor (4) according to the selected mode.

An evaporator with a cool storage function includes flat refrigerant flow tubes and flat cool storage material containers each brazed to one side surface of the corresponding refrigerant flow tube. A plurality of sets each composed of refrigerant flow tubes and a cool storage material container are disposed such that they are spaced from one another. A fin is disposed in an air-passing clearance between adjacent sets, and is joined to the corresponding refrigerant flow tubes and the corresponding cool storage material container. Front portions of the cool storage material containers and the fins project frontward from the refrigerant flow tubes, and an internal-volume-increasing portion, whose container height is greater than that of the container body portion, is provided at the frontward projecting portion of each cool storage material container. Fins are brazed to opposite side surfaces of the internal-volume-increasing portion of each cool storage material container.

A head-mountable apparatus mountable on a head of an observer comprises a first pressing member which presses a first portion of the head; a second pressing member which presses a second portion of the head; and adjustment unit adapted to move the first pressing member and the second pressing member to positions where the first pressing member and the second pressing member respectively press the first portion and the second portion.

The invention discloses a peripheral component interconnect (PCI) Express-based multiband infrared image real-time acquisition system and a PCI Express-based multiband infrared image real-time acquisition method. The system comprises an embedded host with a PCI Express x8 channel and a real-time image acquisition card, wherein the real-time image acquisition card comprises a field programmable gate array (FPGA) chip, a high-speed caching double data rate 2 synchronous dynamic random access memory (DDR2SDRAM), differential I/O interfaces connected with a multiband infrared detector and a PCI Express x8 card insertion part. The acquisition method for the system comprises that: the FPGA chip of the acquisition card simultaneously reads multiband infrared image data from the differential I/O interfaces, caches the read multiband infrared image data into the DDR2SDRAM, performs PCI Express bus bandwidth allocation after finishing acquiring an image frame, transmitting the data of the image frame to the host by a PCI Express x8 bus for real-time display and storage, and simultaneously caches the acquired data of the next image frame. The invention has the advantage of integrating a plurality of infrared band data discrete acquisition systems to form the multipath, high-speed, synchronous and real-time acquisition system which is miniature and highly portable.

The invention relates to a seabed observation network node platform comprising a box body in which a photoelectricity separating device, a wiring board, a high-voltage power supply cavity, a low-voltage power supply cavity and control system cavity, wherein the photoelectricity separating device is connected with a coast base station, an electric signal output end and an optical signal output endof the photoelectricity separating device are correspondingly connected with the input ends of a high-voltage wet plugging assembly and an optical fiber wet plugging assembly, the output ends of the high-voltage wet plugging assembly and the optical fiber wet plugging assembly are respectively connected with the low-voltage power supply cavity and the control system cavity, and the control systemcavity is in communication connection with seabed external equipment through an external equipment wet plugging assembly; the output end of the high-voltage power supply cavity is connected with the input end of the low-voltage power supply cavity, and the output end of the low-voltage power supply cavity is connected a power source input end of the control system cavity which is internally provided with a communication control system for data communication with the seabed external equipment and a power source management system. The invention can provide continuous power energy for the seabedexternal equipment and realizes the real-time and continuous communication between the coast base station and the seabed external equipment.

There is provided a transaction terminal device including: a housing; a frame panel that is attached to the housing; a plurality of electrodes that is provided on a board disposed within the housing; a switch member that is inserted into a penetrating hole formed in the housing, and includes a conductor which electrically connects the plurality of electrodes and an elastic deformer which maintains an electrically connected state in which the conductor is in contact with the electrodes by urging force due to elastic deformation in a state in which the frame panel is attached to the housing; and a tamper detector that detects tampering through the releasing of the electrically connected state of the plurality of electrodes due to the detachment of the frame panel from the housing. A waterproof portion that prevents water from infiltrating into the penetrating hole is provided at the switch member.

