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16results about How to "Improve imaging stability" patented technology
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Optical imaging lens
PendingCN119439455ACorrection of off-axis aberrationsImprove imaging stabilityMountingsFocusing aidsOphthalmologyOptical axis
The invention discloses an optical imaging lens which comprises a lens cone, a lens group and a spacing element group, and the lens group and the spacing element group are arranged in the lens cone. The lens group sequentially comprises a first lens with negative focal power, a second lens with focal power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power and a sixth lens with negative focal power from the object side to the image side along the optical axis. The image side surfaces of the second lens, the third lens and the fifth lens are convex surfaces. The object side surface and the image side surface of the fourth lens are convex surfaces or concave surfaces. The spacing element group includes a first spacing element. The optical imaging lens satisfies the following conditions:-3.45 lt; r1 / flt; 2.75 and 0.75 lt, 0.75 lt; 2 * Yc11 / d1slt; 1.25, 1.25; wherein R1 is the curvature radius of the object side surface of the first lens, f is the effective focal length of the optical imaging lens, Yc11 is the distance from the inflection point farthest from the optical axis in the effective diameter of the object side surface of the first lens to the optical axis, and d1s is the maximum inner diameter of the object side surface of the first spacing element in the direction perpendicular to the optical axis.
Owner:ZHEJIANG SUNNY OPTICAL CO LTD
Thermal printer with mainboard configured on cover body
ActiveCN222591013UEasy to installImprove transmission stabilityComputer printingStructural engineering
The utility model provides a thermal printer with a cover body configured with a mainboard, which comprises a base, a cover body, a rubber roller, a thermosensitive sheet and a main control circuit board, the cover body is arranged above the base, a first hinge part of the cover body is hinged to a second hinge part of the base, the rubber roller is arranged on the base, the thermosensitive sheet is arranged on the cover body, a paper outlet is formed between the base and the cover body, and the main control circuit board is arranged on the base. The thermosensitive sheet and the rubber roller are close to the paper outlet and are opposite to each other to form a paper feeding channel; the paper feeding channel is communicated with the paper outlet; a mounting groove is formed in the side, away from the thermosensitive piece, of the cover body, the main control circuit board is located in the cover body and mounted in the mounting groove, the main control circuit board is close to the first hinge part, the thermosensitive piece is connected with the main control circuit board through a control flat cable, and the control flat cable is located in the cover body. The main control circuit board is close to the thermosensitive sheet, so that the control flat cable distance between the thermosensitive sheet and the main control circuit board is reduced, the reduction of the line length means that the voltage drop is reduced, the transmission stability of printing data is improved, and then the imaging stability is improved.
Owner:ZHUHAI HAOSHENG LABEL PRINTER CO LTD
An optical lens with stable imaging
ActiveCN114815151Bimprove clarityImprove imaging stabilityOptical elementsOphthalmologyOptical power
The present invention relates to the field of optical lenses, and relates to an optical lens with stable imaging, which comprises, from the object side to the image side, a first lens with negative optical power, a second lens with negative optical power, a third lens with positive optical power, a fourth lens with negative optical power, and a fifth lens with positive optical power, and a stop is also provided between the third lens and the fourth lens, wherein: the convex surface of the first lens and the second lens faces the object side, and the concave surface faces the image side; the convex surface of the fourth lens faces the object side, and the concave surface faces the image side; wherein the focal length value F4 of the fourth lens and the focal length value F5 of the fifth lens satisfy |F4 / F5|≤0.92. In this way, the present invention reasonably distributes the optical power of each lens, so that the lens has a small defocus offset under high and low temperature conditions, and the MTF is more uniform, so that the lens can obtain good clarity under high or low temperature environments, and can better adapt to harsh environments.
