Camera stabilisation system

Abstract

The present invention relates generally to camera stabilizing systems, and more particularly to an improved lightweight handheld or vehicle mounted camera stabilizing system for use in photography or video related applications. In order to achieve the best possible results in film or video recording, aligned stability is critical, particularly on moving camera supports such as vehicles, flying objects and camera cranes.

Description

Technical Field

[0001] This invention relates primarily to camera stabilization systems, and more particularly to an improved lightweight handheld or vehicle-mounted camera stabilization system for applications related to photography or video. For optimal results in film or video recording, alignment stability is critical, especially on moving camera mounts (e.g., vehicles, flying objects, and camera lifts). Background Technology

[0002] Advances in optics, video, and traditional photography techniques have enabled a growing number of film enthusiasts to use high-quality portable cameras. As a result, both professionals and hobbyists are producing films of increased quality and sophistication. However, this evolution in quality has exacerbated the well-known problem of "jitter" when shooting with handheld cameras. Even when the operator attempts to stabilize the camera during panning or tilting shots, the uncontrolled transfer of operator movement to the camera results in unwanted camera shake, detracting from the aesthetics of the resulting video product. Shooting from moving, floating, or flying vehicles is even more difficult due to uncontrolled vehicle movement. Rotating or carrying the camera during smooth gliding requires considerable skill and experience, especially in scenes where the camera operator is walking, running, or riding in a vehicle to follow the protagonist's movements. In action situations, the already difficult task of maintaining camera stability, despite motion caused by the operator's breathing, heartbeat, and unconscious muscle movements, can be exacerbated by uncontrolled environmental conditions. The resulting shots are often unstable, abrupt, and visually unappealing. Motion interference, particularly angular interference transferred from the operator to the camera, is a major problem.

[0003] A popular mechanical (non-electronic) camera stabilization device is the Steadicam. (Steadicam). Steadicam equipment uses a large counterweight mounted at a considerable distance from the camera, which shifts the equipment's center of gravity to the handle operated by the operator. Despite its popularity, Steadicam equipment is heavy, bulky, and inflexible, imposes strain on the operator, requires long setup times, necessitates a cumbersome operator harness, and limits the camera's range of motion. The smoothness of operation depends primarily on the operator, as the operator must manually control the camera's orientation via a handle and carefully maintain its smoothness and balance within the narrow range of the system's capabilities. This makes the camera's operation and smooth rotation dependent on the operator's strength and skill.

[0004] Besides being Stanislav Beyond mechanical stabilization systems, the field of camera stabilization has seen numerous proposals for gyroscope-sensor-stabilized camera systems. These proposals rely on integrated three-axis gyroscope sensors to measure the tilt, sway, and roll of the platform from a single position attached to the camera platform. Disadvantageously, the gyroscope sensor construction commonly used in the art houses three rotation sensors in a single package, introducing several problems. The sensitivity of each sensor to rotation about a fixed axis varies depending on its pivoting position about another axis. For example, the sensitivity of a yaw rate sensor directly mounted on the camera platform decreases from a maximum to null as the platform pitch angle increases from zero to 90 degrees. Furthermore, at large pitch angles, the tilted yaw sensor introduces orthogonal rotational components into the signal used to control yaw motion. Those skilled in the art are keenly aware of this problem and have proposed various "workarounds," such as adding relative position encoders and gravity level sensors, and adding complex sine-cosine coordinate transformations to maintain a constant control loop gain in the stabilizer control circuitry. As another example of these drawbacks, typical closed-loop servo control systems are prone to instability due to mechanical resonance, which is caused by the mechanical decoupling and separation of sensors from their respective actuators. Until now, technicians have generally attempted to mitigate this problem by using mechanically rigid (heavy) gimbal frames, which are unsuitable for lightweight handheld stabilizers that require inevitably flexible, lightweight frames.

[0005] Commercial examples include Gyron Systems International, Ltd. (http: / / www.gyron.com), which offers a dual-sensor gimbal turntable and camera for external helicopter mounting, measuring 30×35×28 inches. A dual-channel fiber optic gyroscope assembly stabilizes the rock and tilt axes, while a quartz angular rate sensor stabilizes the roll axis. The external rock and tilt gimbals are driven by direct-drive torque motors. The internal rock and tilt gimbals are driven by voice coil actuators without gears to eliminate gear wear issues. The roll axis is driven by a torque motor via a ladder chain drive. The angular rate sensors are grouped together on a common platform, as is common in the art, leading to the aforementioned unfavorable angular interaction problem. Gyron's documentation neither considers nor suggests applying their aerospace technology to handheld stabilizer systems using lightweight, flexible frames with mechanical stabilization.

