WO2017020245A1

WO2017020245A1 - Sports camera having lens stabilization function

Info

Publication number: WO2017020245A1
Application number: PCT/CN2015/086031
Authority: WO
Inventors: 魏承赟
Original assignee: 桂林飞宇电子科技有限公司
Priority date: 2015-08-04
Filing date: 2015-08-04
Publication date: 2017-02-09

Abstract

A sports camera having a lens (1) stabilization function comprises a lens (1) and an image sensor (3) disposed behind the lens (1). The image sensor (3) is electrically connected to an image circuit (6-2). The sports camera further comprises two motors in spatial orthogonal distribution, magnetic encoders, and a motor control circuit (6-1). The two motors are an X-axis motor (4-2) for controlling pitching movement and a Y-axis motor (4-1) for controlling roll movement. A rotor output shaft of the X-axis motor (4-2) is connected to a stator of the Y-axis motor (4-1). An attitude plate (2) is connected to a side surface of the image sensor (3) and is connected to the stator of the Y-axis motor (4-1). The image sensor (3) is connected to the rotor of the Y-axis motor (4-1). There are two magnetic encoders. The sports camera can satisfy photographing requirements of a user in sports activities, and the user can take a good picture or make a good video without needing to keep the camera still or always keep the camera moving at the same speed of a moving object.

Description

A motion camera with lens stabilization function

Technical field

The present invention relates to a camera, and more particularly to a motion camera, and more particularly to a motion camera with a lens stabilization function.

Background technique

A known motion camera is composed of a lens, an image sensor, a circuit portion, and a casing. A lens is an imaging system that combines an object into an optical image; an image sensor is a semiconductor device that converts an optical image into an electrical signal; the electronic portion includes a light metering, display, focusing, and other system. The motion camera can meet the user's shooting needs in sports activities. However, existing sports cameras need to keep the camera still or the camera must always move at the same speed as the moving body, and it takes a certain shooting skill to take good photos and videos.

Summary of the invention

In order to overcome the insufficiency of the existing motion camera that needs to keep the camera stationary or the camera to always keep moving at the same speed as the moving body, the present invention provides a motion camera with a lens stabilization function, which not only satisfies the user in sports activities. The shooting needs, and does not need to keep the camera still or the camera should always move at the same speed as the moving body, and can also take good photos and videos.

The technical solution adopted by the present invention to solve the technical problem thereof is:

A motion camera with lens stabilization function includes a lens 1 and an image sensor 3 disposed behind the lens 1. The image sensor 3 is electrically connected to the image circuit 6-2, which is different from the prior art:

Two motors that are orthogonally distributed in space. The two motors are the X-axis motor 4-2 that controls the pitch motion and the Y-axis motor 4-1 that controls the roll motion. The rotor output shaft of the X-axis motor 4-2. Connected to the stator of the Y-axis motor 4-1;

The attitude plate 2 is connected to the side of the image sensor 3 and connected to the stator of the Y-axis motor 4-1; the image sensor 3 is connected to the rotor of the Y-axis motor;

Magnetic encoder, the magnetic encoder is two, respectively X-axis magnetic encoder 5-2 and Y-axis magnetic encoder 5-1, X-axis magnetic encoder 5-2 set in X-axis motor 4-2 shell a rear end portion of the body, the Y-axis magnetic encoder 5-1 is disposed at a rear end portion of the housing of the Y-axis motor 4-1;

The motor control circuit 6-1, the X-axis motor 4-2, the Y-axis motor 4-1 are electrically connected to the motor control circuit 6-1, and the motor control circuit 6-1 is connected to the image circuit 6-2.

The motor control circuit 6-1 includes a Micro Control Unit (MCU), a motor drive circuit connected to the MCU, a magnetic encoder, a serial communication circuit, and a power management module, and the magnetic encoder and the set The permanent magnets on the rotor shaft of the corresponding motor are mutually sensed, and the rotation angle and the rotation speed of the motor are measured, and the motor The drive circuit is connected to the motor.

The camera's control of the X and Y axis motors through the control circuit not only controls the rotation of the lens in two axial directions, but also provides timely angle correction. When the angle of the shooting device is deviated, timely compensation is achieved to achieve stable shooting. .

