JPH03134614A - Camera shake correcting device - Google Patents

Abstract

PURPOSE:To form an object image on all of an image formation face without defocusing by correcting the attitude variance of a reflecting means due to camera shake to satisfy a specific condition and holding the reflection means in the attitude before the camera shake. CONSTITUTION:If an afocal lens group 1, an image forming lens group 2, and an image pickup element 3 are turned at an angle rhor around the turning shaft of a reflection mirror 4 and are displaced to positions 1', 2', and 3' by camera shake rhor in the vertical direction on the way of image pickup of an object 16, optical axes 0'1 and 0'2 of the lens group 2' are deviated at the angle rhor from optical axes of the lens group 1 and the lens group 2. Therefore, light 17 from the object 16 which is made incident on the lens group 1 along an original optical axis 01 is inclined at the angle rhor from its optical axis O'. When the reflection mirror 4 is turned at an angle theta by the camera shake, the reflection mirror 4 is turned to satisfy relations theta=(2-r).rhov. Thus, deflection of the image of the object 16 due to the camera shake is prevented.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a camera shake correction device for preventing image shake caused by camera shake in a video camera or the like. [Prior Art] When a video camera is used with a metal frame, when a camera shakes, this is transmitted to the camera body, causing the subject image to shake on the imaging surface of the image sensor, causing shake in the reproduced image and deteriorating the image quality. Modern video cameras are equipped with zoom lenses, and the influence of camera shake poses a major problem, especially when capturing images with the zoom lens set to the telephoto side. Devices to prevent the effects of camera shake have been proposed in the past, and an example of this is the Japanese Patent Laid-Open No. 61-14
In Publication No. 7224, a Henfree prism as a reversing and displacing optical element and a light reversing and displacing optical element are arranged between an objective lens, a zoom lens, and an optical element, and a lens case containing these is placed in a camera body. In particular, a technique is disclosed in which the object image (image) is stabilized against camera shake using a Han7ley prism. In this technique, the posture sound of the Han7ley prism is controlled in response to a single hand shake, thereby making it possible to obtain a stabilized image at a fixed position within the lens case. [Problem to be solved by the invention] By the way, in the above-mentioned conventional technology, the ninth step to obtain the next image with the above-mentioned O stable is to set the focal length @fO behind the objective lens to form an image at an arbitrary position within the lens case. I have to install a Humphrey prism at the t/2 position. If we consider an object tube at infinity that is perpendicular to the optical axis, the image of this object by the objective lens will be formed on a plane perpendicular to the optical axis, but there is a Han7ley prism at the position above behind this objective lens. If the position of the lens changes, at a position within the lens case where a stable object image can be obtained, the object image will appear on nine different planes relative to the plane perpendicular to the optical axis. In other words, the subject image is tilted. This image of the subject formed by the zoom lens is also tilted by 9 degrees with respect to the two images @ which are in danger of forming the subject of the camera. In this case, even if the subject image is in focus at the center, the other parts are out of focus, and the out-of-focus becomes larger toward the periphery. In order to tolerate this defocus, it is necessary to use a lens with a thick reciprocal (r value) of the 9 aperture ratio, and for this reason, ? There was a problem in that the value was small, that is, it became difficult to use a bright lens with a large aperture ratio. SUMMARY OF THE INVENTION An object of the present invention is to solve such problems and to provide a camera shake prevention device Yr that uses a lens with a large aperture ratio to prevent image shake due to camera shake.

