CN219065879U

CN219065879U - Prism holder and image stabilizing telescope formed by same

Info

Publication number: CN219065879U
Application number: CN202320138611.7U
Authority: CN
Inventors: 焦志涛
Original assignee: Chengdu Dingxin Precision Control Technology Co ltd
Current assignee: Chengdu Dingxin Precision Control Technology Co ltd
Priority date: 2023-01-15
Filing date: 2023-01-15
Publication date: 2023-05-23
Anticipated expiration: 2033-01-15

Abstract

The utility model discloses a prism holder and an image stabilizing telescope formed by the same, wherein the prism holder comprises a holder mechanism, an erecting prism arranged on the holder mechanism, a gyroscope circuit board arranged on the erecting prism and a gyroscope arranged on the gyroscope circuit board; the gyroscope circuit board is electrically connected with the cradle head mechanism. The image stabilizing telescope comprises a telescope body and the prism holder. According to the utility model, through the sensing data of the gyroscope and the magnetic sensor, the positive prism is controlled to rotate to a proper angle, so that the imaging stability of the telescope is maintained; and the lens holder can be moved backwards to be close to the ocular, so that the distance between the erecting prism and the objective lens can be greatly increased, and the aperture of the objective lens can be correspondingly increased, thereby obviously improving the optical quality.

Description

Prism holder and image stabilizing telescope formed by same

Technical Field

The utility model relates to the technical field of holder control, in particular to a prism holder and an image stabilizing telescope formed by the prism holder.

Background

At present, an image stabilizing telescope generally realizes image stabilization by the following methods:

1. by lens translation or deformation principle: the gyroscope is fixedly connected with the telescope body, and when the movement of the telescope body is detected, the lens is controlled to translate or change an included angle, so that the light path is stable. The method is small in size, but small in action angle, and when the shaking range of the telescope is large, the telescope can exceed the effective range, so that the effect is obviously reduced, and even the image stabilization fails. The technical principle is mostly used by the image stabilizing telescope of Japan Canon.

2. Adopts the principle of inertial stabilization of an erecting prism: the positive prism is arranged on the double-shaft stable cradle head, and the inertia stability of the positive prism is kept through the control mode of angular velocity feedback of the gyroscope. The method has a larger image stabilizing angle range, but according to the telescope optical principle, the prism needs to be close to the objective lens with a specific distance, so that the difference of the light passing apertures of the prism and the objective lens cannot be too large. For example, patent US14258807 adopts the principle, and the related products are image stabilizing telescopes of companies such as japan fuji.

In order to solve the above problems, the present application provides a prism holder and an image stabilizing telescope comprising the same.

Disclosure of Invention

The utility model aims to solve the problems and provides a prism holder and an image stabilizing telescope formed by the prism holder.

The aim of the utility model is achieved by the following technical scheme: a prism cradle head comprises a cradle head mechanism, an erecting prism arranged on the cradle head mechanism, a gyroscope circuit board arranged on the erecting prism, and a gyroscope arranged on the gyroscope circuit board; the gyroscope circuit board is electrically connected with the cradle head mechanism.

The cradle head mechanism comprises a base assembly, an azimuth axis control assembly connected with the base assembly and a pitching axis control assembly connected with the azimuth axis control assembly; the positive image prism is installed on the pitching axis control component, the azimuth axis control component can control the positive image prism to swing on the azimuth axis, and the pitching axis control component can control the positive image prism to swing on the pitching axis.

The azimuth axis control assembly includes: azimuth axis motor, azimuth axis magnet steel, azimuth axis magnetic sensor and cloud platform control circuit board.

The rotor of the azimuth shaft motor is arranged on the base assembly, and the stator of the azimuth shaft motor is arranged on the cradle head control circuit board; the azimuth axis magnetic steel is arranged on a rotor of the azimuth axis motor, the azimuth axis magnetic sensor is arranged on the cradle head control circuit board, and the azimuth axis magnetic steel and the azimuth axis magnetic sensor are arranged oppositely; the azimuth axis magnetic sensor, the azimuth axis motor and the gyroscope circuit board are electrically connected with the cradle head control circuit board, the cradle head control circuit board is electrically connected with the base component, and the cradle head control circuit board is connected with the pitching axis control component.

The pitch axis control assembly includes: the pitch axis magnetic induction circuit board, the pitch axis magnetic steel, the pitch axis magnetic sensor and the pitch axis motor.

The rotor of the pitching axis motor is arranged on the gyroscope circuit board, and the stator of the pitching axis motor is arranged on the pitching axis magnetic induction circuit board; the pitching axis magnetic steel is arranged on a rotor of the pitching axis motor, the pitching axis magnetic sensor is arranged on the pitching axis magnetic induction circuit board, and the pitching axis magnetic steel and the pitching axis magnetic sensor are arranged oppositely; the pitching axis magnetic sensor is electrically connected with the pitching axis magnetic induction circuit board, the pitching axis motor is electrically connected with the cradle head control circuit board, and the pitching axis magnetic induction circuit board is connected with the cradle head control circuit board.