The invention provides a displacement amplifying type 2D electro-hydraulic proportional directional valve. The displacement amplifying type 2D electro-hydraulic proportional directional valve is that the right end of the 2D valve is fixedly connected with a bidirectional electric-mechanical conversion device through a roller type pressing torsion coupling and a pin; a wedge-shaped part is in contact with a central shaft through a roller; a right sensitive cavity is formed between a right circular bead at the end part a valve element, an end cover of the pressing torsion coupling and a valve body; a left sensitive cavity is formed between a left circular bead at the end part of the valve element, a left piston ring and the valve body; high pressure holes are formed in the circular beads at the end parts and are communicated with a P opening through inner holes of the valve element; low pressure holes are formed in the end part of the valve element and directly communicated with the T opening; sensitive channels of which the diameter is in a form of a semicircular section are formed in the upper two ends of the inner hole wall of the valve body; the sensitive channels are respectively communicated with the left sensitive cavity and the right sensitive cavity; the high and low pressure holes in the circular beads in two ends of the valve element are intersected with the sensitive channels to form two micro opening areas which are connected in series to form hydraulic resistance half axles; pressure of the sensitive cavities in two ends is respectively controlled by the hydraulic resistance half axles at two ends.

In a liquid crystal display device using LEDs emitting a plurality of colors as the light sources, diffusion materials are dispersed in a light guide plate. The light guide plate is used to guide and mix the plurality of colors with one another. The diffusion materials are made of a material having optical characteristics, such as a refractive index, different from those of a base material of the light guide plate.

The invention relates to the generation of electricity from flowing fluid and in the preferred embodiment to a horizontal axis turbine and generator assembly. The present invention is applicable to water turbines and the invention is described in relation to this application. It is however to be appreciated that it is applicable to wind turbines. The present invention provides turbine generator for generating electrical power from flowing fluid comprising a rotatable hub having an external surface and a rotational axis arranged, in use, parallel to the direction of the flow, a plurality of blades mounted on the external surface of the hub and extending radially outwards from the hub; a plurality of magnets mounted on a surface inside the rotatable hub said surface arranged to rotate with the rotatable hub thereby forming a rotor of an electrical generator, and a plurality of non-rotating coils fixed to a stationary cylindrical core within the periphery of the rotatable hub, said coils and core thereby forming a stator of the electrical generator.

Portable x-ray devices and methods for using such devices are described. The devices have an x-ray tube powered by an integrated power system. The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have an integrated display component. With these components, the size and weight of the x-ray devices can be reduced and the portability of the devices enhanced. The x-ray devices also have an x-ray detecting means that is not structurally attached to the device and therefore is free standing. Consequently, the x-ray devices can also be used as a digital x-ray camera. The portable x-ray devices are especially useful for applications where portability is an important feature such as in field work, remote operations, and mobile operations such as nursing homes, home healthcare, or teaching classrooms. This portability feature can be particularly useful in multi-suite medical and dental offices where a single x-ray device can be used as a digital x-ray camera in multiple offices instead of requiring a separate device in every office.

A number of fluidic-photonic devices for allowing optical detection, systems employing such devices, and related methods of operation and fabrication of such devices are disclosed herein. In at least some embodiments, the devices can serve as flow cytometry devices and/or employ microfiuidic channels. Also, in at least some embodiments, the devices are fluidic-photonic integrated circuit (FPIC) devices that employ both fluidic channels and one or more waveguides capable of receiving and/or delivering light, and that can be fabricated using polymeric materials. The fluidic-photonic devices in at least some embodiments are capable of functionality such as on-chip excitation, time-of-flight measurement, and can experience enhanced fluorescence detection sensitivity. In at least some embodiments, the devices employ detection waveguides that are joined by way of a waveguide demultiplexer. In additional embodiments, a variety of techniques can be used to process information received via the waveguides, including an iterative cross-correlation process.

