Apparatus for real projection of displays

Abstract

The present application discloses a kind of real projection device suitable for display, for a kind of real projection device using two bases and joint piece to set up camera on display to capture the image of target, the present application includes support, base and image capture module, the present application is combined by two bases and joint piece Hardware design, such as, can effectively set up the camera of capturing target image on the display of electronic device, and can be connected by Arduino Nano transmission device with the electronic device provided with remote controller Electrically wired or wirelessly, users can use remote controller to directly control the shutter of camera to capture the image of target, and display on the display of electronic device, indeed reach the main advantages such as convenient control target image capture and flexible movement of image capture position.

Description

Technical Field

[0001] The present invention relates to a document camera device suitable for a display, and more particularly to a document camera device that uses two bases and a connector to mount a camera on the display to capture an image of a target object. Background Technology

[0002] Since its invention, projectors have been used in various fields with the development of technology, from consumer products to high-tech products. Their applications are very wide. For example, projectors can be used in large conferences and presentations to magnify the object to be projected, or in commercial projection screens or televisions to present the content of a presentation in real time.

[0003] Among the many types of projectors, document cameras (VFPs) are a relatively convenient projection tool. Users do not need to pre-create electronic image files or documents of the subject matter; they can directly display the subject matter on the projection screen. VFPs primarily work by placing the subject matter within the image capture range of the projector lens, directly displaying the image captured by the lens on the projection screen or computer screen. Therefore, VFPs can effectively reduce the time presentation staff spend preparing presentation materials and can provide real-time updates on changes in the subject matter's status. However, the lens of a document camera is mostly fixed. When the object to be presented is too far away or too large, it is difficult for the presenter to place the object within the image range of the lens, making it impossible to effectively present the state or changes of the object to the audience. Therefore, how to effectively and conveniently control the image capture of the object through innovative hardware design, and how to flexibly move the image capture position, are issues that developers and researchers in the projection device and related industries need to continuously strive to overcome and solve. Summary of the Invention

[0004] In view of this, the inventor has made improvements and invented a document camera device suitable for display screens. The purpose is to provide a document camera device that uses two bases and a connector to mount a camera on the display screen to capture images of a target object. The main hardware design, such as the combination of the two bases and the connector, can effectively mount the camera to capture images of the target object on the display screen of an electronic device. The camera can be wired or wirelessly connected to an electronic device equipped with a remote control via an Arduino Nano transmission device. Users can directly control the camera shutter with the remote control to capture images of the target object and display them on the display screen of the electronic device. This achieves the main advantages of convenient control over image capture of the target object and flexible movement of the captured image position.

[0005] According to the present invention, a document camera device suitable for a display is provided, mounted on the display of an electronic device. The document camera device includes at least a first base, a second base, a connecting member, a base, and an image capturing module. The first base includes a first engaging member and at least two first latches, wherein the first latches engage with the first engaging member, and the display is sandwiched between the first latches. The second base is arranged side-by-side with the first base, and the second base includes a second engaging member and at least two second latches, wherein... The second latch engages with the second latching member, and a display is sandwiched between the second latches; the connecting member is disposed between the first base and the second base; the base includes a rotating seat, a latching member, a supporting member, and a first magnet, the rotating seat is disposed on the third groove of the connecting member, the latching member engages with the rotating seat, the supporting member is disposed on the upper end of the latching member, and the first magnet is embedded in the supporting member; the image capturing module includes a camera and a second magnet disposed on one end of the camera, wherein the camera is assembled on the supporting member by mutual attraction between the second magnet and the first magnet.

[0006] As described above, in the object projection device suitable for a display, the image capturing module can be further electrically connected to an electronic device via a transmission device, and the electronic device can be further connected to a remote control, which controls the shutter operation of the camera of the image capturing module and displays the image captured by the shutter on the display.

[0007] As described above, in a physical projection device suitable for a display, the image capturing module is electrically connected to an electronic device via a transmission device in one of the following ways: wired or wireless.

[0008] In the above-described document projection device for a display, when the image capturing module is electrically connected to the electronic device via a wired connection, the transmission device is an Arduino Nano transmission line.

[0009] The document camera device for display described above, wherein the electronic device is one of a desktop computer, a notebook computer, or a tablet computer.

[0010] As described above, in the document projection device for a display, the upper surface of the first engaging member may be further provided with a first receiving space, and the lower surface is recessed with a first groove. At least one third magnet is disposed in the first receiving space, and the first latch includes a first engaging part that accommodates a fourth magnet and engages with the first groove, and a first support member disposed at the lower end of the first engaging part. The fourth magnet and the third magnet attract each other.

