21results about How to "Image stabilization" patented technology

The invention discloses a prime lens and a camera, and relates to the technical field of prime lenses, the prime lens is provided with an object side and an image side which are oppositely arranged along the optical axis direction, the prime lens comprises a first lens group, a second lens group, a third lens group and a fourth lens group which are sequentially arranged from the object side to the image side, and the four lens groups comprise eleven lenses, the first lens, the fourth lens, the seventh lens, the eighth lens and the tenth lens have positive focal power; the second lens, the third lens, the fifth lens, the sixth lens, the ninth lens and the eleventh lens have negative focal power; wherein the third lens group is movably arranged along the extension direction of the optical axis and is used for focusing, so that the aperture number of the prime lens is adjustable in a range of 1.6-2.0, the variation range of a field angle is less than 5%, and the distortion degree of the prime lens is less than 3%. According to the technical scheme provided by the invention, the technical effects of large aperture and stable imaging are achieved through the arrangement and combination of the eleven lenses and the design of the lenses.

The invention belongs to the field of eye protection, and provides a curved mirror imaging eye protection device which comprises a shell, an observation window is formed in the front end of the shell, a refraction window is formed in the bottom of the shell, a base is connected to the edge of the bottom of the shell, first lamp strips are installed on the two sides of the bottom of the base, and second lamp strips are connected to the two ends of the bottom of the base. Bolt seats are mounted at the top and the bottom of the rear end of the shell; the lens supporting mechanism is installed in the shell, and a bevel lens is installed in the lens supporting mechanism in an inclined mode. By means of the closed design, foreign matter can be effectively prevented from damaging the curved mirror, imaging stability of the curved mirror is guaranteed, the situation that the curved mirror is exposed outside to be polluted, so that the mirror surface is stained, and the mirror surface is stained and scratched is avoided, meanwhile, a certain angle is kept between the bevel lens, the curved mirror and the bevel light splitting refractor, and the service life of the curved mirror is prolonged. And the imaging effect of the device is ensured.

The utility model relates to a lens assembly and a camera. The lens assembly comprises a lens module, a shell and an ultrasonic generation device. The lens module comprises a lens main body and a lens barrel extending from the lens main body; the shell comprises a shell body and a lens, the shell is provided with a light inlet, the lens is arranged at the light inlet in a sealing mode, the shell body covers the lens cone, and the light inlet and the lens cone are arranged correspondingly; the ultrasonic generating device comprises a plurality of ultrasonic vibrators, the ultrasonic vibrators are arranged around the lens cone at intervals and are in transmission connection with the lens, and the vibration frequency of at least one ultrasonic vibrator is smaller than that of the remaining ultrasonic vibrators. When the lens is cleaned, water drops on the lens can move towards the low-frequency ultrasonic vibrator, residual water stains on the lens can be atomized and disappear under the vibration of ultrasonic waves, and therefore the lens cleaning efficiency is greatly improved, dirt on the lens can fall off under the vibration of the ultrasonic vibrator, and normal work of a camera is guaranteed.

The utility model relates to a fixed micro surgical panoramic camera, and relates to the technical field of medical instruments. Comprising a camera shell, a camera body, a single-shaft rotating body and a fixed tooth clamp, the camera body is installed in the camera shell, LED lamps are arranged on the two sides of the camera body, the bottom of the camera shell is rotationally connected with the single-shaft rotating body, and the fixed tooth clamp is installed on the single-shaft rotating body. The single-shaft rotating body is rotationally connected with the camera shell, pitching motion of the camera body can be manually achieved, the viewing angle of the camera body can be adjusted, and therefore the focus position in the surgical operation can be accurately positioned, and the view blind area is reduced.

This utility model relates to the field of medical device technology, and in particular to an intraoral scanning mounting structure and an intraoral scanning device. The intraoral scanning mounting structure includes: a housing with a mounting position, on which a protrusion is provided; an electro-optical component is mounted on the mounting position, and a groove is formed on the circumferential edge of the electro-optical component for the protrusion to extend into, thereby positioning the electro-optical component; an elastic component includes a first elastic member and a second elastic member, which are independently provided. The first elastic member is clamped between the mounting position and a first wall of the electro-optical component, and the second elastic member is clamped between the mounting position and a second wall of the electro-optical component, thus satisfying the installation and fixing requirements while allowing the electro-optical component to move within the mounting position due to thermal expansion and contraction; in the circumferential direction of the electro-optical component, a groove is provided between the portion of the first wall that abuts against the first elastic member and the portion of the second wall that abuts against the second elastic member, thereby ensuring the installation accuracy requirements of the electro-optical component.

