Binocular inverted image prism image stabilization module forming linkage of parallelogram mechanism

Abstract

The utility model discloses a binocular inverted image prism image stabilization module forming linkage of a parallelogram mechanism, which comprises a mounting frame, an X-axis rotating frame, a left prism assembly, a right prism assembly, a left Y pivot shaft, a right Y pivot shaft, an X pivot shaft, a connecting rod, an X-axis driving mechanism and a Y-axis driving mechanism, the X-axis rotating frame is nested in the mounting frame and is rotatably connected with the left side and the right side of the mounting frame through X pivoting shafts on the two sides; the left prism assembly is nested in the X-axis rotating frame and is rotatably connected with the upper end and the lower end of the X-axis rotating frame through a left Y pivot shaft; the right prism assembly is nested in the X-axis rotating frame and is rotatably connected with the upper end and the lower end of the X-axis rotating frame through a right Y pivot shaft; the connecting rod, the left prism assembly and the right prism assembly form a parallelogram mechanism to be linked; the structure design is ingenious and greatly simplified, the production cost is reduced, the structure is more compact, the control is simple, and the imaging quality is more stable.

Description

Technical Field

[0001] The utility model relates to a binocular inverted image prism image stabilizing module which is linked with a parallelogram mechanism. Background Art

[0002] Binoculars generally include a left lens barrel and a right lens barrel. The left lens barrel is equipped with a left objective lens group, a left prism group and a left eyepiece group, and the right lens barrel is equipped with a right objective lens group, a right prism group and a right eyepiece group. Figure 1 In the optical principle diagram of binoculars shown in the figure, the main function of the left prism group and the right prism group is to produce an inverted image (or an erect image).

[0003] like Figure 2 and Figure 3 As shown, the image stabilization system using an inverted prism needs to consider the jitter problem of 6 degrees of freedom, that is, when a person holds the binoculars, there will be shaking, resulting in back and forth movement of the Z axis, X axis and Y axis and rotation around the Z axis, X axis and Y axis. After a large number of experimental studies, the movement of the Z axis, X axis and Y axis and the rotation around the Z axis have little effect on the stability of the image (can be ignored), while the rotation around the X axis and Y axis has a greater impact on the image quality. Therefore, the usual practice of the binocular inverted prism image stabilization system is how to compensate for the impact of the rotation of the X axis and the Y axis on the imaging. The patent number is 202311520311.6, and the name is: A binocular anti-shake telescope and its control method. In this patent, the prism group in each barrel uses an X-axis drive mechanism and a Y-axis drive mechanism to complete the rotation compensation of the X axis and the Y axis, so a total of four independent drive mechanisms are used to complete the image stabilization.

[0004] This leads to the following technical problems: 1) The four independent drive mechanisms (electromagnetic drive mechanisms) are precision drive mechanisms with high cost, complex structure and larger volume; 2) The four independent drive mechanisms increase the difficulty of control and cannot synchronize the movement of the right prism group and the left prism group, which affects the imaging quality. Summary of the invention

[0005] The utility model provides a binocular inverted prism image stabilization module composed of a parallelogram mechanism linkage, which can solve the technical problems of four sets of independent driving mechanisms driving prism groups in the binocular inverted prism image stabilization system in the prior art, simplify the structure, reduce costs, reduce volume, and reduce control difficulty under the premise of ensuring imaging quality.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A binocular inverted prism image stabilization module composed of a parallelogram mechanism linkage includes a mounting frame, an X-axis rotation frame, a left prism assembly, a right prism assembly, a left Y pivot axis, a right Y pivot axis, an X pivot axis, a connecting rod, an X-axis driving mechanism and a Y-axis driving mechanism, wherein:

[0008] The X-axis rotating frame is nested in the mounting frame and is rotatably connected to the left and right sides of the mounting frame by using X-pivot axes on both sides;

[0009] The left prism assembly is nested inside the X-axis rotating frame and is rotatably connected to the upper and lower ends of the X-axis rotating frame by using the left Y pivot axis;

[0010] The right prism assembly is nested inside the X-axis rotating frame and is rotatably connected to the upper and lower ends of the X-axis rotating frame by using the right Y pivot axis;

[0011] The left Y pivot axis is located at the center of the left prism assembly, and the right Y pivot axis is located at the center of the right prism assembly. A first hinge fulcrum and a second hinge fulcrum are respectively arranged on the end surfaces of the left prism assembly and the right prism assembly near the edge. Both ends of the connecting rod are respectively hinged to the first hinge fulcrum and the second hinge fulcrum. The connecting rod, the left prism assembly, and the right prism assembly form a parallelogram mechanism to move in conjunction with each other.

