47results about How to "Shorten physical length" patented technology

A high performance zoom lens system suitable for use with a camera is disclosed. The zoom lens systems employs redirection of the radiation axis, liquid optics and a movable lens group to provide optical performance over the zoom focal length range at focus distances from close to infinity. The system also provides compensation for undesirable thermally induced effects by adjustments of the zoom group and the variably shaped optical surface in the liquid lens cell.

The subject invention relates to beam control prisms and the use of a beam control prism to modify the beam properties of light emitted from an edge emitting diode laser. The subject invention can utilize a beam control prism placed next to a diode laser bar. The subject beam control prism can have, for example, a curved surface and/or a high reflective coated surface for a diode laser wavelength. The curved surface can collimate the fast axis divergence and the mirror surface can change the beam direction. The subject curved surface beam control prisms can incorporate one or more features, such as parabolic reflecting surface, elliptical exit surface with flat reflecting surface, and a hyperbolic entrance surface with flat reflecting surface.

Systems and methods for wirelessly sending signals through the earth between transmitting and receiving antennas are disclosed, wherein the communicating antennas are of the types that generate significant far field radiation and may interact substantially through the emission and absorption of electromagnetic radiation in addition to magnetic coupling. Frequencies are typically chosen which may be much higher than those conventionally used for through-the-earth (TTE) communications. In many situations where TTE communication is desired, the electromagnetic coupling and associated magnetic coupling produced and utilized by these certain types of antennas provide greater effective communications ranges when compared with the ranges that are obtainable with antennas interacting predominately by magnetic coupling alone.

In one aspect of the present invention, a portable radio (1) is provided with: a casing (2); a cover (3) attached to casing (2) so as to be freely opened and closed; a dipole antenna (5) attached to cover (3); an open-close detection means (7) for detecting the opening/closing of cover (3); a power supply means (4a, 4b, 6a, 6b) for supplying power to dipole antenna (5); and a power supply control means (8) for controlling power supply means (4a, 4b, 6a, 6b) based upon the opening/closing of cover (3). In another aspect thereof, the portable radio (1) is provided with a resonator (9) installed in casing (2), and resonator (9) is placed at a position close to dipole antenna (5) when cover (3) is closed. In still another aspect thereof, in response to the opening/closing of cover (3), first and second matching circuits (12, 13), power supply means (6) and dipole antenna (5) are switched and connected. <IMAGE>

The invention relates to a self-suction pipeline mixing reactor, which solves the problems of low mixing efficiency, short effective reaction time and large volume of the reactor. The self-suction pipeline mixing reactor comprises a suction segment 1 and a mixing segment 2 along a fluid flow direction in order; wherein the suction segment 1 comprises a fluid inlet pipeline 3, a suction chamber segment 4 and an expansion segment 5. The fluid inlet pipeline 3 stretches into the suction chamber segment 4, the end is contracted to a conical shape; a suction flow pipeline 6 is provided on the pipe wall of the suction chamber segment 4, and a fluid distributor 7 is provided on the end of the suction flow pipeline 6 deeply stretches into the suction chamber segment 4; a diversion baffle plate is provided on the pipe wall of the mixing segment 2; the axis of the fluid inlet pipeline 3, the suction chamber segment 4, the expansion segment 5 and the mixing segment 2 are superposed along the fluid flow direction. The technical scheme better solves the problems, and the self-suction pipeline mixing reactor can be used in an industrial production for treating waste water from the medicines production.

The present invention relates to a ground circuit in a low-energy system, said ground circuit comprising a connection pipeline (3), collection pipe system (2) and a return pipeline (4) for circulating a transfer fluid. The ground circuit is utilized for transferring thermal energy recovered from its surroundings, for instance, to a heat pump (5) or the like. The present ground circuit collection pipe system (2) is characterized by consisting of a hollow profile (6) arranged to be a coil, whereby the hollow profile is connected at its first end to a connection pipeline (3) for conveying the transfer fluid along the hollow profile from the first coil end to the second, and at the second end of the coil the second end of the hollow profile is connected to the return pipeline (4) for conveying the transfer fluid from the hollow profile towards the place where used. At the opposite ends of this hollow profile there are advantageously arranged means for controlling the fluid flow provided therein.

