JP2009145637A - Vibration isolation control circuit for imaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration isolation control circuit capable of coping with imaging devices different each other in angles between a lens driving element and a vibration detecting element. <P>SOLUTION: This vibration isolation control circuit is provided with a vibration control equalizer for generating a vibration signal for determining a driving amount of an optical component, based on an output signal from a vibration detecting element 106 for detecting vibration of the imaging device, a position control equalizer for calculating a position signal for determining a driving amount of the optical component, based on an output signal from a position detecting element 102 for detecting a position of the optical component, and a built-in CPU 38 for controlling the vibration control equalizer and the position control equalizer, and the built-in CPU 38 executes coordinate transformation processing of the vibration signal generated in the vibration control equalizer. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an image stabilization control circuit incorporated in an imaging apparatus.

  In recent years, an imaging apparatus such as a digital still camera or a digital video camera has realized high image quality by increasing the number of pixels of an imaging element provided therein. On the other hand, as another method for realizing high image quality of the image pickup apparatus, it is desired that the image pickup apparatus has a camera shake correction function in order to prevent subject shake caused by hand shake with the image pickup apparatus. .

  Specifically, the imaging apparatus includes a detection element such as a gyro sensor, and drives an optical component such as a lens or an imaging element according to an angular velocity component generated by vibration of the imaging apparatus to prevent subject blurring. Accordingly, even when the imaging apparatus vibrates, the vibration component is not reflected in the acquired video signal, and a high-quality video signal without image blur can be acquired.

  FIG. 3 shows a block diagram of a conventional image stabilization control circuit 100 used for realizing the camera shake correction function. The image stabilization control circuit 100 is provided in the imaging apparatus and operates in accordance with control of a main control circuit (not shown) provided in the imaging apparatus. The image stabilization control circuit 100 is connected to the position detection element 102, the lens driving element 104 and the vibration detection element 106.

  The position detection element 102 detects the position of a lens used in the imaging apparatus. The position detection element 102 can be a Hall element, generates an induced current according to the absolute position of the lens, and outputs a voltage signal. The lens driving element 104 can be a voice coil motor. The image stabilization control circuit 100 controls the position of the movable coil of the voice coil motor, that is, the position of the lens by adjusting the voltage value applied to the lens driving element 104. The lens driving element 104 drives the lens in a plane perpendicular to the optical axis of the imaging device. The vibration detection element 106 detects the vibration of the imaging device and outputs the result to the image stabilization control circuit 100. The vibration detection element 106 can be a gyro sensor. An angular velocity signal corresponding to the vibration applied to the imaging device is generated and output to the image stabilization control circuit 100.

  The position detecting element 102, the lens driving element 104, and the vibration detecting element 106 are each preferably composed of at least two elements. For example, a plurality of elements corresponding to a horizontal component and a vertical component are provided on a plane perpendicular to the optical axis of the imaging device, and lens position detection, lens movement, and vibration detection of the imaging device are performed.

  Next, the image stabilization control circuit 100 will be described in detail. The image stabilization control circuit 100 includes a servo circuit 10, a lens driver 12, an analog-digital conversion circuit (ADC) 14, a CPU 16, and a digital-analog conversion circuit (DAC) 18.

  The servo circuit 10 generates a signal for controlling the lens driving element 104 in accordance with the voltage signal output from the position detection element 102. The servo circuit 10 is configured to include an analog filter circuit including an external resistor element, a capacitor, and the like, and a lens driving element so that the optical axis of the lens coincides with the center of the imaging element provided in the imaging device. A signal for controlling 104 is generated. The lens driver 12 generates a lens driving signal for driving the lens driving element 104 based on the signal output from the servo circuit 10.

  The ADC 14 converts the analog angular velocity signal output from the vibration detection element 106 into a digital signal. The CPU 16 generates an angle signal indicating the amount of movement of the imaging device based on the digital angular velocity signal. The CPU 16 is connected to a memory (not shown), and performs an angle signal generation process based on software stored in the memory. The DAC 18 converts the digital angle signal generated by the CPU 16 into an analog signal.

  Here, the servo circuit 10 generates a lens driving signal for driving the lens driving element 104 in accordance with a signal obtained by adding the analog angle signal output from the DAC 18 and the voltage signal output from the position detection element 102. . That is, in order to prevent subject shake due to camera shake, the position of the lens is changed based on an angle signal indicating the amount of movement of the imaging device, thereby suppressing blurring of the subject image on the image sensor. Thus, it is possible to obtain a high-quality video signal while suppressing blurring of the subject image due to camera shake.

