110 results about "Wide-angle lens" patented technology

The application discloses a two-axis holder, the connecting arm can rotate relative to the rotor end of the first motor to switch the holder between the storage state and the use state; the clamping part comprises a first clamping jaw and a second clamping jaw, when the holder is in the storage state, the clamping part faces the handheld part; when the holder is in the use state, the clamping part is located above the first motor, the connecting arm is inclined to the axis extension line of the first motor, so that the clamping part is located on the axis extension line of the first motor, the outer ring of the rotor end of the first motor and the connecting arm are provided with matched limiting structures to limit the relative rotation of the rotor end of the first motor and the connecting arm. The two-axis holder disclosed by the application can always balance the gravity center of the two-axis holder, a rotating mechanism is additionally arranged between the first motor and the connecting arm to meet the storage of the two-axis holder, the length after storage is only the length of the handheld part of the holder, and the problem of the motor blocking the wide-angle lens during shooting of the two-axis holder can be solved.

A method of designing a wide-angle optical system having at least one free-form optical surface without rotational symmetry to create a custom 2D object-image mapping. The method is based on iteratively adjusting the shape of the at least one free-form optical 2D surface to have the desired precise 2D object-image mapping, and then adjusting the surface of the optical element to meet other desired optical specifications. The iterative method is applied until the desired 2D object-image mapping and other desired optical specifications are achieved.

The embodiment of the invention relates to a target tracking method and system. The method comprises the following steps: acquiring a first image of a target object shot by a wide-angle lens; determining first position information of a target object in the first image; based on the first position information and a view position relation, whether a target object is located in the second view range or not is determined, a determination result is obtained, and the view position relation represents the position relation between the first view range and the second view range; under the condition that the determination result shows that the target object is located in the second visual field range, obtaining a second image of the target object shot by the telephoto lens; and performing target tracking on a target object based on the second image. Therefore, the accuracy of target tracking can be improved.

To simplify processing in imaging systems that use multiple wide-angle lens devices. [Solution] An imaging system comprising a first lens device and a second lens device, each having a half-angle of view exceeding 90° corresponding to the maximum image height when focused at infinity at the wide-angle end, and a first imaging device equipped with a first image sensor that receives the image formed by the first lens device, wherein the imaging areas of the first lens device and the second lens device overlap, and the first imaging device determines the imaging conditions of the first imaging device based on imaging information in the overlapping area.

The utility model provides a kind of monitoring adjustment switching device, first optical lens in first camera, second optical lens in second camera, third optical lens in third camera are all wide-angle lens, fourth optical lens in fourth camera is optical zoom lens, and the collection angle or collection mode of first optical lens, second optical lens, third optical lens, fourth optical lens is different;The lens switching control data output end of control unit is connected with the lens switching control data input end of switching unit, the image data output end of first camera, second camera, third camera, fourth camera is respectively connected with the image data input end of switching unit, the image data output end of switching unit is connected with the image data input end of control unit, can be flexibly switched between first camera, second camera, third camera, fourth camera, reduce monitoring use energy consumption cost.

[Problem] To provide a vision assistance device that does not cause misalignment between a virtual image projected onto a display surface and a real image viewed through the display surface. [Solution] A vision assistance device 100 is configured to project an image captured by a wide-angle camera device 108 onto a right display surface 106R or a left display surface 106L. When a wearer WP wears the vision assistance device 100 on the head HD and faces forward, a camera axis CCL of a wide-angle lens 172 is horizontally disposed. A camera center CC is disposed on a horizontal center line HCL and a vertical center line VCL of the left display surface 106L and the right display surface 106R. Consequently, no misalignment is produced between virtual images projected onto the left display surface 106L and the right display surface 106R and real images viewed therethrough.