The utility model discloses a high-compatibility imaging and temperature control system for an ovarian simulated organ and a zebra fish early embryo, which comprises a mold and a culture dish, agarose is placed in the culture dish, the mold is used for rubbing the ovarian simulated organ and an embryo imaging dish on the agarose, and the system further comprises an electric heating film and a temperature controller, the electric heating film is arranged below the culture dish, the input end of the electric heating film is electrically connected with the temperature controller, and an inductive probe of the temperature controller is arranged in the agarose for temperature monitoring; the mold comprises an ovarian organ simulating mold and a zebra fish early embryo mold. The mold is more fit in design and good in stability, 63 ovarian simulated organs or 30 early embryos can be contained at the same time, the mold is used in cooperation with a temperature controller and an electric heating film, imaging is stable, development temperature control is accurate, the operation difficulty is low, and repeatability is high.

The utility model relates to the technical field of liquid crystal display screens, in particular to a liquid crystal display screen capable of displaying in different areas, which comprises a glass cover plate. A partition display mechanism is arranged on the upper end surface of the glass cover plate; a single-chip liquid crystal display screen is arranged on the lower portion in the glass cover plate, and a columnar grating is arranged on the upper portion of one side of the single-chip liquid crystal display screen. The partition display mechanism comprises a naked eye area D and a high-definition area D, the naked eye area D is arranged at the upper end of the left side of the glass cover plate, and the high-definition area D is arranged at the upper end of the right side of the glass cover plate. According to the naked-eye 3D and 2D high-definition display based on the single-chip LCD, the single-chip LCD, the columnar grating, the coating and the glass cover plate are combined, naked-eye 3D and high-definition 2D one-screen partition display is achieved, it is guaranteed that image information is comprehensively and completely displayed in two areas respectively, the use experience of the display is improved, the naked-eye 3D area and the high-definition 2D area can be accurately divided by the partition coating, and the display quality is improved. And the images of the two regions are ensured to be free from crosstalk.

The invention discloses a wide-temperature long-wave infrared coaxial four-mirror optical lens for space tiny dark and weak target detection, and solves the problems that an existing optical lens for space tiny dark and weak targets is large in size, high in weight and poor in temperature adaptability. The first reflecting mirror, the second reflecting mirror, the third reflecting mirror and the fourth reflecting mirror are sequentially and coaxially arranged from a light incident end to a light emergent end; the reflecting surfaces of the first reflecting mirror and the second reflecting mirror are oppositely arranged, and the reflecting surfaces of the third reflecting mirror and the fourth reflecting mirror are oppositely arranged; light through holes are formed in the centers of the second reflector, the third reflector and the fourth reflector; the second reflector is used for receiving incident light and reflecting the incident light to the first reflector, and light beams reflected by the first reflector enter the fourth reflector through light through holes in the centers of the second reflector and the third reflector and are reflected to the third reflector for reflection. And the light beams reflected by the third reflector pass through a light through hole in the center of the fourth reflector and then are converged to a photosensitive receiving surface of an external detector.

The present invention relates to a low-distortion 4K pixel optical lens and an imaging method thereof, wherein the optical system comprises a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from left to right along the incident light path of the light; the first lens L1 is a meniscus positive lens, the second lens L2 is a double convex positive lens, the third lens L3 is a double concave negative lens, the fourth lens L4 is a double concave negative lens, the fifth lens L5 is a double convex positive lens, the sixth lens L6 is a double convex positive lens, and the seventh lens L7 is a meniscus negative lens. The above lenses are all spherical lenses, and are all made of glass. The optical lens not only has stable imaging, but also has small distortion.

The utility model relates to the technical field of endoscope, disclose a kind of endoscope imaging system and hyperspectral endoscope, system includes: light source device, including light source module, light source adjusting assembly, light source module emits light after passing through light source adjusting assembly and emits;Light source adjusting assembly is used to adjust the light intensity when irradiating to target object;Lens device, including light emitting component, imaging component;Light emitting component is used to emit the illumination light produced by light source device to target object, camera lens is used to receive the illumination light reflected from target object back, and image in image sensor;Data processing device is connected with image sensor communication, for obtaining the spectral data after image sensor, to generate the image data corresponding to target object.The utility model provides an endoscope imaging system by light source adjusting assembly adjusts light intensity, so that endoscope imaging system can be under different irradiation conditions Stable output suitable light intensity, improve the stability and imaging quality of endoscope imaging.

