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71results about How to "Keep small" patented technology
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Optical lens system for taking image
An optical lens system for taking image has, in order from the object side to the image side: a positive first lens element with a convex object-side surface; a negative plastic second lens element with a concave object-side surface; a negative plastic third lens element with a concave object-side surface; a positive fourth lens element with a concave image-side surface; and an aperture stop located between an object to be photographed and the second lens element. The second lens element is provided with at least one aspheric surface, the third lens element is provided with at least one aspheric surface, and the fourth lens element is formed with inflection points. An on-axis distance between the first and second lens elements is T12, a focal length of the optical lens system for taking image is f, they satisfy the relation: (T12 / f)*100>0.7.
Owner:LARGAN PRECISION
Optical lens system for taking image
An optical lens system for taking image comprises, in order from the object side to the image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element with negative refractive power; a third lens element with positive refractive power having a concave object-side surface and a convex image-side surface; a fourth lens element with positive refractive power; a fifth lens element with refractive power; and an aperture stop located between an object to be photographed and the second lens element. In the optical lens system for taking image, the number of the lens elements with refractive power being limited to five. Such lens arrangements can effectively reduce the volume of the optical lens system, reduce the sensitivity of the optical lens system and obtain higher resolution.
Owner:LARGAN PRECISION
Optical Lens System for Taking Image
An optical lens system for taking image comprises, in order from the object side to the image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element with negative refractive power; a third lens element with positive refractive power having a concave object-side surface and a convex image-side surface; a fourth lens element with positive refractive power; a fifth lens element with refractive power; and an aperture stop located between an object to be photographed and the second lens element. In the optical lens system for taking image, the number of the lens elements with refractive power being limited to five. Such lens arrangements can effectively reduce the volume of the optical lens system, reduce the sensitivity of the optical lens system and obtain higher resolution.
Owner:LARGAN PRECISION
Photographing optical lens assembly
The present invention provides a photographing optical lens assembly comprising, in order from the object side to the image side: a first lens element with positive refractive power having a convex object-side surface and a concave image-side surface, the object-side and image-side surfaces thereof being aspheric; a second lens element with negative refractive power having a concave object-side surface and a convex image-side surface, the object-side and image-side surfaces thereof being aspheric; and an aperture stop located in front of the first lens element; wherein an Abbe number of the first lens element is V1, an Abbe number of the second lens element is V2, and they satisfy the relation: |V1−V2|<15; and wherein the number of the lens elements of the photographing optical lens assembly is limited to two. Such an arrangement of optical elements can effectively reduce the volume of the lens assembly and the sensitivity of the optical system and enable the lens assembly to obtain a higher resolution.
Owner:LARGAN PRECISION
Optical lens system for taking image
An optical lens system for taking image comprises, in order from the object side to the image side: an aperture stop; a first lens element with positive refractive power having a convex object-side surface and a convex image-side surface; a plastic second lens element with negative refractive power having a concave object-side surface, a convex image-side surface and at least one aspheric surface; a plastic third lens element with negative refractive power having a convex object-side surface, a concave image-side surface and at least one aspheric surface. The number of the lens elements with refractive power being limited to three. Focal lengths of the optical lens system, the first lens element, the second lens element and the third lens element are f, f1, f2, f3 respectively; Abbe numbers of the first and second lens elements are V1, V2 respectively, an on-axis distance between second and third lens elements is T23, and they satisfy the relations: 0.8<f / f1<1.8; 0<|f / f2|<0.8; 0<|f / f3|<0.7; 20<V1−V2<38; 0.13<T23 / f<0.21.
Owner:LARGAN PRECISION
Fuel injection system for internal combustion engines
InactiveUS6915785B2High notch tensionForces of deformation operative in the control valve can be kept slightMachines/enginesFuel injecting pumpsCombustionEngineering
A fuel injection system for internal combustion engines having a fuel injection valve communicating with a high-pressure source includes a control valve, which has a valve body with a longitudinally displaceably guided control piston. The control piston is guided in a bush, which is surrounded at least partly inside the valve body by an annular chamber, which communicates with the high-pressure source.
