JP2005173467A - Blur correcting device, interchangeable lens, camera body and camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blur correction device, an interchangeable lens, a camera body and a camera which can be used without feeling of incongruity without generating an adverse effect to an observed image and a photographed moving image due to detection of vibration of popup by a vibration detection part is not generated when a supplemental illumination light emitting part is popped up. <P>SOLUTION: During predetermined time t1 (S40 to S80) from the time when the supplemental illumination light emission part 5 is popped up, control (S50) is performed so as to hold a position of a blurring correction lens 1 at the time when the supplemental illumination light emitting part 5 is popped up without referring to a vibration detection result obtained from the vibration detection part 3 during the time. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a shake correction device, an interchangeable lens, a camera body, and a camera that correct image blur caused by camera shake or the like of a video to be shot.

An image blur correction device or the like that corrects image blur has a vibration detection unit that detects vibration due to camera shake, and drives an image blur correction optical system based on the detection result of the vibration detection unit. The image capturing unit and the optical axis of the image capturing optical system are relatively moved to reduce image blur.
By the way, the camera has a built-in auxiliary illumination light emitting unit so that when it is necessary to emit auxiliary illumination light, the auxiliary illumination light emitting unit jumps from the storage position to the use position automatically or by the photographer's operation. In many cases, light emission preparation movement (hereinafter referred to as pop-up) or storage movement from the use position to the storage position (hereinafter referred to as pop-down) is performed when unnecessary. In addition, since it becomes complicated if pop-up and pop-down are written together, in the following description, only the pop-up will be described for simplicity, but the same applies to the pop-down.

In Patent Document 1, a shake correction optical system is placed at a fixed position so that the shake correction optical system does not move due to vibration caused by pop-up of the auxiliary illumination light emitting unit in a shake correction non-permitted state, that is, in a state where no shake correction operation is performed. A technique for holding and controlling is shown.
Patent Document 2 proposes a method of temporarily displaying the same image data on the liquid crystal monitor or erasing the display when the auxiliary illumination light emitting unit pops up.
These Patent Documents 1 and 2 do not mention the case where the shake correction optical system is subjected to position control (including so-called centering operation and shake correction operation).
In Patent Document 1 and Patent Document 2, a device that does not have a so-called lock device that mechanically fixes the shake correction optical system, and the shake correction optical system is not subjected to position control and is in a free state. In some cases, it is assumed that the shake correction optical system moves due to an impact caused by the pop-up of the auxiliary illumination light emitting unit.

However, since the vibration caused by the pop-up of the auxiliary illumination light emitting unit is not so large that the entire camera shakes, the possibility of image blurring due to the pop-up of the auxiliary illumination light emitting unit is very low.
Further, in a camera having a shake correction device, if the auxiliary illumination light emitting unit pops up during the shake correction control, the vibration detection unit detects the vibration. Then, when calculating the blur correction driving amount of the blur correction optical system, the calculation for correcting the vibration component due to the pop-up of the auxiliary illumination light emitting unit is performed, and as a result, the blur correction optical system pops up. It will behave like correcting the vibration component.
In this case, in the case of taking a still image, since the shooting is performed after the pop-up of the auxiliary illumination light emitting unit is completed, it is unlikely that a problem particularly occurs in the obtained image itself, but a finder, a display device, etc. When observing the subject, the observation image is shaken for a moment when the auxiliary illumination light emitting unit pops up, which is unnatural and uncomfortable and difficult to see.

  In addition, the auxiliary illumination light emitting unit pops up when taking a still image while shooting a movie, or the auxiliary illumination light emitting unit emits light for a long time while shooting a movie. In addition to the above problem, when the auxiliary illumination light emitter pops up while shooting a movie, the observation image of the subject being observed by the viewfinder or display device is shaken and observed for a moment. There is also a problem that the observed image is shaken for a moment when the auxiliary illumination light emitting unit pops up.

The above problems occur only when position control of the shake correction optical system or the like is performed regardless of the presence or absence of a lock mechanism such as the shake correction optical system. The method described in (1) could not be solved.
JP 2003-172961 A JP 2003-307762 A

  An object of the present invention is to provide a blur that can be used without a sense of incongruity without causing an adverse effect on an observed image and a captured moving image due to the vibration detection unit detecting the vibration when the auxiliary illumination light emitting unit pops up. A correction device, an interchangeable lens, a camera body, and a camera are provided.

The present invention solves the above problems by the following means. In addition, in order to make an understanding easy, although the code | symbol corresponding to the Example of this invention is attached | subjected and demonstrated, it is not limited to this.
The invention according to claim 1 is a shake correction device that performs a shake correction operation for correcting image blur by relatively moving the position of the optical axis of the shooting optical system and the shooting section (8), and the auxiliary illumination light The light emitting part (5) is movable between a storage position and a use position, and the auxiliary illumination light emitting part is moved from the storage position to the use position, and / or from the use position to the storage position. During the predetermined time (t1) from the start time of the storage movement, the photographing optical system is used without using the vibration detection signal obtained from the vibration detection unit (3) during the period or by processing the vibration detection signal. And a relative position between the optical axis and the photographing unit is controlled.

  According to a second aspect of the present invention, there is provided the shake correcting apparatus according to the first aspect, wherein the auxiliary illumination light emitting unit (5) is in the auxiliary time during a predetermined time (t1) from the start of light emission preparation movement and / or storage movement. The blur correction device characterized in that the illumination light emitting unit maintains a relative positional relationship between the optical axis of the photographing optical system and the photographing unit (8) at the start of light emission preparation movement and / or storage movement. .

