81results about How to "Axial position is accurate" patented technology

The invention relates to an ultra-wide-angle high resolution day and night dual-purpose camera lens which is characterized in that a front group (A) with negative focal power and a rear group (B) with positive focal power are respectively arranged along the incident direction from left to right of an optical path, the front group (A) comprises a negative meniscus lens (A-1) and a negative meniscus lens (A-2), the rear group (B) comprises a biconvex lens (B-1), a biconvex lens (B-2) and a cemented group with close connection of a biconvex lens (B-3) and a negative meniscus lens (A-4), and an optical stop (C) is positioned between the biconvex lens (B-1) and the biconvex lens (B-2). The ultra-wide-angle high resolution day and night dual-purpose camera lens has ultra-wide-angle, strong light power, high resolution and wide spectral confocal performance, and can provide a full-interface clear image better than 2 million pixels for a high-resolution network camera system and realize 24-hour continuous monitoring and no shift of an image focus during day-night switching.

The invention relates to a long-wave infrared mechanical passive type athermalized lens. An optical system of the lens sequentially includes, along the incident direction of light from left to right, a lens group front group A with negative focal power and a lens group rear group B with positive focal power. The front group A comprises a crescent lens A-1. The rear group B comprises a concave crescent lens B-1 and a crescent lens B-2 in sequence from left to right. The long-wave infrared mechanical passive type athermalized lens has the advantages of relative large aperture, IP67 waterproof and dustproof performance, low distortion, athermalized compensation, etc. Through the characteristic that material expends with heat and contracts with cold and also through applications of compensation elastic pieces, an athermalizized design structure is simpler, the structure of an entire product is smaller and lighter, the steady imaging of an optical axis is clearer and high in reliability, the requirement of users for the imaging performance of products is met, and the lens is more convenient to use by users in terms of structure.

Disclosed is an electronic card comprising a printed circuit board interposed between card shields having edges. Tabs on an edge of one shield engage recesses on the edge of the other shield. The jointed shields of the card provide high levels of rigidity, sufficient to exceed applicable bending and torsional resistance specification. Adequate rigidity is thereby provided. Also included is an I / O connector grounded without a separate ground contact and shielded over its length. The tabs include an arcuate member having a medial oblique projection which engages a ledge of the other shield near the recess. A frame bar is interposed between the shields. Also included is an "oil can" resistant shield in which a deep-draw recess is peripherally surrounded by a groove.

A balance shaft unit for internal combustion engines consists of at least one balance shaft (6, 7) supported in a balance casing (5) and counterweights (8) connected onto it. In order to achieve maximum precision, reliable fastening and minimum external dimensions at minimum manufacturing costs, the counterweight (8) is essentially a cylindrical ring with two end surfaces (61) normal to the axis and with a cutout (55) in the longitudinally central region, so that the counterweight consists of two ring parts (60, 61) abutting the two end surfaces (61) and an intermediate segmental part (62). One of the end surfaces (61) of the counterweight (8) forms, jointly with a machined surface (33) of the balance casing (5), a thrust bearing (32).

A quick-adjust draw rod positioning nut which is attachable to a machine's chuck and / or de-chuck prime mover via a base portion. The positioning nut includes an engagement portion preferably comprising at least two segments that can be held in a collapsed position, where the segments threadably engage a draw rod, or an expanded position, where the segments are out of engagement with the draw rod, depending on the presence or positioning of a ring. In the collapsed position, the engagement portion can be disengaged from the base to permit rotation of the engagement portion and thereby effecting axial movement of the draw rod in order to achieve proper axial positioning of the draw rod in the machine. The engagement portion can be locked in one of a plurality of incrementally spaced rotational positions to adjust the axial position of the draw rod to a desired position.

