38results about How to "Large imaging range" patented technology

A method of inspecting a lateral pipe extending from a manhole, said method comprising: (a) inserting an imaging head into said manhole using a positioning system, said imaging head connected to an elongated member and comprising an imaging device adapted to convert an image to an image signal, a lens optically coupled to said imaging device, and at least one lamp suitable for projecting a light beam, said lamp having a beam that is adjustable to enable said beam to move relative said imaging device; (b) imaging a target located within said lateral pipe; (c) holding said imaging device essentially steady while imaging said target and adjusting said beam to adjust the illumination of said target.

A method of inspecting a lateral pipe extending from a manhole, the method comprising: (a) extending an imaging head into the manhole using a positioning system, the imaging head comprising an imaging device and at least one lamp capable of producing a light beam, the positioning system comprising an elongated member and a targeting fixture operatively connected thereto, the imaging head being attached to one end of the elongated member, the targeting fixture having a distal end biased outwardly from the imaging head; (b) placing the distal end on a rigid surface proximate to the lateral pipe; (c) pushing down on the elongated member such that the distal end resiliently moves toward the imaging head, thereby allowing the light beam to be centered approximately in the lateral pipe; and (d) imaging a target located within the lateral pipe.

A method and apparatus are provided for a swept source optical coherence tomography (OCT) system utilizing a fast scanning mechanism in the sample arm and a slowly swept light source. The position data is collected rapidly while the wavelength of the source is swept slowly. The system reduces the sweep speed requirements of the light source enabling higher power, greater imaging range, and linear sweeps of the source frequency. The OCT components (or most of them) may be implemented within a hand held imaging probe. In operation, a triangulation scan may be used to orient the imaging probe with respect to a fixed coordinate system; preferably, OCT data captured by the device is then transformed to that same orientation with respect to the fixed coordinate system to improve the scanning results.

The application provides an optical imaging lens group. The optical imaging lens group comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens in sequence along an optical axis from an object side to an image side. The first lens has a focal power, the second lens has a positive focal power, the third lens has a focal powerand an image side surface thereof is a convex surface, the fourth lens has a negative focal power, the fifth lens has a focal power, the sixth lens has a focal power and an object side surface thereofis a concave surface and an image side surface thereof is a convex surface, the seventh lens has a positive focal power, and the eighth lens has a focal power.

The invention discloses a control optimization method used for a fire grate incinerator and based on flame radiation images. The control optimization method comprises the following steps that the waste combustion conditions of all subareas are shot in real time, and image noise is eliminated; the multiple flame images are acquired, and the average values of R, G and B of the obtained images are calculated; the average values of the R, the G and the B are input into a trained BP neural network, and temperature field distribution and the average temperature T of all fire grate combustion areas are obtained; and the obtained flame average temperature T of all the combustion areas and a preset temperature range are compared and judged, and accordingly the feeding speed of all the combustion areas, the primary air volume and the secondary air volume are adjusted correspondingly. The invention further discloses a control optimization device used for the fire grate incinerator and based on the flame radiation images. According to the control optimization method used for the fire grate incinerator and based on the flame radiation images, temperature fields of waste flame on all subarea fire grates can be quickly rebuilt in real time; by adjusting the combustion parameters of all the subarea fire grates correspondingly, real-time optimal control over waste burning uniformity and efficiency is achieved.

A method and apparatus are provided for a swept source optical coherence tomography (OCT) system utilizing a fast scanning mechanism in the sample arm and a slowly swept light source. The position data is collected rapidly while the wavelength of the source is swept slowly. The system reduces the sweep speed requirements of the light source enabling higher power, greater imaging range, and linear sweeps of the source frequency. The OCT components (or most of them) may be implemented within a hand held imaging probe. In operation, a triangulation scan may be used to orient the imaging probe with respect to a fixed coordinate system; preferably, OCT data captured by the device is then transformed to that same orientation with respect to the fixed coordinate system to improve the scanning results.

