JP2005181880A - Adapter holder and adapter set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adapter holder and an adapter set which are highly versatile to allow a common adapter for stereoscopic images to be attached to stereoscopic image photographing devices and stereoscopic image projection devices having various structures and shapes. <P>SOLUTION: An adapter holder for coupling an optical adapter is attached to each of a photographing device for photographing a stereoscopic image and a projection device for displaying it. Common specifications are given to an adapter holding part for holding the optical adapter, in the adapter holder attached to the photographing device and the adapter holder attached to the projection device, so that an identical optical adapter can be easily coupled to the photographing device and the projection device. Since the common optical adapter can be attached to the adapter holder for display corresponding to the projection device and the adapter holder for photographing corresponding to the photographic device, the versatility of the optical adapter is improved to make it possible to easily design the optical adapter. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an adapter holding device and an adapter set for connecting a photographing device or an image projecting device and a stereoscopic image adapter, and in particular, a stereoscopic image photographing device or a stereoscopic image photographing device for photographing a stereoscopic image having binocular parallax. The present invention relates to an adapter holding device and an adapter set for connecting a stereoscopic image projector and a stereoscopic image adapter.

  In recent years, visual information transmission has played an important role, and various techniques related to the display of three-dimensional images have been proposed as visual information closer to reality than the display of planar images. In order for a viewer to recognize a stereoscopic image, it is necessary to cause the viewer's left and right eyes to recognize images having binocular parallax taken from two viewpoints.

  As a stereoscopic image photographing device for photographing two images having binocular parallax to be recognized by the viewer's left and right eyes, two imaging devices are prepared and two images are photographed from different viewpoint positions. In addition, there has been proposed one that captures an image from two viewpoints by changing a light path using a reflection mirror (see, for example, Patent Document 1). At this time, when shooting and recording two images having binocular parallax as parallax images, which is the right-eye image and which is the left-eye image is recorded in association with the parallax image as positional relationship information. .

  In order to allow a viewer to recognize a parallax image as a stereoscopic image, for example, left and right images having binocular parallax are alternately displayed for each pixel column of a flat projection device such as a liquid crystal projection device, and arranged on the screen. The one that determines the traveling direction of light is proposed. In addition, the polarization direction of two types of images having binocular parallax is projected orthogonally on a polarizing screen that reflects light while maintaining the polarization direction, so that the viewer can polarization direction corresponding to the left and right images. A stereoscopic image projection apparatus that is equipped with polarized glasses is also proposed.

  In any three-dimensional image projector, the right-eye image is displayed so as to be recognized only by the viewer's right eye, and the left-eye image is displayed only by the viewer's left eye, so that the three-dimensional image is correctly displayed. Can be displayed to allow the viewer to recognize the stereoscopic image. Therefore, by sharing the stereoscopic image adapter used when shooting an image having binocular parallax also when displaying a stereoscopic image, a common stereoscopic image adapter can be used to capture and display a stereoscopic image having binocular parallax. A technique to be realized has also been proposed (see, for example, Patent Document 2).

JP-A-11-146424 JP-A-8-149518

  However, in the techniques described in Patent Literature 1 and Patent Literature 2, it is necessary to design the shape of the stereoscopic image adapter according to the structure and shape of the stereoscopic image capturing device and the projection device. There has been a problem in that the adapter for stereoscopic images suitable for the image projection apparatus is limited. There are multiple types of 3D image capture devices and 3D image projection devices that are actually provided to consumers, and there may be multiple types depending on the manufacturer and manufacturing type. When designing a 3D image adapter that supports individual devices Requires a lot of effort to design the device and increases the manufacturing cost.

  Accordingly, the present invention provides a highly versatile adapter holding device and adapter set capable of attaching a common stereoscopic image adapter to stereoscopic image capturing devices and stereoscopic image projection devices of various structures and shapes. Objective.

  In order to solve the above-described problems, an adapter holding device of the present invention includes a photographing device holding unit that detachably mounts a photographing device having a photographing optical member, and a three-dimensional structure that derives a left-eye image and a right-eye image through different optical paths. An adapter holding part for detachably attaching an image adapter to the position of the photographing optical member; and a main body part on which the photographing apparatus holding part and the adapter holding part are formed.

  By attaching the adapter holding device to the photographing device and attaching the stereoscopic image adapter to the adapter holding device, the stereoscopic image adapter and the photographing device can be simply connected. When connecting a single 3D image adapter to multiple types of shooting devices, design the shape of the shooting adapter holding device and the position of the adapter holding unit according to the shape of the shooting device and the arrangement of the shooting unit, By making the shape of the adapter holding portion common, it is possible to give the stereoscopic image adapter versatility.

  At this time, the imaging device holding unit is mounted on the bottom surface of the imaging device and the adapter holding unit is disposed on the front surface of the imaging device, or the imaging device holding unit is fastened with a tripod mounting unit of the imaging device with a screw, The adapter holding device can be attached to the photographing apparatus with a simple configuration without forming a special member in the photographing apparatus. In addition, since the adapter holding device has an opening through which the photographing unit of the photographing device is inserted, even if the adapter holding device is attached to the photographing device, the operation of the photographing unit is not limited by the adapter holding unit. In addition, it is possible to take an image by performing the same operation as that of a normal photographing apparatus.

  Furthermore, since the adapter holding device is provided with a visual field limiting unit that covers a part of the finder of the photographing device and limits the visual field range, the viewing angle of the photographer can be determined by the visual field limiting unit. The photographing direction when the adapter for stereoscopic images is attached and the visual field direction by the visual field limiting unit can be made to coincide with each other so that the photographer can visually recognize only the direction that can be actually photographed. The visual field range limited by the visual field limiting unit is an incident direction of light that enters the stereoscopic image adapter and reaches the photographing optical member. The stereoscopic image adapter includes a pair of mirrors arranged opposite to each other, and reflects part of the light incident on the stereoscopic image adapter by the pair of mirrors to reach the photographing optical member. It is good.