Owner:ROBERT BOSCH GMBH
Capsule endoscope, capsule endoscopic inspection method, and capsule endoscopic inspection device
InactiveUS20170360283A1Efficient power receptionPower reception efficiencyTelevision system detailsTransformersTransceiverX-ray
A capsule endoscope according to one embodiment includes: a camera; a transceiver; a tubular receiving coil for receiving power supplied from an external power transmitting antenna via magnetic flux; a tubular capsule accommodating these components; and an X-ray marker to be used in location and orientation detection. In the capsule endoscope, a magnetic body is arranged along the inner periphery of the receiving coil, and a self-propelling drive device including an electromagnet and a permanent magnet is arranged in series with the receiving coil along the tubular axial direction of the capsule so that the permanent magnet does not enter the inside of the receiving coil.
Owner:PIOLAX CO LTD +1
Start-Up Circuit and Method for a Self-Biased Zero-Temperature-Coefficient Current Reference
ActiveUS20090295360A1Efficient implementationEfficiently realizableElectric variable regulationElectrical resistance and conductanceReference circuit
A current reference circuit is disclosed. A small startup current is defined as the base current into a bipolar transistor with its collector-emitter path connected in series with a resistor between the power supply voltage and ground. This startup current is conducted via a diode-connected MOS transistor in a first leg of a current mirror. Temperature compensation is maintained by a reference leg in the current mirror that includes a bipolar transistor having an emitter area N times larger than that of a bipolar transistor in a second leg of the current mirror, to establish a temperature-compensated current in the reference leg. A compensation capacitor connected between the collector and base of a bipolar transistor in the first leg suppresses oscillation, and can be modest in size due to the Miller effect.
Owner:TEXAS INSTR INC
Optical Lens System for Taking Image
An optical lens system for taking image comprises, in order from the object side to the image side: an aperture stop; a first lens element with positive refractive power having a convex object-side surface and a convex image-side surface; a plastic second lens element with negative refractive power having a concave object-side surface, a convex image-side surface and at least one aspheric surface; a plastic third lens element with negative refractive power having a convex object-side surface, a concave image-side surface and at least one aspheric surface. The number of the lens elements with refractive power being limited to three. Focal lengths of the optical lens system, the first lens element, the second lens element and the third lens element are f, f1, f2, f3 respectively; Abbe numbers of the first and second lens elements are V1, V2 respectively, an on-axis distance between second and third lens elements is T23, and they satisfy the relations: 0.8<f / f1<1.8; 0<|f / f2|<0.8; 0<|f / f3|<0.7; 20<V1−V2<38; 0.13<T23 / f<0.21.
Owner:LARGAN PRECISION
Mixer tap
InactiveUS20070028974A1Less bendingAvoid interferenceOperating means/releasing devices for valvesDomestic plumbingActuatorVALVE PORT
A mixer tap assembly is shown which has a mixing chamber for mixing fluids from two inputs, and a mix controller to control the ratio of fluid flow into the mixing chamber from the inputs. The mix controller includes a mix actuator which operates a mix control apparatus, such as a rotatable sleeve, which is connected to a mix valve apparatus associated with the mixing chamber. The mix actuator and a fluid outlet are mountable on or above a work surface via a mounting apparatus, while the mixing chamber is mountable below the work surface. Furthermore, the mix control apparatus and an output conduit, between the fluid outlet and the mixing chamber, pass through a bore in the mounting means, so minimising the footprint of the mixer tap assembly on the work surface.
Owner:HORNBEAM IVY
Optical scanning device and image forming apparatus using the same
InactiveUS7034859B2Produced in advanceSimple structureInking apparatusOther printing apparatusOptical axisLight beam
Disclosed is an optical scanning device which includes a light source device, a deflecting system for deflecting a light beam emitted from the light source device, and a scanning optical system for scanning a surface to be scanned, with the light beam deflected by the deflecting system, wherein the scanning optical system includes a scanning optical element disposed so that, with respect to a sub-scan direction, a principal ray of the deflected light beam passes a portion other than an optical axis, wherein the scanning optical element has a sagittal aspherical amount changing surface in which an aspherical amount of a sagittal changes along a main scan direction of the scanning optical element, and wherein, throughout the whole surface to be scanned, the position in the sub-scan direction upon which the deflected light beam impinges is made even.
