JP2008089995A - Image blurring correction photographic lens and optical apparatus having the same - Google Patents

Image blurring correction photographic lens and optical apparatus having the same Download PDF

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Publication number
JP2008089995A
JP2008089995A JP2006270910A JP2006270910A JP2008089995A JP 2008089995 A JP2008089995 A JP 2008089995A JP 2006270910 A JP2006270910 A JP 2006270910A JP 2006270910 A JP2006270910 A JP 2006270910A JP 2008089995 A JP2008089995 A JP 2008089995A
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Japan
Prior art keywords
angular velocity
image
lens unit
velocity sensor
image blur
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Withdrawn
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JP2006270910A
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Japanese (ja)
Inventor
Shigemasa Sato
重正 佐藤
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Nikon Corp
株式会社ニコン
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Priority to JP2006270910A priority Critical patent/JP2008089995A/en
Publication of JP2008089995A publication Critical patent/JP2008089995A/en
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Abstract

An image blur correction photographic lens that can be reduced in size and thickness while providing an angular velocity sensor, and an optical apparatus including the same.
A photographic lens unit having a lens for condensing light from a subject, an image pickup device arranged on an image plane of the lens to pick up an image of the subject, and light from the photographic lens unit. Angular velocity sensors 6 and 7 disposed on at least one plane substantially parallel to the axis, and the angular velocity sensors 6 and 7 detect blur of the photographic lens unit 3, and the image plane on the image plane is detected. An image blur correction photographing lens 2 having an image blur correction function for correcting image blur of a subject, and an optical apparatus 100 including the image blur correction photographing lens 2.
[Selection] Figure 1

Description

  The present invention relates to an image blur correcting photographing lens mounted on a small digital camera and a camera having the same.

Conventionally, in a small digital camera, an angular velocity sensor for detecting camera shake due to camera shake or the like has been disposed around a substrate on which an image sensor in a photographing lens unit is disposed (for example, Patent Document 1).
JP 2005-189573 A

  However, along with recent miniaturization and thinning of digital cameras, photographing lens units mounted on digital cameras are also becoming smaller and thinner. As a result, the cross-sectional shape (thickness of the photographic lens unit) orthogonal to the optical axis of the photographic lens unit is almost the same size as the image sensor, making it difficult to place the angular velocity sensor around the image sensor as in the past. ing.

  The present invention has been made in view of the above problems, to provide an image blur correction photographing lens to allow smaller and thinner while disposed an angular velocity sensor, an optical apparatus including the same.

  In order to solve the above problems, the present invention provides a photographic lens unit including a lens that collects light from a subject, and an image sensor that is disposed on an image plane of the lens and captures an image of the subject. has Toka angular velocity sensor which is disposed substantially at least one side of a plane parallel to the optical axis of the taking lens unit, it detects the shake of the photographing lens unit in the angular velocity sensor, of the subject on the image plane Provided is an image blur correction photographing lens having an image blur correction function for correcting image blur.

  The present invention also provides an optical apparatus comprising the image blur correcting photographic lens.

  According to the present invention, it is possible to provide an image blur correction photographing lens that can be reduced in size and thickness while providing an angular velocity sensor, and an optical apparatus including the image blur correction photographing lens.

  Hereinafter, embodiments will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic configuration diagram including a partial perspective view of a camera including an image blur correction photographing lens according to the first embodiment. The XYZ axes are defined as shown in FIG. FIG. 2 is a schematic cross-sectional view taken along the line AA of FIG. FIG. 3 shows an example of a flexible substrate (hereinafter abbreviated as FPC) used in the first embodiment.

  1 to 3, a digital camera 100 includes a camera body 1 provided with a liquid crystal monitor 101 and the like, and a photographing lens 2 attached to the camera body 1 so as to be rotatable about the X axis. . A photographing lens unit 3 is disposed inside the photographing lens 2.

  The photographing lens unit 3 is composed of a zoom lens composed of a plurality of lens groups (not shown), and an image pickup device 4 for picking up a subject image is disposed on the image plane side of the zoom lens. The image pickup device 4 is connected to the FPC 5 and is lined with a holding plate (not shown), and then fixed to the image plane position of the photographing lens unit 3 with a screw or the like through the holding plate.