  In order to solve the above problems, the adapter holding device of the present invention derives the projection device holding portion to which the projection device having the projection optical member is detachably attached, and the left-eye image and the right-eye image through different optical paths. An adapter holding part for detachably arranging a stereoscopic image adapter at the position of the projection optical member, and a main body part on which the projection apparatus holding part and the adapter holding part are formed, To do.

  By attaching the adapter holding device to the image projecting device and attaching the stereo image adapter to the adapter holding device, the stereo image adapter and the image projecting device can be easily connected. When connecting a single 3D image adapter to multiple types of image projection devices, the shape of the adapter holding device and the position of the adapter holding unit are designed according to the shape of the image projection device and the arrangement of the image projection unit. By making the shape of the adapter holding part common, it is possible to give the stereoscopic image adapter versatility.

  The adapter holding device includes a polarizing member that is formed on the optical path of the image projected by the projection optical member and that makes the polarization directions of the left-eye image and the right-eye image projected by the projection device different from each other. The polarization direction of the projected image is different, and the viewer can view the stereoscopic image by wearing polarized glasses. Since it is not necessary to form a polarizing member in the stereoscopic image adapter, it is possible to divert the stereoscopic image adapter when taking a stereoscopic image. Further, a part of the polarizing member may be formed so as to protrude to the side on which the stereoscopic image adapter is mounted, and may be disposed on the optical path for projecting the right-eye image or the left-eye image inside the stereoscopic image adapter. The stereoscopic image adapter includes a first mirror that reflects either the right-eye image or the left-eye image projected by the projection device, and a second mirror that reflects the light reflected by the first mirror. And a part of the polarizing member may be disposed between the first mirror and the second mirror.

  In order to solve the above-described problem, the adapter set of the present invention includes a stereoscopic image adapter unit for deriving a left-eye image and a right-eye image by different optical paths, and a detachable attachment of the stereoscopic image adapter unit. A first holding unit for connecting the stereoscopic image adapter unit to a photographing device, and a second holding unit for detachably mounting the stereoscopic image adapter unit, And a second adapter holding means for connecting the stereoscopic image adapter unit to the projection device.

  By designing the shooting adapter holding device and the display adapter holding device so as to correspond to shooting devices and projection devices of various shapes, it is not necessary to design a stereoscopic image adapter for each shooting device and projection device. Therefore, it is easy to provide a highly versatile stereoscopic image adapter.

  Further, the first holding part and the second holding part have substantially the same shape, so that the adapter holding part of the photographing adapter holding apparatus and the adapter holding part of the display adapter holding apparatus have a common specification. Thus, one stereoscopic image adapter can be attached to the photographing device and the projection device, and a stereoscopic image can be photographed and displayed.

  By adopting a common specification for the adapter holding part of the photographing adapter holding device and the adapter holding part of the display adapter holding device, a single three-dimensional image adapter is attached to the photographing device and the projection device, and a three-dimensional image is taken. Can be displayed. By designing the shooting adapter holding device and the display adapter holding device so as to correspond to shooting devices and projection devices of various shapes, it is not necessary to design a stereoscopic image adapter for each shooting device and projection device. Therefore, it is easy to provide a highly versatile stereoscopic image adapter.

  Hereinafter, an adapter holding device and an adapter set to which the present invention is applied will be described in detail with reference to the drawings. In addition, this invention is not limited to the following description, In the range which does not deviate from the summary of this invention, it can change suitably. In the following description, a stereoscopic image adapter using two reflection mirrors will be described as an example, but the number and shape of the reflection mirrors may be arbitrary. In addition, it is not an essential problem to invert the right and left direction in the description with reference to the drawings. It is also possible to take and display a stereoscopic image by switching the left and right described below. The images used in the following description include not only still images but also moving images.

  An adapter set according to the present invention includes a shooting adapter holding device mounted on a stereoscopic image shooting device for shooting a stereoscopic image, a display adapter holding device mounted on a stereoscopic image projection device for projecting a stereoscopic image, and a shooting adapter. It is composed of a combination of stereoscopic image adapters that can be attached to both the holding device and the display adapter holding device.

  FIG. 1 is an external perspective view showing the structure of a photographing adapter holding device that constitutes the adapter set of the present invention and is attached to a stereoscopic image photographing device, FIG. 2 (a) is a bottom view, and FIG. Is a front view, and FIG. 2C is a side view. The photographing adapter holding device 10 includes a photographing device holding portion 12 for attaching / detaching to / from the photographing device to a base plate portion 11 which is a base portion on which each member is formed, and an adapter for attaching / detaching a stereoscopic image adapter. A holding portion 13 and a pedestal portion 14 for erecting the photographing adapter holding device 10 are formed. The base plate portion 11 is formed with a holding auxiliary portion 16 for assisting holding of the photographing apparatus. A part of the adapter holding portion 13 is extended to form a flat shielding portion 17. A field limiting portion 18 is opened.

  The base plate portion 11 is a rectangular member formed of a material such as plastic or metal, for example, and is a base portion for integrally forming the imaging device holding portion 12, the adapter holding portion 13 and the pedestal portion 14 together. It is the member which becomes. Here, the shape of the base plate portion 11 is assumed to be a flat plate shape, but the shape may be appropriately designed according to the shape of a projection device to be mounted or a stereoscopic image adapter. The photographing device holding portion 12 is a fastening member configured by a screw hole formed in the base plate portion 11 and a fastening screw, and the fastening hole and screw hole formed at a corresponding position of the photographing device are formed by a fastening screw. After fastening, the photographing adapter holding device 10 is mounted and held in the photographing device.

