WO2022218054A1 - Présentateur visuel - Google Patents

Présentateur visuel Download PDF

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Publication number
WO2022218054A1
WO2022218054A1 PCT/CN2022/079149 CN2022079149W WO2022218054A1 WO 2022218054 A1 WO2022218054 A1 WO 2022218054A1 CN 2022079149 W CN2022079149 W CN 2022079149W WO 2022218054 A1 WO2022218054 A1 WO 2022218054A1
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
camera
mounting
installation
main body
Prior art date
Application number
PCT/CN2022/079149
Other languages
English (en)
Chinese (zh)
Inventor
潘文斌
Original Assignee
广州视源电子科技股份有限公司
广州视睿电子科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州视源电子科技股份有限公司, 广州视睿电子科技有限公司 filed Critical 广州视源电子科技股份有限公司
Publication of WO2022218054A1 publication Critical patent/WO2022218054A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied

Definitions

  • the present application relates to the technical field of booths, and in particular, to a video booth.
  • Video booth is a kind of demonstration equipment that converts physical objects, documents, pictures and other information into image signals through camera devices and photoelectric conversion technology, and outputs them on display devices such as cameras and monitors.
  • the video booth 80 includes a main body 81 , a cantilever 82 and a table 84 for supporting articles.
  • One end of the cantilever 82 is hingedly mounted on the main body 81 , and the other end protrudes in a cantilever shape.
  • the item can be placed on the table 84, and the target shooting area S is generally the area on the table 84 on the side of the video booth 80.
  • the field of view of the camera 83 is a conical area.
  • the camera 83 can be fixed on the other end of the cantilever 82, and the lens of the camera 83 is facing the target shooting area S.
  • the illumination light source is illuminated from the top of the video booth, which will cause partial shadows on the items to be displayed in the target shooting area, reducing the quality of the projected picture, thereby affecting the display effect of the video booth.
  • the embodiments of the present application provide a video booth, in which shadows do not appear in the projected picture, and the display effect of the video booth is better.
  • the present application provides a video booth, which includes a main body and a camera assembly; the main body has an installation side wall extending along its longitudinal direction; the camera assembly includes a camera and a casing with an installation space formed inside, and the casing is embedded in the installation space. On the side wall, the camera is arranged in the installation space; the casing is provided with a first opening, and the lens of the camera faces the first opening, so that the lens is exposed to the outside of the main body through the first opening; the optical axis of the lens is clamped with the lateral direction of the main body The angle is an acute angle.
  • an installation groove is formed on the outer surface of the main body, and the groove bottom of the installation groove forms an installation side wall.
  • the housing includes a bent portion, the first opening is located on the bent portion, the bent portion is disposed opposite to the lens, and the bending direction of the bent portion faces the camera.
  • the camera assembly further includes an installation bracket and an adjustment bracket located in the installation space, the adjustment bracket can rotate relative to the installation bracket around the axis of the installation bracket, and the camera is arranged on the installation bracket; a first abutting part is provided, and a second abutting part slidably matched with the first abutting part is arranged on the mounting bracket;
  • the first abutting portion and the second abutting portion are slidably matched, and the mounting bracket is partially displaced along the axial direction of the mounting bracket to change the deflection angle of the camera.
  • the second abutting portion includes a mating surface extending along the circumferential direction of the adjustment bracket, the mating surface is used for sliding abutment with the end of the second abutting portion, and the mating surface is along the adjustment bracket
  • the circumferential setting heights are different.
  • the mating surface has a non-slip texture.
  • the camera assembly further includes a mounting cover and a damping member located in the housing, the mounting cover is mounted on the housing and is disposed opposite to the mounting bracket;
  • the damping member is clamped between the installation cover and the installation bracket, and applies an elastic force toward the adjustment bracket to the installation bracket, so that the adjustment bracket abuts on the inner wall of the housing.
  • the camera assembly further includes a press cover, the press cover is located on the side of the mounting bracket facing the mounting cover, and the camera is fixed on the mounting bracket through the press cover;
  • the pressure cover is provided with a limit stop portion, and the limit stop portion can be clamped on the installation cover when the circumferential direction of the installation bracket is partially deflected to a preset position.