  A uniaxial angular velocity sensor 6 and a uniaxial angular velocity are provided on two planes a and b that are substantially parallel to the optical axis (parallel to the Z axis) of the photographic lens unit 3 and that are orthogonal to each other. A sensor 7 is fixed to the taking lens unit 3 via vibration absorbing members 8 and 8. The plane a is a plane substantially parallel to the major axis of the image sensor (for example, CCD, CMOS, etc.) 4, and the plane b is a plane substantially parallel to the minor axis of the image sensor 4. Here, the uniaxial angular velocity sensor 6 detects the angular velocity around the X axis, the uniaxial angular velocity sensor 7 detects the angular velocity around the Y axis, and the two uniaxial angular velocity sensors 6, 7 detect the blur direction and blur amount of the photographing lens unit 3. It is the structure which can be done. If the uniaxial angular velocity sensors 6 and 7 are arranged on two planes (for example, plane a and plane b) perpendicular to each other of the photographic lens unit 3, the photographic lens unit 3 is moved from the subject side to the image sensor 4 side. It is possible to arrange them at predetermined positions.

  As shown in FIG. 2, a concave hole corresponding to the shape of the uniaxial angular velocity sensors 6 and 7 is formed in the photographing lens unit 3 on the plane a and the plane b of the photographing lens unit 3, and vibration absorption is performed in the concave holes. The uniaxial angular velocity sensors 6 and 7 are embedded and fixed via the members 8 and 8. With this configuration, the amount of the uniaxial angular velocity sensors 6 and 7 protruding outward from the photographing lens unit 3 can be minimized, and the photographing lens unit 3 can be reduced in size and thickness. . In addition, when there is room in the space between the cover member 2a of the photographic lens 2 and the photographic lens unit 3, the photographic lens unit 3 is vibrated on the plane a and the plane b without forming a concave hole. It is also possible to fix the angular velocity sensors 6 and 7 through the absorbing members 8 and 8. The uniaxial angular velocity sensors 6 and 7 are fixed by bonding or screwing. For the vibration absorbing members 8, 8, for example, rubber, sponge, silicon gel or the like can be used.

  The vibration absorbing members 8 and 8 are arranged to absorb vibration when the lens 11 fixed to the lens frame 10 is driven through the lens guide 12 in the optical axis direction through a lens driving device (not shown). In addition, it is possible to prevent erroneous detection of the uniaxial angular velocity sensors 6 and 7 by absorbing vibration during zooming, focusing, and driving the image shift lens. Thus, the photographing lens unit 3 of the first embodiment constitutes a zoom lens having an image blur correction function.

  As shown in FIGS. 1 and 3, the image sensor 4 and the uniaxial angular velocity sensors 6 and 7 are connected and fixed on the same FPC 5 and bend the FPC 5 along each surface of the photographing lens unit 3. Thus, the image sensor 4 and the uniaxial angular velocity sensors 6 and 7 can be arranged at predetermined positions of the photographing lens unit 3. Connections to the image sensor 4 and the uniaxial angular velocity sensors 6 and 7 are connected by respective wirings formed on the FPC 5, connected to a connector (not shown) of the camera body 1 via the terminal portion 13, and connected to the camera body 1. Control signals can be sent and received.

  As described above, in the first embodiment, the imaging element 4 and the uniaxial angular velocity sensors 6 and 7 are arranged on the same FPC 5, and the FPC 5 is bent along each surface, so that the imaging lens unit 3 is placed at a predetermined position. The imaging element 4 and the uniaxial angular velocity sensors 6 and 7 are arranged in a compact manner, and the photographing lens unit 3 is reduced in size and thickness.

  Next, the shape of the FPC will be described with reference to FIGS.

  3 (a) shows the FPC 5 substantially L-shaped as shown in FIG. 1 shows a state of arranging the imaging element 4 and the uniaxial angular velocity sensor 6 and 7 on a single FPC 5 to FPC 5. Then, by bending at the broken line, allows the mounting plane a of the mounting surface and the photographing lens unit 3 of the imaging device 4 of the imaging lens unit 3, and a uniaxial angular velocity sensor 6 and 7 in the plane b of the imaging lens unit 3, respectively I have to. FIG. 3B shows a substantially L-shaped FPC 5a which is a modification of the FPC 5 of FIG. 3A. The uniaxial angular velocity sensor 7 is arranged on the plane a of the photographing lens unit 3 of FIG. 'Is a PFC that can be arranged on the plane b' of the photographing lens unit 3 facing the optical axis of the plane b of the photographing lens unit 3. FIG. 3C shows a substantially U-shaped FPC 5b which is a modification of FIG. 3B. The uniaxial angular velocity sensor 7 is formed on the a surface of the photographing lens unit 3 in FIG. The FPC 5b can be disposed on the surface b ′ of the photographic lens unit 3 facing the optical axis of the surface b of the photographic lens unit 3. Needless to say, the shapes of the FPCs 5, 5a and 5b can be variously modified in addition to the above three examples.