The invention relates to a teleconverter for an wide-angle high-magnification zoom lens, wherein a front group A with a negative focal power and a rear group B with a positive focal power are sequentially arranged in the optical system of the teleconverter along the left-to-right incident direction of a light ray; the front lens group A is sequentially provided with a negative meniscus lens A-1 and a biconcave lens A-2, and the lens rear group B is a glued group formed by airtightly connecting a negative meniscus lens B-1 with a biconvex lens B-2; the mechanical structure of the teleconverter comprises a lens cone, a front group installation seat and a rear group installation seat are opened in the lens cone, the front lens group A is placed on the front group installation seat and tightly pressed by a front press ring, the rear lens group B is placed on the rear group installation seat and tightly pressed by a front press ring, and an AB space ring is arranged between the biconcave lens A-2 and the negative meniscus lens B-1. The teleconverter has the advantages of being high in zoom ratio, large in wide angle, high in adaptivity and the like, as well as is beneficial to expansion for the view field angle of the wide-angle zoom lens, and is good in imaging effect in the high-magnification zoom process of the zoom lens.

The invention relates to a pressure plate assembly (1), particularly for a friction clutch, having automatic wear compensation, comprising a housing part connected to an opposite housing part (5) having an opposite friction surface (4), such as a flywheel, a dual-weighted flywheel, or an input part having an effective connection to the crankshaft of an engine, a pressure plate (6) disposed in thehousing part (3) and mounted movably in the direction of the rotary axis toward the pressure plate assembly, comprising a further opposite friction surface for engaging the opposite friction surface with friction surfaces formed on a clutch disc, a force storage (9) by means of which a press force is applied to the pressure plate, a wear adjustment device (10)acting in the force transfer path between the force storage and the pressure plate, wherein the wear adjustment device comprises at least one adjusting element (11) movable in an adjusting direction for adjusting wear, at least one play indicating arrangement (12) comprising a detecting element (13) provided on the pressure plate that contacts or can be brought into contact with a blocking element (14) supported by fixing relative tothe housing part or the opposite housing part when wear occurs, wherein an adjusting element (15) fixedly supported relative to the housing part is provided, by means of which the contact of the detecting element to the blocking element can be modified by impinging on the blocking element.

The fixation arrangement of the present invention is applied to a compressor of the type which comprises a shell (1) inferiorly defining an oil sump (3) and housing: a crankshaft (4) journalled in a cylinder block (2) and carrying a rotor (6) formed by a stack of annular laminations; and an oil pump (10) comprising a tubular sleeve (20), which is superiorly mounted to the rotor (6) and inferiorly immersed in the oil sump (3), and a pump shaft (30). The fixation arrangement comprises at least one retention element (40) radially and axially locked around the tubular sleeve (20) and having a radially outer locking portion (41), which is seated and radially forced against a respective confronting circumferential extension (6c) defined between two consecutive annular laminations, in order to axially lock the tubular sleeve (20) to the rotor (6).

A motor vehicle alternator includes a support having a hole which receives a plug portion of a support plinth on which a power diode is welded or soldered, the plinth having an axis along which it is force-fitted in the hole. The plinth also has an abutment portion projecting radially from the plug portion with respect to the axis.

A steering column arrangement has a sliding sleeve and a universal joint yoke, which has a receiving section in which the sliding sleeve is included at least in sections and coaxially. The covering outer surface of the sliding sleeve and the covering inner surface of the receiving section have molded components for the positive connection. A torsion damper element is arranged between the sliding sleeve and the receiving section of the universal joint yoke. This is an annular arrangement, including an inner carrier ring, an outer carrier ring and an elastomer ring arranged between them. The inner carrier ring and outer carrier ring are elastic in a radial direction and rigid in an axial direction.

