59 results about "Projection screen" patented technology

1. Name of the product in this design: Curtain (TY-MB01). 2. Purpose of this design: A projection screen for displaying projected images. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design.

This application provides a multi-device screen sharing method, apparatus, storage medium, and electronic device. The method, applied in the field of computer technology, includes: acquiring a main projection screen sent by a master device and displaying the main projection screen on a screen; if a non-main projection screen sent by a non-master device is acquired, ending the display of the main projection screen and displaying the non-projection screen on the screen; if a reverse screen sharing command is received, recording the display screen on the screen and sending the display screen to the master device so that the master device displays the display screen. This method can avoid display errors such as picture-in-picture during the return of the main device's projection screen when a non-master device projects, and also avoids echo errors in multi-device projection, thereby improving the effect of multi-device screen sharing.

The application discloses a vehicle projection curtain device capable of freely hovering, which comprises a motor, a shaft coupling, a lead screw, a moving nut, a moving block, a connecting block, a sliding bearing, a first supporting arm, a second supporting arm, an upper fixed sliding groove, a lower following sliding groove, an electromagnet and a travel switch; the motor is used for driving the rotation of the lead screw, the rotation of the lead screw drives the horizontal movement of the moving block and the sliding bearing, the rotary motion output by the horizontally placed motor is converted into the horizontal motion of the sliding bearing, so as to drive the first supporting arm and the second supporting arm to realize the function of staggered opening, stretching and shrinking the curtain. The application has the advantages of small noise, stable motion and self-locking by using the lead screw transmission, the cross arm structure and the electromagnet, and can realize the free hovering of the curtain at any position without unstable phenomenon caused by the motion of the vehicle. The application provides a new reference scheme based on the existing vehicle projection curtain device, and has good use value and application development prospect.

The present application relates to the observable projectable circular rainbow enhancement technology based on the principle of triangular prism refraction, and provides a reusable circular rainbow enhancement method and device, wherein the device for realizing circular rainbow enhancement based on the principle of triangular prism comprises a gyroid tooth-shaped prism and a projection screen, the rotation axis of the gyroid tooth-shaped prism is perpendicular to the projection screen, the cross section of the gyroid tooth-shaped prism is two strings of triangles which are symmetrically distributed along the rotation axis and connected in sequence, the gyroid tooth-shaped prism is made of transparent material, the incident light is parallel to the rotation axis of the gyroid tooth-shaped prism, enters and penetrates the gyroid tooth-shaped prism from the connected bottom side, and then is vertically projected to the projection screen. The present application is mainly applied to the design and manufacturing occasions of teaching and display devices.

The utility model discloses a kind of projection screen automatic cleaning device, it is related to screen cleaning technical field, including fixed frame, rotating rod is installed in the fixed frame inner chamber upper end rear side, collecting wheel is installed outside the rotating rod, projection cloth is wound outside the collecting wheel, the movable long slot is set up in the fixed frame bottom end front side, and long plate is installed in the end of projection cloth far from collecting wheel and passes through movable long slot. The utility model can automatically clean the front side and the rear side of projection cloth during the use of projection cloth, and improve the friction between cleaning end and the outside of projection cloth during cleaning process, then improve the sufficiency when cleaning the outside of projection cloth, avoid the situation that there is a dead angle when cleaning projection cloth during cleaning process, cause abnormal situation in later use process.

This application relates to the field of projection display technology, and more particularly to a vehicle-mounted projection screen device and vehicle. The vehicle-mounted projection screen device includes a housing, a roller assembly, and a projection screen. The housing is installed inside the vehicle. The roller assembly includes a rotating shaft and a drive motor. The rotating shaft is rotatably disposed within the housing. The drive motor is disposed within the housing and connected to the rotating shaft. A first side of the projection screen is connected to the rotating shaft. When the drive motor drives the rotating shaft to rotate in a first direction, the projection screen can be rolled around the rotating shaft and stored inside the housing. When the drive motor drives the rotating shaft to rotate in a second direction, the projection screen can extend out of the housing and unfold. The first direction and the second direction are opposite. The projection screen includes a substrate layer and a Fresnel layer. The substrate layer has a front side; the Fresnel layer is stacked on the front side. The vehicle-mounted projection screen device provided by this application can improve the user experience.