[0012] The X-axis driving mechanism is used to drive the X-axis rotating frame to rotate around the X-axis, and the Y-axis driving mechanism is used to drive the left prism assembly and the right prism assembly to rotate around the Y-axis synchronously.

[0013] The left prism assembly and the right prism assembly mentioned above both include a half pentaprism, a roof prism and a mounting seat, and the half pentaprism and the roof prism are nested and installed in the mounting seat.

[0014] The above-mentioned X-axis driving mechanism and Y-axis driving mechanism both adopt electromagnetic coil drivers.

[0015] The above-mentioned mounting frame and X-axis rotation frame are rectangular frames.

[0016] A screw mounting seat is arranged at a corner of the above-mentioned mounting frame, and the mounting frame can be mounted inside the lens barrel of the binoculars by screwing the screw mounting seat.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The X-axis rotating frame of the utility model is nested in the mounting frame and is rotatably connected to the left and right sides of the mounting frame by using the X-axis pivot shafts on both sides. The left Y-axis pivot shaft is located in the center of the left prism assembly, and the right Y-axis pivot shaft is located in the center of the right prism assembly. The first hinge fulcrum and the second hinge fulcrum are respectively set near the edge position on the end surface of the left prism assembly and the right prism assembly. The two ends of the connecting rod are respectively hinged with the first hinge fulcrum and the second hinge fulcrum. The connecting rod, the left prism assembly, and the right prism assembly form a parallelogram mechanism to move together; the X-axis driving mechanism is used to drive the X-axis rotating frame to rotate around the X-axis, and the Y-axis driving mechanism is used to drive the left prism assembly and the right prism assembly to rotate synchronously around the Y-axis. The utility model only needs two sets of driving mechanisms to complete the rotation compensation of the X-axis and the rotation compensation of the Y-axis. The structural design is ingenious and greatly simplified, which reduces the production cost and has a more compact structure.

[0019] 2. The X-axis driving mechanism is used to drive the X-axis rotating frame to rotate around the X-axis, and the Y-axis driving mechanism is used to drive the left prism assembly and the right prism assembly to rotate around the Y-axis synchronously, so that the left prism assembly and the right prism assembly are synchronously linked, reducing the control difficulty and ensuring the imaging quality.

[0020] 3. Other advantages of the utility model are described in detail in the embodiment section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the optical schematic diagram of existing binoculars;

[0022] Figure 2 is a schematic diagram of a prism assembly of an existing binoculars;

[0023] Figure 3 for Figure 2 A top view of

[0024] Figure 4 It is a three-dimensional diagram of the utility model;

[0025] Figure 5 It is an exploded view of the utility model;

[0026] Figure 6 It is a side view of the utility model;

[0027] Figure 7 yes Figure 6 AA section view;

[0028] Figure 8 This is a three-dimensional diagram of the utility model after omitting the installation frame;

[0029] Fig. 9 This is a top view of the utility model after omitting the installation frame;

[0030] Fig.10 yes Fig. 9 BB cross-sectional view;

[0031] Fig.11 It is a three-dimensional diagram of a parallelogram mechanism composed of a connecting rod, a left prism assembly, and a right prism assembly of the utility model;

[0032] Fig.12 It is a circuit block diagram of the X-axis driving mechanism or the Y-axis driving mechanism of the utility model. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Example:

[0035] like Figures 4 to 11 As shown, the binocular inverted prism image stabilization module provided by the present embodiment, which is linked to a parallelogram mechanism, is characterized by comprising a mounting frame 1, an X-axis rotating frame 2, a left prism assembly 3, a right prism assembly 4, a left Y pivot axis 5, a right Y pivot axis 6, an X pivot axis 7, a connecting rod 8, an X-axis driving mechanism 9 and a Y-axis driving mechanism 10, wherein:

[0036] The X-axis rotating frame 2 is nested in the mounting frame 1 and is rotatably connected to the left and right sides of the mounting frame 1 by using the X-pivot shafts 7 on both sides;

[0037] The left prism assembly 3 is nested inside the X-axis rotating frame 2 and is rotatably connected to the upper and lower ends of the X-axis rotating frame 2 by means of the left Y pivot shaft 5;

[0038] The right prism assembly 4 is nested inside the X-axis rotating frame 2 and is rotatably connected to the upper and lower ends of the X-axis rotating frame 2 by means of the right Y pivot shaft 6;

[0039] The left Y-pivot axis 5 is located at the center of the left prism assembly 3, and the right Y-pivot axis 6 is located at the center of the right prism assembly 4. A first hinge fulcrum 31 and a second hinge fulcrum 41 are respectively arranged near the edge of the end surfaces of the left prism assembly 3 and the right prism assembly 4. Both ends of the connecting rod 8 are respectively hinged to the first hinge fulcrum 31 and the second hinge fulcrum 41. The connecting rod 8, the left prism assembly 3, and the right prism assembly 4 form a parallelogram mechanism to move in conjunction with each other.

[0040] The X-axis driving mechanism 9 is used to drive the X-axis rotating frame 2 to rotate around the X-axis, and the Y-axis driving mechanism 10 is used to drive the left prism assembly 3 and the right prism assembly 4 to rotate around the Y-axis synchronously and linked.

[0041] Figure 7 and Fig.11 The XYZ coordinate system is shown in the figure, wherein the direction of the Z axis is along the optical axis of the telescope, the X axis is the horizontal direction, and the Y axis is the vertical direction. When the X axis driving mechanism 9 is used to drive the X axis rotating frame 2 to rotate around the X axis, the left prism assembly 3 and the right prism assembly 4 are both installed on the X axis rotating frame 2, so they rotate around the X axis together, thus realizing the synchronization of the X axis rotation; when the Y axis driving mechanism 10 is used to drive the left prism assembly 3 and the right prism assembly 4 to rotate around the Y axis synchronously, since the connecting rod 8, the left prism assembly 3, and the right prism assembly 4 form a parallelogram mechanism to be linked, the Y axis driving mechanism 10 drives the left and right movement of the connecting rod 8, realizing the current situation of the left prism assembly 3 and the right prism assembly 4 synchronously rotating around the Y axis. Moreover, the left prism assembly 3 and the right prism assembly 4 rotate independently around their respective left Y pivot shafts 5 and right Y pivot shafts 6, respectively, and no front-to-back displacement difference in the Z axis direction is generated, thereby ensuring the quality of imaging. The utility model only needs two sets of driving mechanisms to complete the rotation compensation of the X-axis and the rotation compensation of the Y-axis. The structural design is ingenious and greatly simplified, which reduces the production cost and has a more compact structure. The X-axis driving mechanism is used to drive the X-axis rotating frame to rotate around the X-axis, and the Y-axis driving mechanism is used to drive the left prism assembly and the right prism assembly to rotate around the Y-axis synchronously, so that the left prism assembly and the right prism assembly are synchronously linked, which reduces the control difficulty and ensures the imaging quality.

[0042] The above-mentioned left prism assembly 3 and right prism assembly 4 both include a half pentaprism 101, a roof prism 102 and a mounting seat 103. The half pentaprism 101 and the roof prism 102 are nested and mounted in the mounting seat 103, and the structure is simple, reasonable and modular.

[0043] The X-axis driving mechanism 9 and the Y-axis driving mechanism 10 mentioned above both adopt electromagnetic coil drivers, which are simple and convenient to control and have relatively low cost.

[0044] The above-mentioned installation frame 1 and X-axis rotation frame 2 are rectangular frames with simple structure and easy manufacturing.

[0045] The screw mounting seats 11 are arranged at the corners of the mounting frame 1. The mounting frame 1 can be mounted inside the lens barrel of the binoculars by screwing the screws on the screw mounting seats 11. The mounting frame 1 is easy to install and use and has a high degree of integration.