  According to a third aspect of the present invention, there is provided the shake correction apparatus according to the first aspect, wherein the auxiliary illumination light emitting unit (5) is in the auxiliary time during a predetermined time (t1) from the start of the light emission preparation movement and / or storage movement. The illumination light emitting unit performs a shake correction operation based on a vibration detection signal obtained from the vibration detection unit (3) before the start time of light emission preparation movement and / or storage movement (t0). This is a shake correction device.

  According to a fourth aspect of the present invention, in the shake correction apparatus according to the first aspect, the vibration is emitted during a predetermined time (t1) from when the auxiliary illumination light emitting unit (5) starts the light emission preparation movement and / or the storage movement. Based on the vibration detection signal obtained from the detection unit (3), the auxiliary illumination light emitting unit performs a shake correction operation based on a signal obtained by performing processing for removing or reducing signal components caused by the light emission preparation movement and / or the storage movement. This is a shake correction apparatus characterized by the above.

  According to a fifth aspect of the present invention, there is provided a blur correction device for performing a blur correction operation for correcting image blur by relatively moving the position of the optical axis of the photographing optical system and the photographing section (8). The light emitting part (5) is movable between a storage position and a use position, and the auxiliary illumination light emitting part is moved from the storage position to the use position, and / or from the use position to the storage position. During a predetermined time (t1) from the start time of the moving storage movement, the auxiliary illumination light emitting unit converts the image data used for moving image recording into image data obtained before the start time of the light emission preparation movement and / or storage movement. The shake correction apparatus is characterized by being fixed.

  According to a sixth aspect of the present invention, there is provided a blur correction apparatus for performing a blur correction operation for correcting image blur by relatively moving the position of the optical axis of the photographing optical system and the photographing section (8). In a shake correction permission state that permits the auxiliary illumination light emitting unit (5), the auxiliary illumination light emitting unit (5) is movable between the storage position and the use position, and the light emission preparation movement is performed to move the auxiliary illumination light emission unit from the storage position to the use position And / or during a predetermined time (t1) from the start of the storage movement that moves from the use position to the storage position, the auxiliary illumination light emitting unit is configured to take the photographing optical at the start of light emission preparation movement and / or storage movement. A shake correction apparatus characterized by maintaining a relative positional relationship between an optical axis of a system and the photographing unit.

  According to a seventh aspect of the present invention, there is provided a blur correction device for performing a blur correction operation for correcting image blur by relatively moving the position of the optical axis of the photographing optical system and the photographing section (8). In the shake correction permission state that permits the auxiliary illumination light emitting section (5), the auxiliary illumination light emitting section (5) is movable between the storage position and the use position, and the light emission preparation movement is performed to move the auxiliary illumination light emission section from the storage position to the use position. And / or during a predetermined time (t1) from the start of the storage movement that moves from the use position to the storage position, the auxiliary illumination light emitting unit detects vibration before the start of the light emission preparation movement and / or storage movement. The shake correction device is characterized by performing a shake correction operation based on a vibration detection signal obtained from a section.

  The invention according to claim 8 is a shake correction device that performs a shake correction operation for correcting image blur by relatively moving the position of the optical axis of the shooting optical system and the shooting section (8). In a shake correction permission state that permits the auxiliary illumination light emitting unit (5), the auxiliary illumination light emitting unit (5) is movable between the storage position and the use position, and the light emission preparation movement is performed to move the auxiliary illumination light emission unit from the storage position to the use position And / or during a predetermined time (t1) from the start point of the storage movement that moves from the use position to the storage position, the auxiliary illumination light emitting unit moves from the vibration detection signal obtained from the vibration detection unit to prepare for light emission. A blur correction device that performs a blur correction operation based on a signal that has been subjected to processing for removing and / or reducing signal components resulting from storage movement.

  The invention according to claim 9 is a shake correction apparatus that performs a shake correction operation for correcting image blur by relatively moving the position of the optical axis of the shooting optical system and the shooting section (8). In the shake correction permission state that permits the auxiliary illumination light emitting section (5), the auxiliary illumination light emitting section (5) is movable between the storage position and the use position, and the light emission preparation movement is performed to move the auxiliary illumination light emission section from the storage position to the use position. And / or during a predetermined time (t1) from the start of the storage movement that moves from the use position to the storage position, the auxiliary illumination light emitting section moves and / or stores the image data used for moving image recording. The blur correction device is characterized in that it is fixed to image data obtained before the start of movement.

  A tenth aspect of the present invention is the shake correction apparatus according to any one of the first to ninth aspects, wherein the auxiliary illumination light emitting unit (5) is configured to start the light emission preparation movement and / or the storage movement. Is the time when it is determined that the auxiliary illumination light by the auxiliary illumination light emission is necessary based on the photometric output from the photometry unit (10), or the auxiliary illumination light emission unit is moved to prepare for emission and / or moved. The blur correction device is characterized in that the auxiliary illumination light emitting unit movement signal is output.

  An eleventh aspect of the present invention is the blur correction device according to any one of the first to ninth aspects, wherein the auxiliary illumination light emitting unit (5) is configured to start the light emission preparation movement and / or the storage movement. Is a time determined based on the detection result of the auxiliary illumination light emitting unit movement detecting unit (12) for detecting the light emission preparation movement and / or the storage movement of the auxiliary illumination light emitting unit. It is a correction device.

  A twelfth aspect of the invention is an interchangeable lens including the blur correction device according to any one of the first to eleventh aspects, wherein the photographing optical system, the vibration detection unit (3), and the A blur correction optical system (1) that forms at least a part of the photographing optical system and moves in a plane substantially orthogonal to the optical axis to correct image blur, and a blur correction drive unit that drives the blur correction optical system (2).

