imaging device

Abstract

This invention discloses an imaging device, comprising an imaging module and a mounting base. The imaging module includes a housing, a flat lens, a display, and a first slip ring. The flat lens has a first side and a second side, with the display located on the first side. Light emitted from the display passes through the flat lens on the second side to form a floating real image. The first slip ring is located at the bottom of the housing, and the display is connected to an external power source via the first slip ring. The imaging module is rotatably mounted on the mounting base. A second slip ring is provided on the surface of the mounting base facing the imaging module. When the imaging module is mounted on the mounting base, the second slip ring contacts the first slip ring to achieve electrical connection. The second slip ring is adapted to be electrically connected to an external power source. Thus, the imaging module is rotatable relative to the mounting base, allowing it to be used independently or in conjunction with the mounting base. When in conjunction with the mounting base, the imaging module can rotate 360° relative to the mounting base and can stop at any angle, facilitating user observation of the floating real image.

Description

Technical Field

[0001] This invention relates to the field of aerial imaging technology, and in particular to an imaging device. Background Technology

[0002] In existing technologies, aerial imaging devices are generally fixed in place, with a fixed display area and orientation, allowing users to observe and use them only from a fixed direction and position. To better showcase the aerial imaging effect to customers from all angles, displays are needed for each different angle, resulting in a large number of displays, inconvenient operation, and increased costs for the imaging device. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an imaging device that is rotatable, and the formed floating real image can be easily viewed from multiple angles.

[0004] An imaging device according to an embodiment of the present invention includes: an imaging module and a mounting base. The imaging module includes a housing, a flat lens, a display, and a first slip ring. The flat lens and the display are disposed within the housing. The two sides of the flat lens in the thickness direction are respectively a first side and a second side. The display is located on the first side. Light emitted from the display passes through the flat lens to form a floating real image on the second side. The first slip ring is disposed at the bottom of the housing and is electrically connected to the display. The first slip ring is adapted to be electrically connected to an external power source. The imaging module is rotatably mounted on the mounting base and detachably connected to the mounting base. A second slip ring is provided on the surface of the mounting base facing the imaging module. When the imaging module is mounted on the mounting base, the second slip ring contacts the first slip ring to achieve electrical connection. The second slip ring is adapted to be electrically connected to an external power source.

[0005] According to the imaging device of the present invention, the imaging module cooperates with the mounting base, and the imaging module is rotatable relative to the mounting base, so that the imaging module can be used alone or in conjunction with the mounting base. When in conjunction with the mounting base, the imaging module rotates 360° relative to the mounting base and can stop at any angle, which makes it convenient for users to observe the floating image. It reduces the manufacturing difficulty and time of the imaging device to meet the display requirements of different angles, so that users can display the content of the floating image from all angles. The operation is simple and effectively reduces the production cost of the imaging device.

[0006] In some embodiments, the imaging device further includes: a rotating shaft, one end of which is rotatably fitted on the mounting base about the central axis of the rotating shaft, and the other end of which is fitted with the imaging module so that the rotating shaft rotates as the imaging module rotates.

[0007] In some embodiments, the mounting base is provided with a rotation damper, the rotation damper including a body and a rotating body, the body being fixed on the mounting base and having a mounting hole formed thereon, the rotating body being rotatably disposed within the mounting hole and having a mating hole formed thereon, one end of the rotating shaft being fitted into the mating hole so that the rotating body rotates with the rotation of the rotating shaft.

[0008] In some embodiments, the outer peripheral surface of the rotating shaft is a non-circular surface, and the imaging module has a limiting hole that mates with the other end of the rotating shaft. The limiting hole and the mating hole are respectively adapted to the shape of the rotating shaft.

[0009] In some embodiments, one end of the rotating shaft is provided with two retaining rings, which are respectively located on both sides of the rotating body along the axial direction of the rotating shaft.

[0010] In some embodiments, the housing includes: a shell, a transparent element, and a chassis. The top and bottom of the shell are open. The transparent element is disposed at the top of the shell. The chassis is disposed at the bottom of the shell. The chassis, the transparent element, and the shell together define a receiving cavity. The flat panel lens and the display are disposed within the receiving cavity. The display is located below the flat panel lens. The first slip ring is disposed on the chassis. The mounting base is disposed below the chassis.

[0011] In some embodiments, the chassis is provided with at least one rolling device, the rolling device including a rolling element that is rotatable on the side surface of the mounting base facing the imaging module.