[0006] Another example of a camera stabilization system is disclosed in EP3627031. In this system, lens module 210 is... Figure 4The camera lens module disclosed in this reference is sleeve-like and annular, and comprises an annular disc motor to enable rotational movement of the lens. One of the drawbacks of the system disclosed in this reference is the lack of flexibility. For example, the camera lens module is fixed in size and different modules are required depending on the lens used. The integrated annular motor inevitably limits the performance of the system, for example in terms of the weight of the camera that can be controlled.

[0007] From these examples it is easy to understand that the individual consumer of a camera platform stabilisation system is limited to either a heavy, rigid, commercial system requiring several heavy flywheel gyroscopes at a medium to high cost, or to a system with functional limitations, wherein each flywheel gyroscope requires a heavy power pack or battery for rotation.

[0008] It is therefore apparent that there is a need in the art for a relatively inexpensive handheld camera stabilisation system that is light in weight and flexible (manipulable) in terms of the size (dimensions and weight) of the camera, stabilising over a large range of angular positions and dither frequencies (to DC). Such a stabilisation system should also be adapted to smoothly emulate any desired camera motion in response to simple motion control signals delivered to the stabiliser controller. These unresolved problems and deficiencies in the art are apparent, and are solved by the present invention in the manner described below. SUMMARY

[0009] In a first aspect, the present invention provides a camera holder comprising camera stabilisation features, in its basic configuration the camera holder comprising an annular bearing and a motor, the motor shaft of the motor being coaxial with the central axis of the annular bearing, the camera holder being provided with means for connecting the motor and the annular bearing at mutually variable distances around the same central axis, wherein the annular bearing has an inner diameter that can enclose a lens, and wherein the camera holder is provided with a camera mount such that the optical axis of the camera is coaxial with the central axis of the annular bearing.

[0010] The annular bearing and the motor can be connected in the holder at mutually variable distances, it can be considered that the annular bearing and the motor form opposite sides of the holder, wherein the motor will typically form part of the bottom of the holder, the annular bearing being positioned opposite the bottom. Depending on the size of the camera or the size of the lens, additional annular bearings can be positioned coaxially opposite the bottom.

[0011] In one embodiment, the motor is integrated in the bottom of the bottom frame of the camera holder. It is an object of the present invention to provide a camera holder that can be adjusted to fit the specifications of the camera suspended therein, in one embodiment, the motor is suspended by means of a holder in the bottom frame. In a specific embodiment, the holder will be custom made to fit the motor that needs to be suspended in the holder. In another embodiment, the holder, hereinafter also referred to as motor holder, is configured to provide suspension of the motor in the bottom frame such that the motor shaft is coaxial with the central axis of the ring bearing(s).

[0012] It is an object of the present invention to provide a camera holder that is adjustable for cameras, in one embodiment, the motor will be accessible and replaceable in the bottom frame. In one embodiment, the motor will be accessible by means of a motor holder, for example by means of an access panel, or the holder is configured to be removable from the bottom frame. In the latter embodiment, the holder can even be interchangeable with a holder custom made for the motor that needs to be suspended in the holder. In a preferred embodiment, the motor is centrally suspended in the bottom frame by means of a holder as provided herein. In another preferred embodiment, the motor used herein is a roll-stabilized motor. In this way, in the described embodiment, the camera holder can be used as a camera stabilizing device and can further comprise a motor control board, hereinafter also referred to as motor controller, with one or more gyroscopic sensors. The motor and the motor controller will allow for rotation and stabilization around the central axis of the ring bearing. In a specific embodiment, the motor controller is replaceable. In one embodiment, the motor and the motor controller are present within the motor holder. In another embodiment, the motor controller is mounted on the outside of the bottom frame, more in particular on the outside of the motor holder. In one embodiment, the motor controller is equipped with a power connection, in particular for a battery pack, more in particular for a battery pack that can be connected to the controller, even more in particular for a battery pack that can be replaceably connected to the controller.