The embodiment of the application discloses an image acquisition device, a terminal, a method and a storage medium for a video conference, and relates to the technical field of camera terminals. The device comprises: a wide-angle lens for acquiring a first field of view area; a plurality of telephoto lenses symmetrically arranged with respect to the center of the wide-angle lens, the optical axes of the plurality of telephoto lenses intersecting with the optical axis of the wide-angle lens at the same virtual optical center, and the absolute value of the difference between the second field of view area obtained by merging the field of view areas of the plurality of telephoto lenses and the first field of view area being less than a field of view area threshold. The image acquisition device of the embodiment of the application combines the wide-angle lens and the telephoto lens, can improve the field of view coverage rate, can also fuse the telephoto lens and the wide-angle lens to perform lossless magnification on the picture, avoids image distortion caused by different focusing information of different lenses based on the setting of the virtual optical center and the field of view area, and can fuse the telephoto lens to perform magnification close-up in most of the field of view area of the wide-angle lens.

The utility model relates to the technical field of optical imaging, and especially relates to a wide-angle lens equipped with a protection structure. The wide-angle lens equipped with the protection structure comprises a lens barrel, a lens, a gland, a sliding frame, a buffer ring and a buffer spring, the left end of the lens barrel is clamped with the lens, the left side of the outside of the lens barrel is provided with external threads distributed in the circumferential direction, the inner side face of the gland is correspondingly provided with matched circumferential internal threads, the external threads and the internal threads are connected through a thread pair, and the sliding frame is clamped with the buffer ring. A sliding frame is slidably connected to the position, close to the lens, of the left end in the lens barrel, and a plurality of buffer springs distributed in the circumferential direction are connected between the sliding frame and the lens barrel. The damping structure composed of the sliding frame, the buffer ring and the buffer spring is arranged in the lens barrel, when the lens is subjected to external impact, the buffer ring drives the sliding frame to compress the buffer spring, and the impact force is absorbed by using the elastic deformation of the spring, so that the risk of damage of the lens due to impact can be effectively reduced, and the reliability and the service life of the wide-angle lens are remarkably improved.

The utility model discloses a half-format wide-angle lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens and an eleventh lens which are sequentially arranged from an object space to an image space, the object side surfaces and the image side surfaces of the fifth lens, the sixth lens, the seventh lens and the tenth lens are convex surfaces, the object side surfaces and the image side surfaces of the fourth lens, the eighth lens and the ninth lens are concave surfaces, the object side surfaces of the first lens, the second lens and the third lens are convex surfaces, and the image side surfaces of the first lens, the second lens and the third lens are concave surfaces. The eleventh lens element has a concave object-side surface and a convex image-side surface. According to the half-frame wide-angle lens, only 11 lenses are adopted, the effective focal length of the half-frame wide-angle lens is 12mm and the relative aperture of the half-frame wide-angle lens is 2 through the cooperation and mutual cooperation of the 11 lenses, and the cost is reduced under the condition that an ultra-large wide angle and better imaging quality are ensured.

An optical system of the wide-angle lens is composed of a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens and a sixth lens, the first lens is a meniscus concave negative lens, the second lens is a meniscus concave negative lens, the third lens is a biconvex positive lens, and the sixth lens is a biconvex positive lens. The fourth lens is a biconvex positive lens, the fifth lens is a meniscus concave negative lens, the sixth lens is a biconvex positive lens, the fourth lens and the fifth lens form a bonding lens, the first lens and the third lens are glass spherical lenses, and the second lens, the fourth lens, the fifth lens and the sixth lens are all plastic aspheric lenses. The two glass spherical lenses are matched with the four plastic aspheric lenses for use, compared with an all-glass system, the system mass is lighter, compared with an all-plastic system, the optical performance stability is higher, and meanwhile the cost is reduced while the system adapts to the environment; and the imaging angle of an object is greater than 130 degrees.