[0012] In some embodiments, a through hole is formed on the chassis, extending along the thickness direction of the chassis. The rolling element is a bearing, a portion of which passes through the through hole and contacts the side surface of the mounting base facing the imaging module. The rolling device further includes a bearing housing and a bearing shaft. The bearing housing is disposed on the chassis and located within the receiving cavity. The bearing shaft passes through the bearing and mounts the bearing on the bearing housing.

[0013] In some embodiments, a groove is formed on one side surface of the mounting base adjacent to the imaging module, the groove extending circumferentially along the rotation axis, and the rolling element is rotatably engaged within the groove.

[0014] In some embodiments, there are multiple rolling devices, which are arranged circumferentially at intervals along the rotation axis.

[0015] In some embodiments, at least one handle is provided on the outer surface of the housing, and pulling the handle causes the imaging module to rotate relative to the mounting base.

[0016] In some embodiments, the imaging module further includes: a control board and an interactive sensor. The control board is disposed inside the housing and communicates with the display. The control board is electrically connected to the first slip ring. The interactive sensor communicates with the control board and is located on the second side. The angle between the interactive sensor and the display is equal to the angle between the interactive sensor and the floating real image.

[0017] In some embodiments, at least one speaker is provided inside the housing, the speaker communicates with the control board, and a sound outlet is formed at a position of the housing opposite to the speaker.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of an imaging apparatus according to an embodiment of the present invention.

[0021] Figure 2 This is a three-dimensional split diagram of an imaging device according to an embodiment of the present invention.

[0022] Figure 3 Is it like this? Figure 2 Enlarged view of section P in the middle.

[0023] Figure 4 This is a partially three-dimensional split-off schematic diagram of an imaging device according to an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of a rotary damper according to an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of a rotating shaft according to an embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of a flat plate lens according to an embodiment of the present invention.

[0027] Figure 8 This is a three-dimensional split diagram of a flat lens according to an embodiment of the present invention.

[0028] Figure 9 This is a schematic diagram of a first optical waveguide array and a second optical waveguide array according to an embodiment of the present invention.

[0029] Figure 10 This is a schematic diagram of the imaging process using a flat lens according to an embodiment of the present invention.

[0030] Figure 11 This is a schematic diagram of the optical path of light in a flat lens according to an embodiment of the present invention.

[0031] Figure label:

[0032] Imaging device 100;

[0033] Imaging module 1;

[0034] 11. Outer shell; 111. Transparent part; 112. Chassis; 113. Limiting hole; 1131. Through hole; 1132. Receiving cavity; 114. Rolling device; 115. Rolling part; 1151. Bearing seat; 1152. Bearing shaft; 1153. Handle; 116. Sound outlet hole; 117.

[0035] Planar lens 12; First side 121; Second side 122; First optical waveguide array 123; Sub-waveguide 1231; Second optical waveguide array 124; Protective film 125;

[0036] Monitor 13;

[0037] First slip ring 14;

[0038] Rotating shaft 15; snap ring 151; first slot 152; second slot 153;

[0039] 16 Control board; 17 Interactive sensor; 18 Speaker; 19 Floating real image;

[0040] Mounting base 2; second slip ring 21; rotation damper 22; body 221; mounting hole 2211; rotating body 222; mating hole 2221; groove 23. Detailed Implementation

[0041] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-11 An imaging device 100 according to an embodiment of the present invention is described. The imaging device 100 includes an imaging module 1 and a mounting base 2. The imaging module 1 includes a housing 11, a flat lens 12, a display 13, and a first slip ring 14.

[0042] Specifically, such as Figures 1-4As shown, the flat lens 12 and the display 13 are disposed inside the housing 11. The two sides of the flat lens 12 in the thickness direction are a first side 121 and a second side 122, respectively. The display 13 is located on the first side 121. The light emitted by the display 13 passes through the flat lens 12 on the second side 122 to form a floating real image 19. The angle between the floating real image 19 and the flat lens 12 is the same as the angle between the flat lens 12 and the display 13, and the floating real image 19 and the display 13 are symmetrically distributed about the plane where the flat lens 12 is located. The first slip ring 14 is disposed at the bottom of the housing 11. The first slip ring 14 is electrically connected to the display 13 and is adapted to be electrically connected to an external power source so that the display 13 can be connected to an external power source through the first slip ring 14. The imaging module 1 is rotatably mounted on the mounting base 2 and is detachably connected to the mounting base 2. A second slip ring 21 is provided on the side surface of the mounting base 2 facing the imaging module 1. When the imaging module 1 is mounted on the mounting base 2, the second slip ring 21 contacts the first slip ring 14 to achieve electrical connection. The second slip ring 21 is suitable for electrical connection with an external power source.