The base assembly comprises a base circuit board, a rotor of the azimuth shaft motor is arranged on the base circuit board, and the cradle head control circuit board is electrically connected with the base circuit board; the base circuit board is provided with a USB connector and a control key.

The positive prism adopts a Biohan roof prism group, an Abbe prism or a Porro prism.

The utility model also discloses an image stabilizing telescope which comprises a telescope body and the prism holder.

The telescope body comprises a mounting shell, an objective lens and an eyepiece; the objective lens and the ocular lens are respectively connected to two opposite ends of the installation shell, and the prism holder is installed inside the installation shell.

The mounting shell comprises a shell body and a shell cover detachably mounted on the shell body; and the shell cover is provided with an avoidance hole for a USB connector and a control key on the prism holder to pass through.

Compared with the prior art, the application has the following beneficial effects: according to the utility model, through the sensing data of the gyroscope and the magnetic sensor, the positive prism is controlled to rotate to a proper angle, so that the imaging stability of the telescope is maintained; and the lens holder can be moved backwards to be close to the ocular, so that the distance between the erecting prism and the objective lens can be greatly increased, and the aperture of the objective lens can be correspondingly increased, thereby obviously improving the optical quality.

Additional features of the present application will be set forth in part in the description which follows. Additional features will be set forth in part in the description which follows and in the accompanying drawings, or in part will be apparent to those skilled in the art from the description, or may be learned by the production or operation of the embodiments. The features disclosed in this application may be implemented and realized in the practice or use of the various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not limit the application. Like reference symbols in the various drawings indicate like elements. Wherein,,

fig. 1 is a structural diagram of a prism holder of the present utility model.

Fig. 2 is an exploded view of the image stabilizing telescope of the present utility model.

The reference numerals in the above figures are: 1-positive prism, 2-gyroscope circuit board, 3-gyroscope, 4-pitching axis motor, 5-pitching axis magnetic induction circuit board, 6-pitching axis magnetic steel, 7-pitching axis magnetic sensor, 8-base circuit board, 9-azimuth axis motor, 10-USB connector, 11-azimuth axis magnetic steel, 12-control button, 13-cradle head control circuit board, 14-azimuth axis magnetic sensor, 15-objective lens, 16-shell, 17-eyepiece, 18-lithium battery, 19-shell cover, 20-prism cradle head.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that if the terms "first," "second," and the like are referred to in the specification, claims, and drawings of the present application, they are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, if the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are referred to, the indicated azimuth or positional relationship is based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Further, in this application, the terms "mounted," "configured," "provided," "connected," "sleeved," and the like are to be construed broadly if they refer to. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

As shown in fig. 1, the present embodiment discloses a prism holder including a holder mechanism, a erecting prism 1 mounted on the holder mechanism, a gyro circuit board 2 mounted on the erecting prism 1, and a gyroscope 3 mounted on the gyro circuit board 2.

The gyroscope 3 is electrically connected with the gyroscope circuit board 2, and the gyroscope circuit board 2 is electrically connected with the tripod head mechanism. The gyroscope 3 is used for acquiring the pitch axis inertial angular velocity and the azimuth axis inertial angular velocity of the erecting prism 1, and transmitting the pitch axis inertial angular velocity and the azimuth axis inertial angular velocity to the tripod head mechanism through the gyroscope circuit board 2.

Specifically, the cradle head mechanism comprises a base assembly, an azimuth axis control assembly connected with the base assembly, and a pitching axis control assembly connected with the azimuth axis control assembly.

When the erecting prism 1 is installed, the erecting prism 1 is installed on a pitching axis control component, the azimuth axis control component can control the erecting prism 1 to swing on the azimuth axis, and the pitching axis control component can control the erecting prism 1 to swing on the pitching axis.

As shown in fig. 1, the base assembly includes a base circuit board 8. The base circuit board 8 is provided with a USB connector 10 and a control key 12. When in use, external equipment can acquire the data of the prism holder through the USB connector 10. The control key 12 is used for controlling the on/off of the prism holder, and can also be used for adjusting the working mode of the prism holder. In addition, an indicator light can be further arranged on the base circuit board 8 and used for displaying the working state of the prism holder.

Specifically, the azimuth axis control assembly includes: azimuth axis motor 9, azimuth axis magnet steel 11, azimuth axis magnetic sensor 14 and cradle head control circuit board 13.