  A thirteenth aspect of the present invention is a camera body including the blur correction device according to any one of the first to eleventh aspects, wherein the photographing unit (8) and the auxiliary illumination light emitting unit (5). ) And a light emission preparation movement drive unit (6) that moves and / or moves the auxiliary illumination light emission unit to prepare for light emission, and is a camera body in which an interchangeable lens including the photographing optical system is detachable.

  The invention of claim 14 is the camera body according to claim 13, wherein the photographing unit (8) is movably attached, and has a blur correction driving unit for driving the photographing unit. It is a camera body.

  A fifteenth aspect of the invention is a camera including the shake correction apparatus according to any one of the first to eleventh aspects, wherein the photographing optical system, the vibration detecting unit (3), and the photographing are performed. At least one of the imaging optical system, an auxiliary illumination light emitting unit (5), a light emission preparation moving drive unit (6) for moving and / or storing the auxiliary illumination light emitting unit. And a camera shake correction drive unit (2) for driving the imaging unit.

According to the present invention, the following effects can be obtained.
(1) During a predetermined time from the start of the light emission preparation movement for moving the auxiliary illumination light emitting section from the storage position to the use position and / or the storage movement for moving from the use position to the storage position, the vibration detection section during that time. Without using the vibration detection signal obtained from or processing the vibration detection signal to control the relative position between the optical axis of the imaging optical system and the imaging unit, / Or prevents the relative position between the optical axis of the imaging optical system and the imaging unit, which is generated by the vibration detection unit detecting vibration caused by the storage movement, from unnaturally moving, and provides an observation image and a video image Can be prevented from shaking unnaturally.

(2) The optical axis of the imaging optical system when the auxiliary illumination light emitting unit starts the light emission preparation movement and / or storage movement for a predetermined time from the start time of the light emission preparation movement and / or storage movement. Since the relative positional relationship between the image capturing unit and the image capturing unit is maintained, the observed image and the captured moving image can be stopped, and the unnaturally large shaking can be eliminated.

(3) The auxiliary illumination light emitting unit is obtained from the vibration detection unit before the start of the light emission preparation movement and / or storage movement for a predetermined time from the start time of the light emission preparation movement and / or storage movement. Since the shake correction operation is performed based on the vibration detection signal that has been received, even if the vibration detection unit detects vibration caused by the light emission preparation movement and / or the storage movement of the auxiliary illumination light emission part, unnatural behavior is detected. The blur correction operation can be performed without performing the above.

(4) During a predetermined time from the start of the light emission preparation movement and / or storage movement, the auxiliary illumination light light emission section moves the light emission preparation movement and / or storage movement from the vibration detection signal obtained from the vibration detection section. Since the shake correction operation is performed based on the signal that has been processed to remove and / or reduce the signal component caused by the vibration, the vibration caused by the light emission preparation movement and / or the storage movement of the auxiliary illumination light emitting section is detected as vibration. Even if the image is detected, an accurate blur correction operation can be performed.

(5) The auxiliary illumination light emitting unit is used for moving image recording for a predetermined time from the start of the light emission preparation movement for moving from the storage position to the use position and / or the storage movement for moving from the use position to the storage position. The image data is fixed to the image data obtained before the start of the light emission preparation movement and / or storage movement by the auxiliary illumination light emission section, resulting from the light emission preparation movement and / or storage movement of the auxiliary illumination light emission section. Even if the vibration detecting unit detects the vibration to be performed, a natural moving image can be taken without suddenly shaking the recorded moving image.

  The purpose of making it possible to use without feeling any sense of incongruity without causing an adverse effect on the observed image and the captured video due to the vibration detecting unit detecting the vibration when popping up the auxiliary illumination light emitting unit, For a predetermined time after the auxiliary illumination light emitting unit pops up, it is realized without adding new parts or the like by performing control different from normal.

FIG. 1 is a cross-sectional view of the camera according to the first embodiment.
FIG. 2 is a block diagram showing portions related to the present invention in the camera of the first embodiment.
The camera in this embodiment includes a shake correction lens 1, a shake correction lens driving unit 2, a vibration detection unit 3, a CPU 4, an auxiliary illumination light emission unit 5, an auxiliary illumination light emission unit moving unit 6, and an auxiliary illumination light emission unit position detection unit. 7, image pickup device 8, monitor 9, photometry unit 10, manual pop-up button 11, auxiliary illumination light emitting unit movement detection unit 12, image recording unit 13, and the like. This is a non-interchangeable lens camera that is integrally attached.
The blur correction lens 1 forms a part of an imaging optical system (not shown), and is moved by being driven by the blur correction lens driving unit 2 in a direction substantially orthogonal to the optical axis, thereby deflecting the optical axis and imaging. This lens corrects image blur by moving the relative position between the optical axis of the imaging optical system (not shown) and the imaging unit on the element 8.
The blur correction lens driving unit 2 is a blur correction driving unit that is formed by a driver circuit (not shown) and a VCM and drives the blur correction lens 1 in accordance with an instruction from the CPU 4.

The vibration detection unit 3 is a part that detects camera vibration due to camera shake or the like, and generally uses what is called a gyro sensor. The gyro sensor is mounted in two directions orthogonal to the optical axis, and acceleration components in two directions are provided. Is output.
The CPU 4 is a microprocessor, and has a function of a control unit that controls the entire camera and a function of a memory that stores information.
The auxiliary illumination light emitting unit 5 is an auxiliary illumination light emitting unit that emits a flash as auxiliary illumination light at the time of photographing, and is used from the storage position automatically or when operated by the photographer when it is necessary to emit auxiliary illumination light. Move (pop up) so that it jumps to the position.