[0043] For example, when the imaging module 1 is used alone, it can have a separate power cord. This power cord can be located at the bottom of the imaging module 1, for example, with a mounting groove (not shown in the figure) on the bottom. This mounting groove facilitates the adaptation of the power cord, preventing the imaging module 1 from being placed unevenly due to the bottom-mounted power cord, thus increasing stability while ensuring electrical connection. When the imaging module 1 is used in conjunction with the mounting base 2, the power cord on the imaging module 1 can be hidden within the mounting groove, preventing the power cord from interfering with the assembly of the imaging module 1 and the mounting base 2. In this case, the first slip ring 14 on the imaging module 1 contacts the second slip ring 21 on the mounting base 2, and the second slip ring 21 connects to the power cord on the mounting base 2. The power cord is then led out to connect to an external power source, thereby energizing the imaging module 1.

[0044] According to the imaging device 100 of the present invention, the imaging module 1 cooperates with the mounting base 2, and the imaging module 1 is rotatable relative to the mounting base 2, so that the imaging module 1 can be used alone or in cooperation with the mounting base 2. When in cooperation with the mounting base 2, the imaging module 1 rotates in a 360° direction relative to the mounting base 2 and can stop at any angle, which makes it convenient for users to observe the floating real image 19, reduces the manufacturing difficulty and time of the imaging device 100 to meet the display requirements of different angles, and allows users to view the content of the floating real image 19 from all angles. The operation is simple and effectively reduces the production cost of the imaging device 100.

[0045] Furthermore, such as Figure 4 and Figure 6As shown, the imaging device 100 includes a rotating shaft 15, one end of which is rotatably fitted onto a mounting base 2 about its central axis, and the other end of which is fitted onto an imaging module 1 so that the rotating shaft 15 rotates with the imaging module 1. The rotating shaft 15 connects the imaging module 1 and the mounting base 2 and is rotatable relative to the mounting base 2. Therefore, by setting the rotating shaft 15 such that one end is fixed relative to the imaging module 1 and the other end rotates relative to the mounting base 2, the rotation of the imaging module 1 relative to the mounting base 2 is simple, has good reliability, and can be manufactured at a lower cost.

[0046] In some embodiments, such as Figure 4 and Figure 5 As shown, the mounting base 2 is equipped with a rotation damper 22, which includes a body 221 and a rotating body 222. The body 221 is fixed to the mounting base 2 and has a mounting hole 2211. The rotating body 222 is rotatably disposed within the mounting hole 2211 and has a mating hole 2221. One end of the rotating shaft 15 is fitted into the mating hole 2221 so that the rotating body 222 rotates with the rotation of the rotating shaft 15. The body 221 can be connected to the mounting base 2 at the end away from the imaging module 1, and the connection can be fastened with bolts. The rotating shaft 15 and the rotating body 222 cooperate to rotate around the body 221. The rotating body 222 can be a bearing. Thus, the mounting base 2 is equipped with a rotation damper 22, the rotating body 222 is rotatable relative to the body 221, and the rotating body 222 cooperates with the rotating shaft 15, thereby achieving a simple rotation of the rotating shaft 15 relative to the mounting base 2, and the rotation stability and reliability are high.

[0047] In some embodiments, combined with Figure 2 The outer peripheral surface of the rotating shaft 15 is non-circular. The imaging module 1 has a limiting hole 1131 that mates with the other end of the rotating shaft 15. The limiting hole 1131 and the mating hole 2221 are respectively adapted to the shape of the rotating shaft 15. For example, the rotating shaft 15 can be a polygonal prism. The shapes of the limiting hole 1131 and the mating hole 2221 are the same as the cross-sectional shape of the prism. After the prism mates with the limiting hole 1131 and the mating hole 2221, the imaging module 1 with the limiting hole 1131 and the rotating body 222 with the mating hole 2221 rotate together with the prism. Thus, the non-circular outer peripheral surface of the rotating shaft 15 can effectively prevent relative rotation between the rotating shaft 15 and the imaging module 1 or the rotating body 222 of the mounting base 2, increasing the convenience of the imaging module 1 rotating relative to the mounting base 2, and making the rotating structure simpler.