[0 Means for Solving the Problems] To achieve the above object, the present invention provides a 77-ocular lens group with a constant angular magnification that emits light rays from a subject as parallel rays, and an afocal lens group that It is composed of a reflecting means that reflects the light beam, and a control means that corrects the change in posture of the reflecting means due to hand shake and maintains the reflecting means in the posture before the hand shake. Nine, the present invention changes the angular magnification when the light ray from the subject is incident and performs zooming f? 5, a reflection means for reflecting the emitted light beam from the zoom afocal lens, and a control means for correcting posture fluctuations of the reflection means due to camera shake. (9) The present invention provides a lens group for forming a ray tube image from a subject, a reflecting means for reflecting light beams incident on the imaging lens group, and a system for correcting postural reaction of the reflecting means due to camera shake. and control means. 91 The present invention provides an optical imaging lens group for forming an image of light rays from a subject, an exit beam tube refraction of the imaging lens group, a refracting means that moves in parallel, and a posture change of the refracting means due to one hand shake. and a control means for correcting.

[For fvI]

The light rays from the subject pass through the afocal lens group or the zoom afocal lens, become parallel rays, are reflected by the reflecting means, pass through the desired lens of the camera, and are irradiated onto the imaging plane to form the subject image. Ru. Here, if one hand shake occurs, the afocal lens group, the zoom afocal lens, or the lens system imaging plane will be displaced with respect to the absolute spatial coordinate system. The magic reflex means is also this seat II.
Since the attitude changes in the I system, the control means
Afocal V before camera shake: Even if the light rays along the optical axis of the The posture of the 1-reflector hand R is corrected as follows. As a result, the subject does not move on the imaging plane, and image blur due to camera shake can be prevented. On the other hand, the displacement of the 77 ocular lens group or the zoom afocal lens due to one camera shake causes the subject to be equivalently tilted, and as a result, the subject image is also tilted with respect to the imaging plane. However, due to the afocal lens group or zoom afocal lens, the subject is at or near infinity from the camera's lens system, and for this reason, the angle of inclination of the subject image with respect to the imaging plane is ignored. be small enough to be able to do so. As a result, there is no defocusing of the subject image over the entire image plane, and it becomes possible to use a bright lens with a small rm. In addition, the actual object will be far away when viewed from the imaging lens system of camera 2, and the angle of inclination of the object image with respect to the imaging plane will be negligibly small. By providing a reflecting means in front of the lens group and correcting the light rays from the subject with the reflecting means, image shake due to camera shake is corrected, there is no defocusing of the subject image over the entire imaging plane, and the F value is small. It becomes possible to use a bright i-lens tube. In addition, if image blur due to camera shake is corrected by refracting the light 1s and moving the light rays from the imaging lens group in parallel, the tilt of the subject image with respect to the imaging plane will be reduced. W-IF is applied to the entire image plane without occurring.
As a result, there is no defocusing of the subject image, and a bright lens with a small F number can be used. [Examples] Examples of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing an embodiment of the camera shake prevention device according to the present invention, in which 1 is an afocal lens group, 2 is an imaging lens group, 5 is an image sensor, 4 is a reflecting mirror, and 5 and 6 are Holding frame, 7 and 8 are angular velocity detectors, 9 is a zoom position detector, 10
is a motor, 11 is a rotation angle detector, 12 is a control circuit, 1
s is a rotational angular velocity detector, 14 is a variator lens group, 1
5 is a compensator lens group. 9. FIG. 2 is a side view of FIG. 1, where 19 is a control circuit, 20 is a rotational angular velocity detector, 21 is a motor, and 22 is a rotational angle detector.