[0013] In some embodiments, the stabilizing device can utilize one or more slip rings for power and / or signal leads, allowing for full 360 degree rotation around the roll axis of the stabilizing device without twisting the wiring of the power and / or signal leads. Where possible, the wiring can extend at least partially inside the camera holder, reducing the risk of the electrical wires being obstructed and / or broken when performing full 360 degree roll motion around the central axis of the ring bearing.

[0014] In one embodiment, the camera holder according to the present invention is characterized in that there is a rotatable bottom. The rotatable bottom is connected with the motor shaft and is further provided with means for connecting the rotatable bottom and the ring bearing at a variable distance from each other. By means of the means for connecting the rotatable bottom and the ring bearing at a variable distance from each other, the rotational movement of the motor is transmitted to the ring bearing. In a particular embodiment, the rotatable bottom is replaceable and custom-made to fit the motor and / or the camera that is to be used in the holder. As an alternative or in addition to one or more slip rings for power and / or signal leads, the rotatable bottom can comprise one or more connections and / or through- going parts for power / signal wiring, thus enabling the connection of the camera to external elements.

[0015] The object of the present invention is to provide a camera holder that enables the rolling movement of a camera around its optical axis, which is coaxial with the central axis of the ring bearing, the camera mount having to be located in the holder to enable said movement. Furthermore, in one embodiment, the camera mount will be part of or connected with the rotatable bottom. When connected, the camera mount can be connected directly with the rotatable bottom, indirectly through the means for connecting the rotatable bottom and the ring bearing at a variable distance from each other, or by a combination thereof. In one particular embodiment, the camera mount is suspended from the means for connecting the rotatable bottom and the ring bearing at a variable distance from each other.

[0016] With reference to the drawings, in one embodiment, the means for connecting the ring bearing at a variable distance from the motor and the rotatable bottom consists of a combination of clamps and rods. A first set of clamps and rods connects the bottom frame with the outer ring of the ring bearing, and a second set of clamps and rods connects the rotatable bottom with the inner ring of the ring bearing. In another embodiment, the first set of clamps and rods connects to the outer periphery of the bottom frame and the outer ring of the ring bearing. In another embodiment, the means for connecting the bottom frame with the ring bearing at a variable distance comprises spacers configured to adjust the orthogonal cross-sectional surface of the holder in a plane parallel to the circular cross-section of the ring bearing. One of the features of the camera holder according to the present invention is that the outer periphery of the orthogonal cross-sectional surface should be able to enclose the camera housing of the camera, otherwise the rolling movement of the camera around the central axis of the ring bearing will not be possible in full 360 degrees. With optional spacers as part of the means for connecting the bottom frame with the ring bearing at a variable distance, the camera holder can easily be adjusted to fit the camera that needs to be suspended in the holder.

[0017] In one embodiment, the bottom frame of the camera holder is circular; in particular has the same outer diameter as the ring bearing. This circular bottom frame can likewise be used as a handle to grip the holder. Further elements, such as a further handle, a microphone, an eye piece, a tripod mounting plate, etc. can be connected to the bottom frame, the ring bearing and / or to the first set of clamps and rods connecting the bottom frame with the outer ring of the ring bearing. This in turn increases the flexibility of the camera holder according to the needs of the operator and / or the camera suspended in the holder.

[0018] In one embodiment, the means for connecting the bottom frame and the ring bearing with a mutually variable distance comprises at least two opposingly and parallelly extending rods, in another embodiment two pairs of opposingly and parallelly extending rods. In one embodiment, the means for connecting the rotatable bottom with the ring bearing comprises at least one rod, in particular two rods, even more particularly two pairs of opposingly and parallelly extending rods. With reference to the figures, two of the opposingly and parallelly extending rods means comprising a pair of rods, wherein a first rod connects the bottom frame with the outer ring of the ring bearing and a second rod connects the rotatable bottom with the inner ring of the ring bearing.

[0019] In one embodiment, the camera holder, in particular the ring bearing, will comprise a marker or reference point to allow the optical axis of the camera to be centered with the central axis of the ring bearing.

[0020] The invention can be further summarized by the following numbered embodiments.

[0021] 1. A camera holder comprising a ring bearing and a motor, the motor axis of the motor being coaxial with the central axis of the ring bearing, the camera holder comprising means for keeping the motor and the ring bearing around the same central axis, means configured to adjust the distance between the motor and the ring bearing, wherein the ring bearing has an inner diameter that can include a lens, and wherein the camera holder comprises a camera mount such that the optical axis of the camera is coaxial with the central axis of the ring bearing.

