213 results about "Liquid lens" patented technology

A dynamic vision system includes a variable focus liquid lens optical assembly. The dynamic vision system includes a variable lighting assembly. The dynamic vision system includes a control system configured to adjust one or more optical parameters and data collected from the variable focus liquid lens optical assembly in real time. The dynamic vision system includes a control system configured to adjust the variable lighting assembly. The dynamic vision system includes a processing system that dynamically learns on a training set of outcomes, parameters, and data collected from the variable focus liquid lens optical assembly to train a set of machine learning models to control the variable focus liquid lens optical assembly to optimize collection of data for processing by the set of machine learning models.

This invention provides a liquid lens and a rapid focusing method using the liquid lens, belonging to the field of focusing device technology. The liquid lens includes: a feature determination module for real-time acquisition of the current visibility features of all monitored objects within the current field of view of the liquid lens; a focus determination module for determining the current target focus position of the liquid lens based on the current visibility features and focusing habit data of all monitored objects within the current field of view of the liquid lens; a curvature calculation module for calculating the target curvature of the liquid lens based on the current target focus position; and a curvature control module for setting the output current of the curvature control device of the liquid lens based on the target curvature of the liquid lens to obtain a rapid focusing result of the liquid lens. This allows for the reasonable determination of the focus position based on the user's focusing habits when multiple monitored objects exist within the field of view of the liquid lens, and enables rapid focusing control of the liquid lens.

The invention provides a multi-target adaptive optical tracking method and system for an unmanned intelligent turntable. The method comprises the following steps: acquiring a video stream and turntable attitude data on an unmanned intelligent turntable; carrying out scene understanding operation on the video stream, fusing the dynamic attention area and extracting spatial distribution information of a plurality of moving targets in a rotary table coordinate system; calculating an optical deformation parameter of the liquid lens, and driving the liquid lens to execute non-uniform optical curved surface adjustment, so that a focus area simultaneously covers a plurality of spatially dispersed moving targets; receiving distance data fed back by the distance measuring equipment, carrying out cross validation on the distance data and actual optical parameters of the adjusted liquid lens, and generating a cooperative calibration instruction when the deviation exceeds the tolerance; and synchronously updating the dynamic region of interest identification logic of scene understanding and an optical deformation parameter calculation strategy according to the instruction. According to the invention, the stability and spatial positioning precision of multi-moving-target tracking in a wide-area complex scene are improved.

The invention discloses a near-infrared confocal microscopic imaging system and a near-infrared confocal microscopic imaging method, and relates to the technical field of optical microscopic imaging. The method comprises the following steps that near-infrared exciting light sequentially passes through a beam expanding system, a liquid lens and a confocal scanning light path to irradiate a to-be-detected sample so as to generate a near-infrared fluorescence signal, and the liquid lens is used for adaptively adjusting the focal length and wavefront morphology according to the depth of the to-be-detected sample; a photomultiplier detects the near-infrared fluorescence signal after non-focus scattered light is filtered out through the confocal scanning light path and the pinhole, and a fluorescence signal image is obtained; and according to the fluorescence signal image, carrying out iterative optimization on the focal length and phase modulation parameters of the liquid lens to maximize the image sharpness or the signal-to-noise ratio and realize the three-dimensional microscopic imaging of the deep tissue. According to the near-infrared confocal microscopic imaging method provided by the invention, deep near-infrared microscopic imaging with low phototoxicity, low cost and high resolution can be realized.

The invention relates to a membrane based fluidic lens (1,1') with a non-circular membrane (3,3') and a non-circular aperture, a partially flexible lens shaper (2, 2') for adjusting a focal length of the lens (1,1'), an actuation assembly to adjust the focal length and a means to inherently adjust for acceleration-induced aberrations.