  The adapter holding portion 13 is a ring-shaped member formed in a vertical direction with respect to the base plate portion 11, and four notches 15 for attaching a stereoscopic image adapter are arranged at equal intervals inside the ring. The place is formed. The position where the adapter holding unit 13 is formed is a position corresponding to the image photographing unit of the photographing device, and light incident on the photographing device as a three-dimensional image passes through the ring of the adapter holding unit 13 for three-dimensional images. Reach the adapter. The adapter holding unit 13 is not limited to an annular shape as long as the adapter for stereoscopic images can be attached and held, and the shape can be appropriately changed according to the shape of the image projection unit of the projection apparatus. Further, it is not necessary to form four notches 15 at equal intervals, and an arbitrary number of notches 15 may be formed at arbitrary positions.

  The pedestal portion 14 is a plurality of projecting members formed to protrude to the bottom surface side of the base plate portion 11, and the height of the plurality of projecting members is substantially the same, so that the photographic adapter with the pedestal portion 14 at the bottom is provided. The holding device 10 can be installed upright on a plane. At this time, since the fastening screw of the photographing device holding part 12 is arranged on the bottom surface side of the base plate part 11, the height of the base part 14 is made higher than the height at which the fastening screw protrudes from the base plate part 11. It needs to be large. Alternatively, the height of the fastening screw and the height of the pedestal portion 14 may be made substantially the same so that the fastening screw can be part of the pedestal portion 14 to improve the stability of the photographing adapter holding device 10.

  FIG. 3 is an external perspective view showing a state in which the photographing apparatus is mounted on the photographing adapter holding apparatus 10 shown in FIGS. 1 and 2. The photographing apparatus 100 is arranged on the base plate portion 11 of the photographing adapter holding apparatus 10 and is fastened with a tripod screw hole formed in the photographing apparatus 100 with a fastening screw of the photographing apparatus holding section 12 to hold the photographing adapter. The apparatus 10 is attached to the photographing apparatus 100. At this time, since the holding auxiliary unit 16 sandwiches the housing 101 of the photographing apparatus 100, it can be mounted so that the positional relationship between the photographing adapter holding apparatus 10 and the photographing apparatus 100 does not shift. Since the tripod screw hole formed in the photographing device 100 is generally used and formed according to a unified standard, the photographing device holding portion 12 is formed at a position corresponding to the tripod screw hole and fastened. By using a standard screw suitable for a tripod screw hole as a screw for use, the photographing adapter holding device 10 can be attached to the photographing device 100 with a simple configuration without forming a special member in the photographing device 100. It becomes.

  The image capturing apparatus 100 is an apparatus that captures an image. For example, an electrical circuit and optical system parts necessary for image capturing are accommodated in a housing 101, and a finder 102, an image capturing unit 103, and a flash 104 are provided on the front surface of the housing 101. And a shutter 105 is attached to the top of the housing 101. In the same way as a commonly used photographing apparatus, the photographing apparatus 100 is for photographing a scene image received by the photographing unit 103 by selecting a scene from the viewfinder 102 by the photographer and pressing the shutter 105, and compensates for the lack of light quantity. Therefore, it is possible to perform photographing by irradiating the subject with light using the flash 104.

  In the state where the photographing adapter holding device 10 is mounted on the photographing device 100, as shown in FIG. 3, the shielding portion 17 is formed up to a position covering the viewfinder 102, and only the region where the field-of-view limiting portion 18 is opened. This area is visible from the viewfinder 102. Since the viewing angle of the photographer can be determined by the shielding unit 17 and the field limiting unit 18, the imaging direction when the stereoscopic image adapter is attached to the imaging adapter holding device 10 and the field direction by the field limiting unit 18 are determined. By matching, it is possible for the photographer to visually recognize only the direction in which the image can be actually taken. Moreover, since the shielding part 17 is not formed to the position which covers the flash 104, the light irradiation using the flash 104 can be performed in the same manner as using the normal photographing apparatus 100.

  In addition, since the adapter holding unit 13 is formed as an annular member that matches the shape of the photographing unit 103, the photographing adapter holding device 10 is mounted on the photographing device 100, and zooming up is performed to perform photographing. When the part 103 protrudes, the photographing part 103 is inserted through the annular opening of the adapter holding part 13. Therefore, even if the imaging adapter holding device 10 is attached to the imaging device 100, the operation of the imaging unit 103 is not limited by the adapter holding unit 13, and an operation similar to that of the normal imaging device 100 is performed. It is possible to take a picture.

  FIG. 4 is an external perspective view showing a state in which the photographing apparatus 100 and the stereoscopic image adapter 200 are attached to the photographing adapter holding apparatus 10. As shown in FIG. 3, the photographing adapter holding device 10 is attached to the photographing device 100, and the stereoscopic image adapter 200 is further attached to the adapter holding portion 13, whereby the photographing adapter holding device 10 causes the photographing device 100 to be attached. And the stereoscopic image adapter 200 are held and connected. Since the stereoscopic image adapter 200 is attached to the adapter holding unit 13, the stereoscopic image adapter 200 is disposed on the front surface of the imaging unit 103 of the imaging device 100 through the annular opening of the adapter holding unit 13. Therefore, it is possible to shoot a stereoscopic image in which two images having binocular parallax are arranged in parallel, as described later, by making light incident on the stereoscopic image adapter 200 from the outside enter the imaging unit 103. It becomes.

