132results about How to "Small-sized" patented technology

An antenna comprises a dielectric member, an antenna pattern formed on one surface of the dielectric member, and a ground pattern formed on the other surface of the dielectric member. A part or the whole of the antenna is implanted in a dielectric layer on the side from which a laser beam does not come in of an optical recording medium symmetrically having a metal layer reflecting the laser beam and the dielectric layer, thereby to provide a radio tag antenna structure for an optical recording medium which is simple, is small-sized, and can secure necessary reading performance.

A component separating device includes a substrate, a fluid channel provided at the substrate, an actuator and a groove provided at a surrounding of the actuator, the fluid channel contains a fluid including a liquid component and a solid component, and the actuator generates a standing wave at inside of the fluid channel. By such a constitution, a vibration loss is reduced by reflecting a vibration by the groove to be transmitted to a side of the fluid channel, the standing wave having a strong intensity is generated at inside of the fluid channel, and the small-sized highly accurate component separating device is provided.

An image pickup apparatus is provided having first and second image pickup portions for receiving at least first and second distinct wavelength components of object light, respectively, and first and second optical systems for guiding the first and second wavelength components to the first and second image pickup portions, respectively, via different optical paths. The first and second optical systems are formed to have respective shapes so that the focal length of the first optical system with regard to the first wavelength component is equal to the focal length of the second optical system with regard to the second wavelength component. When a virtual object distance, as defined as set forth herein, an interval between optical axes of the first and second optical systems is set such that a change in an interval between object images of the first and second wavelength components received by the first and second image pickup portions, respectively, between when an object exists at the virtual object distance and when it exists at infinity is smaller than a pixel pitch of the image pickup portions multiplied by two.

An image sensing apparatus senses an image by illuminating a document by a light source including three light emitting diodes which emit light of red, green, and blue so that the light reflected from the document is incident on a sensor array which in turn generates an electric signal corresponding to the incident light, wherein a predetermined light emitting diode is also turned on during a period in which no image sensing operation is performed thereby making it possible to stabilize the intensity of light illuminating an image. Thus, the invention provides a high-performance and small-sized image sensing apparatus at a low cost.

There is provided a piezoelectric device for generating an acoustic signal in which an expansion mechanism expands a disposition of a laminated piezoelectric actuator by the principle of leverage. The mass of a base member placed in the expansion mechanism is larger than the mass of a vibration output member. An overall device size is small. The piezoelectric device has a pressurization structure for reducing a tractive force acting on the laminated piezoelectric actuator which is generated by the amplification. This enables provision of a piezoelectric device for generating an acoustic signal that is a small size, highly resistant to dropping impact, and has god acoustic performance with less sound leakage.

An object of the present invention is to provide an antenna of small size which is excellent in the response characteristic in the high-frequency band, and to provide a communication device including the antenna having such an excellent characteristic that it is possible to realize downsizing of the device as a whole. That is, the present invention is directed to an antenna characterized by including a radiator made up of a carbon nanotube, and as a specific structure, for example, an antenna characterized by including an electrode that is connected with a part of the carbon nanotube and operates as a monopole antenna, and a communication device including the antenna.

A light source apparatus which can improve efficiency in generating light from a light-emitting device is provided.A light source apparatus 10 includes a substrate 1 having a pair of electrodes 2, 3, a light-emitting device 4 and a transparent resin 7 for sealing the light-emitting device 4, in which a white resist layer 6 is formed on the substrate 1, the white resist layer 6 is formed to cover part of the electrodes 2, 3, the white resist layer 6 includes an opening portion formed on at least the light-emitting device 4, near the light-emitting device and terminals of the electrodes 2, 3, and a white member for controlling a shape of the transparent resin 7 is formed on the white resist layer 6.

An imaging lens consists of negative first lens having a concave image-side surface, positive second lens, negative third lens, positive fourth lens, positive fifth lens having a convex image-side surface, and negative sixth lens, which are in this order from an object side. In the imaging lens, all of the lenses constituting the lens system are single lenses, which are not cemented lenses, and a stop is arranged closer to the object side than an image-side surface of the fourth lens is arranged. When a refractive index of a material of the third lens for d-line is Nd3, the following formula (1-1) is satisfied:Nd3<1.65  (1-1).

An electromagnetic vibrational diaphragm pump comprising an electromagnet portion having an electromagnet arranged in a frame, a vibrator which is supported in the electromagnet portion and equipped with a magnet, diaphragms with a large diameter and diaphragms with a small diameter which are successively connected with both ends of the vibrator, and the pump casing portions of the diaphragms with a large diameter and diaphragms with a small diameter which are fixed on the both end portions of the electromagnet portion, wherein the left and right pump casing portions have pump chambers respectively corresponding to the diaphragms with a large diameter and diaphragms with a small diameter. Medium pressure (about 50 to 200 kPa) can be generated.

