JP5218090B2 - Imaging device and adapter for imaging device - Google Patents

Description

  The present invention relates to an imaging apparatus such as a digital still camera, and an imaging apparatus adapter that connects a lens unit and a body unit of the imaging apparatus.

  Conventionally, imaging devices capable of exchanging lenses have become widespread. For example, in an interchangeable lens digital still camera, the perspective is emphasized using a wide-angle lens when photographing a vast landscape or the like, and the subject is emphasized by background blur using a bright lens with a small F value. The range of expression of the photographer can be widened by exchanging the lens according to the purpose. In such an interchangeable lens type imaging apparatus, only the lens part can be replaced, and the imaging element is generally fixed to the body part.

  In recent years, the speed of high functionality and high accuracy of digital still cameras and the like is fast, and the speed at which the image sensor that influences the image quality is not the latest is also fast. When the image sensor is mounted in a fixed state on the body part, it is difficult to replace only the image sensor. Therefore, a user who desires a new image sensor needs to replace the entire camera, which places a heavy burden on the user. It was. In addition, there is a drawback in that the inside is exposed when the lens is replaced, and the risk of image quality deterioration due to dust or the like adhering to the imaging element increases.

  On the other hand, when the image pickup device is provided on the lens side, the lens unit includes a lens unit that can be attached and detached without exposing the image pickup device, and a body unit that is a main body including an operation member and an image data display unit. A removable imaging device has been proposed. By adopting such a structure, there is no optical restriction between the lens unit and the body unit, and the degree of freedom of the shape that the imaging device can take is improved. At present, the shape of a general imaging device is followed.

  Conventional imaging devices can be used for low-angle shooting that looks up at a short subject, or high-angle shooting that avoids obstacles such as shadows and heights of people when crowded. It is difficult to check the shooting screen when shooting. In addition, when the image pickup apparatus is set to a vertical position in order to shoot a subject to be photographed vertically, it is difficult to stabilize the photographing posture because the grip portion of the main body is held up or down. As described above, there is a problem that the photographer is forced to have a cramped posture or an unreasonable grip in order to photograph at a desired angle or a desired angle of the image sensor.

  For this reason, it may be possible to make the screen part of the body unit movable in order to solve the problem that it is difficult to confirm the shooting screen. There exists a problem that the intensity | strength of a part is also impaired.

  On the other hand, an easy-to-use imaging device (video camera) that can freely perform panning (operation for scanning the shooting direction of the camera in the horizontal direction) and tilting (operation for scanning the shooting direction of the camera in the vertical direction) has been proposed. (See Patent Document 1). According to this technology, the stability of panning photography and tilting photography can be improved while realizing miniaturization of the apparatus, and it is possible to easily cope with various photography modes.

  However, if you want to rotate the image sensor around the optical axis of the optical system while maintaining a constant inclination of the optical axis of the optical system, you need to rotate the body unit. The holding method of the image pickup apparatus is limited.

  According to the present invention, in an imaging device in which a lens unit and a body unit can be attached and detached, the optical axis can be tilted without moving the body unit, and the imaging element can be rotated around the optical axis together with the lens unit. In addition, an object of the present invention is to provide an imaging apparatus that does not limit the posture or the way a photographer holds in shooting at various angles.

The present invention provided to solve the above problems is as follows.
[1] An adapter for an image pickup apparatus comprising an optical system and a lens unit having an image pickup device provided at a fixed angle with respect to the optical system, and a body unit that detachably holds the lens unit, the lens It is detachably mounted between the unit and the body unit, and the optical axis of the optical system and the imaging element form an inclination with respect to the body unit, and the imaging element is rotatable with respect to the optical axis. An adapter for an image pickup apparatus, characterized in that a movable range is given to the lens unit.
[2] A joint portion between the lens unit and a body unit, wherein the joint portion with the lens unit and the joint portion with the body unit are connected via a rotation shaft. The adapter for an imaging device according to [1].
[3] The method includes: a joint portion between the lens unit and a body unit; and a joint portion between the joint portion with the lens unit and the joint portion with the body unit is a ball joint. [1] The adapter for an imaging device according to [1].
[4] The imaging device adapter according to any one of [1] to [3], further including a tripod hole for attaching a tripod.
[5] A lens unit having an optical system and an imaging device provided at a fixed angle with respect to the optical system, a body unit that detachably holds the lens unit, and any one of [1] to [4] The imaging apparatus adapter according to claim 1 is provided, the optical axis of the optical system and the imaging element are inclined with respect to the body unit, and the imaging element is rotatable with respect to the optical axis. An image pickup apparatus, wherein the lens unit has a movable range.