  The stereoscopic image adapter 200 is an apparatus in which two reflecting mirrors 202 and a reflecting mirror 203 are arranged inside a casing 201 that is a hollow tubular member. A mirror adjustment unit 204 that rotates in conjunction with the reflection mirror 202 is attached to the top of the housing 201, and the direction of the reflection surface of the reflection mirror 202 can be changed by rotating the mirror adjustment unit 204. It has become. Further, the side of the housing 201 connected to the adapter holding portion 13 has a cylindrical shape having a diameter substantially the same as that of the adapter holding portion 13, and a protrusion is formed at a position corresponding to the notch portion 15. The stereoscopic image adapter 200 is attached to the photographing adapter holding device 10 by rotating the housing 201 by a minute amount after fitting the protrusion to the notch 15.

  By attaching the imaging adapter holding device 10 to the imaging device 100 and attaching the stereoscopic image adapter 200 to the imaging adapter holding device 10, the stereoscopic image adapter 200 and the imaging device 100 can be easily connected. When a single stereoscopic image adapter 200 is connected to a plurality of types of imaging devices 100, the shape of the imaging adapter holding device 10 and the adapter holding unit 13 are matched with the shape of the imaging device 100 and the arrangement of the imaging unit 103. By designing the position of the adapter and making the shape of the adapter holding part 13 common, it is possible to make the stereoscopic image adapter 200 versatile. In addition, since the cylindrical portion of the housing 201 has substantially the same diameter as the annular opening of the adapter holding portion 13, the inside of the housing 201 can be used even when the photographing unit 103 protrudes due to the operation of the photographing device 100. It is possible to take an image by performing the same operation as that of the normal photographing apparatus 100 without hindering the operation of the photographing unit 103 in FIG.

  FIG. 5 is a schematic cross-sectional view showing the internal structure of the stereoscopic image adapter 200 shown in FIG. 1 and the path of light reaching the imaging apparatus 100. In the stereoscopic image adapter 200, an example is shown in which two reflecting mirrors 202 and 203 are arranged to face each other, but as two images having binocular parallax, a left eye image 108L to be recognized by the left eye and a right eye. As long as the right-eye image 108 </ b> R to be recognized can be incident on the imaging apparatus 100, the number and shape of the reflecting mirrors are not limited.

  Inside the stereoscopic image adapter 200, the reflection mirror 202 and the reflection mirror 203 are arranged to face each other as two reflection mirrors. The reflection mirror 202 is a trapezoidal flat reflection mirror, and is arranged so that the reflection surface faces in an oblique direction with respect to the outside direction of the stereoscopic image adapter 200 and the reflection mirror 203 direction. The reflection mirror 203 is also a trapezoidal flat reflection mirror, and is arranged so that a flat reflection surface faces in an oblique direction with respect to the reflection mirror 202 direction and the photographing apparatus 100 direction. In addition, since the reflecting mirror 202 and the reflecting mirror 203 are arranged at a predetermined distance, a light path reaching the imaging apparatus 100 without passing through the reflecting mirror 202 and the reflecting mirror 203 is secured. ing. Of the light paths reaching the optical system member of the photographing apparatus 100, the path direction of the light reflected by the reflection mirror 202 and the reflection mirror 203 is a left visual line 205L, and passes between the reflection mirror 202 and the reflection mirror 203. The direction of the light path to be used is the right visual line 205R.

The size of the reflection mirror 202 is larger than that of the reflection mirror 203, and the shape of the reflection mirror 203 is substantially similar to that of the reflection mirror 202. A reflection mirror 202 and the reflecting mirror 203 is not arranged parallel to the reflecting surface to each other, the light reaching the three-dimensional image for the adapter 200 from the left eye gaze 205L direction at an incident angle theta ₁ to the reflecting mirror 202 Is reflected in the direction of the reflection mirror 203. Further, the light reflected by the reflection mirror 202 is incident on the reflection mirror 203 at an incident angle θ ₂ and is reflected toward the photographing apparatus 100. At this time, since the reflection mirror 202 and the reflection mirror 203 are arranged in parallel, the incident angle θ ₁ and the incident angle θ ₂ are different from each other.

  Since the stereoscopic image adapter 200 is attached to the photographing unit 103 of the photographing apparatus 100 via the photographing adapter holding device 10 as shown in FIG. 4, the light incident on the stereoscopic image adapter 200 is shown in FIG. As shown in FIG. 5, the image sensor 107 reaches the image sensor 107 through the optical lens 106 of the photographing apparatus 100. Here, an example in which the optical lens 106 that is a single convex lens is used as the optical system member of the imaging apparatus 100 is shown, but it is possible to limit the path of light incident on the image sensor 107. A plurality of lenses may be used as the optical system member. The image sensor 107 is, for example, a charge-coupled device (CCD), and a CMOS (complementary MOS) image sensor, a photographic film, or the like may be used.

  Since the photographing apparatus 100 includes the optical lens 106 as an optical system member, the path of light reaching the image sensor 107 is reflected by the reflecting mirror 202 and the reflecting mirror 203 as shown in the drawing, and is optical. This is limited to light collected by the lens 106 and light that has passed between the reflection mirror 202 and the reflection mirror 203. The light that has passed through the stereoscopic image adapter 200 and the optical lens 106 is incident on the image sensor 107 after forming a focal point 109 at a predetermined position inside the photographing apparatus 100. At this time, the light reflected by the reflection mirror 202 and the reflection mirror 203 is incident on the left imaging region 107L which is the left half of the imaging device 107, and the light passing between the reflection mirror 202 and the reflection mirror 203 is captured by the imaging device 107. Is incident on the right imaging region 107R, which is the right half of the image. An image displayed by the light incident on the right imaging region 107R is the right eye image 108R, and an image displayed by the light incident on the left imaging region 107L is the left eye image 108L.