The parts corresponding to those shown in FIG. 1 are equipped with the same code tube. FIG. 3 is a block diagram of the control circuit 19 shown in FIG. 2. 2
8.29, 55.55 and 39 are amplifiers with To 50
is a low-pass filter, 31 is a buffer amplifier, 52 is a drive amplifier, 34 is a signal from the correction switch 24, 4S is a signal from the amplifier 39, 44 is a signal input to the buffer amplifier 51, 45 is from the rotation angle detector 22 (represented as DH+. The same reference numerals are given to the parts corresponding to the jg2 diagram. FIG. 4 is a block diagram showing the configuration of the range regulating circuit 40 of FIG. 3. 46 is a time constant circuit, 47 is a gain changing means, 48 is a positive/negative determining means, 49 is a rotation angle determining means, 50
is a circuit switch, 51 is a good signal that passes through the circuit switch,
52 is the output of the rotation angle determining means. Parts corresponding to those in FIG. 5 are given the same reference numerals. In FIGS. 1, 2, 5, and 4, the afocal lens group 1 with almost zero refractive power and almost infinite focal length has a variator lens group 14 and a compensator lens group 15 that move relative to each other. Therefore, it has a zoom function that changes the angular magnification. In this example, the angular magnification at the telephoto end is rwm14, and the angular magnification at the wide-angle end is rs+m (L4). The detector 9 outputs electricity (i. The holding frame S has a Tov and an optical axis on the wide-angle side of the angle formed by the optical axes 02 and 02 in a plane including the optical axes 04 and 0□. O
The axis 0. which makes the same angle as 1,0□. The holding frame 6 is attached in a gimbal configuration so as to be rotatable around the .
This holding frame 6 has an afocal lens group 10 optical axis 0,
And the imaging lens group 20 reflects rotatably around an axis perpendicular to the optical axis 02! I4 is installed. 100 is the center axis of the upper O rotation of the reflecting mirror 4. Note that the arrow φyo indicates the rotation direction of the holding frame 6, and ψ indicates the rotation direction of the reflecting mirror 4.
0 rotation direction, and ζ and ri represent hand shake in the horizontal and vertical directions, respectively. The holding frame 5 is provided with a motor 10 that rotates the holding frame 6 in the direction of the arrow φ, and the holding frame 6 is provided with a motor 10 that rotates the holding frame 6 in the direction of the arrow φ. , a motor 21 is provided for rotation in the directions. motor 2
1, the control circuit 19 is rotated through the control circuit J81 and the control shaft 23. The shaft 23 is connected to the reflecting mirror 4 so that the mirror 4 rotates together with the shaft 23. The other end of the shaft 25 rotates the circumferential velocity detector once. The rotation angular velocity detector 20 outputs the angular velocity of the shaft 23 about the rotation center axis 0 with respect to the holding frame 6. The shaft 23 is rotatably held. The reflecting mirror 4 is provided with a rotation angle detector 22 that outputs the angular position around the rotation center axis 0 with respect to the holding frame 6, and an angular velocity detector 7 that detects camera shake in the vertical direction. When this camera shake is detected, the output is input to the variable amplifier 56. On the other hand, the output of the rotational angular velocity detector 20 is
7 is input. The variable amplifiers 34 and 57 are turned on and changed. The variable device 58 changes the ratio of ν3 and w4 according to the output of the zoom position detector 9. The output of the variable amplifier 57 is subtracted by the output of the variable amplifier 36, and after passing through the amplifier 39, is input to the range regulating port 40, and the circuit switch 50t''
After passing through, the signal is inputted to the integral "a 34", the buffer amplifier 31, and the low-pass filter 50 through the gain changing means 47.
. After the output of the rotational angular velocity detector 20 passes through the amplifier 28 , the difference between the output and the output of the low-pass filter 1130 is input to the amplifier 29 . The output of the rotation angle detector 22 is amplified 1li1!5
After passing through s, the difference with the integrator 540 output is input to the amplifier 35. Buffer increase @ device 51. Increase @1ti2? The outputs of the amplifier fa55 and the amplifier fa55 are added together and input to the drive amplifier 52. The output of the drive amplifier 32 is input to the motor 21, and the motor 21 rotates around the rotation center axis 0 by 4t''. On the other hand, the output after passing through the circuit switch 50 is simultaneously input to the positive/negative discrimination means 48. The positive/negative determining means 48 inputs a ratio signal to the rotation angle determining means 49 depending on whether the input direction is positive or negative.The output of the rotation angle detector 22 (2) is also input to the rotation angle determining means 49 at the same time. .Rotation angle determining means 4
At 9, the output of the rotation angle detector 22 exceeds the predetermined range t, and at 9 o'clock, a signal of an amount corresponding to the exceedance tt is output. At this time, the output 52 of the rotation angle determining means 49 can be changed by one based on the output of the positive/negative determining means 48. The output 52 of the rotation angle determining means 49 is as follows. The signal is input to the gain changing means 47, and the amount of output 440 of the gain changing means 47 is increased or decreased. The time constant circuit 46 receives a signal 41 from the correction switch 24.
