CN-224232028-U - Parallel-driven binocular anti-shake assembly prism

Abstract

The utility model provides a parallel-driven binocular anti-shake assembly prism, which relates to the technical field of optical image stabilization and comprises a left prism shell and a right prism shell which are symmetrically arranged and respectively installed in a rotating frame through rotating shaft bearings, a bridging connecting rod, an outer shaft magnetic steel and an inner shaft sensing magnetic steel, wherein two ends of the bridging connecting rod are connected with the left prism shell and the right prism shell through bearings and drive the two prism shells to synchronously rotate around respective rotating shafts, the left side wall and the right side wall of the rotating frame are hinged with an outer frame through the side bearings, an integrated circuit board is integrated with an inner shaft driving coil, an outer shaft driving coil, an inner shaft Hall element, an outer shaft Hall element and a gyroscope sensor on the circuit board, the inner shaft driving magnetic steel is arranged in the middle of the connecting rod and corresponds to the inner shaft driving coil on the circuit board, and the inner shaft sensing magnetic steel is arranged on the side wall of the left prism shell or the right prism shell and corresponds to the inner shaft Hall element, and the outer shaft magnetic steel is arranged on the outer frame and corresponds to the outer shaft driving coil and the outer shaft Hall element, and transmission precision is improved.

Inventors

• JIAO ZHITAO

Assignees

• 成都鼎信精控科技有限公司

Dates

Publication Date

20260512

Application Date

20250723

Claims (6)

1. 1. A parallel-driven binocular anti-shake assembly prism, comprising: The left prism shell (1) and the right prism shell (2) which are symmetrically arranged are respectively arranged in the rotating frame (3) through the rotating shaft bearing (4); The two ends of the bridging connecting rod (5) are connected with the left prism shell (1) and the right prism shell (2) through bearings, and the two prism shells are driven to synchronously rotate around respective rotating shafts so as to perform azimuth axis movement; A rotating frame (3) whose left and right side walls are hinged to an outer frame (7) through side bearings (6) to perform pitch axis rotation; The integrated circuit board (8) is fixedly arranged on the rotating frame (3), and an inner shaft driving coil (9), an outer shaft driving coil (10), an inner shaft Hall element (11), an outer shaft Hall element (12) and a gyroscope sensor (13) are integrated on the circuit board (8); the inner shaft driving magnetic steel (14) is arranged in the middle of the connecting rod (5) and corresponds to the inner shaft driving coil (9) on the circuit board (8); the inner shaft sensing magnetic steel (15) is arranged on the side wall of the left prism shell (1) or the right prism shell (2) and corresponds to the inner shaft Hall element (11); An outer shaft magnetic steel (16) is provided on the outer frame (7) and corresponds to the outer shaft driving coil (10) and the outer shaft Hall element (12).
2. 2. The parallel-driving binocular anti-shake assembly prism according to claim 1, wherein the rotating shaft bearings (4) of the left prism housing (1) and the right prism housing (2) are of an up-down double-row arrangement structure, and the bearings at two ends of the connecting rod (5) are of a left-right arrangement structure.
3. 3. A parallel-driven binocular anti-shake assembly prism according to claim 2, characterized in that the inner shaft sensing magnet steel (15) is deployed on only a single prism housing, transmitting motion to the other prism housing through a synchronization link (5), biprism angle synchronization detection.
4. 4. A parallel-driven binocular anti-shake assembly prism according to claim 3, wherein the azimuth axis and the pitch axis of the binocular anti-shake assembly prism respectively adopt a split-axis control strategy, wherein the azimuth axis adopts feedforward-feedback composite control, and the pitch axis adopts differential feedback tracking control.
5. 5. A parallel-driven binocular anti-shake assembly prism according to claim 1, characterized in that the hinge bearings of the rotating frame (3) and the outer frame (7) are of a center shaft nested structure.
6. 6. The parallel-driven binocular anti-shake assembly prism according to claim 1, wherein the binocular anti-shake assembly prism is arranged in an optical path between an objective lens and an eyepiece of the binocular telescope, the binocular telescope further comprises a focusing assembly and a housing, and a battery compartment and a switch are arranged on the housing to supply power to the integrated circuit board (8).