  Further, Patent Document 2 discloses a drive circuit that drives the correction optical means along the pan direction and the tilt direction, and a position detection element disposed along a direction inclined by 45 ° with respect to the pan direction and the tilt direction. And an imaging apparatus including the same.

  Note that moving the imaging device in the horizontal direction (pan direction) in accordance with the movement of the subject is referred to as panning operation, and moving in the vertical direction (tilting direction) is referred to as tilting operation.

JP-A-10-213832 JP 2003-75880 A

  Incidentally, in order to improve the processing speed of the image stabilization control circuit, it is desired to replace the servo circuit, the lens driver, and the vibration detection signal processing circuit with a logic circuit capable of digital processing. Furthermore, since the image stabilization control circuit is incorporated in an image sensor such as a digital camera or a lens module of the image sensor, it is necessary to reduce the size as much as possible even when the circuit is made a logic circuit.

  Further, as shown in Patent Document 2, when the relationship between the detection direction of the position detection element, the drive direction of the lens drive element, and the detection direction of the vibration detection element is not parallel to each other, a signal output from the vibration detection element, or a position It is necessary to coordinate-transform the signal output from the detection element in accordance with the lens driving direction. However, the circuit that performs the coordinate conversion processing on the signal output from the vibration detection element and the signal output from the position detection element is relative to the detection direction of the position detection element, the driving direction of the lens driving element, and the detection direction of the vibration detection element. It is necessary to change depending on the angle, and it is difficult to incorporate it as a logic circuit corresponding to various types of imaging devices having different angles.

  An object of the present invention is to provide an image stabilization control circuit that solves the above problems.

  One aspect of the present invention is an anti-vibration control circuit that drives an optical component of an imaging device according to vibration to reduce the influence of vibration on imaging, and the vibration of the imaging device is at least in each of two axial directions. A vibration control equalizer that generates a vibration signal for determining a driving amount of the optical component based on an output signal of a vibration detection element that detects the vibration, and a position for detecting the position of the optical component in each of at least two axial directions A position control equalizer that calculates a position signal for determining a drive amount of at least two axial directions of the optical component based on the output signal of the detection element and the vibration signal, the vibration control equalizer, and the position A built-in CPU that controls a control equalizer, and the built-in CPU includes the vibration signal, the output signal of the position detection element, and the position signal. And performing at least one of the coordinate conversion process.

  Here, the built-in CPU performs coordinate conversion of the vibration signal generated by the vibration control equalizer into a coordinate axis along the drive axis of the optical component, and the position control equalizer outputs the output signal of the position detection element and the It is preferable to calculate the position signal based on the vibration signal coordinate-converted by the built-in CPU.

  Further, the built-in CPU performs coordinate conversion processing of the output signal of the position detection element, and the position control equalizer calculates the position signal based on the output signal of the position detection element coordinate-converted by the built-in CPU. It is good also as what to do. Further, it is preferable that the built-in CPU performs coordinate conversion of the position signal generated by the position control equalizer into a coordinate axis along the drive axis of the optical component.

  ADVANTAGE OF THE INVENTION According to this invention, the image stabilization control circuit which can respond | correspond to several types of imaging device from which a mutually different angle of a position detection element, a lens drive element, and a vibration detection element is realizable.

  As shown in the functional block diagram of FIG. 1, the image stabilization control circuit 200 according to the embodiment of the present invention includes an analog / digital conversion circuit (ADC) 20, an adder circuit 22, a servo circuit 24, a high-pass filter (HPF) 26, a panning circuit. A tilt determination circuit 28, a gain adjustment circuit 30, an integration circuit 32, a centering processing circuit 34, a digital / analog conversion circuit (DAC) 36, and a built-in CPU 38 are included.

  The adder circuit 22 and the servo circuit 24 constitute a position control equalizer. Further, the HPF 26, the pan / tilt determination circuit 28, the gain adjustment circuit 30, the integration circuit 32, and the centering processing circuit 34 constitute a vibration control equalizer.