When in installation, the rotor of the azimuth shaft motor 9 is installed on the base circuit board 8, and the stator of the azimuth shaft motor is installed on the cradle head control circuit board 13. The azimuth axis magnetic steel 11 is installed on the rotor of the azimuth axis motor 9, the azimuth axis magnetic sensor 14 is installed on the cradle head control circuit board 13, and the azimuth axis magnetic steel 11 is arranged opposite to the azimuth axis magnetic sensor 14. The azimuth axis magnetic sensor 14, the azimuth axis motor 9 and the gyroscope circuit board 2 are electrically connected with the cradle head control circuit board 13, and the cradle head control circuit board 13 is connected with the pitching axis control assembly.

In addition, the pitch axis control assembly includes: pitch axis magnetic induction circuit board 5, pitch axis magnet steel 6, pitch axis magnetic sensor 7 and pitch axis motor 4.

When in installation, the rotor of the pitching axis motor 4 is installed on the gyroscope circuit board 2, and the stator of the pitching axis motor is installed on the pitching axis magnetic induction circuit board 5. The pitching axis magnetic steel 6 is arranged on the rotor of the pitching axis motor 4, the pitching axis magnetic sensor 7 is arranged on the pitching axis magnetic induction circuit board 5, and the pitching axis magnetic steel 6 and the pitching axis magnetic sensor 7 are arranged opposite to each other. The pitching axis magnetic sensor 7 is electrically connected with the pitching axis magnetic induction circuit board 5, the pitching axis motor 4 is electrically connected with the cradle head control circuit board 13, and the pitching axis magnetic induction circuit board 5 is electrically connected with the cradle head control circuit board 13.

In the implementation, the base circuit board 8 is fixed with an external telescope, and in the above structure, the pan/tilt control circuit board 13 can control the azimuth axis motor 9 and the elevation axis motor 4 to rotate, so as to drive the erecting prism 1 to swing on the azimuth axis and the elevation axis, so that the erecting prism 1 can counteract the influence caused by external shake. When the azimuth axis motor 9 and the pitching axis motor 4 rotate, the azimuth axis magnetic steel 11 and the pitching axis magnetic steel 6 are driven to rotate, and because the magnetic steel and the magnetic sensor are oppositely arranged, the azimuth axis magnetic sensor 14 and the pitching axis magnetic sensor 7 can detect the rotation angle of the azimuth axis motor 9 and the pitching axis motor 4 by sensing the magnetic changes of the azimuth axis magnetic steel 11 and the pitching axis magnetic steel 6 respectively, the detected rotation angle is transmitted to the cradle head control circuit board 13, and the cradle head control circuit board 13 controls the rotation of the positive image prism through the rotation angle of the azimuth axis motor 9 and the pitching axis motor 4 and the pitching axis inertial angular velocity and the azimuth axis inertial angular velocity of the positive image prism 1 so as to offset external shaking. In specific implementation, the azimuth axis motor 9 and the pitch axis motor 4 may set a rotation limit range of ±5° to ±8°.

The erecting prism 1 can be realized by using a Buchner prism group, an Abbe prism or a Porro prism, and the erecting prism 1 of the embodiment is realized by using a Buchner prism component with the specification of 16 mm. The azimuth axis motor 9 and the pitch axis motor 4 can adopt ultra-thin miniature brushless motors with the stator specification of 1103. Gyroscope 3 employs an ICM20602 gyroscope sensor. The pitch axis magnetic sensor 7 and the azimuth axis magnetic sensor 14 can each be implemented using a 14-bit magnetic encoder chip MT 6816. The cradle head control circuit board 13 is used as a controller of the cradle head, and a GD32F303 singlechip is used as a processor to receive and process information of each sensor and control actions of each motor by matching with a DRV8839 motor driving chip. The base circuit board 8 is also electrically connected with the cradle head control circuit board 13, and can transmit data on the cradle head control circuit board to external equipment through a USB connector thereon. The base circuit board 8 is also provided with a lithium ion battery to supply power to each motor, each sensor and each chip, and the on-off of the power supply can be controlled through a control key on the base circuit board to control the on-off of the prism holder.

Example 2

The present embodiment is an image stabilizing telescope composed of the prism holder in embodiment 1, specifically, as shown in fig. 2, it includes a telescope body and the prism holder 20 in embodiment 1.

Specifically, the telescope body includes a mounting housing, an objective lens 15, and an eyepiece 17. The objective lens 15 and the eyepiece lens 17 are respectively connected to opposite ends of the installation shell, the prism holder 20 is installed inside the installation shell, and the prism holder 20 is located between the objective lens and the eyepiece lens at this time, so that a linear light path is formed among the eyepiece lens 17, the positive prism of the prism holder and the objective lens 15.

The mounting shell comprises a shell 16 and a shell cover 19 detachably mounted on the shell 16; the shell cover 19 is provided with an avoidance hole for the USB connector 10 and the control key 12 on the prism holder 20 to pass through. After the prism holder 20 is installed in the installation shell, the USB connector 10 and the control key 12 on the prism holder can penetrate out of the installation shell from the avoidance hole, so that the operation of people is facilitated.