is input. In the time constant circuit 46, the circuit switch 50f is opened and closed in response to the signal 41. At the same time, circuit switch 5
When closing o, the output 44 of the gain changing means is
0'I/kf: Decrease and increase the amount of output 44 with a certain time constant after closing. Also, when opening the 1-circuit switch 50, the output 4 is set at a certain time constant.
After 40 ji'i reduction, the circuit switch 50 is opened. In this embodiment, the above-mentioned time constant is set to about 1 second, and the decrease and increase are made to increase and decrease exponentially with respect to time. Further, the output amount of the gain changing means 47 increases or decreases from 1 to 0 at the 9 o'clock ratio, where the input '1 pressure is v5 and the output voltage is v6. Next, the operation of this embodiment will be explained using the drawings. FIG. 5 shows camera shake in the vertical direction. In the figure, if the afocal lens group 1°, the imaging lens group 2, the image sensor 5, and the reflecting mirror 4 are in the state shown by the solid line, then the optical axis of the afocal lens group 1 is 0. Above, the light ray 17 emitted by the distant object 16 has an optical axis of 0. The light passes through the afocal lens group 1 in parallel to , is reflected by the reflecting mirror 4, and enters the imaging lens group 2. Since the incident light of the imaging lens group 2 is parallel to its tip axis 02, the image of the subject 16 (not shown) by the 77-ocal lens group 1 is formed sufficiently far away from the imaging lens group 2. This means that the image of the subject 16 is transferred to the image sensor 3 by the imaging lens group 2.
The image is formed on the imaging plane. While imaging this subject 14, due to vertical camera shake,
Rotation axis of reflection lR4: Afocal lens group 1, imaging lens group 2, and image sensor S are rotated by an angle of -7 around the center, and are at the positions indicated by dashed lines with the reference numeral 1'21.5lyk. Let the displacement be t. At this time, the optical axis of the afocal lens 1' and the imaging lens group 2' is 0. ', O; are shifted by an angle from the optical axes 0, , 02 of the afocal lens group 1 and the imaging lens group 2 at their original positions, respectively. In this method,
Original light 1#40. The light ray 17 from the subject 16 that is incident on the afocal lens group 1 along the optical axis O1'
It becomes more complicated by the angle p. By the way, in general, when a light ray entering an afocal lens group with an angular magnification r is inclined by an angle with respect to its tip axis, the exit angle φ of this light ray is expressed by the following equation. r * tana, tanφ − (1)
Normally, the angle of incidence due to camera shake is sufficiently small, about 2 degrees, so the above equation (1) can be expressed as follows. r@J, -1 ... (2) By the way, reflection #! due to vertical camera shake ρ! 4 is also a sign!
41, the camera rotates by an angle around the rotation axis 0 as shown by the broken line, and this camera shake β is detected by the angular velocity detector 7 (FIG. 1). As a result of the above, the first reflecting mirror 4 is rotated by the angle β in the direction of the arrow φ7. Due to this rotated angle l, the reflection R4 changes from the original position indicated by 4 to the position indicated by 4'', causing a relative go rotation and the following state. The emitted light ray 18 is incident on the reflecting mirror 4 indicated by 1 element 4 with the angle difference of ψ-pv described above.#O rotation occurs and nine reflections occur, IIA#K
The original rays are reflected by 0□, -1+
It is emitted as 05 with an angular difference of 2.-. In this example, Hiro? −p, +2emp. and the ray of 0□' is at an angle with respect to 0□. Using the rotation angle of reflection @ a # and the angular magnification rt'' of the camera shake pv1 afocal lens group, the relationship between a, p, and at is expressed by the following equation (21IC). In the control circuit 19 shown in the figure, l!59
In this example, when the increase @ degree of the voltage reaching the reflecting mirror 4 is set to A-S6, X and 7C) ffl are detected by the output of the zoom position detection 1iii9, and the round corner magnification r is set.