[0011] As described above, in the document projection device for a display, the first accommodating space may be further covered with a first cover plate, and the first engaging portion may be further covered with a second cover plate.

[0012] As described above, in the document projection device for a display, the upper surface of the second engaging member may be further provided with a second receiving space, and the lower surface is recessed with a second groove. At least one fifth magnet is disposed in the second receiving space, and the second latch includes a second engaging part that accommodates a sixth magnet and engages with the second groove, and a second support member disposed at the lower end of the second engaging part. The sixth magnet and the fifth magnet attract each other.

[0013] As described above, in the document projection device for a display, the second receiving space may be further covered with a third cover plate, and the second engaging portion may be further covered with a fourth cover plate.

[0014] As described above, in a document projection device suitable for a display, a fifth cover plate and a sixth cover plate may be further provided on the two ends of the connector near the base, respectively.

[0015] As described above, in a document camera device suitable for a display, the first latch can be further fitted onto the first engaging member.

[0016] As described above, in the document projection device for a display, the upper surface of the first engaging member is provided with a plurality of first openings, and the upper surface of the first latch is provided with a plurality of second openings penetrating the first latch, and a first fixing member is simultaneously inserted through the first openings and the second openings.

[0017] As described above, the document projection device for a display includes a first sub-attachment and a second sub-attachment that docks with the first sub-attachment, and a support includes a first sub-support that connects to the first sub-attachment and a second sub-support that docks with the first sub-support and connects to the second sub-attachment. A first magnet is embedded inside the first sub-support and the second sub-support.

[0018] The document camera device for a display as described above, wherein the second latch can be further fitted onto the second engaging member.

[0019] As described above, in the document projection device for a display, the upper surface of the second engaging member is provided with a plurality of third openings, and the upper surface of the second latch is provided with a plurality of fourth openings penetrating the second latch, and a second fixing member is simultaneously inserted through the third openings and the fourth openings.

[0020] The document camera device for display described above may further include a robotic arm between the connector and the base.

[0021] As described above, the object projection device for a display may further include a set of connecting seats disposed on a connecting member, an upper arm disposed at the other end of the connecting seats relative to the connecting member, a shaft arm disposed at the other end of the upper arm relative to the connecting seat, and a camera arm disposed at the other end of the shaft arm relative to the upper arm, the shaft arm driving the camera arm to reciprocate on the upper arm.

[0022] The document projection device for a display as described above may further include a first sub-connector and a second sub-connector that engages with the first sub-connector.

[0023] Therefore, the document camera of the present invention, which is suitable for display, can effectively mount a camera for capturing images of a target object on the display of an electronic device through hardware design such as the combination of two bases and connectors. The camera can be wired or wirelessly connected to an electronic device equipped with a remote control via an Arduino Nano transmission device. Users can directly control the camera shutter with the remote control to capture images of the target object and display them on the display of the electronic device. This achieves the main advantages of convenient control over image capture of the target object and flexible movement of the captured image position. Attached Figure Description

[0024] Figure 1 This invention relates to a preferred embodiment of a document camera for display, and is connected to an electronic device.

[0025] Figure 2 This invention relates to a preferred embodiment of a document camera device for display screens.

[0026] Figure 3 : An exploded view of the structural configuration of a preferred embodiment of the present invention applicable to a document camera for display.

[0027] Figure 4 : A schematic diagram of the structural configuration of a preferred embodiment of the present invention applicable to a physical projection device for a display.

[0028] Figure 5 : An exploded view of the structural configuration of a preferred embodiment of the document camera device for display according to the present invention.

[0029] Figure 6 The present invention relates to a three-dimensional schematic diagram of the overall structure of a physical projection device for a display screen, and three preferred embodiments thereof.

[0030] Figure 7 The present invention relates to an exploded perspective view of the overall structure of a physical projection device for a display, and three preferred embodiments thereof.

[0031] Figure 8The present invention relates to a physical projection device for a display, and presents a schematic diagram of the overall structure and operation of three preferred embodiments thereof.