  FIG. 4 shows an example of the FPC 15 when using one biaxial angular velocity sensor 16 instead of using two uniaxial angular velocity sensors 6, 7. Here, the biaxial angular velocity sensor 16 is a sensor capable of detecting angular velocities in two orthogonal directions.

  FIG. 4A shows an example in which the image sensor 4 and the biaxial angular velocity sensor 16 are arranged on a substantially rectangular FPC 15 while being separated by a predetermined distance. By bending by the dashed line portion of the FPC 15, in which can be disposed and arranged surface of the imaging device 4 of the imaging lens unit 3 shown in FIG. 1, a biaxial angular velocity sensor 16 in the plane b 'of the photographing lens unit 3 .

  FIG. 4B is a modification of FIG. 4A, and the image pickup device 4 and the biaxial angular velocity sensor 16 are arranged on a substantially rectangular FPC 15 and bent at the broken line portion of the FPC 15 to obtain FIG. The biaxial angular velocity sensor 16 is disposed on the arrangement surface of the imaging element 4 of the photographing lens unit 3 shown and the plane b of the photographing lens unit 3.

  FIG. 4C shows the image sensor 4 of the photographic lens unit 3 shown in FIG. 1 by disposing the image sensor 4 and the biaxial angular velocity sensor 16 on a substantially L-shaped FPC 15a and bending it at the broken line portion of the FPC 15a. The biaxial angular velocity sensor 16 is arranged on the arrangement surface and the plane a.

  FIG. 5 shows a modification of the FPC, and the imaging element 4 and the uniaxial angular velocity sensors 36 and 37 are arranged in the photographing lens unit 3 using two FPCs, that is, the FPC 25 for the imaging element 4 and the FPC 35 for the angular velocity sensor. An example is shown. The FPC 35 is connected to the control unit of the camera body 1 via the terminal part 13 of the FPC 25 by connecting the terminal part 38 to the connector 28 on the FPC 25. Thus, by separating the FPC 25 for the image sensor 4 and the FPC 35 for the uniaxial angular velocity sensors 36 and 37, the degree of freedom of arrangement of the uniaxial angular velocity sensors 36 and 37 can be improved. Further, since the FPCs 25 and 35 can be formed in dedicated shapes, the FPCs 25 and 35 can be easily created, and the manufacturing cost can be reduced.

  3-5 angular velocity sensor mounted on each FPC shown in 6,7,6 ', by the arrangement of 16,36,37, respectively, X-axis around the photographing lens unit 3 of Figure 1, and angular velocity about the Y axis Can be detected.

  Hereinafter, the image blur correction operation of the digital camera 100 shown in FIG. 1 will be briefly described. The case of using the FPC of FIG. 3A will be described as a representative, but the same applies to the case of using other FPCs. In the digital camera 100 shown in FIG. 1, a photographing lens 2 is provided on a camera body 1 so as to be rotatable around the X axis.

  The photographer rotates the photographing lens 2 toward the subject, observes the subject image picked up through the image pickup device 4 of the photographing lens unit 3 on the liquid crystal monitor 101 of the camera body 1, and has a desired composition. At that time, the shutter button is operated by pressing the release button 102, and the subject image is captured through the image sensor 4.

  When the release button 102 is pressed, a uniaxial angular velocity sensor 6, 7, which is provided in the photographic lens unit 3, has a control unit in which the photographic lens 2 is shaken due to camera shake or the like. To detect through. The control unit is provided with an anti-vibration lens provided in the photographic lens unit 3 for correcting the image blur of the subject image on the image sensor 4 caused by the blur of the photographic lens 3 based on the signals of the uniaxial angular velocity sensors 6 and 7. The amount of movement in the direction perpendicular to the optical axis is calculated, and the image stabilization lens is driven via the image stabilization lens driving device to correct image blur on the image sensor 4. In this way, a subject image free from image blur is picked up via the image pickup device 4 and stored in a memory built in the camera body 1. In addition to the method of moving the image stabilizing lens in the direction orthogonal to the optical axis, the method of moving the image sensor 4 in the direction orthogonal to the optical axis may be adopted for the image blur correction.