Owner:HUIZHOU XINGJUYU INTELLIGENT TECH CO LTD
A transformer frame detection device
This utility model discloses a transformer skeleton detection device, comprising: a conveyor belt, a guiding mechanism, a limiting component, and a moving component. The upper end of the conveyor belt is provided with a guiding mechanism for guiding the transformer skeleton. The conveyor belt is also provided with a limiting component for limiting defective transformer skeletons. The moving component removes the defective transformer skeleton from the conveyor belt. This utility model, by providing a guiding mechanism for guiding the transformer skeleton, has an adjustable width function to accommodate transformer skeletons of different sizes, facilitating the detection of transformer skeletons of different sizes and improving the device's adaptability. Simultaneously, the guiding mechanism has an automatic alignment and correction mechanism to ensure that the transformer skeleton is always centered during transport, avoiding detection errors or jamming due to tilting or offset during transport, and improving the imaging stability of the CCD inspection camera.
Owner:CHENGDU HONGYUANDA ELECTRONICS CO LTD
Thermal printer with cover body and seat body matched wiring
The utility model provides a thermal printer with a cover body and a seat body matched with wiring, which comprises a base, a cover body, a rubber roller, a thermal sensitive sheet and a main control circuit board, the base comprises a lower inner seat and an outer bottom shell, the cover body comprises an upper inner seat and an outer cover shell, a first arc-shaped groove is arranged in the base, a second arc-shaped groove is arranged in the cover body, and the thermal sensitive sheet is arranged in the first arc-shaped groove. The supporting arm is rotatably arranged in the first arc-shaped groove, so that a power cable and a data cable penetrate through the first wire port, the first arc-shaped groove, the second arc-shaped groove and the second wire port to be connected with the main control circuit board, rotation of the cover body is more stable, and communication of the first arc-shaped groove and the second arc-shaped groove is not affected by rotation of the cover body; and the wiring of the power supply cable and the data cable is more stable.
Owner:ZHUHAI HAOSHENG LABEL PRINTER CO LTD
Optical imaging lens
The invention discloses an optical imaging lens, the optical imaging lens comprises a lens barrel, and a lens group and a spacing element group which are arranged in the lens barrel, and the lens group comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in sequence from an object side to an image side along an optical axis; the spacing element group includes a first spacing element and a second spacing element. The object side surface of the first lens is convex, and the image side surface is concave; the second lens element has a convex object-side surface and a convex image-side surface. The optical imaging lens satisfies the following conditions: 0.80 lt; r2 / R1lt; 2.95 and 0.75 lt, 2.95 and 0.75 lt; r1 / R3 * (d1s / d2s) lt; 4.05% of the total weight; wherein R1 is the curvature radius of the object side face of the first lens, R2 is the curvature radius of the image side face of the first lens, R3 is the curvature radius of the object side face of the second lens, d1s is the maximum inner diameter of the object side face of the first spacing element in the direction perpendicular to the optical axis, and d2s is the maximum inner diameter of the object side face of the second spacing element in the direction perpendicular to the optical axis.
Owner:ZHEJIANG SUNNY OPTICAL CO LTD
A method and system for testing the stability accuracy of an optoelectronic pod based on stability performance analysis
ActiveCN119085715BReduce processing complexityImprove imaging stabilityImage analysisMeasurement devicesOptical axisTested time
The present invention relates to the field of optoelectronic pod testing technology, and is a method and system for testing the stability accuracy of an optoelectronic pod based on stability performance analysis, comprising: within an effective test duration, using an optoelectronic pod to be tested to shoot a test target board to obtain a test target board image set, extracting test target board images in the test target board image set in sequence, converting the test target board image into a grayscale target board image, performing rectangular cutting on the grayscale target board image to obtain a cut target board image, determining the test center coordinates based on the cut target board image, calculating the offset of the optoelectronic pod to be tested according to the test center coordinates to obtain an optical axis offset angle, performing azimuth offset analysis on the optoelectronic pod to be tested to obtain an azimuth offset angle group, summarizing the optical axis offset angle and the azimuth offset angle group to obtain a stability performance information set, and obtaining a stability accuracy test table according to the stability performance information set. The present invention can improve the accuracy and versatility of the stability accuracy test of the optoelectronic pod.
