81results about How to "Reduce assembly tolerances" patented technology

The invention discloses an optical module which comprises a housing, a heat sink arranged in the housing, a plurality of lasers arranged on the heat sink, a PCB which is partially arranged on the heatsink, and an optical system arranged in the housing. One end of the optical module is provided with an optical interface, and the other end is provided with an electric interface. The optical systemis arranged between the plurality of lasers and the optical interface. The optical system comprises a wavelength division multiplexer. The PCB is a hard board. The plurality of sets of laser are electrically connected with the PCB. One end of the PCB is fixed to the heat sink, and the other end is constructed to be provided with the electric interface. The optical system guides an optical wave transmitted from the laser to the optical interface. The optical module is a whole hard PCB and supplies better high-speed electric signal transmission performance.

The invention discloses a roundabout broadband efficient multi-channel space power synthesis network, which is divided into upper and lower layers and comprises a lower transfer cavity, an upper coverboard, a lower bottom surface radiator and an upper top surface radiator, wherein the upper cover board covers an upper end cover of the lower transfer cavity; the upper top surface radiator is arranged at the upper side of the upper cover board; the lower bottom surface radiator is arranged at the lower end of the lower transfer cavity; microwave circuits are regularly distributed in the lower transfer cavity; an E-plane waveguide power division network and waveguide E-plane double probes are adopted by the regular lower transfer cavity as power distribution and synthesis units; and meanwhile, the E-plane waveguide power division network is of a multi-stage roundabout structure, so that waveguides at an input end and an output end are arranged on the same horizontal line; a full operating frequency range corresponding to a standard waveguide can be directly covered, and meanwhile, the problems, in synthesis efficiency, productibility and heat dissipation efficiency, of the prior artcan be solved.

Provided are a pitch actuator for a wind turbine generator and a wind turbine generator that can be prevented from losing their reliability. Provided are a cylinder (12) and a rod (13) that rotate a wind turbine rotor blade about an axis thereof relative to a rotor head to change a pitch angle; a cylinder bearing (14, 15) supporting the cylinder (12) so as to be rotatable relative to the rotor head about a first rotation axis (L1) extending substantially parallel to the axis of the wind turbine rotor blade and about a second rotation axis (L2) extending in a direction crossing both the first rotation axis (L1) and the axis of the cylinder (12) and the rod (13); and a rod bearing (16) rotatably supporting an end of the rod (13) on an end surface of the wind turbine rotor blade.

The invention relates to a light shield used for a display. The light shield comprises a first shading sheet, a second shading sheet, a third shading sheet and a movable gate, wherein the first shading sheet is arranged at the first lateral side of the display, the second shading sheet is arranged at the second lateral side, opposite to the first lateral side, of the display, the third shading sheet is arranged at the third lateral side, between the first and second lateral sides, of the display, the third shading sheet includes an opening, and the movable gate covers the opening and includes a front side and a back side. The back side is provided with a first clasp piece and a second clasp piece, and the first clasp piece and the second clasp piece extend to the first side edge and the second side edge of the opening respectively, and are clamped with the first side edge and the second side edge of the opening respectively. The first and second clasp pieces are clamped with the two side edges, opposite to each other, of the opening to reduce the assembling tolerance and reduce the sliding freedom, positioning is easy, and the assembling quality is improved.

The invention provides an optical module group assembling device comprising a fixing member used for fixing an optical member to be assembled, a power source assembly used for supplying electric powerto the optical member to be assembled, an aligning mechanism used for placing lenses to be assembled at a designated position for the assembled optical member, a light splitting prism of which a light receiving face is positioned close to an optical device to be assembled, a first image collection device positioned close to a first light emitting face of the light splitting prism, a second imagecollection device positioned close to a second light emitting face of the light splitting prism, and a controller used for controlling the aligning mechanism to adjust positions of lenses to be assembled according to photos taken via the first image collection device and the second image collection device, wherein the first image collection device and the first light emitting face are coaxial, andthe second image collection device and the second light emitting face are coaxial. Via the device provided in the invention, assembling allowance of an optical module group can be lowered, and optical performance of the optical module group can be effectively improved.