  The right-eye image 108R, which is light incident on the right imaging region 107R, is light that has passed between the reflection mirror 202 and the reflection mirror 203 from the direction of the right visual line 205R that is hatched downward in the drawing. is there. Therefore, the light incident on the right imaging region 107R as the right eye image 108R is a scene when the right viewing line 205R is viewed from the focal point 109, and the scene when the right viewing line 205R is viewed from the focal point 109 is the right eye image. 108R.

  In addition, the left-eye image 108L that is incident on the left imaging region 107L is incident on the reflection mirror 202 from the direction of the left visual line 205L that is hatched downward in the drawing, and is re-reflected by the reflection mirror 203. It is. The light incident on the left imaging area 107L as the left-eye image 108L is reflected by the reflecting mirror 202 and the reflecting mirror 203 and the path is changed, but when it is not reflected by the reflecting mirror 202, it is indicated by a dotted line in the figure. Should follow the path Therefore, a scene when the left viewing line 205L is viewed from the focal point 110 is the left-eye image 108L.

  Since the right-eye image 108R is an image in which the direction of the right visual line 205R is taken from the focus 109, and the left-eye image 108L is an image in which the direction of the left visual line 205L is taken from the focus 110, the left-eye image 108L and the right-eye image 108R Becomes two images having binocular parallax. The imaging element 107 is divided into a left imaging area 107L and a right imaging area 107R. However, since the imaging element 107 is a single element, the right-eye image 108R and the left-eye image 108L are arranged side by side to form a parallax for a single stereoscopic image. The image 108 is captured.

  Since the mirror adjustment unit 204 is attached to the stereoscopic image adapter 200 as shown in FIG. 4, the direction of the right visual line 205R is changed by rotating the mirror adjustment unit 204 to change the direction of the reflection mirror 202. Can be changed. Accordingly, since the position of the focal point 110 also changes, the binocular parallax of the parallax image 108 can be adjusted by changing the viewpoint position and the line-of-sight direction of the left-eye image 108L.

  As described above, the imaging adapter holding device 10 is attached to the imaging device 100 by using the technique of the present invention, and the stereoscopic image adapter 200 is attached to the imaging adapter holding device 10 to easily realize a stereoscopic image. The image adapter 200 and the photographing apparatus 100 can be connected. When a single stereoscopic image adapter 200 is connected to a plurality of types of imaging devices 100, the shape of the imaging adapter holding device 10 and the adapter holding unit 13 are matched with the shape of the imaging device 100 and the arrangement of the imaging unit 103. By designing the position of the adapter and making the shape of the adapter holding part 13 common, it is possible to make the stereoscopic image adapter 200 versatile. Further, when the photographing adapter holding device 10 is attached to the photographing device 100, no trouble occurs in the operation of the photographing device 100. Therefore, when the three-dimensional image adapter 200 is not attached, normal image photographing is performed, and the three-dimensional image is taken. The stereoscopic image parallax image 108 can be taken only when the adapter 200 is attached to the adapter holding unit 13. The operation of attaching the stereoscopic image adapter 200 to the adapter holding portion 13 is simple because the projection formed on the housing 201 of the stereoscopic image adapter 200 only needs to be fitted into the cutout portion 15 and rotated by a minute amount. It is possible to switch between stereoscopic image capturing and normal image capturing with a simple operation.

  FIG. 6 is an external perspective view showing the structure of a display adapter holding device that constitutes the adapter set of the present invention and is mounted on a stereoscopic image projection device, FIG. 7 (a) is a side view, and FIG. Is a front view, and FIG. 7C is a top view. The display adapter holding device 20 includes a flat base plate portion 21 on which each member is formed, a projection device holding portion 22 for attaching / detaching to / from the projection device, and an adapter holding for attaching / detaching a stereoscopic image adapter. A portion 23 and a polarizing member 24 are formed.

  The base plate portion 21 is a rectangular member formed of a material such as plastic or metal, for example, and is a base portion for connecting and integrally forming the projection device holding portion 22, the adapter holding portion 23, and the polarizing member 24. It is the member which becomes. Here, the shape of the base plate portion 21 is a flat plate. However, a portion or a structure that connects and integrates the respective members may be collectively referred to as the base plate portion 21, and may be used for a projection device or a stereoscopic image to be mounted. The shape may be appropriately designed according to the shape of the adapter. The projection device holding portion 22 is a pair of claw-like members formed at both ends of the base plate portion 21, and sandwiches the housing of the projection device using elastic deformation of the base plate portion 21 and the projection device holding portion 22. The display adapter holding device 20 is mounted and held on the projection device. At this time, a fitting hole corresponding to the nail shape of the projection device holding portion 22 may be formed on the projection device side.

  The adapter holding portion 23 is a ring-shaped member formed in the same plane as the base plate portion 21, and four cutout portions 25 for attaching a stereoscopic image adapter are arranged at equal intervals inside the ring. Is formed. The arrangement and shape of the notch portion 25 formed in the adapter holding portion 23 are substantially the same as the notch portion 15 formed in the adapter holding portion 13 of the photographing adapter holding device 10, and the annular shape is also substantially the same. Is the diameter. Therefore, the adapter holding part 13 formed in the imaging adapter holding apparatus 10 and the adapter holding part 23 formed in the display adapter holding apparatus 20 are substantially the same shape and are common members.

  The position where the adapter holding unit 23 is formed is a position corresponding to the image projecting unit of the projection device, and light for projecting an image from the projection device passes through the inside of the annular ring of the adapter holding unit 23 and is used for the stereoscopic image adapter 200. To reach. The adapter holding unit 23 is not limited to an annular shape as long as the adapter for stereoscopic image 200 can be mounted and held, and the shape can be appropriately changed according to the shape of the image projection unit of the projection apparatus. Further, the cutout portions 25 do not need to be formed at four positions at equal intervals, and may be formed in an arbitrary number at arbitrary positions.