[0032] Drawing number explanation:

[0033] 1: Document camera suitable for displays

[0034] 11: First Foundation

[0035] 111: First Card Assembly

[0036] 1111: First storage space

[0037] 1112: First groove

[0038] 1113: The Third Magnet

[0039] 1114: First cover plate

[0040] 1115: First opening

[0041] 112: First latch

[0042] 1121: The Fourth Magnet

[0043] 1122: First Card Section

[0044] 1123: First support component

[0045] 1124: Second cover plate

[0046] 1125: Second opening

[0047] 113: First fastener

[0048] 12: Second base

[0049] 121: Second Card Assembly

[0050] 1211: Second Accommodation Space

[0051] 1212: Second groove

[0052] 1213: The Fifth Magnet

[0053] 1214: Third cover plate

[0054] 1215: Third opening

[0055] 122: Second latch

[0056] 1221: The Sixth Magnet

[0057] 1222: Second Card Section

[0058] 1223: Second support component

[0059] 1224: Fourth cover plate

[0060] 1225: Fourth opening

[0061] 123: Second fastener

[0062] 13: Connector

[0063] 131: Third groove

[0064] 132: Fifth cover plate

[0065] 133: Sixth cover plate

[0066] 14: Base

[0067] 141: Rotary seat

[0068] 142: Card assembly

[0069] 1421: First Sub-card Assembly

[0070] 1422: Second Sub-card Assembly

[0071] 143: Support component

[0072] 1431: First Sub-support

[0073] 1432: Second Sub-support

[0074] 144: The First Magnet

[0075] 15: Image Capture Module

[0076] 151: Camera

[0077] 1511: Shutter

[0078] 16: Robotic Arm

[0079] 161: Connector

[0080] 1611: First Sub-connector

[0081] 1612: Second Sub-connector

[0082] 162: Upper arm

[0083] 163: Axle Arm

[0084] 164: Camera Arm

[0085] 2: Transmission device

[0086] 3: Electronic devices

[0087] 31: Monitor

[0088] 32: Remote control. Detailed Implementation

[0089] First, please refer to Figure 1 The diagram shown illustrates the connection between the document camera device 1, a preferred embodiment of the present invention, and an electronic device. The document camera device 1 is a document camera used to capture an image of a target object (not shown). It is primarily mounted on the display 31 of an electronic device 3 and can be electrically connected to the electronic device 3 via a transmission device 2, either wired or wirelessly. The electronic device 3 is equipped with a remote control 32 and is a desktop computer, laptop computer, or tablet computer, among other devices. In a preferred embodiment, the document camera device 1 is presented via an Arduino Nano transmission line. The transmission device 2 is electrically connected via a wired connection to an electronic device 3 presented as a desktop computer. The display 31 is the LCD screen connected to the desktop computer. A user (not shown in the diagram) can control the shutter 1511 of the camera 151 of the image capturing module 15 through the remote control 32 to capture the image of the target object and display it on the display 31 of the electronic device 3. The document camera 1 of the present invention, which is suitable for display, mainly uses the hardware design of a first base 11, a second base 12 and a connector 13 to effectively mount the camera 151 for capturing the image of the target object on the display 31 of the electronic device 3, and can be used with Arduino. Nano transmission device 2 connects the camera 151 to the electronic device 3 equipped with the remote control 32 via wired or wireless electrical connection. The user can use the remote control 32 to directly control the shutter 1511 of the camera 151 to capture the image of the target object, and display it on the display 31 of the electronic device 3. This achieves the main advantages of convenient control over the capture of the target object and flexible movement of the captured image position.

[0090] Please refer to the following: Figure 2 and Figure 3 The diagram shown is a schematic diagram of the structural configuration of a preferred embodiment of the document projection device for a display according to the present invention, as well as an exploded view of the structural configuration. The document projection device 1 for a display according to the present invention is composed of at least a first base 11, a second base 12, a connector 13, a base 14, and an image capturing module 15.

[0091] The first base 11 is composed of at least one first engaging member 111 and two first latches 112, wherein the first latches 112 are arranged side by side and respectively engaging the lower end of the first engaging member 111, and the first latches 112 and the first engaging member 111 form an "inverted U-shape" to clamp the upper end of the LCD display of the desktop computer.

[0092] Furthermore, the first engaging member 111 has a first receiving space 1111 on its upper surface and a first groove 1112 recessed on its lower surface. Two third magnets 1113 are disposed within the first receiving space 1111. The first latch 112 includes a first engaging portion 1122 that receives a fourth magnet 1121 and engages with the first groove 1112, and a first support member 1123 disposed at the lower end of the first engaging portion 1122. The first receiving space 1111 is covered by a first cover. The first locking part 1122 is covered by a second cover plate 1124 to prevent the third magnet 1113 and the fourth magnet 1121 from falling out. When the first locking part 1122 is engaged in the first groove 1112, the fourth magnet 1121 embedded in the first locking part 1122 and the third magnet 1113 embedded in the first accommodating space 1111 attract each other, so that the first base 11 forms an "inverted U-shape" to clamp the upper end of the LCD screen of the desktop computer.