The application provides a liquid lens focus stack imaging method, system and electronic equipment, and belongs to the technical field of optical imaging detection. The method comprises the following steps: a power supply module is controlled to provide a driving voltage for a liquid lens to form an image on a CMOS array; an image collected by the CMOS array is acquired, all images are aligned based on the image when the driving voltage is lowest, and an image sequence of a constant magnification focus stack is obtained; a focus state of the image sequence is evaluated, the image sequence is fused based on the focus state evaluation result, and a full-focus image is obtained; the object distance of the collected image is determined, a depth map is generated based on the object distance and the full-focus image, and a target image is generated based on the full-focus image and the depth map. The application aligns all collected images based on the image when the driving voltage is lowest, and solves the technical problem of low imaging accuracy existing in the existing focus stack imaging technology.

The utility model relates to a liquid lens zoom foggy vision system, training instrument and optometry unit, foggy vision system is equipped with eyepiece lens cone, front lens cone, rear lens cone and objective lens cone in proper order along the optical path, the front lens cone is equipped with first lens and second lens in proper order, the rear lens cone is equipped with liquid lens and third lens in proper order, and the objective lens cone is equipped with second lens and third lens in proper order. The front lens barrel and the rear lens barrel form a variable-focus liquid lens telescopic system; a foggy view image display panel is arranged in the objective lens barrel and used for playing foggy view animations. The system further comprises a controller, and the liquid lens, the objective lens cone and the fog view image display panel are electrically connected with the controller. According to the fogging system, the zoom lens can be controlled to zoom through a circuit, video animation is played in combination with the fogging image display panel, switching of different images is achieved, the zoom response is fast, a complex structure and switching images are not needed, the structure is simple and small, the attention of trainees is better attracted, and the fogging effect is improved.

The application discloses a digital slice scanning fast focusing system adopting a liquid lens, wherein a liquid lens, a left focusing camera and a right focusing camera are installed in the optical path of a digital slice scanner; the liquid lens is installed between an objective lens and an image-taking camera; the left focusing camera and the right focusing camera are respectively installed on the left side and the right side of the image-taking camera to collect focal plane images; a computer processing device is connected with the left focusing camera and the right focusing camera respectively to obtain a focal plane signal according to the focal plane images collected by the left focusing camera or the right focusing camera; the computer processing device is connected with a constant current source driver to send the focal plane signal; and the constant current source driver is connected with the liquid lens to send different driving currents to control the liquid lens to focus. The application adds two focusing cameras (the left focusing camera and the right focusing camera) to expand the focusing FOV to quickly obtain the focal plane signal, and then controls the liquid lens to quickly adjust to the focal plane.

Adaptive fashion glasses with universal vision correction, characterized by: - a liquid lens (1) with an adjustable diopter range from -6 to +4 - a rotatable astigmatism correction ring (4) with an adjustment range from 0° to 180° - a fashion eyeglass frame (2) made of acetate - an adjustment mechanism (3) for manual diopter adjustment - a touch sensor (5) in the bridge area - Multi-user capability through individual adjustability

The present disclosure relates to a liquid lens, an optical curve adjusting method thereof, a camera module and a terminal device. The liquid lens comprises a light-transmissive groove-shaped component, a liquid medium contained in the groove-shaped component, and an elastically deformable film encapsulating the groove-shaped component. The encapsulating part of the film corresponding to the groove of the groove-shaped component is a light-transmissive structure with unequal thickness. In use, the thickness of the local position of the deformable film is adjusted according to the required target optical curve, so as to be configured into a qualified structure with unequal thickness. Under the driving of external force, the film can be deformed to press the liquid medium, so as to obtain the same optical curve as the required target optical curve, thereby meeting the optical requirement.

The application discloses an optical adjustment method and device, a head-mounted device and a storage medium, and relates to the technical field of head-mounted devices. The optical adjustment method is applied to a head-mounted device, the head-mounted device comprises a liquid lens array and a scoring module, and the method comprises the following steps: after the curvature of the liquid lens array is adjusted based on target optical parameters of the head-mounted device, determining a target comfort score of a wearer by using the scoring module, wherein the target optical parameters are obtained by predicting a light parameter prediction model based on target biological feature data of the wearer, and the light parameter prediction model is obtained by training biological feature data as a sample and optical parameters as a label; and based on the target comfort score, the curvature of the liquid lens array is calibrated. The application can reduce the VAC effect of the head-mounted device.

