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1498 results about "Light hole" patented technology

Electronic device

The invention relates to an electronic device. The electronic device comprises a body, a display panel and a camera assembly. The body comprises a middle frame shell. The camera assembly comprises a camera. The camera is arranged to face the front surface of the body. The display panel is arranged on the middle frame shell through the front side of the body. The camera assembly is capable of rotating along a preset axial direction within the corner portion of the middle frame shell. The preset axial direction is arranged along the thickness direction of the body. When the camera assembly is rotated to be at a first posture, the camera assembly is completely accommodated in the corner portion of the middle frame shell. When the camera assembly is rotated to be at a second posture, the camera protrudes out of the middle frame shell. When the camera is not in use, the camera is accommodated in the corner portion of the middle frame shell. When the camera is in use, the camera assembly is rotated from the first posture to the second posture. Therefore, the camera is moved to the front side of the body. As a result, no light hole is reserved on the display panel, so that the screen integrity of the display panel is not influenced at all. In this way, the pre-posed camera problem of full-screen electronic equipment can be solved.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

A display module and a display device

The invention provides a display module and a display device and belongs to the technical field of display. The display module comprises a transparent display component and a fingerprint component, wherein the transparent display component is arranged on the fingerprint component; the transparent display component comprises a plurality of pixel units; the fingerprint component comprises at least one optical fingerprint sensor; at least one light hole is formed between the multiple pixel units and the at least one optical fingerprint sensor; the positive protection image of the at least one optical fingerprint sensor on the transparent display component is located in a display area of the transparent display component and covers the at least one light hole; a first distance between each light hole in the at least one light hole and a light emitting surface of the transparent display component is greater than a second distance between each light hole to the optical fingerprint sensor. The problems that it is difficult to achieve full-screen display of a display device and a display effect is poor are solved; a display effect is improved. The display module and the display device are used for display.
Owner:BOE TECH GRP CO LTD

Display device and control method thereof

The embodiment of the invention provides a display device and a control method thereof, and relates to the technical field of display. The display device and the control method thereof are used for increasing light energy reaching photosensitive sensing units so as to improve the accuracy of fingerprint identification. The display device comprises a display panel, wherein the display panel comprises multiple photosensitive sensing units. The display device further comprises a light hole forming layer, a liquid crystal lens layer, a light guide layer and a light source, wherein the light hole forming layer, the liquid crystal lens layer and the light guide layer are located on the display side of the display panel and arranged in sequence in the direction away from the display panel, and the light source is arranged on the side face of the light guide layer. The light hole forming layer can be switched between a light transmitting state and a small hole state, and in the small hole state, the light hole forming layer is used for forming light holes right facing the photosensitive sensing units; the liquid crystal lens layer can be switched between a non-lens state and a lens state, and in the lens state, the liquid crystal lens layer is used for forming convex lenses right facing the photosensitive sensing units.
Owner:BOE TECH GRP CO LTD

Door

The invention discloses a door, which comprises a door frame, a door leaf and an opening and closing mechanism, wherein the door leaf is hinged on the door frame, and a secondary sealing structure is adopted between the door leaf and the door frame; the door leaf comprises a basal body and a heat insulation layer; the opening and closing mechanism comprises a rotating shaft, a connecting flange, a connecting rod and a guide sleeve; the rotating shaft passes through a light hole penetrating the door leaf and can rotate in the light hole; on the inner side of the door leaf, the rotating shaft is in threaded connection with the connecting flange; the connecting rod is hinged on the connecting flange; and the connecting rod passes through the guide sleeve arranged on the door leaf. The door is mainly used as a capsule door of a rescue capsule for mine to solve the problems of complex structure and poor sealing and heat insulation effects of the capsule door opening and closing mechanism of the conventional rescue capsule for mine, can also be used as a door of a cabin, a cold store or the like, and has the advantages of simple structure of the opening and closing mechanism and good sealing and heat insulation effects.
Owner:安徽欣万顺安全装备科技有限公司

