42results about How to "Light and compact" patented technology

To conduct a fluid, the transducer has a flow tube which in operation vibrated by an excitation assembly. Inlet-side and outlet-side vibrations of the flow tube are sensed by means of a sensor arrangement. To produce shear forces in the fluid, the flow tube is at least intermittently excited into torsional vibrations about a longitudinal flow-tube axis. An internal portion of the transducer, formed at least by the flow tube, an antivibrator, the sensor arrangement, and the excitation assembly and mounted at least on the inlet and outlet tube sections, has a centroid which is located inside the flow tube. The transducer is suitable for use in viscometers or Coriolis mass flowmeter-viscometers. In spite of using only a single straight flow tube, it is dynamically well balanced in operation, and the development of bending moments by the torsionally vibrating flow tube is largely prevented. This also effectively prevents the transducer case or the connected pipe from being excited into sympathetic vibration. Measurement signals representative of mass flow rate are readily distinguishable from measurement signals representative of viscosity, particularly if the sensors used for the viscosity measurement are also used for the mass flow measurement.

A handling tool for coupling to a cutting guide includes a substantially elongate first end shaped to be grasped by human hand. The tool includes at least two mating tines, disposed at a second end of the tool. The mating tines are biased to move toward each other and are forced apart from each other by a cam portioned therebetween. The mating tines each include a mating means for mating the tool with the cutting guide.

A crane trolley, especially a single-rail trolley with a short overall height, with a traveling mechanism frame (2) having a hoisting mechanism (1), which can travel by running wheels (3, 3a) on a rail, especially a lower flange (4a) of an essentially horizontal beam (4), wherein at least one running wheel (3a) can be driven, and a friction roller (10) interacting with the driven running wheel (3a) is arranged on the underside (4b) of the rail. In order to create a crane trolley that guarantees a reliable reduction in the slippage of the driven running wheel (3a) with a simple design, a pair of friction rollers (10) is provided, which may be positioned against the underside (4b) of the rail by adjusting the spacing from each other via a common pressing mechanism.

A projection apparatus using a spatial light modulator (SLM), comprising the following: at least one variable light source, at least one spatial light modulator for modulating the illumination light emitted from the variable light source in accordance with the modulation state of arrayed pixel elements, a variable light source controller for controlling modulation of the variable light source, and a spatial light modulator controller for controlling modulation of each pixel element of the spatial light modulator, wherein the variable light source controller controls the variable light source so as to reduce the period in which the modulation states of the pixel element are in transition on a display image.

In a glass optical waveguide having a core containing at least one oxide selected from the group of glass-constituting oxides consisting of Bi2O3, Sb2O3, PbO, SnO2 and TeO2, large transmission loss of light which occurs when the cross-sectional shape of the core is rectangle, is reduced. A glass optical waveguide which contains at least total 35% in mass % of at least one type of the above glass-constituting oxides, wherein the cross-sectional shape of the core is trapezoidal, among two parallel sides of the trapezoid, a long side is in a substrate side and among four sides constituting the trapezoid, angles of two oblique sides to the long side are each within a range of from 60 to 80°.

A magnet for MRI apparatus has a magnetic circuit which includes a magnetic flux path formed by a ferromagnetic material and a magnetic flux path formed by magnetic flux return coils or magnetic flux control coils, so that a 5-gauss line of leakage fluxes can be kept within a sphere 3 m in radius even when the static magnetic field intensity exceeds 1 tesla and a comparatively light magnet for MRI apparatus can be provided. Further, the fluxes escaping vertically from the static magnetic field sources are led compactly to a horizontal direction by installing magnetic flux paths of ferromagnetic materials and coils with polarities opposing those of the static magnetic fields. This arrangement minimizes an increase in the total height of the magnet for MRI apparatus, keeping the magnet within the total height of 3 m.

A spool of a spinning reel includes a support member, a spool body, a drag mechanism, a first sealing member, and a second sealing member. The support member is detachably connected to a spool shaft. The spool body includes a housing recess that is frontally open and rotatably attached to the support member. The drag mechanism decelerates the spool body and includes a front friction portion that has a press washer with an inner peripheral surface opposed to an outer peripheral surface of a front portion of the support member. The press washer contacts a drag regulation member. The housing recess accommodates the friction portion. The first sealing member seals a gap created between the inner peripheral surface of the press washer and the outer peripheral surface of the support member. The second sealing member seals the gap created between the outer peripheral surface of the press washer and the housing recess.

The present invention provides an injection mold for forming free-form surface optical element that is possible to produce with high accuracy at low cost a free-form surface optical element that has a stable relation between the free-form surface and the mounting reference surface and is easy to adjust when mounting. The mold comprises a fixed mold and a movable mold for forming a free-form surface (effective area 21) and a rear surface opposite to the free-form surface. The fixed mold and the movable mold are divided by a parting line PL along the peripheral end surface of the free-form surface optical element 14. A mold surface for molding the free-form surface (effective area 21) and a mold surface for molding axial-direction mounting reference surfaces 28a-28c for mounting the free-form surface optical element in a direction substantially perpendicular to the free-form surface are positioned in the mold on the same side with respect to the parting line PL.

