30results about How to "Effective miniaturization" patented technology

The invention discloses an inner zoom lens, which comprises a first lens group with a positive refractive index, a second lens group with a negative refractive index, a third lens group with a positive refractive index, and a fourth lens group with a positive refractive index in sequence on an optical axis from an object to an image, wherein the first lens group for receiving light is fixed. Whena focal distance of the inner zoom lens changes from a wide angle end to a telephoto end, the second lens group moves towards the image, and the third lens group moves towards the object in order to increase spacing between the first and the second lens groups and shorten spacing between the second and the third lens groups. The fourth lens group moves in the process of focusing, can function as a compensation system in the process of zooming, and moves independently to perform a focusing action after moving together with the second and third lens groups simultaneously to perform a zooming action in order to compensate the movement of an imaging surface caused by zooming. The inner zoom lens disclosed by the invention has the characteristics of high optical zoom and large aperture, and can meet the requirements of short optical total length, good imaging performance, low manufacture cost and the like.

The invention provides a portable nano-particle counter based on a dynamic light scattering method, which detects and counts particles with particle sizes less than 1 micrometre in an air flow more quickly and accurately, ensures the detection efficiency and data processing accuracy, and therefore identifies pollution sources. The portable nano-particle counter can successfully identify harmful gas migration, and leakage problems of some office facilities, workshops and the like with pollution problems, and is applicable to detection of movable and fixed locations.

Disclosed are a synchronous motor having reduced torque pulsation while having a high torque and a system for driving a synchronous motor. Specifically disclosed is a synchronous motor which comprises a rotor (2) and a stator(3), and U-phase windings (91; 91a, 91b, and the like), V-phase windings (92; 92ab and the like), and W-phase windings (93; 93ac and the like) are wound around stator yoke portions each located between two adjacent stator teeth (7; 7a, 7ab, and the like). Each of the windings is wound in predetermined turns and in a predetermined direction such that timing differences between the timings at which a magnetic field generated at each of the stator teeth is maximized and those at which portions (10, 11, 11, and the like) between magnetic poles pass the stator teeth while the rotor (2) rotates, the timing differences being caused by a difference between the interval between the magnetic poles and that between the stator teeth, are compensated.

The invention provides a foam maker which effectively generates foaming elements to produce friction slice shaped foam blocks and can rapidly and conveniently perform coating activities. The foam maker comprises a foam making container (1) in a foam generating part (4), a stirring body (2) generated by the foam generating elements, a support (3) of a stirring gesture supporting the stirring body (2). The stirring body (2) comprises a brush (20) containing the foaming elements, a housing (21) acting as a handle and supporting the brush (20) and a driving structure to drive the housing and the brush. The stirring body can be detached and installed according to the foam container. The brush (20) comprises a base (60) supported by the main housing (21) and a brush beam (61) installed on the brush (60). The front end of the brush beam (61) is provided with a retaining convex part (78) to maintain the foaming elements.

The invention discloses a novel electromagnetic type vibration isolator with the adjustable negative stiffness. The novel electromagnetic type vibration isolator comprises a stator shell (5), a mover(8) and a positive stiffness component, wherein the positive stiffness component is assembled below the mover (8) and plays a positive stiffness role for the mover (8). The novel electromagnetic typevibration isolator further comprises permanent magnets (9) arranged on the first layer and permanent magnets (9) arranged on the second layer, wherein the permanent magnets (9) are assembled on the outer side wall of the mover (8) and arranged in the longitudinal axis direction of the mover (8). The facing direction of the polarity end face of a permanent magnetic field formed by the permanent magnets (9) arranged on the first layer and the permanent magnets (9) arranged on the second layer is the radial direction, and the permanent magnets (9) arranged on the first layer and the permanent magnets (9) arranged on the second layer are opposite in polarity. The novel electromagnetic type vibration isolator further comprises a coil assembly, wherein the coil assembly is assembled on the innerside wall of the stator shell (5). The coil assembly comprises a coil (3) and coil yokes (10), wherein the winding axis of the coil (3) is the longitudinal axis, and the coil yokes (10) are arrangedat an upper coil opening and a lower coil opening of the coil. The vibration isolator is arranged based on the electromagnetic acting force among the permanent magnets and electromagnets.