The application provides a liquid lens with a buffer structure and a preparation method and application thereof, the liquid lens comprises an upper electrode, an assembly hole is arranged in the upper electrode, a first light-transmitting plate and a buffer structure are arranged in the assembly hole; a lower electrode, a through hole is arranged in the lower electrode, a second light-transmitting plate is arranged in the through hole; a sealing ring is arranged between the upper electrode and the lower electrode and is used for sealing liquid; by arranging the buffer structure in the assembly hole of the upper electrode, the buffer structure can play a buffering role when the liquid is expanded due to temperature influence, the structural stability and service life of the lens are greatly enhanced, meanwhile, the preparation process and structure of the liquid lens are very simple, the production cost of the liquid lens can be effectively reduced, the manufacturing precision is increased, consistency is improved, and the liquid lens is more suitable for industrialized batch production.

The invention relates to the technical field of online monitoring of power equipment, in particular to a double-spectrum state monitoring method and device for a control cubicle, and the method comprises the steps: synchronously collecting a visible light image and an infrared thermogram in the control cubicle through beam splitter prisms with the same optical axis, and carrying out the target detection of the visible light image at an edge calculation end, so as to automatically recognize and position the ROI of a circuit breaker and a wiring terminal; the maximum temperature in each ROI is calculated based on the infrared thermogram, correction temperature T is obtained through correction by combining the ambient temperature and the ROI temperature historical average value, and when the correction temperature T exceeds a preset threshold value or the temperature rise rate exceeds a set limit value, graded early warning is triggered, and a visible light image superposed with a temperature identifier is transmitted. And periodic automatic focusing operation can be executed through the liquid lens to maintain the image definition within the depth of field of 50-500mm. According to the invention, continuous and accurate monitoring of the control cubicle can be realized, the timeliness of fault discovery is improved, and the labor cost is reduced.

The invention relates to an artificial eye optical system. The artificial eye optical system comprises an optical acquisition assembly and a signal sensing assembly, the optical acquisition assembly comprises a corneal lens group, an aperture diaphragm and a conventional lens group which are sequentially arranged from an object side to an image side; external light is transmitted to the signal sensing assembly through the optical acquisition assembly; the corneal lens group has negative focal power; the conventional lens group comprises a first lens group, a second lens group, a third lens group, a focusing lens group and a spectroscope group; the first lens group, the second lens group and the third lens group all have positive focal power; the focusing lens group comprises a liquid lens and is used for adjusting focal power; the spectroscope group comprises a beam splitter prism and is used for carrying out beam splitting treatment on incident light; the signal sensing assembly is arranged on a light path formed by the optical acquisition assembly and is used for receiving light transmitted by the optical acquisition assembly; on the basis, not only can the physiological structure of human eyes be simulated, but also the human eyes can be simulated to comprehensively perceive various information in a visual field range, and comprehensive measurement of the display quality of the XR equipment is realized.

The utility model relates to medical instrument technical field especially, more particularly to a kind of camera and endoscope system with liquid lens, the camera includes: in incident optical axis direction, first optical lens group, liquid lens, second optical lens group and image sensor are sequentially and interval arranged;Drive circuit, drive circuit is connected in liquid lens, drive circuit is used to output zoom signal to liquid lens;Liquid lens is used to carry out curvature adjustment when receiving zoom signal.Compared with the zoom of the prior art using mechanical mechanism, the utility model can not need to set mechanical mechanism, and then simplify structure, so that user is more portable when holding, improves user experience.