The utility model relates to the technical field of vein palmprint identification, in particular to vein palmprint identification equipment, which comprises a main control chip, an infrared light source module, an optical imaging module, a living body detection module, a heat dissipation structure and an anti-counterfeiting processing module. According to the utility model, the structure is novel, infrared light can uniformly irradiate a palm, edge dark areas or center overexposure can be avoided, vein image quality can be improved, ambient light interference can be effectively inhibited, aberration can be reduced, blood vessel edge definition can be improved, and counterfeiting means such as silica gel artificial hands, photos or vein printing can be effectively resisted; the LED working temperature stability is ensured, wavelength drift is avoided, the service life is prolonged, the palm of a user is automatically adjusted to the optimal imaging position, the operation difficulty is reduced, the recognition success rate is improved, stable imaging can be ensured under different illumination conditions, the calculation amount is reduced while the precision is ensured, the recognition efficiency is high, and the energy consumption is low.

The utility model discloses an automobile safe driving DMS optical imaging lens, which relates to the technical field of optical systems and vehicle-mounted imaging devices and sequentially comprises a first lens, a diaphragm, a second lens, a third lens, a fourth lens, an optical filter, protective glass and an image plane from an object plane to an image plane along an optical axis. Wherein the third lens and the fourth lens form a group of glued lenses. The maximum target surface of the DMS optical imaging lens for safe driving of the automobile can reach 7.41 mm, the DMS optical imaging lens can be matched with a 1 / 2.5 chip, the monitoring view field is wider, and a traditional DMS lens is small in target surface and only can be matched with a 1 / 3 chip, and the angle is small; the structure adopts a 2G + 2P structural design, and the product cost is reduced by using a design scheme with high cost performance; the design pixel of the lens reaches 300W, so that the imaging picture quality of the lens is greatly improved; athermalization design is adopted, heat temperature excursion compensation is achieved, the working temperature can range from-40 DEG C to 95 DEG C, and it is guaranteed that the product is applied to complex temperature scenes.

This application discloses an optical lens, a camera module, and an electronic device that can meet the requirements of miniaturization and high imaging quality, and can stably image under complex lighting conditions. The optical lens has six refractive lenses, which are arranged sequentially from the object side to the image side along the optical axis: the first lens has negative refractive power, and its object side is concave near the optical axis, and its image side is concave near the optical axis; the second lens has positive refractive power, and its object side is convex near the optical axis, and its image side is convex near the optical axis; the third lens has positive refractive power, and its object side is convex near the optical axis; the fourth lens has positive refractive power, and its object side is convex near the optical axis, and its image side is convex near the optical axis; the fifth lens has negative refractive power, and its object side is concave near the optical axis; the sixth lens has negative refractive power, and its image side is concave near the optical axis; the optical lens satisfies the following relationship: 30°≤FOV≤40°, 1≤CT4 / CT5≤1.4.

The present invention relates to the field of radar technology, and discloses a waveform optimization algorithm for synthetic aperture radar high squint imaging, including designing waveform parameters; using adaptive nonlinear frequency modulation waveform design to dynamically compensate for Doppler effect; combining wavelet transform and time-frequency adaptive window function to analyze echo signals; dynamically adjusting waveform parameters based on fuzzy logic particle swarm optimization method; real-time correction of waveform parameters to adapt to environmental changes; automatically adjusting waveform parameters to optimize imaging effects based on feedback of echo signal quality; and verifying the performance of optimized waveforms in target imaging quality, resolution and signal-to-noise ratio through simulation and actual measurement. The waveform optimization algorithm of the present invention can provide higher quality and more stable images in high squint angle SAR imaging, while enhancing the system's adaptability to dynamic environments and targets.

The present application relates to the technical field of optical imaging, and more particularly to a multi-mode terahertz wave imaging system and imaging method, the system comprising a light source module, a mode conversion module, first and second power feedback modules, and a multi-mode imaging module; the mode conversion module is used to convert the light source emitted by the light source module into light sources of different modes, which are then emitted to the multi-mode imaging module for imaging; the first and second power feedback modules are respectively used to capture the light beam energy information of the light source module and the multi-mode imaging module. The method comprises: selecting a light source and an imaging light path; when the selected light source comprises a collimated emitted terahertz wave laser source, the first power feedback module is used to obtain the first power, the second power feedback module is used to obtain the second power, and then normalization is performed; and when the selected light source does not comprise a collimated emitted terahertz wave laser source, the second power feedback module is used to obtain the second power. The present application can achieve wide spectrum coverage, can also perform multi-mode fast switching, and can achieve stable imaging.

