50results about How to "Focus adjustment" patented technology

The invention relates to remote-control variable-focal length glasses and belongs to the technical field of applied optics. The problem to be solved by the invention is to change glasses constantly with the change in eyesight for the nearsighted and farsighted. In the glasses, lenses are liquid variable-focal length lenses (1), a micro battery, a DC/DC chip and a control circuit module are integrated in a glass frame (2), an infrared signal receiving device is integrated in a nose frame (3), the glass frame (2), the nose frame (3) and the lenses (1) form a conducting loop, a remote controller ff(4) serves as an infrared signal transmitter, and the voltage applied on the liquid variable-focal length lenses (1) is adjusted to change the focal length of the glasses. The glasses have the advantages of continuous focal length change, durability, simple structure and diversifiable appearance design.

The invention discloses a spotlight type multifunctional solar cooking device. The device comprises a spotlight reflecting mirror, a barbecue vacuum tube and a photovoltaic cell system, wherein the spotlight reflecting mirror is fixed on a reflecting mirror support, the reflecting mirror support is capable of being adjusted at the pitching and horizontal positions through a double-shaft adjustable tracking system, the double-shaft adjustable tracking system is fixed on a tracking base disk, the barbecue vacuum tube is fixed at the focusing position of the spotlight reflecting mirror through a barbecue vacuum tube support, the photovoltaic cell system is installed on photovoltaic cell panel supports which are located on two sides of the spotlight reflecting mirror, the photovoltaic cell panel supports are fixed on the reflecting mirror support, the photovoltaic cell system is used for supplying power for the double-shaft adjustable tracking system, and the spotlight reflecting mirror is a parabolic spotlight reflecting mirror or a compound parabolic concentrator (CPC) composite spotlight reflecting mirror. The spotlight type multifunctional solar cooking device has the advantages that high concentration spotlight is achieved, temperature rising is rapid and efficiency is high, required time for cooking food can be reduced, and multistage differentiation food processing is achieved.

The invention discloses an adjustable LED street lamp light source which comprises a packaging substrate, a chipset mounted on the packaging substrate, a dimming device comprising a threaded sleeve and a rotary drum which are matched, a lens group comprising a concave lens and a convex lens, and a fluorescent tube, wherein the concave lens is arranged on the threaded sleeve, the convex lens is arranged at the front end of the rotary drum, and the fluorescent tube is arranged between the chipset and the lens and filled with a liquid fluorescent material. The invention solves the technical problem and provides the LED street lamp light source capable of adjusting the light-focusing degree. According to the adjustable LED street lamp light source disclosed by the invention, the lens group matched with and controlled by the dimming device is adopted, so that focal length match among various lenses of the lens group is achieved, further, light type of the light source can be adjusted and controlled, and the controllability of the LED street lamp light source is improved effectively.

The invention discloses a focal length regulating mechanism and a photographic apparatus having the same. The focal length regulating mechanism of the invention is arranged in the photographic apparatus and regulates the focal length of a camera lens set of the photographic apparatus. The focal length regulating mechanism comprises a focal length regulating knob which is combined with a shell of the photographic apparatus and provided with a contact part, and a pressure sensing module which is arranged at the position corresponding to the focal length regulating knob in the photographic apparatus, is contacted with the contact part and is electrically coupled with the camera lens set. When the focal length regulating knob is pressed, the pressure sensing module can generate different signal values according to the pressing quantity so as to determine the focal length of the camera lens set according to the different signal values. Besides, the invention also provides a photographic apparatus having the focal length regulating mechanism.

The invention discloses a mode control cascading-type liquid crystal micro lens array, relates to a liquid crystal micro lens array, and particularly relates to the technical field of mode control cascading-type liquid crystal micro lens arrays. The mode control cascading-type liquid crystal micro lens array comprises an upper substrate, a lower substrate and an internal packaging liquid crystal layer wherein the upper substrate and the lower substrate are arranged in parallel, the upper substrate includes upper substrate glass, a grounding electrode layer and an upper substrate alignment layer, the upper substrate glass, the grounding electrode layer and the upper substrate alignment layer are arranged in sequence, the lower substrate includes lower substrate glass, a contact electrode layer, a high surface resistance layer, a polymer solid lens and light an alignment layer, a gasket is arranged between the upper substrate alignment layer and the contact electrode layer in a distributed mode, and the internal packaging liquid crystal layer is formed by the upper substrate alignment layer, contact electrode layer and a gasket. According to the mode control cascading-type liquid crystal micro lens array, the purposes of being adjustable in focal distance, low in driving voltage and fast in response speed and time are achieved.