  The auxiliary illumination light emission unit moving means 6 is a light emission preparation movement drive unit that pops up the auxiliary illumination light emission unit 5. The auxiliary illumination light emitting unit moving means 6 of this embodiment has a spring, solenoid, locking means, etc. (not shown), and the auxiliary illumination light emitting unit 5 is locked at the storage position by the locking means. Thus, an urging force is applied in the pop-up direction, the locking is released by the solenoid, and the auxiliary illumination light emitting unit 5 is popped up by the urging force of the spring. Therefore, in the present embodiment, the above-described pop-up operation can be performed, but movement of the storage position from the use position is manually performed by the photographer.

The auxiliary illumination light emitting unit position detecting unit 7 is a switch that detects whether the auxiliary illumination light emitting unit 5 is in the pop-up use position or the storage position. When in position, it is OFF.
The imaging element 8 is an imaging unit including a photoelectric conversion element that performs photoelectric conversion on an object image obtained by the imaging optical system.
The monitor 9 is a display device that displays an image obtained through the photographing optical system.
The photometry unit 10 is a part that measures the luminance of the object scene and transmits it to the CPU 4. The CPU 4 determines whether or not the auxiliary illumination light emitting unit 5 needs to emit light based on the measurement result of the photometry unit 10.

The manual pop-up button 11 is an operation member that can arbitrarily pop up the auxiliary illumination light emitting unit 5 by a photographer's operation. By operating the manual pop-up button 11 when the auxiliary illumination light emitting unit 5 is in the storage position, the auxiliary illumination light emitting unit 5 is unlocked by the engaging means of the auxiliary illumination light emitting unit moving means 6. Will pop up.
The auxiliary illumination light emitting unit movement detection unit 12 is a switch whose state changes in the middle of the auxiliary illumination light emitting unit 5 popping up, and can detect that the auxiliary illumination light emitting unit 5 is in the process of popping up. It is an illumination light emission part movement detection part. The auxiliary illumination light emitting unit movement detection unit 12 uses, for example, a mechanical switch such as a leaf switch, or an optical switch such as a photo reflector or a photo interrupter, so that the auxiliary illumination light emitting unit is used. When passing a specific position in the process of popping up 5, it is possible to output a signal that immediately rises and returns immediately.

By using the auxiliary illumination light emitting unit movement detecting unit 12 and the auxiliary illumination light emitting unit position detecting unit 7 in combination, the behavior of the auxiliary illumination light emitting unit 5 can be accurately grasped. The detection of the behavior of the auxiliary illumination light emitting unit 5 by combining the auxiliary illumination light emitting unit movement detecting unit 12 and the auxiliary illumination light emitting unit position detecting unit 7 is also effective at the time of manual pop-up using the manual pop-up button 11. To work. Therefore, in the present embodiment, at the time of automatic pop-up based on the determination of the CPU 4, the auxiliary illumination light emitting unit is generated based on the pop-up signal generated by the CPU 4 and the signals from the auxiliary illumination light emitting unit movement detecting unit 12 and the auxiliary illumination light emitting unit position detecting unit 7. 5 is determined, and at the time of manual pop-up using the manual pop-up button 11, the auxiliary illumination light emission unit 5 of the auxiliary illumination light emission unit 5 is detected by signals from the auxiliary illumination light emission unit movement detection unit 12 and the auxiliary illumination light emission unit position detection unit 7. Determine the state.
The image recording unit 13 is a part for recording image data photographed by the CCD 8.

FIG. 3 is a flowchart illustrating the flow of the camera shake correction operation according to the first embodiment.
In many cases, a camera capable of performing the shake correction operation can select a state in which the shake correction operation is performed (permitted) and a state in which the shake correction operation is not performed (not permitted). The flow shown in FIG. 6 shows the operation in the shake correction permission state in which the shake correction operation is permitted.
The operation starts when the half-press switch is turned on by a release switch (not shown).
In step (hereinafter referred to as S) 10, photometry, distance measurement, and blur correction control are started.
In S20, it is determined whether or not the photometric value by the photometric unit 10 is smaller than a predetermined value. When the photometric value is smaller than the predetermined value, the process proceeds to S30. When the photometric value is greater than the predetermined value, the process jumps to S100.

In S30, the state of the auxiliary illumination light emission unit 5 is determined based on signals from the auxiliary illumination light emission unit movement detection unit 12 and the auxiliary illumination light emission unit position detection unit 7, and the auxiliary illumination light emission unit 5 has not popped up. It is determined whether it is in the storage position. If it is in the storage position, the process proceeds to S40, and if it is in the use position, the process jumps to S100.
In S <b> 40, it is determined by the determination in S <b> 20 and S <b> 30 that the photometric value <predetermined value and the auxiliary illumination light emitting unit 5 has not popped up, and it is necessary to pop up to make the auxiliary illumination light emitting unit 5 emit light. Therefore, the CPU 4 outputs a pop-up signal (auxiliary illumination light emission part movement signal) for popping up the auxiliary illumination light emission part 5 to the auxiliary illumination light emission part moving means 6.
In S50, the blur correction control is temporarily stopped.
Here, the reason why the blur correction control is temporarily stopped in S50 will be described.

