69results about How to "Large zoom range" patented technology

A method of producing a digital image with improved resolution during digital zooming, including simultaneously capturing a first low resolution digital image of a scene and a second higher resolution digital image of a portion of substantially the same scene. A composite image is then formed by combining the first low-resolution digital image and a corresponding portion of the high resolution digital image. Digital zooming of the composite image produces a zoomed image with high resolution throughout the zoom range and improved image quality.

The invention relates to a liquid lens array capable of discretely zooming and a method for manufacturing the same. The method comprises the following steps: coating a layer of transparent conducting film serving as a first electrode on a glass substrate of the lens array and discretely distributing the transparent conducting film in a form of mesh openings with pins through photo-etching; coating a layer of hydrophobic insulating medium on the glass substrate and forming mesh opening distribution corresponding to the shape of the first electrode so as to expose the first electrode below the insulating medium; injecting nonvolatile insulating liquid into the openings, depositing a layer of transparent Parylene elastic membrane on the liquid and encapsulating the liquid in an enclosed space; and coating a layer of transparent conducting membrane serving as a second electrode on the Parylene membrane. The liquid lens array has the characteristics of compact structure, wide zooming range, high efficiency, wide selection range of filled liquid, electric control, easy array manufacturing, capability of making each lens unit in the array discretely zoom, simple manufacturing method and high efficiency. The device is widely used in the aspects of high-resolution, large visual field, high field depth, three-dimensional imaging and the like.

The invention provides a small size uncooled dual-field-of-view infrared optical system which comprises a first positive meniscus lens and a detector. A biconcave lens, a second positive meniscus lens, a negative meniscus lens and a third positive meniscus lens are sequentially arranged from the first positive meniscus lens to the detector along the optical axis; the first positive meniscus lens, the second positive meniscus lens and the third positive meniscus lens each have positive diopter, and the biconcave lens and the negative meniscus lens each have negative diopter. Both the curved surface S3 of the biconcave lens and the curved surface S7 of the negative meniscus lens are aspheric surfaces, and the aspheric surface S7 is further provided with a binary diffraction surface. The lenses of different types are reasonably arranged and the positive diopter and the negative diopter of the lenses are selected, so that the whole dual-field-of-view infrared optical system has a smaller size and a larger zooming ratio, has a larger zooming range under the switching conditions of a narrow field of view and a wide field of view, and is suitable for occasions with small size requirements for infrared optical systems.

The invention discloses a visual function optimization training control system and a control method thereof. The system comprises a training device, a microcomputer, a range finding device which tests user vision distances, and an image pickup device which acquires ocular surface or iris sizes and patterns of users. The microcomputer is connected with the training device in a both-way communication manner. The output ends of the training device are connected with the input end of the range finding device and the input end of the image pickup device. The output end of the range finding device and the output end of the image pickup device are connected with the input end of the microcomputer. The microcomputer stores data transmitted by the training device, the range finding device, and the image pickup device. The visual function optimization training control system preferably solves defects in the prior art that operationality is not good, and professional guidance is needed. The system can record training data by the microcomputer in real time, so that even though a user uses fragmented time to train, the system can record all the process, and through analysis, gives an adjustment scheme, thereby greatly improving practicality and effectiveness of vision optimization training.

The invention relates to a camera module and electronic equipment. The camera module comprises a lens seat; a liquid lens which is connected with the lens base and comprises a closed bag body and liquid arranged in the closed bag body; a first pressing element which comprises a first driving piece and a first lens group, a second pressing element which is connected to the lens seat, and an image sensor which is arranged on one side, far away from the liquid lens, of the first pressing element and is connected with the lens seat, wherein the first driving piece is connected with the lens seat and the first lens group; the first lens group comprises a first pressing part and at least one lens arranged on the first pressing part, the optical axis of the first lens group is a first optical axis, the liquid lens is arranged on an object side of the first lens group along the direction of the first optical axis, the first driving piece can drive the first lens group to move along the direction of the first optical axis so as to enable the first pressing element to press the liquid lens, the second pressing element and the first pressing element are arranged at intervals, and the second pressing element can press the liquid lens in the direction of the first optical axis. The camera module has a large zoom range and can realize miniaturized design.