An optical lens (10), a camera module (200) and an electronic device (1000). The optical lens (10) comprises a first lens group (G1), a second lens group (G2) and a third lens group (G3) which are arranged from an object side to an image side. The first lens group (G1) comprises at least one lens having a negative focal power. The second lens group (G2) comprises at least two lenses, and at least one lens of the second lens group (G2) has a negative focal power. The third lens group (G3) comprises at least one lens having a negative focal power. The first lens group (G1) and / or the second lens group (G2) are / is a zoom lens group. The optical lens (10) satisfies 0.1 ≤ fw / ImgH ≤ 1.1, where fw is the focal length of the optical lens (10) at a wide-angle end, and ImgH is half of a diagonal length of an effective pixel area on an imaging surface of the optical lens (10). The optical lens (10) can realize integration of a main camera lens and a wide-angle lens, and has a good imaging quality at both a main camera end and the wide-angle end.

A stovetop camera application device is disclosed, which is a stovetop Wi-Fi enabled camera system and corresponding software application. The stovetop camera application device comprises a heat-resistant camera component with a wide-angle lens that operates in a normal image mode or a heat camera mode. The camera component is installed above a stovetop hood or is wall mounted via magnets and angled brackets. The camera component includes sensors to detect methane gas or smoke. The corresponding software application has customizable features, such as alarms for flame detection, steam alerts, boiling notifications, and timers to enhance functionality and safety.

The invention discloses a wide-angle lens for a motion camera, which sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens from an object side to an image side along an optical axis, and is characterized in that the first lens has negative focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the second lens has negative focal power, the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the third lens has positive focal power, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a concave surface; the fourth lens has positive focal power, the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a convex surface; the fifth lens has positive focal power, the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a convex surface; the sixth lens has negative focal power, the object side surface of the sixth lens is a concave surface, and the image side surface of the sixth lens is a concave surface; the seventh lens has positive focal power, the object side surface of the seventh lens is a convex surface, and the image side surface of the seventh lens is a convex surface; the eighth lens has negative focal power, the object side face of the eighth lens is a concave face, and the image side face of the eighth lens is a concave face. The wide-angle lens is used for solving at least one problem that a motion camera is too long in total length, too heavy in weight, high in cost, too small in aperture, too small in target surface, too small in field angle, large in field edge resolution, too fast in illumination reduction and the like.

The utility model discloses an adjustable light-emitting diode (LED) fish gathering lamp with a wide-angle lighting and forced air cooling structure, which comprises a lamp body shell, a lamp arranged in the lamp body shell, a heat dissipation fan, a wide-angle lens arranged at the bottom of the lamp body shell and used for increasing the lighting range, and a light diffusion plate arranged at the bottom of the lamp body shell. A heat dissipation air channel used for enhancing the heat dissipation effect is arranged in the lamp body shell, an adjustable installation part is arranged on one side of the lamp body shell, the illumination intensity and the illumination range are optimized, 165-degree wide-angle illumination is adopted to cover a fishing boat operation area, and the illumination uniformity is greatly improved. And a heat dissipation air channel is optimized, and forced air cooling is adopted, so that the junction temperature of the LED is greatly reduced, and light attenuation is delayed. The fishing boat has the functions of being adjustable in installation and convenient to adjust, adjustment at any time in daily use is facilitated, and various installation modes of the installation part are suitable for various fishing boat scenes.

The invention provides a projection device, a wide-angle lens thereof and a wide-angle projection method. The wide-angle lens is provided with a collimating lens group, a diffractive optical element and an adjusting lens group. Wherein the collimating lens group, the diffractive optical element and the adjusting lens group are sequentially arranged from the first side of the wide-angle lens to the second side of the wide-angle lens. Therefore, when output light with a large-angle projection range is provided, the overall optical distortion can be controlled within an effective specification.

The invention relates to the technical field of optical lenses, in particular to an athermalized ultra-wide-angle lens, which comprises a lens barrel, and a first lens group, a diaphragm and a second lens group which are coaxially arranged in the lens barrel in sequence, from the object side to the image side, the first lens group comprises a first lens, a second lens, a third lens and a fourth lens which are arranged in sequence, and the second lens group comprises a fifth lens, a sixth lens and a seventh lens which are arranged in sequence. Wherein the first lens is a fisheye-type meniscus negative lens, and the concave surface of the first lens faces the image space; the second lens and the third lens are meniscus negative lenses, and the concave surfaces of the second lens and the third lens face the image space. The fourth lens is a positive lens; the fifth lens, the sixth lens and the seventh lens are all positive lenses. The field angle of the lens provided by the invention reaches 185 degrees, and all objects right ahead can be shot comprehensively without dead angles; the aperture value can reach 1.4, and rapid imaging can be realized; and the lens can adapt to an environment with a temperature range of-40 DEG C to 80 DEG C, and covers most of outdoor temperature environments, so that the adaptability of the lens to the environment is effectively improved.