  The image stabilization control circuit 200 is connected to the position detection element 102, the lens driving element 104, and the vibration detection element 106. These elements are the same as those described in the prior art. In the present embodiment, as shown in FIG. 2, the installation relationship among the position detection element 102, the lens driving element 104, and the vibration detection element 106 is not arranged in parallel directions. The position detection element 102 is arranged so as to have a detection direction along the orthogonal coordinate X1 axis and the Y1 axis having an angle θ1 with respect to the X axis and the Y axis of the lens driven by the lens driving element 104. . Further, the vibration detection element 106 is disposed so as to have a detection direction along the orthogonal coordinate X2 axis and the Y2 axis having an angle θ2 with respect to the X axis and the Y axis of the lens driven by the lens driving element 104. ing. In the present embodiment, the angle θ1 is set to an angle different from the angle θ2. In general, it is preferable that the pan direction coincides with any of the X axis, X1 axis, and X2 axis, and the tilt direction coincides with any of the Y axis, Y1 axis, and Y2 axis.

  The ADC 20 converts an analog voltage signal output from the position detection element 102, for example, a Hall element, into a digital signal. The Hall element generates an induced current corresponding to the magnetic force generated by the magnet fixed to the lens. That is, the Hall element outputs a voltage signal indicating the position of the lens according to the distance from the lens, and the ADC 20 converts the voltage signal into a digital signal and outputs it as a position signal SP. The ADC 20 is configured to output a signal indicating a reference, for example, a digital value indicating “0”, when the optical axis of the lens matches the center of the image sensor provided in the image pickup apparatus.

  Further, the ADC 20 converts an analog angular velocity signal output from the vibration detection element 106, for example, a gyro sensor, into a digital signal. That is, the ADC 20 digitizes and outputs the output signals from the position detection element 102 and the vibration detection element 106 in a time division manner.

  Specifically, as shown in FIG. 2, the X-axis component signal (Gyro-X2) of the vibration detected by the vibration detection element 106 and the X-axis component signal of the lens position detected by the position detection element 102 (Hole-X1), the Y-axis component signal (Gyro-Y2) of the vibration detected by the vibration detection element 106, and the Y-axis component signal (Hole-Y1) of the lens position detected by the position detection element 102. The signal is digitized and output in order.

  The HPF 26 removes the DC component contained in the X2-axis component signal (Gyro-X2) and the Y2-axis component signal (Gyro-Y2) obtained as the angular velocity signal, and reflects the vibration of the imaging device. Extract high-frequency components of the signal.

  The pan / tilt determination circuit 28 detects the pan operation and tilt operation of the imaging apparatus based on the angular velocity signal output from the HPF 26. When the imaging apparatus is moved according to the movement of the subject, the vibration detection element 106 outputs an angular velocity signal corresponding to the movement. However, the fluctuation of the angular velocity signal due to the pan operation or the tilt operation is not caused by camera shake, so there is a case where it is not necessary to correct the optical system such as a lens. The pan / tilt determination circuit 28 is provided to realize the control as described above. Specifically, the pan / tilt determination circuit 28 determines that the pan operation or the tilt operation is being performed when it is detected that the angular velocity signal exceeds a predetermined value for a certain period.

  The gain adjustment circuit 30 changes the amplification factor of the angular velocity signal output from the HPF 26 according to the determination result of the pan / tilt determination circuit 28. For example, when the pan operation or the tilt operation is not being performed, the gain adjustment circuit 30 performs gain adjustment so as to maintain the intensity of the angular velocity signal output from the HPF 26. When the pan operation or the tilt operation is being performed, the gain adjustment circuit 30 performs gain adjustment so that the intensity of the angular velocity signal output from the HPF 26 is attenuated and the output becomes zero.

  The integration circuit 32 integrates the angular velocity signal output from the gain adjustment circuit 30 to generate an angle signal indicating the amount of movement of the imaging device. The integration circuit 32 is preferably configured to include a digital filter (not shown), and obtains an angle signal, that is, a movement amount of the imaging device by performing filter processing according to a filter coefficient set in a register (not shown).

  The centering processing circuit 34 subtracts a predetermined value from the angle signal output from the integration circuit 32 to generate a vibration component signal (SV-X2, SV-Y2) indicating the amount of movement of the imaging device. When camera shake correction processing is performed in the imaging apparatus, the lens position gradually moves away from the reference position while the correction processing is continuously performed, and may reach the vicinity of the limit point of the movable range of the lens. At this time, if the camera shake correction process is continued, the lens can move in one direction but cannot move in the other direction. The centering processing circuit 34 is provided to prevent this, and performs control so as not to approach the limit point of the movable range of the lens by subtracting a predetermined value from the angle signal.