As an effect of the present invention, according to the first aspect of the present invention, there is provided a lens unit having an optical system and an image sensor provided at a constant angle with respect to the optical system, and a body unit that detachably holds the lens unit. An adapter for an imaging apparatus, wherein the adapter is detachably mounted between the lens unit and the body unit, and the optical axis of the optical system and the imaging element form an inclination with respect to the body unit. Since the imaging device adapter gives a movable range to the lens unit so that the imaging element can be rotated with respect to the optical axis, by applying this adapter, postures and imaging can be performed in shooting at various angles. It is possible to provide an imaging device that does not limit the way a person holds.
According to invention of Claim 2, it consists of the junction part with a lens unit, and the junction part of a body unit, and the junction part with the said lens unit and the junction part with the said body unit are connected via a rotating shaft. Thus, the imaging apparatus adapter can be tilted in the vertical and horizontal directions around the rotation axis. By using this imaging adapter, it is possible to provide an imaging apparatus with a high degree of freedom in shooting posture.
According to invention of Claim 3, it consists of the junction part with a lens unit, and the junction part of a body unit, and the connection part of the junction part with the said lens unit and the junction part with the said body unit is a ball joint. Since the adapter for the imaging device is used, the imaging device has a 360-degree rotatable range. Therefore, by using this imaging adapter, it is possible to provide an imaging device with a higher degree of freedom in the shooting posture.
According to the invention of claim 4, since the adapter for an imaging device is provided with a tripod hole for attaching a tripod, photographing can be freely selected even when the imaging device to be mounted cannot be moved, It is possible to shoot without shifting the subject from the center of the field of view.
According to the invention of claim 5, a lens unit having an optical system and an imaging device provided at a fixed angle with respect to the optical system, a body unit that detachably holds the lens unit, and the imaging adapter, The lens unit has a movable range so that the optical axis of the optical system and the imaging element form an inclination with respect to the body unit, and the imaging element is rotatable with respect to the optical axis. Since it has an imaging device, the optical axis can be tilted without moving the body unit, and the image sensor can be rotated around the optical axis together with the lens unit. There is no restriction on how the photographer can hold.

It is an example of the conventional imaging device which can attach or detach the lens unit containing an image sensor, and a body unit, (A) is a front view, (B) is a back surface, (C) is a projection figure which shows the state which isolate | separated. 1 is an overview diagram illustrating a configuration in an embodiment of an imaging apparatus according to the present invention. 1 is a top view, a side view, a bottom view, a front view, and a rear view showing a configuration in an embodiment of an adapter for an imaging device according to the present invention. It is a front view explaining the movable part of the adapter for imaging devices which concerns on this invention. It is a rear view explaining the movable part of the adapter for imaging devices which concerns on this invention. It is a side view explaining the movable part of the adapter for imaging devices which concerns on this invention. It is a figure which shows the example (a) of the attitude | position of the imaging device which concerns on this invention. It is a figure which shows the example (b) of the attitude | position of the imaging device which concerns on this invention. It is a figure which shows the example (c) of the attitude | position of the imaging device which concerns on this invention. It is a figure which shows the example (d) of the attitude | position of the imaging device which concerns on this invention. It is a figure which shows the example (e) of the attitude | position of the imaging device which concerns on this invention. It is a figure which shows the example (f) of the attitude | position of the imaging device which concerns on this invention. It is a figure which shows the example (g) of the attitude | position of the imaging device which concerns on this invention. It is a figure which shows the example (h) of the attitude | position of the imaging device which concerns on this invention. It is a figure which shows the example (i) of the attitude | position of the imaging device which concerns on this invention. It is a figure explaining the example of the tilt operation | movement of the imaging device which concerns on this invention. It is a figure explaining the example of the tilt operation | movement of the imaging device which concerns on this invention. It is a figure which shows the connection part of the front part and rear part in other embodiment of the adapter for imaging devices which concerns on this invention, and a joining state. It is the top view, side view, bottom view, front view, and back view which show the structure in other embodiment of the adapter for imaging devices which concerns on this invention. It is a figure explaining the rotation operation in other embodiments of the adapter for imaging devices concerning the present invention. It is a figure explaining the example of the tilt operation in other embodiment of the adapter for imaging devices which concerns on this invention.