Device and method for detecting amount of bottom thread of sewing machine

The invention provides a device for detecting the amount of bottom thread of a sewing machine. The sewing machine comprises a bottom plate, a rotating shuttle and an electronic control module, wherein the rotating shuttle comprises a shuttle shell and a shuttle core; the shuttle core comprises a winding post and two flanges; at least one flange in the two flanges is provided with a first surface part and a second surface part on the outer surface; a light hole is formed on the outer wall of the shuttle shell; the first surface part or the second surface part is exposed outside from the light hole; the sewing machine also comprises a sensor fixed in the bottom plate; the sensor comprises a transmitter used for transmitting light, and a receiver used for receiving light; the receiver and the transmitter of the sensor just face to the first surface part or the second surface part exposed outside from the light hole, and the light reflection capabilities of the first surface part and the second surface part are different from each other; the sensor is connected with a signal processing module; the signal processing module is connected with the electronic control module. The device for detecting the amount of the bottom thread of the sewing machine is capable of timely detecting whether the bottom thread is used up or not in real time.
Owner:JACK SEWING MASCH CO LTD

Terminal device and image-pickup method

The invention provides a terminal device and an image-pickup method. With the terminal device and the image-pickup method adopted, multi-direction image pickup can be realized through a single camera lens. The terminal device includes a camera lens, a first light hole, a second light hole, a first light path modulation component and a control component; the camera lens includes a lens and a photosensitive component; the direction of the optical axis of the camera lens is orthogonal to a first direction and a second direction; the first light hole is arranged at the first surface of the terminal device and is configured to make light from the first direction enter the terminal device; the second light hole is arranged at the second surface of the terminal device and is configured to make light from the second direction enter the terminal device; the first light path modulation component is configured to change the direction of the light from the first light hole or the second light hole; the control component is configured to control the first light path modulation component to make light from the first light hole projected into the camera lens when receiving signals of a first shooting mode selected by a user, and is configured to control the first light path modulation component to make the light from the second light hole projected into the camera lens when receiving signals of a second shooting mode selected by the user.
Owner:LENOVO (BEIJING) CO LTD

Lamp-based scent releasing system

A lamp-based scent releasing system includes a housing with light holes, a lamp holder fixedly mounted inside the housing, a lamp bulb installed in the lamp holder, a power cable connected to the lamp holder for connection to an electric outlet to obtain the necessary working voltage for the lamp bulb, a heat-transfer tray fastened to the top open of the housing and holding an aromatic substance, and a heat-resistant protective cup surrounding the lamp bulb inside the housing and having radiation holes for guiding radiation heat from the lamp bulb toward the heat-transfer tray to heat the aromatic substance to release a scent.
Owner:HSIAO MING JEN

Long-path optical absorption cell adjustable in optical path

The invention discloses a long-path optical absorption cell adjustable in optical path. The long-path optical absorption cell adjustable in optical path comprises an incident end and an emergent end; the incident end and the emergent end are connected and fixed by use of a metal supporting rod, can directly form an open measurement system, and can also be combined with a quartz glass chamber to form a seal structure; an incident spherical mirror adjustable by use of an inclined screw is mounted on the incident end; an incident light hole is formed in the incident spherical mirror; an emergent spherical mirror adjustable by use of a rotating shaft plate is mounted on the emergent end; an emergent light hole is formed in the emergent spherical mirror; incident light is reflected between the incident spherical mirror and the emergent spherical mirror in the absorption cell, and therefore, long optical path is realized; the light hole is rotated so that a light beam is emitted from different positions, and quasi-continuous adjustability of the long optical path is realized. The long-path optical absorption cell adjustable in optical path is simple in structure and adjustable optical path is effectively realized.
Owner:黄山市开发投资集团有限公司