Owner:CANON KK
Mixer tap
InactiveUS7607449B2Keep smallMore aesthetically pleasingOperating means/releasing devices for valvesDomestic plumbingActuatorMixing chamber
A mixer tap assembly is shown which has a mixing chamber for mixing fluids from two inputs, and a mix controller to control the ratio of fluid flow into the mixing chamber from the inputs. The mix controller includes a mix actuator which operates a mix control apparatus, such as a rotatable sleeve, which is connected to a mix valve apparatus associated with the mixing chamber. The mix actuator and a fluid outlet are mountable on or above a work surface via a mounting apparatus, while the mixing chamber is mountable below the work surface. Furthermore, the mix control apparatus and an output conduit, between the fluid outlet and the mixing chamber, pass through a bore in the mounting means, so minimizing the footprint of the mixer tap assembly on the work surface.
Owner:HORNBEAM IVY
Optical Lens System for Taking Image
An optical lens system for taking image comprises, in order from the object side to the image side: a first lens element with positive refractive power has a convex object-side surface; a plastic second lens element with negative refractive power has a concave object-side surface and is provided with at least one aspheric surface; a plastic third lens element with negative refractive power has a concave object-side surface and is provided with at least one aspheric surface; a fourth lens element with positive refractive power has a concave image-side surface and is formed with inflection points; and an aperture stop is located between an object to be photographed and the second lens element. An on-axis distance between the first and second lens elements is T12, a focal length of the optical lens system for taking image is f, they satisfy the relation: (T12 / f)*100>0.7.
Owner:LARGAN PRECISION
Hand-Held Power Tool with a Vibration-Damped Handle
InactiveUS20080283261A1Keep smallCost-favorable designConstructionsReciprocating drilling machinesCouplingHand held
The invention relates to a hand tool machine (2), in particular a drilling and / or percussion hammer, with a housing (4) and a vibration-damped handle (10) elastically supported relative to the housing (4) with two essentially parallel legs (20, 22) and a coupling element (44 or 46) between each leg (20 or 22) and the housing (4) that is pin-jointed to the leg (20 or 22) and the housing (4). The coupling elements (44, 46) are connected to each other by a connector (48) that synchronizes the movements of the coupling elements (44, 46).
Owner:ROBERT BOSCH GMBH
Coil component
ActiveUS20180166199A1Improve performanceAdditional componentTransportation and packagingTransformers/inductances coils/windings/connectionsElectrical conductorEngineering
A coil component includes a magnetic body part and a coil part. The magnetic body part has first and second magnetic layers stacked together alternately in one axis direction, and cover parts covering the first and second magnetic layers from the one axis direction. The coil part has conductor patterns provided on the second magnetic layers. The magnetic body part includes: oblate soft magnetic grain-containing layers extending over the entire range of the magnetic body part in the direction perpendicular to the one axis direction, exposed in the direction perpendicular to the one axis direction, and formed by oblate soft magnetic grains whose thickness direction is oriented in the one axis direction; and spherical grain-containing layers adjoining the oblate soft magnetic grain-containing layers in the one axis direction, and formed by insulative spherical grains.
Owner:TAIYO YUDEN KK
Double-shaft pivot mechanism and relevant portable electronic device
ActiveCN104514801AKeep it smallAvoid damageDetails for portable computersPivotal connectionsEngineeringMechanical engineering
Owner:WISTRON CORP
Hand-held power tool with a vibration-damped handle
InactiveUS8061438B2Shorten the lengthKeep smallReciprocating drilling machinesConstructionsCouplingHand held
Owner:ROBERT BOSCH GMBH
Portable terminal
InactiveUS7200428B2Avoid breakingKeep smallWing accessoriesStands/trestlesHigh availabilityMiniaturization
To improve usability while maintaining miniaturization, in a portable terminal device in which one end part of a first housing having an operating part and one end part of a second housing having a display part are turnably connected by a hinge part, an open state where the surface of the display part and the surface of the operating part are opened at a predetermined angle is formed by turning the first housing or the second housing by the hinge part from a close state where the first housing and the second housing are overlapped with each other and the operating part surface and the display part surface are facing to the same direction, and the hinge part has tilt angle changing means that is tiltably supported to the first housing or the second housing and can change the angle in the open state.