A liquid crystal lens system is prepared as arranging multiple pixel point on liquid crystal panel to form diffraction lens fringe pattern on said liquid crystal panel, carrying out control and regulation on pattern formed at said liquid crystal panel by control circuit through a processor for making said pattern be a variable diffraction lens fringe pattern and for making liquid crystal lens be a diffraction lens of focal distance adjustable type.

The invention discloses electronic equipment. The electronic equipment comprises a first folding part, a second folding part, a first lens, a second lens and a photosensitive chip, wherein the first folding part is provided with a through hole, the second lens is arranged in the through hole, the second folding part is provided with a mounting hole, and the first lens and the photosensitive chip are both arranged in the mounting hole; and under the condition that the electronic equipment is in a folded state, the first lens is opposite to the second lens, and the first lens is located betweenthe second lens and the photosensitive chip. According to the scheme, the long focus and the short focus of the folding electronic equipment can be flexibly switched under the condition that the thickness is not increased.

The invention discloses a 3D (three-dimensional) camera-recording and displaying integral machine with zooming by multiple-lens switching. The integral machine is characterized by comprising a lens group, wherein the lens group is transversely arranged, the inside of the lens group is provided with a plurality of lenses, all lenses in the lens group are electrically connected with a control device, and the control device comprises a double-lens 3D image synthesizing module, a control chip module, a storage device, a power source device and a communication interface module. As an improvement, the lenses in the lens group are high-definition camera lenses, the high-definition camera lenses are different in focuses, and all the high-definition camera lenses are symmetrically and transversely arranged at the back side of a display. The integral machine has the advantages that the zooming range is wider and more accurate, the shooting and zooming of 3D videos can be carried out by non-professional persons, meanwhile, the price is lower, and the popularization and the large-scale production are favorably realized.

The invention discloses a lens system with a variable focus, and belongs to the technical field of optics. The lens system with the variable focus comprises a semi-reflective lens, a first holophote, a convex lens and an open container used for containing transparent liquid, wherein the open container can rotate by using the longitudinal central axis of the open container as a rotation axis, the rotating speed of the open container is adjustable, a second holophote is arranged at the bottom of the open container, and can reflect back incident light after the incident light penetrates through the transparent liquid, the incident light is firstly reflected to the surface of the transparent liquid in the open container by the semi-reflective lens, is refracted by the transparent liquid, and then is reflected by the second holophote, the reflected light is transmitted to the first holophote through the semi-reflective lens, and the first holophote reflects the light to the convex lens. The invention further discloses a zooming method of the lens system with the variable focus. The lens system with the variable focus and the zooming method of the lens system with the variable focus have the advantages of being low in implementation cost, flexible in operation, large in zooming range, capable of achieving continuous zooming and the like.

The invention relates to the technical field of optics and the field of MEMS, in particular to an all-solid-state variable-focus electrostatic drive type micro lens based on a PDMS film, which is structurally characterized in that a flexible polymer is placed between two glass layers with different thicknesses. Two annular electrode actuators are respectively connected to the lower bottom surfaceof the glass film connected with the polymer and the upper bottom surface of the glass is supported. When voltage is applied to electrodes, a coulomb force generated between the electrodes forces theglass film to bend, so that a lens structure is integrally formed, the glass film has different bending curvatures due to different voltages, and the focal length of the micro lens is changed. The micro lens is a typical micron-sized MEMS integrated product, and has the advantages of small size, low power consumption, no magnetic interference, wide zoom range, quick response and the like.

