22results about How to "Large viewing angle" patented technology

The cooking equipment comprises a shell, a cooking body, an illumination assembly and a camera shooting piece, the cooking body is arranged in the shell, a heat dissipation air channel is arranged between the cooking body and the shell, at least part of the heat dissipation air channel is located at the top of the cooking body, and the camera shooting piece is arranged on the cooking body. A cooking cavity is defined in the cooking main body; the camera part is arranged on the top wall of the cooking main body, at least part of the camera part is located in the heat dissipation air duct, and the camera part is suitable for shooting the cooking cavity; the plurality of lighting assemblies are arranged on the top wall of the cooking main body so as to be located on the two sides of the camera part respectively, and at least parts of the lighting assemblies are located in the heat dissipation air channel and suitable for irradiating light towards the interior of the cooking cavity. Therefore, the lighting effect of the lighting assembly can be improved, the shooting visual angle of the camera part is wider, dazzle light can be prevented, the imaging effect is improved, and the working reliability of the lighting assembly and the camera part can be guaranteed.

This invention discloses an image display method, apparatus, vehicle-mounted display screen, and device, relating to the field of display technology. The method includes: acquiring user interaction commands generated on the vehicle-mounted display screen; generating display information for each first pixel based on the interaction commands; parsing the display information to obtain projection parameters for each projection beam; projecting the corresponding projection beam onto the vehicle-mounted display screen according to the projection parameters to obtain each second pixel; and forming an interactive interface based on all the second pixels. The vehicle-mounted display screen includes a hemispherical or super-hemispherical display carrier, a touch electrode layer covering the outer surface of the display carrier, and a diffraction film layer covering the inner surface of the display carrier. User interaction commands are obtained based on the touch electrode layer, and the diffraction film layer is used to diffract the projection beam to form second pixels. The interactive interface display method of this invention can present the user in a more intuitive, vivid, and private way.

A stereoscopic image display device according to an exemplary embodiment of the present disclosure includes a substrate divided into a plurality of sub-pixels each including a light emitting region, a light emitting diode disposed in the light emitting region of the substrate, a color filter disposed above the light emitting diode and overlapping the light emitting region, an optical member disposed above the color filter and including a plurality of high-refractive layers and a plurality of low-refractive layers, an upper side of each of the high-refractive layers being longer than a lower side, the plurality of low-refractive layers being disposed between the high-refractive layers, and an optical lens disposed above the optical member. A wider viewing angle is ensured while maintaining the same resolution to improve the quality of an image in which a user recognizes three dimensions.

The invention relates to a tensile color-changing film and a luminescent device and a preparation method thereof, and belongs to the field of luminescent materials and devices. Various luminescent materials with different forbidden bandwidths are made into a mixed component film, effective fluorescence resonance energy transfer (FRET) is allowed by the distance among the various luminescent materials, and the efficiency of the FRET process among the luminescent materials in the film can be changed by stretching when the luminescent materials are deposited on a stretchable flexible substrate, so that the dynamic emission spectrum of the film is changed, and the luminescence efficiency of the film is improved. And the stretching discoloring effect is achieved. When the stretching color-changing film is used as a light-emitting layer of the light-emitting device and a stretchable flexible material is used as a substrate of the light-emitting device, the dynamic electro-emission spectrum of the device can be changed through stretching. The tensile color-changing film disclosed by the invention is simple in structure, wide in applicable material system range and good in compatibility with existing various solution process film manufacturing equipment. The light-emitting device based on the stretching color-changing film is compatible with an existing device structure and process, and the production limitation is small.

The invention discloses a real-time imaging dynamic navigation system for a breast tumor interventional operation, which comprises an acousto-optic scanning device, a Redis client, a Redis server, a database, a modeling platform, a Three.js dynamic driving engine and a display terminal, and is characterized in that the acousto-optic scanning device is arranged above a breast tumor and performs scanning and data acquisition in a non-contact manner during the operation; the Redis client, the Redis server and the database respectively acquire, distribute and store the acquired data, and the modeling platform performs model construction on the received data. A Three.js dynamic driving engine composed of a breast tumor data input end, an initial data driving unit, an incremental data driving unit, a rendering unit and a dynamic image output end carries out data processing on the model in a data driving mode. According to the dynamic navigation system, real-time data acquisition, transmission and data processing are realized, the generated navigation image is visual and dynamic, high-quality image guidance is provided for an operation, and the success rate and accuracy of the operation are improved.