The application provides a gesture cursor mapping method based on machine vision, a network device and a storage medium, wherein the gesture cursor mapping method based on machine vision comprises the following steps: acquiring a key point set of a body; the key point set comprises two shoulder end point coordinates of shoulders, and the two shoulder end point coordinates are a and b respectively; calculating a shoulder width D; acquiring a hand key point coordinate m; calculating a hand center point coordinate c according to the hand key point coordinate; calculating two diagonal point coordinates of a virtual frame according to the shoulder width D; obtaining a cursor mapping coordinate M of the hand key point on a projection screen based on the two diagonal point coordinates of the virtual frame, the hand key point coordinate m, and the length width and the high height of the projection screen. The size and the position of the virtual frame are added and generated by an algorithm, so that the cursor moving speed is self-adaptive at different distances, the operation range is smaller, the user fatigue is reduced, and the cursor moving speed is adjustable.

1. Name of this design product: Pseudo-holographic projection screen (ancient building eaves design). 2. Purpose of this design: To be used in conjunction with a mobile phone to play pseudo-holographic images, serving as a cultural and creative souvenir. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: the front view.

A vehicle projection screen system and an in-vehicle projection system are provided. The screen system comprises a screen retraction and extension mechanism (30) and a curved guide rail mechanism (40). The screen retraction and extension mechanism (30) comprises a screen frame (301), a screen body (302) configured to retract and extend relative to the screen frame (301), a screen slider (303) attached to the screen body (302), a screen mounting rail (304) with a first sliding groove, a retraction and extension drive source (305), and a retraction and extension transmission unit.The curved guide rail mechanism (40) comprises a pivoting shaft (401), a pivoting screen guide rail (402) rotatably mounted on the pivoting shaft (401) and featuring a second sliding groove, a shift unit, and a shift drive source (403) connected to the pivoting screen guide rail (402) via the shift unit. The screen system allows for the insertion and extension of a rectangular screen, with the movable screen guide (402) being housed in the side interior (22) when inserted, thus reducing the overall space requirement, avoiding a visually obtrusive appearance in the vehicle interior, and improving the aesthetics of the vehicle interior.

The utility model discloses a pure mechanical type projection screen take -up mechanism of dome screen movie device, including the chassis component and the opening -closing part, the chassis component's four around top is provided with the opening -closing part of bolt assembly, and the inside of opening -closing part's top is provided with the lifting hoist mechanism of bolt assembly, the inside top of lifting hoist mechanism is provided with the unfolding positioning part of bolt assembly, this pure mechanical type projection screen take -up mechanism of dome screen movie device utilizes the output end bolt connection of lifting hoist mechanism on unfolding positioning part, makes the arc screen of arc configuration fixedly connected through combination hinge frame, former hinged frame, rear hinged frame, plug connector, hoist arc seat and rubber band, so as to be convenient for unfolding and recycling, so when needing to clean, can be recycled into the state of integrated straight line, so that user does not have to carry out more displacement when cleaning and replacing, can improve security, and also improved work efficiency.

The application relates to the technical field of vehicle projection, in particular to a control method, a vehicle projection curtain device, a controller and a vehicle. A control method of a vehicle projection curtain device comprises the following steps: in response to a curtain hovering instruction, the current state of the clutch is acquired; when the current state is separated and the energized state, the electromagnetic body of the clutch is controlled to be turned on and turned off in multiple stages, so that the friction disc of the clutch approaches and engages the brake disc of the clutch in a reduced impact manner. A vehicle projection curtain device comprises a clutch, a curtain and a controller. A controller comprises a memory and a processor. A vehicle comprises a vehicle curtain projection device. The application can reduce the noise of the clutch "start-stop", and effectively improve the vehicle experience.