Owner:BEIJING FUJIRUI OPTOELECTRONICS TECH CO LTD
A device for optimizing the ultrasound image of the stomach filling
The application provides a stomach filling ultrasonic image optimization device, and relates to the technical field of medical devices and ultrasonic image auxiliary. The stomach filling ultrasonic image optimization device comprises a fixing bandage, an adaptive pressurizing assembly is arranged in the middle of the fixing bandage, an acoustic coupling assembly is connected to the bottom of the adaptive pressurizing assembly, an ultrasonic probe adaptive module is arranged in the acoustic coupling assembly, a main control unit is fixedly connected to the inside of the adaptive pressurizing assembly, and the main control unit is electrically connected with the adaptive pressurizing assembly and an ultrasonic host through wires. In the application, accurate positioning and hands-free are realized through probe preset locking and bandage fixing, water bag adaptive fitting, micro exhaust groove bubble removal and acoustic coupling optimization, image analysis and mechanical feedback double-driven closed-loop automatic pressure searching, and the pressure reaches the safety upper limit to force shutdown, and the imaging quality and examination safety are considered.
Owner:BOXING COUNTY TRADITIONAL CHINESE MEDICINE HOSPITAL
Thermal printer capable of opening cover in labor-saving manner
Owner:ZHUHAI HAOSHENG LABEL PRINTER CO LTD
A fast quantitative differential interference microscopy system and method based on holographic recording
ActiveCN120404725BSimple structureImprove imaging stabilityMaterial analysis by optical meansMicroscopesSpatial light modulatorTemporal resolution
This invention discloses a rapid quantitative differential interferometry microscopy system and method based on holographic recording. The system includes a partially coherent illumination module and, sequentially arranged along the optical axis of the partially coherent illumination module, a microscope objective, a microscope tube lens, a transmission grating, a first linear polarizer, a first thin lens, a half-wave plate, a light-shielding plate, a phase-type spatial light modulator, a second thin lens, a second linear polarizer, and an image acquisition module. This invention utilizes a phase-type spatial light modulator to achieve shear shifts in any direction and to any degree, making it suitable for various applications. The system uses the grating carrier frequency to achieve holographic recording of differential interferometry, enabling quantitative differential interferometry detection of the sample using only two acquired images. It exhibits very high temporal resolution, spatial resolution, and imaging accuracy, showing broad application prospects in biological imaging and industrial detection.
Owner:QINGHAI UNIVERSITY +1
Physiological gating system for nuclear magnetic resonance environment
PendingCN121943259AImprove real-time performanceImprove imaging stabilityRespiratory organ evaluationSensorsWireless transmissionNMR - Nuclear magnetic resonance
The invention discloses a physiological gating system for a nuclear magnetic resonance environment, and belongs to the field of human body physiological signal acquisition and nuclear magnetic resonance gating. Comprising a physiological signal acquisition module and a physiological signal processing module, the physiological signal acquisition module and the physiological signal processing module are both controlled by an FPGA, and data are wirelessly transmitted between the physiological signal acquisition module and the physiological signal processing module; the physiological signal acquisition module comprises an electrocardio acquisition module, a pressure sensor module, a photoelectric blood oxygen acquisition module, an acquisition module FPGA (Field Programmable Gate Array) and a wireless communication module; the physiological signal processing module comprises a processing module FPGA, a wireless receiving module and a gating output interface. The physiological gating system for the nuclear magnetic resonance environment has the beneficial effects that the physiological gating system for the nuclear magnetic resonance environment is provided, synchronous acquisition of three physiological signals of electrocardio, respiration and blood oxygen is realized, a multifunctional fusion gating strategy is adopted, and the imaging stability is improved.
Owner:ALLTECH MEDICAL SYST
A high-resolution microscope objective with a large numerical aperture and a wide field of view
PendingCN122568758AReasonable power distributionImprove imaging stability
This invention discloses a high-resolution microscope objective with a large numerical aperture and a wide field of view, comprising a front converging group with positive optical power, an aberration correction group with negative optical power, and a rear imaging telecentric group with positive optical power arranged sequentially from the object side to the image side. The front converging group is responsible for the initial convergence of object-side rays, laying the foundation for large field of view and high numerical aperture imaging. The aberration correction group is the core of the system's aberration correction, which can effectively correct field curvature, distortion, and chromatic aberration. The rear imaging telecentric group is responsible for the final high-performance imaging and ensures the telecentric characteristics of the object side. It simultaneously achieves flat field, low distortion, and apochromatic aberration under an ultra-wide field of view to ensure the imaging quality of the objective and can better meet the wide field of view and high-resolution precision measurement needs of fields such as semiconductor detection.