  The polarizing member 24 is a member that limits the polarization direction of transmitted light to a predetermined direction, and a general polarizing plate can be used. The polarizing member 24 is formed by being bent into an L shape as shown in the drawing, and is disposed so that one surface covers half of the annular shape of the adapter holding portion 23, and multiple faces are the annular rings of the adapter holding portion 23. It is arranged upright in the vertical direction on the shape diameter. Further, a light shielding material 26 that blocks light is formed at a portion where the polarizing member 24 is bent into an L shape, and the light shielding material 27 is also provided at the tip of the polarizing member 24 that stands upright with respect to the adapter holding portion 23. Is formed. Since the polarizing member 24 is formed in the display adapter holding device 20, it is not necessary to form the polarizing member in the stereoscopic image adapter 200. Therefore, the stereoscopic image adapter 200 is diverted when capturing a stereoscopic image. It becomes possible to do.

  FIG. 8 is an external perspective view showing a state in which the stereoscopic image adapter 200 is attached to the display adapter holding device 20. Since the stereoscopic image adapter 200 is attached to the adapter holding unit 23, the stereoscopic image adapter 200 is disposed on the front surface of the image projection unit of the projection device 300 through the annular opening of the adapter holding unit 23. Therefore, it is possible to project a stereoscopic image in which two images having binocular parallax are arranged in parallel, as described later, by making light incident on the stereoscopic image adapter 200 from the outside enter the image projection unit. It becomes.

  The three-dimensional image adapter 200 can be the same as the three-dimensional image adapter 200 shown in FIG. 4 attached to the photographing adapter holding device 10. Two adapters are provided inside the casing 201 that is a hollow tubular member. In this apparatus, the reflection mirror 202 and the reflection mirror 203 are arranged. A mirror adjustment unit 204 that rotates in conjunction with the reflection mirror 202 is attached to the top of the housing 201, and the direction of the reflection surface of the reflection mirror 202 can be changed by rotating the mirror adjustment unit 204. It has become. Further, the side of the housing 201 that is connected to the adapter holding part 23 has a cylindrical shape with a diameter substantially the same as that of the adapter holding part 23, and a protrusion is formed at a position corresponding to the notch 25. The stereoscopic image adapter 200 is attached to the display adapter holding device 20 by rotating the housing 201 by a minute amount after fitting the protrusion to the notch 25.

  Since the polarizing member 24 is formed so that a part of the L shape protrudes from the adapter holding portion 23, when the stereoscopic image adapter 200 is attached to the adapter holding portion 23, the protruding portion of the polarizing member 24 is the housing. A part of the polarizing member 24 is inserted between the reflection mirror 202 and the reflection mirror 203 by being inserted into the body 201. At this time, since the cylindrical portion of the housing 201 has substantially the same diameter as the annular opening of the adapter holding portion 23, the polarizing member 24 does not contact other members inside the housing 201. Even when the reflecting mirror 202 is rotated by using the mirror adjusting unit 204, the operation is not hindered.

  FIG. 9 is an external perspective view showing a state in which the projection device 300 and the stereoscopic image adapter 200 are connected using the display adapter holding device 20 of the present invention. By attaching the display adapter holding device 20 to the projection device 300 and further attaching the stereoscopic image adapter 200 to the adapter holding portion 23 of the display adapter holding device 20, the display adapter holding device 20 makes it easy to project the projection device 300. And the stereoscopic image adapter 200 are held and connected. The projection device 300 is a device that projects an image onto the screen from the image projection unit. For example, the projection device 300 is a projector that projects an image displayed on a liquid crystal display screen with light emitted from a light source. The projection image projected by the projection apparatus 300 is a parallax image 108 in which two images having binocular parallax are separated into a right half and a left half, and the photographing apparatus 100 using the photographing adapter holding device 10 described above. 3D is an image photographed by connecting the stereoscopic image adapter 200. The projection device 300 is not particularly required to be a special device for stereoscopic display, and a commercially available projector device or the like can be used.

  When a single stereoscopic image adapter 200 is connected to a plurality of types of projection devices 300, the shape of the display adapter holding device 20 and the adapter holding portion 23 are matched to the shape of the projection device 300 and the arrangement of the image projection units. By designing the position of the adapter and making the shape of the adapter holding part 23 common, the stereoscopic image adapter 200 can be made versatile. The operation of attaching the stereoscopic image adapter 200 to the adapter holding portion 23 is simple because the projection formed on the housing 201 of the stereoscopic image adapter 200 only needs to be fitted into the cutout portion 25 and rotated by a minute amount. It is possible to switch between stereoscopic image capturing and normal image capturing with a simple operation.

  Next, a process in which the parallax image 108 projected from the image projection unit of the projection device 300 is projected through the display adapter holding device 20 and the stereoscopic image adapter 200 will be described with reference to FIG. FIG. 10 is a schematic diagram illustrating a state in which the parallax image 108 projected from the image projection unit is transmitted through the polarizing member 24 and the traveling direction is changed by the reflection mirrors 202 and 203. For simplification of illustration, the casing 201 and the mirror adjustment unit 204 are not shown. In the image projection unit, for example, the parallax image 108 displayed on the liquid crystal display unit 307 is projected from the rear light source, and the focal length of the parallax image 108 is adjusted by the optical lens 306.