Disclosed is a stationary type imaging apparatus reduced in size and in weight. The imaging apparatus includes an imaging unit 4 for imaging an object and a casing 5 carrying the imaging unit 4 and also carrying a component mounting unit 36 on its bottom for mounting component parts of the imaging apparatus. On the component mounting unit 36, a first wiring board 37 is provided for extending along a bottom plate of the casing 5, and a second wiring board 38 is provided for extending towards the imaging unit 4 in a state separated from the first wiring board 37.

The invention relates to a micro-displacement optical testing method and a micro-displacement optical testing device, in particular to a micro-displacement micro-strain testing method and a micro-displacement micro-strain testing device, which adopts the following steps: 1. taking a lever and a projection plane; 2. taking one point on a short arm of the lever as the input end of the micro-displacement, inputting the micro-displacement to be tested from the input end of the micro-displacement, using a light spot displacement measuring device to measure the displacement value of the light spot after enlarging the lever, and gaining the micro-displacement to be tested through the calculation. The invention uses the following devices which comprises the light spot displacement measuring device and the lever, wherein the lever is arranged on a support and takes one point on the short arm of the lever as the input end of the micro-displacement to be tested, a long arm of the lever is provided with a laser, the frontage of the laser is provided with the projection plane for displaying the displacement of the light spot, and the light spot displacement measuring device is used to gain the displacement of the light spot emitted by the laser and calculate the micro-displacement. The invention realizes the purpose of simplifying the structure and making the testing process conveniently operated.

The invention relates to moisture-absorption polyamide-6 fiber and the manufacturing method. The invention utilizes a special-shaped spinning plate to produce the polyamide-6 fiber with a cross type cross section, the fiber of the invention has good moisture-absorption function, simultaneously, the invention also overcomes the default of the prior art for producing polyamide-6 fiber, and provides a manufacturing technology of high product qualification ratio.

A low pass filter includes a differential mode filter and a common mode filter. The common mode portion of the filter includes at least one inductor and one capacitor, as well as a damping circuit with at least one capacitor. The low pass filter has a reduced weight, which is useful in circumstances in which weight is a significant factor, such as in aircraft.

The invention proposes a novel DC power electronic transformer topology having automatic fault removal capability. A DC power electronic transformer is mainly applicable to the following occasions, ina first occasion, voltage conversion between a medium- and high-voltage DC bus and a low-voltage DC bus is performed, and in a second occasion, voltage conversion between different medium- and high-voltage buses is performed. With the novel DC power electronic transformer topology structure proposed by the invention, the numbers of cascaded DC/DC converters are reduced under the condition that the voltage stress of a switch device is enabled not to be changed, the numbers of transformers and switch devices are reduced, so that the volume and the weight of the DC power electronic transformer are further reduced; with the novel DC power electronic transformer topology structure proposed by the invention, soft switch can be achieved, the DC conversion efficiency is improved; and with the novel DC power electronic transformer topology structure proposed by the invention, automatic fault removal of a unit module can be achieved, and a DC contactor is not needed to removal a fault from a fault unit module.

The present invention provides a low-temperature transportation technology without water of live sturgeon; the transported live sturgeons are not fed for 2 to 3 days and put into water with a temperature of 1 to 2 Celsius degrees for precooling for 10 to 15 minutes; and then the sturgeons are put into an insulation box in which a seal bag is laid; the air in the seal bag is extruded and the seal bag is tied tightly after oxygen is infused; after the insulation box is sealed, the sturgeons can be transported and the transportation time is less than or equal to 18 hours. Compared with the prior art, sturgeon is a sub-cold water fish which has a low temperature resistant nature and the method makes use of the nature to freeze the sturgeons for transportation without water; in this way, the volume and weight of fish transportation tools are greatly reduced and at the same time the transportation cost is reduced which is convenient for vehicle or aviation transportation. The transportation time can reach 18 to 20 hours and the survival rate in transportation can reach more than 99 percent.

