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28results about How to "Improve the projection effect" patented technology
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A device for measuring the thickness of a cable sheath
Owner:JIAXING HENGGUANG ELECTRIC POWER CONSTR
Double-lamp calibration system for self-closed loop of vehicle lamp and calibration method of double-lamp calibration system
PendingCN119417911AImprove efficiencyFix brightness inconsistenciesImage analysisComputer hardwareLight spot
The double-lamp calibration system comprises a vehicle-mounted development board, a headlamp module with a controller, a vehicle-mounted camera and a double-lamp automatic calibration program, and the vehicle-mounted development board is provided with a lamp control program and an image acquisition program; the light emitting mode of the headlamp module is driven by a lamp control program; and the vehicle-mounted camera is controlled by an image acquisition program to capture corresponding images. The double-lamp automatic calibration program adopts a calibration method to automatically calculate light spot centers of left and right lamps, calculates a light beam overlapping area according to calibration results of the left and right lamps, and performs brightness attenuation processing on the area to generate projection mask patterns corresponding to the left and right lamps. According to the method, the position of the light beam of the vehicle lamp is automatically recognized by introducing an algorithm, accurate calibration of the vehicle lamp can be automatically completed within 10 seconds through the vehicle-mounted camera without manual intervention, and more efficient and accurate calibration is achieved.
Owner:CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
Touch projection screen
ActiveCN222506881Ureasonable designsuitable designPicture reproducers using projection devicesInput/output processes for data processingComputer hardwareCapacitance
The utility model relates to the technical field of projection, in particular to a touch projection screen. The touch projection screen comprises a screen main body, and the screen main body comprises a surface scratch-resistant layer, a Fresnel structure layer, a light absorption layer, a diffusion layer, a nano-silver touch layer and a substrate layer which are stacked in sequence; the control module comprises a wireless transmitting module, a touch control module and a power supply module; a charging interface is formed in the screen main body, and the control module is integrally arranged below the surface of the screen main body and electrically connected with the nano-silver touch layer; the touch control module receives capacitance change signals of the nano-silver touch control layer and transmits the capacitance change signals to a projector through the wireless transmitting module. According to the touch projection screen, the nano-silver touch layer and the control module are arranged on the projection screen, so that touch interaction of the projection screen is realized on the basis of projection display.
Owner:SHENZHEN HUAKE COMM TECH CO LTD
Vehicle-mounted intelligent lighting module based on DLP and HD dual-module cooperation and control method
PendingCN121803840AImprove the projection effectSolve the shortcomings of being unable to meet the needs of large-size projectionVehicle headlampsElectric circuit arrangementsIntelligent lightingIn vehicle
The invention relates to the technical field of automobile lighting, and discloses a vehicle-mounted intelligent lighting module based on DLP and HD dual-module cooperation and a control method, the vehicle-mounted intelligent lighting module comprises an HD module used for emitting a light source and provided with a field angle matched with a lighting scene; and the DLP module comprises a biconcave lens, two surfaces of the biconcave lens are concave, and the biconcave lens is farthest from the HD module, so that the divergent area of a light source emitted by the HD module is larger when the light source passes through the biconcave lens, and the light is more uniform. According to the vehicle-mounted intelligent lighting module based on DLP and HD dual-module cooperation and the control method, the outermost lens of the projection lens of the DLP module is set to be a biconcave lens, the effective focal length is controlled to be within the range of 25-35 mm, the field angle of 25 degrees * 13 degrees is achieved, a single lamp can achieve the excellent projection effect within a certain distance, a plurality of DLP modules do not need to be additionally matched, and the cost is reduced. Therefore, the defect that an existing color DLP module cannot meet the requirement of large-size projection at a specific distance due to the fact that the FOV angle is reduced in order to guarantee the brightness is overcome.