The invention provides a touch-control module, comprising a panel device, an external frame, and an optical sensing device. The panel device comprises a display panel provided with a touch-control panel and an array substrate. The array substrate is electrically connected with the display panel. The external frame is disposed on the panel device. The optical sensing device is disposed between thepanel device and the external frame, and comprises a circuit wiring, at least a lens, a photosensitive wafer and a reflective lens. The circuit wiring is formed on the array substrate. The lens is disposed between the display panel and the external frame, and used for transmitting sensing light sent via the touch-control panel. The photosensitive wafer is electrically connected with one end of the circuit wiring. The reflective lens is disposed at a position corresponding to the upper part of the photosensitive wafer, and used for reflecting the sensing light sent via the lens to the photosensitive wafer. The touch-control module reduces of structural space required to be occupied by the optical sensing device in the touch-control module, and solves problems of complex wiring of the optical sensing device and time-consuming and labor-consuming of assembly process.

The invention relates to a prime lens, which comprises a first lens group (11) and a second lens group (12) sequentially arranged from an object side to an image side. In the direction from the objectside to the image side, the first lens group (11) comprises a first lens (111) with negative focal power, a second lens (112) with negative focal power, a third lens (113) with positive focal power and a fourth lens (114) with positive focal power. In the direction from the object side to the image side, the second lens group (12) comprises a fifth lens (121) with negative focal power, a sixth lens (122) with positive focal power, a seventh lens (123) with negative focal power, an eighth lens (124) with positive focal power, and a ninth lens (125) with positive focal power. According to the prime lens, the lenses meet the matching of the focal power, so that the prime lens has the capability of synchronously imaging visible and near infrared spectrums and can have an ultra-long back focalratio.

A lens assembly includes a lens holder and a lens barrel that are coaxial and integrated in a unity, a cavity is defined therein to receive at least one lens, at least three guiding legs are extended from a bottom of the lens holder, and the guiding legs define a plane that is parallel to an installation plane of the lens. It can achieve an accurate optical axis alignment between the lens and the image sensor, reduce total assembly tolerances of the camera module thereby improving imaging quality, and reduce manufacturing cost to benefit the popularization in industries.

An image capturing module is provided. The image capturing module includes: a lens assembly supporting at least one lens, moving along an optical axis of light indicating an image of a subject, and comprising guiding protrusions for guiding the moving the optical axis; a module supporting unit comprising guiding holes to which the guiding protrusions are inserted to guide the lens assembly; a lens driving unit comprising a winding vibration type piezoelectric motor and a piezoelectric motor supporting member, wherein the winding vibration type piezoelectric motor is disposed on the module supporting unit and moves the lens assembly along the optical axis and the piezoelectric motor supporting member supports the winding vibration type piezoelectric motor; a pressurizing member interposed between the piezoelectric motor supporting member and the module supporting unit; and a plurality of ball assemblies interposed between the module supporting unit and the lens assembly.

The invention discloses an air inlet duct assembly for an automobile and an air inlet mechanism, and belongs to the technical field of air inlet systems of motor vehicles. The air inlet duct assemblyfor the automobile comprises an air inlet duct shell; a first air inlet port is formed in the side wall of the air inlet duct shell; an air outlet port is formed in the bottom wall of the air inlet duct shell; an air inlet cavity is formed in the air inlet duct shell; a first separation plate and separation grids are arranged in the air inlet cavity; the first separation plate is bent inwards fromthe bottom of the air inlet port and extends upwards; the top end of the first separation partition plate and the inner wall of the air inlet duct shell form a second air inlet; the separation gridsincline inwards from the top of the air inlet port and are arranged and extend downwards; the separation grids are arranged on the outer side of the second air inlet port; and the bottom ends of the separation grids are not higher than the top end of the first separation partition plate. The air inlet duct assembly for the automobile is high in filtering and impurity removing efficiency, small inair resistance and low in energy consumption; noises is low; and the air inlet duct assembly of the air inlet mechanism and an air filter do not need to be connected through a corrugated pipe, the manufacturing cost is low, and the assembly tolerance is small.