Image stabilizing device and binocular telescope formed by same

Abstract

The utility model provides an image stabilizing device and a binocular telescope formed by the same, and the image stabilizing device comprises an outer frame, a rotating frame, a prism frame, and a detection assembly. A first circuit board is arranged on the outer frame, and a pitching driving coil is arranged on the first circuit board; the rotating frame is arranged on the outer frame in a pitching swing mode, and driving magnetic steel corresponding to the pitching driving coil in position is arranged on the rotating frame. The image stabilization binocular telescope comprises the image stabilization device. According to the utility model, the left prism assembly and the right prism assembly are arranged on the same prism frame, so that the left prism assembly and the right prism assembly can move synchronously, the control is more convenient, and the control precision is higher. Besides, a driving device is formed by the coil and the magnetic steel, driving in the pitching direction and the horizontal direction can be achieved only through one piece of magnetic steel, the structure is simpler, and the assembling difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of telescope anti - shake, in particular to an image stabilization device and a binocular telescope composed thereof. Background Technique

[0002] When an ordinary telescope is used handheld, the slight tremors of the hand will be synchronously amplified, resulting in severe shaking of the field of view and making it difficult to observe normally. Currently, numerous image stabilization technologies have emerged. Although they can solve the problem of field - of - view jitter to a certain extent, the existing image stabilization technologies still have problems. For example, the patented technology with the publication number CN117389021A discloses a binocular anti - shake telescope and its control method. However, this technology uses two independent single - channel anti - shake telescopes in parallel, making it difficult to synchronize the optical axes on both sides and having a high control difficulty. Another example is the patented technology with the publication number CN220894655U, which discloses a binocular anti - shake telescope and a laser rangefinder. In this technology, the azimuth axes of the two groups of prisms rotate separately, still making it difficult to achieve a high - precision consistency of the optical axes and having a high control difficulty. Another example is the anti - vibration device and binocular telescope disclosed in the patented technology with the publication number CN115698842A. This technology uses a conventional motor as the driving device, having problems of large volume and weight and small driving force. Yet another example is the optical image stabilization device disclosed in the patented technology with the publication number US9395551B2, which uses a voice coil motor drive scheme. However, it requires placing a set of driving permanent magnets on the prism assembly and the external frame respectively, having problems of complex assembly and high balancing difficulty. Based on this, the present application provides a new image stabilization device and a binocular telescope composed thereof. Content of the Utility Model

[0003] In order to solve the problems existing in the existing image stabilization technology, the utility model designs an image stabilization device and a binocular telescope composed thereof. Two groups of erecting prisms are installed on the same structural member, and synchronous operation of the left and right binoculars can be achieved when starting. The driving permanent magnets are placed on the rotating frame, and the pitching and azimuth rotating axes share the same set of permanent magnets, significantly reducing the assembly complexity.

[0004] The utility model is realized through the following technical solutions: An image stabilization device, comprising:

[0005] An outer frame, on which a first circuit board is provided, and a pitching drive coil is provided on the first circuit board;

[0006] A rotating frame, which is pivotally arranged on the outer frame and is provided with driving permanent magnets corresponding to the pitching drive coil in position;

[0007] The prism frame is horizontally swingably arranged on the rotating frame, and a left prism assembly, a right prism assembly and a second circuit board are arranged thereon. A horizontal drive coil corresponding to the drive magnet is arranged on the second circuit board;

[0008] The detection assembly is electrically connected to the first circuit board and the second circuit board, and is used for detecting the jitter information of the image stabilization device and the deflection information of the drive magnet.

[0009] Further, the detection assembly includes a first Hall element and a second Hall element respectively arranged on the first circuit board and the second circuit board, and a gyroscope arranged on the first circuit board or the second circuit board.

[0010] The left prism assembly and the right prism assembly have the same structure, and both include a roof prism and a semi-pentaprism glued together.

[0011] As another preferred solution, a third circuit board is further arranged on the prism frame, and an infrared laser emitter and an infrared laser receiver are arranged on the third circuit board; both the left prism assembly and the right prism assembly further include a beam splitting prism, and the beam splitting prism is glued to the outer side of the outer reflecting surface of the semi-pentaprism; the positions of the infrared laser emitter and the infrared laser receiver respectively correspond to the two beam splitting prisms.

[0012] As another preferred solution, the left and right sides of the rotating frame are respectively connected to the outer frame through outer rotating shafts, so that the rotating frame can swing in a pitching manner; the upper and lower sides of the prism frame are respectively connected to the rotating frame through inner rotating shafts, so that the prism frame can swing horizontally.

[0013] As another preferred solution, both the outer rotating shaft and the inner rotating shaft are screw bearings.