Owner:HELLA BHAP (TIANJIN) AUTOMOTIVE LIGHTING CO LTD
Picture motion compensation method, system and storage medium in multi-screen combination
ActiveCN116405618Breduce complexityIncrease the proportion of effective feature pointsTelevision system detailsColor signal processing circuitsComputer graphics (images)Engineering
The application discloses a picture motion compensation method and system in multi-screen combination and a storage medium, and relates to the field of picture display. The method comprises the following steps: acquiring first picture information and second picture information of different screen blocks respectively; determining distance direction offset and direction offset of picture pixel values of the first picture information and the second picture information based on a cross-correlation algorithm; correcting the distance direction offset and the direction offset until absolute values of the distance direction offset and the direction offset are within a preset threshold; calculating picture display frequencies of the first picture information and the second picture information, adjusting time of a target splicing boundary of the first picture information and the second picture information based on the picture display frequencies; and multiplying a correction result of the distance direction offset and the direction offset and a time adjustment result of the target splicing boundary to obtain an offset compensation amount, and realizing picture motion compensation in multi-screen combination by using the offset compensation amount. The application better solves the problem of misalignment at a screen splicing position.
Owner:BEIJING TIMES OSEE TECH CO LTD
Projection control method and device, projector and storage medium
PendingCN119420884AImprove experienceImprove the projection effectPicture reproducers using projection devicesProjection imageEngineering
The invention discloses a projection control method and device, a projector and a storage medium, and the method comprises the steps: determining a target white light color coordinate value of the projector according to an environment light color coordinate value and a standard white light color coordinate value; determining target light emitting durations of a plurality of preset light sources corresponding to the target white light color coordinate value and the target projection mode from a duration table; and controlling the plurality of preset light sources to emit light without reducing the current according to the target light emitting duration of the plurality of preset light sources. In the application, the chromaticity coordinate of the emergent light of the ray machine is realized by changing the light emitting duration of the preset light source, the white balance of the projection image projected by the projector is changed under the condition of not changing the current of the preset light source, the condition of brightness loss caused by changing the current of the preset light source is avoided, and the brightness of the projector is improved. Therefore, the projection effect and the user experience are improved.
Owner:APPOTRONICS CORP LTD
Projector
ActiveCN224081931UImprove the projection effectimprove protectionProjectorsPicture reproducers using projection devicesMechanical engineeringProjector
The utility model relates to a projector which comprises a shell, an optical machine assembly and an external lens. The shell is provided with a containing cavity and an opening, and the opening is used for communicating the containing cavity with the external space of the shell. And the ray machine assembly is arranged in the accommodating cavity and comprises a ray machine lens. One end of the external lens penetrates through the opening, is matched with the ray machine lens shaft hole and is used for being matched with the ray machine lens to carry out image projection; the external lens is detachably installed on the ray machine assembly.
Owner:SHENZHEN HUOLE TECH DEV CO LTD
Color calibration method and device, projection equipment and medium
PendingCN119544934AImprove the projection effectReduce the degree of impactPicture reproducers using projection devicesProjection imageRadiology
The invention relates to a color calibration method and device, projection equipment and a medium. The color calibration method comprises the following steps: projecting a preset image; detecting first color information of a projection image of the preset image; according to the first color information and reference color information of the preset image, calibration color information is determined, and the calibration color information is used for calibrating the projection equipment. The projection equipment is calibrated according to the calibration color information, and the influence degree of the projection environment on the color information of the projection equipment can be reduced after calibration, so that the projection effect of the projection equipment is improved.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD
A graphics card cooling fan structure with a projection effect
ActiveCN224287466UImprove the projection effectRich projection effectDigital data processing detailsGraphicsGraphic card
This utility model discloses a graphics card cooling fan structure with projection effect, relating to the field of graphics card fan technology. It includes a mounting bracket, with a fan body mounted on the bottom of the bracket via a fan housing. A mounting base is mounted on top of the fan housing, and an LED light strip is installed inside the mounting base. The mounting base is mounted on the mounting bracket via a convenient installation component. The fan housing and the mounting base are movably connected via a height adjustment component. This graphics card cooling fan structure with projection effect, through the convenient installation component, allows the mounting base to be removed from the mounting bracket simply by pushing the movable clamps on both sides outwards until they are no longer in contact with the mounting base, compressing the springs. This simplifies the disassembly and assembly process, facilitating maintenance. Simultaneously, the height adjustment component allows for the adjustment of the distance between the fan housing and the mounting base, enriching the projection effect.