  Hereinafter, an imaging device and an imaging device adapter according to the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below, and other embodiments, additions, modifications, deletions, and the like can be changed within a range that can be conceived by those skilled in the art, and any aspect is possible. As long as the functions and effects of the present invention are exhibited, the scope of the present invention is included.

  FIG. 1 shows an example of a conventional interchangeable lens digital camera which is a premise of the present invention. In addition, this figure does not limit the shape of a lens unit, a body unit, and the connector which connects these. FIG. 1A is a projection view drawn from a viewpoint such that the front of the camera can be seen, and FIG. 1B is a projection view drawn from a viewpoint such that the back of the camera can be seen. FIG. 1C is a diagram when the lens unit 20 and the body unit 10 are separated. As shown in FIG. 1C, the lens unit 20 includes an image pickup device 21, which is fixed without any optical restrictions on the connection between the lens unit 20 and the body unit 10, and performs electrical communication. It is shown that. Further, the detailed description of the internal configuration and other members is not related to the preconditions of the present invention, and is therefore omitted.

  An imaging apparatus of the present invention includes at least an optical system and a lens unit having an imaging element provided at a fixed angle with respect to the optical system, a body unit that detachably holds the lens unit, and an imaging apparatus adapter. And the lens unit has a movable range so that the optical axis of the optical system and the imaging element form an inclination with respect to the body unit, and the imaging element is rotatable with respect to the optical axis.

[First Embodiment]
In FIG. 2, as an overview of the imaging apparatus 100 of the present invention, the lens unit 20, the imaging apparatus adapter 30 (hereinafter simply referred to as “adapter 30”), the body unit 10, and their connections Indicates. The adapter 30 is connected to the lens-side connector 21 of the lens unit at the connector connection portion 32 of the lens unit, and is connected to the connector connection portion 11 of the body unit at the connector 31.

  In FIG. 3, the figure seen from the direction of the front of the adapter of this invention, a back surface, an upper surface, a lower surface, and a side surface is shown. The adapter 30 includes a front part (lens unit joint part) 33 connected to the lens unit and a rear part (body unit joint part) 34 connected to the body unit, which are connected by a rotating shaft 35 penetrating the side surface. Yes. A tripod hole 36 is provided on the lower surface of the adapter.

  When the adapter 30 includes a tripod hole 36 and the tripod hole has a movable region in accordance with the movement of the adapter, the tripod to be used is of a type in which the posture of the imaging device to be mounted cannot be moved vertically and horizontally. Also, it is possible to freely select landscape shooting and portrait shooting. On the other hand, even when using a tripod that can move the orientation of the imaging device to be mounted vertically and horizontally, the tripod hole on the adapter of the present invention has a movable range that can rotate around the optical axis of the lens. Is advantageous in that the subject does not deviate from the center of the field of view.

4 to 6 are explanatory views of the movable part of the adapter.
As shown in FIG. 4, the adapter front part rotates 90 degrees left and right with respect to the normal position, and 180 degrees around the center of the circular lens part connection surface provided with the concave lens unit connection part. In addition, in order to show clearly that it is rotating, the mark of the normal position, the L position, and the R position is illustrated, but the mark may not be present.