Collimating structure, manufacturing method thereof and display device

The invention discloses a collimating structure, a manufacturing method thereof and a display device. The collimating structure which is provided with light holes and formed by multiple light blockinglayers is adopted, the distance between the light blocking layers is adjusted by light transmitting layers, so that the required depth-width ratio of sleeve holes is reached, and a light receiving angle of the collimating structure is limited. A better collimation effect can be achieved by only manufacturing the multiple light blocking layers and the light transmitting layers with a relatively simple structure, and the device is lighter and thinner in structure, so that the processing / machining difficulty of the device can be reduced. Besides, at least one middle light blocking layer locatedbetween the top light blocking layer and the bottom light blocking layer is arranged, distance between the light blocking layers is adjusted by the light transmitting layers, and light ray interference among the light holes can be blocked, so that accuracy of identified grain information can be improved.
Owner:BOE TECH GRP CO LTD

Spectrum scaling apparatus used for spectrum imager

The invention discloses a spectrum scaling apparatus used for a spectrum imager. The apparatus is characterized in that: a light beam which is emitted by a broadband light source (1) goes through a diaphragm (2) and a collimating lens (3) and irradiates a wavelength tuning optical filter (4), a plurality of narrowband optical signals which are distributed in a comb-shaped mode and have different wavelengths are outputted, after light intensity adjusting by a broadband bandpass optical filter (5), the signals enter into an integrating sphere (9) from an integrating sphere incident light hole (6) for depolarization and space uniformity processing, and an integrating sphere light extraction hole (8) outputs a surface light source. A spectrum imager to be measured is placed on the light extraction hole (8) for spectrum scaling. According to the apparatus, a birefringence crystal is utilized to carry out light transmission rate modulation, a passband peak value position and a bandwidth size can be adjusted, a plurality of narrowband light intensity signals changing with a wavelength are provided in a broadband range, wavelength scanning is not needed when carrying out spectrum scaling on the spectrum imager, wavelength scaling with one-time imaging is realized, and the apparatus is suitable for scaling a large field of view and large caliber spectrum imager.
Owner:SUZHOU UNIV +1

Mobile terminal backlight intensity accurately adjusted method, system and mobile terminal

ActiveCN103391365AFixes an issue where the backlight intensity level was incorrectly adjustedImprove user experienceSubstation equipmentProximity sensorComputer terminal
The invention discloses a mobile terminal backlight intensity accurately adjusted method, system and mobile terminal. The mobile terminal backlight intensity accurately adjusted method includes that when the mobile terminal receives a screen lightening request, the current ambient light intensity is collected through a light sensor and the level of the backlight intensity is adjusted according to the ambient light intensity; when the change of the current ambient light intensity is collected through the light sensor, the position state of a blocking object and a light hole is determined; if the blocking object is close to the light hole, a user can determine that the current ambient light intensity does not change and the existing level of the backlight intensity of a screen of the mobile terminal is maintained; if the blocking object is far away from the light hole, the level of the backlight intensity of the screen of the mobile terminal is readjusted according to the new ambient light intensity. According to the mobile terminal backlight intensity accurately adjusted method, system and mobile terminal, the light sensor is combined with a proximity sensor, so that the problem that the level of the backlight intensity is misadjusted due to the fact that the user blocks the light hole by accident is solved, the probability that the level of the backlight intensity is misadjusted is reduced to a large extent, and the reliable function experience is provided for the user.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Quantum optical semiconductor device

A quantum semiconductor device including quantum dots formed by S-K growth process taking place in a heteroepitaxial system wherein the relationship between the energy level of light holes and the energy level of heavy holes in the valence band is changed by optimizing the in-plane strain and the vertical strain accumulated in a quantum dot.
Owner:FUJITSU LTD

Protective cover, camera module, and electronic device employing the same

An electronic device includes a housing, a circuit board, and a camera module. The camera module includes a camera unit, a flash device, and a protective cover. The camera unit records and stores images, and the protective cover protects the camera unit and the flash device. The protective cover includes an opening, a light hole, and a separation portion located between the opening and the light hole. The light from the flash device is diffused and passes through the light hole. The camera unit and the flash device are separated by the separation portion to prevent the light of the flash device from entering camera unit through the opening.
Owner:FIH (HONG KONG) LTD