[0014] The present invention also discloses an image stabilization binocular telescope, which includes the above-mentioned image stabilization device; the image stabilization device is arranged between the objective lens assembly and the eyepiece assembly of the image stabilization binocular telescope, and the left prism assembly and the right prism assembly of the image stabilization device respectively face the two objective lenses of the objective lens assembly, and the two eyepieces of the eyepiece assembly also respectively face the left prism assembly and the right prism assembly of the image stabilization device.

[0015] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0016] (1) In the present invention, the left prism assembly and the right prism assembly are arranged on the same prism frame, so the left prism assembly and the right prism assembly can move synchronously, which is more convenient to control and has higher control accuracy.

[0017] (2) The utility model forms a driving device through a coil and a permanent magnet, and only one permanent magnet can be used to achieve driving in the pitching and horizontal directions, with a simpler structure and reduced assembly difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation to the present application. In each figure, the same reference numerals represent the same components. Among them,

[0019] Figure 1 is a structural diagram of the image stabilization device of the present utility model from the first perspective.

[0020] Figure 2 is a structural diagram of the image stabilization device of the present utility model from the second perspective.

[0021] Figure 3 is a sectional view of the image stabilization device of the present utility model.

[0022] Figure 4 is a schematic structural diagram of the image stabilization binocular telescope of the present utility model.

[0023] Figure 5 is an infrared light path diagram of the image stabilization device in Embodiment 2 of the present utility model.

[0024] The reference numerals in the above-mentioned drawings are: 1 - outer frame, 2 - rotating frame, 3 - right prism assembly, 4 - prism frame, 5 - inner rotating shaft, 6 - first circuit board, 7 - driving permanent magnet, 8 - pitching driving coil, 9 - horizontal driving coil, 10 - second circuit board, 11 - outer rotating shaft, 13 - third circuit board, 14 - roof prism, 15 - half pentaprism, 16 - beam splitting prism, 17 - left prism assembly, 18 - infrared laser emitter, 19 - infrared laser receiver, 20 - eyepiece, 21 - rhombic prism, 22 - focusing lens, 23 - objective lens. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0026] It should be noted that if terms such as "first", "second", etc. are involved in the description, claims and the above-mentioned drawings of this application, they are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of this application described herein. In addition, if terms such as "comprising" and "having" and any variations thereof are involved, they are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0027] In this application, if terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are involved, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation.

[0028] Moreover, in addition to being used to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0029] In addition, in this application, if terms such as "installed", "set up", "provided with", "connected", "coupled", "socketed", etc. are involved, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will describe this application in detail with reference to the drawings and in combination with the embodiments.

[0031] Embodiment 1

[0032] As Figure 1As shown in the figure, this embodiment discloses a video stabilization device, which includes: an outer frame 1, a rotating frame 2, a prism frame 4, and a detection component. Among them, the left and right sides of the rotating frame 2 are respectively connected to the outer frame 1 through outer rotating shafts 11. The outer rotating shafts 11 are screw bearings. In this way, the rotating frame 2 can swing in a pitching motion with the outer rotating shafts 11 as the fulcrum. A first circuit board 6 is provided on the outer frame 1, and a pitching drive coil 8 is provided on the first circuit board 6. The first circuit board 6 can control the energization of the pitching drive coil 8 to work. Correspondingly, a drive magnet 7 is provided on the rotating frame 2, and the position of the drive magnet 7 corresponds to the position of the pitching drive coil 8. When the pitching drive coil 8 is energized to work, it can drive the drive magnet 7, causing relative movement between the drive magnet 7 and the pitching drive coil 8. In this way, the drive magnet 7 and the pitching drive coil 8 together constitute a pitching drive device capable of driving the rotating frame 2 to swing in a pitching motion.

[0033] In addition, the upper and lower sides of the prism frame 4 are respectively connected to the rotating frame 2 through inner rotating shafts 5. The inner rotating shafts 5 are also screw bearings. In this way, the prism frame 4 can swing horizontally with the inner rotating shafts 5 as the fulcrum. A second circuit board 10 is provided on the prism frame 4, and a horizontal drive coil 9 is provided on the second circuit board 10. The second circuit board 10 can control the energization of the horizontal drive coil 9 to work. The position of the horizontal drive coil 9 corresponds to the position of the drive magnet 7. When the horizontal drive coil 9 is energized to work, it can drive the drive magnet 7, causing relative movement between the drive magnet 7 and the horizontal drive coil 9. In this way, the drive magnet 7 and the horizontal drive coil 9 together constitute a horizontal drive device capable of driving the prism frame 4 to swing horizontally.

[0034] A left prism assembly 17 and a right prism assembly 3 are provided on the prism frame 4. The left prism assembly 17 and the right prism assembly 3 are distributed left and right, so that the left prism assembly 17 and the right prism assembly 3 can correspond to the two objective lenses and two eyepieces of a binocular telescope.