[0022] The means configured to adjust the distance between the motor and the ring bearing are also referred to herein as means for connecting the motor and the ring bearing around the same central axis with a mutually variable distance. The ease of adjusting the distance between the motor and the ring bearing is one of the main advantages of the invention in providing a camera holder that can be adjusted to different camera setups (camera housing and lens) in a fail-safe manner.

[0023] 2. The camera holder according to embodiment 1, wherein the motor is centrally suspended in the bottom frame of the holder by means of a holder.

[0024] As described herein, the presence of a holder for the motor allows for proper placement, easy replacement, adjustment as needed, etc.

[0025] 3. The camera holder according to any one of the embodiments provided herein, wherein the rotating part of the motor, which is located on the inner side of the holder, is provided with a rotatable bottom, which further comprises means for connecting to the ring bearing, wherein said means for connecting to the ring bearing are configured to adjust the distance between said rotatable bottom and the ring bearing.

[0026] The means configured to adjust the distance between the rotatable bottom and the ring bearing are also referred to herein as means for connecting the rotatable bottom to the ring bearing at a mutually variable distance. Thus, in providing a camera holder that can be adjusted to different camera settings (camera housing and lens) in a fail-safe manner, they facilitate easy adjustment of the distance between the motor and the ring bearing, which is one of the main advantages of the present invention.

[0027] 4. In one embodiment, the camera holder is characterized in that the camera is mounted directly to the rotatable bottom and / or indirectly by means of said means for connecting the rotatable bottom to the ring bearing at a mutually variable distance.

[0028] 5. In one embodiment, the camera holder is characterized in that the rotatable bottom is provided with a connection and / or through-connection, for example for enabling the camera to be connected to an external element for power / signal cabling.

[0029] 6. In one embodiment, the camera holder is characterized in that the means for connecting the ring bearing at a variable distance from the motor and the rotatable bottom comprise a combination of a clamp and a lever.

[0030] 7. In one embodiment, the camera holder is characterized in that the holder has an outer periphery, which includes the camera housing of the camera.

[0031] 8. In one embodiment, the camera holder is characterized in that the bottom frame is circular.

[0032] 9. In one embodiment, the camera holder is characterized in that the outer diameter of the circular bottom frame and the outer diameter of the ring bearing are equal.

[0033] 10. In an embodiment, the camera holder is characterized in that the bottom frame and the ring bearing are connectable with a mutual variable distance by means of at least two opposing rods, i.e. the rods are configured to enable adjustment of the distance between the bottom frame and the ring bearing. In a specific embodiment, the two rods constitute a pair, wherein a first rod of the pair of rods is connected to the outer ring of the ring bearing, and wherein a second rod of the pair of rods is connected to the inner ring of the ring bearing.

[0034] 11. It follows from the above that, in an embodiment, the rotatable bottom is connected to the inner ring of the ring bearing by means of means for connecting to the ring bearing with a mutual variable distance. In another embodiment, the bottom frame is connected to the outer ring of the ring bearing by means of means for connecting to the ring bearing with a mutual variable distance. In a preferred embodiment, the rotatable bottom is connected to the inner ring of the ring bearing by means of means for connecting to the ring bearing with a mutual variable distance, and the bottom frame is connected to the outer ring of the ring bearing by means of said means for connecting to the ring bearing with a mutual variable distance.

[0035] 12. In an embodiment, the camera holder is characterized in that the motor is interchangeable.

[0036] 13. In an embodiment, the camera holder is characterized in that the holder further comprises a motor controller, which is preferably removable.

[0037] 14. In an embodiment, the camera holder is characterized in that the motor controller is suspended from the outside of the bottom frame, and is preferably provided with a power connection.

[0038] 15. In an embodiment, the camera holder is characterized in that the motor controller is interchangeable.

[0039] 16. In an embodiment, the camera holder is characterized in that the power supply comprises a battery.

[0040] 17. In an embodiment, the camera holder is characterized in that the ring bearing comprises one or more camera center points. BRIEF DESCRIPTION OF DRAWINGS

[0041] With specific reference to the drawings in detail, it is to be understood that the illustrations are by way of example and for a clear understanding of the principles and concepts of the present application. They are presented in the cause of providing what is believed to be the most useful and readily description of the application as perceived from the perspective of the current state of the art, in which there is no attempt to call out structural details of the application in more detail than is necessary for a fundamental understanding of the application. The description taken with the drawings make apparent to those skilled in the art how the several forms of the present application can be embodied in practice.