  As shown in FIG. 5, the rear part of the adapter rotates by 90 degrees to the right and left, and 180 degrees, with the center of the circular body part connection surface provided with the convex body unit connection part as an axis. In addition, in order to show clearly that it is rotating, the mark of the normal position, the L position, and the R position is illustrated, but the mark may not be present.

  Further, as shown in FIG. 6, the adapter front part 33 and the adapter rear part 34 move in the vertical direction as shown in FIGS. This operation is hereinafter referred to as “tilt operation”.

Next, the posture of the entire imaging apparatus of the present invention provided with the adapter of the present invention will be described.
As shown in FIGS. 4 and 5, the rotational positions of the adapter front part (joint part with the lens unit) and the adapter rear part (joint part with the body unit) are 90 degrees to the right and left, respectively, for a total of 180 degrees. It is assumed that it is rotated and held at an arbitrary position.
Here, when the rotation positions of the lens unit connection surface and the body unit connection surface are held at any one of the three points of the normal position, the L position, and the R position, depending on the combination, (1) the lens unit and the body unit (2) Whether the direction of the tilt operation is the vertical direction or the horizontal direction with respect to the body unit, (3) Table 1 shows the orientation of the tripod hole position with respect to the body unit. Furthermore, each posture is illustrated in FIGS.

  The posture (b) shown in FIG. 8, the posture (d) shown in FIG. 10, and the posture (g) shown in FIG. 13 are the upward direction of the lens unit (normal position mark) and the upward direction of the body unit (normal position mark). ), And the positional relationship between the lens unit and the body unit is the same as when no adapter is interposed. However, by using the adapter of the present invention, in the posture (b), the horizontal tilt operation shown in FIG. 16 is possible, and in the postures (d) and (g), the horizontal tilt operation shown in FIG. It becomes possible. Further, in the postures (d) and (g), the directions of the tripod holes on the adapter are respectively located on the left side and the right side with respect to the body unit.

From this, posture (b) is mainly used when shooting a subject in landscape orientation (taking landscape photos), such as low-angle photography where the camera is placed at a position lower than the photographer's eyes, It is suitable for high-angle shooting in which a camera is placed at a position higher than the eyes.
The posture (d) and posture (g) are mainly suitable for shooting a subject in portrait orientation with a camera attached to a tripod (taking a portrait photo) and checking the image on a portrait screen. Yes. Note that the photographer can appropriately determine and select whether the grip portion of the body unit is disposed above or below.

  The posture (a) shown in FIG. 7, the posture (c) shown in FIG. 9, the posture (e) shown in FIG. 11, and the posture (h) shown in FIG. The upward direction of the unit (normal position mark) is shifted by 90 degrees about the lens optical axis. These postures are suitable for taking a vertically long picture with the same body grip as that of the conventional camera as shown in FIG.

  The posture (e) shown in FIG. 11 and the posture (h) shown in FIG. 14 can be tilted in the vertical direction with respect to the body unit, so when taking a vertically long picture, the position is lower than the eyes of the photographer. It is suitable for low-angle shooting where a camera is placed at a high angle and high-angle shooting where a camera is placed at a position higher than the photographer's eyes. In any posture, when taking a vertically long picture, the photographer can appropriately determine and select which of the left and right surfaces of the lens should be up.

  In the posture (f) shown in FIG. 12 and the posture (i) shown in FIG. 15, the upward direction of the lens unit (normal position mark) and the upward direction of the body unit (normal position mark) are shifted by 180 degrees about the lens optical axis. It has become a posture. Since the upper and lower sides are reversed, there are few suitable examples of shooting modes. For example, shooting that is intended to be turned upside down can be mentioned.

  As in the example of posture (f), using the imaging device of the present invention may expand the expression method of the photographer because there are suitable shooting modes as well as general shooting modes. In addition to the shooting examples given in the above postures (a) to (i), a free shooting posture can be taken depending on the photographer's idea.