[0035] The detection component is electrically connected to the first circuit board 6 and the second circuit board 10, and is used to detect the jitter information of the entire video stabilization device and the deflection information of the drive magnet 7. The first circuit board 6 and the second circuit board 10 can be connected through a flexible cable.

[0036] The detection component includes a first Hall element disposed on the first circuit board 6, a second Hall element disposed on the second circuit board 10, and a gyroscope disposed on the first circuit board 6 or the second circuit board 10. The positions of the first Hall element and the second Hall element correspond to the position of the driving magnet 7. The first Hall element and the second Hall element are respectively used to detect the position information between themselves and the driving magnet 7, and the gyroscope is used to detect the jitter information of the entire image stabilization device. The gyroscope uses an ICM20602 gyroscope sensor, and both the first Hall element and the second Hall element use SS49E Hall elements. In addition, a GD32L233 single-chip microcomputer is disposed on the first circuit board 6 as a processor.

[0037] The left prism assembly 17 and the right prism assembly 3 have the same structure, and both include a roof prism 14 and a semi-pentaprism 15 glued together; that is, both the left prism assembly 17 and the right prism assembly 3 are erecting prisms formed by gluing the roof prism 14 and the semi-pentaprism 15.

[0038] The image stabilization device of this embodiment can be installed in a binocular telescope to make the binocular telescope form a stabilized binocular telescope. Specifically, as Figure 4 shown, an installation chamber can be provided between the objective lens assembly and the eyepiece assembly of the binocular telescope. The image stabilization device is installed in the installation chamber, and the objective lens assembly and the eyepiece assembly are connected to the front and rear ends of the installation chamber, so that the entire image stabilization device is located between the objective lens assembly and the eyepiece assembly. In the prior art, the objective lens assembly of the binocular telescope includes two left and right objective lenses 23 and a focusing lens 22, and the eyepiece assembly includes two left and right rhomboid prisms 21 and two left and right eyepieces 20 respectively connected to the two left and right rhomboid prisms 21. When the image stabilization device is installed between the objective lens assembly and the eyepiece assembly, the left prism assembly 17 and the right prism assembly 3 of the image stabilization device are respectively opposite to the two objective lenses 23 of the objective lens assembly, and the two eyepieces 20 of the eyepiece assembly are also respectively opposite to the left prism assembly 17 and the right prism assembly 3 of the image stabilization device; that is, the left objective lens, the left prism assembly 17, the left rhomboid prism, and the left eyepiece together form an optical path; the right objective lens, the right prism assembly 3, the right rhomboid prism, and the right eyepiece together form another optical path; thus, when visible light enters from the objective lens, after being reflected by the semi-pentaprism 15 and the roof prism 14, it then enters the human eye through the eyepiece.

[0039] With the above structure, when the image-stabilized binoculars vibrate, the gyroscope detects the vibration data of the image-stabilization device and uses this vibration data as the target quantity. The first Hall element detects the moving distance data between it and the drive magnet 7 as the control feedback quantity. The processor in the first circuit board inputs the above feedback quantity and target quantity into the feedback control algorithm, calculates the control output quantity, and drives the drive magnet 7 to move through the pitch drive coil 8, causing the rotating frame 2 to make corresponding pitch swings. At the same time, the second Hall element detects the moving distance data between it and the drive magnet 7 as the control feedback quantity. The processor inputs the above feedback quantity and target quantity into the feedback control algorithm, calculates the control output quantity, and drives the drive magnet 7 to shift through the horizontal drive coil 9, causing the prism frame 4 to make corresponding horizontal swings, thereby offsetting the influence on the field of view caused by the vibration of the image-stabilized binoculars.

[0040] In this embodiment, the left prism assembly 17 and the right prism assembly 3 are arranged on the same prism frame 4. Therefore, the left prism assembly 17 and the right prism assembly 3 can move synchronously, which is more convenient to control and has higher control accuracy. In addition, in this embodiment, the driving device is constituted by a coil and a magnet. Only one magnet is used to achieve driving in the pitch and horizontal directions, and its structure is simpler and the assembly difficulty is reduced.