The invention provides a pitch angle imaging method based on vortex electromagnetic waves, and belongs to the field of radar target imaging. The traditional method is based on electromagnetic wave amplitude scanning, the amplitude scanning range of the traditional method is limited by the working bandwidth of an antenna, and is different from the traditional pitch angle imaging based on vortex electromagnetic waves. The pitch angle imaging method based on vortex electromagnetic waves can work at a single frequency point based on the phase information of an echo signal, so that the pitch angleimaging range is wide, and the requirement on the bandwidth of the antenna is low. The accuracy of amplitude scanning of the traditional method depends on the width of an electromagnetic beam, and thenarrower the electromagnetic beam is, the higher the imaging accuracy is, but the narrower electromagnetic beam is difficult to realize. The imaging precision of the pitch angle imaging method basedon vortex electromagnetic waves depends on the grid thickness during discretization of the pitch angle, and the imaging precision can be effectively improved by adopting thinner grids. The pitch angleimaging method based on vortex electromagnetic waves can realize the measurement of the pitch angle of 5-85 degrees, has wide measurement range, and has the imaging error lower than 1.2 degrees in the range of the pitch angle of 5-85 degrees.

The invention discloses an optical system, a lens module and electronic equipment. The optical system includes, in order from an object side to an image side along an optical axis direction, first tofifth lenses having refractive power, wherein the first and fourth lenses have positive refractive power, and the fifth lens has negative refractive power; object side surfaces of the first to fourthlenses and an image side surface paraxial region of the fourth lens are convex surfaces, and image side surface paraxial regions of the first to third lenses are concave surfaces; the object side surface and the image side surface of the fifth lens are aspheric surfaces, at least one of the object side surface and the image side surface of the fifth lens is provided with at least one inflection point, and the optical system satisfies the conditional expression: 0.2< / =IMGH / OBJH< / =0.8. By arranging the five-piece lens structure, the refractive power of the five optical lenses and the surface type of the paraxial region are reasonably configured, and the optical system meets the relational expression, so that the optical system has a wider imaging range and higher magnification, and is easy to miniaturize.

The invention discloses a railway crossing remote centralized control and intelligent early warning integrated system. The system comprises a dispatching center control subsystem, a dispatching center video / audio subsystem, a crossing field front-end device subsystem and an optical fiber communication subsystem. The dispatching center video / audio subsystem is connected with the dispatching center control subsystem. The crossing field front-end device subsystem is connected with the dispatching center control subsystem through the optical fiber communication subsystem. The dispatching center control subsystem comprises a control server and a communication controller, achieves monitoring and control over all devices of the other three subsystems and completes remote control command for dispatching operators. The dispatching center video / audio subsystem comprises a video image display module and a video / audio storage device matrix. Remote videos, remotes audios and remote control are centralized and integrated into the system, the efficiency is improved, the operation is facilitated, and the system is safer and more reliable.

The invention provides an ultrasonic puncture guidance device and ultrasonic puncture guidance equipment, and relates to the field of medical instruments. The ultrasonic puncture guidance device comprises a puncture needle tube and an ultrasonic transducer; puncture needle head is arranged at one end of the puncture needle tube; the ultrasonic transducer is contained in the puncture needle tube, and extends to the position of the puncture needle head; the ultrasonic transducer comprises a plurality of ultrasound array elements which are used for launching and receiving ultrasound; and the plurality of ultrasound array elements are arranged at the puncture needle head. During practical use, the plurality of ultrasound array elements are used for carrying out electronic scanning imaging, sothat, wide imaging range can be achieved; and thus, tissue structure in front of the puncture needle head can be effectively recognized, thereby facilitating planning of the best puncture path. Compared with the prior art, the ultrasonic puncture guidance device provided by the invention is closer to imaged tissues, so that, clearer imaging can be achieved; and thus, imaging is not liable to be affected by blocking by other parts. Moreover, the ultrasonic puncture guidance device is convenient to operate; and collaboration of multiple medical stuffs is not required.

The invention discloses a large-view-field wide-spectrum achromatic coupling objective lens, which comprises a first lens group and a second lens group which are coaxially arranged in sequence from an object side to an image side, the first lens group has negative focal power and is composed of a first balsaming lens and a second balsaming lens which are sequentially and coaxially arranged from the object side to the image side. The second lens group has positive focal power and is composed of a third balsaming lens, a fourth balsaming lens and a meniscus lens which are sequentially and coaxially arranged from the object side to the image side. Specific parameters of each lens group and each lens are adjusted, so that the numerical aperture of the coupling objective lens is matched with the numerical aperture of an optical fiber bundle, meanwhile, achromatic design is performed on exciting light of 488 nm and fluorescence spectrum of 500-600 nm, and other aberrations are balanced, so that the coupling efficiency and sensitivity of the system are improved, the working distance reaches 6 mm, and the optical fiber coupling system has a wide application prospect. The imaging field of view reaches 1 mm, and diffraction limited imaging is provided in a large field of view and a wide spectral range.