  • two rotating shaft portions opposite to each other are provided on the edge of the mounting frame, and the two rotating shaft portions are rotatably supported on the inner wall of the housing, so that the mounting frame can revolve around the axis of the rotating shaft portion Yaw; there are two limit stop parts, and the vertical line connecting the positions of the two limit stop parts passes through the axis of the rotating shaft part.
  • a second opening is formed in the installation cover corresponding to the limit stop portion, and the limit stop portion is clamped on the edge of the second opening.
  • the damping member is a sealing foam cotton, and the sealing foam cotton has a compression amount of 20% after installation.
  • the included angle between the optical axis of the lens and the lateral direction is 42° ⁇ 48°.
  • the video booth of this embodiment includes a main body and a camera assembly;
  • the main body has an installation sidewall extending longitudinally thereof,
  • the camera assembly includes a camera and a casing with an installation space formed inside, the casing is embedded on the installation sidewall, and the camera is arranged on In the installation space;
  • the casing is provided with a first opening, and the lens of the camera faces the first opening, so that the lens is exposed to the outside of the main body through the first opening; the angle between the optical axis of the lens and the lateral direction of the main body is an acute angle.
  • the lens can be directed toward the target shooting area; and the camera is arranged on the casing, and the casing is embedded in the installation side wall extending longitudinally along the main body.
  • FIG. 1 is a schematic structural diagram of a video booth in the prior art
  • FIG. 2 is a schematic diagram of an exploded structure of a video booth provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a use state of a video booth provided by an embodiment of the present application.
  • FIG. 4 is a bottom view of a main body in a video booth provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of an exploded structure of a camera assembly in a video booth provided by an embodiment of the present application
  • FIG. 6 is a schematic structural diagram of a camera assembly in a video booth provided by an embodiment of the present application.
  • FIG. 7a is a schematic structural diagram of an angle adjustment bracket in a video booth provided by an embodiment of the application.
  • 7b is a schematic structural diagram of another angle of the adjusting bracket in the video booth provided by the embodiment of the application.
  • 7c is a schematic structural diagram of another angle of the adjusting bracket in the video booth provided by the embodiment of the application.
  • FIG. 8a is a schematic structural diagram of an angle of a mounting bracket in a video booth provided by an embodiment of the application;
  • 8b is a schematic structural diagram of another angle of the mounting bracket in the video booth provided by the embodiment of the application.
  • 8c is a schematic structural diagram of another angle of the mounting bracket in the video booth provided by the embodiment of the application.
  • 9a is a schematic structural diagram of another angle of a camera assembly in a video booth provided by an embodiment of the application.
  • 9b is a schematic structural diagram of another angle of a camera assembly in a video booth provided by an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of another angle of a camera assembly in a video booth provided by an embodiment of the application.
  • FIG. 11 is a schematic structural diagram of mutual cooperation between an external tool and a camera assembly in a video booth provided by an embodiment of the present application.
  • the existing video booth has the problem of poor display effect. This is because the camera is fixed on the free end of the cantilever, and when the light is irradiated from the top of the video booth, the part of the cantilever between the body and the camera will cast a shadow on the object to be displayed in the area to be shot, and the shadow falls on the camera's visual field. In the field, it will affect the display effect of the video booth.
  • the height direction of the video booth is defined as the longitudinal direction Z of the video booth, and the direction perpendicular to the longitudinal direction Z is defined as the horizontal direction H.
  • FIG. 2 is a schematic diagram of an exploded structure of a video booth provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a usage state of the video booth provided by an embodiment of the present application.
  • the video booth 100 of this embodiment includes a main body 10 and a camera assembly 20 .
  • the main body 10 has an installation side wall 13 extending along its longitudinal direction Z;
  • the camera head assembly 20 includes a camera head 21 and a casing 22 with an installation space 222 formed therein, the casing 22 is embedded on the installation side wall 13, and the camera head 21 is arranged in the installation space In 222;
  • the casing 22 is provided with a first opening 221, and the lens 211 of the camera 21 faces the first opening 221, so that the lens 211 is exposed to the outside of the main body 10 through the first opening 221;
  • the included angle ⁇ of the transverse direction H is an acute angle.