Description

Parallel-driven binocular anti-shake assembly prism Technical Field The utility model relates to the technical field of optical image stabilization, in particular to a binocular anti-shake assembly prism which is suitable for binocular telescope and other equipment needing double-light-path synchronization anti-shake, realizes the synchronous motion of a biprism through a parallel link mechanism and adopts a split-axis control strategy to perform parallel driving. Background In modern precision optical instruments, especially high-precision equipment such as telescopes, the anti-shake technology is an important means for improving the stability and accuracy of observation. With the development of scientific technology, research and application of anti-shake systems are gradually in depth, but most of the existing anti-shake technologies still have some defects at present, especially in the aspects of anti-shake effect, hardware complexity and system stability. The prior anti-shake telescope generally adopts a mode that a complex gyroscope sensor is directly fixedly connected with a prism or a lens. The method needs a plurality of circuit boards for connection, which not only increases the complexity of the system, but also affects the reliability and stability of the system to a certain extent. Moreover, the transmission mechanism of the traditional anti-shake telescope generally depends on a screw fixing mode to ensure transmission precision, and the mode is difficult to simplify the assembly process while improving the transmission precision. In addition, the control method of the conventional anti-shake system on the rotating shaft mostly depends on a complex feedback mechanism, and the control method of the inner shaft and the outer shaft often need to be carried out separately, which not only increases the complexity of the system, but also can influence the synchronism and the accuracy in actual use. Therefore, there are still many problems to be solved in the prior art, such as simplifying hardware design, improving transmission accuracy, optimizing control method, etc. Disclosure of utility model Therefore, the utility model aims to provide a parallel-driving binocular anti-shake assembly prism, which can effectively simplify hardware configuration, improve transmission precision, simplify a control scheme and realize more accurate anti-shake control. The utility model breaks through the limitation of the traditional anti-shake technology through an innovative transmission mechanism, a simplified control scheme and an optimized bearing assembly mode, has wide application prospect, and is particularly suitable for precise optical instruments. In order to achieve the above purpose, the present utility model provides the following technical solutions: Based on the above object, the present utility model provides a parallel-driving binocular anti-shake assembly prism, comprising: The left prism shell and the right prism shell which are symmetrically arranged are respectively arranged in the rotating frame through rotating shaft bearings; The two ends of the bridging connecting rod are connected with the left prism shell and the right prism shell through bearings, and the two prism shells are driven to synchronously rotate around respective rotating shafts so as to realize the movement of the azimuth shaft; The left side wall and the right side wall of the rotating frame are hinged with the outer frame through side bearings, so that the pitching shaft is rotated; The integrated circuit board is fixedly arranged on the rotating frame, and an inner shaft driving coil, an outer shaft driving coil, an inner shaft Hall element, an outer shaft Hall element and a gyroscope sensor are integrated on the circuit board; the inner shaft driving magnetic steel is arranged in the middle of the connecting rod and corresponds to the inner shaft driving coil on the circuit board; The inner shaft sensing magnetic steel is arranged on the side wall of the left prism shell or the right prism shell and corresponds to the inner shaft Hall element; And the outer shaft magnetic steel is arranged on the outer frame and corresponds to the outer shaft driving coil and the outer shaft Hall element. As a further scheme of the utility model, the rotating shaft bearings of the left prism shell and the right prism shell adopt an up-down double-row arrangement structure so as to eliminate the front-back direction swinging error of the prism shell, and the bearings at the two ends of the connecting rod adopt a left-right arrangement structure so as to reduce the rotating radius of the azimuth shaft. As a further scheme of the utility model, the inner shaft sensing magnetic steel is only arranged on a single prism shell, and the synchronous connecting rod is used for transmitting motion to the other prism shell, so that synchronous detection of the angle of the double prisms is realized. As a further scheme of the utility model, the azimu