The application relates to the technical field of adaptive optics and intelligent material application, and discloses a liquid lens continuous zooming method and system based on programmable control, which comprises the following steps: temperature adjustment is performed on a phase change container to switch the phase change container from a glass state to a high-elasticity state; the volume of an optical medium is adjusted to drive the phase change container in the high-elasticity state to deform until the phase change container reaches a target optical appearance; temperature adjustment is performed on the phase change container to switch the phase change container from the high-elasticity state back to the glass state to lock the target optical appearance, and passive self-locking of the focal length is realized. Through the combination of the glass transition characteristics of the shape memory polymer and the precise regulation and control of the volume of the optical medium, the continuous zooming and passive self-locking of the liquid lens are realized, the problem that the traditional liquid lens needs to continuously consume electric energy to maintain the focal length is effectively solved, and the optical appearance precision and long-term stability of the lens in a complex environment are ensured.

The embodiment of the invention discloses a liquid lens, a lens system and a display device. In the liquid lens, a second substrate is provided with an opening; the elastic film covers the opening and is connected to the second substrate. The first substrate, the side wall, the second substrate and the elastic film define a containing cavity. The light-transmitting liquid is arranged in the accommodating cavity; the extrusion piece is located on the peripheral side of the open hole. The liquid lens has a plane lens state and a convex lens state, and when the liquid lens is in the plane lens state, the elastic film is in a plane shape; when the liquid lens is in a convex lens state, the extruding piece extrudes the light-transmitting liquid, the light-transmitting liquid extrudes the elastic film, and the elastic film protrudes out of the second substrate and is in a convex curved surface shape. According to the liquid lens, the extruding part is adopted to extrude the light-transmitting liquid, so that the light-transmitting liquid extrudes the elastic film to protrude, and at the moment, the light-transmitting liquid is in a convex lens shape. The protruding amount of the elastic film can be adjusted according to the extrusion degree of the extrusion piece on the light-transmitting liquid, and therefore zooming of the lens is achieved.

The invention relates to the technical field of biomedical engineering and medical equipment, in particular to a liquid lens and an optical module comprising the same. An elastic polymer film is arranged in the liquid lens main body; the deformation of the elastic polymer film is controlled through voltage or pressure, so that the curvature radius of a liquid interface is changed, and the focal length is adjusted; the optical module comprises a microscope; a liquid lens main body is mounted in an objective lens mounting area on the microscope; the contact assembly is arranged on the side wall of the microscope; and the contact assembly is used for driving the stress assembly to move. The jaw of a doctor makes contact with the contact plate to generate pressure, the pressure sensor monitors a numerical value, the voltage of the liquid lens is controlled through the relay, non-manual and non-voice visual zooming operation is achieved, interference of hand operation in an operation is reduced, and meanwhile the pollution risk caused by direct contact with equipment is avoided; the rapid change of the operation environment is adapted; and the manual adjustment burden of a doctor is relieved.

The invention provides a beam expanding lens and method for adjusting a laser divergence angle and a laser range finder, and relates to the technical field of optics. The beam expanding lens comprises a pre-beam expanding unit, a liquid lens unit and a main beam expanding unit which are arranged along a laser light path in the beam expanding lens; the pre-beam-expanding unit is used for expanding the original laser beam to a spot diameter matched with that of the liquid lens unit to obtain a first laser beam; the liquid lens unit is used for responding to the electric control signal and adjusting the curvature of the wavefront of the first laser beam to obtain a second laser beam with a variable divergence angle; the main beam expanding unit is used for receiving the second laser beam and adjusting the spot diameter of the second laser beam to obtain a third laser beam. The problems that in the prior art, a fixed-magnification beam expanding lens cannot achieve dynamic adjustment of the laser divergence angle, and a variable-magnification beam expanding lens based on mechanical zooming is low in response speed, poor in mechanical abrasion, limited in service life, complex in structure, large in size and the like can be solved.