FIG. 4 is a diagram illustrating an example of a detection value by the vibration detection unit 3 when the auxiliary illumination light emitting unit 5 is not in the pop-up operation.
In FIG. 4, the horizontal axis indicates time, and the vertical axis indicates the vibration detection value. Since the auxiliary illumination light emitting unit 5 is not in a pop-up operation, vibration due to hand shake when no impact is generated is mainly detected. Will be.
FIG. 5 is a diagram illustrating an example of a detection value by the vibration detection unit 3 when the auxiliary illumination light emitting unit 5 pops up. In FIG. 5, as in FIG. 4, the horizontal axis indicates time, and the vertical axis indicates the vibration detection value.
When the auxiliary illumination light emitting unit 5 pops up, vibration due to the pop-up is detected for a time t1, as shown in FIG. The time t1 is usually as short as several milliseconds to several tens of milliseconds, and the amount of camera displacement due to this impact is very small. However, since the acceleration is large, the detected vibration waveform becomes large. If the shake correction operation is performed according to this vibration waveform, the image output to the monitor 9 or the like will be greatly shaken. In addition, during the shooting of a moving image, a greatly shaken image is recorded as a recorded image.

Therefore, in this embodiment, the blur correction control is temporarily stopped in S50. Specifically, during the time t1 in FIG. 5, the position of the shake correction lens 1 at the time when the auxiliary illumination light emitting unit 5 pops up without referring to the vibration detection result obtained from the vibration detecting unit 3 during that time t1. Control to hold.
FIG. 6 shows a control waveform used by the CPU 4 for position control of the shake correction lens 1 when performing control to hold the shake correction lens 1 at a fixed position when the auxiliary illumination light emitting unit 5 pops up in this embodiment. FIG.
In FIG. 6, the portions other than the time t1 are the same as the vibration detection results obtained from the vibration detection unit 3 shown in FIG. 5, but the time t1 portion indicates the control value at the time when the auxiliary illumination light emitting unit 5 pops up. I try to keep it.
Note that the length of the time t1 may be a predetermined value determined based on a value measured in advance through experiments or the like.

Returning to FIG. 3, in S60, the timer starts counting.
In S70, the auxiliary illumination light emitting unit moving unit 6 starts the pop-up operation in response to the pop-up signal output in S40.
In S80, it is determined whether or not a predetermined time t1 has elapsed since the start of the timer count in S60. The fact that the predetermined time t1 has passed means that it can be assumed that the time for the vibration due to the pop-up of the auxiliary illumination light emitting unit 5 to subside has elapsed, so that the process proceeds to S90, and when the predetermined time t1 has not elapsed, the predetermined time t1 Repeat this step until.
In S90, the blur correction control is resumed.
In S100, it is determined whether or not the full press switch is ON. If the full press switch is ON, the process proceeds to S110, and if the full press switch is OFF, the process returns to S10.
In S110, a photographing operation is performed and the operation is terminated.

According to this embodiment, the position of the shake correction lens 1 is held at a fixed position for a predetermined time t1 from when the auxiliary illumination light emitting unit 5 pops up, that is, until the vibration caused by the pop-up subsides. Thus, a natural image can be obtained without causing an unnatural large fluctuation in the image displayed on the monitor 9.
Further, if the operation of this embodiment is performed during moving image shooting, it is possible to prevent unnatural large shaking from being recorded.

FIG. 7 is a flowchart illustrating the flow of the camera shake correction operation according to the second embodiment.
Since the second embodiment is the same as the first embodiment except that the operation shown in FIG. 7 is different, parts having the same functions as those of the first embodiment described above are denoted by the same reference numerals, and redundant description is given. Is omitted as appropriate.
The operation starts when the half-press switch is turned on by a release switch (not shown).
In S210, photometry, distance measurement, and blur correction control are started.
In S220, it is determined whether or not the photometric value obtained by the photometric unit 10 is smaller than a predetermined value. When the photometric value is smaller than the predetermined value, the process proceeds to S230, and when the photometric value is greater than the predetermined value, the process jumps to S300.

In S230, it is determined whether or not the auxiliary illumination light emitting unit 5 has popped up, that is, whether or not it is in the storage position. If it is in the storage position, the process proceeds to S240, and if it is in the use position, the process jumps to S300.
In S240, a pop-up signal (auxiliary illumination light emitting unit movement signal) for popping up the auxiliary illumination light emitting unit 5 is output.
In S250, the timer starts counting.
In S260, blur correction control based on the vibration detection result detected by the vibration detection unit 3 during the time t0 before the time when the auxiliary illumination light emitting unit 5 starts pop-up is started.

FIG. 8 shows that the CPU 4 performs the blur correction control based on the vibration detection result detected by the vibration detection unit 3 during the previous time t0 when the auxiliary illumination light emitting unit 5 pops up in this embodiment. It is a figure which shows the control waveform used for position control of the blurring correction lens.
In FIG. 8, t0 = t1, and the same blur correction control as that immediately before that is not affected by the vibration caused by the pop-up of the auxiliary illumination light emitting unit 5 is performed for the time t1. . The camera shake at time t1 does not always coincide with the camera shake at time t0. However, as described above, time t1 is usually as short as several milliseconds to several tens of milliseconds, and within such a short time. The vibration state is unlikely to change greatly, and even if the blur correction control is slightly deviated from the actual camera shake, it is based on the vibration detection signal including the vibration component due to the auxiliary illumination light emitting unit 5 popping up. Thus, an image that is more natural than the control is displayed on the monitor 9.