Miniature camera device and manufacturing method thereof

The invention discloses a miniature camera device comprising a circuit board, a photosensitive chip, an optical filter, a bracket and a lens component, wherein the photosensitive chip is laminated on the circuit board, the bracket comprises a bracket main body and an annular boss used for forming the bottom of the bracket main body, a light hole penetrating through the annular boss is formed in the middle of the bracket main body, the annular boss and a non-photosensitive area on the periphery of the photosensitive chip are adhered together, the bracket, the annular boss, the photosensitive chip and the circuit board are combined into an entirety by a plastic package body made of a plastic package material, the plastic package body is combined with the outer side of the bracket, the outer side of the annular boss, the peripheral side of the photosensitive chip and the upper side of the circuit board, the lens component is installed on the upper side of the bracket and / or the upper side of the plastic package body, the optical filter is arranged between the lens component and the photosensitive chip and is installed at the light hole in the middle of the bracket. The miniature camera device disclosed by the invention reduces the size of the camera module, reduces the risk of particle soiling in the camera and enhances the reliability of the product.
Owner:KUNSHAN Q TECH CO LTD

Measurer for vehicle steering angle

A vehicle steering angle measuring instrument is characterized in that a pair of measuring units are symmetrically arranged at a left steering knuckle and a right steering knuckle which are positioned at the two sides of an axle; each measuring unit has the following structural form: a fixed bracket is fixedly connected on each knuckle; a horizontal tray is arranged on the top of the fixed bracket; a steering wheel is arranged in parallel in the horizontal tray and rotates relative to a fixed axle of the horizontal tray; angle indexes are arranged on the outer surface of the steering wheel; a scale plate is vertically installed on the steering wheel; a laser source is fixedly arranged on the steering wheel and positioned on the back of the scale plate; a light hole is formed in the position of the scale plate, which is irradiated by a laser beam; and a scale is arranged on the scale plate in horizontal direction. The measuring instrument applied in the process of assembling the front axle of a vehicle can meet the adjusting and inspecting requirements of the steering angle of the front axle of the vehicle at a certain production tempo and according to certain requirements for product quality.
Owner:ANHUI JEE AUTOMATION EQUIP CO LTD

Organic light emitting display device

The invention discloses an organic light emitting display device comprising an organic light emitting diode which is composed of a first conductive electrode, an organic electroluminescence unit and a second conductive electrode from bottom to top. A micro lens array is arranged on the second conductive electrode. A buffer material layer is arranged on the micro lens array. A light absorption layer capable of absorbing ambient incident light is arranged on the buffer material layer. A light hole array including a plurality of light holes is arranged in the light absorption layer, and the light absorption layer corresponds to the micro lens array. The micro lens array includes a plurality of micro lenses. Self-emitted light of the organic light emitting diode can be converged through the micro lenses, and emitted out through the light holes. By adopting the organic light emitting display device of the invention, the ambient contrast ratio can be effectively improved, the luminous efficiency of the OLED device can be maintained to the maximum, and the visibility of an AMOLED device in the sunlight can be improved.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Panel, method for forming concealed light hole of panel and touch screen with panel

The invention discloses a panel, a method for forming a concealed light hole of the panel and a touch screen with the panel. The panel comprises a transparent substrate, a main body black ink layer, a cover bottom black ink layer, an IR (iridium) light-transmitting ink layer and a semi-transparent ink layer, wherein the transparent substrate is provided with a first surface and a second surface; the second surface is opposite to the first surface; the first surface is a window surface; the main body black ink layer is arranged at the edge of the second surface; an area, which surrounds the second surface, of the main body black ink layer is a window area; a through hole is formed in the main body black ink layer; the cover bottom black ink layer covers the main body black ink layer; the through hole is exposed out of the cover bottom black ink layer; the IR light-transmitting ink layer covers the area of the through hole; the semi-transparent ink layer covers the IR light-transmitting ink layer, and completely covers the through hole, so that the concealed light hole is formed. The panel is provided with the concealed light hole; and transmission light is uniform and soft.
Owner:NANCHANG O FILM OPTICAL TECH +3