The invention relates to a small universal sequence omnibus bar device which comprises a printed circuit board component, a plurality of conducting wires and a single molding outer casing. The printed circuit board component comprises: a printed circuit board which comprises a printed circuit board handle part and a printed circuit board plug part and is provided with a first surface and a second surface opposite to each other; a plurality of metal contact points which are arranged on the first surface of the printed circuit board plug part; at least a driven element which is fixed on the second surface of the printed circuit board handle part; at least an integrated circuit grain which is not packaged and is fixed on the second surface of the printed circuit board handle part. Therefore, the small universal sequence omnibus bar device has uniform thickness.

PURPOSE: Provided are a container for a fuel cell which can accommodate an electrolyte member, is compact and strong, and can allow gas to be distributed uniformly and temperature to be gradient uniformly, a fuel cell containing the container for portable electronic device, and an electronic tool containing the fuel cell. CONSTITUTION: The container comprises a base body which comprises a ceramic a concave part accommodating an electrolyte member having first and second electrodes at one and the other main faces, at the one side; a first fluid channel which is formed from the bottom face of the concave part facing the one main face of the electrolyte member to the outer face of the base body; a first wire conductor whose one end is located at the bottom face of the concave part facing the first electrode of the electrolyte member and whose the other end is drawn to the outside of the base body; a cover body which is installed by covering the one side of the environment of the concave part of the base body with the concave part and seals tightly the concave part; a second fluid channel which is formed from the one side of the cover body facing the other main face of the electrolyte member to the outer face of the cover body; a second wire conductor whose one end is located at the one face of the cover body facing the second electrode of the electrolyte member and whose the other end is drawn to the outside of the cover body; and a porous body which is located at the base body or the cover body so as to cover one of the first and second fluid channels where an oxidizing gas is supplied.

The invention provides a printing paste used in the absorption of an electrode scale and for manufacturing a laminated ceramic electronic component. The invention is characterized in that the printing paste is used together with a ceramic plate which contains the butyral resin or the acrylic resin and has a thickness of less than 5Mum and contains ceramic powder and organic paint vehicle, wherein, the solvent of the organic paint vehicle contains a aliphatic hydrocarbon which is selected form one or more of the isobornyl acrylate, the isoamyl butyrate and the isobornyl isobutyrate and a carbon atomicity ranging from 5 to 40. The invention provides the printing paste used in the absorption of an electrode scale and for manufacturing a laminated ceramic electronic component. When the ceramic plate becomes thinner, even in the temperature (for example 40-90 DEG C) for the drying of the solvent, the sheet can be effectively prevented from being eroded, so the case in the room temperature does not need to be mentioned.

The present invention relates to a film capacitor. The capacitor element of this film capacitor is constituted, by winding a belt-like first insulating layer, a belt-like first metal layer, a belt-like second insulating layer, a belt-like second metal layer. The second metal layer is seperated into at least two parts and the gap between them is adjusted to 1-50 m/m and the lead-out jionts are fitted at the terminals.

The invention discloses a microchip array optical assembly with an ultraviolet light-transmitting substrate, which comprises an ultraviolet light-transmitting array substrate, a microchip array, a shading part and a transparent protection unit, wherein the ultraviolet light-transmitting array substrate is provided with a light-transmitting substrate body and a group of driving circuit units, the light-transmitting substrate body is used for allowing part of ultraviolet excitation light with specific wavelength to penetrate through, and is provided with a setting surface for setting the driving circuit units and a bottom surface opposite to the setting surface; the microchip array can block the ultraviolet exciting light and comprises a plurality of microchips which are arranged at intervals by a gap and are respectively driven by the driving circuit units, each microchip is used for emitting and/or receiving at least one piece of light, and each microchip can block the penetration of the ultraviolet exciting light; the shading part is filled in the gap; and the transparent protection unit covers the microchip array and the driving circuit units and is used for sealing the microchip array on the ultraviolet-transmitting array substrate in an airtight manner. In addition, the invention further discloses a manufacturing method of the microchip array optical assembly with the ultraviolet light transmitting substrate.

The invention discloses a common-mode signal filter which comprises a nonmagnetic insulating base plate, a coil laminated structure, an insulating layer and a magnetic material layer. The common-mode signal filter is characterized in that the coil laminated structure is arranged on the nonmagnetic insulating base plate, wherein the coil laminated structure comprises a first coil and a second coil, the first coil and the second coil are coupled to remove common-mode noise together, the magnetic material layer covers on the coil laminated structure through the insulating layer, the total line length L (mm) and the line width W (mm) of one of the first coil and the second coil are satisfied with a relational expression below: L/W is greater than [(14.1-fc)/6.5]2 but less than [(16.7-fc)/4.5]2, wherein fc(MHz) is a cut-off frequency of a different-mode signal.