This invention proposes a zoom microprojector based on metasurface holography, comprising a laser, a transmissive metasurface, and an electrowetting liquid lens. To achieve system miniaturization, the transmissive metasurface and the electrowetting liquid lens are integrated into a single cavity, with the electrowetting liquid lens located behind the transmissive metasurface. During the metasurface fabrication process, a 3D Fourier transform algorithm is proposed to generate a 3D metasurface hologram, thereby fabricating the transmissive metasurface. The liquid lens is a small-aperture liquid lens designed based on the electrowetting principle to cooperate with the transmissive metasurface to achieve zoom microprojection. When the laser emitted from the laser illuminates the transmissive metasurface, the 3D image diffracted by the metasurface passes through the electrowetting liquid lens. The position and size of the 3D image can be adjusted according to the voltage of the liquid lens, thus achieving a 3D zoom projection effect.

The utility model belongs to the technical field of optical imaging equipment, and discloses a quick-plug module and a lens, the quick-plug module comprises a quick-plug shell, a liquid lens, a circuit board and a plug, the quick-plug shell comprises an insertion part and a handheld part, the insertion part can be inserted into the lens along the radial direction of the lens, and the insertion part is provided with a lens hole; the liquid lens is fixedly installed in the quick-plug shell, and the axis of the liquid lens coincides with the axis of the lens hole. The circuit board comprises a PCB and an FPC, the circuit board is fixedly installed in the fast plug shell, one end of the circuit board is connected with the liquid lens, the other end of the circuit board is connected with the plug, fast assembly and replacement of the liquid lens are achieved, production, maintenance and use cost is reduced, product reliability is improved, modular assembly of the lens is achieved, and production efficiency is improved.

The present invention provides a camera module includes a lens assembly including a liquid lens and at least one solid lens disposed above or below the liquid lens, the liquid lens including a plurality of individual electrodes and a common electrode, a driving driver supplying a voltage through the common electrode and at least one of the plurality of individual electrodes in the liquid lens, a thermistor pattern configured to measure a temperature in the liquid lens, and a control unit determining a temperature in the liquid lens using the thermistor pattern and to control the driving driver, wherein the liquid lens further includes a first plate, a second plate disposed on the first plate, and a third plate disposed under the first plate, wherein the common electrode is disposed on the first plate, and wherein the plurality of individual electrodes is disposed under the first plate.

This invention belongs to the field of optical technology. It provides a liquid lens and an optical module containing the same. The liquid lens includes a fixed ring with a first ring body. The first ring body has a receiving area, which is sealed by an elastic membrane and filled with an optical liquid. Along the direction from the bottom interface to the top interface of the receiving area, the radial distance between the inner wall surface of the first ring body and the central axis of the first ring body gradually decreases, and a hydrophobic layer is provided on the inner wall surface. An actuating ring is disposed on one side of the bottom interface. In other words, by configuring the inner wall of the receiving area of ​​the first ring body in a specific inclined state and cooperating with the hydrophobic layer, this invention effectively prevents liquid leakage during injection and encapsulation from the top interface side, reduces the difficulty of the encapsulation process, increases the manufacturability of the liquid lens, and ensures the encapsulation quality and optical performance of the liquid lens.

The utility model relates to a machine vision and industrial detection technology, in particular to a rapid focusing industrial lens structure, an industrial lens, a control system and an industrial vision detection device, wherein the rapid focusing industrial lens structure adopts an electrowetting liquid lens to realize millisecond-level automatic focusing. A fast focusing industrial lens structure is composed of eight glass lenses and an electric control liquid lens, and the nominal value of the optical focal length is 35 mm. Within the object distance range of 225-600mm, the liquid lens realizes millisecond-level automatic focusing by adjusting the curvature of a liquid interface, and the optical back focal length and the mechanical back focal length are kept unchanged. Through actual measurement, the absolute value of lens distortion is less than or equal to 2%, the curvature of field is less than or equal to + / -0.2 mm, the full-field relative illumination is greater than or equal to 95%, and the high-resolution imaging requirements of industrial vision, automatic detection and robot precise positioning scenes can be met.