Owner:SONY ERICSSON MOBILE COMM JAPAN INC
Image capturing lens system
This disclosure provides an image capturing lens system, in order from an object side to an image side comprising: a first lens element with positive refractive power having a convex object-side surface and a concave image-side surface; a second lens element with positive refractive power; a third lens element with positive refractive power; and a fourth lens element with positive refractive power having a convex object-side surface, a concave at a paraxial region and convex at a peripheral region image-side surface, and both of the object-side and image-side surfaces thereof being aspheric. By arranging the four lens elements with refractive power, the refractive power can be applied on the four lens elements in a uniform manner, so as to reduce the sensitivity of the radius of curvature, and the thickness of the center or the like to produce an aberrance to improve the qualified rate of the production.
Owner:LARGAN PRECISION
Image forming apparatus
ActiveUS20180039198A1Maintaining miniaturizationEasy transferElectrographic process apparatusPower flowControl signal
An image forming apparatus includes a voltage adjustment portion having a voltage adjustment member connected to a contact member contacting an endless belt, the voltage adjustment portion changing a current flowing from a current supply member contacting the belt at a position different from a position, at which an image bearing member contacts the belt in a rotating direction of the belt, to the voltage adjustment member via the belt according to a control signal input from a control portion outputting a control signal, thereby changing a size of a transfer potential—a surface potential—to transfer a toner image borne by the image bearing member onto the belt at a part at which the belt contacts the image bearing member.
Owner:CANON KK
Start-up circuit and method for a self-biased zero-temperature-coefficient current reference
ActiveUS7915882B2Efficient implementationEfficiently realizableElectric variable regulationElectrical resistance and conductanceReference circuit
A current reference circuit is disclosed. A small startup current is defined as the base current into a bipolar transistor with its collector-emitter path connected in series with a resistor between the power supply voltage and ground. This startup current is conducted via a diode-connected MOS transistor in a first leg of a current mirror. Temperature compensation is maintained by a reference leg in the current mirror that includes a bipolar transistor having an emitter area N times larger than that of a bipolar transistor in a second leg of the current mirror, to establish a temperature-compensated current in the reference leg. A compensation capacitor connected between the collector and base of a bipolar transistor in the first leg suppresses oscillation, and can be modest in size due to the Miller effect.
Owner:TEXAS INSTR INC
Optical Lens System for Taking Image
An optical lens system for taking image comprises, in order from the object side to the image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element with negative refractive power having a concave image-side surface and an object-side surface cemented to an image-side surface of the first lens element; a third lens element with negative refractive power; a fourth lens element with positive refractive power having a concave image-side surface and at least one inflection point; and an aperture stop located between an object to be photographed and the third lens element. In the optical lens system for taking image, the number of the lens elements with refractive power being limited to four. A focal length of the optical lens system for taking image is f, a focal length of the first lens element is f1, they satisfy the relation:0.8<f / f1<2.1.
Owner:LARGAN PRECISION
Electric control lock based on shape memory metal wire
PendingCN111472621ALarge displacementReduce displacementNon-mechanical controlsLock casingsGear wheelElectric control
The invention discloses an electric control lock based on a shape memory metal wire. The electric control lock based on the shape memory metal wire includes a shell, a lock tongue telescoping in the shell, a reset piece connected to the end of the lock tongue, and the shape memory metal wire used for driving the electric control lock to unlock; wherein a stroke enlargement piece is arranged between the lock tongue and the shape memory metal wire; and when the shape memory metal wire drives the stroke enlargement piece to generate a displacement, the stroke enlargement piece drives the lock tongue to generate an enlarged displacement. The stroke enlargement piece is not limited to a lever, a gear, and a cam. According to the scheme, the driving force of the shape memory metal wire does notdirectly act on the lock tongue, but acts on the stroke enlargement piece; the stroke enlargement piece obtains a smaller displacement, so that the lock tongue obtains a larger displacement; and therefore, the problem described in the description is solved, and the lock also retains the advantages of being compact.
Owner:SENSOR ELECTRONICS CO LTD
Electrical installation with a cooling element and method for operating said installation
ActiveUS7771114B2High operating requirementsImprove current carrying capacityThermometer detailsCooling bus-bar installationsElectrical conductorCarrying capacity
Owner:HITACHI ENERGY LTD
Thin film balun
ActiveUS8319577B2Good balanceKeep smallMultiple-port networksOne-port networksMiniaturizationBalanced line
Owner:TDK CORPARATION
Vibrator
ActiveUS20170119619A1Small batchEasy to handleVibration massageGenitals massageCommunication unitEngineering
A vibrator including a curved housing adapted to the female anatomy, the housing has a front section; a rear section; an interior section and a fastening section. The interior section has a power source, a control unit, a memory unit for saving data, a communication unit for data communication with an external device and an electric motor for generation of a vibration. The rear section is configured to transmit vibrations generated by the electric motor to the body. Fasteners are included for fastening the vibrator to an article of clothing by a clamping mechanism. The fasteners are removably attached to the fastening section of the housing and are flush with the front section.