[0093] The second base 12 is arranged side by side with the first base 11. The second base 12 is composed of at least one second engaging member 121 and two second latches 122. The second latches 122 are arranged side by side and respectively engage with the lower end of the second engaging member 121. The second latches 122 and the second engaging member 121 are the same as the first base 11 and form an inverted U-shape to clamp the upper end of the LCD screen of the desktop computer.

[0094] Furthermore, the upper surface of the second engaging member 121 has a second receiving space 1211, and the lower surface has a second recess 1212. The second fifth magnet 1213 is disposed in the second receiving space 1211. The second latch 122 includes a second engaging part 1222 that accommodates a sixth magnet 1221 and engages with the second recess 1212, and a second support member 1223 disposed at the lower end of the second engaging part 1222. The second receiving space 1211 is covered by a third cover. The second locking part 1222 is covered by a fourth cover plate 1224 to prevent the fifth magnet 1213 and the sixth magnet 1221 from falling out. When the second locking part 1222 is engaged in the second groove 1212, the sixth magnet 1221 embedded in the second locking part 1222 and the fifth magnet 1213 embedded in the second accommodating space 1211 attract each other, so that the second base 12 forms an "inverted U-shape" to clamp the upper end of the LCD display of the desktop computer.

[0095] The connector 13 is disposed between the first base 11 and the second base 12. That is, the two ends of the connector 13 are respectively locked to the first base 11 and the second base 12 to serve as a bridge connecting the first base 11 and the second base 12. When the first base 11 and the second base 12 are clamped on the display 31 of the electronic device 3, the connector 13 is also located on the display 31. The connector 13 may or may not contact the display 31.

[0096] The base 14 is composed of at least a rotating seat 141, a locking member 142, a support member 143, and a first magnet 144. The rotating seat 141 is disposed on the third groove 131 of the locking member 13, and the locking member 13 is respectively covered with a fifth cover plate 132 and a sixth cover plate 133 at its two ends near the rotating seat 141 to prevent the rotating seat 141 from falling off. The locking member 142 is engaged with the rotating seat 141, and the support member 143 is disposed at the upper end of the locking member 142. The first magnet 144... The first magnet 144 is embedded in the support member 143. That is, the snap-fit ​​member 142 includes a first snap-fit ​​member 1421 and a second snap-fit ​​member 1422 that docks with the first snap-fit ​​member 1421. The support member 143 includes a first sub-support member 1431 that connects with the first snap-fit ​​member 1421 and a second sub-support member 1432 that docks with the first sub-support member 1431 and connects with the second snap-fit ​​member 1422. The first magnet 144 is embedded inside the first sub-support member 1431 and the second sub-support member 1432.

[0097] The image capturing module 15 includes a camera 151 and a second magnet (not shown) disposed at one end of the camera 151, wherein the camera 151 is assembled on the support member 143 of the base 14 by means of mutual attraction between the second magnet and the first magnet 144 of the base 14 (see reference). Figure 7 (As shown); the user can adjust the position or angle of the support 143 to adjust the angle of the camera 151 of the image capturing module 15, and then use the remote control 32 to control the operation of the shutter 1511 of the camera 151 of the image capturing module 15 to capture the image of the target and display the image on the display 31 of the electronic device 3.

[0098] In addition, please refer to the following: Figure 4 and Figure 5 The diagram shown is a schematic diagram of the structure of a physical projection device for a display according to the present invention, and an exploded view of the structure. The physical projection device 1 for a display in the second preferred embodiment is similar to that in the first preferred embodiment, except that the connection between the connector 13 and the first base 11 and the second base 12 is different.