The invention relates to a dielectric elastomer liquid lens based on transparent conductive liquid, and belongs to the field of optical imaging. According to the liquid lens, conductive liquid is adopted as a flexible electrode, a dielectric elastomer bearing the conductive liquid is adopted as a driver, and voltage is applied to the upper surface and the lower surface of the dielectric elastomer, so that the shape of the liquid is regulated and controlled, the zooming function of the liquid lens is achieved, and miniaturization of the dielectric elastomer liquid lens is achieved. According to the invention, the miniaturization of the dielectric elastomer liquid lens can be realized without additionally coating a flexible electrode in a large area. The liquid lens has the advantages of simple driving structure, large zoom range, high response speed, low cost and the like.

The invention provides an image-scaling method which comprises the steps of: acquiring edge information of a pixel point of target image corresponding to a pixel point of source image; and according to the edge information, calculating the pixel value of the pixel point of the target image. The invention also discloses an image-scaling device which comprises an edge information acquisition unit used for acquiring the edge information of the pixel point of the target image corresponding to the pixel point of the source image, and a pixel value calculating unit used for calculating the pixel value of the pixel point of the target image according to the edge information. The invention can lead the position corresponding to image edge with high strength to be maintained to be clear and stable after the image is scaled, and ensures the position corresponding to image edge with low strength to be maintained to be soft after the image is scaled, thus avoiding the problem of image flicker.

The invention relates to the technical field of optics and the field of MEMS, in particular to an all-solid-state variable-focus piezoelectric driving type micro lens based on an SEBS film, which is structurally characterized in that the SEBS film is placed between two glass layers with different thicknesses; and the two annular piezoelectric actuators are respectively bonded on the upper bottom surface and the lower bottom surface of the glass film. When a voltage is applied to the piezoelectric actuator, the piezoelectric actuator forces the glass film to bend, so that a lens structure is integrally formed, and the glass film has different bending curvatures due to different voltages, so that the focal length of the micro lens is changed. The piezoelectric drive type micro lens is a typical micron-sized MEMS integrated product, and has the advantages of small size, low power consumption, no magnetic interference, wide zoom range, quick response and the like.

The invention relates to a mobile terminal, an image acquisition module thereof and a liquid lens. The liquid lens comprises a closed cavity, and a first conductive liquid, an insulating liquid and asecond conductive liquid which are filled in the closed cavity, a first optical interface is formed at the boundary of the first conductive liquid and the insulating liquid; a second optical interfaceis formed at the boundary of the second conductive liquid and the insulating liquid; a first electrode and a second electrode are arranged on the outer wall of the closed cavity, the first electrodeis electrically connected with the first conductive liquid and used for adjusting the curvature of the first optical interface when powered on, and the second electrode is electrically connected withthe second conductive liquid and used for adjusting the curvature of the second optical interface when powered on. According to the mobile terminal, the image acquisition module thereof, and the liquid lens, when the voltage of the first electrode and the voltage of the second electrode are changed, the curvature of the first optical interface and the curvature of the second optical interface canbe adjusted respectively without affecting each other, the zoom range is enlarged, and the focusing performance is improved.

The invention relates to the field of imaging and optical information processing, and discloses a design scheme of a lens capable of continuously zooming from a visible light band to an infrared band.The design scheme comprises the steps of designing a superlens with a fixed focal length by utilizing excellent phase modulation capability of a metasurface; additionally arranging a layer of liquidcrystal and a composite layer below the super lens in a clinging manner; providing paraboloid-type voltage for the liquid crystal layer through the composite layer so as to generate paraboloid-type phase modulation in the liquid crystal layer, superposing the phase to the phase of the super lens to jointly determine the focal length of the lens, and changing paraboloid-type phase distribution in the liquid crystal layer by changing the voltage so as to achieve the zooming effect. The invention provides a method for continuously zooming a super lens by adopting a method of combining the super lens and liquid crystal. According to the method, only a single electrode is used on the premise of realizing continuous zooming, the processing complexity is reduced, the advantage of ultra-micro andultra-thin metasurface is maintained structurally, and the super lens is particularly suitable for a mobile phone lens.