It is changed by a variable device 58 according to the time. An example of this combination is shown below. r”2-0 (x, 7)m(1,o)r = 2.4
(X #7') = (17#-α3)r-1
4(x,7)-((L58.-(L42)) With the above settings, #, becomes the following formula. ) is the same as the formula, and the subject 16 (Fig. 7g5) is always captured by the image sensor 5' regardless of the camera shake ρ.
(Fig. 5). Next, regarding the operation of the range regulation circuit 40, use FIG.
explain. Fig. 6 shows the screen 54 sent to the image sensor 5' (Fig. S) when the image of the object 55 is captured at the center of the image sensor 3' (Fig. N5), and the background other than the object 55. It is a conceptual diagram showing 5B. Normal camera shake (Figure 5) is screen 5
Move 4 to the arrow indicated by 55. However, due to the function of the correction circuit 19 mentioned above, the subject 53 is stably positioned in the center of the screen 54O. However, the magnitude of the camera shake 550 is not constant, and may be large as shown by the arrow 56. In this embodiment, when this large hand error 56 enters the range 57 in which camera shake is not corrected, an output 52 (Fig. wL4) is output from the above-mentioned 9 rotation angle determining means 49 (Fig. 4). This output 52 (FIG. 4) causes gain modifier R47 (FIG. 4) to decrease the amount of F output 44O. Entered range 57 where camera shake is not corrected: According to lK, output 44 (Figure 4) 1
2) By reducing t, large camera shake 56 is gradually stopped being corrected. In addition, even if there is a large camera shake 56, one screen 540
The background 58 is not suddenly located on the middle husband, but the background 5 is gradually moved to the middle husband.
8 is located. It was. Even if the camera shake is not corrected in the range 57 due to the large camera shake 56, the camera shake 55 towards the subject 53 occurs, and the operator identification means 4B (N4
Figure) From K, the output 5 of the rotation angle determining means 49 (Figure 4)
2 (FIG. 4) to a state without one hand shake 53. As a result, the subject 55 corrects the camera shake 55 that occurs toward the subject 53 within the range where camera shake is not corrected. Camera shake 550 correction is performed by a signal 41 (Fig. 4) from the correction switch 24 (Fig.