Owner:HON BON TECH LTD
Projection control method, apparatus, projector and system
The application discloses a projection control method and device, a projector and a system. The method comprises the following steps: obtaining initial projection information of a target projector; determining a to-be-adjusted light-emitting pixel from each target light-emitting pixel based on an initial color value of each target light-emitting pixel and a dark field compensation threshold; performing brightness compensation processing on the initial color value of the to-be-adjusted light-emitting pixel based on the dark field compensation threshold to obtain a target color value of the to-be-adjusted light-emitting pixel; and controlling each target light-emitting pixel in the target projector to output the respective target color value. In the application, when each light-emitting pixel of each projector outputs the respective compensated color value, the brightness of the projection output of the multiple projectors is similar, the uniformity of the projection picture projected by the multiple projectors is better, and therefore the projection effect of the multi-projector projection system is improved.
Owner:APPOTRONICS CORP LTD
Projection target object intelligent positioning method and system, medium and product
PendingCN119484788AHigh precisionImprove the display effectImage analysisProjectorsRadiologyDirection information
A projection target object intelligent positioning method and system, a medium and a product relate to the technical field of projection display, and the method comprises the following steps: carrying out preprocessing operation on multi-angle image data of a projection target object to obtain three-dimensional feature information of the projection target object; matching the three-dimensional feature information with a preset standard feature library, and determining shape information, position information and direction information of the projection target object; determining an optimal projection position and an optimal projection angle of the projection equipment based on the shape information, the position information and the direction information of the projection target object; based on the shape information of the projection target object and the optimal projection position and the optimal projection angle of the projection equipment, performing picture adjustment operation on a preset image or a preset video to obtain projection content; and projecting the projection content to the projection target object. By implementing the method, the positioning accuracy of the projection target object can be improved.
Owner:SHENZHEN ZHENHUO TECH CO LTD
LED flame lamp
The present invention discloses an LED flame lamp, comprising a shell, a light source and a driving motor arranged in the shell, a straight-stripe lens, a color sheet and a first light-transmitting sheet are arranged in sequence along the light emitting direction of the light source, the first light-transmitting sheet is installed on the power end of the driving motor so as to be suitable for the driving motor to drive the first light-transmitting sheet to rotate, a plurality of refractive surfaces are formed on the surface of the first light-transmitting sheet, the color sheet comprises at least three second light-transmitting sheets of different colors and arranged in parallel with the straight-stripe lens, the straight-stripe lens is suitable for refracting the incident light so as to pass through three second light-transmitting sheets at the same time, the second light-transmitting sheet can make the passed light have color, the first light-transmitting sheet is suitable for refracting the light passing through the second light-transmitting sheet through a plurality of refractive surfaces, and the LED flame lamp can project a flame effect on other carriers, and the projection effect is good.
Owner:GUANGZHOU XINGYU LIGHT EQUIP CO LTD
Information transmission method and device, display equipment and computer readable storage medium
PendingCN119603496AEnsure smoothnessFix compatibility issuesSelective content distributionComputer hardwareInformation transmission
The embodiment of the invention discloses an information transmission method, and the method comprises the steps: initiating a session establishment request to a source device under the condition that the source device and a display device establish a device connection through a first protocol; wherein the source equipment and the display equipment are accessed to the same wireless network; aiming at the session establishment request, establishing session connection between the source equipment and the display equipment based on types and fields of various source equipment added in a second protocol; after the session connection is established, monitoring packet loss data of media data transmitted to the display equipment by the source equipment to obtain a monitoring result, and adjusting a to-be-adjusted transmission parameter for transmitting the media data based on the monitoring result to obtain a target transmission parameter; and receiving the media data based on the target transmission parameter. The embodiment of the invention further discloses an information transmission device, display equipment and a computer readable storage medium.