The invention relates to the field of optics and the field of MEMS, and concretely relates to a focus-adjustable micro lens. The micro lens is structurally characterized in that a flexible polymer isplaced between a glass film and supporting glass, the glass film is small in hardness and prone to deformation, and the supporting glass is large in hardness and not prone to deformation. An intelligent material IPMC annular driver is placed on the topmost layer. A metal shell is arranged on the outermost side of the whole structure and plays a role in supporting and protecting. When voltage is applied to the annular IPMC, the outer side of the IPMC is fixed, downward displacement is generated on the inner side of the IPMC, the glass film and a flexible polymer deform, and a plano-convex lensstructure is formed. Through different applied voltages, driving forces generated by the IPMC are different, convex curvatures of the plano-convex lenses are different, and focal lengths are different. The micro lens is a typical MEMS integrated product and has the advantages of being small in size, low in power consumption, simple in structure, free of magnetic interference and the like.

The invention discloses a zooming imaging lens, an imaging module and an iris recognition device. The zooming imaging lens, the imaging module and the iris recognition device belong to the field of biological recognition. The zooming imaging lens comprises a first lens set with a negative focal power and a second lens set with a positive focal power from front to back. The first lens set comprises a first lens with a negative focal power and a second lens with a positive focal power. The second lens comprises a third lens with a positive focal power, a fourth lens with a negative focal power, and a fifth lens with a positive focal power. The first lens, the second lens, the third lens, the fourth lens and the fifth lens are respectively a biconcave lens, a convexoconcave lens, a biconcave lens, a biconcave lens and a convexoconcave lens. The first lens, the second lens and the fifth lens are aspheric lenses. The third lens and the fourth lens are spherical lenses and are adhered together. The distance between the first lens set and the second lens set can be adjusted. The zooming imaging lens has advantages of simple structure, small size, wide zooming range and wide acquisition range. The zooming imaging lens can acquire a high-quality iris image.

A variable-focus micro lens array structure based on electric actuation and a preparation process thereof are provided. The structure is a 'sandwich' structure, wherein the bottom layer is a transparent conductive electrode, the middle layer is an elastic organic transparent polymer layer, and the top layer is a flexible conductive layer. The preparation process comprises the following steps: preparing a graphical dielectric polymer film layer on the surface of a conductive electrode to form an induced template; then, preparing an elastic organic transparent polymer layer on the surface of the transparent conductive electrode, putting the induced template on the upper part of the elastic organic transparent polymer layer, and applying a voltage to make the Maxwell stress on the elastic organic transparent polymer layer overcome the flowing deformation of surface tension and viscous resistance until the replication process ends; and finally, preparing a layer of conductive polymer aqueous solution on the surface of the shaped elastic organic transparent polymer layer, carrying out heating to evaporate solvent, and forming a flexible conductive layer in the depressed part of the elastic polymer film layer. Organic unity of flexible structure, superior performance and simple process of a variable-focus micro lens array is realized.

The embodiment of the invention provides an image acquisition method and image acquisition equipment. The image acquisition method is applied to variable-focus image acquisition equipment comprising aplurality of variable-focus lenses, wherein each lens has different zoom ranges, and an overlapped focal length interval exists between two adjacent zoom ranges; the overlapped focal length intervalto which the current focal length belongs is determined by acquiring the current focal length of the image acquisition equipment; by judging whether the current focal length is smaller than a preset switching focal length in the overlapped focal length interval or not, if the overlapping focal length interval is smaller than the preset overlapping focal length interval, it is determined that the short-focus zoom lens is a main lens for zooming according to zoom parameters received by the image acquisition equipment and acquiring images from two lenses corresponding to two zoom ranges with theoverlapping focal length interval, and the long-focus zoom lens is a slave lens for zooming along with the main lens; and an image acquired by the main lens is acquired. By superposing the zoom rangesof the plurality of zoom lenses, the focal length range of the zoom image acquisition equipment is expanded on the premise of not increasing the volume of a single lens.