The invention provides a tunable narrow-linewidth DUV (Deep Ultra Violet) laser, which comprises a pump laser for outputting pump laser light, a first beam splitter for dividing the pump laser light into first pump laser light and second pump laser light, a pulsed tunable narrow-linewidth oscillator comprising a first titanium sapphire crystal, a multi-pass amplifier comprising a second titanium sapphire crystal, and a frequency converter, wherein the first pump laser light enters the pulsed tunable narrow-linewidth oscillator and outputs a tunable seed laser with a wavelength of 780nm-820nm, and the tunable seed laser delays 100-150ns than the pump laser light; the second pump laser light enters the second titanium sapphire crystal, and the multi-pass amplifier is used for power-amplifying the tunable seed laser entering the multi-pass amplifier and outputting tunable fundamental frequency laser light; the frequency converter is used for quadrupling the tunable fundamental frequency laser light to obtain tunable DUV laser light with a wavelength of 195nm-205nm. The pump laser provided by the invention has a small number and a low cost, and can be used in various application occasions.

A portable terminal with an antenna for receiving broadcast signals, includes an antenna module having a chip antenna patterned on a dielectric chip so as to define a physical length of the antenna module that enables the chip antenna to operate within a broadcast band, and a conductive plate connected to the chip antenna and having an area such that conductive plate leads a main radiation of the antenna module on the broadcast band, whereby the physical length of the antenna module can be reduced as short as possible by employing the chip antenna. Accordingly, the chip antenna facilitates making the antenna module and the portable terminal be smaller in size. Also, the chip antenna is configured to lead a main radiation on the conductive plate, thereby increasing radio reception quality and improving radio performance.

To provide a multiband-support radio-frequency module in which the occurrence of a harmonic signal in an amplifier circuit is suppressed and the output of a radio-frequency signal containing unwanted harmonic components is prevented. A first signal path SL1 and a second signal path SL2 are provided such that they intersect each other at least once in a multilayer substrate 2, as viewed from above. With this configuration, high-output radio-frequency signals output from a first amplifier circuit 31 and a second amplifier circuit 32 can be prevented from interfering with other elements disposed in the multilayer substrate 2. It is thus possible to provide a multiband-support radio-frequency module 1 exhibiting excellent RF characteristics by suppressing the occurrence of harmonic signals in each of the first and second amplifier circuits 31 and 32 and by preventing the output of radio-frequency signals containing unwanted harmonic components.

A continuously variable fluent control valve for controlling supersonic flow of gas. The valve has an upper plate with a very slightly angled physical control surface and a lower plate with a physical nozzle inlet. As the valve opens and closes during supersonic flow, a hydrodynamic pintle forms in the nozzle inlet just below the physical control surface. The hydrodynamic pintle provides a fluid control surface for redirecting flow from horizontal fllow to vertical flow through the nozzle and, depending on the expansion needs of the supersonic flow, the hydrodynamic pintle changes shape, expanding or shrinking in the axial direction of the valve. Because of the nearly flat physical control surface of the upper plate, matieral ablation is significantly reduced. The fluid-fluid boundary between the hydrodynamic pintle and the supersonic flow produces a flow through the nozzle with little or no recirculation.

The present invention relates to a monopole antenna comprising: a radiator arranged in the center of a front surface of a dielectric substrate, and including a plurality of loops formed in a structure in which a Mobius strip is cut at least one time along the circumference; a first bridge for sequentially connecting one end of each loop; and a second bridge for connecting via-holes respectively formed at one end of the innermost loop and the outermost loop, thereby obtaining an effect of enabling an antenna, to which a quasi-Mobius strip and a via-hole structure are applied, to be miniaturized.

A compact syringe comprises a cylindrical barrel, a stopper movable within the barrel and a detachable clip-on plunger. The plunger has a resilient c-shaped shaft for clipping onto the barrel's exterior when the syringe is not in use. When in use, the plunger is removed from the barrel and its c-shaped shaft is compressed slightly and then inserted into the rear end of the barrel to apply movement force to the stopper. The clip-on plunger reduces the amount of storage space required by the compact syringe. Reducing syringe storage space is of particular importance for disposable, single-use syringes.

The invention discloses a mobile communication terminal which comprises a shell and a backfire antenna. The backfire antenna comprises a main board, a main antenna unit and a backfire vibrator, wherein the main board is arranged in the shell and is provided with a transmitting circuit and a receiving circuit, the main antenna unit is connected with the transmitting circuit and the receiving circuit of the main board, the backfire vibrator is positioned on one shell side which deviates the head of a mobile communication terminal user and is coupled with the main antenna unit and the main board, and the main board feeds the backfire vibrator from a position which deviates the center of the main board. According to the mobile communication terminal, electromagnetic waves of the mobile communication terminal can radiate towards a direction far from the user, consequently, the electromagnetic radiation for the user in the use state of the mobile communication terminal is reduced, the signal intensity received by a base station can be increased, and consequently, the communication quality is increased, for example, the communication effect is improved.