[0048] Optionally, such as Figure 4 and Figure 6As shown, two retaining springs 151 are provided at one end of the rotating shaft 15 near the mounting base 2. The two retaining springs 151 are located on both sides of the rotating body 222 along the axial direction of the rotating shaft 15. The rotating shaft 15 is provided with a first retaining groove 152 and a second retaining groove 153 that cooperate with the two retaining springs 151. The first retaining groove 152 is located on the outer circumferential surface of the rotating shaft 15, and the second retaining groove 153 is located at the end of the rotating shaft 15 near the mounting base 2. The retaining springs 151 have a certain elastic deformation capability and can cooperate with the retaining grooves. Thus, by providing two retaining springs 151 at one end of the rotating shaft 15 near the mounting base 2, and the retaining springs 151 being located on both sides of the rotating body 222 along its central axis, the two retaining springs 151 can limit the movement of the rotating shaft 15 in the axial direction, and facilitate the retaining springs 151 to limit the rotation of the rotating shaft 15, so as to facilitate the installation of the rotating shaft 15 on the mounting base 2 and prevent the rotating shaft 15 from falling out of the mounting base 2.

[0049] In some embodiments, refer to Figure 2 The outer casing 11 includes: a housing 111, a transparent element 112, and a base 113. The top and bottom of the housing 111 are open. The transparent element 112 is located at the top of the housing 111, and the base 113 is located at the bottom of the housing 111. The base 113, the transparent element 112, and the housing 111 together define a receiving cavity 114. The flat lens 12 and the display 13 are located within the receiving cavity 114. The display 13 is located below the flat lens 12, and the transparent element 112 is located above the flat lens 12. The transparent element 112 and the flat lens 12 are arranged parallel to the base. The angle between the display 13 and the flat lens 12 can be 45°, but is not limited to this. It can be set according to the angle suitable for the user to observe the floating real image 19. A first slip ring 14 is located on the base 113, and a mounting base 2 is located below the base 113. The base 113 and the mounting base 2 cooperate with each other. The light emitted from the display 13 is reflected by the flat lens 12, forming a floating real image 19 on the side of the flat lens 12 away from the display 13. At this time, the angle between the floating real image 19 and the display 13 can be 90°. Thus, the housing 11 defines a receiving cavity 114, which facilitates the installation of the flat lens 12 and the display 13, increases the protection of the flat lens 12 and the display 13 inside the housing 11, and at the same time, the closed receiving cavity 114 can provide a dark environment for the propagation of light between the display 13 and the flat lens 12, avoiding the influence of interfering light formed in the receiving cavity 114 on the imaging quality of the formed floating real image 19.

[0050] Furthermore, combined Figure 2 and Figure 3The chassis 113 is provided with at least one rolling device 115, which includes a rolling element 1151 that can roll on the surface of the mounting base 2 facing the imaging module 1. The rolling device 115 is located on the side of the chassis 113 away from the mounting base 2, and at least a portion of the rolling element 1151 passes through the chassis 113 and is located on the side of the chassis 113 adjacent to the mounting base 2, and can roll on the mounting base 2. Thus, by providing the rolling device 115 on the chassis 113, the imaging module 1 can rotate relative to the mounting base 2 about the central axis of the rotation axis 15, reducing the friction between the imaging module 1 and the mounting base 2.

[0051] Optionally, such as Figure 3 As shown, a through hole 1132 extending along the thickness direction of the chassis 113 is formed on the chassis 113. The rolling element 1151 is a bearing, a portion of which passes through the through hole 1132 and contacts the surface of the mounting base 2 facing the imaging module 1. The rolling device 115 also includes a bearing housing 1152 and a bearing shaft 1153. The bearing housing 1152 is located on the side of the chassis 113 away from the mounting base 2 and is situated within the receiving cavity 114. The bearing shaft 1153 passes through the bearing and mounts the bearing on the bearing housing 1152, allowing the bearing to roll relative to the bearing shaft 1153. The rolling element 1151 can be a roller, which can rotate relative to the bearing housing 1152. Thus, by providing a through hole 1132 on the chassis 113, the bearing can easily pass through the chassis 113 and contact the mounting base 2, enabling it to roll on the mounting base 2. The rolling device 115 has a simple structure, good reliability, and low cost, which can increase the service life of the imaging module 1.