Owner:SHENZHEN SUNDRAY NETWORK SCI TECH
Display device
The utility model relates to the technical field of projection equipment, in particular to a display device. The device comprises a bearing seat and a carrying plate, the carrying plate is fixed at the top of the bearing seat, an electric push rod is assembled at the top of the carrying plate, a projector is fixed at the output end of the electric push rod, a projection curtain is assembled on one side of the carrying plate, and an unfolding mechanism is assembled between the carrying plate and the projection curtain. An adjusting mechanism is assembled between the carrying plate and the electric push rod, the adjusting mechanism is used for adjusting the position of the projector, and the unfolding mechanism comprises a servo motor, a transmission screw rod, a round rolling column, a stretching rod and a dowel bar. According to the utility model, through the structural design of the unfolding mechanism and the adjusting mechanism, the device can be conveniently matched and used outdoors through the projector and the projection curtain, meanwhile, the projection curtain can be rolled up, and the angle of the projector is adjusted, so that a better projection effect of the projector is realized, and the use experience is improved.
Owner:ZHONGKAI UNIV OF AGRI & ENG
A device for measuring lateral coverage of vegetation
ActiveCN113932777BSimple structurereduce weightPhotogrammetry/videogrammetryStands/trestlesVegetationMeasurement device
The present invention relates to a device for measuring the lateral coverage of vegetation, and belongs to the technical field of vegetation ecological monitoring. The device for measuring the lateral coverage of vegetation includes: a camera bracket, a camera fixing crossbar, two camera height adjustment brackets, two hanging background curtain brackets, a curtain and a curtain supporting crossbar, a camera fixing crossbar is clamped between the two camera height adjustment brackets, a camera bracket is slidably arranged on the camera fixing crossbar, an adjustment mechanism for adjusting the camera fixing crossbar to a horizontal state is arranged on the two camera height adjustment brackets, a curtain supporting crossbar is rotatably connected between the two hanging background curtain brackets, a curtain is fixed on the curtain supporting crossbar, and vegetation for measuring the lateral coverage is arranged between the camera height adjustment bracket and the hanging background curtain bracket. Beneficial effects: It can provide a reference for photos, facilitate the calculation of the projection length of plant height and branch length, and the extraction and calculation of coverage, and can quickly and accurately measure the lateral coverage of vegetation.
Owner:INST OF WATER RESOURCES FOR PASTERAL AREA MINIST OF WATER RESOURCES P R C
A fog curtain control device for air imaging
ActiveCN119065191BImprove output stabilityImprove anti-interference abilityProjectorsLiquid spraying apparatusInterference resistanceMechanical engineering
The present application relates to the field of air imaging technology, and discloses a fog curtain control device applied to air imaging, which mainly includes a working mechanism, the working mechanism includes a working shell, a spray assembly and a vertical jet assembly, a long groove is opened in the middle of the bottom end of the working shell, and the working shell is fixedly connected to the spray assembly through the long groove, which is used to form a fog curtain, and a vertical jet assembly is arranged inside the bottom end of the working shell located on the front and rear sides of the spray assembly, which is used to form an air curtain in a vertical direction. When the present invention is used, the water mist sprayed by the spray assembly and the airflow sprayed by the vertical jet assembly move downward synchronously, the water mist forms a fog curtain, and the airflow forms an air curtain, so that the air curtain is protected by the air curtain, the output stability of the fog curtain is enhanced, and the anti-interference ability of the fog curtain is improved, thereby reducing the influence of external wind on the fog curtain, enhancing the flatness of the fog curtain, and improving the projection effect.
Owner:XIXIAN TECH CO LTD
Projection device
ActiveCN222365179UAssembly accuracy is lowImprove assembly efficiencyProjectorsComputer hardwareImage correction
The utility model relates to projection equipment. The projection equipment comprises a driving assembly and a light machine assembly connected to the projection equipment; the first detection piece is used for detecting the distance between a lens of the light machine assembly and the projection surface; the transmission assembly is connected between the driving assembly and the first detection piece, and the driving assembly drives the transmission assembly to drive the first detection piece to swing so as to form a detection area of the first detection piece on the projection surface; and the control module is in electrical signal connection with the driving assembly and the first detection piece, and the control module performs image correction on the picture projected to the projection surface according to the detection parameters of the first detection piece. According to the technical scheme, the technical problems that traditional projection equipment is high in hardware cost, high in assembly precision requirement and complex in data processing are effectively solved.