A wide-angle lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens. The first lens is with negative refractive power and includes a concave surface facing an image side. The second lens is with refractive power. The third lens is with refractive power. The fourth lens is with positive refractive power and includes a convex surface facing the image side. The fifth lens is with positive refractive power. The sixth lens is with refractive power. The seventh lens is with refractive power. The eighth lens is with positive refractive power and includes a convex surface facing an object side. The first, second, third, fourth, fifth, sixth, seventh, and eighth lenses are arranged in order from the object side to the image side along an optical axis.

The high-definition monitoring camera device comprises a mounting rack and a camera connected to the mounting rack, one end of the mounting rack is connected with a mounting hole, the lower end of the mounting rack is rotatably connected with a monitoring ball far away from the mounting hole, and the camera is mounted at the lower end of the monitoring ball; a connecting plate is arranged at the lower end of the monitoring ball in an outward protruding mode, the camera is rotationally connected with the connecting plate, and a wide-angle lens is further connected into the monitoring ball. The monitoring ball is connected with a first auxiliary imaging assembly in cooperation with the wide-angle lens, and the camera is further connected with a second auxiliary imaging assembly around the lens of the camera. Compared with the prior art, the high-definition monitoring camera device provided by the utility model has the advantages of convenience in application and good monitoring effect.

This application provides an ultra-wide-angle lens and an electronic device. The ultra-wide-angle lens includes a first lens, a second lens, a third lens, and a fourth lens arranged sequentially from the object side to the image side along the optical path; the first lens is a positive refractive power lens; the second lens is a negative refractive power lens; the third lens is a positive refractive power lens; and the fourth lens is a negative refractive power lens. The four lenses, through adjustments to their respective structural parameters and / or optical parameters, enable the lens to satisfy the following conditional relationships: TTL ≤ 2.9 mm; FOV ≥ 108°; where TTL is the total optical length; and FOV is the field of view.

The application discloses an ultra-wide-angle lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens arranged in sequence along an optical axis from an object side to an image side; in the direction from the object side to the image side, the first lens is a convex-concave lens with negative focal power, the second lens is a concave-concave lens with negative focal power, the third lens is a convex-convex lens with positive focal power, the fourth lens is a concave-convex lens with negative focal power, the fifth lens is a convex-convex lens with positive focal power, the sixth lens is a concave-concave lens with negative focal power, the seventh lens is a convex-convex lens with positive focal power, and the eighth lens is a concave-concave lens with negative focal power. Thus, the field angle of the ultra-wide-angle lens is 200°, the maximum can match a 1 / 2.3" target surface sensor chip, and the ultra-wide-angle lens has the characteristics of a large field angle, a short total length and low cost.

The present application relates to the technical field of spacecraft on-orbit health monitoring, and discloses a cross-modal data fusion method and system for spacecraft appearance damage detection, comprising: acquiring two-dimensional image data and three-dimensional point cloud data of the damaged area of the outer surface of the spacecraft; performing wide-angle lens distortion correction on the two-dimensional image data to obtain preprocessed two-dimensional image data, and performing denoising filtering processing on the three-dimensional point cloud data to obtain preprocessed three-dimensional point cloud data; based on the extrinsic matrix between the camera and the laser radar, constructing and according to the mapping relationship between the pixels and the point clouds, performing cross-modal alignment and splicing on the preprocessed two-dimensional image data and the preprocessed three-dimensional point cloud data to obtain cross-modal fusion data for spacecraft appearance damage detection. The present application can effectively overcome the limitations of traditional single data source in spacecraft appearance damage detection, and provide high-reliability multi-dimensional data support for accurate detection and state evaluation of the outer surface damage of the spacecraft.