The invention relates to a 5 mega-pixel micro camera lens with a large target surface. An optical system of the lens is provided with a front assembly A with negative focal power, a diaphragm C and a rear assembly B with positive focal power in the light ray incident direction from left to right; the front assembly A is sequentially provided with a negative crescent lens A-1, a biconcave lens A-2, a first gluing group which is formed through tight connection of a positive crescent lens A-3 and a biconcave lens A-4, as well as a biconcave lens A-5; and the rear assembly B is sequentially provided with a second gluing group formed through tight connection of a plano-convex lens B-1 and a positive crescent lens B-2, a biconvex lens B-3, as well as a third gluing group formed through tight connection of a biconvex lens B-4 and a positive crescent lens B-5. The lens has the advantages of ultra-wide field, high light gathering power, high resolution and broadband spectrum confocal performance, and can provide whole-interface sharp images superior to 5 mega-pixel for a high-definition network camera system.

An air sampling tube is provided that provides superior air flow, strength, and manufacturability and couples to an air sampling sensor housing. The sidewall of the tubular section has an axially extending groove. To facilitate installation and inspection, an air sampling tube is provided with a starter cap. An end cap prevents air flow through the distal end of the tube. An air sampling tube is provided that assures proper axial positioning of tubular section apertures through resort to a coupler with a rotationally asymmetric joining element. A modular kit is provided that allows for custom installation without resort to cutting or forming operations in the field.

The invention relates to a pick-up lens for a high-resolution single group movement industry. A front group A with negative focal power, an iris diaphragm C and a rear group B with positive focal power are sequentially arranged in an optical system of the lens along the incident direction from left to right of light, wherein the front group A is sequentially provided with a positive meniscus lens A-1, a positive meniscus lens A-2 and a negative meniscus lens A-3, and the rear group B is sequentially provided with a glued group with tight joint of a biconcave lens B-1 and a biconvex lens B-2, a biconvex lens B-3 and a positive meniscus lens B-4. The pick-up lens disclosed by the invention has the characteristics of high resolution, large target surface, low distortion, small minimum photographic distance and the like, and can be in adaptation with a high-resolution CCD (charge coupled device) or a CMOS (complementary metal oxide semiconductor) video camera, realize high-resolution videography, simultaneously realize clear imaging with minimum photographic distance of 0.3m and enable the distortion to be lower than 1%.

The invention relates to a high-resolution fine adjustment day and night prime lens. A front lens set A with negative focal power and a rear lens set B with positive focal power are arranged in the optical system of the lens sequentially in the left-to-right light incidence direction. An iris diaphragm C is arranged between the front lens set A and the rear lens set B. The front lens set A comprises a positive meniscus lens A-1 and a negative meniscus lens A-2 sequentially from left to right. The rear lens set B comprises a double-concave lens B-1 and double-convex lens B-2 tightly-connected gluing assembly and a double-convex lens B-3 sequentially from left to right. The high-resolution fine adjustment day and night prime lens has the advantages of small distortion, large relative aperture and high resolution, can meet the requirement of three-million-pixel high-resolution video shooting, and achieves the wide spectrum confocal aim.

The invention relates to a high-resolution day-and-night dual-use economical lens. In an optical system of the lens, a lens-group front group A with negative focal power and a lens-group rear group B with positive focal power are successively arranged at an incidence direction from left to right along light. An IR-CUT double filter C is arranged between the front group A and the rear group B. The front group A comprises a negative crescent lens A-1, a glue group closely connected to a double-concave lens A-2 and a negative crescent lens A-3 which are successively arranged from left to right. The rear group B comprises a double-convex lens B-1, a negative crescent lens B-2 and a double-convex lens B-3 which are successively arranged from left to right. An optical index of the high-resolution day-and-night dual-use economical lens is high, an optical target surface is large and a resolution ratio is higher than five million pixels. The lens can be used with a 16:9 system camera with 1 / 2.7'' high definition. A camera shooting system can realize a high definition shooting requirement to a scenery in a highlight dynamic change scope environment and there is little distortion.