  The photographing lens 2 and the camera body 1 and the camera integrated type, but the angular velocity sensor 6 for detecting the camera shake or the like is installed in the camera body 1 side, is pivotable taking lens 2 as shown in FIG. 1 In the case of a camera, it is difficult to correctly detect the shake of the photographing lens 2 even if the angular velocity sensor is arranged on the camera body 1 side.

  In the first embodiment, since the angular velocity sensors 6 and 7 are arranged in the photographing lens unit 3, it is possible to accurately detect the shake of the photographing lens 2. In addition, even if the photographing lens 2 is set at any angle with respect to the X axis of the camera body 1, the image blur on the image sensor 4 can be corrected satisfactorily.

  Note that the photographing lens 2 may be configured to be rotatable with respect to the camera body 1 as shown in FIG. 1, or may be configured to be removable from the camera body 1. When the photographic lens 2 is configured to be removable from the camera body 1, information may be transmitted and received between the photographic lens 2 and the camera body 1 by a cable or wirelessly. As described above, even if the camera body 1 and the photographing lens 2 are separated from each other, since the angular velocity sensors 6 and 7 are disposed in the photographing lens unit 3, image blur due to camera shake or the like can be corrected. Moreover, the digital camera 100 has a zoom button or autofocus button or the like, and although the photographic lens 2 is autofocus zoom lens capable of, its operation, effects a is a detailed description known omitted.

(Second Embodiment)
Next, a second embodiment will be described with reference to the drawings. FIG. 6 is a schematic diagram including a partial perspective view of the camera according to the second embodiment. FIG. 7 is a schematic view of a taking lens unit of a camera according to the second embodiment. The same code | symbol is attached | subjected to the structure similar to 1st Embodiment. Further, the XYZ axes are defined as shown in the figure.

  A digital camera 200 shown in FIG. 6 includes a bending type photographing lens unit 203 in order to achieve a reduction in size and thickness. The taking lens unit 203 is a zoom lens incorporating an autofocus mechanism, and is a taking lens having an image blur correction function.

  6 and 7, the light from the subject incident along the Y axis is deflected approximately 90 degrees by the optical path bending element disposed in the photographing lens unit 203, travels along the Z axis, and is photographed. The image is formed on the image sensor 4 arranged at the image plane position of the lens unit 203. The subject image formed on the image sensor 4 is captured by the image sensor 4 and displayed on a liquid crystal monitor disposed behind the camera body 201.

  The image pickup device 4 is connected to the FPC 5 (see FIG. 3 (a)), after being lined with a holding plate or the like (not shown), is fixed by screws or the like to the image plane position of the photographing lens unit 203 via the holding plate Yes.

  A uniaxial angular velocity sensor 6 and a uniaxial angular velocity sensor 7 are provided on two planes a and b that are substantially parallel to the optical axis (parallel to the Z axis) of the photographic lens unit 203 and are orthogonal to each other. Is fixed to the taking lens unit 3 via vibration absorbing members 8 and 8 (see FIG. 2). 7 is substantially the same as the cross section shown in FIG. 2 except for the cover member 2a. The plane a is a plane parallel to the major axis of the image sensor (for example, CCD or CMOS) 4, and the plane b is a plane parallel to the minor axis of the image sensor 4. Here, the uniaxial angular velocity sensor 6 detects the angular velocity around the X axis, the uniaxial angular velocity sensor 7 detects the angular velocity around the Y axis, and the two uniaxial angular velocity sensors 6, 7 detect the blur direction and blur amount of the photographing lens unit 3. It is the structure which can be done. If the uniaxial angular velocity sensors 6 and 7 are disposed on two planes (for example, plane a and plane b) orthogonal to each other of the photographic lens unit 203, the uniaxial angular velocity sensors 6 and 7 are located on the imaging element 4 side from the bent portion of the photographic lens unit 203. It is possible to arrange them at predetermined positions.