  • the lens 211 can face the target shooting area T; and the camera 21 is arranged on the casing 22, and the casing 22 is embedded
  • the installation side wall 13 extending along the longitudinal direction Z of the main body 10
  • the light from the top of the video booth 100 will not be blocked by the outer surface of the longitudinally extending installation side wall 13, so it will not be photographed at the target Partial shadows are generated on the items to be displayed in the area, so that the display effect of the video booth 100 is better.
  • the main body 10 may include a casing 11 and components such as a circuit board located in the casing 11 .
  • a mounting groove 12 may be opened on the outer surface of the main body 10 , and the bottom of the mounting groove 12 forms the mounting side wall 13 . It can be understood that the present application is not limited to this, and the installation side wall 13 may also be directly formed by the wall of the housing 11 of the main body 10 .
  • the installation side wall 13 extends along the longitudinal direction Z of the main body 10 , which means that the installation side wall 13 is arranged perpendicular to the display board 30 described below, so that the light from the top of the video booth 100 is irradiated on the installation side wall 13 and projected on the display board 30 . , there will be no shadow on the outside of the installation side wall 13 .
  • the mounting side wall 13 may extend from the top of the main body 10 to the bottom of the main body 10 , or may extend from the top of the main body 10 to a position at a certain distance from the bottom of the main body 10 .
  • the video booth 100 may further include a display board 30 .
  • One end of the display board 30 is hinged to the bottom of the main body 10 , and the other end is a free end.
  • the display board 30 is located on the side corresponding to the installation side wall 13 . When the display board 30 is open relative to the main body 10, the items to be displayed can be placed on the display board 30; when the display board 30 covers the main body 10, the video booth 100 is not in use.
  • FIG. 4 is a bottom view of a main body in a video booth provided by an embodiment of the present application. 3 and 4, the included angle ⁇ between the optical axis O of the lens 211 and the lateral direction H of the main body 10 is an acute angle, which can ensure that the lens faces obliquely downward, which is convenient for the area to be shot T (target shooting area) on the side of the main body 10. ) to shoot.
  • the lens surface is along the horizontal direction H, and the field of view of the lens (the area indicated by the dotted line in the figure) is deflected inward relative to the area T to be photographed, and the object cannot be photographed well;
  • the included angle ⁇ is 0°, the surface of the lens 211 is along the longitudinal direction Z, and the field of view of the lens 211 is deflected outward relative to the area T to be photographed, and the object cannot be photographed well either.
  • the included angle ⁇ is an acute angle, the field of view of the lens 211 can better cover the area T to be photographed.
  • the included angle between the optical axis O of the lens 211 and the lateral direction may be 42° ⁇ 48°.
  • it may be 45°.
  • the field of view of the lens 211 can be as close as possible to the area T to be photographed.
  • the camera assembly 20 includes a camera 21 and a housing 22 with an installation space 222 formed therein.
  • the housing 22 may be semi-open, with an installation space 222 formed therein. , to set the camera 21 and other components.
  • the casing 22 is provided with a first opening 221 , and the lens 211 of the camera 21 faces the first opening 221 , so that the lens 211 is exposed to the outside of the main body 10 through the first opening 221 . Exposure here means that the lens 211 can be seen from the outside of the video booth 100 through the first opening 221 .
  • the lens 211 may be located in the installation space 222 , or may protrude from the installation space 222 .
  • the distance between the camera 21 and the first opening 221 can be set as required.
  • a transparent lens 223 may also be provided, and the lens 223 is embedded in the first opening 221 .
  • the casing 22 is embedded on the installation side wall 13 , which means that the casing 22 is installed inside the installation side wall 13 , and at least part of the structure passes through the installation side wall 13 and is located outside the installation side wall 13 .
  • a decorative shell 224 may also be provided outside the housing 22 , and the decorative shell 224 is installed on the main body 10 at a position corresponding to the housing 22 .
  • FIG. 5 is a schematic diagram of an exploded structure of a camera assembly in a video booth provided by an embodiment of the present application
  • FIG. 6 is a schematic structural diagram of a camera assembly in a video booth provided by an embodiment of the present application.
  • the housing 22 includes a bent portion 225
  • the first opening 221 is located on the bent portion 225
  • the bent portion 225 is disposed opposite the lens 211
  • the bending direction of the bent portion 225 faces the camera 21 .