Owner:ANKER INNOVATIONS TECH CO LTD
Projection lamp capable of generating starry sky and starry river effects
The projection lamp capable of generating the starry sky and starry river effects comprises a lamp holder, a lamp source, an optical lens and a first shell, the lamp source is arranged on one side of the lamp holder, the first shell is arranged on one side of the top of the lamp holder, a second shell is arranged on the other side of the top of the lamp holder, and clamping grooves are evenly formed in the bottoms of the first shell and the second shell. Clamping blocks matched with the clamping grooves are evenly arranged on the outer side of the lamp holder, a support is arranged at the top end of the second shell and the top end of the first shell, an optical lens is arranged in the support through a lens sleeve, and a projection disc is arranged between the optical lens and the lamp source. By installing the lamp holder, the lamp source, the projection disc, the first shell, the second shell, the optical lens, the support, the connecting hole, the clamping block and the clamping groove, a real nebula effect can be simulated, the projection effect and interestingness are better, meanwhile, the projection lamp can be conveniently installed and detached, and overhaul and maintenance are convenient when faults occur.
Owner:中山勇齐电子科技有限公司
Projection lighting lens and lighting equipment
The present invention discloses a projection lighting lens and lighting equipment, including: a first lens element, which is a positive lens and includes a first plano-convex lens; a second lens element, which is a positive lens and includes a double lens; a third lens element, which is a positive lens and includes a meniscus lens; a fourth lens element, which is a negative lens and includes a double concave lens; a fifth lens element, which is a positive lens and includes a second plano-convex lens; wherein the first lens element, the second lens element, the third lens element, the fourth lens element and the fifth lens element are arranged in sequence from the object plane to the image plane along the light propagation direction, and the projection lighting lens is used to project the light of the projection object at the object plane through the first lens element, the second lens element, the third lens element, the fourth lens element and the fifth lens element to the image plane. It can be seen that the present invention can improve the brightness and uniformity of the projection image of the projection lighting lens by improving the structure of the projection lighting lens, thereby improving its projection effect.
Owner:APUTURE IMAGING IND CO LTD
Imaging type self-adaptive high beam module and vehicle using same
The utility model relates to the technical field of vehicle lamps, in particular to an imaging type self-adaptive high beam lamp module and a vehicle using the imaging type self-adaptive high beam lamp module. The lens group comprises a first positive lens and a second positive lens which are sequentially arranged from the image plane to the object plane along the optical axis direction; the first positive lens is a biconvex lens, the end face, facing the first positive lens, of the second positive lens is a convex face, and the end face, back to the first positive lens, of the second positive lens is a concave face. Light emitted by the matrix type light source group is sequentially refracted by the second positive lens and the first positive lens and then is projected. The structure of the whole high beam lamp module can be simplified, the high beam lamp module has good projection performance, and a light pattern graph with proper broadening and a uniform road lighting effect can be formed when the matrix type light source group works.
Owner:CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
Projection optical lens and projection optical system
ActiveCN224303925ULarge amount of lightIncrease screen brightnessProjectorsOptical elementsProjection opticsOphthalmology
The utility model discloses a kind of projection optical lens and projection optical system, it is related to projection lens technical field, wherein, including first lens, second lens, third lens, fourth lens, fifth lens, sixth lens, seventh lens, eighth lens, ninth lens and emitting light chip sequentially arranged from object side to image side along optical axis, the refractive power of first lens, second lens, fifth lens, seventh lens is negative, the refractive power of remaining lens is positive;Wherein, first lens, second lens are plastic aspheric lens, third lens, fourth lens, fifth lens, sixth lens, seventh lens, eighth lens and ninth lens are glass spherical lens, the aperture value F of projection optical lens is less than or equal to 2.0;The lens of utility model provides, and picture brightness is high, by different lens mutual combination and reasonable allocation refractive power, with low cost, high brightness and very good abenign performance, picture is brighter, projection effect is better.