The application discloses a correction method of a projection image and a laser projection device, and relates to the field of projection display. In the process of projecting a first projection image to a projection screen, the laser projection device acquires a shooting image obtained by shooting the projection screen. The laser projection device corrects the projection position of the projection image to be projected based on the offset parameters determined based on the initial positions of a plurality of correction patterns and the target positions of the plurality of correction patterns in the shooting image, thereby avoiding the problem that the projection image does not match the projection screen and ensuring the display effect of the projection image. Moreover, since the method provided in the application automatically corrects the projection image to be projected in the process of projecting the first projection image to the projection screen, the user does not need to manually perform the correction operation, and the normal playing of the display picture is not interrupted. That is, the method provided in the application realizes user-perception-free correction, and the user experience is good.

The utility model discloses an atmosphere device. Include: first projection subassembly, including first lamp body, at least one optical element located first lamp body top, define the central axis of first projection subassembly as P1, and first projection subassembly includes strong light area and surrounds the soft light area of strong light area and is provided with, second projection subassembly defines the central axis as P2, wherein P1 and P2 form the angle theta between, wherein 30 degree <= theta <= 120 degree, and second projection subassembly at least includes the second lamp body, projection screen and imaging lens that set gradually, and second projection subassembly projects the following light effect one: lyrics projection or pattern projection or animation projection, and lyrics caption or pattern or animation shadow of second projection subassembly projection falls in the soft light area of first projection subassembly, or the projection light effect of first projection subassembly surrounds lyrics setting or through the light effect of first projection subassembly and watches the light effect of formation of second projection subassembly, and the combination of both, enhances atmosphere feeling, and highlights respective projection characteristics.

The application provides an AR-HUD calibration method, opens an HUD, performs one-time shooting, processes a projection virtual image obtained by shooting to obtain key point coordinates of a post-distortion projection virtual image, closes the HUD, performs twice shooting, and obtains actual physical coordinates of key points on a calibration board; according to external parameters of an eye position camera and the key point coordinates of the post-distortion projection virtual image, the physical world coordinates corresponding to the post-distortion projection virtual image are calculated; according to the key point coordinates of the post-distortion projection virtual image and the corresponding physical world coordinates, the conversion relationship between the two is calculated, the image coordinate position corresponding to the projection screen is calibrated according to the conversion relationship, and a display pattern is displayed at the image coordinate position, so that the projection virtual image and the road real scene environment are perfectly fused on the automobile front windshield, blind driving hazards are avoided, and a new bridge of human-computer interaction is constructed.

1. The name of the design product: automobile projection screen driver. 2. The use of the design product: the design product is used for turning over and driving of automobile projection screen. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. Other situations that need to be explained: A enlarged view is the partial enlarged view of the position marked A in perspective view 1.

A projection screen includes an optical structure layer, a reflection layer, and a light-shielding layer. The optical structure layer includes an image display portion and a scattering portion that are integrally connected. The reflection layer is disposed on the scattering portion opposite to the image display portion. The light-shielding layer is disposed on the reflection layer opposite to the scattering portion. A method for manufacturing the projection screen includes: forming the optical structure layer including the image display portion and the scattering portion that are integrally connected; and forming the reflection layer and the light-shielding layer. The reflection layer is disposed on the scattering portion opposite to the image display portion. The light-shielding layer is disposed on the reflection layer opposite to the image display portion.

The present application relates to the technical field of projection display, and discloses a method and system for projection screen light field display gain under ambient light. The method establishes a dynamic light field distribution model through real-time acquisition of ambient light data, projection screen data and projection device original output signal, and fusion processing. Based on the dynamic light field distribution model, adaptive genetic algorithm is used to optimize compensation weight, and a light field compensation parameter set is generated to perform reverse compensation processing on the original output signal in terms of brightness gain, contrast and chrominance offset, and generate an enhanced projection signal. The system includes multi-source data acquisition, light field feature extraction, dynamic compensation calculation, signal enhancement processing and closed-loop feedback control modules, ensures that the projection image maintains the best display effect under different ambient light conditions, and significantly improves the audience viewing experience.