Close conversation is made by opening and closing (Fig.). At this time, the gain changing means 47
When the O output 44 (FIG. 4) increases and decreases, the beginning and end of the correction become smooth and smooth. Due to the above-described operation of the range regulation circuit 40, when using the lens of this embodiment, when the correction switch 21 is turned on, the subject 53 is easily located at the center of both surfaces 54O, and the image shake due to camera shake 55 is prevented. To prevent. Big camera shake 56
When this occurs, the subject 55 slowly begins to move from the center of one screen 54, but by generating a hand shake 55 in the direction of the subject 55, it is possible to stop the subject 5s from moving. Furthermore, when a signal for turning off the correction is input to the correction switch 21, the subject 53 slowly begins to move in response to the camera shake 55, so that there is no sense of discomfort. It goes without saying that the configuration of the control circuit is not limited as long as it is the ninth step to obtain the dynamic fif in this embodiment. FIG. 7 is a partial sectional view showing another embodiment of the image stabilization device according to the present invention. 14 is variator lens group%
15 is a compensator lens group. 58 is an imaging lens group. Parts corresponding to FIGS. 1 and 2 are given the same reference numerals. In FIG. 7, the variator lens group 14 and the compensator lens group 15 are built into the imaging lens group 58, and a reflection tR4 is provided in front of the optical axis 0□ of the imaging lens group 58. The variator lens group 14 and the compensator lens group 15 (the zoom function by D movement is the same as that shown in FIG. 1, but they operate inside the imaging lens group 58. To-
The configuration is the same except that the zoom position detector 9 is also omitted, resulting in a nine-piece configuration. In the above configuration, the operation will be explained below. Control circuit 5
9 is reflection @4 (Q vertical rotation angle and vertical camera shake, horizontal rotation angle and camera shake p8, respectively 1, /T 1mm 1T'''ma 'H-2'x As a result, the object 16 (Fig. 5) is imaged at the center of the image sensor 5, regardless of camera shake p, , pIK, because the afocal lens group 10 angle magnification r is , the same as 10 o'clock. This embodiment described above has the effect of not requiring a change in correction control according to the zoom position. FIG. It is a partial sectional view showing an embodiment. Parts corresponding to FIGS. 1 and 2 are given the same reference numeral 9'. 60 is an imaging lens group, and 61 is a transparent parallel plate with a refractive index No. The angular velocity detectors 7 and 8 are held between the imaging lens group 60 and the image sensor 5 by holding frames 6 and 5. In this embodiment, the angular velocity detectors 7 and 8 are
The structure is the same as that shown in FIG. 1 except that it is directly fixed to the lens barrel 65 of 0. FIG. 9 shows the configuration of the control circuit 62. Parts corresponding to those in FIG. 5 are given the same reference numerals. In the control circuit 62, the motor 21 rotates the glass flat plate 61'i,
The configuration is the same as that in FIG. 5 except that the angular velocity detector is not connected to the glass flat plate 61. In the above configuration, the motion fii will be explained below. In the control circuit 62, the angle t''w of the glass flat plate 61 with respect to the lens barrel 65 is determined by f.
mm, and is set to rotate in both the vertical and horizontal directions at 9 o'clock with the following relationship. However, d is the glass flat plate 61 (D thickness along the optical axis OK, N is the glass flat plate 6
This is the refractive index of the glass constituting 1. As a result, the light rays are moved in parallel by the glass flat plate 61, which is a parallel flat plate, thereby correcting the image shake caused by one camera shake, and the subject 16 (Fig. 5) is
A motion f'1f is formed in the center of the image sensor 5 in the same way as shown in the figure. In this example, a specific numerical example of 0 is shown below.
= t58913, camera shake p wm [17' imaging lens group 600 focal length 1l11 r wm 55 mm, thickness of glass flat plate 61 d = 5 mm O, angle #-20
' can be corrected. As described above, in this embodiment as well, it is possible to obtain a stable image without relying on one hand movement of 9 IVc. [Effects of the Invention] As explained above, according to the present invention, it is possible to prevent the subject image from shaking due to camera shake on the imaging plane, and