The invention discloses a vehicle-mounted all-around camera control system and method, which is applied to a vehicle-mounted all-around camera, is mounted on two sides of a vehicle, and comprises a liquid lens module, a partition image sensor, an environment sensing module and a control processor. The liquid lens module controls the curvature radius of the liquid lens through the voltage driving circuit so as to adjust the focal length and support switching between a long-focus mode and a short-focus mode. A light-sensitive surface of the partition image sensor is divided into a central light-sensitive area and an edge light-sensitive area which respectively correspond to a long-focus mode and a short-focus mode and support independent configuration of exposure parameters, frame rates and HDR synthesis frame numbers. The environment sensing module obtains data such as vehicle speed, illumination intensity and minimum obstacle distance, and provides real-time environment information for image processing. The control processor generates a voltage control signal according to the environmental data, adjusts the focal length of the liquid lens module, and carries out parameter configuration on the image sensor. According to the invention, hardware redundancy is reduced, cost is reduced, and image quality and dynamic response speed are improved.

This utility model relates to the field of liquid lens technology, specifically an adjustable focusing lens based on a liquid lens, including a lens mount and a liquid lens module. One end of the lens mount has a docking groove, and the liquid lens module rests against the docking groove. One end of the lens mount has a positioning groove, and the liquid lens module has a positioning box that rests against the positioning groove. The positioning box has an electrode connector, and the positioning groove has an interface. An annular inclined groove is formed on the outer ring of the liquid lens module. The lens mount has a fastening box, and a threaded hole is formed between the top of the fastening box and the docking groove. A fastening groove is formed between the inside of the fastening box and the threaded hole. The threaded post and conical head allow the operator to complete the stable installation or quick disassembly of the liquid lens module simply by rotating the threaded post, without the need for additional tools, greatly improving maintenance convenience.

The application relates to an image acquisition method and device, computer equipment and a storage medium, and belongs to the technical field of artificial intelligence. The method comprises the following steps: acquiring a first image corresponding to a target object, the first image being an image acquired by an image acquisition device when a liquid lens is in a first lens state, the image acquisition device being connected with a microscope system, and the liquid lens being located between the image acquisition device and the microscope system, wherein the focal length of the liquid lens is different under different lens states; performing defocus amount prediction based on the first image to obtain a first defocus amount corresponding to the first image, the first defocus amount being used for indicating the distance between the target object and the focal point of the objective lens; correcting the first defocus amount based on the first lens state to obtain a second defocus amount corresponding to the first image; adjusting the focal length of the liquid lens based on the second defocus amount, and acquiring a second image corresponding to the target object through the image acquisition device. The acquisition efficiency of a clear focused image can be improved.

The application discloses a liquid zoom lens and a robot, and relates to the field of lenses. The liquid zoom lens comprises a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a liquid lens, a fifth lens, a sixth lens and a seventh lens arranged in sequence along an optical axis from an object side to an image side. The optical power of the first lens to the seventh lens is negative, negative, positive, positive, negative, positive and positive in sequence, and the optical power of the liquid lens is positive or negative. The technical scheme has the advantages that the lens can be focused at different distances, the focusing distance is shortened, the near distance focusing requirement is met, the lens can be applied to more application scenarios, the number of lenses is small, the lens cost and weight are reduced, the number of plastic aspheric lenses is reduced, the system reliability is improved, and the performance degradation under harsh working conditions is reduced.

The application provides a liquid double-telecentric lens with adjustable focus and intelligent production equipment, and relates to the technical field of optical lenses. The liquid double-telecentric lens with adjustable focus comprises a first lens, a second lens, a third lens, a liquid lens, a fourth lens, a fifth lens and a sixth lens arranged in sequence along an optical axis from an object side to an image side. The first lens is a biconvex lens with positive focal power, the second lens is a biconvex lens with positive focal power, the third lens is a biconcave lens with negative focal power, the fourth lens is a biconcave lens with negative focal power, the fifth lens is a biconvex lens with positive focal power, and the sixth lens is a biconvex lens with positive focal power. The focus position of the liquid double-telecentric lens with adjustable focus is changed by adjusting the driving voltage or driving current of the liquid lens, so that fast focusing under different working distances is completed. The embodiment of the application realizes small volume and excellent imaging quality in a large depth of field.