The application discloses a projection screen and a projection system, and belongs to the field of projection display. The projection screen comprises an inner frame, a carrier part, a curtain sheet, a plurality of pull rods and a plurality of tensioning members. The inner frame comprises a plurality of frame edges connected in sequence, the frame edge is a tubular structure, and the side wall of the frame edge has an opening. The edge part of the carrier part is connected with the pull rod, the pull rod is located in the inner part of the corresponding frame edge, and the edge part of the carrier part extends into the inner part of the frame edge through the opening. Since the frame edge is a tubular structure, the pull rod can be located in the inner part of the frame edge. Therefore, the pull rod in the projection screen can be constrained by the tensioning member and the frame edge, so that the pull rod is not easy to fall off from the inner frame, and the stability of the projection screen is improved. In addition, the structure of the frame edge in the tubular structure is relatively simple, for example, the frame edge can be manufactured by a sheet metal bending process. Therefore, the structure of the projection screen can be effectively simplified by arranging the frame edge in the tubular structure.

1. Name of the product in this design: Display screen panel with a graphical user interface for programming experimentation. 2. Purpose of this design: For displaying and running programs. 3. The key design features of this product are the graphical user interface content on the screen. 4. The picture or photo that best illustrates the key design points: Design 1 front view. 5. The rear view, left view, right view, top view, and bottom view of Design 1-4 have no design points, so the rear view, left view, right view, top view, and bottom view of Design 1-4 are omitted. 6. Design 1 is designated as the basic design. 7. Purpose of the graphical user interface: The graphical user interface is used for the control, practice, display and operation of the programming experimental platform. Designs 1-4's ​​main views are the detailed interface for controlling the programming experiment platform. Different task options can be clicked to perform different operations to meet different needs. For example, clicking on the device tools in the sidebar allows you to select different device tools to operate in the central area, and clicking on the control area below allows you to perform specific operations on the selected device tools. 8. This display panel is used in computers, tablets, mobile phones, in-vehicle central control screens, smart TVs, learning machines, game consoles, splicing screens, smart large screens, projection screens, digital instrument panels, and smartwatches. 9. Design 3 and Design 4 request color protection.

Systems and methods described herein relate to using silver-coated twisted-coil polymer fibers to adjust the shape of inflatable structures, such as to provide an adjustable curved projection screen. In one embodiment, a method includes providing an adjustable inflation system capable of providing an electrical stimulus to a set of fibers within an inflatable structure where the set of fibers can adjust a surface of the inflatable structure from a first state to a second state based on the electrical stimulus.

At least one computer game controller device, the or each computer game controller device including an electromagnetic radiation detecting device serving to detect electromagnetic radiation in the invisible spectrum and one or more data processing devices, an image projection screen including an array of marker devices arranged to be illuminated by electromagnetic radiation in the invisible spectrum, and a calibration device including a further data processing device and one or more electromagnetic detecting devices serving to detect electromagnetic radiation in both the visible and invisible spectrum, the calibration device serving to calculate positional offsets of the array of marker devices relative to an image projected on the projection screen.

This invention relates to the field of floor-mounted projection screen technology, specifically a floor-mounted screen with lockable screen height and a locking control method. An MCU module controls a motor to drive a rotating rod to rotate clockwise or counterclockwise to release the screen, and a monitoring module monitors the motor's operation in real time. When the desired position is reached, the MCU module stops the motor and simultaneously controls an electric push rod to drive a toothed locking module to act on a slide block. The interaction between the toothed locking module and the slide block achieves engagement and locking. This device is not only simple in structure, but also intelligently opens and retracts the screen using the control method provided, and can achieve locking control at a predetermined opening angle. This avoids the tediousness of manual operation and provides excellent control performance.

This invention discloses a lens inspection device, relating to the field of lens inspection technology. The device includes a placement station for placing finished eyeglasses in a first direction. The device comprises a projection screen, an imaging system, and a detection device. The projection screen is positioned along the first direction towards the placement station and has dimensional scales. The imaging system illuminates parallel light along the first direction towards the placement station, ensuring that the irradiation area of ​​the parallel light covers at least multiple key inspection points of the finished eyeglass lens, and projects an image of the finished eyeglass onto the projection screen proportionally. The detection device detects the pupillary height and / or pupillary distance of the lens based on the overlapping image of the dimensional scales on the projection screen and the multiple key inspection points. By projecting the image of the finished eyeglass onto the dimensional scaled projection screen proportionally, the detection device can quickly detect the pupillary height and pupillary distance of the lens based on the overlapping image, improving inspection efficiency.