The invention discloses a rapid automatic focusing device, which comprises an aperture stepping motor, a focal length stepping motor, a motor driving module, a graphic processing unit, a positioning unit, a communication device, an image recognition unit, a power supply module, a display module and a data processing unit, wherein the aperture stepping motor and the focal length stepping motor arerespectively connected with the motor driving module; and the motor driver, the graphic processing unit, the positioning unit, the communication device, the image recognition unit and the power supplymodule are respectively connected with the data processing unit. According to the rapid automatic focusing device, dynamic setting of aperture values and focal length values in various scenes can berealized, and a good imaging effect is ensured.

The invention provides a lens focusing mechanism comprising an elastic lens surface, a liquid storage chamber, a connecting pipe and a permeable membrane, wherein an accommodating chamber is defined in the elastic lens surface, and at least two liquids which are not mutually dissolved and have different refractive indexes are in the accommodating chamber; the liquid storage chamber is disposed onthe outer side of the elastic lens surface and communicated with the accommodating chamber; one end of the connecting pipe is communicated with the liquid storage chamber, and the other end of the connecting pipe is communicated with the accommodating chamber; and the permeable membrane is arranged between the connecting pipe and the accommodating chamber. According to the lens focusing mechanism,by utilizing the structure of combining the elastic lens surface, the liquid storage chamber, the connecting pipe and the permeable membrane, flexible focusing can be achieved, and the lens focusingmechanism has the advantages of having a wide focusing range, being convenient to use and facilitating processing and production.

The invention relates to a rust removal device for an automobile mold. The rust removal device comprises an anti-rust device, a laser rust removal device and a dust removal device, wherein a compressor is arranged inside the anti-rust device, the compressor is connected with a gas storage tank, the gas storage tank is connected with an oil storage tank, and a spraying pipe is arranged below the oil storage tank; the spraying pipe is connected with a spraying head, and a galvanometer controller, a laser refrigerator and a rust removal laser are arranged inside the laser rust removal device; therust removal laser is composed of a light source and a beam expander, the laser refrigerator and the beam expander are both connected with an optical fiber pipe, the tail part of the optical fiber pipe is jointly connected with a rust removal laser head, and a focusing lens, a light splitting device and a scanning galvanometer are sequentially arranged inside the rust removal laser head; the scanning galvanometer is electrically connected with the galvanometer controller and the beam expander, a controller is arranged on the right side of the laser rust removal device, a dust remover is arranged inside the dust removal device, a dust suction pipe is connected below the dust remover, and the dust suction pipe is connected with the dust suction head. The device has the advantages that the structure is simple, the rust removal is convenient, and the application range is wide.

The invention discloses a lens focal length adjustable VR camera. The camera comprises a casing and a lens barrel, the bottom inner wall of the casing is provided with a motor, the motor is positioned at one side of the casing, an output shaft of the motor is connected with a screw, the screw is provided with third threads, the side, far from the inner wall of the casing, of the motor is provided with a sliding seat, the four corners of the bottom of the sliding seat are provided with first sliding columns respectively, the first sliding columns are in sliding connection with a chute, the chute is placed in the bottom inner wall of the casing, the side, close to the motor, of the sliding seat is provided with a fourth circular fixing hole, the inner wall of the fourth circular fixing hole is provided with fourth threads, the fourth threads cooperate with the third threads, the top of the sliding seat is provided with two support columns, the support columns are positioned in the two sides of the sliding seat respectively, and an image surface is arranged over the sliding seat. The VR camera is simple in structure, lower in cost, economical and practical, and the focal length of a lens in the VR camera is convenient to adjust so that the VR camera has a good shooting effect.