[0052] In some embodiments, refer to Figure 4 A groove 23 is formed on one side surface of the mounting base 2 adjacent to the imaging module 1. The groove 23 extends circumferentially along the rotation axis 15, and the rolling element 1151 is rotatably engaged within the groove 23. When the imaging module 1 and the mounting base 2 are engaged, the rolling element 1151 on the imaging module 1 engages with the groove 23 on the mounting base 2. Under the action of external force, the imaging module 1 can rotate along the extension direction of the groove 23. Thus, by providing the groove 23 on the mounting base 2 to engage the rolling element 1151 with the groove 23, the guiding and precision of the rolling of the rolling element 1151 is increased, and the rolling element 1151 is limited, thereby improving the reliability of the engagement between the imaging module 1 and the mounting base 2.

[0053] In some embodiments of the present invention, there are multiple rolling devices 115, which are arranged at circumferential intervals along the rotation axis 15. The number of rolling devices 115 can be three or more, with the three rolling devices 115 evenly distributed along the chassis 113. Thus, by providing multiple rolling devices 115 on the chassis 113, support for the imaging module 1 can be formed, increasing the stability of the imaging module 1 after it mates with the mounting base 2, and facilitating the rotation of the imaging module 1 on the mounting base 2.

[0054] In some embodiments, refer to Figure 2 At least one handle 116 is provided on the outer surface of the housing 11. Pulling the handle 116 causes the imaging module 1 to rotate relative to the mounting base 2. There can be two handles 116, symmetrically arranged on the outer peripheral surface of the imaging module 1. The handles 116 can be fixed to the outer peripheral surface or hidden within it. For example, if the handle 116 is hidden within the outer peripheral surface, it can be popped out by pressing one end, allowing the user to apply force to the handle 116 and rotate the housing 11 relative to the mounting base 2. Therefore, providing handles 116 on the housing 11 of the imaging module 1 facilitates the user applying force to the housing 11, facilitates the rotation of the imaging module 1 relative to the mounting base 2, and provides a point of force application during handling.

[0055] In some embodiments, combined with Figure 2The imaging module 1 also includes a control board 16 and an interactive sensor 17. The control board 16 is located inside the housing 11 and communicates with the display 13. The control board 16 is electrically connected to the first slip ring 14. The interactive sensor 17 communicates with the control board 16 and is located on the second side 122. The angle between the interactive sensor 17 and the display 13 is equal to the angle between the interactive sensor 17 and the floating real image 19. That is, the large surface of the interactive sensor 17 (the largest surface among the several surfaces of the interactive sensor 17) is parallel to the floating real image 19. Both the control board 16 and the interactive sensor 17 are located inside the receiving cavity 114. The interactive sensor 17 can be fixed in the receiving cavity 114 by adhesive or screw fastening. The control board 16 is fixedly connected to the housing 11 by fasteners, and the control board 16 is electrically connected to both the display 13 and the first slip ring 14. When the first slip ring 14 is powered on, the control board 16 controls the operation of the display 13 and can receive signals from the interactive sensor 17 to perform corresponding operations. For example, the light emitted by the interactive sensor 17 overlaps with the area covered by the floating real image 19. When the user touches the corresponding button on the floating real image 19, the interactive sensor 17 can receive the corresponding signal and feed it back to the control board 16. The control board 16 processes the signal and generates a corresponding control signal to control the display 13 to display the corresponding page. The parallel arrangement of the interactive sensor 17 allows the user to touch the floating real image 19 more accurately, avoiding the possibility of misoperation. Thus, the control board 16 and the interactive sensor 17 can easily control the display 13 to form different floating real images 19, enabling the imaging device 100 to achieve real-time interactive functions and improving the intelligence of the imaging device 100.

[0056] In some embodiments, such as Figure 2 As shown, at least one speaker 18 is provided inside the housing 11. The speaker 18 communicates with the control board 16, and a sound outlet 117 is formed at the position opposite to the speaker 18 on the housing 11. Thus, the sound outlet 117 is provided on the housing 11 to facilitate the speaker 18 and the sound outlet 117 to be opposite each other to realize the sound amplification and increase the clarity of the sound.