By arranging the reflection lens behind the afocal lens group, the tilt of the subject image on the imaging plane is small, and the subject image can be formed across the entire imaging plane without defocusing, and the aperture ratio This makes it possible to use small, bright lenses to obtain clear images without shake. (9) By directly rotating the light beam from the subject in front of the imaging lens group, the tilt of the subject image on the imaging plane is small, and the subject image is formed across the entire imaging plane without defocusing. This makes it possible to apply a small hFiA lens with a small aperture ratio of 1, making it possible to obtain clear images without shake. (9) By moving the light beam in parallel in front of the imaging plane, the tilt of the subject image on the imaging plane is minimized. The object image can be formed over the entire image plane without defocusing, and a bright lens with a small aperture ratio can be used to obtain a clear image without blur.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of an image stabilization device according to the present invention, FIG. 2 is a side view of FIG. 1, and FIGS. 5 and 4 are block diagrams of a control circuit of this embodiment. Figure 5 is an explanatory diagram of the operation of the embodiment O. Figure 6 is a conceptual diagram showing the screen sent out by the image sensor and the background outside the object plate. Figure 7 is another implementation of the image stabilization device according to the present invention. FIG. 8 is a partial sectional view showing still another embodiment of the image stabilization device according to the present invention, and FIG. 9 is a configuration diagram of a control circuit. Explanation of symbols tel', 48... Afocal lens group, 2.2'
, 49... Imaging lens group, 5... Image pickup element, 4... Reflector, 5.6.45... Holding frame, 7.8... Angular velocity detector, 10j21... Motor , 61-, Glass flat plate. ” 60 5th [a M4 Figure 1 6th Figure 70 80 6QQ4 Attack L Lesbian Group

Claims (1)

[Claims] 1. In a device that forms an image of a subject (16) on an imaging plane (3) through a desired lens system (2), a light ray (17) from a subject (14) is formed. an afocal lens group (1) with an angular magnification (γ) that is emitted as parallel light rays; and a reflecting means () that reflects the emitted light ray (18) of the afocal lens group (1) and makes it enter the lens system (2). 4), correcting the attitude change (θ) of the reflecting means (4) due to camera shake, and adjusting the angle θ of the reflecting means (4) with respect to the absolute spatial coordinate system.
When the angle of camera shake is ρ, θ=(2-γ)/(2)ρ
control means (
12, 19), and the image forming surface (3)
An image stabilization device characterized in that it is configured to stabilize an image of a subject. 2. In a device configured to form an image of a subject (16) on an imaging plane (3) through a desired lens system (58), the light rays from the subject (16) are reflected to form the image of the subject (16) on the lens system (58).
), and the attitude change (θ) of the reflecting means (4) due to hand shake is corrected, and the angle θ of the reflecting means (4) with respect to the absolute spatial coordinate system and the angle ρ of the hand shake are set. control means (59) for rotating the reflecting means (4) so that the relationship θ=(1)/(2)ρ is established, An image stabilization device characterized by being configured to stabilize a subject image. 3. In an apparatus configured to form an image of a subject (16) on an image forming surface (3) through a desired lens system (60), the exiting light beam of the lens system (60) is refracted to form an image of the object (16) on the image forming surface (3). 3)
a refractive displacement means (61) to make the light incident on the refractive displacement means (61); and a control means (62) for correcting the attitude change of the refractive displacement means (61) due to hand shake and rotating the refractive displacement means (61).
), and is configured to stabilize a subject image on the imaging plane (3) against camera shake. 4. The control means (12, 19, 59, 62) controls the angle detection means (22) of the reflection means (4) or the refraction displacement means (61) with respect to the lens system (2, 58, 60).
) and the range of the output of the angle detection means (22),
The amplification degree is changed according to the outputs of the means (49, 47) for changing the amplification degree, the means (7, 8) for detecting the direction of the camera shake, and the means (7, 8) for detecting the direction of the camera shake. The image forming surface (48, 47) is stabilized by increasing or decreasing the intensity of correction by the control means (12, 19, 59, 62) depending on the magnitude and direction of camera shake.
The image stabilization device according to claim 1, 2 or 3, further comprising a configuration that reduces rapid movement of the subject image in step 3). 5. The control means (12, 19, 59, 62) has a circuit opening/closing means (24) which can be operated arbitrarily by the photographer, and outputs a signal delayed by a certain period of time from the signal of the circuit opening/closing means (24). the output (44) of the means (47) for changing said amplification degree by said delay means (46);
The object image on the imaging plane (3) is stabilized by changing the intensity of correction by the control means (12, 19, 59, 62) by changing the circuit opening/closing means (24). Claim 1 comprising a structure that reduces sudden movement of
, 2, 3 or 4.