This application discloses an optical lens, an optical module, and an electronic device. The optical lens of this application sequentially includes, from an object side to an image side along an optical axis: a first lens with a negative bending force, where an object side surface of the first lens is convex, and an image side surface of the first lens is concave; a second lens with a positive bending force, where an object side surface of the second lens is convex, and an image side surface of the second lens is concave; a third lens with a positive bending force, where an object side surface of the third lens is convex, and an image side surface of the third lens is concave; a fourth lens with a positive bending force and biconvex surfaces; a fifth lens with a negative bending force and biconcave surfaces; a sixth lens with a positive bending force, where an object side surface of the sixth lens is concave, and an image side surface of the sixth lens is convex; and a seventh lens with a negative bending force, where an object side surface of the seventh lens includes a first bending portion and a second bending portion which are connected to form a convex surface, and an image side surface of the seventh lens includes a third bending portion and a fourth bending portion which are connected to form a concave surface.

The utility model relates to the technical field of laryngeal mask equipment, and discloses a medical visible laryngeal mask which comprises a mask body and a camera, the bottom end of the inner wall of the mask body is connected with an installation block in a sliding mode, a connecting assembly is arranged between the camera and the installation block, and an adjusting mechanism is arranged between the installation block and the mask body. The adjusting mechanism comprises a motor and a gear, an adjusting groove is formed in the bottom end of the inner wall of the cover body, the gear is arranged in the adjusting groove, a machine groove is formed in the inner wall of the adjusting groove, and the motor is fixedly installed on the inner wall of the machine groove. The medical staff can observe the insertion position more clearly, the operation accuracy is guaranteed, and the problems that in the prior art, the installation position of the camera is fixed, the observation angle of the camera is difficult to adjust, large observation dead angles possibly exist, normal operation of the medical staff is affected, and the operation accuracy is affected are solved.

The invention relates to an outside-vehicle image auxiliary driving method, device and equipment, a medium and a forklift, and the method comprises the steps that current image data collected by all cameras are received, and the current image data collected by different cameras are image data collected from different angles outside a vehicle owner; splicing the current image data to obtain a panoramic image outside the vehicle owner; and sending the panoramic image to a visual display, so that the visual display provides the panoramic image for a driver in the vehicle owner. According to the method, the driving operation of the driver is assisted through the panoramic image outside the vehicle, the problem that the driver has a view blind area outside the vehicle is greatly solved, a wider view angle is provided, the driver can conveniently observe surrounding conditions in real time, and the possibility of collision in the driving process is reduced.

The invention discloses a full-angle sealed image view on-line monitoring device, and relates to the technical field of image transmission monitoring. The full-angle camera shooting device comprises a full-angle camera shooting unit, a mounting arm and a control box, the full-angle camera shooting unit comprises a sealing ball cover, a universal camera and a sealing base, the sealing base and the sealing ball cover are bolted and fixed to form a sealing structure, and the universal camera is arranged in the sealing ball cover and is in sliding fit with the sealing ball cover. Monitoring equipment in the prior art is improved, the universal camera is arranged in the sealing ball cover, meanwhile, the sealing ball cover and the sealing base are arranged to be of a sealing structure, the monitoring equipment can be prevented from being affected by environmental factors during working, and the dustproof and waterproof effects are specifically embodied; wherein the camera adjusting mechanism is arranged in the sealing ball cover, so that the adjusting transmission mechanism can be prevented from being exposed outside the equipment, all components in the equipment are further protected from being damaged by environmental factors, and the service life of the equipment is prolonged.

The present application relates to the technical field of optical equipment, and provides a double-screen optical device, which comprises a first image source, a second image source, a first light guide component, a second light guide component, a reflection imaging unit and an observation area for receiving image light by an observer's eye; the first image light is sequentially guided by the first light guide component, is incident to a first reflection imaging area of the reflection imaging unit, is reflected by the first reflection imaging area, enters the observation area to form a first field of view image; the second image light is sequentially guided by the second light guide component, is incident to a second reflection imaging area of the reflection imaging unit, is reflected by the second reflection imaging area, enters the observation area to form a second field of view image; and the first field of view image and the second field of view image have at least partially different field of view coverage ranges in the observer's field of view.