Owner:ZHONGSHAN UNITED OPTOELECTRONIC DISPLAY TECHNOLOGY CO LTD
Optical module and vehicle
ActiveCN119532658AReduce brightness differenceImprove uniformityOptical signallingRoad vehiclesOptical ModuleLight energy
The optical module comprises a light source and a lens module, and the light source is provided with a first axis; the lens module comprises a condensing lens group and is provided with a second axis; a reference plane lambda perpendicular to a main optical axis is taken as a first projection plane, a light incident surface, closest to a light source, of a lens module is taken as an initial light incident surface, and an orthographic projection B of an intersection point of a first axis and the initial light incident surface on the reference plane lambda is positioned on one side of an orthographic projection C of a second axis on the reference plane lambda; and the orthographic projection D of the maximum light energy part of the emergent light beam of the lens module on the reference plane lambda is positioned on the other side of the orthographic projection C of the second axis on the reference plane lambda. The intersection point of the initial light incident surface and the first axis is arranged on one side of the second axis, light with more light sources can enter the lens module from one side of the second axis and is emitted after being processed by the lens module, and the emitted light beams deviate to the other side of the second axis; it can be guaranteed that the brightness difference of all positions of the projection pattern is small, and the uniformity of the projection pattern is effectively improved.
Owner:NANNING LIAOWANG AUTOMOTIVE LAMPS CO LTD
Child bicycle lamp with insertion piece projection function
ActiveCN222629484Ureduce slidingreduce sheddingOptical signalLighting heating/cooling arrangementsMechanical engineeringLithium battery
The utility model relates to a child bicycle lamp with an inserting piece projection function, which belongs to the technical field of bicycle lamps and comprises a bicycle lamp body, an inserting block, a lithium battery, a circuit board and a control panel. The projection mechanism comprises an illuminating lamp and a barrel which are fixedly connected with the bicycle lamp body. According to the child bicycle lamp with the insert projection function, the projection mechanism is arranged, a limiting structure is additionally arranged on the bicycle lamp, a projection sheet can be conveniently limited and fixed, sliding and falling of the projection sheet are reduced, the projection effect of the bicycle lamp is improved, and the problems that the bicycle lamp is not provided with the limiting structure, and the projection effect is poor are solved. The problems that in the using process of the bicycle lamp, a screen sheet is inconvenient to limit and prevent from falling off, the screen sheet is prone to sliding or falling off in the using process, the screen sheet is lost, and the projection effect of the bicycle lamp is affected are solved.
Owner:XINGTAI TONGXING TOYS CO LTD
Rotary 180-degree holographic projection display cabinet
ActiveCN222543381Uincrease flexibilityincrease diversityAdvertisingDisplay meansHydraulic cylinderElectric machinery
The utility model discloses a rotary 180-degree holographic projection display cabinet which comprises a cabinet body, a plurality of universal wheels are connected to the bottom end of the cabinet body in a threaded mode, a controller is arranged on the outer surface of the front side of the cabinet body, a plurality of hydraulic cylinders are arranged in the cabinet body, piston rods are arranged in the hydraulic cylinders, and the universal wheels are connected with the controller. The end, away from the hydraulic cylinder, of the piston rod is fixedly connected with a supporting base, a motor base groove is formed in the middle of the outer surface of the supporting base, a motor is installed in the motor base groove, the output end of the motor is fixedly connected with a second connecting piece, and the end, away from the motor, of the second connecting piece is fixedly connected with a holographic projector. A plurality of first connecting pieces are fixedly connected to the bottom end of the holographic projector, third connecting pieces are fixedly connected to the ends, away from the holographic projector, of the first connecting pieces, shafts are fixedly connected to the inner sides of the third connecting pieces, and rolling wheels are movably connected to the outer surfaces of the shafts. Through the above structure, lifting and moving of the full projector are realized.