The invention discloses a universal position adjusting support for chip photographing. The universal position adjusting support comprises an adjusting support whole base, a whole base spherical hinge, a connecting rod, a sliding rod, an object table rotating base, a rotating base spherical hinge and an object table. The adjusting support whole base is composed of two half base bodies, and adjusting nuts are screwed in the adjusting support whole base to clamp the whole base spherical hinge; the upper end of the whole base spherical hinge is fixedly connected with the connecting rod, and the sliding rod is fixedly connected with the object table rotating base and can vertically slide in the connecting rod; the object table rotating base is composed of two half base bodies, and adjusting nuts are screwed in the object table rotating base to clamp the rotating base spherical hinge; the rotating base spherical hinge can rotate in the rotating base, and the angle of the object table can be adjusted and fixed by adjusting the angle of the rotating base spherical hinge and the angle of the whole base spherical hinge; and a magnetic piece is attached to the object table and attracts metal chips. According to the invention, the universal position of the object table can be achieved, and fixed photographing of various angles of the chips can be effectively achieved.

The invention discloses laser vibration measurement equipment and an adjusting method thereof. The equipment comprises a first laser device, a second laser device, a third laser device and a focusing device. The focusing device comprises a plurality of lenses. Light emitted by the third laser device is transmitted along optical axes of the multiple lenses. A first light path changing device is arranged on the light emitting light path of the first laser device. A second light path changing device is arranged on the light emitting light path of the second laser device. Light emitted by the first light path changing device and the second light path changing device is parallel to light emitted by the third laser device. The focusing device is used for performing focusing on parallel light from the first and second light path changing devices and the third laser device. The distance between the light emitting light path of the third laser device and each light emitting light path in the first and second light path changing devices is a first distance. The minimum distance between the light emitting light path of the third laser and the light emitting positions of the first laser device and the second laser device is a second distance. The first distance is smaller than the second distance.

The invention provides a lens group and near-to-eye display equipment, and relates to the technical field of optics; and the lens group comprises a focusing convergent lens assembly, a first optical element and a second optical element which are sequentially arranged in a light outgoing direction. The first optical element is used for enabling an incident light beam to be partially transmitted andpartially reflected, a reflected light beam, reflected by the first optical element, of the convergent light beam emitted from the focus-adjustable convergent lens assembly is emitted towards a second optical element, and after being reflected by the second optical element, the reflected light beam is imaged in a target area through the first optical element. When a myopia or hyperopia user findsthat an image is not clear when watching a picture in a target area through the lens group, the focal length of the whole lens group can be adjusted by adjusting the focal length of the focus-adjustable converging lens assembly, so that the watching requirement of the myopia or hyperopia user when using the lens group is met, and the use experience of the user is improved.

The invention provides a lens and a manufacturing method there as well as a pair of glasses and an optical system. The lens comprises a fresnel liquid crystal lens and a geometric lens. According to the lens provided by the invention, the fresnel liquid crystal lens can electrically control and adjust the focal length of the lens; furthermore, the fresnel liquid crystal lens is also combined withthe geometric lens for use, the focal length and wavelength of the fresnel liquid crystal lens are inversely proportional, and the focal length of the geometric lens is proportional to the wavelengththe geometric lens, so that the problem of chromatic aberration of the common optical component can be effectively reduced by the combination of the fresnel liquid crystal lens and the geometric lens.

In order to solve the problems of the prior art such as the small sizes of the images projected by the conventional on-board head-up display systems and the limited information displayed by the projected images, the invention provides an on-board head-up display system comprising a display screen assembly and a three-reflection type optical assembly. The three-reflection type optical assembly comprises a zoom lens assembly, an image quality compensation lens assembly, and a front windshield compensation lens assembly, which are sequentially arranged on an optical path. The zoom lens assembly comprises a zoom lens body and a zoom lens focusing assembly. The image quality compensation assembly comprises an image compensation lens body and an image compensation lens focusing assembly. The on-board head-up display system is advantageous in that the continuous zooming can be realized, and the projected image can be magnified by a plurality of times even dozens of times, and the position of the image surface can be remained; the image surface quality is stable, and the image surface cannot be fuzzy or deformed because of the magnification; the abundant information can be provided for the driver in the limited space, and the technical guarantee can be provided for the enriching of the use functions of the on-board head-up display system.