Phase modulation stepped array micro-spectrograph

The invention relates to a phase modulation stepped array micro-spectrograph which comprises a micro-interferometer two-dimensional array constructed on the upper surface of a substrate (3). Each micro interferometer is provided with a first step (1); the first steps (1) have different heights in different micro-interferometers; the lower surface of the substrate (3) is provided with a CCD (4), and a layer of shielding objects (7) is arranged between the substrate (3) and the CCD (4); most of CCD surface elements are shielded by the shielding objects (7), light holes are left in the shielding objects (7) below each micro interferometer, the diameter of each light hole is smaller than the minimum wavelength of an incident light wave detected by the CCD (4), the width of the first step and the wavelength of the incident light wave are in the same magnitude, the maximum height of the first step also is the wavelength magnitude of the incident light wave, two confocal lenses (6) are arranged above the micro-interferometer two-dimensional array, an a light shielding plate at the focal point between the two confocal lenses (6) is provided with small holes (5). The invention solves the technical problems of large volume, vibration sensitivity, high manufacturing cost, low resolution, narrow measured bandwidth and the like.
Owner:NANJING FANGYUAN GLOBAL DISPLAY TECH

Terminal device, control method and control device thereof and computer readable storage medium

The invention discloses terminal device. The device comprises a shell, a display module (200) and a camera (300). The display module (200) is arranged on the shell. The display module (200) comprisesa display screen. The terminal device also comprises a driving mechanism (400). A light hole is formed in the display screen, the camera (300) is arranged on the inner side of the display screen and is opposite to the light hole, the driving mechanism (400) is connected with the camera (300), and the driving mechanism (400) drives the camera (300) to move in the direction close to the display module (200). According to the scheme, the problem that the area of the non-display area, opposite to the camera, on the display screen is large under the condition that the camera under the screen is adopted by current terminal device can be solved. The invention further discloses a control method and a control device of the terminal device and a computer readable storage medium.
Owner:VIVO MOBILE COMM HANGZHOU CO LTD

Perovskite-type solar cell and preparation method

The invention discloses a perovskite-type solar cell and a preparation method. The perovskite-type solar cell sequentially consists of a transparent conductive substrate, a dense electron transmission layer, a composite light absorption layer and a metal electrode layer, wherein the composite light absorption layer is formed by a core shell structure where perovskite wraps P-type semiconductor quantum dots. Because the composite light absorption layer of the solar cell employs the core shell structure where perovskite wraps P-type semiconductor quantum dots and the perovskite fully contacts with the quantum dots, the contact area of the quantum dots with a perovskite structural layer is increased. Moreover, the advantage that the perovskite can be used as a hole transmission layer is employed, thereby improving the efficiency of light hole separation, and improving the photoelectric conversion efficiency of the cell.
Owner:HAIMEN THE YELLOW SEA ENTREPRENEURSHIP PARK SERVICE CO LTD

Raman enhanced measurement device and method and off-axis integral cavity structure applied to Raman enhanced measurement

