42results about How to "Achieve zoom" patented technology

The invention provides a dual zooming lens based on polarization state control. A polarizer, a quarter-wave plate, a first lens and a second lens are successively arranged in the forward direction of light, the first lens and the second lens employ planar nanometer brick lenses composed of nanometer brick arrays, the dimension of each nanometer brick in the nanometer brick arrays is the same, the center interval between adjacent nanometer bricks is the same, the corners of the nanometer bricks are determined according to the distance from the center of the lens. The dual zooming lens is characterized in that focal length values of two nanometer brick meta-material structured lenses can be changed to opposite numbers of original focal length values simply by changing the rotation direction of rotatory polarization of the nanometer brick meta-material structured lenses (i.e., rotating the quarter-wave plate by 90 degrees), and thus a zooming function of a combined lens is realized. The dual zooming lens with polarization control has the advantages of simple zooming, small volume, light weight, high integration, batch copy and the like, thereby can be widely applied to such fields as photon integration, laser processing and the like.

The invention discloses a refrigeration type common-caliber m medium / long-wave infrared double-waveband double-view-field dual-shift zoom optical system. The system comprises a first double-crescent positive lens, a second double-crescent positive lens, a first double-crescent negative lens, a third double-crescent positive lens, a second double-crescent negative lens, and a first light splitting prism for reflecting medium-wave infrared light and transmitting long-wave infrared light which are successively arranged along an optical axis. A reflection optical path of the medium-wave infrared light passing through the first light splitting prism is successively provided with a fourth double-crescent positive lens, a dual separate lens group, a first dual convex lens, a second dual concave lens, a sixth double-crescent positive lens and a seventh double-crescent positive lens, and a transmission optical path of the long-wave infrared light passing through the first light splitting prism is successively provided with an eighth double-crescent positive lens, a second dual convex lens, a third dual concave lens, a third double-crescent negative lens and a ninth double-crescent positive lens. The dual separate lens group is composed of a first dual convex lens and a fifth double-crescent positive lens. According to the system provided by the invention, a target image can be tracked, detected and captured in a high-accuracy manner.

The invention relates to a method for realizing zoom optical system without moving a lens group and the optical system. The method comprises the following steps: firstly determining an object distanceA, a lens spacing B, a rear cut-off distance C and a group system focal distance f'; taking liquid varifocus lenses as a core element and carrying out model selection of the optical system; calculating and selecting applicable magnification Beta and determining the surface curvature radius of the two liquid lenses to finish the original structural design; carrying out aberration optimization anddetermining controlled variable of air pressure or hydraulic pressure to realize system zoom. The system comprises a system object plane and a system image plane, wherein at least two liquid varifocuslenses are arranged on the system object plane and the system image plane. The invention has the advantages of small volume, simple structure and high imaging quality, thereby particularly being suitable for occasions with severe requirement on structure and imaging quality.

The invention relates to a three-dimensional image capture device which comprises two image capture units and a processing unit. Each image capture unit comprises a lens module and a sensor, the lens module comprises a liquid crystal lens and a driving unit, the liquid crystal lens comprises a first light transmitting base board, a second light transmitting base board, a first electrode layer, a second electrode layer and a liquid crystal layer, the first electrode layer and the second electrode layer are respectively arranged on the first light transmitting base board and the second light transmitting base board, the first electrode layer comprises a plurality of annular electrodes, the liquid crystal layer comprises a plurality of annular areas which are respectively located between the plurality of annular electrodes and the second electrode layer, the driving unit applies voltage to the annular electrodes and the second electrode layer to change refractive indexes along an axial direction of the liquid crystal lens, images are formed by sensors, the processing unit receives two images formed by the two sensors to synthesize the three-dimensional image and control the driving unit to apply the voltage.

The invention discloses an adjustable light source support, which comprises a lower fixing ring. The lower fixing ring is connected with an upper fixing ring through telescopic rods I; the upper fixing ring is connected with an adjusting ring through telescopic rods II; a fixing tile is fixedly arranged in the adjusting ring; the lower end of the fixing tile is connected with the upper end of a reflecting cover; the lower end of the reflecting cover is connected with the lower fixing ring; the adjusting ring is connected with a fixing table through support pillars; the lower surface of the fixing table is connected with a lamp installation seat through a telescopic rod III; a lens is arranged at the bottom part of the reflecting cover; the lens and the lower fixing ring are fixedly arranged; input ends of the telescopic rods I, the telescopic rods II and the telescopic rod III are electrically connected with an output end of a PLC (Programmable Logic Controller); and an input end of the PLC is electrically connected with an output end of an external power supply. The adjustable light source support is simple in structure, stable in performance, and convenient to maintain.