[0057] The following is combined Figure 7-11 The imaging principle of forming a floating real image using a flat lens is described in detail:

[0058] like Figures 7-10As shown, the flat plate lens 12 includes two sets of optical waveguide arrays. Each set of optical waveguide arrays consists of multiple rows of sub-waveguides 1231 with a rectangular cross-section. The two sets of optical waveguide arrays include a first optical waveguide array 123 and a second optical waveguide array 124. The sub-waveguides 1231 of the first optical waveguide array 123 extend along the X direction and form multiple rows along the Y direction. The sub-waveguides 1231 of the second optical waveguide array 124 extend along the Y direction and form multiple rows along the X direction. The first optical waveguide array 123 and the second optical waveguide array 124 are arranged along the Z direction. The X, Y, and Z directions are perpendicular to each other. The flat plate lens 12 has a central normal line that passes through the center of the flat plate lens 12 and is parallel to the Z direction. The two opposite sides of the flat plate lens 12 along the thickness direction are the image source side and the floating real image 19 side, respectively.

[0059] Here, the extension direction of sub-waveguide 1231 is its length direction. The length direction of a single sub-waveguide 1231 in the first optical waveguide array 123 is the X direction, and multiple sub-waveguides 1231 of the first optical waveguide array 123 are closely stacked and arranged along the Y direction, with the width direction of a single sub-waveguide 1231 being the Y direction. Similarly, the length direction of a single sub-waveguide 1231 in the second optical waveguide array 124 is the Y direction, and multiple sub-waveguides 1231 of the second optical waveguide array 124 are closely stacked and arranged along the X direction, with the width direction of a single sub-waveguide 1231 being the X direction. Both sets of optical waveguide arrays are planar, and the arrangement direction from the first optical waveguide array 123 to the second optical waveguide array 124 is the Z direction, which is also the thickness direction of the planar lens 12. It should be noted that in the first optical waveguide array 123 and the second optical waveguide array 124, the first optical waveguide array 123 can be positioned adjacent to the image source side, or the second optical waveguide array 124 can be positioned adjacent to the image source side; there is no restriction here. The length directions of the two sub-waveguides 1231 are perpendicular to each other, therefore the two optical waveguide arrays are said to be mutually orthogonal.

[0060] Combination Figure 9 and Figure 11 The two sets of optical waveguide arrays are perpendicular to each other in their arrangement direction, which can modulate the image on the display 13. When light rays from any direction on the display 13 pass through the two sets of orthogonal optical waveguide arrays, they re-converge on the other side of the flat lens 12 (the side of the display 13 opposite to the flat lens 12) to form a floating real image 19. The imaging distance of the floating real image 19 is the same as the distance from the image source to the flat lens 12. It is an equidistant imaging, which does not require any medium carrier and can directly present the real image in the air.

[0061] Therefore, by setting up two sets of mutually perpendicular optical waveguide arrays, the light rays from the image source side of the flat lens 12 can be clearly and one-to-one collected on the side of the floating real image 19, so that the formed floating real image 19 has higher clarity and fidelity.

[0062] like Figure 9 As shown, the angle between the extension direction of each sub-waveguide 1231 and the edge of the optical waveguide array is γ, where γ satisfies: 30°≤γ≤60°. For example, γ=45°. The two sets of optical waveguide arrays are perpendicular to the extension direction of the sub-waveguide 1231 along the thickness direction of the flat lens 12. The outer contour shape of the formed optical waveguide array is rectangular. Thus, by controlling the angle between the extension direction of the sub-waveguide 1231 and the edge of the optical waveguide array, the floating real image 19 presented by the display 13 can be clearer, avoiding image retention caused by excessively large or small angles, thus reducing the user's viewing experience.

[0063] The flat panel lens 12 has a first side 121 and a second side 122 on both sides along its thickness direction. A protective film 125 is provided on both sides 121 and 122, and the protective film 125 can be adhered to the outer surfaces of the first side 121 and the second side 122 of the flat panel lens 12. For example, the protective film 125 can be an anti-reflective coating deposited on the outer surfaces of the first side 121 and the second side 122 of the flat panel lens 12, or it can be a moth-eye film with a gradient refractive index formed on the air and the outer surfaces of the first side 121 and the second side 122 of the flat panel lens 12. Therefore, by providing protective films 125 on the first side 121 and the second side 122 of the flat panel lens 12, the possibility of incident light from the display 13 reflecting and forming interfering light at the surface of the flat panel lens 12 can be reduced, increasing the clarity of the formed floating real image 19, increasing the protection of the flat panel lens 12, and increasing the service life of the flat panel lens 12.