  The left-eye image 108 </ b> L that is the left half of the parallax image 108 projected from the image projection unit passes through the annular opening of the adapter holding unit 23 and enters the reflection mirror 203 of the stereoscopic image adapter 200. The left-eye image 108 </ b> L reflected by the reflection mirror 203 is transmitted through the left transmission part 24 </ b> L of the polarization member 24 disposed perpendicularly to the adapter holding part 23 between the reflection mirror 202 and the reflection mirror 203. Is incident on. The left-eye image 108L reflected by the reflecting mirror 202 is projected from the opening of the stereoscopic image adapter 200 in the external left projection direction 311L. At this time, the polarization direction of the light that projects the left-eye image 108L becomes a polarization direction that is symmetrical to the polarization direction of the polarization member 24 by being transmitted through the left transmission portion 24L and reflected by the reflection mirror 202. For example, when the polarization direction of the polarization member 24 is 45 degrees to the right, the light that projects the left-eye image 108L projected from the opening has a polarization direction of 45 degrees to the right.

  The right-eye image 108 </ b> R, which is the right half of the parallax image 108, passes through the annular opening of the adapter holding unit 23 and enters the stereoscopic image adapter 200, and is disposed horizontally with respect to the adapter holding unit 23. The light is transmitted through the right transmission part 24R of the polarized member 24 and projected from the opening of the stereoscopic image adapter 200 in the external right projection direction 311R. At this time, the polarization direction of the light that projects the right-eye image 108 </ b> R is the light that has been transmitted through the right transmission unit 24 </ b> R, and thus the polarization direction is the same as the polarization direction of the polarization member 24. For example, when the polarization direction of the polarizing member 24 is 45 degrees to the right, the light that projects the right eye image 108R projected from the opening 25 has a polarization direction of 45 degrees to the right.

  The right-eye image 108R is not reflected by the reflecting mirrors 202 and 203 after passing through the polarizing member 24, and the left-eye image 108L is reflected once by the reflecting mirror 203 after passing through the polarizing member 24. The polarization directions of the light for projecting the left-eye image 108L are symmetrical to each other. Further, since the direction of the reflection mirror 202 can be changed by rotating the mirror adjustment unit 204, the left projection direction 311L is changed by adjusting the normal direction of the reflection mirror 202, and the right-eye image 108R. And the left-eye image 108L can be displayed in the same region having the same focal length.

  By forming the screen on which the left-eye image 108L and the right-eye image 108R are projected with a material that maintains the polarization direction of light, the polarization directions of the right-eye image 108R and the left-eye image 108L projected on the screen are also mutually different. It becomes symmetrical. Accordingly, using polarizing glasses, a polarizing plate that transmits only light having the same polarization direction as that of the polarizing member 24 is disposed in front of the viewer's left eye, and only light having a polarization direction that is symmetrical to the polarizing direction of the polarizing member 24 is disposed in front of the right eye. By disposing a polarizing plate that transmits light, only the right-eye image 108R is incident on the viewer's right eye, and only the left-eye image 108L is incident on the left eye. Since the right-eye image 108R and the left-eye image 108L are images having binocular parallax, the viewer visually recognizes an image having binocular parallax with each of the right eye and the left eye, and the image projected on the polarization holding screen is stereoscopically viewed. It will be recognized as a typical image.

  In the polarizing member 24, a light shielding material 26 is formed at an L-shaped bent portion, and a light shielding material 27 is formed at an L-shaped tip portion. In the L-shape of the polarizing member 24, the light transmitted through the right transmission part 24R arranged in parallel with the adapter holding part 23 is the right eye image 108R, and the left transmission part arranged perpendicular to the adapter holding part 23 The light that passes through 24L is the left-eye image 108L. Therefore, the boundary between the right transmissive part 24R and the left transmissive part 24L is separated by the light shielding material 26 and the light shielding material 27, so that the contours of the projected right-eye image 108R and left-eye image 108L become clear and good. 3D images can be displayed. Although not shown in FIG. 10, since the casing 201 is disposed around the reflection mirrors 202 and 203, there is no intention due to light leaking from the gap between the reflection mirrors 202 and 203 or complicated reflection. Light rays are blocked, and a good stereoscopic image can be displayed.

  As described above, the display adapter holding device 20 is attached to the projection device 300 by using the technique of the present invention, and the stereoscopic image adapter 200 is attached to the display adapter holding device 20 so that a three-dimensional image can be easily obtained. The image adapter 200 and the projection device 300 can be connected. When a single stereoscopic image adapter 200 is connected to a plurality of types of projection devices 300, the shape of the display adapter holding device 20 and the adapter holding portion 23 are matched to the shape of the projection device 300 and the arrangement of the image projection units. By designing the position of the adapter and making the shape of the adapter holding part 23 common, the stereoscopic image adapter 200 can be made versatile. Further, when the display adapter holding device 20 is mounted on the projection device 300, there is no problem with the operation of the projection device 300. Therefore, when the stereoscopic image adapter 200 is not mounted, normal image projection is performed and the stereoscopic image is displayed. The parallax image 108 for a stereoscopic image can be projected only when the adapter for adapter 200 is attached to the adapter holding unit 23. The operation of attaching the stereoscopic image adapter 200 to the adapter holding portion 23 is simple because the projection formed on the housing 201 of the stereoscopic image adapter 200 only needs to be fitted into the cutout portion 25 and rotated by a minute amount. It is possible to switch between stereoscopic image capturing and normal image capturing with a simple operation.

  The adapter holding unit 13 of the photographing adapter holding device 10 and the adapter holding unit 23 of the display adapter holding device 20 have a common specification, so that one stereoscopic image adapter 200 is attached to the photographing device 100 and the projection device 300. In addition, it is possible to capture and display a stereoscopic image. By designing the imaging adapter holding device 10 and the display adapter holding device 20 so as to correspond to the imaging devices 100 and the projection devices 300 having various shapes, the stereoscopic image adapter 200 is provided for each of the projection devices 100 and the projection devices 300. Since it is not necessary to design and the stereo image adapter 200 having a complicated internal structure can be mounted in common, it is easy to provide the stereo image adapter 200 with high versatility.