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 provides projection equipment. The projection equipment comprises a lens assembly, a lens base, a heat transfer assembly and a cooling assembly, wherein the lens assembly comprises a lens cylinder, the cooling assembly sleeves an outer side of the lens cylinder and is connected with the lens base, the heat transfer assembly is arranged on an outer wall of the lens cylinder and is elastically connected with the cooling assembly, and heat of the lens assembly is conducted to the cooling assembly. By the projection equipment, effective cooling during working can be achieved.

The embodiment of the invention relates to intelligent glasses for myopia. The intelligent glasses for myopia comprises a glasses frame, a ranging device which is arranged on the glasses frame, a leftvariable focal lens and a right variable focal lens, wherein each variable focal lens comprises a base sheet, a secondary sheet, transparent liquid, a pressure regulator and a chip; the chips are used for receiving current range data; when the current range data is less than a preset watching range threshold value, the current range data holding time is monitored; if the holding time is greater than the time threshold value, the chips are capable of generating a focal length adjusting instruction and sending to the pressure regulators; then pressure regulators are used for receiving the focallength adjusting instruction and changing the volume of the transparent liquid in an empty cavity based on the focal length adjusting instruction in order to adjust the pressure of the transparent liquid on the base sheets and the secondary sheets, so that the whole variable focal lens can be subjected to focal length change while the secondary sheets are deformed under the change of the pressurefrom the transparent liquid, and as a result, the focus variation is realized; after focus variation, eyes adjust to adapt to the varied focus, so that the focal length of the eyes are varied, and the tense eye adjusting muscle can be properly released, and the asthenopia is relieved.

The embodiment of the invention provides a camera module, a terminal and a zooming method. The camera module comprises a PCB (Printed Circuit Board), wherein an imaging sensor is attached to the PCB; a lens carrier is arranged above the imaging sensor; a lens is arranged on the lens carrier; a plurality of adjustable lens T lens modules are arranged above the lens; the plurality of adjustable lens T lens modules are distributed axially; and the plurality of adjustable lens T lens modules are used for adjusting a focal length according to a control voltage. Through the embodiment of the invention, zooming can be realized.

The invention discloses a total-space focus-adjustable super-structure lens and a design method thereof, the total-space focus-adjustable super-structure lens comprises a first super-structure surface, a second super-structure surface and a third super-structure surface, and emergent wave phases corresponding to nano antennas of the first super-structure surface meet a formula: P1 =-a ((x1 + d) 2 + y12), the emergent wave phase corresponding to each nano antenna on the second metasurface meets the formula: P2 = a ((x2 + d) 2 + y22) (a (x22 + y22)) phi 1, the emergent wave phase corresponding to each nano antenna on the third metasurface meets the formula: P3 =-(a (x32 + y32)) phi 2, a and d are constants, x1 and y1 are first plane coordinates corresponding to each nano antenna on the first metasurface, x2 and y 2 are second plane coordinates corresponding to the nano antennas on the second metasurface, x3 and y3 are third plane coordinates corresponding to the nano antennas on the third metasurface, phi < 1 > and phi < 2 > are angles under a cylindrical coordinate system, phi < 1 > = tan-1 (y2 / x2), and phi < 2 > = tan-1 (y3 / x3). The planar structure of the super-structure lens avoids spherical aberration and chromatic aberration, the numerical aperture is increased, the super-structure lens is small in size and beneficial to integration, and free adjustment of the full-space focus can be achieved.