[0064] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0065] In the description of this invention, "first feature" and "second feature" may include one or more of the features. In the description of this invention, "a plurality of" means two or more. In the description of this invention, "above" or "below" the second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them. In the description of this invention, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0066] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0067] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An imaging device, characterized in that, include: An imaging module includes a housing, a flat lens, a display, and a first slip ring. The flat lens and the display are disposed inside the housing. The two sides of the flat lens in the thickness direction are a first side and a second side, respectively. The display is located on the first side. The light emitted by the display passes through the flat lens and forms a floating real image on the second side. A chassis is provided at the bottom of the housing. The first slip ring is disposed on the lower surface of the chassis. The first slip ring is electrically connected to the display and is adapted to be electrically connected to an external power source. Mounting base, the imaging module is rotatably mounted on the mounting base, the imaging module is rotatably supported on the mounting base by the chassis and detachably connected to the mounting base, a second slip ring is provided on the side surface of the mounting base facing the imaging module, when the imaging module is mounted on the mounting base, the second slip ring contacts the first slip ring to achieve electrical connection, the second slip ring is adapted to be electrically connected to an external power source; The imaging module can be detached from the mounting base as a whole for individual use, or it can be mounted on the mounting base to rotate 360° relative to the mounting base and stop at any angle. The chassis is provided with at least one rolling device, the rolling device including a rolling element that can roll on the side surface of the mounting base facing the imaging module, and a groove is formed on the side surface of the mounting base adjacent to the imaging module, the rolling element being rollably engaged in the groove.

2. The imaging device according to claim 1, characterized in that, Further includes: A rotating shaft, one end of which is rotatably fitted onto the mounting base about its central axis, and the other end of which is fitted onto the imaging module so that the rotating shaft rotates as the imaging module rotates.

3. The imaging device according to claim 2, characterized in that, The mounting base is provided with a rotation damper, which includes a body and a rotating body. The body is fixed on the mounting base and has a mounting hole. The rotating body is rotatably disposed in the mounting hole and has a mating hole. One end of the rotating shaft is mated in the mating hole so that the rotating body rotates with the rotation of the rotating shaft.

4. The imaging device according to claim 3, characterized in that, The outer circumferential surface of the rotating shaft is a non-circular surface; The imaging module has a limiting hole that mates with the other end of the rotating shaft, and the limiting hole and the mating hole are respectively adapted to the shape of the rotating shaft.

5. The imaging device according to claim 3, characterized in that, Two retaining rings are provided at one end of the rotating shaft, and the two retaining rings are respectively located on both sides of the rotating body along the axial direction of the rotating shaft.

6. The imaging device according to claim 2, characterized in that, The outer casing includes: A housing, the top and bottom of which are open; A transparent component is disposed on the top of the housing; The chassis, the transparent element, and the housing together define a receiving cavity. The flat lens and the display are disposed within the receiving cavity, with the display located below the flat lens. The first slip ring is disposed on the chassis, and the mounting base is disposed below the chassis.

7. The imaging apparatus according to claim 6, characterized in that, The chassis has a through hole extending along the thickness direction of the chassis, and the rolling element is a bearing. A portion of the bearing passes through the through hole and contacts the side surface of the mounting base facing the imaging module. The rolling device further includes: A bearing housing is mounted on the chassis and located within the receiving cavity; A bearing shaft that passes through the bearing and mounts the bearing on the bearing housing.

8. The imaging device according to claim 2, characterized in that, The rolling device is a plurality of devices, which are arranged at circumferential intervals along the rotation axis.

9. The imaging device according to claim 1, characterized in that, At least one handle is provided on the outer surface of the housing, and pulling the handle causes the imaging module to rotate relative to the mounting base.

10. The imaging apparatus according to any one of claims 1-9, characterized in that, The imaging module also includes: A control board is disposed inside the housing, the control board communicates with the display, and the control board is electrically connected to the first slip ring; An interactive sensor is provided, which communicates with the control board. The interactive sensor is located on the second side, and the angle between the interactive sensor and the display is equal to the angle between the interactive sensor and the floating real image.

11. The imaging apparatus according to claim 10, characterized in that, At least one speaker is provided inside the housing, and the speaker communicates with the control board. A sound outlet is formed at the position of the outer casing opposite to the speaker.

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