A solid oxide fuel cell stack in which first and second cell plates are alternately stacked. The first cell plates comprises a substrate having a plurality of opening portions, a groove which extends through the plurality of opening portions formed on a lower surface of the substrate, a solid electrolyte layer which covers the opening portion formed on an upper surface of the substrate, a fuel electrode layer which covers the opening portions formed on the solid electrolyte layer, and an air electrode layer formed on the lower surface of the substrate so as to extend along the opening portions and the groove. The second cell plates has a structure in which the air electrode layer is replaced with the fuel electrode layer in the first cell plate. In this fuel cell stack, the air electrode layer of the first cell plate faces the air electrode layer of the second cell plate, and the fuel electrode layer of the first cell plate faces the fuel electrode layer of the second cell plate. A method of manufacturing the solid oxide fuel cell stack comprises preparing the first cell plate, preparing the second cell plate, alternately stacking the first and second cell plates, and collectively sintering the stacked first and second cell plates.

An image reading apparatus includes a plurality of light sources to illuminate a document; an illumination optical system to guide light to a reading target area having a length and a width; a document illuminating device to illuminate the entire document; an image forming optical system to form an image from light reflected from the document; and a sensor provided in an image forming section of the image forming optical system to read the image of the document. The illumination optical system includes a concentration section to control light diffusion, and a reflection section. The reflection section includes at least two integrally configured reflection surfaces, in which a sine value of an angle of reflected light from at least one reflection surface is positive, while a sine value of an angle of reflected light from the rest of at least one reflection surface is negative.

Provided are a cooling device coated with carbon nanotubes and method of manufacturing the same. Carbon nanotubes are dispersively coated on a surface of the cooling device that radiates generated by a predetermined apparatus or component through thermal exchange. Thus, a carbon nanotube structure is formed so that the cooling device can improve in a thermal radiation characteristic and become small-sized. As a result, electronic devices can be downscaled and heat generated by a highly integrated electronic circuit chip can be effectively radiated, thus increasing lifetime and performance of an operating circuit.

A switching device which can be small-sized by improving a shielding performance and can improve the reliability of switching characteristics. A permanent magnet disposed near stationary contacts is arranged in its pole-face perpendicularly of the axis of a moving contact member.

A portable measurement apparatus is presented for inducing and measuring fluorescent X-ray radiation. It comprises an X-ray source (303, 902, 1005, 1105) adapted to controllably irradiate a sample (301, 803) with X-rays, and a detector (305, 406, 1006, 1106) adapted to detect fluorescent radiation emitted by said sample (301, 803). The X-ray source (303, 902, 1005, 1105) is an X-ray tube, an anode of which comprises at least one of silver, rhodium and molybdenium. Consequently said X-ray tube is adapted to controllably emit L-line radiation of at least one of silver, rhodium and molybdenium.

A power supply circuit for a gate driving circuit for driving semiconductor switching devices of a power converter that is configured to perform a DC to AC conversion. The power supply circuit includes a DC power supply including a plurality of serially-connected single DC power supplies, a flying capacitor type power conversion circuit including a plurality of flying capacitors connected in parallel to a plurality of the semiconductor switching devices, and a plurality of serially-connected circuits each having an insulating device, a middle part of the series-connected circuits being connected to a middle potential point of the flying capacitors, and to a fixed potential point of the DC power supply.

An antenna comprises a dielectric member, an antenna pattern formed on one surface of the dielectric member, and a ground pattern formed on the other surface of the dielectric member. A part or the whole of the antenna is implanted in a dielectric layer on the side from which a laser beam does not come in of an optical recording medium symmetrically having a metal layer reflecting the laser beam and the dielectric layer, thereby to provide a radio tag antenna structure for an optical recording medium which is simple, is small-sized, and can secure necessary reading performance.

Provided is a camera module that is capable of driving with low power consumption and is small-sized and thin even in a case of having high resolution. A movable portion (4) provided in a lens driving device (9) of a camera module (20) has a shape that covers an upper side of a fixed lens (1b) and at least a part of a side part (side surface) of the fixed lens (1b).