The utility model relates to the technical field of dome movie projection equipment, disclose a kind of tensioning and fixing structure of dome movie projection screen, solve the problem of uneven tensioning of existing structure screen, insufficient spherical surface precision of support frame and inconvenient installation and maintenance.The structure includes support frame, dome screen, connecting assembly and flexible tensioning piece;Support frame is connected by radial connecting rod (crossbeam, vertical rod, support rod) connection and is constituted by multiple concentric arc beams, and the both ends of arc beam are fixed to foundation through flange with waist type hole;Dome screen edge is provided with flanging structure, the locking member in the buckle member on it and support rod, crossbeam are adapted to be clamped, and flexible tensioning piece is provided with both and is 30-45 degrees angle with arc beam.The structure can enhance the rigidity of frame, ensure the spherical surface precision, realize the uniform tensioning of screen, and be convenient for installation adjustment and maintenance, effectively improve the projection picture quality and equipment practicability.

This invention discloses a pose calibration device for a surface shape detection equipment, belonging to the field of precision optical measurement technology. Its purpose is to solve the technical problem of low pose monitoring accuracy in existing surface shape detection equipment. The fiber optic connector assembly outputs a laser beam provided by a laser control assembly. The laser beam passes sequentially through a No. 2 reflecting mirror assembly, a beam splitter assembly, and a No. 1 reflecting mirror assembly before being incident on a beam splitter assembly. The reflected light from the beam splitter assembly passes through a collimating and expanding primary mirror before being incident on the device under test. The laser beam reflected by the device under test passes through the collimating and expanding primary mirror before being incident on the beam splitter assembly and split into a transmitted beam and a reflected beam. The transmitted beam passes through a No. 5 reflecting mirror assembly and a No. 4 reflecting mirror assembly before being incident on a projection screen assembly, forming a light spot image. The coordinates of the light spot image are detected by a pose monitoring camera assembly. The reflected beam passes through a No. 1 reflecting mirror assembly, a beam splitter assembly, a No. 3 reflecting mirror assembly, and an aperture assembly before entering a diffraction light spot acquisition camera assembly.

The application discloses a projection screen and a preparation method thereof, and relates to the technical field of projection screens.The projection screen comprises a fabric layer, a base layer covering the surface of the fabric layer, and an optical layer covering the surface of the base layer; the surface of the fiber of the fabric layer is provided with an interfacial bonding layer formed by polyethylene imine, which helps to improve the interlayer bonding force; the base layer contains furan group modified polyurethane resin and bismaleimide crosslinking agent, and can realize thermal repair of surface micro scratches; the optical layer uses silica@graphene-silver core-shell structure composite powder, which helps to realize multifunctional synergy such as scattering, absorption and brightening, and improves the viewing effect.The projection screen provided by the application has the characteristics of high adhesion strength, damage self-repairing ability, high brightness, wide viewing angle, excellent anti-environmental light interference and long service life, and solves the technical bottlenecks of easy peeling between layers, easy damage on the surface and difficult consideration of optical performance in the prior art.

The application provides a projection curtain, and relates to the technical field of curtain structures. The projection curtain can improve the display effect of a projection picture, reduce the thickness of the projection curtain, and is beneficial to reducing the required storage space of the projection curtain. The projection curtain comprises a base layer and an elastic body layer, wherein at least two elastic body layers are respectively stacked on the opposite sides of the base layer. The projection curtain is used for presenting a projection picture.

This utility model discloses a first projection module and a second projection module installed on a lamp holder. The first projection module includes at least a first light source and a corrugated sheet, with light emitted from the first light source passing through the corrugated sheet and projected outwards; or the first projection module includes a first light source and at least one optical element, with light emitted from the first light source being refracted or reflected by the optical element before being projected outwards. The central axis of the projection angle of the first projection module is defined as P1. The second projection module is movably connected to the lamp holder and includes a second light source, a projection screen, and an imaging lens. The second projection module forms lyric projection, pattern projection, or animation projection. The central axis of the projection angle of the second projection module is defined as P2. When either the first or second projection module rotates, the angle θ between the central axes P1 and P2 changes. Users can adjust the relationship between the projection positions of the first or second projection modules according to their needs.