[0042] Figure 1 is a perspective rear view of a camera holder according to the present invention.

[0043] Figure 2 is a perspective side view of a camera holder according to the present invention.

[0044] Figure 3 is a perspective rear side view of a camera holder according to the present invention.

[0045] Figure 4 is a detailed view of a rotatable bottom inside a camera holder according to the present invention.

[0046] Figure 5 is a simplified side view of a camera hanging inside a camera holder according to the present invention. DETAILED DESCRIPTION

[0047] As mentioned above, examples of camera holder and camera stabilizing system are provided in the drawings of the present application, which are for illustrative purposes only and are not intended to limit the present invention to the combination of particular details or features. While the embodiments of the present disclosure are described in conjunction with the following examples and corresponding text and drawings, it is not intended that the embodiments of the disclosure be limited to such description. Rather, the intention is to cover all alternatives, modifications, and equivalents included within the spirit and scope of the embodiments of the present disclosure.

[0048] In the camera holder shown in Figure 1 and Figure 2 , the bottom frame is a circular bottom frame having the same outer diameter as the ring bearing. By means of the first set of clamps and rods, the bottom frame and the ring bearing can be positioned at a mutual variable distance around a common central axis, i.e. around the central axis of the ring bearing. In this way, the depth (d) of the holder can be adjusted to hang a camera in the holder.

[0049] In the center of the bottom frame, a motor is mounted, wherein the motor shaft is coaxial with the central axis of the ring bearing. The motor is present within a motor holder, which in the present construction comprises a cover to allow easy access to the motor. Visible for the side of the motor holder are also the power connection and the motor controller for balancing the motor present. In this construction, the holder is part of the bottom frame, but as is clear from Figure 3 , the motor holder can be replaceable and hanging in the bottom frame. As mentioned above, this increases the flexibility and ease of use of the holder according to the present invention.

[0050] Alternatively, for the motor mount shown in Figure 1 , which comprises both the motor and the motor controller, the motor controller can be as shown in Figure 3The camera holder, shown mounted on a motor holder, in particular in combination with the detachable and replaceable motor holder provided in the present case, can be fully individualized and can be customized to the needs of the cameras hanging in the holder as required. The ease of use, due to the direct access to the battery pack and the replaceable mounting of the battery pack to the holder, is a further advantage of the camera holder according to the invention.

[0051] Figure 3 A further advantage of the holder according to the invention is shown. Due to the construction tightly around the camera housing, the holder is compact, lightweight and easy to handle. The circular base frame can for example function as a handle to hold the holder in a frontal position. In addition, additional elements, such as further handles, crossbars, tripods or camera dolly mounting planes, eyepieces and the like, can be mounted to the frame elements of the holder, i.e. the base frame, the ring bearing and the means for connecting the base frame and the ring bearing, around the same central axis at mutually variable distances, i.e. the first set of rods and clamps connecting the base frame with the outer ring of the ring bearing and the second set of rods and clamps connecting the rotatable bottom with the inner ring of the ring bearing.

[0052] Within the holder, the rotatable bottom is connected to the rotating shaft of the motor and is connected to the inner ring of the ring bearing by means of the second set of clamps and rods. For the first set, but also for this second set, the mutual distance between the rotatable bottom and the ring bearing can be adjusted at variable distances. In Figure 2 It can also be seen in Figure 4 and in more detail in Figure 2 It can also be seen in that different markings or reference points are present on the outside of the ring bearing. From Figure 4 and Figure 5 It can be concluded that in the shown embodiment, the camera is not mounted directly to the rotatable bottom, but that the camera is suspended to the second set of clamps and rods connecting the rotatable bottom with the inner ring of the ring bearing. For light-weight cameras with compact camera housings, the camera can be mounted directly to the rotatable bottom, for which the connection between the rotatable bottom and the inner ring of the ring bearing is optional.

[0053] In order to allow a complete 360-degree rolling movement of the camera around the central axis of the ring bearing, the camera holder must be constructed such that the rolling movement of the camera inside the holder is possible. In the camera holder according to the invention, this is easily achieved by a suitable choice of the dimensions of the base frame, even adjustable by means for connecting the base frame and / or the motor with the ring bearing at mutually variable distances. For example, and with reference to Figure 5by including spacers in the first set of clamps and rods, the outer perimeter of the holder can be adjusted to allow such full 360 degree rolling motion of the camera within the holder. In this illustrated embodiment, the camera housing does not allow for two pairs of second clamps and rods as shown in Figure 1 and Figure 2 and thus further demonstrates the flexibility of the camera housing in terms of adjustment of the camera that can be suspended in the holder as needed, without loss of structural integrity and functionality.