The invention relates to a contact tube positioning tool and a contact tube machining method. The contact tube positioning tool comprises a workbench, wherein a tool positioning piece is assembled on the workbench and comprises horizontal press plates for horizontally pressing main contact finger mounting planes of end contact tubes, a support positioning frame for mounting a support and a ball rack positioning frame for mounting a ball rack, the support positioning frame comprises a support positioning hole coaxially fixed with a support mounting hole, and the ball rack positioning frame comprises a ball rack positioning surface fit with a ball rack mounting surface. The main contact finger mounting planes of the end contact tubes are kept horizontal by the horizontal press plates, reference is provided for assembly of a ball rack and a support, the support positioning frame and the ball rack positioning frame are assembled on the workbench, positions where the support mounting hole and the ball rack mounting surface are located are determined respectively by the aid of the support positioning hole and the ball rack positioning surface, and angle requirements of the support and the ball rack during positioning are guaranteed, so that a contact tube is positioned and meets the final product use requirement.

A transmission system of continuously variable transmission ratio includes an input shaft, an output shaft, first and second electric motor / generators comprising first and second rotors and first and second stators, respectively, at least one of the motor / generators being of axial flux type, the first and second rotors being connected to rotate with respective shafts and the electrical connections of the first and second stators being connected together. A controller is arranged to control the flow of electrical power between the first and second stators. The stator of the said at least one motor / generator comprises two stator portions on opposite sides of the associated rotor, at least one of which is arranged to be movable in the axial direction. The said portion of the stator is rotatably secured to a spigot portion of the associated motor / generator extending in the axial direction by way of cooperating helical formations. An actuator is arranged to rotate one of the said portions of the stator and the spigot relative to the other, thereby moving the said portion of the stator in the axial direction with respect to the associated rotor.

The invention relates to an assembly (60) for an aircraft turbine machine comprising a receiver for a pair of open rotor contra-rotating propellers, the assembly comprising a duct (52), ancillaries routed inside the duct, an attachment case (54), attachment means (62) of the duct on an annular installation portion (64) of the case (54).According to the invention, the attachment means (62) in an assembled configuration include:a split ring (66) fitted with internal projections (71) housed inside orifices (72) in the duct;a radial loading surface (68) of the ring made on the portion (64) the surface (68) being tapered and narrowing along a first axial direction, and being in contact with a peripheral surface (70) of the complementary shaped tapered split ring;means (80) of axially loading the ring along the first direction, these means (80) being blocked in the axial direction on the portion (64).

A mouthpiece assembly for an inhalation device including a replaceable substrate component and a replaceable substrate component therefor. The mouthpiece assembly comprises a mouthpiece which is essentially a hollow tube within which fluid flow can occur along a substantially longitudinal axis thereof. Within the mouthpiece, there is defined a cavity region which is adapted to receive and locate the substantially planar elongate substrate component such that it interacts with said fluid flow when occurring. The substrate component includes a substrate which can be excited sufficiently to cause aerosolisation, and the substrate is fixedly mounted within the substrate component in an orientation and location whereby a channel formation or a conduit of the substrate component at least partially coincides with said region and thus the surface of the substrate in that region is exposed to, and may be entrained within, whatever fluid may be flowing in that channel or conduit.

The invention relates to the field of optical lenses, and particularly relates to a super-distant-vision glare-interference-prevention long-wave infrared optical athermalized automotive lens. The automotive lens comprises a main lens cone and an optical system arranged in the main lens cone, wherein the optical system comprises a negative crescent lens, a positive crescent lens and a biconvex lens which are sequentially arranged along the light incidence direction from front to back; and a rear clamping ring is arranged at the rear end of the main lens cone and is used for pressing the periphery of the rear side of the biconvex lens. The automotive lens has a simple structure and has certain temperature adaptability.

The invention relates to the technical field of optical lens devices, in particular to a three-piece far infrared electric whole set focusing type uncooled lens. The three-piece far infrared electric whole set focusing type uncooled lens comprises a main lens barrel, a first lens with positive focal power, a second lens with negative focal power and a third lens with positive focal power are sequentially arranged inside the main lens barrel in the incidence direction, from front to back, of light, the main lens barrel is sleeved with a sleeve, a connecting base is arranged at the rear end of the sleeve, and a focusing mechanism for focusing is arranged between the connecting base and the sleeve. The lens is simple in structure, and the imaging property is improved conveniently.