[Embodiment 2]
18 to 21 show an example of the adapter 30 in which the connecting portion between the adapter front portion 33 and the adapter rear portion 34 is a spherical ball joint shape.
FIG. 18 shows projection views of the adapter front portion 33 and the adapter rear portion 34 in the upper stage and the adapter 30 in a state in which these are connected in the lower stage. The connecting portion is connected in a pair of concavo-convex shapes so as to be rotatable, and is provided with a hole through which the flexible printed board is passed. 18 shows an example in which the connecting portion of the adapter rear portion 34 is convex (spherical) and the adapter front portion 33 is concave, but the combination of the concave and convex portions may be reversed.
FIG. 19 shows a view of the adapter 30 having a ball joint shape as seen from the front, back, top, bottom and side directions.

20 and 21 are explanatory views of the movable part of the adapter 30. FIG.
FIG. 20 is based on the position where the upper surfaces of the front part 33 and the rear part 34 of the adapter (the upper part is indicated by Δ in the figure) coincides with each other. Indicates that it can be rotated in degrees. In this embodiment, an example in which the left and right are rotated 90 degrees is shown, but since the connecting portion is spherical, it may be rotated 180 degrees to the left and right, or 360 degrees as a whole.
FIG. 21 shows a view from the top and a view from the side, since the connecting portion is spherical. It is shown that the adapter front part 33 and the adapter rear part 34 can be tilted not only in the vertical and horizontal directions but also in all directions. As described above, by adopting a ball joint structure as shown in FIG. 18 at the connecting portion of the adapter 30, it is possible to take a picture with a posture substantially equivalent to that of the first embodiment.

  As described above, the imaging apparatus of the present invention can be divided into a lens unit including at least an imaging element in addition to an optical system (including a focus adjustment mechanism), and a body unit including at least an operation member and an image display unit. There is no optical restriction on the connection of the body unit, and in the interchangeable-lens digital still camera with a connector for electrical communication, the lens unit front axis and the body unit front axis that are normally coincident with each other Between the lens unit and the body unit, a mechanism that can change the angle in the vertical and horizontal directions, a mechanism that can shift the relationship between the lens unit upper part and the upper part of the body unit 90 degrees to the left and right, respectively. It can relay the electrical signal from the lens unit to the body unit. By providing an adapter may be provided in the imaging of a variety of angles, the imaging device is not to limit the manner of holding the posture or the photographer.

DESCRIPTION OF SYMBOLS 10 Body unit 11 Connector connection part 20 Lens unit 21 Connector 22 Image pick-up element 30 Adapter (Lens unit-body unit connection apparatus)
31 Connector 32 Connector connection 33 Adapter front (lens unit joint)
34 Adapter rear (body unit joint)
35 Rotating shaft 36 Tripod hole 100 Imaging device (digital still camera)

JP 2007-110314 A

Claims (5)

  An adapter for an imaging apparatus comprising an optical system and a lens unit having an imaging device provided at a fixed angle with respect to the optical system, and a body unit that detachably holds the lens unit, the lens unit and the An optical axis of the optical system and the imaging element are inclined with respect to the body unit, and the imaging element is rotatable with respect to the optical axis. An adapter for an image pickup apparatus, wherein a movable range is given to the lens unit.   The joint part between the lens unit and the joint part between the body unit, and the joint part between the lens unit and the joint part between the body unit are connected via a rotating shaft. The adapter for an imaging device according to 1.   2. The connecting portion between the joint portion between the lens unit and the joint portion between the body unit and the joint portion between the lens unit and the body unit is a ball joint. The adapter for an imaging device as described.   The adapter for an imaging device according to claim 1, further comprising a tripod hole for attaching a tripod.   5. A lens unit having an optical system and an imaging device provided at a fixed angle with respect to the optical system, a body unit that detachably holds the lens unit, and the imaging device according to claim 1. An optical axis of the optical system and the imaging element with respect to the body unit, and the lens unit is movable so that the imaging element can rotate with respect to the optical axis. An imaging device having a region.

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