InactiveCN104280338ASimple and accurate judgment of componentsSimple and accurate judgment of concentrationRaman scatteringMeasurement deviceTest sample
The invention relates to the spectral measurement field and discloses a Raman enhanced measurement device. The Raman enhanced measurement device comprises a laser, a collimating system, an off-axis integral cavity, an edge filter, a light receiving lens, a spectrometer and a control system, which are arranged sequentially, wherein the off-axis integral cavity comprises a front plane-concave lens and a rear plane-concave lens, the concave surfaces of the lenses face the cavity, and a tested sample is contained in the cavity; the front plane-concave lens is coated with a total reflection film, a light hole is formed in a place deviated from a central shaft, and the rear plane-concave lens is coated with a laser high-reflection edge filter film. The invention also discloses a Raman enhanced measurement method using the Raman enhanced measurement device and an off-axis integral cavity structure applied to Raman enhanced measurement. The off-axis integral cavity technology is adopted to enable laser to be oscillated back and forth in the cavity for multiple times, the number of excited molecules is greatly increased, the Raman spectrum enhancement is realized, and thus the gas or liquid sample with low molecular concentration also can generate strong Raman spectrum; the composition and the concentration of the tested sample can be simply and accurately judged through analysis of Raman spectrum peaks.
Owner:SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD

Anti-shaking camera module

The invention discloses an anti-shaking camera module. The anti-shaking camera module comprises a fixed circuit board and a movable circuit board which are arranged oppositely one above the other, wherein the fixed circuit board and the movable circuit board are supported through a suspension component and electrically connected with each other; the fixed circuit board is provided with light holes; a light sensing chip and a focusing component are fixed on and electrically connected with one side facing the fixed circuit board of the movable circuit board; a lens is arranged in the focusing component; a light inlet of the lens faces the light hole of the fixed circuit board; a light outlet of the lens faces a light sensing surface of the light sensing chip; and an anti-shaking component is fixed on and electrically connected with the fixed circuit board. Through adoption of the anti-shaking camera module, an integral anti-shaking function of the lens and the light-sensing chip can be realized; the imaging quality of the module is enhanced; and the assembling process of the module is simplified.
Owner:TRULY OPTO ELECTRONICS

Array-type multi-optical-path system for gas-phase monitoring

The invention relates to an array-type multi-optical-path system for gas-phase monitoring, and belongs to the technical field of gas-phase monitoring. The array-type multi-optical-path system for gas-phase monitoring comprises an array-type multi-optical-path absorption pool and a four-phase spectrometer which are connected with each other via fiber; the array-type multi-optical-path absorption pool is formed by multiple miniature planar mirrors, an open-type air chamber, an fiber coupler and an incidence hole; the planar mirrors are disposed in an arrayed manner, the included angle of each planar mirror and an upper surface or a lower surface is pi / 4, and the last planar mirror is disposed horizontally; the four-phase spectrometer comprises an incidence light hole, an emergent light hole, two photodetection reception holes and a spectroscope; the incidence light hole and the emergent light hole are disposed oppositely; the two photodetection reception holes are disposed oppositely; and the spectroscope is disposed at the center of the spectrometer along the diagonal line of the spectrometer. The array-type multi-optical-path system has the advantages of simple structure, stable performance, convenient monitoring, self-settable valid optical path, and applicability to monitoring on production field gas-phase components and concentration.
Owner:深圳市雷影光电科技有限公司

Spinneret plate microscopic examination instrument

The invention discloses a spinneret plate microscopic examination instrument which is provided with a base, a support, a suspension arm, a coaxial microscope, a working bench, a working bench regulating device and a light source, wherein the working bench is provided with a base plate, a supporting plate and a bench plate; the working bench regulating device comprises a regulating shaft, a hollow shaft, a front rotary knob, a rear rotary knob, a left rotary knob, a right rotary knob, a front gear rack pair, a rear gear rack pair, a left gear rack pair and a right gear rack pair, thus the bench plate can move two-dimensionally; a spray pipe frame is fixed on the suspension arm; a spray pipe of a spray nozzle is fixedly arranged on the spray pipe frame positioned dead ahead the coaxial microscope; a spacing element is fixed on the front end of the guide rail; and the light source is arranged on a light hole of the base. According to the invention, manual operation is adopted, the structure is simple and compact; the instrument is small in volume; the manufacturing cost is low; and after a hole is examined, if the hole is found to be a fault hole, the fault hole can be dredged, and the working efficiency is improved greatly.
Owner:CHANGZHOU HUAFANG TEXTILE INSTR CO LTD