This invention relates to the field of commercial vehicle rearview mirror technology, specifically to a follow-up rearview mirror device with adaptive lens adjustment, including a rearview mirror lens and a wide-angle lens. A radar system and a camera are mounted on the rearview mirror lens. The rearview mirror lens and the wide-angle lens are mounted on a mirror arm via an actuator motor. The radar system is electrically connected to a vehicle control unit. The vehicle control unit receives information from steering sensors and reversing sensors, and simultaneously receives the distance between the rearview mirror and the trailer tail detected by the radar system. The vehicle control unit processes the received information using preset vehicle parameters and transmits it to the rearview mirror control module via a CAN bus. The rearview mirror control module drives the actuator motor to adjust the position of the rearview mirror lens according to the input signal, achieving a follow-up field of view function. By installing a position sensor at the seat, the vehicle can automatically adjust the rearview mirror mirror position according to the seat position, improving adjustment efficiency.

The application discloses an ultra-wide-angle lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens arranged in sequence along an optical axis from an object plane to an image plane, wherein the first lens has a negative focal length, the second lens has a negative focal length, the third lens has a positive focal length, the fourth lens has a positive focal length, the fifth lens has a positive focal length, the sixth lens has a positive focal length, the seventh lens has a negative focal length, the eighth lens has a positive focal length, and the ninth lens has a negative focal length. The ultra-wide-angle lens provided by the embodiment of the application has a field of view of 200 degrees, a maximum aperture number of 1.8 and a maximum imaging circle diameter of 7 mm, and is a high-pixel ultra-wide-angle lens. In addition, the ultra-wide-angle lens is composed of only nine lenses, has a compact structure, a small volume and a small total optical length, and is low in cost and weight.

The invention belongs to the technical field of automatic dense storage, and particularly relates to application of obstacle recognition based on multi-sensor fusion in a pallet four-way vehicle, and the specific application steps are as follows: TOF (Time of Flight) laser radars are mounted in the running directions of the four sides of the four-way vehicle, a 120-degree sector scanning mode is adopted, the vertical detection angle covers 0-60 degrees, and the TOF laser radars are mounted in the running directions of the four sides of the four-way vehicle; acquiring three-dimensional distance information of obstacles in the surrounding environment; a visual sensor is carried below the same side of the laser radar, a wide-angle lens is arranged, a color or gray level image is collected, and a target with texture features is emphasized to be recognized; through complementary fusion of vision and laser, the limitation of a single sensor in a complex environment is solved, the recognition accuracy of multiple types of obstacles is greatly improved, and the obstacle recognition robustness is improved; through real-time positioning and track interference analysis of the position encoder, the four-way vehicle can respond to the obstacle risk within 0.5 s, collision with personnel, equipment or protruding goods in a narrow roadway is avoided, and operation safety is guaranteed.

The utility model provides a day-night confocal optical system and a camera module applying the same, mainly comprising seven lenses, the object plane side of the first lens is a convex surface, the image plane side of the first lens is a concave surface, the focal power of the first lens is negative, the object plane side of the second lens is a concave surface, the image plane side of the second lens is a convex surface, the focal power of the second lens is negative, the object plane side of the third lens is a convex surface or a concave surface, and the object plane side of the third lens is a convex surface or a concave surface. The object plane side and the image plane side of the fourth lens are both convex surfaces and have positive focal power, the fifth lens has focal power, the sixth lens has focal power, the object plane side of the seventh lens is convex, the image plane side of the seventh lens is concave, the focal power of the seventh lens is positive, the number of the lenses is reasonable, the structure is simple, and the lens can be widely applied to the field of optical imaging. By reasonably distributing the focal power of the lenses, optimizing the aberration of the lens and improving the resolution performance, the wide-angle wide-angle lens has the advantages of large wide angle, large aperture, light weight and excellent resolution, so that the miniaturized wide-angle lens has higher competitiveness in the market.