The invention provides an ultra-short-focus projection lens and projection equipment, and belongs to the technical field of optical imaging. The ultra-short-focus projection lens comprises a first lens with positive focal power, a second lens with positive focal power, a third lens with negative focal power, a fourth lens with positive focal power, a fifth lens with negative focal power, a sixth lens with positive focal power, a seventh lens with negative focal power, an eighth lens with positive focal power and a ninth lens with negative focal power. The system comprises a tenth lens with negative focal power, an eleventh lens with positive focal power, a twelfth lens with positive focal power, a thirteenth lens with positive focal power, a fourteenth lens with negative focal power, a fifteenth lens with negative focal power, a sixteenth lens with negative focal power and a concave reflector, therefore, the total optical length of the ultra-short-focus projection lens is controlled within 300mm, and the definition reaches 8K and above. According to the scheme, the ultra-short-focus projection lens which is small in size, high in resolution and good in athermalization is realized.

The invention provides a micro-cavity OLED display and a preparation method thereof, the micro-cavity OLED display comprises a micro-cavity OLED display assembly and a lens layer covering a light emitting surface of the micro-cavity OLED display assembly, wedge-shaped micro lenses are arranged on the lens layer in an array, and each wedge-shaped micro lens covers at least one pixel unit. The design aims to solve the problem that a strong micro-cavity OLED display is not matched with CRA due to a small visual angle in optical machine application. Compared with a traditional spherical lens, the wedge-shaped lens is adopted, so that remarkable beneficial effects are achieved. Due to the unique design, the brightness of the display changes slightly along with the visual angle, the problem of visual angle limitation is effectively relieved, it means that the display can keep a high brightness level in a wider visual angle range, and therefore the display effect and user experience in optical machine application are improved. In addition, the wedge-shaped lens is also beneficial to reducing stray light, improving the lighting effect and avoiding brightness sacrifice.

A spherical display sound box relates to the field of intelligent products and comprises a base, a controller, a driver, a sound production module and an arc-shaped lamp panel module, the controller, the driver and the sound production module are all mounted on the base, and the controller is in communication connection with the driver and the sound production module at the same time; the driver is in transmission connection with the arc-shaped lamp panel module, and the driver is used for driving the arc-shaped lamp panel module to rotate relative to the base, so that the image of the arc-shaped lamp panel module is displayed in a spherical shape. According to the structural design of the sound box, the visual angle can be increased, the watching experience is improved, and the interactivity is higher.

The invention discloses a display panel and a display device. The display panel comprises a substrate; the pixel definition layer is arranged on one side of the substrate, and pixel openings are formed in the pixel definition layer; at least part of the light-emitting element is formed in the pixel opening, and the light-emitting element comprises a first electrode, a light-emitting functional layer and a second electrode which are sequentially stacked in the direction away from the substrate; the isolation structure is arranged on the side, away from the substrate, of the pixel definition layer, the isolation structure is provided with an isolation opening, and the isolation opening is communicated with the pixel opening; wherein the material of the second electrode comprises a transparent material. The display panel provided by the invention can improve the display quality.

The invention relates to the technical field of monitoring equipment, in particular to a 5G base station construction project monitoring system which comprises a base, a supporting frame, a sensor group, a camera, a moving seat, a waterproof cover and a gas cleaner, the supporting frame is fixedly connected with the base and located at the top of the base, the sensor group is arranged on one side of the supporting frame, the moving seat is rotationally arranged on the supporting frame, and the camera is arranged on the moving seat. The camera is arranged on the moving seat, the waterproof cover is arranged at the top of the camera, and the gas cleaner is arranged on one side of the camera and used for cleaning the camera through airflow. Dust on the surface of the camera can be conveniently cleaned, and the situation that the definition of the camera is reduced due to rainwater is avoided.

The utility model provides a fisheye 360-degree wide-angle high-definition 12 million-pixel vehicle-mounted lens, particularly relates to the technical field of camera lenses, and is used for solving the problems that most existing vehicle-mounted lenses have certain compromise in the aspects of high resolution and wide visual angle, part of lenses have relatively large distortion although having relatively good field angles, and the image quality is poor. Or the imaging quality is reduced under the night vision function and complex light. The lens comprises a lens shell, and a first lens element, a second lens element, a third lens element, a fourth lens element, a diaphragm, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element, a cover and a lens barrel which are arranged in the lens shell and are sequentially arranged from an object side to an image side. According to the utility model, the aberration in an optical system is effectively corrected, the lens requirement of a 2K pixel level can be realized, and the special application requirements of diversification of different scenes, clear effect, good night vision effect, less interference under complex light and the like of the lens are met.