The objective lens 15 and the eyepiece lens 17 are both lenses with adjustable focus.

When the image stabilizing telescope shakes, the cradle head control circuit board 13 controls the image stabilizing prism to rotate to a proper angle through the sensing data of the gyroscope and the magnetic sensor, so that the imaging stability of the telescope is maintained; and the lens holder can be moved backwards to be close to the ocular, so that the distance between the erecting prism 1 and the objective lens can be greatly increased, and the aperture of the objective lens can be correspondingly increased, thereby obviously improving the optical quality.

As another preferential scheme, two erecting prisms can be arranged on the prism holder in parallel, and then the image stabilizing control of the binoculars can be realized.

It should be noted that all of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except mutually exclusive features and/or steps.

In addition, the foregoing detailed description is exemplary, and those skilled in the art, having the benefit of this disclosure, may devise various arrangements that, although not explicitly described herein, are within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the utility model is defined by the claims and their equivalents.

Claims

1. The prism holder is characterized by comprising a holder mechanism, a positive prism (1) arranged on the holder mechanism, a gyroscope circuit board (2) arranged on the positive prism (1), and a gyroscope (3) arranged on the gyroscope circuit board (2); the gyroscope circuit board (2) is electrically connected with the cradle head mechanism;

the cradle head mechanism comprises a base assembly, an azimuth axis control assembly connected with the base assembly and a pitching axis control assembly connected with the azimuth axis control assembly; the positive image prism (1) is arranged on the pitching axis control component, the azimuth axis control component can control the positive image prism (1) to swing on the azimuth axis, and the pitching axis control component can control the positive image prism (1) to swing on the pitching axis;

the azimuth axis control assembly includes: an azimuth axis motor (9), azimuth axis magnetic steel (11), an azimuth axis magnetic sensor (14) and a cradle head control circuit board (13);

the rotor of the azimuth shaft motor (9) is arranged on the base assembly, and the stator of the azimuth shaft motor is arranged on the cradle head control circuit board (13); the azimuth axis magnetic steel (11) is arranged on a rotor of the azimuth axis motor (9), the azimuth axis magnetic sensor (14) is arranged on the cradle head control circuit board (13), and the azimuth axis magnetic steel (11) and the azimuth axis magnetic sensor (14) are arranged oppositely; the azimuth axis magnetic sensor (14), the azimuth axis motor (9) and the gyroscope circuit board (2) are electrically connected with the cradle head control circuit board (13), the cradle head control circuit board (13) is electrically connected with the base component, and the cradle head control circuit board (13) is connected with the pitching axis control component.

2. The prism pan-tilt of claim 1, wherein the pitch axis control assembly comprises: a pitching axis magnetic induction circuit board (5), pitching axis magnetic steel (6), a pitching axis magnetic sensor (7) and a pitching axis motor (4);

the rotor of the pitching axis motor (4) is arranged on the gyroscope circuit board (2), and the stator of the pitching axis motor is arranged on the pitching axis magnetic induction circuit board (5); the pitching axis magnetic steel (6) is arranged on a rotor of the pitching axis motor (4), the pitching axis magnetic sensor (7) is arranged on the pitching axis magnetic induction circuit board (5), and the pitching axis magnetic steel (6) and the pitching axis magnetic sensor (7) are arranged oppositely; the pitching axis magnetic sensor (7) is electrically connected with the pitching axis magnetic induction circuit board (5), the pitching axis motor (4) is electrically connected with the cradle head control circuit board (13), and the pitching axis magnetic induction circuit board (5) is connected with the cradle head control circuit board (13).

3. The prism holder according to claim 2, wherein the base assembly comprises a base circuit board (8), the rotor of the azimuth axis motor (9) is mounted on the base circuit board (8), and the holder control circuit board (13) is electrically connected with the base circuit board (8); the base circuit board (8) is provided with a USB connector (10) and a control key (12).

4. The prism holder according to claim 1, characterized in that the erecting prism (1) is a group of gizzard prisms, abbe prisms or a bourro prism.

5. An image stabilizing telescope, characterized by comprising a telescope body and a prism holder (20) according to any one of the preceding claims 1-4;

the telescope body comprises a mounting shell, an objective lens (15) and an eyepiece (17); the objective lens (15) and the ocular lens (17) are respectively connected to two opposite ends of the installation shell, and the prism holder (20) is installed inside the installation shell.

6. The image stabilizing telescope according to claim 5, wherein the mounting housing comprises a housing (16) and a cover (19) removably mounted on the housing (16); the shell cover (19) is provided with an avoidance hole for the USB connector (10) and the control key (12) on the prism holder (20) to pass through.