Owner:SHANXI DIANCHUANG BRAND DESIGN CO LTD
Combined projection lamp and use method thereof
InactiveCN119436062APrecisely control the rotation angleHigh precisionLighting support devicesProtective devices for lightingElectric machineryRotating disc
The invention belongs to the technical field of projection equipment, particularly relates to a combined projection lamp and a use method thereof, and aims to solve the problems that the service life is affected due to the fact that no protective measures exist outside in the prior art and the projection effect is affected due to the fact that fallen leaves and impurities falling in the air can adhere to a lamp holder during windy and rainy days. The lamp comprises a mounting seat and a lamp body, a base is rotatably arranged at the bottom of the mounting seat, two supporting plates are fixedly arranged at the bottom of the base, the lamp body is rotatably arranged between the two supporting plates, a second motor is fixedly arranged at the bottom of the mounting seat, and a rotating disc is fixedly arranged at the output end of the second motor. Through the arrangement of the first motor and the second motor, high flexibility and accuracy are achieved, the functions of effective protection and automatic cleaning of the lamp body are achieved through the design of the protection shell and the cleaning assembly, the projection effect and quality are improved, the maintenance and cleaning process of equipment is simplified, and the use cost and the maintenance difficulty are reduced.
Owner:SHENZHEN ANDELIAN TECH CO LTD
An image projection system based on projector
ActiveCN118660142BGuaranteed accuracyincrease brightnessPicture reproducers using projection devicesCalibration resultProjection system
The present invention provides an image projection system based on a projector, which performs surface calibration on the projector based on a projection area, determines projector parameters and projection parameters according to the calibration result, ensures the accuracy of projection angle and distance, then determines an initial projection picture based on the projector parameters and projection parameters, performs picture evaluation on the initial projection picture based on an image evaluation model, obtains picture evaluation results, evaluates the projection picture, obtains substandard features of picture display based on the picture evaluation results, divides the substandard features into correctable features and uncorrectable features, determines features that can be corrected by parameter adjustment, provides a basis for parameter adjustment, and finally, based on the correctable features and in combination with an optimization method, optimizes the projector parameters and projection parameters, obtains a target projection picture, adjusts the projection image, improves the projection effect, and brings a good visual experience to users.
Owner:CHENGDU HOTACK TECH CO LTD
Laser adjustment method, device, electronic equipment and storage medium
ActiveCN115113222BImprove the projection effectEliminate bad effectsProjectorsPicture reproducers using projection devicesFluorescenceEngineering
The present disclosure provides a laser adjustment method, device, electronic device and storage medium, wherein the method includes: obtaining a laser current value preset for exciting mixed color fluorescence according to a preset projection brightness requirement; determining a ratio range between a plurality of primary color lasers and corresponding monochromatic fluorescence in the mixed color fluorescence based on a preset color gamut requirement and a preset speckle contrast requirement; determining a primary color current value to be set for each primary color laser based on the ratio range and laser current value determined for each primary color laser. The ratio range in the present disclosure is determined based on the preset color gamut requirement and the preset speckle contrast requirement, so that the corresponding adjusted primary color laser can significantly eliminate the adverse effects caused by speckle, and improve the picture projection effect. In addition, the primary color current value set in the above manner can also meet the maximum efficiency ratio requirement, so that the relevant light source equipment is in a power saving and energy saving state.
Owner:CINEAPPO LASER CINEMA TECH BEIJING CO LTD
Projection equipment and projection system
ActiveCN222636467UImprove the projection effectspeed up air flowProjectorsProjection systemMechanical engineering
The utility model discloses projection equipment and a projection system, and the projection equipment comprises a housing which is provided with a first opening, and the housing and the first opening form a cavity together; the imaging assembly is arranged in the cavity so as to divide the cavity into a first cavity and a second cavity, a communication port for communicating the first cavity with the second cavity is formed between the imaging assembly and the shell, and the first cavity is communicated with the first opening; the lens assembly is arranged at the first opening; the light source assembly is arranged in the second cavity; the first fan is arranged in the second cavity and used for driving air in the cavity to flow, and the opening and closing assembly is arranged at the communicating opening in an opening and closing mode and used for closing and opening the communicating opening. When the lens assembly fogs, the opening and closing assembly can open the communication port, and the temperature of the lens assembly and the temperature of the first cavity are balanced rapidly, so that the elimination rate of water mist on the lens assembly can be improved, and the projection effect of the projection equipment is improved.
Owner:BOE TECHNOLOGY GROUP CO LTD +1