[0041] Embodiment 2

[0042] As Figure 2 、 3 shown, based on Embodiment 1, the image-stabilization device of this embodiment further has a third circuit board 13 arranged on the prism frame 4. An infrared laser emitter 18 and an infrared laser receiver 19 are arranged on the third circuit board 13, and the third circuit board 13 can drive the infrared laser emitter 18 and the infrared laser receiver 19 to work. In addition, both the left prism assembly 17 and the right prism assembly 3 further include a beam-splitting prism 16, and the beam-splitting prism 16 is glued to the outer reflecting surface of the semi-pentaprism 15; the positions of the infrared laser emitter 18 and the infrared laser receiver 19 respectively correspond to the two beam-splitting prisms 16. Specifically, when setting, the infrared laser emitter 18 is opposite to the beam-splitting prism 16 on the right prism assembly 3, and the infrared laser receiver 19 is opposite to the beam-splitting prism 16 on the left prism assembly 17; of course, the infrared laser emitter 18 can also be opposite to the beam-splitting prism 16 on the left prism assembly 17, and the infrared laser receiver 19 is opposite to the beam-splitting prism 16 on the right prism assembly 3.

[0043] With the above structure, the image stabilization device of this embodiment can be installed in a binocular telescope, making the binocular telescope form an image stabilization laser rangefinder binocular telescope. Specifically, the installation method of this image stabilization device is the same as that in Embodiment 1 and will not be elaborated here. When used as an image stabilization laser rangefinder binocular telescope, its optical path is as follows: The infrared laser emitter 18 emits infrared waves. After being reflected by the beam splitter prism, half pentaprism 15, and roof prism 14 on the right prism assembly 3, the infrared waves are emitted through the right objective lens; After the infrared waves are reflected back by the object to be measured, they enter from the left objective lens, and are received by the infrared laser receiver 19 after passing through the half pentaprism 15, roof prism 14, and beam splitter prism, as Figure 5 shown.

[0044] The image stabilization principle of the image stabilization laser rangefinder binocular telescope formed by the image stabilization device in this embodiment is the same as that in Embodiment 1 and will not be elaborated here.

[0045] It should be noted that all the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0046] In addition, the above specific embodiments are exemplary. Those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the protection scope of the present invention. Those skilled in the art should understand that the specification and drawings of the present invention are illustrative and do not constitute a limitation on the claims. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. An image stabilization device, characterized in that: include: An outer frame (1) on which a first circuit board (6) is arranged, and a pitch driving coil (8) is arranged on the first circuit board (6); A rotating frame (2) is arranged on the outer frame (1) so as to be able to swing in pitch and in elevation, and is provided with a driving magnet (7) whose position corresponds to the pitch driving coil (8); A prism frame (4) is arranged on the rotating frame (2) in a horizontally swingable manner, and is provided with a left prism assembly (17), a right prism assembly (3) and a second circuit board (10); the second circuit board (10) is provided with a horizontal driving coil (9) whose position corresponds to the driving magnetic steel (7); A detection component is electrically connected to the first circuit board (6) and the second circuit board (10), and is used to detect jitter information of the image stabilization device and deflection information of the driving magnet (7).

2. The image stabilization device according to claim 1, characterized in that: The detection component comprises a first Hall element and a second Hall element respectively arranged on a first circuit board (6) and a second circuit board (10), and a gyroscope arranged on the first circuit board (6) or the second circuit board (10).

3. The image stabilization device according to claim 1, characterized in that: The left prism assembly (17) and the right prism assembly (3) have the same structure, and both comprise a roof prism (14) and a half pentaprism (15) glued together.

4. The image stabilization device according to claim 3, characterized in that: The prism frame (4) is also provided with a third circuit board (13), and an infrared laser emitting tube (18) and an infrared laser receiving tube (19) are provided on the third circuit board (13); the left prism assembly (17) and the right prism assembly (3) also each include a beam splitter prism (16), and the beam splitter prism (16) is glued to the outside of the outer reflection surface of the semi-penta prism (15); the positions of the infrared laser emitting tube (18) and the infrared laser receiving tube (19) respectively correspond to the two beam splitter prisms (16).

5. The image stabilization device according to claim 1, characterized in that: The left and right sides of the rotating frame (2) are respectively connected to the outer frame (1) via an external rotating shaft (11), so that the rotating frame (2) can swing in pitch and in elevation; the upper and lower sides of the prism frame (4) are respectively connected to the rotating frame (2) via an internal rotating shaft (5), so that the prism frame (4) can swing horizontally.

6. The image stabilization device according to claim 5, characterized in that: The outer rotating shaft (11) and the inner rotating shaft (5) are both screw bearings.

7. A pair of binoculars, characterized in that: The image stabilizing device comprises the image stabilizing device as described in any one of claims 1 to 6; the image stabilizing device is arranged between the objective lens assembly and the eyepiece assembly of the image stabilizing binoculars, and the left prism assembly (17) and the right prism assembly (3) of the image stabilizing device are respectively opposite to the two objective lenses (23) of the objective lens assembly, and the two eyepieces (20) of the eyepiece assembly are also respectively opposite to the left prism assembly (17) and the right prism assembly (3) of the image stabilizing device.

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