  The centering processing circuit 34 preferably includes a digital filter (not shown), and performs a filter process according to a filter coefficient set in a register (not shown) to subtract a predetermined value from the angle signal. I do.

  When the changeover switch provided between the centering processing circuit 34 and the addition circuit 22 is in the open state, the X2-axis component signal (SV-X2) and Y2-axis component signal (SV) processed by the centering processing circuit 34 -Y2) is input to the built-in CPU 38. The changeover switch is controlled to be opened and closed by the built-in CPU 38. The built-in CPU 38 controls the opening / closing of the changeover switch according to external settings and the like.

  The built-in CPU 38 performs coordinate conversion processing of the X2-axis component signal (SV-X2) and the Y2-axis component signal (SV-Y2). The built-in memory of the built-in CPU 38 stores in advance conversion functions for performing coordinate conversion processing of the X2-axis component signal (SV-X2) and the Y2-axis component signal (SV-Y2). The built-in CPU 38 introduces the input X2-axis component signal (SV-X2) and Y2-axis component signal (SV-Y2) into the conversion function, thereby moving along the lens drive axes (X-axis and Y-axis). The converted signals (SV-X, SV-Y) converted into the coordinate system are calculated.

  Here, the conversion function is preset in the built-in CPU 38 for each image sensor in accordance with the angle θ2 of the X2 axis and the Y2 axis with respect to the X axis and the Y axis of the lens driven by the lens driving element 104. Specifically, the conversion function is expressed as Equation (1).

[Equation 1]
SV-X = SV-X2 · cos θ2−SV−Y2 · sin θ2
SV−Y = SV−X2 · sin θ2 + SV−Y2 · cos θ2
(1)

  When the changeover switch provided between the ADC 20 and the adder circuit 22 is in the open state, the X-axis component signal (Hole-X1) of the lens position detected by the position detection element 102, the Y-axis component of the position The signal (Hole-Y1) is input from the ADC 20 to the built-in CPU 38. The changeover switch is controlled to be opened and closed by the built-in CPU 38. The built-in CPU 38 controls the opening / closing of the changeover switch according to external settings and the like.

  The built-in CPU 38 performs coordinate conversion processing of the X1-axis component signal (Hole-X1) and the Y1-axis component signal (Hole-Y1) of the lens position. The built-in memory of the built-in CPU 38 stores in advance a conversion function for performing coordinate conversion processing of the X1-axis component signal (Hole-X1) and the Y1-axis component signal (Hole-Y1). The built-in CPU 38 introduces the input X1-axis component signal (Hole-X1) and Y1-axis component signal (Hole-Y1) into the conversion function, thereby moving along the lens drive axes (X-axis and Y-axis). The converted signals (Hole-X, Hole-Y) converted into the coordinate system are calculated.

  Here, the conversion function is preset in the built-in CPU 38 for each image sensor in accordance with the angle θ1 of the X1 axis and the Y1 axis with respect to the X axis and the Y axis of the lens driven by the lens driving element 104. Specifically, the conversion function is expressed as Equation (2).

[Equation 2]
Hole-X = Hole-X1 · cos θ1-Hole-Y1 · sin θ1
Hole-Y = Hole-X1 · sin θ1 + Hole-Y1 · cos θ1
(2)

  The adder circuit 22 adds the coordinate-converted position signal (Hole-X) and the coordinate-converted vibration component signal (SV-X), and is coordinate-converted with the coordinate-converted position signal (Hole-Y). The added vibration component signals (SV-Y) are added and output to the servo circuit 24.

  The servo circuit 24 generates a correction signal SR that controls the driving of the lens driving element 104 in accordance with the output signal from the adding circuit 22. The servo circuit 24 includes a register and a digital filter circuit, and performs a filter process using a filter coefficient stored in the register.

  The DAC 36 converts the digital correction signal SR into an analog signal. Based on the correction signal SR analogized by the DAC 36, the lens driving element 104 drives the lens of the imaging device in the X-axis direction and the Y-axis direction, respectively.

  The built-in CPU 38 not only performs coordinate conversion processing of the position signal (Hole-X1, Hole-Y1) and the vibration signal (Gyro-X2, Gyro-Y2), but also the coefficients of various filters included in the image stabilization control circuit 200. The control parameter of the servo circuit 24 is set. The built-in CPU 38 may perform other additional processing required by the image stabilization control circuit 200.