Returning to FIG. 7, in S <b> 270, the auxiliary illumination light emitting unit moving unit 6 starts the pop-up operation in response to the pop-up signal output in S <b> 240.
In S280, it is determined whether or not a predetermined time t1 has elapsed since the start of the timer count in S250. The fact that the predetermined time t1 has passed, that is, it can be assumed that the time for the vibration due to the pop-up of the auxiliary illumination light emitting unit 5 to subside has elapsed, so the process proceeds to S290, and when the predetermined time t1 has not elapsed, the predetermined time t1 Repeat this step until.
In S290, normal blur correction control, that is, control similar to that before the auxiliary illumination light emitting unit 5 pops up is resumed.
In S300, it is determined whether or not the full press switch is ON. If the full press switch is ON, the process proceeds to S310, and if the full press switch is OFF, the process returns to S210.
In S310, a photographing operation is performed and the operation is terminated.

According to the present embodiment, the auxiliary illumination light emitting unit performs the shake correction control based on the vibration detection result detected by the vibration detecting unit 3 during the time t0 before the time when the auxiliary illumination light emitting unit 5 starts pop-up. Since this is performed for the time t1 from the time point 5 starts pop-up, a natural image can be obtained without causing an unnatural large shake in the image displayed on the monitor 9.
Further, if the operation of this embodiment is performed during moving image shooting, it is possible to prevent unnatural large shaking from being recorded.

FIG. 9 is a flowchart illustrating the flow of the camera shake correction operation according to the third embodiment.
The third embodiment is an example in which the auxiliary illumination light emitting unit 5 pops up in the camera of the first embodiment when still image shooting is performed simultaneously with shooting of a moving image, and the operation shown in FIG. 9 is different. Others are the same as those in the first embodiment, and thus the same functions as those in the first embodiment described above are denoted by the same reference numerals, and repeated description is omitted as appropriate.
When the half-press switch is turned on by a release switch (not shown), the still image shooting operation is started. Note that the release switch in this embodiment is a release switch for still image shooting. Before starting the flow of FIG. 9, moving image shooting has already started, and moving image shooting with the shake correction lens 1 driven is performed. It is assumed that image stabilization control is also performed.
In S410, photometry and distance measurement necessary for still image shooting are started.
In S420, it is determined whether or not the photometric value by the photometric unit 10 is smaller than a predetermined value. When the photometric value is smaller than the predetermined value, the process proceeds to S430, and when the photometric value is equal to or greater than the predetermined value, the process jumps to S500.

In S430, it is determined whether or not the auxiliary illumination light emitting unit 5 has popped up, that is, whether or not it is in the storage position. If it is in the storage position, the process proceeds to S440. If it is in the use position, the process jumps to S500.
In S440, a pop-up signal (auxiliary illumination light emission unit movement signal) for popping up the auxiliary illumination light emission unit 5 is output.
In S450, the recording image data of the moving image to be recorded is not updated, and recording is performed while maintaining the same data. That is, from this step, the still image data is temporarily used as moving image recording image data (until S490).
Further, if the recording image data is not updated in this step, the image displayed on the monitor 9 also becomes the same data, that is, a still image.

When the auxiliary illumination light emitting unit 5 pops up to emit auxiliary illumination light at the time of still image shooting, a moving image is already being shot while performing blur correction control. Therefore, the vibration detection unit 3 detects the vibration due to the pop-up of the auxiliary illumination light emitting unit 5 during that time, and a vibration detection signal as shown at time t1 in FIG. 5 is obtained. The lens 1 performs a shake correction control operation. In the moving image recording image data obtained at that time, an unnatural large fluctuation exists. Similarly, the display on the monitor 9 has a large unnatural shaking.
Therefore, in this embodiment, during this time t1, a still image for one frame of the moving image at the time when the auxiliary illumination light emitting unit 5 pops up is recorded as moving image recording image data. It prevents shaking from being recorded. At this time, the image data being recorded is displayed on the monitor 9, and a still image is displayed on the monitor 9 for the time t, thereby preventing an unnatural large shake from being displayed. it can.

In S460, the timer starts counting.
In S470, in response to the pop-up signal output in S440, the auxiliary illumination light emitting unit moving unit 6 starts a pop-up operation.
In S480, it is determined whether or not a predetermined time t1 has elapsed since the start of the timer count in S460. If the predetermined time t1 has passed, that is, since it can be assumed that the time for the vibration due to the pop-up of the auxiliary illumination light emitting unit 5 to subside has elapsed, the process proceeds to S490, and when the predetermined time t1 has not elapsed, the predetermined time t1 is reached. Repeat this step until.
In S490, the updating of the image data for moving image recording is resumed. That is, the moving image recorded after this step is recorded as a moving image on which normal blur correction control is performed.
In S500, it is determined whether or not the full-press switch is ON. If the full-press switch is ON, the process proceeds to S510. If the full-press switch is OFF, the process returns to S410.
In S510, a still image shooting operation is performed. Note that this still image is shot in parallel with the moving image shooting that was continued before that. Thereafter, the still image shooting operation is terminated.

According to the present embodiment, the recorded image data of the moving image is set to the same still image data for a predetermined time t1 from the time when the auxiliary illumination light emitting unit 5 pops up during moving image shooting while performing the shake correction operation. Therefore, it is possible to always shoot a natural video without recording an unnatural large shake.
Also, the display of the monitor 9 can be prevented from displaying an unnatural large shake.
The effect obtained by the present embodiment can also be obtained by executing the invention shown in the first embodiment at the time of moving image shooting. However, in this embodiment, it is not necessary to change the control content of the shake correction lens 1. It can be implemented more easily.
(Modification)

The present invention is not limited to the embodiments described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention.
(1) In each embodiment, when the auxiliary illumination light emitting unit pops up, an example of performing an operation to avoid an adverse effect caused by the impact has been shown. The same operation may be performed when moving (popping down) from the position to the storage position.