  • the housing 22 includes a first wall portion 226, a second wall portion 227, and a bent portion 225 formed between the first wall portion 226 and the second wall portion 227, the first wall portion 226, the bent portion 225 and the second wall portions 227 are connected in sequence, and here the bent portion 225 acts as a transition portion between the first wall portion 226 and the second wall portion 227 .
  • the extension directions of the first wall portion 226 and the second wall portion 227 may have an included angle, for example, they are perpendicular to each other, and the bending portion 225 may be formed as a curved surface bent toward the camera 21 as shown in FIG. 6 .
  • the bending portion 225 can face the lens surface, so that the distances between the points on the bending portion 225 and the lens surface are approximately equal.
  • the present application is not limited to this, and the outer surface of the bending portion 225 may also be bent at an inclined plane.
  • FIGS. 8a, 8b, and 8c are schematic structural diagrams of an adjustment bracket in a video booth provided by an embodiment of the application.
  • the camera head assembly 20 may further include an installation bracket 23 and an adjustment bracket 24 located in the installation space 222.
  • the installation bracket 23 The middle part of the adjusting bracket 24 and the adjusting bracket 24 are provided with avoidance holes, that is, both are formed as annular parts to avoid blocking the field of view of the camera 21 .
  • the adjustment bracket 24 can rotate relative to the installation bracket 23 around the axial direction of the installation bracket 23 , and the camera 21 is arranged on the installation bracket 23 .
  • the adjusting bracket 24 is provided with a first abutting portion 241
  • the mounting bracket 23 is provided with a second abutting portion 231 slidably matched with the first abutting portion 241 ; when the adjusting bracket 24 rotates relative to the mounting bracket 23 , the first abutting portion 231
  • the abutting portion 241 is slidably fitted with the second abutting portion 231 , and partially displaces the mounting bracket 23 along its axial direction, so as to change the deflection angle of the camera 21 .
  • the first abutting portion 241 includes a mating surface 2411 extending along the circumferential direction of the adjusting bracket 24 .
  • the mating surface 2411 is used for sliding abutment with the end of the second abutting portion 231 , and the mating surface 2411 is along the adjusting bracket 24 .
  • the circumferential setting heights are different.
  • the second abutting portion 231 can be, for example, a protruding portion protruding outward from the mounting bracket 23, especially toward the adjusting bracket 24, the top end of which is used to abut with the mating surface 2411; the top end of the first abutting portion 241
  • the mating surface 2411 is formed by the surface, for example, the first abutting portion 241 is a gently slope-shaped structure extending along the circumferential direction of the adjusting bracket 24 .
  • a recess 2412 can be provided on the preset position of the matching surface 2411 on the adjustment bracket 24, so that when the installation bracket 23 and the adjustment bracket 24 are set relative to each other, The second abutting portion 231 can be clamped in the recess 2412 to define the initial position of the mounting bracket 23 and the adjusting bracket 24. It can be understood that the initial position corresponds to the middle position of the camera 21, that is, the position where no deflection occurs. .
  • the mating surface 2311 may have anti-slip textures, so that the top end of the second abutting portion 231 can stop at a preset position of the mating surface 2411 .
  • the present application is not limited to this, and the first abutting portion may be formed on the mounting bracket, and the second abutting portion may be formed on the adjusting bracket.
  • the camera assembly 20 further includes a mounting cover 25 and a damping member 26 located in the housing 22.
  • the mounting cover 25 is mounted on the housing 22 and is opposite to the mounting bracket 23.
  • the installation cover 25 and the housing 22 together enclose the aforementioned installation space 222 .
  • the damping member 26 is clamped between the mounting cover 25 and the mounting bracket 23, and always applies an elastic force to the mounting bracket 23 toward the adjusting bracket 24, so that the adjusting bracket 24 abuts on the inner wall of the housing 22, so as to ensure The adjusting bracket 24 and the mounting bracket 23 do not move in series in the direction of the optical axis of the lens 211 of the camera 21 .
  • the damping member 26 is a sealing foam wadding, and the sealing foam wadding has a 20% compression after installation.
  • FIG. 9a is a schematic structural diagram of another angle of a camera assembly in a video booth provided by an embodiment of the present application
  • FIG. 9b is a structural schematic diagram of another angle of a camera assembly in a video booth provided by an embodiment of the present application.
  • the camera assembly 20 further includes a press cover 27, the press cover 27 is located on the side of the mounting bracket 23 facing the mounting cover 25, and the camera 21 is fixed on the mounting bracket 23 through the press cover 27.