In a substrate stage device, a substrate is held by a substrate support member mounted on a Y step surface plate. The substrate support member moves in the scanning direction in long strokes on the Y step surface plate. The part corresponding to an exposure area of the substrate is held by suction in a non-contact manner from below by a fixed point stage, and other parts are supported by levitation by the plurality of air floating devices placed on the Y step surface plate. The part corresponding to the exposure area of the substrate is controlled so that surface position of the substrate is located in the depth of focus of the projection optical system by the fixed point stage.

The invention discloses a portable miniature ground mobile workstation for an unmanned aerial vehicle and aims at accomplishing the task planning of the unmanned aerial vehicle, displaying the position and the flight path of the unmanned aerial vehicle on an electronic map in real time, performing the functions of transmitting, displaying and processing the flight state data of the unmanned aerial vehicle in real time and ensuring the flight accuracy and safety of the unmanned aerial vehicle. The workstation consists of an upper box body, a display screen, a switch, a touchpad, a lower box body, an elastic clasp, a handle, a radio modem, a rocker rod, a keypad, a butterfly hinge, a power supply module and an industrial computer. With the mobile workstation disclosed by the invention, the work of receiving, monitoring and displaying remotely measured data of the unmanned aerial vehicle in real time and sending remote control data can be accomplished by one person.

The invention relates to a multi-level converter employing a multi-winding intermediate-high frequency transformer. The multi-level converter comprises a voltage current measuring unit, wherein the voltage current measuring unit is connected between two ends of a power grid in parallel; the voltage current measuring unit sends a measured voltage current signal of the power grid to a control unit; a current signal output by the power grid is filtered and current-limited by an inducer and then is input in a H-bridge rectifier; the H-bridge rectifier converts the input alternating current into the direct current with stable amplitude according to the control signal sent by the control unit; the output end of the H-bridge rectifier is connected with a plurality of inverters; the output ends of the inverters are connected the input end of the multi-winding intermediate-high frequency transformer; the output end of the multi-winding intermediate-high frequency transformer is connected with a load converter through a plurality of rectifiers; a voltage current measuring module, all inverters and all rectifiers perform information interaction with the control unit; and the load converter supplies power to the load under the control of the control unit. The cost of the multi-level converter in the invention is saved; the size and the weight of the multi-level converter are reduced; and the multi-level converter can be widely applied in an electrical system and electric traction.

The invention discloses a dexterous hand driven by shape memory alloy. The dexterous hand comprises three fingers which are structurally consistent, a palm and a control system. Each finger is composed of distal knuckle bone, a middle knuckle bone and a proximal knuckle bone. Bending and stretching of one whole finger are achieved by finger joints, side sway of the fingers is achieved by the joints among the proximal finger bones, and bending and stretching of the distal knuckle bones are achieved by the joints among the distal finger bones. The three fingers have nine joint freedom degrees totally, and each joint is driven forwardly and reversely by a swinging mechanism composed of two shape memory alloy metal wires. The control system comprises a Windows PC (personal computer), a real-time controller, an I/O (input/output) module, a drive circuit and an angular sensor. The shape memory alloy metal wires are internally disposed in the fingers and the palm of the dexterous hand to directly drive the finger joints, and accordingly a medium drive mechanism is omitted. The dexterous hand is simple and compact in structure, small in size and light in weight and is suitable for being used as an end actuator of a mechanical arm which is light in load to implement dexterous grabbing and precision operation of objects different in shape and size.

The blood pressure measuring device comprises a main device 1, and a separate device 2 capable of being used separately from the main device 1. The main device and the separate device have a wireless communication means 11 and 12, respectively. At least one device of the main device and the separate device has a power switch, and one device having the power switch is activated when the power switch is operated, and then the one device transmits a start signal to the other device by the wireless communication. The other device shifts periodically from a power-off state to a power-on state on its own when in the power-off state to check the start signal, and it is activated if it receives the start signal when it shifts to the power-on state. The one device transmits the start signal continuously over a period longer than a period during which the power switch is operated to activate the one device.