71results about How to "Keep small" patented technology

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.

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.

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.

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.

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.

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.

The invention discloses a double-shaft pivot mechanism and a relevant portable electronic device. The double-shaft pivot mechanism is used for enabling a first shell body to rotate relative to a second shell body, the double-shaft pivot mechanism comprises at least one fixing member, a rotating shaft, a first main tooth wheel, a second rotating shaft, a second main tooth wheel and a transmitting tooth wheel group. The fixing member comprises a first zone and a second zone, the first rotating shaft and a second rotating shaft are respectively arranged on the first zone and the second zone of the fixing member and are respectively connected with the first shell body and the second shell body, the first main tooth wheel and the second main tooth wheel are respectively arranged on the first rotating shaft and the second rotating shaft, and the transmitting tooth wheel group is engaged with the first main tooth wheel and the second main tooth wheel; when the first main tooth wheel rotates along a first direction, the second main tooth wheel rotates synchronously along a second direction opposite to the first direction.

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.

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.

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.

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.

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.

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.

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.

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 (f_R) of the series resonant circuit (2) is not reached even at a high fill level.

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.