  • the mounting bracket 23 is provided with a mounting slot 232 on the side facing away from the adjusting bracket, the camera 21 is located in the mounting slot 232, and the pressing cover 27 is pressed against the camera 21 and fixed on the mounting bracket 23.
  • the pressure cover 27 may be provided with a limit stop portion 271 , and the limit stop portion 271 can be clamped to the installation bracket 23 when the circumferential direction of the installation bracket 23 is partially deflected to a preset position. cover 25.
  • two rotating shaft portions 233 are provided on the edge of the mounting frame opposite to each other, and the two rotating shaft portions 233 are rotatably supported on the inner wall of the housing 22 so that the mounting frame can rotate around the rotating shaft.
  • the axis of the rotating shaft portion 233 is yawed; when the camera assembly 20 is installed on the main body 10 , the axis of the rotating shaft portion 233 may be perpendicular to the optical axis of the lens 211 .
  • the mounting cover 25 is provided with a second opening 251 corresponding to the limiting stopper 271, and the limiting stopper 271 is hooked on the edge of the second opening 251.
  • the second abutting portion 231 on the mounting bracket 23 slides on the mating surface 2411 of the first abutting portion 241 on the adjusting bracket 24 in the circumferential direction.
  • the heights of the mounting brackets 23 are different from each other, so the circumferential local position of the mounting bracket 23 is displaced along its own axis, so as to realize the deflection of the mounting bracket 23 along the rotating shaft portion 233 , that is, the camera 21 is driven to swing along the rotating shaft portion 233 to realize the angle of the camera 21 . adjustment.
  • the damping member 26 is always pressed between the mounting bracket 23 and the mounting cover 25 , so the partial axial displacement of the mounting bracket 23 is absorbed by the elastic deformation of the damping member 26 .
  • the damping member 26 when the part of the mounting bracket 23 on the left side of the drawing (hereinafter referred to as the left part of the mounting bracket 23) is deflected to the inside of the drawing (counterclockwise), the damping member 26 is located on the left side The side part is pulled by the left part of the mounting bracket 23, the damping member 26 further pulls the left part of the limit stop part 271, and when the deflection reaches the limit position, the left part of the limit stop part 271 abuts Press against the left edge of the second opening 251 , thereby limiting further deflection of the left portion of the mounting bracket 23 .
  • the yaw of the right side portion of the mounting bracket 23 is also limited based on the same principle. Thereby, the yaw of the camera 21 is restricted within a certain range.
  • FIG. 10 is a schematic structural diagram of another angle of the camera assembly in the video booth provided by the embodiment of the application
  • FIG. 11 is a structural schematic diagram of the mutual cooperation between the external tool and the camera assembly in the video booth provided by the embodiment of the application.
  • a plurality of force applying portions 242 are further provided on the side of the adjusting bracket 24 away from the mounting bracket 23 , and the plurality of force applying portions 242 extend along the circumferential direction of the adjusting bracket 24 . There is also a distance; the external tool 28 is provided with a notch portion 281 corresponding to the force applying portion 242 . In this way, in actual use, only the notch portion 281 of the external tool 28 is facing the force applying portion 242, and the external tool 28 is twisted to drive the adjusting bracket 24 to rotate.
  • the display board 30 is first opened relative to the main body 10 , for example, the display board 30 can be opened to a horizontal position, and then the items to be displayed are placed on the display board 30 .
  • the adjusting bracket 24 is rotated by using the external tool 28 to adjust the camera 21 to an appropriate angle, and the display of the item starts.
  • the video booth 100 includes a main body 10 and a camera assembly 20; the main body 10 has a mounting side wall 13 extending along its longitudinal direction Z, and the camera assembly 20 includes a camera 21 and a casing 22 with an installation space 222 formed therein. 22 is embedded on the installation side wall 13, and the camera 21 is arranged in the installation space 222; the casing 22 is provided with a first opening 221, and the lens 211 of the camera 21 faces the first opening 221, so that the lens 211 passes through the first opening 221 Exposed to the outside of the main body 10 ; the included angle between the optical axis of the lens 211 and the lateral direction H of the main body 10 is an acute angle.
  • the lens 211 can face the target shooting area; and the camera 21 is arranged on the casing 22, and the casing 22 is embedded in the longitudinal direction Z of the main body 10.
  • the installation side wall 13 when the video booth 100 is in use, the light from the top of the video booth 100 will not be blocked by the outer surface of the longitudinally extending installation side wall 13, so there will be no local occurrence on the items to be displayed in the target shooting area. Shadows make the display effect of the video booth 100 better.