The invention discloses an organic small molecule dye, and discloses a preparation method and application of the dye and J aggregation nanoparticles thereof. The J aggregation nanoparticles are prepared by a nano coprecipitation method based on an organic small molecule dye and an amphiphilic polymer. The nanometer diagnosis and treatment particles with the maximum optical absorption and the maximum fluorescence emission in an NIR-II area are prepared through the unique property of J aggregation, meanwhile, the fluorescence emission wavelength of the nanometer particles can extend to the NIR-IIb area, and the nanometer diagnosis and treatment particles can be applied to high-resolution imaging of living blood vessels and tumors excited by 1064 nm laser. The nanoparticles can generate photo-thermal and photodynamic properties under 1064nm laser irradiation, so that the nanoparticles can be applied to combined treatment of deep tumors, the treatment effect is remarkably improved, and the nanoparticles have good clinical application prospects.

The invention discloses a method for detecting defects in at least one article, the method comprising the steps of: acquiring, via an image acquisition module (104), at least one image of an article in a production line; processing the acquired image via artificial intelligence (106) to determine whether any defect is present in the item; discharging defective items from a former in the productionline via a purge system (105); and updating the result to the artificial intelligence (106) for subsequent detection. The artificial intelligence (106) trains its dataset using a neural network by performing an iterative training process to create at least one data classification from a plurality of pre-stored images; and generating a weight formula according to the data classification so as to evaluate the data of the acquired image.

The invention discloses a small wide-angle high and low temperature day and night confocal lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and an optical filter which are sequentially arranged from an object side to an image side along an optical axis; the first lens is a convex-concave spherical lens with negative focal power; the second lens is a concave-convex aspherical lens with positive focal power; the third lens is a concave-convex aspherical lens with positive focal power; the fourth lens is a biconvex spherical lens with positive focal power; the fifth lens is a biconcave aspherical lens with negative focal power; and the sixth lens is a biconvex aspherical lens with positive focal power. The lens has a large aperture, can realize clear imaging under weak light, has a large field angle, low distortion and high image trueness, has an imaging effect of 5million pixels, meets day and night sharing requirements, and is stable in working performance, small in overall size, low in cost and wide in application range in an environment of -40 DEG C to + 70 DEG C.

The invention discloses an esophagus internal intubation tube detection device and relates to the technical field of medical equipment. The esophagus internal intubation tube detection device comprises a supporting mechanism, a hinging mechanism, an imaging mechanism, a lead-in mechanism, a power mechanism, a detection mechanism and a transmission mechanism; the imaging mechanism is hinged with the upper surface of the supporting mechanism through the hinging mechanism; the right end of the lead-in mechanism is in inserting connection with the left side surface of the imaging mechanism; and the power mechanism, the transmission mechanism and the detection mechanism are positioned at the left end of the lead-in mechanism. According to the esophagus internal intubation tube detection device,through cooperative work of the power mechanism and the transmission mechanism, angle adjustment of a camera in the detection mechanism can be realized; through a controller in the imaging mechanism,the working state of the power mechanism is controlled, the angle of the camera can be adjusted rapidly and the imaging range is wider; and multi-angle image information acquisition in an esophagus of a patient can be realized without rotating a detection hose, so that the discomfort of the patient can be reduced.

A method of inspecting a lateral pipe extending from a manhole, the method comprising: (a) extending an imaging head into the manhole using a positioning system, the imaging head comprising an imaging device and at least one lamp capable of producing a light beam, the positioning system comprising an elongated member and a targeting fixture operatively connected thereto, the imaging head being attached to one end of the elongated member, the targeting fixture having a distal end biased outwardly from the imaging head; (b) placing the distal end on a rigid surface proximate to the lateral pipe; (c) pushing down on the elongated member such that the distal end resiliently moves toward the imaging head, thereby allowing the light beam to be centered approximately in the lateral pipe; and (d) imaging a target located within the lateral pipe.

An image processing apparatus according to the present invention includes: an obtaining unit configured to obtain a brightness range value; and a generating unit configured to generate a display-image data on the basis of the brightness range value obtained by the obtaining unit, wherein the generating unit generates the display-image data on the basis of two or more of first image data, second image data, and brightness difference data such that, when the brightness range value obtained by the obtaining unit is within a predetermined range, a maximum gradation value of the dynamic range of the generated display-image data steadily approaches a maximum gradation value of the dynamic range of the first image data as the brightness range value obtained by the obtaining unit decreases.