The invention provides an array waveguide grating demultiplexer chip of a cladding integrated micro lens and a preparation method of the array waveguide grating demultiplexer chip, and is used for solving the technical problem that the photoelectric conversion efficiency is low when an existing array waveguide grating demultiplexer chip is coupled with a detector in the vertical direction. According to the array waveguide grating demultiplexer chip prepared by the preparation method, a micro lens is processed on the surface of a cladding of a 45-degree total reflection light path by utilizing a semiconductor process, a light beam is horizontally propagated to an output waveguide in a core region layer, is reflected by a 45-degree total reflection angle at the output waveguide, and passes through the cladding in the vertical direction; and the micro-lens corresponding to the core area layer on the cladding is used for focusing, the size of the light beam is reduced, most of light beam energy of the light beam can be received by the light receiving surface of the detector, the optical coupling efficiency is improved, the distance between the chip and the detector does not need to be reduced due to the existence of the micro lens, the coupling distance between the chip and the detector is increased, the coupling packaging difficulty is reduced, and the efficiency is improved.

The invention discloses a display panel, display equipment and a terminal. The display panel comprises a first folding screen and a second folding screen, the first folding screen comprises a camera shooting area; a front camera and a rear camera are arranged in the camera shooting area; the second folding screen and the first folding screen can be folded relatively, and the second folding screen comprises a focus expansion area corresponding to the camera shooting area; and the focus expansion area is provided with a focus expansion lens. The front-facing camera is located below the first folding screen, and the zoom lens is located below the second folding screen, so that hole digging of the folding screens is avoided, and full-screen display is realized. Meanwhile, when the first folding screen and the second folding screen are relatively folded, the focus expansion lens can be overlapped with the front camera or the rear camera, so that the length of the front camera or the rear camera is indirectly increased, the focus of the front camera or the rear camera is expanded, and therefore, on the premise that the length of the camera is limited, the focal length of the camera is adjusted, and the practicability of the terminal is improved.

An embodiment of the invention relates to a lens system. The lens system comprises a left lens device, a right lens device, a chip and a motor, wherein the left lens device comprises a left shell, a left film, a left annular support frame, a left piston gas-liquid bag and a left gas-liquid control valve; the right lens device comprises a right shell, a right film, a right annular support frame, a right piston gas-liquid bag and a right gas-liquid control valve; the chip is used for generating motor control data, left gas-liquid control valve control data or right gas-liquid control valve control data; the left gas-liquid control valve changes the diameter of a left liquid guiding tube, or the right gas-liquid control valve changes the diameter of a right liquid guiding tube; the motor controls first stepping of a left piston push rod, so that first fluid with first injection amount in the left piston gas-liquid bag flows into a left first inner cavity; the first quantitative deformation of the left film is increased under the pressure of first fluid; the first curvature of the left film is increased; and therefore, the left film is adjusted to achieve a first reduction control focal length.

The invention belongs to the technical field of infrared sensors, and particularly relates to a pyroelectric infrared sensor and a packaging method thereof. The packaging method of the pyroelectric infrared sensor comprises the following steps: S1, preparing a semi-finished product of a pipe cap: arranging a window on the pipe cap, and embedding an infrared optical filter on the window; s2, preparing a semi-finished product of the substrate: forming a solder paste integrally-formed supporting piece bonding pad on the substrate, and coating the solder paste on the solder paste integrally-formed supporting piece bonding pad; enabling the substrate coated with the solder paste to pass through a reflow soldering furnace to melt tin and solidify, and forming the solder paste integrally-formed supporting piece on the solder paste integrally-formed supporting piece bonding pad; s3, an infrared sensitive element is installed, wherein the infrared sensitive element is installed on the solder paste integrally-formed supporting piece; and S4, mounting a pipe cap: mounting the pipe cap on the upper surface of the substrate. According to the solder paste integrally-formed supporting piece, the number of used raw materials and parts is small, and the working procedure is simple.

The invention provides an image electronic device and a driving method. The image electronic device comprises a barrel-shaped container; a conductive liquid and an insulating liquid, which have the same density but different optical refractive indexes, are not mutually dissolved and are filled in the barrel-shaped container; an image electronic device, which is positioned at one end of the barrel-shaped container and is in contact with the conductive liquid; a light-transmitting window, which is positioned at the other end of the barrel-shaped container and is in contact with the insulating liquid; a first electrode, which is connected with the conductive liquid; an electric field is formed between the second electrode and the conductive liquid; and a voltage source, which applies a variable voltage between the first electrode and the second electrode. The voltage source can change the shape of the interface of the conductive liquid and the insulating liquid so as to form a variable-focus liquid lens. The liquid lens and the image electronic device are integrated, the light utilization rate is improved, and the image electronic device is miniaturized.