  Note that the arrangement of the uniaxial angular velocity sensors 6 and 7 on the photographing lens unit 203 and the operation and effect of the vibration absorption member are the same as those in the first embodiment, and a description thereof will be omitted.

  As shown in FIGS. 6 and 7, the imaging device 4 and the uniaxial angular velocity sensors 6 and 7 are connected and fixed on the same FPC 5, and the FPC 5 is bent along each surface of the photographing lens unit 3. The imaging element 4 and the uniaxial angular velocity sensors 6 and 7 can be disposed at each position of the photographing lens unit 203. Connections to the image sensor 4 and the uniaxial angular velocity sensors 6 and 7 are connected by respective wirings formed on the FPC 5, connected to a connector (not shown) of the camera body 201 via the terminal portion 13, and connected to the camera body 201. Control signals can be sent and received.

  As described above, in the second embodiment, in the bending type photographing lens unit 203, the imaging device 4 and the uniaxial angular velocity sensors 6 and 7 are arranged on the same FPC 5, and the FPC 5 is bent along each surface. The imaging element 4 and the uniaxial angular velocity sensors 6 and 7 are compactly arranged at predetermined positions of the photographing lens unit 203, and the photographing lens unit 203 is reduced in size and thickness.

  In the second embodiment, the FPC configuration shown in FIGS. 3 to 5 can be used, and detailed description thereof is omitted.

  Hereinafter, the image blur correction operation of the digital camera 200 shown in FIG. 6 will be briefly described. The case of using the FPC of FIG. 3A will be described as a representative, but the same applies to the case of using other FPCs.

  Digital camera 200, light from at not shown subject not shown shutter is opened photographing lens unit 203 and the photographing lens unit 203 presses the power button (not shown) is converged, the imaging element arranged on the image surface 4 is imaged. A subject image formed on the imaging device 4 is displayed on a liquid crystal monitor disposed behind the digital camera 200. The photographer determines the composition of the subject while looking at the liquid crystal monitor, and then presses the release button 204 to photograph the subject image with the image sensor 4 and records and saves it in a memory (not shown).

  When the release button 204 is depressed, it is detected through a uniaxial angular velocity sensor 6 and 7 control unit, which is built in shake of the photographing lens unit 203 to the camera body 201 is disposed in the photographing lens unit 203. The control unit is provided with the image stabilization lens unit 203 for correcting the image blur of the subject image on the image sensor 4 caused by the camera lens unit 203 blurring by the signals of the uniaxial angular velocity sensors 6 and 7. The amount of movement in the direction perpendicular to the optical axis of the lens (parallel to the Z axis) is calculated, and the image stabilization lens is driven via the image stabilization lens driving device to correct image blur on the image sensor 4. In this way, a subject image without image blur is picked up via the image pickup device 4 and stored in a memory built in the camera body 200. In addition to the method of moving the image stabilizing lens in the direction orthogonal to the optical axis, the method of moving the image sensor 4 in the direction orthogonal to the optical axis may be adopted for the image blur correction.

  Photographing lens unit 203 is composed of a zoom lens having an image blur correcting function having an angular velocity sensor 6 and 7 described above, from the front of the digital camera 200 light incident along the Y axis, in the zoom lens 203 Since the optical path deflecting optical element (not shown) (for example, a prism) is deflected approximately 90 degrees downward (direction along the Z-axis), the digital camera 200 can be thinned.

  Moreover, the digital camera 200, when the auxiliary light emitting section 205 emits auxiliary light when the object is dark, but also zooming in the telephoto end state (T) of the zoom lens 203 from the wide-angle end state (W) on the back Wide (W) -Tele (T) buttons and function buttons used for setting various conditions are arranged. Note that the digital camera 200 has an autofocus button and the like, and the photographing lens unit 203 is a zoom lens capable of autofocusing, but its operation and action are known and will not be described in detail.

  As described above, in the digital camera 200 according to the second embodiment, the angular velocity sensors 6 and 7 that detect the shake of the digital camera 200 caused by camera shake or the like are arranged in the bending type photographing lens unit 203. Therefore, it is possible to detect the shake applied to the photographic lens unit 203 more accurately as compared with the case where the angular velocity sensors 6 and 7 are disposed at a place other than the photographic lens unit 203.