The beneficial effect of the camera is that it can stably capture the lens while satisfying the user's shooting needs in sports activities, and has lower requirements on the user's shooting skills, and has a simple structure and convenient carrying.

DRAWINGS

1 is a perspective view showing the internal structure of a motion camera in an embodiment;

Figure 2 is a front elevational view showing the internal structure of the motion camera in the embodiment;

Figure 3 is a block diagram showing the circuit components of the motor control circuit.

In the figure, 1. Lens 2. Attitude plate 3. Sensor 4-1. Y-axis motor 4-2. X-axis motor 5-1. Y-axis magnetic encoder 5-2. X-axis magnetic encoder 6-1. Motor Control circuit 6-2. Image circuit 7. Battery case.

detailed description

The content of the present invention is further described below with reference to the accompanying drawings and embodiments, but is not intended to limit the invention.

Example:

Referring to FIG. 1 and FIG. 2, a motion camera with a lens stabilization function includes a lens 1 and an image sensor 3 disposed behind the lens 1. The image sensor 3 is electrically connected to the image circuit 6-2, and further includes

As shown in FIG. 3, the motor control circuit 6-1 includes an MCU, a motor drive circuit connected to the MCU, a magnetic encoder, a serial communication circuit, and a power management module, and the magnetic encoder and the corresponding motor are disposed. The permanent magnets on the rotor shaft are mutually inductive, and the rotation angle and the rotation speed of the motor are measured, and the motor drive circuit is connected to the motor.

Specifically, the image sensor 3 is a CMOS image sensor.

Also includes a battery case 7, the image circuit 6-2 and the motor control circuit 6-1 are separately powered, and the power supply is a battery, and the power is The pool is placed in the battery case 7, the circuit board of the motor control circuit 6-1 is overlapped with the side end of the battery case 7, the X-axis motor 4-2 is disposed on the side end of the battery case 7, and the circuit board of the image circuit 6-2 is set. Next to the X-axis motor 4-2, the image circuit 6-2 circuit board is connected to the motor control circuit 6-1 circuit board.

The CMOS image sensor is connected to the image circuit 6-2 by a flexible circuit cable, and the Y-axis motor 4-1 and the X-axis motor 4-2 are respectively connected to the motor control circuit 6-1 by a flexible circuit cable.

The lens 1, the CMOS image sensor and the image circuit 6-2 are imaging portions of the motion camera, and the motor control circuit 6-1 senses the rotation of the motor by mutual induction between the magnetic encoder and the permanent magnets disposed on the rotor shaft of the corresponding motor. The angle and the rotation speed are controlled by the motor drive circuit to control the attitude plate 2 and the X-axis motor 4-2 and the Y-axis motor 4-1, thereby controlling the lens of the camera to achieve the function of stabilizing the shooting lens.

Claims

A motion camera with lens stabilization function, comprising a lens and an image sensor disposed behind the lens, wherein the image sensor is electrically connected to the image circuit, and is characterized in that:

Two motors orthogonally distributed in space, the two motors are an X-axis motor for controlling the pitch motion and a Y-axis motor for controlling the roll motion, and the rotor output shaft of the X-axis motor is connected to the stator of the Y-axis motor;

The attitude plate is connected to the side of the image sensor and connected to the stator of the Y-axis motor; the image sensor is connected to the rotor of the Y-axis motor;

The magnetic encoder has two magnetic encoders, an X-axis magnetic encoder and a Y-axis magnetic encoder, and the X-axis magnetic encoder is disposed at the rear end of the X-axis motor housing, and the Y-axis magnetic encoder Provided at the rear end of the Y-axis motor housing;

The motor control circuit, the X-axis motor and the Y-axis motor are electrically connected to the motor control circuit, and the motor control circuit is connected to the image circuit.
The motion camera with lens stabilization function according to claim 1, further comprising a battery case, the circuit board of the motor control circuit is overlapped with the side end of the battery case, and the X-axis motor is disposed on the side end of the battery case, the image The circuit board of the circuit is placed beside the X-axis motor, and the image circuit board is connected to the motor control circuit board.