The application discloses a high-illumination projection assembly and a welcome lamp, which comprise an illumination lens group, an imaging lens group and a shell assembly; the imaging lens group comprises, in sequence from the image side to the object side, a first lens with positive refractive power, a second lens with negative refractive power and a third lens with positive refractive power; the imaging lens group has three lenses with refractive power; the illumination lens group comprises, in sequence from the image side to the object side, a fourth lens with positive refractive power and a fifth lens with positive refractive power; the imaging lens group satisfies the following conditional expression: 54.115mm < f123 / tan (Semi-Fov1) < 134.382mm; the imaging range of the imaging lens group can be wide, the pattern projected by the projection assembly has higher recognition and the imaging is clearer.

The present invention provides a terahertz ground detection system for detecting the safety of the bottom of a vehicle, comprising a terahertz exciter, a terahertz detector, a near-infrared detection system and a data processing system, wherein the terahertz exciter and the terahertz detector are both arranged underground; the terahertz exciter generates terahertz waves by excitation, which are emitted to a target vehicle, and the terahertz signal reflected by the bottom of the target vehicle is transmitted to the terahertz detector, and the terahertz detector generates terahertz spectrum information according to the terahertz signal reflected by the bottom of the target vehicle, and transmits the information to the data processing system for processing, generates a corresponding relationship between the terahertz spectrum information and an unidentified object at the bottom of the target vehicle, and displays the result on a computer; after the near-infrared detection system detects the target vehicle information, the information is sent to the data processing system. The present invention also provides a detection method for a terahertz ground detection system. The present invention can detect bombs hidden at the bottom of a vehicle, and the detection result is accurate.

Embodiments of the present invention provide a method for a portable electronic device and the portable electronic device. The portable electronic device includes: in response to receiving a scanning trigger signal, controlling the portable electronic device to start capturing images of the scanning medium; in response to receiving a scanning end signal, controlling the portable electronic device to stop capturing images of the scanning medium; Wherein during controlling the portable electronic device to capture the image, there is at least one time period, and it is detected that the portable electronic device leaves the scanning medium during the at least one time period. According to the method of the present invention, the portable electronic device can obtain a larger range of images during image acquisition, and does not require the user to perform complex operations such as long-pressing and moving, thereby reducing the requirements for user operations and bringing better results to users. experience.

The invention provides a puncture ultrasonic guiding device and a puncturing ultrasonic guiding device, which relate to the field of medical instruments. The puncturing ultrasonic guiding device includes a puncture needle tube and an ultrasonic transducer. The container is accommodated in the puncture needle tube and extends to the puncture needle, and the ultrasonic transducer includes a plurality of ultrasonic array elements for transmitting and receiving ultrasonic waves, and the plurality of ultrasonic array elements are arranged on the At the puncture needle. In actual use, by using multiple ultrasonic array elements for electronic scanning imaging, the imaging range is wide, and the tissue structure at the front end of the puncture needle can be effectively identified, thereby facilitating the planning of the best puncture path. Compared with the prior art, the puncture ultrasonic guiding device provided by the present invention is closer to the imaged tissue, the imaging is clearer, it is not easy to be blocked by other parts to affect the imaging, and the operation is convenient without the cooperation of multiple medical staff.

The invention provides an intelligent scanning device. The intelligent scanning equipment comprises a shell and a camera module, the shell is internally provided with a main control assembly, a pressure sensing assembly electrically connected with the main control assembly and a sensor, the front end of the shell is provided with a through hole in the vertical direction, the front side of the hole is provided with a first cross beam formed at the front end of the shell, and the first cross beam is provided with a trigger assembly; the front end of the shell is provided with a pressure-sensitive assembly, the trigger assembly abuts against the pressure-sensitive assembly, and the intelligent scanning equipment is configured to respond to the trigger assembly to abut against the scanning medium so as to apply acting force to the pressure-sensitive assembly to generate a scanning trigger signal; after receiving the scanning trigger signal, the main control assembly controls the camera module to start to collect an image of the scanning medium; and in response to the trigger assembly leaving the scanning medium, the main control assembly controls the camera module to continuously collect the image of the scanning medium in the expanded shooting view. And through the intelligent scanning equipment, the recognition capability is improved, the energy consumption is reduced, and the possibility of false starting is reduced.