A fruit and vegetable peeler which is suitably used in general homes for peeling a small amount of fruits and vegetables, which is small-sized and light-weight, and which is further convenient in carrying and storage. A pair of clamp members are supported by a housing to lie in opposed relation, and a handle is fixed to a handle shaft extended externally of the housing. The housing accommodates a speed increasing gear mechanism for transmitting rotation of the handle shaft to a cup-shaped rotating blade, a transmission gear mechanism for transmitting the rotation of the handle shaft to the rotary shaft of the clamp member, and a rotating-blade swinging mechanism for converting the rotation of the handle shaft into a swing motion of the rotating blade along the circumference of a fruit / vegetable. The housing, a support frame for supporting the speed increasing gear mechanism, the transmission gear mechanism, and the rotating-blade swinging mechanism, and gears constituting those mechanisms are made of synthetic resin.

The present invention aims to provide a motor-mounted internal gear pump that is small-sized, less expensive and has high reliability, while utilizing a function of an internal gear pump that is suitable for high head. A motor-mounted internal gear pump has a pump section for sucking and discharging a liquid and a motor section for driving the same. The pump section has an internal rotor having teeth formed around its outer periphery, an external rotor having teeth formed around its inner periphery and a pump casing that accommodates both rotors and has a suction port for sucking a liquid and a discharge port for discharging a liquid. The motor section has a can that composes a part of the pump casing and formed of anon-magnetic material into a thin plate, a rotator arranged at the inside of the can for driving the external rotor or the internal rotor; and a stator arranged at the outside of the can for rotating the rotator.

A small-sized filter unit of a simple structure, as well as an X-ray tube unit and an X-ray imaging system both having the filter unit, are implemented, A filter unit in a first aspect of the present invention comprises a filter plate, the filter plate having a first filter, a second filter disposed in a first direction with respect to the first filter and a third filter disposed in a second direction having a predetermined angle from the first direction with respect to the first filter, a guide plate having a guide frame for movement of the filter plate in the first and second directions, and a drive device for moving the filter plate.

A small-sized filter unit of a simple structure, as well as an X-ray tube unit and an X-ray imaging system both having the filter unit, are implemented. A filter unit in a first aspect of the present invention comprises a filter plate, the filter plate having a first filter, a second filter disposed in a first direction with respect to the first filter and a third filter disposed in a second direction having a predetermined angle from the first direction with respect to the first filter, a guide plate having a guide frame for movement of the filter plate in the first and second directions, and a drive device for moving the filter plate.

A portable measurement apparatus is presented for inducing and measuring fluorescent X-ray radiation. It comprises an X-ray source (303, 902, 1005, 1105) adapted to controllably irradiate a sample (301, 803) with X-rays, and a detector (305, 406, 1006, 1106) adapted to detect fluorescent radiation emitted by said sample (301, 803). The X-ray source (303, 902, 1005, 1105) is an X-ray tube, an anode of which comprises at least one of silver, rhodium and molybdenium. Consequently said X-ray tube is adapted to controllably emit L-line radiation of at least one of silver, rhodium and molybdenium.

The present invention relates to a static magnetic field applying structure for use in an atomic oscillator in which plural sets of magnetic field generating means are provided with spacing interposed among them, and a resonance cell is disposed in a space between the magnetic field generating means. The object of the present invention is to realize the static magnetic field applying structure which can be small-sized and produced at a low cost.

A fruit and vegetable peeler which is suitably used in general homes for peeling a small amount of fruits and vegetables, which is small-sized and light-weight, and which is further convenient in carrying and storage. A pair of clamp members are supported by a housing to lie in opposed relation, and a handle is fixed to a handle shaft extended externally of the housing. The housing accommodates a speed increasing gear mechanism for transmitting rotation of the handle shaft to a cup-shaped rotating blade, a transmission gear mechanism for transmitting the rotation of the handle shaft to the rotary shaft of the clamp member, and a rotating-blade swinging mechanism for converting the rotation of the handle shaft into a swing motion of the rotating blade along the circumference of a fruit / vegetable. The housing, a support frame for supporting the speed increasing gear mechanism, the transmission gear mechanism, and the rotating-blade swinging mechanism, and gears constituting those mechanisms are made of synthetic resin.

An air valve comprising: an inflow opening through which air flows in; an outflow opening through which the entered air flows out; and an actuator having an elastomer or polymer that can expand and contract when supplied with a voltage and an electrode for applying a voltage on the elastomer or polymer, wherein an outflow route from the inflow opening to the outflow opening is opened and closed by driving the actuator.

According to the present invention, an electromagnetic encoder includes a number of scale coils arranged on a scale along a measuring direction; and transmitting coils and receiving coils arranged on a grid to be movable relative to the scale in the measuring direction, in which a relative movement amount between the scale and the grid is detected based on variation in magnetic flux detected by the receiving coils via the scale coils at the time of exciting the transmitting coils, and the receiving coils are provided in the measuring direction to be a plurality of sets, one of the sets of the receiving coils being displaced by a ½ phase of a scale pitch relative to the other set of the receiving coils.