Owner:MOONLIGHT (NANJING) INSTR CO LTD
A display screen common voltage regulation method and system
ActiveCN118692411Breduce flickeringImprove imaging stabilityStatic indicating devicesCapacitanceLiquid-crystal display
The present invention discloses a method and system for adjusting the common voltage of a display screen, and relates to the field of liquid crystal display technology, including: establishing a charging effect distance model for a single gate line, and establishing a resistance and capacitance delay model for a single gate line; obtaining the voltage maintenance time of the pixel electrode of the gate line; obtaining the output positive voltage and the output negative voltage of the gate line; obtaining the first real-time output positive voltage and the first real-time output negative voltage of the pixel electrode of the sampling liquid crystal molecule corresponding to the sampling point; calculating the delay effect of the resistance and capacitance on the pixel electrode of the gate line; calculating the display value of the common voltage at the time mark point; at the time mark point, adjusting the value of the common voltage to the display value. By setting a model building module, a data calculation module and a voltage adjustment module, the degree of picture flickering on the same gate line is as low as possible, thereby effectively improving the imaging stability of the display screen.
Owner:广东康海智能科技有限公司
A periscope camera module
The present application discloses a periscope camera module, which includes at least one optical lens, a lens barrel and at least one lens accommodated in the lens barrel, the lens barrel includes a lens barrel body and a support portion, the support portion protrudes from the lens barrel body along a first direction, the support portion includes a first surface and a second surface opposite to each other along a second direction, and an opening connecting the first surface and the second surface along the second direction, the second direction being perpendicular to the first direction; at least one lens seat, at least one optical lens is arranged on at least one lens seat, at least one lens seat includes a receiving groove facing the supporting portion, a gap is provided between the supporting portion and the receiving groove, and at least a part of the supporting portion is spaced between the gap and the opening; and a glue material is at least partially filled in the gap and the opening to fix at least one optical lens to at least one lens seat. Thus, the shrinkage phenomenon of the supporting portion itself is reduced while reducing the problem of stress concentration, effectively avoiding deformation of the lens barrel, and improving the imaging stability of the periscope camera module.
Owner:NINGBO SUNNY OPOTECH CO LTD
Handheld endoscope imaging method based on image restoration, endoscope and medium
InactiveCN119214569AImprove imaging stabilityImage enhancementImage analysisImaging qualityMagnification
The invention discloses a handheld endoscope imaging method based on image restoration, an endoscope and a medium. The method comprises the following steps: in response to a first image collected by the handheld endoscope under a preset magnification factor, automatically controlling the handheld endoscope to collect a second image under an original magnification factor; magnifying the second image according to a preset magnification factor to obtain a third image; respectively acquiring image quality of the first image and the third image; in response to the condition that the image quality of the third image is greater than that of the first image, performing image restoration on the first image to obtain a fourth image; and displaying the fourth image. In this way, the imaging stability of the amplified image is improved.
Owner:MEXIAI PRECISION INSTR (SUZHOU) CO LTD
Low-vibration and high-stability sub-micron CT freezing three-dimensional imaging device
The application relates to the field of X-ray three-dimensional imaging technology, in particular to a low-vibration high-stability submicron CT frozen three-dimensional imaging device. The application comprises an in-situ device base, a Dewar flask, a support disc, a hollow red copper pipe, a red copper bundle, a sample clamp hollow column, an adjustable sample clamp, a high-transparency imaging area module, a heat preservation movable cover and a temperature monitoring system. The Dewar flask is arranged on the in-situ device base and is used for storing liquid nitrogen. The support disc is fixed in the Dewar flask through screw threads, the support disc is provided with a support through hole, and the hollow red copper pipe is fixed in the support disc through a loose screw. The three-dimensional imaging device can significantly improve the imaging stability. The built-in Dewar flask and the double-path cooling design can eliminate external vibration, provide a stable environment for long-time and high-resolution scanning, and simplify the device. The laboratory safety and experimental efficiency are improved.
Owner:SHANGHAI JIAOTONG UNIV