[0099] The two first latches 112 are arranged side by side and respectively fitted onto the first engaging member 111. The upper surface of the first engaging member 111 has several first openings 1115, while the upper surface of each first latch 112 has a second opening 1125 that penetrates it. Two first fixing members 113 are simultaneously inserted through the first opening 1115 and the second opening 1125 to fix the two first latches 112 onto the first engaging member 111. The user can adjust the distance between the two first latches 112 according to the width of the display 31. Furthermore, the two second latches 122 are also fitted onto the second engaging member 111. On the 21, the upper surface of the second latching member 121 is provided with a plurality of third openings 1215, and the upper surface of the second latch 122 is provided with a fourth opening 1225 that passes through the second latch 122. The two second fixing members 123 are simultaneously inserted through the third openings 1215 and the fourth openings 1225 to fix the two second latches 122 onto the second latching member 121 respectively. The user can adjust the distance between the two second latches 122 according to the width of the display 31, wherein the distance between the first openings 1115 and the first latching member 111 is equal to the distance between the second openings 1125 and the second latching member 121.

[0100] Furthermore, please refer to the following: Figure 6 and Figure 7 The diagram shows a three-dimensional perspective view and an exploded perspective view of the overall structure of a document camera device applicable to a display screen according to three preferred embodiments of the present invention. A robotic arm 16 is disposed between the connector 13 and the base 14. The robotic arm 16 is composed of at least a connecting seat 161, an upper arm 162, a shaft arm 163, and a camera arm 164. The connecting seat 161 is assembled on the connector 13 and is composed of at least a first sub-connecting seat 1611 and a second sub-connecting seat 161. The two parts are joined together to cover the connecting seat 161. The upper arm 162 is disposed at the other end of the connecting seat 161 relative to the connecting member 13 and contacts the connecting seat 161. The shaft arm 163 is disposed at the other end of the upper arm 162 relative to the connecting seat 161. The camera arm 164 is disposed at the other end of the shaft arm 163 relative to the upper arm 162 and is connected to the base 14. The shaft arm 163 drives the camera arm 164 to swing back and forth on the upper arm 162.

[0101] In other words, please refer to both. Figure 8The diagram shown is a schematic diagram of the overall structure and operation of a preferred embodiment of the document projection device of the present invention applicable to a display. When the camera 151 of the image capturing module 15 is mounted on the base 14, it is connected to the camera arm 164. The camera arm 164 is then connected to the shaft arm 163, which can swing back and forth on the upper arm 162. The shaft arm 163 is then mounted on the upper arm 162 and the connecting seat 161. Since the shaft arm 163 can swing back and forth on the upper arm 162, the camera 151 of the image capturing module 15 can also swing back and forth to adjust to a suitable position for capturing images of the target object.

[0102] As can be seen from the above description, the document projection device of the present invention, compared with the prior art and products, has the following advantages:

[0103] The document projection device of the present invention, applicable to a display, mainly utilizes a hardware design such as the combination of two bases and connectors to effectively mount a camera for capturing images of a target object on the display of an electronic device. The camera can be wired or wirelessly connected to an electronic device equipped with a remote control via an Arduino Nano transmission device. Users can then directly control the camera's shutter with the remote control to capture images of the target object and display them on the display of the electronic device. This effectively achieves the main advantages of convenient control over image capture of the target object and flexible movement of the captured image position.

Claims

1. A document camera suitable for display screens, characterized in that, Mounted on a display (31) of an electronic device (3), the document camera (1) suitable for the display includes at least: A first base (11) includes a first engaging member (111) and two first latches (112); the first engaging member (111) has a first receiving space (1111) on its upper surface and a first groove (1112) recessed on its lower surface, and at least one third magnet (1113) is disposed in the first receiving space (1111); each of the two first latches (112) includes a fourth magnet (1121) that is received and engaged with the first groove (111). 2) The first engaging part (1122) and a first support member (1123) disposed at the lower end of the first engaging part (1122), the fourth magnet (1121) and the third magnet (1113) attract each other, so that the two first latches (112) are arranged side by side and respectively engaged at the lower end of the first engaging member (111), and the two first latches (112) and the first engaging member (111) together form an inverted U-shaped structure to clamp the upper end of the display (31); A second base (12) is arranged side by side with the first base (11). The second base (12) includes a second engaging member (121) and two second latches (122). The upper surface of the second engaging member (121) has a second receiving space (1211), and the lower surface has a second recess (1212). At least one fifth magnet (1213) is disposed in the second receiving space (1211). Each of the two second latches (122) includes a space for receiving a sixth magnet (1221) and The second engaging part (1222) engages with the second groove (1212), and a second support member (1223) is provided at the lower end of the second engaging part (1222). The sixth magnet (1221) and the fifth magnet (1213) attract each other, so that the two second latches (122) are arranged side by side and respectively engage with the lower end of the second engaging member (121). The two second latches (122) and the second engaging member (121) together form an inverted U-shaped structure to clamp the upper end of the display (31). A connector (13) is disposed between the first base (11) and the second base (12). The two ends of the connector (13) are respectively locked to the first base (11) and the second base (12) to connect the first base (11) and the second base (12). A third groove (131) is recessed on the connector (13). A base (14) includes a rotating seat (141), a locking member (142), a support member (143), and a first magnet (144). The rotating seat (141) is disposed on the third groove (131) of the connecting member (13), the locking member (142) is engaged with the rotating seat (141), the support member (143) is disposed at the upper end of the locking member (142), and the first magnet (144) is embedded in the support member (143). An image capturing module (15) includes a camera (151) and a second magnet disposed at one end of the camera (151), wherein the camera (151) is assembled on the support member (143) by the second magnet and the first magnet (144) attracting each other.