The invention discloses a lamp body control device capable of improving penetrability and having a color changing control function, relates to the technical field of lamp body color changing control, and solves the problems that a distance adjusting lamp used at present does not have a flexible multi-color fixed-point control function, cannot be quickly switched among a plurality of lamp groups with fixed colors, and is not beneficial to quick adjustment. A lamp body control device capable of improving penetrability and having a color changing control function comprises a lampshade, a main body of the lampshade is of a cylindrical structure, a power source and a matched charging structure are arranged in the lampshade, and a spring pin set is fixedly arranged at the front end of the top of the lampshade; two sets of shaft brackets are fixedly arranged on the two sides of the front end in the lampshade, through the arrangement of the lamp pile, the function of rapidly switching colors is provided, light control is achieved through the cooperation of physical rules and the convenient power connection technology, and color adjustment can be completed by connecting different LED lamps.

The utility model relates to a mobile phone with a camera function, which belongs to the mobile communication technology. It includes housing, user interface, system module, CAMERA chip and related circuits. It also includes a hardware interface module, a control software module for controlling the CAMERA chip, a storage module and a sound module. The control software module also includes a control module that reads image data and sends them to the CPU, completes functions such as PREVIEW, taking pictures, and focal length transformation, and sends images to LCD display. The control block of the PREVIEW function also includes a flash memory for storing interrupt handlers. The interrupt processing program includes detecting the beginning of the first frame, processing the complete data of each frame, resetting the buffer once when an error occurs after the interrupt occurs, and sending the image data to the LCD display by the CPU after obtaining a complete frame of data. It can realize functions such as photographing, zooming and image modification without increasing hardware and production costs, and can be widely used in mobile communication and photographing.

The invention discloses a lighting vehicle capable of automatically expelling dust and changing the lighting distance for a mine. The device comprises a vehicle shell, a drill bit power space is formed in the vehicle shell, a vehicle shell upper space is arranged above the drill bit power space, a vehicle shell vertical partition plate is fixedly connected to the upper surface of a vehicle shell partition plate, an air blower is fixedly connected to the left side surface of the vehicle shell, the process is achieved through a control device and a dust expelling device, when dust is too large,the control device can automatically start the air blower to supply air to the part needing dust expelling, air flowing is accelerated, heat dissipation of the lamp is accelerated, two purposes are achieved at a time, in the aspect of the lamp illumination mode, zooming of the lamp is achieved through a zooming mechanism and different lens combinations, and more illumination mode choices are provided.

The invention discloses an angle adjustable audio-video monitoring device which comprises a video sever, a camera, an alarm box, a memorizer and an output device. The camera, the alarm box, the memorizer and the output device are all in signal connection with the video server. The angle adjustable audio-video monitoring device further comprises a cloud deck decoder and a sound pickup, wherein the cloud deck decoder is connected with the video server through an RS485 interface, and the sound pickup is in signal connection with the video server. By the adoption of the structure, the angle adjustable audio-video monitoring device can achieve zoom, focus and the like of a camera lens through the cloud deck decoder, on-site sound can be further collected, and therefore good monitoring video quality can be obtained.

The invention discloses an all-weather telescope type laser distance measurement instrument which is characterized in that a power supply circuit is connected with a delay power failure circuit; the delay power failure circuit is connected with a voltage detection circuit, a main control circuit, a switching control circuit, an azimuth measurement circuit, an angle measurement circuit, a laser distance measurement module, a Beidou positioning circuit, a thermal imaging camera, a DSP (digital signal processor) image processing module, an SD (secure digital) card video recording module, a video recording and zooming control circuit, a lens zoom drive circuit, a video switching circuit and a binocular display respectively, and is used for supplying power; the voltage detection circuit, the main control circuit and the switching control circuit are connected in sequence; the azimuth measurement circuit, the angle measurement circuit, the laser distance measurement module, the Beidou positioning circuit and the DSP image processing module are connected with the switching control circuit respectively; the thermal imaging camera, the DSP image processing module and the SD card video recording module are connected in sequence; the video recording and zooming control circuit is connected with the lens zoom drive circuit and the SD card video recording module; the DSP image processing module and the SD card video recording module are connected with the video switching circuit respectively; the video switching circuit is connected with the binocular display. The laser distance measurement instrument has the characteristics of all-weather use, integration of functions of laser distance measurement, thermal imaging, Beidou positioning, video recording and the like, small size, good portability for carrying, and good simplicity for operation.