The present application relates to a skin inspection device for identifying abnormalities. The device comprises: a transparent panel providing an inspection area; an array of thermochromic liquid crystal structures disposed on the transparent panel, the thermochromic liquid crystal structures being capable of changing colour in response to a change in temperature; one or more image capture devices having a wide angle lens for capturing images of the thermochromic liquid crystal structures and a skin area of a subject located in the inspection area; at least some of the thermochromic liquid crystal structures having a twisted shape, while others of the thermochromic liquid crystal structures have a non-twisted shape; the thermochromic liquid crystal structures having a twisted shape and the thermochromic liquid crystal structures having a non-twisted shape defining a pattern such that: when viewed through the wide angle lens, both the thermochromic liquid crystal structures having a twisted shape and the thermochromic liquid crystal structures having a non-twisted shape appear non-twisted.

An encoder capable of properly handling an image to be encoded or decoded includes processing circuitry and memory connected to the processing circuitry. Using the memory, the processing circuitry: obtains parameters including at least one of (i) one or more parameters related to a first process for correcting distortion in an image captured with a wide angle lens and (ii) one or more parameters related to a second process for stitching a plurality of images; generates an encoded image by encoding a current image to be processed that is based on the image or the plurality of images; and writes the parameters into a bitstream including the encoded image.

The utility model provides a wide-angle lens of a motion camera. A first lens (L1), a second lens (L2), a third lens (L3), a diaphragm (STO), a fourth lens (L4), a fifth lens (L5), a sixth lens (L6), a seventh lens (L7) and protective glass (CG) are sequentially arranged from an object plane to an image plane. The seven lenses are all aspheric surfaces, and six glass lenses and one plastic lens are arranged, so that the high temperature resistance is good; the effective clear apertures of the first lens (L1) and the seventh lens (L7) are large, so that the field angle can be increased; a large aperture, namely a small F number, is provided; thickness and air space of all the lenses are small, thereby facilitating control of total length.

The application discloses a small-distortion large-view-field high-definition lens based on Q- TYPE aspheric surface, which comprises first lens elements, second lens elements,..., tenth lens elements and an aperture diaphragm arranged in sequence from left to right, the aperture diaphragm is arranged between the fifth lens element and the sixth lens element, two aspheric surfaces are adopted in total, and the front surface of the first lens element and the front surface of the tenth lens element are both Q- type aspheric surfaces. The application applies the novel Q- type aspheric surface to the design of the wide-angle lens, reduces the weight and processing cost of the lens, realizes small distortion, a large aperture and high pixels, strictly limits the structural parameters of the lens elements, finally realizes the size requirements of a long back intercept, a short total length of the system and a small first surface lens, so as to meet the assembly requirements, improves the processing and detection precision to a certain extent due to the excellent characteristics of the Q- type, and improves the optimization efficiency.

The utility model discloses a visual minimally invasive thrombolysis catheter system which comprises a catheter body and a tail end structure, the tail end structure is arranged at the front end of the catheter body, and the tail end structure comprises a medicine releasing body, an ultrasonic micro-vibration head and a miniature wide-angle lens; the ultrasonic micro-vibration head is of an annular structure, and the ultrasonic micro-vibration head of the annular structure is connected with an external ultrasonic generator through a wire. The miniature wide-angle lens is arranged at the front end of the ultrasonic micro-vibration head, the miniature wide-angle lens is connected with external display equipment through the optical fiber, and the wire and the optical fiber extend in a cavity in the catheter body; the drug release body is of an annular structure, and the ultrasonic micro-vibration head and the miniature wide-angle lens are located on the outer side of the front end of the drug release body of the annular structure. According to the utility model, the visualization of the thrombus position is realized, the accuracy of the drug release position is ensured, the thrombolysis efficiency is improved, the thrombolysis time is shortened, the complication risk is reduced, and the visualization of the drug thrombolysis effect can be realized.