[0054] Various modifications and changes can be made to the disclosed embodiments of the disclosed device without departing from the spirit or scope of the disclosure. Accordingly, it is intended that the disclosure cover all such modifications and variations as fall within the scope of the claims provided herein and their equivalents.

[0055] Reference List

[0056] 1. A camera holder

[0057] 2. A ring bearing

[0058] 3. A motor

[0059] 4. A motor shaft

[0060] 5. Means for connecting the motor and the ring bearing at a variable distance from each other around the same central axis

[0061] 6. A camera mount

[0062] 7. The bottom of the holder

[0063] 8. The bottom frame

[0064] 9. The holder or motor holder

[0065] 10. The motor holder cover

[0066] 11. The motor control board or motor controller

[0067] 12. The power connection

[0068] 13. The battery pack

[0069] 14. The slip ring connection

[0070] 15. The rotatable bottom

[0071] 16. Means for connecting the rotatable bottom and the ring bearing at a variable distance from each other

[0072] 17. The connection of the rotatable bottom

[0073] 18 through portion of rotatable bottom

[0074] 19 first set of clamps and rods

[0075] 20 second set of clamps and rods

[0076] 21 outer ring of annular bearing

[0077] 22 inner ring of annular bearing

[0078] 23 spacer

[0079] 24 additional element

[0080] 25 marker or reference point

Claims

1. A camera holder comprising a ring bearing and a motor, the motor axis of the motor being coaxial with the central axis of the ring bearing, the camera holder comprising means for keeping the motor and the ring bearing around the same central axis, means configured to adjust the distance between the motor and the ring bearing, wherein the ring bearing has an inner diameter that can include a lens, and wherein the camera holder comprises a camera mount such that the optical axis of a camera is coaxial with the central axis of the ring bearing, wherein the rotating part of the motor on the inside of the camera holder is provided with a rotatable bottom, the rotatable bottom further comprising means for connecting the rotatable bottom to the ring bearing, wherein the means for connecting the rotatable bottom to the ring bearing are for connecting the ring bearing at a variable distance from the motor and the rotatable bottom and comprise a combination of a clamp and a rod.

2. The camera cage of claim 1, wherein, The motor is centrally suspended in a bottom frame of the camera holder by means of a holder.

3. The camera cage of claim 1, wherein, The camera is directly mounted to the rotatable bottom and / or indirectly mounted by means of the means for connecting the rotatable bottom to the ring bearing at a mutually variable distance.

4. The camera holder of claim 1, wherein, The rotatable bottom is provided with a connection and / or a through-going part.

5. The camera cage of any one of claims 1 to 4, wherein, The camera holder has an outer periphery that includes the camera housing of the camera.

6. The camera cage of claim 2, wherein, The bottom frame is circular.

7. The camera cage of claim 6, wherein, The outer diameter of the circular bottom frame and the outer diameter of the ring bearing are equal.

8. The camera cage of claim 2, wherein, The bottom frame and the ring bearing can be connected at a mutually variable distance by means of at least two opposing rods.

9. The camera cage of claim 8, wherein, A first rod of the pair of rods is connected to the outer ring of the ring bearing, and wherein a second rod of the pair of rods is connected to the inner ring of the ring bearing.

10. The camera cage of any one of claims 1 to 4, wherein, The rotatable bottom is connected to the inner ring of the ring bearing by means of the means for connecting the rotatable bottom to the ring bearing at a mutually variable distance.

11. The camera cage of any one of claims 1 to 4, wherein, The motor is interchangeable.

12. The camera cage of claim 2, wherein, The camera holder further comprises a motor controller.

13. The camera cage of claim 12, wherein, The motor controller is suspended from the outside of the bottom frame and is provided with a power connection.

14. The camera cage of claim 13, wherein, The motor controller is interchangeable.

15. The camera cage of claim 13 or 14, wherein, The power supply of the motor comprises a battery.

16. The camera cage of any one of claims 1 to 4, wherein, The ring bearing comprises one or more camera center points.

17. The camera holder of claim 12, wherein, The motor controller is removable.

Images