  As described above, according to the photographic lens unit according to the above-described embodiment, it is possible to provide a photographic lens having an image blur correction function that achieves a reduction in size and thickness. In addition, a small and thin digital camera equipped with the photographing lens unit according to the above embodiment can be provided. Even a digital camera in which the photographing lens can rotate with respect to the camera body can make accurate image blur correction possible. In addition, since the imaging element and the angular velocity sensor can be arranged on the same FPC board, it is possible to provide a photographing lens unit that uses a member that has a simple board shape, is inexpensive, and is easy to assemble.

  Although the outer shape of the above-mentioned photographing lens unit is substantially rectangular, outer shape may be a circular or polygonal shape, it is sufficient orthogonal plane arranged two uniaxial angular velocity sensor from each other. The surface disposing the uniaxial angular velocity sensor, the description has been given of the short sides substantially parallel to the plane respectively to the long side of the image pickup device, not necessarily parallel, if you are inclined by a predetermined angle The blur component may be calculated by correcting the tilt angle when calculating the blur component. In addition, although the control unit for calculating the blur direction and the blur amount due to camera shake and the like and correcting the image blur on the image plane has been described in the above embodiment, it is provided in the camera body. You may arrange | position to a lens unit.

  The above-described embodiment is merely an example, and is not limited to the above-described configuration and shape, and can be appropriately modified and changed within the scope of the present invention.

1 is a schematic configuration diagram including a partial perspective view of a camera including an image blur correction photographing lens according to a first embodiment. It is the cross-sectional schematic along the AA line of FIG. The example of the flexible substrate (henceforth FPC) used for 1st Embodiment is shown. The example of the FPC board which has arranged an image sensor and a biaxial angular velocity sensor is shown. An example of an FPC board for an image sensor and two FPC boards for an angular velocity sensor is shown. The schematic diagram including the partial perspective view of the camera which concerns on 2nd Embodiment is shown. It is the schematic of the imaging lens unit of the camera which concerns on 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,201 Camera body 2 Shooting lens 3,203 Shooting lens unit 4 Image sensor 5, 15, 25, 35 FPC board 6, 7, 36, 37 Uniaxial angular velocity sensor 8 Vibration absorption member 10 Lens frame 11 Lens 12 Lens guide 13, 38 Terminal 16 Biaxial angular velocity sensor 28 Connector 100, 200 Digital camera 101 LCD monitor 102, 204 Release button

Claims (6)

  1. A lens that collects light from the subject,
    A photographic lens unit having an imaging element disposed on the image plane of the lens and capturing an image of the subject;
    An angular velocity sensor disposed on at least one plane substantially parallel to the optical axis of the photographing lens unit;
    An image blur correction photographic lens having an image blur correction function of detecting blur of the photographing lens unit with the angular velocity sensor and correcting image blur of the subject on the image plane.
  2.   The image blur correcting photographic lens according to claim 1, wherein the image sensor and the angular velocity sensor are disposed on at least one flexible substrate.
  3.   The image blur correcting photographic lens according to claim 1, wherein the angular velocity sensor is a biaxial angular velocity sensor.
  4.   The plane of the angular velocity sensor is disposed is two planes orthogonal to each other, the image blur according to claim 1 or 2, characterized in that each uniaxial angular velocity sensor in the two planes are arranged Correction shooting lens.
  5.   The image blur correcting photographic lens according to claim 1, wherein the angular velocity sensor is fixed to the photographic lens unit via a vibration absorbing member.
  6.   An optical apparatus comprising the image blur correction photographing lens according to any one of claims 1 to 5.
JP2006270910A 2006-10-02 2006-10-02 Image blurring correction photographic lens and optical apparatus having the same Withdrawn JP2008089995A (en)

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Application Number Priority Date Filing Date Title
JP2006270910A JP2008089995A (en) 2006-10-02 2006-10-02 Image blurring correction photographic lens and optical apparatus having the same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011247909A (en) * 2010-05-21 2011-12-08 Tdk Corp Lens drive device
JP2015215628A (en) * 2015-07-09 2015-12-03 ミツミ電機株式会社 Lens driving device, camera unit, and camera

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011247909A (en) * 2010-05-21 2011-12-08 Tdk Corp Lens drive device
US8682150B2 (en) 2010-05-21 2014-03-25 Tdk Corporation Lens driving apparatus
JP2015215628A (en) * 2015-07-09 2015-12-03 ミツミ電機株式会社 Lens driving device, camera unit, and camera

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