(2) In each embodiment, the case where the auxiliary illumination light emitting unit pops up when shooting a still image has been described as an example. However, the present invention is not limited to this. For example, auxiliary illumination light effective at the time of shooting a moving image is used. The present invention may be applied when an auxiliary illumination light emitting device such as a so-called video light that emits light pops up or pops down.

(3) In each embodiment, the example in which the pop-up time point of the auxiliary illumination light emitting unit 5 is set when the pop-up signal is output is shown. However, the present invention is not limited to this, for example, the CPU 4 uses the photometric value of the photometric unit 10. It may be a time when it is determined that the auxiliary illumination light emitting unit 5 needs to emit light, or may be a time when it is determined that the auxiliary illumination light emitting unit 5 needs to be popped up. Further, it may be the time when the manual pop-up button 11 is operated by the photographer's manual operation regardless of the determination on the camera side, or the auxiliary illumination light emitting unit position detecting unit 7 and the auxiliary illumination light emitting unit movement detecting unit 12. The pop-up time of the auxiliary illumination light emitting unit 5 may be determined based on the detection result.

(4) In each embodiment, the camera that drives the blur correction lens 1 to relatively move the position of the optical axis of the photographing optical system and the CCD 8 has been described as an example. A camera that performs a shake correction operation by moving the position of the optical axis of the imaging optical system and the imaging unit by driving the imaging unit side such as the CCD 8 without driving the imaging optical system side. Also good.

(5) In each of the embodiments, the present invention has been described by taking a non-lens interchangeable camera as an example. However, the present invention is not limited thereto. For example, the present invention is applied to an interchangeable lens or a single-lens reflex camera body. Also good.

(6) In Example 1, during the predetermined time t1, an example is shown in which the shake correction lens 1 is controlled to hold the position of the shake correction lens 1 at the time when the auxiliary illumination light emitting unit 5 pops up. In Example 2, although the auxiliary | assistant illumination light emission part 5 showed the example which performs the blurring correction control based on the vibration detection result detected by the vibration detection part 3 during the time t0 before the time of starting pop-up, Not limited to this, for example, for a predetermined time t1, a control value obtained by averaging the vibration detection results detected by the vibration detection unit 3 during the time t0 before the time when the auxiliary illumination light emitting unit 5 starts pop-up. The position of the vibration reduction lens 1 may be held at the position of, and processing such as removing or reducing the vibration component caused by the pop-up of the auxiliary illumination light emitting unit 5 measured and stored in advance is performed. It may perform shake correction control based on the vibration detection signal Tsu.

(7) In each of the embodiments, it has been described that the present invention is effective in preventing the display of the monitor 9 from unnaturally shaking. However, when the camera includes a video signal output terminal or the like. In addition, an effect of preventing unnatural shaking of the display of an external display device that displays image data output from the video signal output terminal or the like can be obtained.

1 is a cross-sectional view of a camera in Embodiment 1. FIG. It is a block diagram which shows the part with which this invention relates in the camera of Example 1. FIG. 6 is a flowchart illustrating a flow of a camera shake correction operation according to the first exemplary embodiment. It is a figure which shows an example of the detection value by the vibration detection part 3 when the auxiliary illumination light emission part 5 is not in pop-up operation. It is a figure which shows an example of the detected value by the vibration detection part 3 when the auxiliary illumination light emission part 5 pops up. It is a figure which shows the control waveform which CPU4 uses for position control of the blurring correction lens 1 when performing control which hold | maintains the blurring correction lens 1 in a fixed position when the auxiliary illumination light emission part 5 pops up in a present Example. 6 is a flowchart illustrating a flow of a camera shake correction operation according to the second exemplary embodiment. In this embodiment, when the auxiliary illumination light emitting unit 5 pops up, the CPU 4 performs the blur correction control based on the vibration detection result detected by the vibration detection unit 3 during the previous time t0. It is a figure which shows the control waveform used for position control. 10 is a flowchart illustrating a flow of a camera shake correction operation according to the third exemplary embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shake correction lens 2 Shake correction lens drive means 3 Vibration detection part 4 CPU
DESCRIPTION OF SYMBOLS 5 Auxiliary illumination light emission part 6 Auxiliary illumination light emission part moving means 7 Auxiliary illumination light emission part position detection part 8 Image sensor 9 Monitor 10 Photometry part 11 Manual pop-up button 12 Auxiliary illumination light emission part movement detection part 13 Image recording part

Claims (15)