This invention discloses a touch interaction method, device, vehicle-mounted display screen, and equipment, relating to the field of display technology. The method includes: acquiring touch events generated by a user on the vehicle-mounted display screen and determining the longitude and latitude coordinates corresponding to the touch events on the display screen; the vehicle-mounted display screen includes a hemispherical or super-hemispherical display carrier, a touch electrode layer covering the outer surface of the display carrier, a plurality of driving electrodes and a plurality of sensing electrodes disposed on the outer surface of the touch electrode layer, the driving electrodes and sensing electrodes being perpendicular to each other, and the intersection of the driving electrodes and sensing electrodes forming a capacitive node of the vehicle-mounted display screen; determining the touch point corresponding to the touch event based on the longitude and latitude coordinates, and generating user interaction commands based on the touch point. This invention extends user interaction from a two-dimensional plane to a three-dimensional curved surface, improving the user's interactive experience.

The present invention discloses a multifunctional modular bracket that is convenient for wire management and maintenance, which belongs to the technical field of industrial computer installation, and includes a mobile base, a heat dissipation top base and a plurality of storage boxes; adjacent storage boxes are detachably connected to each other through a snap-fit ​​structure; a pull-out plate is provided inside the storage box, and a flip plate for loading the industrial computer is movably provided inside the pull-out plate; the flip plate can be pulled out and rotated inside the pull-out plate; a scissor bracket is provided inside the storage box, and a wire management mechanism is provided on the scissor bracket, and a wire fixing mechanism is provided at the inner bottom of the storage box. Through the above-mentioned method, in the present invention, the user can fix the heat dissipation top base, a plurality of storage boxes and the mobile base from top to bottom through the snap-fit ​​structure to form a whole; when the industrial computer is being repaired, the flip plate can be pulled out and rotated ninety degrees clockwise to display the front of the industrial computer to the operator, which is convenient for observation and has a large observation angle, and the pull-out structure of the flip plate has a small load, which is convenient for the operator to perform maintenance operations on the industrial computer.

The invention discloses a vehicle speed control method, a vehicle and a medium, and relates to the technical field of vehicle control, the method is applied to a road surface intelligent identification system of the vehicle, and the method comprises the following steps: obtaining a road surface satellite picture sent by a satellite for a road in front of the vehicle; recognizing the road surface quality information of the front road according to the road surface satellite picture; and carrying out auxiliary driving on the vehicle according to the road surface quality information. By adopting the method, the road surface recognition precision of the front road can be improved, so that the vehicle can be better assisted in driving, and the driving safety is improved.

The application discloses a fisheye lens system, which comprises, in sequence from an object side to an imaging surface along an optical axis, a first lens L1 with negative optical power and a spherical surface, a second lens L2 with negative optical power and a non-spherical surface, a third lens L3 with positive optical power and a spherical surface, a stop STO, a fourth lens L4 with positive optical power and a spherical surface, wherein the object side surface of the fourth lens L4 is a convex surface, and the image side surface of the fourth lens L4 is a concave surface, a fifth lens L5 with negative optical power and a spherical surface, wherein the object side surface and the image side surface of the fifth lens L5 are both convex surfaces, a sixth lens L6 with negative optical power and a non-spherical surface, wherein the object side surface of the sixth lens L6 is a plane, and the image side surface of the sixth lens L6 is a concave surface, a seventh lens L7 with positive optical power and a non-spherical surface, wherein the object side surface and the image side surface of the seventh lens L7 are both convex surfaces, and TTL is less than or equal to 35.0 mm, wherein TTL is the distance between the object side surface of the first lens L1 and the imaging surface.

The application relates to the field of optics, in particular to a zoom projection lens and an imaging device. The zoom projection lens is characterized in that the zoom projection lens is sequentially composed of a focusing lens group with negative optical power, a first fixed lens group with negative optical power, a first variable magnification lens group with negative optical power, a second variable magnification lens group with positive optical power, a third variable magnification lens group with positive optical power, a fourth variable magnification lens group with positive optical power, a second fixed lens group with positive optical power and a light splitting prism from the object plane side to the image plane side. The zoom projection lens satisfies the following conditional expressions: ft / fw<2; Fno<1.9; FOVt>80 DEG. Through the above structure and parameter limitation, the zoom projection lens realizes a small magnification, a large aperture effect, an ultralarge field of view, a large range of view and increased user experience.