2. The document camera device for a display as described in claim 1, characterized in that, The image capturing module (15) is further electrically connected to the electronic device (3) via a transmission device (2), and the electronic device (3) is further connected to a remote control (32). The remote control (32) controls the operation of a shutter (1511) of the camera (151) of the image capturing module (15) and displays the image captured by the shutter (1511) on the display (31).

3. The document camera device for display as described in claim 2, characterized in that, The image capturing module (15) is electrically connected to the electronic device (3) via the transmission device (2) in either a wired or wireless manner.

4. The document camera device for a display as described in claim 3, characterized in that, When the image capturing module (15) is electrically connected to the electronic device (3) via a wired connection, the transmission device (2) is an Arduino Nano transmission line.

5. The document camera device for a display as described in claim 2, characterized in that, The electronic device (3) is one of a desktop computer, a notebook computer or a tablet computer.

6. The document camera device for a display as described in claim 1, characterized in that, The first accommodating space (1111) is further covered by a first cover plate (1114), and the two first engaging portions (1122) are further covered by a second cover plate (1124).

7. The document camera device for a display as described in claim 1, characterized in that, The second accommodating space (1211) is further covered by a third cover plate (1214), and the two second engaging portions (1222) are further covered by a fourth cover plate (1224).

8. The document camera device for a display as described in claim 1, characterized in that, The connector (13) is further covered with a fifth cover plate (132) and a sixth cover plate (133) at its two ends near the base (14).

9. The document camera device for a display as described in claim 1, characterized in that, The latching member (142) includes a first latching member (1421) and a second latching member (1422) that docks with the first latching member (1421). The support member (143) includes a first sub-support member (1431) that connects with the first latching member (1421) and a second sub-support member (1432) that docks with the first sub-support member (1431) and connects with the second latching member (1422). The first magnet (144) is embedded inside the first sub-support member (1431) and the second sub-support member (1432).

10. The document camera device for a display as described in claim 1, characterized in that, The first tenon (112) is further fitted onto the first engaging member (111).

11. The document camera device for a display as described in claim 10, characterized in that, The first latching member (111) has several first openings (1115) on its upper surface, and each of the two first latches (112) has a second opening (1125) that penetrates the first latch (112) on its upper surface. The two first fixing members (113) are respectively inserted into the first opening (1115) and the corresponding second opening (1125).

12. The document camera device for a display as described in claim 1, characterized in that, The second latch (122) is further fitted onto the second locking member (121).

13. The document camera device for a display as described in claim 12, characterized in that, The upper surface of the second fastener (121) is provided with a number of third openings (1215), and the upper surface of each of the two second fasteners (122) is provided with a fourth opening (1225) that passes through the second fastener (122). The two second fasteners (123) are respectively inserted through the third openings (1215) and the corresponding fourth openings (1225).

14. The document camera device for a display as described in claim 1, characterized in that, A robotic arm (16) is further provided between the connector (13) and the base (14).

15. The document camera device for a display as described in claim 14, characterized in that, The robotic arm (16) further includes a set of connecting seats (161) disposed on the connecting member (13), an upper arm (162) disposed at the other end of the connecting seat (161) relative to the connecting member (13), a shaft arm (163) disposed at the other end of the upper arm arm (162) relative to the connecting seat (161), and a camera arm (164) disposed at the other end of the shaft arm (163) relative to the upper arm arm (162). The shaft arm (163) drives the camera arm (164) to swing back and forth on the upper arm arm (162).

16. The document camera device for a display as described in claim 15, characterized in that, The connector (161) further includes a first sub-connector (1611) and a second sub-connector (1612) that engages with the first sub-connector (1611).

Images