A blur correction device that performs a blur correction operation for correcting image blur by relatively moving the position of an optical axis of a photographing optical system and a photographing unit,
The auxiliary illumination light emitting unit is movable between a storage position and a use position, the light emission preparation movement is performed to move the auxiliary illumination light emission unit from the storage position to the use position, and / or from the use position to the storage position. During a predetermined time from the start of the storage movement to move, the optical axis of the imaging optical system and the imaging are not used during the predetermined time, or the vibration detection signal is processed from the vibration detection signal. Controlling the relative position with the part,
A blur correction device characterized by the above. The blur correction device according to claim 1,
The optical axis of the photographing optical system when the auxiliary illumination light emitting unit starts the light emission preparation movement and / or storage movement during a predetermined time from the start time of the light emission preparation movement and / or storage movement of the auxiliary illumination light emission unit. Maintaining a relative positional relationship between the camera and the photographing unit;
A blur correction device characterized by the above. The blur correction device according to claim 1,
The auxiliary illumination light emission unit is obtained from the vibration detection unit before the start time of the light emission preparation movement and / or storage movement for a predetermined time from the start time of the light emission preparation movement and / or storage movement. Performing a shake correction operation based on the vibration detection signal that has been
A blur correction device characterized by the above. The blur correction device according to claim 1,
During a predetermined time from the start of light emission preparation movement and / or storage movement, the auxiliary illumination light emission section moves light emission preparation movement and / or storage movement from a vibration detection signal obtained from the vibration detection section. Performing a shake correction operation based on a signal that has been processed to remove or reduce signal components caused by
A blur correction device characterized by the above. A blur correction device that performs a blur correction operation for correcting image blur by relatively moving the position of an optical axis of a photographing optical system and a photographing unit,
The auxiliary illumination light emitting unit is movable between a storage position and a use position, the light emission preparation movement is performed to move the auxiliary illumination light emission unit from the storage position to the use position, and / or from the use position to the storage position. During a predetermined time from the start time of the moving storage movement, the image data used for moving image recording is fixed to the image data obtained by the auxiliary illumination light emitting unit before the start time of the light emission preparation movement and / or storage movement. ,
A blur correction device characterized by the above. A blur correction device that performs a blur correction operation for correcting image blur by relatively moving the position of an optical axis of a photographing optical system and a photographing unit,
In the shake correction permission state that permits the shake correction operation, the auxiliary illumination light emitting unit is movable between the storage position and the use position, and the light emission preparation movement for moving the auxiliary illumination light emission unit from the storage position to the use position And / or during a predetermined time from the start of the storage movement that moves from the use position to the storage position, the auxiliary illumination light emitting unit emits light of the photographing optical system at the start of light emission preparation movement and / or storage movement. Maintaining a relative positional relationship between the shaft and the imaging unit;
A blur correction device characterized by the above. A blur correction device that performs a blur correction operation for correcting image blur by relatively moving the position of an optical axis of a photographing optical system and a photographing unit,
In the shake correction permission state that permits the shake correction operation, the auxiliary illumination light emitting unit is movable between the storage position and the use position, and the light emission preparation movement for moving the auxiliary illumination light emission unit from the storage position to the use position And / or during a predetermined time from the start of the storage movement that moves from the use position to the storage position, the auxiliary illumination light emitting unit is obtained from the vibration detection unit before the start of the light emission preparation movement and / or storage movement. Performing a shake correction operation based on the vibration detection signal that has been
A blur correction device characterized by the above. A blur correction device that performs a blur correction operation for correcting image blur by relatively moving the position of an optical axis of a photographing optical system and a photographing unit,
In the shake correction permission state that permits the shake correction operation, the auxiliary illumination light emitting unit is movable between the storage position and the use position, and the light emission preparation movement for moving the auxiliary illumination light emission unit from the storage position to the use position And / or during a predetermined time from the start of the storage movement that moves from the use position to the storage position, the auxiliary illumination light emitting unit moves and / or stores the light from the vibration detection signal obtained from the vibration detection unit. Performing a shake correction operation based on a signal that has been processed to remove and / or reduce a signal component caused by movement,
A blur correction device characterized by the above. A blur correction device that performs a blur correction operation for correcting image blur by relatively moving the position of an optical axis of a photographing optical system and a photographing unit,
In the shake correction permission state that permits the shake correction operation, the auxiliary illumination light emitting unit is movable between the storage position and the use position, and the light emission preparation movement for moving the auxiliary illumination light emission unit from the storage position to the use position And / or during the predetermined time from the start of the storage movement that moves from the use position to the storage position, the auxiliary illumination light emitting unit starts the light emission preparation movement and / or the storage movement for a predetermined time from the start of the storage movement. Fixing to image data obtained before the time,
A blur correction device characterized by the above. In the blurring correction apparatus according to any one of claims 1 to 9,
The time when the auxiliary illumination light emitting unit starts the light emission preparation movement and / or the storage movement is the time when it is determined that the auxiliary illumination light from the auxiliary illumination light emitting unit is necessary based on the photometric output from the photometric unit, or The auxiliary illumination light emitting unit movement signal for moving the auxiliary illumination light emitting unit to prepare for light emission and / or storage is output.
A blur correction device characterized by the above. In the blurring correction apparatus according to any one of claims 1 to 9,
The time point when the auxiliary illumination light emitting unit starts the light emission preparation movement and / or storage movement is the detection result of the auxiliary illumination light emission part movement detection unit that detects the light emission preparation movement and / or storage movement of the auxiliary illumination light emission part. Is determined based on
A blur correction device characterized by the above. An interchangeable lens including the blur correction device according to any one of claims 1 to 11,
The imaging optical system;
The vibration detector;
A blur correction optical system that corrects image blur by forming at least part of the photographing optical system and moving in a plane substantially orthogonal to the optical axis;
A blur correction driving unit that drives the blur correction optical system;
Interchangeable lens. A camera body including the shake correction device according to any one of claims 1 to 11,
The photographing unit;
The auxiliary illumination light emitting unit;
A light emission preparation movement drive unit that moves and / or moves the auxiliary illumination light emission unit.
With
A camera body in which an interchangeable lens including the photographing optical system is detachable. The camera body according to claim 13,
The imaging unit is movably attached,
Having a blur correction driving unit for driving the photographing unit;
A camera body characterized by A camera including the shake correction device according to any one of claims 1 to 11,
The imaging optical system;
The vibration detector;
The photographing unit;
The auxiliary illumination light emitting unit;
A light emission preparation movement drive unit that moves and / or moves the auxiliary illumination light emission unit.
A blur correction driving unit that drives at least a part of the photographing optical system and / or the photographing unit;
Having a camera.

Images