[0046] like Fig.12As shown, each electromagnetic coil driver includes a circuit board and a magnet. The circuit board integrates a single-chip microcomputer MCU, a Hall sensor, a driving circuit and an electromagnetic coil. When the gyroscope sensor installed in the telescope detects jitter, it is assumed that the gyroscope sensor sends the rotation angle signal of the X-axis to the single-chip microcomputer MCU. After the single-chip microcomputer MCU calculates the compensation data according to the rotation angle signal, it uses the driving circuit to drive the electromagnetic coil to control the current direction and current size of the electromagnetic coil. The electromagnetic coil and the magnet attract or repel each other, and the X-axis rotating frame 2 on which the magnet is installed rotates for compensation. The Hall sensor detects the rotation angle signal of the X-axis rotating frame 2 and feeds it back to the single-chip microcomputer MCU, thereby forming a closed-loop control and finally achieving compensation. The principle of this electromagnetic coil driver has been described in detail in the patent No. 202311520311.6 and the name: A binocular anti-shake telescope and its control method, which will not be described here. And the electromagnetic coil driver is not the core of this patent protection. The core of this patent protection is the mechanical linkage mechanism, which has been described in detail above.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A binocular inverted prism image stabilization module composed of a parallelogram mechanism, characterized by: The invention comprises a mounting frame (1), an X-axis rotating frame (2), a left prism assembly (3), a right prism assembly (4), a left Y pivot axis (5), a right Y pivot axis (6), an X pivot axis (7), a connecting rod (8), an X-axis driving mechanism (9) and a Y-axis driving mechanism (10), wherein: The X-axis rotating frame (2) is nested in the mounting frame (1) and is rotatably connected to the left and right sides of the mounting frame (1) by means of X-pivot shafts (7) on both sides; The left prism assembly (3) is nested inside the X-axis rotating frame (2) and is rotatably connected to the upper and lower ends of the X-axis rotating frame (2) by means of a left Y pivot shaft (5); The right prism assembly (4) is nested inside the X-axis rotating frame (2) and is rotatably connected to the upper and lower ends of the X-axis rotating frame (2) by means of a right Y pivot shaft (6); The left Y-pivot axis (5) is located at the center of the left prism assembly (3), and the right Y-pivot axis (6) is located at the center of the right prism assembly (4). A first hinge fulcrum (31) and a second hinge fulcrum (41) are respectively arranged on the end surfaces of the left prism assembly (3) and the right prism assembly (4) near the edge. The two ends of the connecting rod (8) are respectively hinged to the first hinge fulcrum (31) and the second hinge fulcrum (41). The connecting rod (8), the left prism assembly (3), and the right prism assembly (4) form a parallelogram mechanism and move in conjunction with each other. The X-axis driving mechanism (9) is used to drive the X-axis rotating frame (2) to rotate around the X-axis, and the Y-axis driving mechanism (10) is used to drive the left prism assembly (3) and the right prism assembly (4) to rotate around the Y-axis synchronously.

2. The binocular inverted prism image stabilization module with a parallelogram mechanism according to claim 1, characterized in that: The left prism assembly (3) and the right prism assembly (4) both include a half pentaprism (101), a roof prism (102) and a mounting seat (103), wherein the half pentaprism (101) and the roof prism (102) are nested and mounted in the mounting seat (103).

3. The binocular inverted prism image stabilization module with a parallelogram mechanism according to claim 1 or 2, characterized in that: Both the X-axis driving mechanism (9) and the Y-axis driving mechanism (10) adopt electromagnetic coil drivers.

4. The binocular inverted prism image stabilization module with a parallelogram mechanism according to claim 1 or 2, characterized in that: The mounting frame (1) and the X-axis rotation frame (2) are rectangular frames.

5. The binocular inverted prism image stabilization module with a parallelogram mechanism according to claim 4 is characterized in that: A screw mounting seat (11) is arranged at a corner of the mounting frame (1), and the mounting frame (1) can be mounted inside the lens barrel of the binoculars by screwing the screw mounting seat (11) with a screw.

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