Display panel, manufacturing method thereof, and display device

InactiveCN109001933AMeet the needs of light transmissionStable supportNon-linear opticsTransmittanceDisplay device
The invention discloses a display panel, a manufacturing method thereof and a display device. The display panel comprises a display area and a non-display area surrounding the display area, wherein the display area surrounds at least one light hole; the display panel comprises a first substrate and a second substrate, which are arranged oppositely; the first substrate comprises a first transparentsubstrate; the second substrate comprises a second transparent substrate; and a compound insulation laminated structure is padded between the first transparent substrate and the second transparent substrate in the area where the light hole is located. According to the display panel disclosed by the invention, the first transparent substrate and the second transparent substrate do not need to becut to form the area where the light hole is located, the compound insulation laminated structure is just padded between the first transparent substrate and the second transparent substrate in the area where the light hole is located, the compound insulation laminated structure is made of a transmitting insulating material, so that the light transmittance of the area where the light hole is located satisfies set requirements, and meanwhile the compound insulation laminated structure also has good supporting performance.
Owner:XIAMEN TIANMA MICRO ELECTRONICS

Laser measuring device for measuring thickness of plate

InactiveCN101825438ASolve installation difficultiesSolve the problem affected by the high temperature heat radiation of the measured objectUsing optical meansCamera lensMeasuring instrument
The invention discloses a laser measuring device for measuring the thickness of a plate, which comprises a laser, a camera, a black screen and a computer. When the device is used, the laser and the black screen are positioned on two sides of the tested plate; a laser-emitting point S is above the bottom surface of the tested plate; a baffle plate is arranged on the emergent light path of the laser; the baffle plate blocks the laser beam which is about one third of spot diameter; the camera and the laser are positioned on the same side of the tested plate; the incident light hole T of the camera is positioned below the tested plate; an optical filter is arranged in front of a lens of the camera; and the computer is connected with the camera. The measuring method comprises the following steps of: due to the comprehensive utilization of the principles of a laser trigonometry and an optical imaging method, placing the laser slantways to irradiate on the side of a tested object to form a light band; filtering stray light except for the laser wavelength by using the optical filter; and then imaging the light band on a CCD target surface to obtain the thickness value of the tested object through image treatment. Compared with the laser thickness-measuring instrument adopting the double-laser triangle measurement, the laser measuring device has the advantages of convenient installation and great reduction in the high-temperature thermal radiation influence by the tested object.
Owner:HUAZHONG UNIV OF SCI & TECH

Runoff type supercharger turbine rotating shaft structure and molding process thereof

The invention relates to a runoff type supercharger turbine rotating shaft structure and a molding process thereof. The runoff type supercharger turbine rotating shaft structure comprises a turbine, a rotating shaft and a self-locking ring, the turbine is provided with an internal thread blind hole, a polished hole, a ring slot and a guide chamfer, the rotating shaft is provided with an external thread, a positioning shaft shoulder, a polished shaft and a ring slot, and the self-locking ring is an elastic opening ring and is provided with a guide chamfer. By reasonably determining the structure sizes of the turbine, the rotating shaft and the self-locking ring, the turbine, the rotating shaft and the self-locking ring are machined, and then the turbine, the rotating shaft and the self-locking ring are assembled to further form a complete turbine rotating shaft. By means of the runoff type supercharger turbine rotating shaft structure and the molding process, the problems in turbine rotating shaft connection when new materials such as ceramic and a titanium-aluminum alloy are adopted in the supercharger turbine can be effectively solved, reliable connection of the supercharger turbine rotating shaft can be achieved, and the connecting strength and rigidity of the turbine rotating shaft are sufficiently guaranteed.
Owner:CHINA NORTH ENGINE INST TIANJIN
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