The application provides a brake shoe imaging regulation method and system and a storage medium. The method comprises: acquiring a real-time speed of a train; inputting the real-time speed into a preset bogie dynamics model to predict an attitude angle of a target bogie corresponding to a target brake shoe under the real-time speed through the bogie dynamics model, the bogie dynamics model being constructed based on secondary suspension system parameters of a corresponding train model, wheel-rail contact geometric parameters and train dynamics equations; generating a space pose adjustment instruction for an imaging holder based on the attitude angle, the space pose adjustment instruction being used to drive the imaging holder to adjust an optical axis direction to compensate for an imaging plane deflection of the target brake shoe caused by a bogie attitude change; controlling the imaging holder to move according to the space pose adjustment instruction, and controlling a high-speed imaging device on the imaging holder to image the target brake shoe in response to the imaging holder moving to a target pose. The application realizes stable and clear imaging of the brake shoe in a high dynamic scene.

The application discloses a detachable electronic endoscope based on a Type-C interface and belongs to the technical field of medical minimally invasive endoscopes. The endoscope comprises a handle and a mirror rod which are detachably connected, further comprises a fixing cover, a connecting cover, a transmission line, a rubber I-shaped sleeve, a rubber sealing ring, a transmission pin and a transmission plug, the mirror rod is a fully-sealed structure, an internal built-in circuit, a light guide beam, a control mainboard and an image sensor are integrated in the mirror rod, and a universal rod is arranged on the outer wall of the mirror rod. The single Type-C interface is used for simultaneously realizing mechanical butt joint fixing, wired power supply and image signal transmission, the handle and the mirror rod are designed to be detachable, the mirror rod can be independently disassembled and sterilized, and the handle only needs to be regularly cleaned, so that the equipment turnover efficiency is effectively improved, and the use cost is reduced; the equipment adopts electronic imaging, the picture is clear and stable, there is no light path deviation, wired transmission is anti-interference and delay-free, the structure is simple, the failure rate is low, and the equipment is suitable for various clinical minimally invasive surgery imaging scenes.

The present invention provides a small distortion monitoring optical lens, which has a small field of view and high detail resolution capability, and the lens is short and lightweight, has small distortion, stable environmental adaptability, and its ghost image can be effectively controlled, meeting the imaging quality requirements of the monitoring lens. It includes a first lens, a second lens, a third lens, and a fourth lens in sequence from the object side to the image side along the optical axis, characterized in that: the first lens has positive focal power, and its object side is convex; the second lens has negative focal power, and its object side is concave; the third lens has positive focal power, and its image side is convex; the object side of the fourth lens is convex; and a color filter, a protective glass, and an IMA are arranged in sequence behind the image side of the fourth lens.

The utility model provides a double-ear type endoscope protective sleeve which comprises a soft sleeve used for wrapping the outer side of an endoscope. The opening connector comprises a first connector and a clamping connector, the first connector is connected to one end of the soft sleeve in a sleeving mode, the clamping connector is used for tightly holding the endoscope, protruding blocks are arranged on the two sides of the clamping connector, a clamping buckle groove and a clamping buckle strip which are concave outwards are arranged on the inner side of the clamping connector, the clamping buckle strip is arranged at one end of the clamping buckle groove, and the clamping buckle groove and the clamping buckle strip are matched with protrusions on the endoscope; an opening is formed in one side of the perspective lens end, the perspective lens end comprises a second connector and a lens sleeve, the second connector is connected to the end, away from the opening connector, of the soft sleeve in a sleeving mode, the lens sleeve is matched with an endoscope lens, and the lens sleeve is an inclined plane lens sleeve or a horizontal lens sleeve; by means of the technical scheme, the problems that in the prior art, an endoscope protection sleeve is suitable for a flat-bottom endoscope lens and is prone to displacement in the using process, and therefore the perspective image effect is affected are solved.

The application discloses a flying point scanning control method and device, and belongs to the technical field of X-ray scanning imaging. The method is realized based on a flying focal point X-ray source and a static constraint device, and comprises the following steps: acquiring scanning control parameters which are independently set for multiple scanning positions, wherein the scanning control parameters comprise scanning time lengths corresponding to the scanning positions, and different scanning positions can be set as different values; and controlling a focal point switching process of the flying focal point X-ray source according to the scanning control parameters to perform flying point scanning. The application is based on pre-identification of a scanning area, different areas adopt different scanning modes, empty areas can be directly skipped, and key areas are strengthened for scanning. The application reduces a radiation dose, improves scanning efficiency, and improves imaging quality of key areas. However, the existing feedback type scheme cannot distinguish empty areas and metal areas (scattering signals are also weak), and is prone to misjudgment and resource waste.