Owner:AMOR GUMMIWAREN
Desk suitable to be placed on beds
InactiveCN103704997AWide area of useImprove work efficiencyBed-tablesExtensible tablesEngineeringDesk
The invention relates to a desk suitable to be placed on beds, aiming to solving the problem that existing desks suitable to be placed on beds are too small to meet requirements of patients or persons needing to work on beds. The desk can be placed on the beds conveniently, and different from the desks in the prior art, a drawer plate is added below the tabletop and can be pulled by hands so that the desktop area is expanded. The desk is easy to operate and convenient to use. The area of the desktop is expanded on the premise of keeping the desk light, application range of the desk is expanded, use efficiency of the desk is high, and the conventional desks for being placed on beds are improved to meet high requirements of different people further.
Owner:米振宇
Liquid crystal and metasurface combined continuous zooming super lens
InactiveCN111722423AKeep smallEasy to makeStatic indicating devicesNon-linear opticsEngineeringSingle electrode
The invention relates to the field of imaging and optical information processing, and discloses a design scheme of a lens capable of continuously zooming from a visible light band to an infrared band.The design scheme comprises the steps of designing a superlens with a fixed focal length by utilizing excellent phase modulation capability of a metasurface; additionally arranging a layer of liquidcrystal and a composite layer below the super lens in a clinging manner; providing paraboloid-type voltage for the liquid crystal layer through the composite layer so as to generate paraboloid-type phase modulation in the liquid crystal layer, superposing the phase to the phase of the super lens to jointly determine the focal length of the lens, and changing paraboloid-type phase distribution in the liquid crystal layer by changing the voltage so as to achieve the zooming effect. The invention provides a method for continuously zooming a super lens by adopting a method of combining the super lens and liquid crystal. According to the method, only a single electrode is used on the premise of realizing continuous zooming, the processing complexity is reduced, the advantage of ultra-micro andultra-thin metasurface is maintained structurally, and the super lens is particularly suitable for a mobile phone lens.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Demagnetizing Method
ActiveUS20080197950A1Keep smallOptimal demagnetizationElectromagnets without armaturesRelaysAlternating currentInductance
A method is presented for demagnetizing ferromagnetic components in an alternating field of an externally excited electrical series resonant circuit. A supply voltage having an excitation frequency (f) is applied in parallel to a demagnetization coil having a no-load inductance of the series resonant circuit, because of which an alternating current (I) flows through the series resonant circuit (1), which generates a magnetic alternating field. In the event of suitable selection of the excitation frequency (f) in such a way that the product of the excitation frequency (f) in Hz multiplied by the no-load inductance (L0) in Henry is f*L0≧0.22 Hz*H, the excitation frequency is in an operating range (5) and the series resonant circuit (1) may be used without further regulation technology to demagnetize components which are led through the inner chamber of the demagnetization coil (2) and form a fill level. If the excitation frequency (f) is selected accordingly, continuous operation is possible, in which the resonant frequency (fR) of the series resonant circuit (2) is not reached even at a high fill level.
Owner:MAURER ALBERT
Optical scanning device and image forming apparatus using the same
InactiveUS20060033799A1Increase the number ofProduced in advanceInking apparatusElectrographic processes using charge patternOptical axisImage formation
Disclosed is an optical scanning device which includes a light source device, a deflecting system for deflecting a light beam emitted from the light source device, and a scanning optical system for scanning a surface to be scanned, with the light beam deflected by the deflecting system, wherein the scanning optical system includes a scanning optical element disposed so that, with respect to a sub-scan direction, a principal ray of the deflected light beam passes a portion other than an optical axis, wherein the scanning optical element has a sagittal aspherical amount changing surface in which an aspherical amount of a sagittal changes along a main scan direction of the scanning optical element, and wherein, throughout the whole surface to be scanned, the position in the sub-scan direction upon which the deflected light beam impinges is made even.
Owner:CANON KK
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