It is an external appearance perspective view which shows the structure of the adapter holding | maintenance apparatus for imaging | photography which comprises the adapter set of this invention and is mounted | worn with a stereo image imaging device. It is a figure which shows the structure of the adapter holding device for imaging | photography which comprises the adapter set of this invention, and is mounted | worn with a stereo image imaging device, FIG. 2 (a) is a bottom view, FIG.2 (b) is a front view, FIG. (C) is a side view. It is an external appearance perspective view which shows the state which mounted | wore the imaging device with the adapter holding device for imaging | photography of this invention. It is an external appearance perspective view which shows the state which mounted | wore the imaging adapter holding device of this invention with the imaging device, and mounted | worn with the adapter for stereoscopic images to the imaging adapter holding device. FIG. 3 is a schematic cross-sectional view showing an internal structure of a stereoscopic image adapter of the present invention and a light path reaching a photographing apparatus. It is an external appearance perspective view which shows the structure of the adapter holding apparatus for a display which comprises the adapter set of this invention and is mounted | worn with a three-dimensional image projector. It is a figure which shows the structure of the adapter holding device for a display which comprises the adapter set of this invention, and is mounted | worn with a three-dimensional imaging device, FIG. 7 (a) is a side view, FIG.7 (b) is a front view, FIG. (C) is a top view. It is an external appearance perspective view which shows the state which mounted | wore the adapter for stereoscopic images to the display adapter holding | maintenance apparatus of this invention. It is an external appearance perspective view which shows the state which connected the projection apparatus and the adapter for stereoscopic images using the display adapter holding | maintenance apparatus of this invention. It is a schematic diagram which shows a mode that the parallax image projected from the image projection part of a projection apparatus permeate | transmits a polarizing member, and a advancing direction changes with a reflective mirror.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Image | photographing adapter holding | maintenance apparatus 11 and 21 Base board part 12 Image | photographing apparatus holding | maintenance part 13 and 23 Adapter holding | maintenance part 14 Base part 15 and 25 Notch part 16 Holding auxiliary | assistant part 17 Shielding part 18 Field-of-view restriction part 20 Adapter holding apparatus 22 for display Projection device holding unit 24 Polarizing member 24R Right side transmission unit 24L Left side transmission unit 25 Openings 26 and 27 Light shielding material 30 Polarization holding screen 100 Imaging device 101 and 201 Case 102 Viewfinder 103 Imaging unit 104 Flash 105 Shutters 106 and 306 Optical lens 107 Imaging element 107R Right imaging area 107L Left imaging area 108R Right eye image 108L Left eye image 108 Parallax image 109, 110 Focus 200 Stereo image adapter 202, 203 Reflection mirror 204 Mirror adjustment unit 205R Right viewing line 205L Left viewing line 30 Projector 307 the liquid crystal display unit 311R right projection direction 311L left projecting direction

Claims (13)

  A photographic device holding unit for detachably mounting a photographic device having a photographic optical member and a stereoscopic image adapter for deriving a left-eye image and a right-eye image through different optical paths are detachable at the position of the photographic optical member. An adapter holding device comprising: an adapter holding portion for mounting; and a main body portion on which the photographing device holding portion and the adapter holding portion are formed.   The adapter holding device according to claim 1, wherein the photographing device holding portion is mounted on a bottom surface of the photographing device, and the adapter holding portion is disposed on a front surface of the photographing device.   The adapter holding device according to claim 1, wherein the photographing device holding portion is fastened with a tripod attachment portion of the photographing device with a screw.   The adapter holding device according to claim 1, wherein an opening through which the photographing unit of the photographing device is inserted is formed in the adapter holding unit.   The adapter holding device according to claim 1, further comprising a visual field limiting unit that covers a part of the finder of the photographing apparatus and limits a visual field range.   6. The adapter holding device according to claim 5, wherein the visual field range limited by the visual field limiting unit is an incident direction of light that enters the stereoscopic image adapter and reaches the imaging optical member.   The stereoscopic image adapter includes a pair of mirrors arranged opposite to each other, and a part of light incident on the stereoscopic image adapter is reflected by the pair of mirrors to reach the photographing optical member. The adapter holding device according to claim 6, wherein the adapter holding device is provided.   A projection device holding unit for detachably mounting a projection device having a projection optical member, and a stereoscopic image adapter for deriving a left-eye image and a right-eye image by different optical paths are detachable at the position of the projection optical member. An adapter holding device comprising: an adapter holding portion for arranging; and a main body portion on which the projection device holding portion and the adapter holding portion are formed.   A polarizing member is provided on an optical path of an image projected by the projection optical member and has different polarization directions for the left-eye image and the right-eye image projected by the projection device. Item 9. The adapter holding device according to Item 8.   A part of the polarizing member is formed to protrude to the side where the stereoscopic image adapter is mounted, and is disposed on the optical path for projecting the right-eye image or the left-eye image inside the stereoscopic image adapter. The adapter holding device according to claim 9, wherein   The stereoscopic image adapter includes a first mirror that reflects either the right-eye image or the left-eye image projected by the projection device, and a first mirror that reflects the light reflected by the first mirror. The adapter holding device according to claim 10, further comprising a second mirror, wherein a part of the polarizing member is disposed between the first mirror and the second mirror.   A stereoscopic image adapter unit for deriving the left-eye image and the right-eye image through different optical paths and a first holding unit for detachably mounting the stereoscopic image adapter unit are formed, and the stereoscopic image adapter unit is photographed. A first adapter holding means for connecting to the apparatus and a second holding part for detachably mounting the adapter for stereoscopic image are formed, and a second adapter holding for connecting the adapter for stereoscopic image to the projection apparatus And an adapter set.   The adapter set according to claim 12, wherein the first holding part and the second holding part have substantially the same shape.