The handset includes case, user interface, system module, CAMERA chip and relevant circuits. Also, the handset includes hardware interface module, control software module for controlling CAMERA chip, memory module and sound module. The control software module has functions of sending image data read to CPU, completing PREVIEW, taking photo and changing focus etc. as well as includes the control module for sending image to LCD. The control module providing PREVIEW function includes a flash memory storing interrupt handling program. The interrupt handling program includes programs: detecting the start of the first frame, processing complete each frame data, resetting buffer once if error occurs after interrupt, and sending image data to LCD by CPU after obtaining complete each frame data. The invention realizes functions of taking photo, zooming and modifying image without need of increasing hardware.

The invention relates to a zoom lens which comprises a compensation group (G1) with negative focal power, a first fixed group (G2) with positive focal power and a zoom group (G3) with positive focal power which are sequentially arranged from an object side to an image side along an optical axis, and further comprises a second fixed group (G4) located on the image side of the zoom group (G3). In the zooming process, the first fixed group (G2) and the second fixed group (G4) are fixed relative to image plane positions, and the compensation group (G1) and the zoom group (G3) can move along an optical axis. The zoom lens provided by the invention has the characteristics of ultra-large aperture, large target surface and low cost.

The embodiment of the invention relates to a lens system. The lens system comprises a substrate, an attached piece, transparent fluid and a pressure adjustor; the substrate and the attached piece arelenses with focal power and of gradational non-spherical shapes; and the attached piece can produce corresponding shape change along the change of the borne pressure; the substrate and the attached piece are connected by adopting a splicing way of hot-melting or optical gluing, or integrated and connected by adopting a molding in one technology; an enclosed cavity is formed between the substrate and the attached piece so as to adjust the volume of the transparent fluid; the pressure adjustor enables the volume of the transparent fluid in the enclosed cavity to change by changing the filling pressure of the transparent fluid, thereby enabling various surfaces of the lens system to deform; the optical characteristic is presented that the entire focal length is changed, and the zooming is realized; the lens system disclosed by the embodiment of the invention can be suitable for various optical instrument equipment so as to realize the zooming, the variation and like optical functions; theinstrument is small in volume, high in performance and low in cost.

The invention relates to a focusing illumination lamp which comprises a lamp seat, wherein the lamp seat is provided with an illuminant body, a lamp groove is formed in the center of the front end of the lamp seat, the illuminant body is arranged in the lamp groove, a first lens is arranged at the front end of the lamp groove, a first lamp shell is arranged on the outer side of the lamp groove, a second lamp shell is arranged on the outer side of the first lamp shell, the first lamp shell is sleeved with the rear end of the second lamp shell, a lamp tube is arranged in the second lamp shell, the lamp tube is in moving fit with the second lamp shell through a screw joint structure, a second lens is arranged at the front end of the lamp tube, a cavity of the first lamp shell and a cavity of the second lamp shell together form a light beam channel of the illuminant body, and the first lens and the second lens are both arranged on the light beam channel. The focusing illumination lamp can achieve zoom, the spot size can be continuously adjusted, emergent spots are even and soft and have no obvious edges, illumination from different angles on cultural relics of different sizes can be achieved, and the three-dimensional illumination effect of the cultural relics can be achieved.

The invention provides a large-aperture glass-plastic hybrid zoom lens which comprises a compensation group and a zoom group. Total focal power of the compensation group is negative, the total focal power of the zoom group is positive, and zooming is realized by changing the interval between the compensation group and the zoom group; the compensation group comprises a first lens with convex-concave negative focal power, a second lens with biconcave negative focal power, a third lens with convex-concave negative focal power and a fourth lens with convex-concave positive focal power which are sequentially arranged along the incident direction of light; the zoom group comprises a fifth lens with double convex positive focal power, a sixth lens with double concave negative focal power, a seventh lens with convex-concave positive focal power, an eighth lens with double convex positive focal power, a ninth lens with double convex positive focal power and a tenth lens with convex-concave negative focal power which are sequentially arranged along the incident direction of light. By using a mixed structure of the glass spherical surface and the plastic aspheric surface, the focal power is reasonably distributed, the excellent performance of no defocusing under the high and low temperature environment of -40 DEG C to 85 DEG C is realized, and large aperture and low cost are both taken into consideration.