The invention provides a super-large-zoom-range imaging system based on liquid lenses. The imaging system comprises an auxiliary lens set, the liquid lens I, the liquid lens II, the liquid lens III, a front end semi-transparent semi-reflective mirror, a rear end semi-transparent semi-reflective mirror, a front end mirror, a rear end mirror, a photographing channel liquid diaphragm, a telescopic channel liquid diaphragm and an optical imaging device. The system comprises two optical paths, can be switched to be a large-view-field photographing mode and a small-view-field telescopic mode, and accordingly achieves a super-large zoom range.

The invention discloses intelligent glasses, and belongs to the technical field of intelligent equipment. The intelligent glasses comprise an intelligent glasses body and a camera assembly detachably connected with the intelligent glasses body; the camera assembly comprises a camera carrier, a liquid lens and a zoom adjusting mechanism; the camera carrier is provided with a through channel in the light path direction; the liquid lens is arranged in the through channel; and the zoom adjusting mechanism comprises an extrusion mechanism and a driving mechanism, the extrusion mechanism is arranged on the camera carrier and sleeves a convex surface structure, the driving mechanism is in transmission connection with the extrusion mechanism, and the driving mechanism can drive the extrusion mechanism to extrude the convex surface structure of the liquid lens. In the embodiment of the invention, the liquid lens is adopted, and the zoom adjusting mechanism is adopted to extrude the liquid lens so as to quickly adjust the diameter of the through hole of the aperture to realize quick focusing, so that the intelligent glasses have the advantages of small size, wide zoom range and more sensitive adjustment.

The invention discloses an L-shaped zooming reflector lamp comprising a lamp support; the top portion of the lamp support is fixedly connected with a drive box; the top portion of the inner wall of the drive box is fixedly connected with a first base; the fist base is connected with a zooming support through a first sliding groove in a sliding mode; the left side of the inner wall of the drive boxis fixedly connected with an actuating device; one end of an output shaft of the actuating device is fixedly connected with a screw; the surface of the screw and the zooming support is connected in athreaded mode; the right end of the screw is rotatably connected with the inner wall of the drive box; the top portion of the inner wall of a lamp shell is fixedly connected with a fixed plate; and one end of the zooming support sequentially penetrates through the drive box, the lamp shell and the fixed plate and extends to the interior of the lamp shell. The invention relates to the technical field of lighting appliance. According to the L-shaped zooming reflector lamp, by comparing an L-shaped zooming structure in the lamp shell with a normal vertical zooming structure, focus range of the reflector lamp is larger, zooming range which can be adjusted is wider, the zooming capability of the reflector lamp is higher, and occupied space is smaller.

The invention discloses a liquid lens and electronic equipment, and belongs to the field of camera shooting. The liquid lens comprises a lens cone, a flexible film and a pressure intensity adjusting assembly. The lens cone is provided with an inner cavity, the flexible film divides the inner cavity into a first accommodating cavity and a second accommodating cavity, the first accommodating cavity is filled with a first medium, the second accommodating cavity is filled with a second medium, and the refractive indexes of the first medium and the second medium are different; and the pressure intensity adjusting assembly is connected with the lens barrel, and the pressure intensity adjusting assembly is used for adjusting the pressure intensity in the first accommodating cavity and/or the pressure intensity in the second accommodating cavity, so that the flexible film deforms towards the first accommodating cavity or the second accommodating cavity.

The invention discloses a camera module and electronic equipment. The camera module comprises a light inlet unit, a zooming unit and a focusing unit which are sequentially connected along a first direction. The zoom unit comprises a lens base and at least two lenses, the at least two lenses are fixed in the lens base and distributed at intervals in the second direction, and an included angle is formed between the second direction and the first direction; and the lens base and the at least two lenses move in the second direction, so that one lens corresponds to the light inlet unit and the zooming unit. According to the camera module, the at least two lenses of the zoom unit are fixed in the lens base to form the integrated structure, the structure is simple, the number of matched elements is small, the cost is low, the at least two integrated lenses are small in size, and miniaturization of the zoom unit and the camera module is facilitated.