  The lens movement control for correcting the shake of the subject due to the camera shake using the image stabilization control circuit 200 shown in FIG. 1 will be described. In the following, a case will be described in which the changeover switch provided between the centering processing circuit 34 and the addition circuit 22 is in an open state, and the changeover switch provided between the ADC 20 and the addition circuit 22 is in an open state. .

  First, a case where there is no subject shake due to camera shake will be described. Since the position of the lens driven by the lens driving element 104 is coincident with the center of the image sensor provided in the image pickup apparatus, the built-in CPU 38 detects the position signal (Hole− after digital coordinate conversion indicating “0”). X, Hole-Y) is output. When the value of the position signal (Hole-X, Hole-Y) after coordinate conversion is “0”, the servo circuit 24 generates a correction signal SR for controlling the lens driving element 104 so as to maintain the current lens position. Output.

  If the lens position does not coincide with the center of the image sensor, the built-in CPU 38 outputs a position signal (Hole-X, Hole-Y) after coordinate conversion indicating a value different from “0”. The servo circuit 24 controls the lens driving element 104 so that the value of the position signal (Hole-X, Hole-Y) after coordinate conversion becomes “0” according to the value output from the built-in CPU 38. Is output. By repeating the above operation, the lens position is controlled so that the lens position and the center of the image sensor coincide.

  Next, a case where the subject shakes due to camera shake will be described. Since the position of the lens driven by the lens driving element 104 is coincident with the center of the image sensor provided in the image pickup apparatus, the built-in CPU 38 detects the digital corrected position signal (Hole-X) indicating “0”. , Hole-Y). On the other hand, since the image pickup apparatus moves due to camera shake, after passing through the integration circuit 32 and the centering processing circuit 34, the built-in CPU 38 receives the vibration component signals (SV-X, SV-Y) after coordinate conversion indicating the movement amount of the image pickup apparatus. Output.

  The servo circuit 24 generates a correction signal SR according to a signal obtained by adding the position signal (Hole-X) after coordinate conversion and the vibration component signal (SV-X) after coordinate conversion. At this time, since the vibration component signal (SV-X) that is not “0” is added even though the position signal (Hole-X) is “0”, the servo circuit 24 corrects the correction signal for moving the lens. SR is generated. The X-axis lens driving element 104 is controlled in accordance with the correction signal SR. Similarly, the correction signal SR is generated according to a signal obtained by adding the position signal (Hole-Y) after coordinate conversion and the vibration component signal (SV-Y) after coordinate conversion. At this time, although the position signal (Hole-Y) is “0”, the vibration component signal (SV-Y) which is not “0” is added, so the servo circuit 24 corrects the correction signal for moving the lens. SR is generated. The Y-axis lens driving element 104 is controlled according to the correction signal SR. Since the lens driving element 104 moves the lens based on the correction signal SR output from the servo circuit 24, the image pickup element provided in the image pickup apparatus can obtain a signal in which blurring of the subject due to camera shake is suppressed. By repeating such control, the image stabilization control circuit 200 realizes camera shake correction control.

  As described above, in the embodiment of the present invention, the image stabilization control circuit 200 is configured to include the HPF 26, the integration circuit 32, and the centering processing circuit 34, so that the circuit area is larger than the configuration in which the built-in CPU 38 performs the above processing. It becomes possible to reduce. As a result, the cost of the semiconductor chip on which the image stabilization control circuit 200 is mounted can be reduced.

  Further, the built-in CPU 38 performs coordinate conversion processing of the position signal (Hole-X1, Hole-Y1) from the position detection element 102 and the vibration signal (Gyro-X2, Gyro-Y2) from the vibration detection element 106, thereby obtaining a position. Anti-vibration control can be realized in an imaging device in which the detection element, the lens driving element, and the vibration detection element have different angles. In addition, the coordinate conversion process is supported by the firmware built in the built-in CPU 38, so that the coordinate conversion process can be easily performed even in a plurality of types of imaging devices having mutually different angles of the position detection element, the lens driving element, and the vibration detection element. Moreover, it can be performed at low cost.

  In the present embodiment, the position detection element 102 is disposed along the orthogonal coordinate X1 axis and the Y1 axis having an angle θ1 with respect to the X axis and the Y axis of the lens driven by the lens driving element 104. Although the vibration detection element 106 is arranged along the orthogonal coordinate X2 axis and the Y2 axis having an angle θ2 with respect to the X axis and the Y axis of the lens driven by the lens driving element 104, the position detection is performed. The element 102 or the vibration detection element 106 may be arranged along the same X axis and Y axis as the lens driving element 104.