The invention discloses an ultrathin liquid film zoom lens based on a liquid surface tension effect, and belongs to the technical field of optical lenses. The zoom lens is mainly composed of a front lens, flat glass and a rear lens. The front lens comprises a front lens cavity, a front liquid injection controller, a front liquid channel and a front liquid. The rear lens comprises a rear lens cavity, a rear liquid injection controller, a rear liquid channel and a rear liquid. By controlling the volume of the front liquid in the front lens cavity, the front liquid surface deformation in the front lens is realized by utilizing the surface tension effect of the front liquid. By controlling the volume of the rear liquid in the rear lens cavity, the rear liquid surface deformation in the rear lens is realized by utilizing the surface tension of the rear liquid. The liquid surface deformation in the front lens and the rear lens is controlled by controlling the liquid surface deformation in the front lens cavity and the rear lens cavity, and the zoom of the liquid film lens is realized by controlling the combination of the liquid surface deformation of the front lens and the rear lens. Thezoom lens has the advantages of being small in size, light in weight, low in cost, high in zoom speed, high in zoom precision and the like.

The invention relates to a structure for reducing speckles and improving light spot uniformity and a laser searchlighting device. The structure comprises a laser generator and an optical fiber, the structure is characterized by further comprising a vibration motor, the output position of the vibration motor is fixedly provided with m polarization correcting plates, the m polarization correcting plates abut against the side wall of the optical fiber at the same time, and the n polarization correcting plates and the m-n polarization correcting plates are respectively arranged at two sides of theoptical fiber. The structure has the effect of reducing the speckles.

The invention discloses a camera module and electronic equipment, the camera module comprises a module shell, a guide seat, a liquid lens, a push block assembly, a driving assembly and an imaging device, the driving assembly is connected with the push block assembly to drive the push block assembly to reciprocate in a first direction along the guide seat so as to drive the liquid lens to deform, so zooming of the liquid lens is realized. The push block assembly reciprocates in the first direction along the guide seat, that is, under the guidance of the guide seat, the push block assembly can be prevented from displacing in the direction perpendicular to the first direction, so that the displacement of the push block assembly can bring more definite deformation to the liquid lens, and the zooming precision is improved.

The present invention relates to a zoom lens comprising a compensation lens group (G1) having a negative refractive power, a stop (STO), and a zoom lens group (G2) having a positive refractive power arranged in order along an optical axis from an object side to an image side, the compensation lens group (G1) comprising a first lens (L1), a second lens (L2), and a third lens (L3) along the optical axis from the object side to the image side, the zoom lens group (G2) comprises fourth optical elements (B4, L4), a fifth lens (L5), a sixth lens (L6), a seventh lens (L7) and an eighth lens (L8), and the eighth lens (L8) is a convex-concave lens. According to the zoom lens, infrared confocal, athermalization and ultralow cost can be realized.

The invention provides an electric control optical zoom system which comprises a lens guide cylinder, two sliding lenses arranged in the lens guide cylinder, a lens cam cylinder sleeving the outer side of the lens guide cylinder, a driven gear sleeving the outer side wall of the upper end of the lens cam cylinder, and an annular magnetic grid sleeving the outer side of the upper end of the lens cam cylinder. The magnetic induction sensor is arranged on the upper side of the annular magnetic grid, the direct-current gear motor is arranged on one side of the lens cam cylinder, the control circuit board is connected with the magnetic induction sensor and the direct-current gear motor, the direct-current gear motor drives the driving gear, the driven gear and the lens cam cylinder to rotate, and zooming of the lens is achieved. The rotation angle of the lens is positioned through the magnetic grid and the magnetic induction sensor which are annularly arranged, errors of a transmission system are eliminated, meanwhile, the precision of the magnetic grid and the magnetic induction sensor is extremely high, and the zoom precision of the lens can be effectively improved.

The invention provides a camera module and an imaging method, and the camera module comprises a first variable-focus optical lens and a second variable-focus optical lens, and the focal lengths of the first variable-focus optical lens and the second variable-focus optical lens can be adjusted. Zooming and focusing of the camera module can be realized by adjusting the focal length of the first variable-focus optical lens and the focal length of the second variable-focus optical lens. Therefore, the distance between the lenses does not need to be adjusted to realize zooming and focusing of the camera module, so that the camera module can be miniaturized.