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  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Accessories Of Cameras (AREA)

Abstract

La présente demande concerne un présentateur visuel. Le présentateur visuel comprend un corps principal et un ensemble caméra, le corps principal présentant une paroi latérale de montage s'étendant dans une direction longitudinale du corps principal ; l'ensemble caméra comprend une caméra et un boîtier dans lequel est formé un espace de montage, le boîtier étant intégré dans la paroi latérale de montage, et la caméra étant agencée dans l'espace de montage ; le boîtier est pourvu d'une première ouverture, et une lentille de la caméra fait face à la première ouverture de telle sorte que la lentille est exposée hors du corps principal au moyen de la première ouverture ; et un angle compris entre un axe optique de la lentille et une direction transversale du corps principal est un angle aigu. Le présentateur visuel de la présente demande présente un effet d'affichage relativement bon.
PCT/CN2022/079149 2021-04-12 2022-03-03 Présentateur visuel WO2022218054A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202120744718.7 2021-04-12
CN202120744718.7U CN214675326U (zh) 2021-04-12 2021-04-12 视频展台

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WO2022218054A1 true WO2022218054A1 (fr) 2022-10-20

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PCT/CN2022/079149 WO2022218054A1 (fr) 2021-04-12 2022-03-03 Présentateur visuel

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WO (1) WO2022218054A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN214675326U (zh) * 2021-04-12 2021-11-09 广州视源电子科技股份有限公司 视频展台

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204029174U (zh) * 2014-05-14 2014-12-17 上海融磁电子有限公司 壁挂式数字视频展台
CN206249629U (zh) * 2016-11-30 2017-06-13 深圳市中龙旗科技有限公司 一种中控展台全集成红外触控一体机
CN208703462U (zh) * 2018-05-21 2019-04-05 苏州腾邦科技有限公司 摄像头视角角度可调节结构
CN109686178A (zh) * 2018-12-28 2019-04-26 郭祯翔 一种多功能教学书写板、以及教学系统
CN214675326U (zh) * 2021-04-12 2021-11-09 广州视源电子科技股份有限公司 视频展台

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204029174U (zh) * 2014-05-14 2014-12-17 上海融磁电子有限公司 壁挂式数字视频展台
CN206249629U (zh) * 2016-11-30 2017-06-13 深圳市中龙旗科技有限公司 一种中控展台全集成红外触控一体机
CN208703462U (zh) * 2018-05-21 2019-04-05 苏州腾邦科技有限公司 摄像头视角角度可调节结构
CN109686178A (zh) * 2018-12-28 2019-04-26 郭祯翔 一种多功能教学书写板、以及教学系统
CN214675326U (zh) * 2021-04-12 2021-11-09 广州视源电子科技股份有限公司 视频展台

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