  When the position detecting element 102 is disposed along the same X axis and Y axis as the lens driving element 104, the changeover switch provided between the ADC 20 and the adding circuit 22 is closed, and the position signal of the built-in CPU 38 is displayed. Coordinate conversion should not be performed. When the vibration detecting element 106 is disposed along the same X axis and Y axis as the lens driving element 104, the changeover switch provided between the centering processing circuit 34 and the adding circuit 22 is closed and built in. The coordinate conversion of the vibration signal by the CPU 38 may not be performed.

  When the position detecting element 102 is arranged along the same X axis and Y axis as the vibration detecting element 106 and only the lens driving element is arranged along different X ′ axis and Y ′ axis, the servo circuit 24 outputs. It is preferable to perform coordinate conversion of the correction signal SR. At this time, the switch provided between the ADC 20 and the adder circuit 22 is closed so that the coordinate conversion by the built-in CPU is not performed, and a switch (not shown) is provided between the servo circuit 24 and the DAC 36 so as to be opened. Coordinate conversion is performed by the CPU.

  In the embodiment of the present invention, the position detection element 102, the lens driving element 104, and the vibration detection element 106 are a hall element, a voice coil motor, and a gyro sensor, respectively, but the present application is not limited thereto. For example, the lens driving element 104 can be a piezo element. Further, the vibration detection element 106 can be configured to detect vibration of the imaging device based on an acceleration signal using a sensor that detects acceleration in a linear direction.

  In the embodiment of the present invention, the lens shift method is performed in which the lens is driven to perform the camera shake correction process. However, the present invention is not limited to this. For example, the present invention can also be applied to a CCD shift system that shifts an image pickup device such as a CCD device in accordance with the shake of the image pickup apparatus. At this time, the position detection element 102 can detect the position of the imaging element, and the lens driving element 104 can be an element that drives the imaging element.

It is a figure which shows the structure of the image stabilization control circuit in embodiment of this invention. It is a figure which shows the relative arrangement | positioning of the vibration detection element and position detection element in embodiment of this invention. It is a figure which shows the structure of the conventional anti-vibration control circuit.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Servo circuit, 12 Lens driver, 20 Analog / digital conversion circuit, 22 Adder circuit, 24 Servo circuit, 26 High pass filter, 28 Pan / tilt determination circuit, 30 Gain adjustment circuit, 32 Integration circuit, 34 Centering processing circuit, 36 Digital / Analog conversion circuit, 38 Built-in CPU, 100, 200 Anti-vibration control circuit, 102 Position detection element, 104 Lens drive element, 106 Vibration detection element

Claims (4)

An anti-vibration control circuit that drives the optical components of the imaging device according to vibrations and reduces the influence on the imaging due to vibrations,
A vibration control equalizer that generates a vibration signal for determining a driving amount of the optical component based on an output signal of a vibration detection element that detects vibration of the imaging device in each of at least two axial directions;
A position signal for determining a driving amount of at least two axial directions of the optical component based on an output signal of a position detecting element that detects the position of the optical component in each of at least two axial directions and the vibration signal. A position control equalizer to be calculated;
A built-in CPU that controls the vibration control equalizer and the position control equalizer;
With
The anti-vibration control circuit, wherein the built-in CPU performs coordinate conversion processing of at least one of the vibration signal, the output signal of the position detection element, and the position signal. The image stabilization control circuit according to claim 1,
The built-in CPU coordinate-transforms the vibration signal generated by the vibration control equalizer into a coordinate axis along the drive axis of the optical component,
The image stabilization control circuit, wherein the position control equalizer calculates the position signal based on an output signal of the position detection element and a vibration signal coordinate-converted by the built-in CPU. The image stabilization control circuit according to claim 1 or 2,
The built-in CPU performs a coordinate conversion process of the output signal of the position detection element,
The image stabilization control circuit, wherein the position control equalizer calculates the position signal based on an output signal of the position detection element coordinate-converted by the built-in CPU. The image stabilization control circuit according to claim 1,
The anti-vibration control circuit, wherein the built-in CPU performs coordinate conversion of a position signal generated by the position control equalizer into a coordinate axis along a drive axis of the optical component.

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