Disclosed is a matching circuit of a laminated duplexer connected to an antenna terminal while being connected between transmitting and receiving filters to match the transmitting and receiving filters with the antenna terminal, the matching circuit being configured to reduce the physical length of each conductor pattern thereof, thereby being capable of achieving an improved miniaturization thereof. The matching circuit includes a transmitting matching unit constituted by a conductor pattern electrically connected to an antenna electrode connected to the antenna terminal while being electrically connected to the transmitting filter, a first ground electrode vertically spaced apart from the conductor pattern, a receiving matching unit constituted by a conductor pattern electrically connected to the antenna electrode and the receiving filter, and a second ground electrode vertically spaced apart from the conductor pattern of the receiving matching unit. A laminated duplexer provided with the matching circuit is also disclosed. In accordance with the configuration of the matching circuit, it is possible to achieve a reduction in insertion loss, an improvement in the reflection characteristics of an associated antenna, and, thus, an improvement in bandpass characteristics.

A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a countershaft which have an output gear that couple gears of an output shaft such that at least seven power shift forward gears and at least one reverse gear can be shifted, and four gear wheel planes are positioned in a way that at least one power shift winding-path gear can be shifted via the shifting device.

The invention relates to a design of a small-size sample pool reflected for many times for absorbing spectrum measurement. The sample pool comprises two spherical concave-surface reflecting mirrors, one or several light through holes are formed in positions, far away from the center, of each concave-surface reflecting mirror, and the distance between the two concave-surface reflecting mirrors of the sample pool can be adjustable within 30-150% of focus.

A surpercharging unit for an internal combustion engine has a high-pressure turbine which drives a high-pressure compressor so as to perform a rotational movement about a first axis and through which exhaust gas of the internal combustion engine flows, and having a low-pressure turbine which drives a low-pressure compressor so as to perform a rotational movement about a second axis and through which exhaust gas flows. The high-pressure turbine is arranged rotationally conjointly on a first shaft, and the high-pressure compressor is arranged rotationally conjointly on a second shaft, wherein the first and the second shaft are arranged parallel to one another and are arranged offset with respect to one another, wherein the first and the second shaft are mechanically operatively connected to one another such that the high-pressure compressor can be driven by the high-pressure turbine.

The portable type radio unit possesses three portions of part and functions. The first portion includes case, a cover possible to be opened and closed freely installed on the case, a bipolar antenna on the cover, feeder apparatus for feeding the bipolar antenna, and controller for controlling feeder apparatus based on closing or opening state of the cover to control the feeder apparatus. The second portion includes resonator setup on the case. When the cover is closed, the resonator is located near to place of the bipolar antenna. The third portion provides function of switching connection of first or second matching circuit with the feeder apparatus and the bipolar antenna based on closing or opening states.

The invention provides a dual-channel self-detection MEMS microwave power divider and a preparation method thereof. The dual-channel self-detection MEMS microwave power divider comprises a microwave power divider located on a gallium arsenide substrate, a thermoelectric MEMS microwave power sensor and three capacitive MEMS microwave power sensors. The microwave power divider is of a T-shaped symmetrical structure and comprises three ports, and an ACPS signal line is arranged in the middle of the microwave power divider. The thermoelectric MEMS microwave power sensor is located in an annular area formed by the ACPS signal line. Each capacitive MEMS microwave power sensor is connected with one of the ports through a CPW structure. By the capacitive MEMS microwave power sensors and the thermoelectric MEMS microwave power sensor, whether two ports of the MEMS microwave power divider are equally divided into microwave power or not or whether mismatch occurs or not can be detected on line inreal time through the capacitive channel and the thermoelectric channel; and the ratio of the microwave power at the input port to the microwave power at the output port is measured on line, so thatthe real-time on-line power self-detection of the MEMS microwave power divider is realized.

A compact, lightweight, laser target designator uses a TIR bounce geometry to place an end-pumped gain element functionally in the center of the resonator path, thereby allowing the resonator path to be terminated by a pair of crossed Porro prisms, so that the designator produces a high quality beam that is insensitive to alignment and temperature, and is low in manufacturing cost. Some embodiments fold the Porro legs of the resonator path back toward the gain element for compactness. Embodiments use a single gain element as both an oscillator gain element with TIR and as an output amplifier gain element without TIR. Various embodiments use block optical elements in a planar layout on a standard support medium such as aluminum to facilitate automated manufacturing.