The invention provides an optical imaging lens. The optical imaging lens sequentially comprises: from the object side of the optical imaging lens to the image side of the optical imaging lens along an optical axis,plain glass; a first lens, wherein the image side surface of the first lens is a concave surface; a second lens; a third lens; and a fourth lens with negative focal power. The half Semi-FOV of the maximum field angle of the optical imaging lens meets the condition: Semi-FOV> 40 DEG C; the effective focal length f1 of the first lens and the combined focal length f23 of the second lens and the third lens meet the following formula:-1.0< f23 / f1< -0.5. The optical imaging lens solves the problem that in the prior art, an optical imaging lens cannot shoot detail images clearly.

The invention provides an electron microscope for three-dimensional imaging and a three-dimensional imaging method, and relates to the technical field of electron microscopes, the electron microscope for three-dimensional imaging comprises an ion gun, a sample table and a baffle plate located between the ion gun and the sample table, the position of the sample table and / or the baffle plate can be adjusted in parallel, and the sample table and / or the baffle plate can be adjusted in parallel. Therefore, the baffle can adjustably shield an ion beam emitted by the ion gun to a sample on the sample table. Thus, an ion beam emitted by the ion gun bombards the part, not shielded by the baffle, of the sample to form a plane, after plane imaging is finished, a new unshielded part is formed on the sample by adjusting the position of the sample table and / or the baffle in parallel, bombardment continues to be conducted through the ion beam, a new plane is formed on the sample, and then imaging of the plane is completed. The new plane is parallel to the last plane, and the steps are repeated to stack the images of the plurality of planes to form three-dimensional imaging.

The invention discloses a wafer sealing ring detection device, which comprises a light path unit and an image processing unit, and is characterized in that the light path unit comprises a plurality of light path emission parts distributed in an annular array and light path reflection parts which are aligned by taking the center of the annular array as a reference; the image processing unit comprises a visual camera and an image processor which are aligned with the center of the light path reflection component and located below the light path reflection component. On one hand, the contour information of the sealing ring is obtained section by section when the sealing ring is kept in a dynamic state, the complete sealing ring contour image is obtained based on splicing of the contour information of all the sections, interference of external factors is effectively reduced, the imaging quality is high, meanwhile, image comparison inspection can be conducted during splicing of the multiple sections of images, and the detection precision is improved; and on the other hand, through the cooperation of the light path emission part and the light path reflection part, a wider imaging range can be realized in a narrow space, the device can be conveniently integrated in any wafer processing equipment, the rapid detection of the sealing ring is realized, and the production efficiency is improved.

A multiple-degree-of-freedom near-field optical microscope based on a micro-nano motion arm comprises the micro-nano motion arm, a quartz tuning fork, a near-field optical probe, a sample scanning stand, a sinusoidal signal generator, a preposed lock-in amplifier, a control box and a detector and / or a light source, wherein the quartz tuning fork is fixed at the front end of the micro-nano motion arm; the near-field optical probe is fixed on one tuning fork arm of the quartz tuning fork; the sample scanning stand is positioned under the quartz tuning fork; the signal output end of the sinusoidal signal generator is connected with the input end of the quartz tuning fork; the input end of the preposed lock-in amplifier is connected with the output end of the quartz tuning fork; the input end of the control box is connected with the output end of the preposed lock-in amplifier, one output end of the control box is connected with the input end of the micro-nano motion arm, and the other output end of the control box is connected with the input end of the sample scanning stand; and the detector and / or the light source are / is connected with the near-field optical probe. The multiple-degree-of-freedom near-field optical microscope has an optical resolution capability beyond the diffraction limit as well as large-scale mobile flexibility and multi-degree-of-freedom operation capability, occupies a small space, and is very convenient to be combined with other microscopic characterization methods.

The present invention provides an above-ground building recognition method, including the following steps: (1) taking an infrared image of the ground from the air; (2) performing detection and positioning in the infrared image to determine a suspected target; (3) aiming at the suspected target to perform laser imaging; (4) performing range gating on a laser image to filter out foreground and background interference; and (5) extracting a shape feature of the suspected target from the laser image with interference filtered out, and taking the shape feature as a target matching element to perform matching with a target shape feature template, so as to recognize the target. In the method of the present invention, laser imaging is integrated into infrared imaging target positioning, so that an advantage of a large range of infrared imaging is utilized, and three-dimensional range information of laser imaging is also utilized, thereby effectively improving the precision of positioning a building.