The invention relates to an underwater mobile carrier accommodated docking platform, in particular to an underwater mobile carrier pushing device. A supporting frame A is connected with a supporting frame B by supporting rods; guiding shafts are arranged between the supporting frame A and the supporting frame B; a sliding assembly is in sliding connection with the guiding shafts; a rear connectionhinge plate is mounted on the supporting frame A; a front connection hinge plate is mounted on the sliding assembly; two ends of a hydraulic cylinder are respectively hinged with the front connectionhinge plate and the rear connection hinge plate; the hydraulic cylinder drives the sliding assembly to reciprocate between the supporting frame A and the supporting frame B along the guiding shafts;the sliding assembly comprises a front slip ring and a rear slip ring which are mutually connected; suspended supporting blocks which are in sliding connection with the guiding shafts are respectivelyconnected to the front slip ring and the rear slip ring; the front connection hinge plate is mounted on the front slip ring; a bow top cover is mounted on the rear slip ring. The underwater mobile carrier accommodated docking platform disclosed by the invention has the advantages of simple structure, high reliability and high precision; the underwater mobile carrier accommodated docking platformcan do linear reciprocating motion along the given trajectory and stroke, can realize effective buffer and axial positioning of an underwater mobile carrier and provides accurate axial position for the underwater docking platform.

An integrated optical auto focus and zooming system is provided, which includes a first optical lens, a first hollow casing, a second hollow casing, a plurality of piezoelectric elements. The first optical lens is placed in the first hollow casing, the first hollow casing and the second hollow casing are screwed with each other, and the plurality of piezoelectric elements are attached either on the first hollow casing or the second hollow casing. Upon the excitation of mechanical vibrations by the plurality of piezoelectric elements, a traveling wave is generated on the attached casing, so as to drive the other casing to rotate and then to move axially. Additional lens groups and casings can be added in the same way so to achieve multiple relative motions between lens groups and image sensor, and thus achieving the objectives of focusing and zooming. The present invention integrates the motor into the lens and hence eliminates the transmission mechanism, leading to simple structure, high efficiency, and multiple advantages in size, cost, and efficiency, etc., and thus can be very useful.

The invention relates to an electrical zooming and focusing six million-pixel day and night dual-purpose lens. The optical system of the lens is provided with a front lens group A with negative focal power and a rear lens group B with positive focal power sequentially along the light incident direction from left to right; a variable diaphragm C is arranged between the front group A and the rear group B; the front group A comprises a lens A-1, a lens A-2 and a lens A-3 which are arranged in sequence from left to right; the rear group B comprises a lens B-1, a lens B-2, a lens B-3, a gluing group for close connection of a lens B-4 and a lens B-5 and a gluing group for close connection of a lens B-6 and a n lens B-7 which are arranged in sequence from left to right. Through the motor accurately and electrically adjusting the lens, the view angle of a monitoring field can be conveniently selected; when the view field of the monitoring filed needs to be conveniently and accurately switched, adopting the lens is important, and the optical design is optimized; and the lens can be applied to the newest 1 / 1.8'' large-target plane CCD chip on the market, and monitoring needs of a supper large view angle can be met.

A device for mounting a wheel of a bicycle onto a frame, including an inner hub rotatably mounted on the frame and equipped with an inner axial support area, an outer hub connected to the rim of the wheel by means of traction spokes, compression spokes, or flanges, and including an outer axial support area that cooperates with the inner axial support area, a mechanism for tightening the outer hub on the inner hub, the inner and outer axial support areas being located at a distance from the axis of the wheel at least greater than 20 mm, or greater than 25 mm, and distributed along the vicinity of a circle having a radius greater than 25 mm, centered on the axis of the wheel. The inner and outer axial support areas include a plurality of teeth forming part of a transmission mechanism.