An apparatus and method for recording an image using a transfer-type recording mechanism are such that a layer of an intermediate transfer element is removably formed on a surface of an intermediate transfer medium. The intermediate transfer element includes an ultraviolet stabilizer and a powder mixture. The intermediate transfer layer is capable of being dissolved and swelled by applying an ink liquid on the intermediate transfer medium and enables a viscosity of the ink liquid residing thereon to be increased. An image is produced on the intermediate transfer medium by supplying the ink liquid thereon. The image is then transferred to the recording medium, so that a high quality image is produced without any blurring, mixing or penetration of the ink liquid.

First and second separators include first and second metal plates. The first metal plate has first embossed protrusions protruding toward a membrane electrode assembly to form an oxygen-containing gas flow passage. The second metal plate has second embossed protrusions protruding toward another membrane electrode assembly to form a fuel gas flow passage. Further, the second metal plate has third small embossed protrusions protruding toward the first metal plate.

A unitary, one-piece multiple purpose utility tool can be used to perform multiple tasks using the same tool. The present invention provides such a device that, when used properly, allows the user to cut, chop, saw, shovel, among other things, while maintaining the structure of a single-piece tool.

The present invention generally relates to a headrest for vehicles, and more particularly to a headrest for cars which may be easily folded manually or electrically, thereby providing other passengers with a wider prospect. A headrest of the present invention comprises a pivotable housing member comprising a pair of housing halves and rotatably coupled to the horizontal portion of the stay rod, a ratchet member fixed to the horizontal portion of the stay rod adjoining the inner side wall of one of the housing halves, a return spring wound around the horizontal portion of the stay rod between the ratchet member and the other of the housing halves, a check member pivotably arranged above the ratchet member to engage with or be disengaged from the ratchet member and keep the upright position of the pivotable housing member when the ratchet member engages with the check member, a check spring for maintaining the engagement of the ratchet member with the check member, a release member for disengaging the check member from the ratchet member.

The invention relates to a device shielding especially an electronic unit with a transmitter, such as a mobile phone, against electromagnetic radiation. The device includes a crystal and an winding / spiral, where the winding / spiral is wound with the crystal arranged in the middle. One end of the winding extends immediately adjacent the antenna of the electronic unit. The device includes also a second winding of ferromagnetic material and a metallic film.

An optical guide for a near-eye display device includes a first guide element having a light input zone and a second guide element having an output zone. The first guide element is superimposed on the second guide element. The optical guide also includes an optical coupling system between the first guide element and the second guide element, and the first and second guide elements have, on the first part of their length, a mutual spacing so as to delimit a thin layer of air between said guide elements extending between a first longitudinal end of the guide elements and the optical coupling system. The optical coupling system, located at a second longitudinal end of the first and second guide elements, includes a single-piece portion of the guide elements, associated with an optical reflection member to propagate the beams of light from the input zone toward the output zone.

In an inverter generator having a winding wound around a generator unit driven by an engine, a converter connected to the winding and adapted to convert an alternating current outputted from the winding to a direct current, an inverter connected to the converter and adapted to invert the direct current outputted from the converter to an alternating current and output it, and a controller adapted to control operations of the converter and the inverter, a battery is connected to the engine, and the winding includes a first winding and a second winding, such that the controller supplies an output of the battery to one of the first winding and the second winding to rotate the generator unit to start the engine.

The present invention relates to a pickup truck or similar vehicle comprising a cargo area, furthermore comprising a passenger compartment with a roof, the cargo area being located behind the passenger compartment in the direction of travel, wherein the cargo area comprises lateral boundaries and wherein the cargo area has a covering element. It is provided that the covering element comprises a tent, wherein the tent can be inflated or unfolded.

It is an object of the invention to provide an improved lighting device, which may compensate a pressure drop occurring. Thereto, the invention provides a lighting device (10) comprising a housing (11) and a bag (15) made of a bag material; wherein the housing (11) comprises a light source (23) and a light exit window (22) for outputting light of the light source (23) to the exterior; wherein the housing (11) has a housing volume (12) filled with air (13) having a housing pressure (14); wherein the bag (15) is gastightly sealed (17) with a bag material, and is filled with a bag fluid (16), and is contained within the housing volume (12); wherein the bag (15) is configured to expand for reducing the housing volume (12) and for thereby compensating a pressure drop in the housing pressure (14) of the air (13).

A transmission unit for a vehicle driven by muscle power. The transmission unit has one through shaft and one output shaft, as well as at least two sub-transmissions and at least one intermediate shaft. In the transmission unit at least one of the intermediate shafts and the output shaft is formed as a hollow shaft which is arranged coaxially to another shaft of the transmission unit.

Apparatus for servicing a structure comprises a frame for assembly around the structure, the frame having least one pair of first and second arms pivotally attached at proximal ends thereof to the frame and carrying respective rotating members arranged to contact the structure and driveable to move the frame along the structure.

The object is to provide an optical system with a wavelength selecting device. According to one aspect of the present invention, an optical system with a wavelength selecting device includes, in order from an object along an optical axis, an objective optical system composed of optical elements having refractive power and an aperture stop, a no-power optical group composed of optical elements having no refractive power, and an imaging device. The no-power optical group includes the wavelength selecting device for making short wavelength light be selectively substantially non-transparent. The wavelength selecting device preferably satisfies the predetermined conditional expressions.