JP2004101666A - Adapter for photographing stereoscopic image and attaching mechanism for stereoscopic image capturing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adapter enabling a user to easily and surely confirm the position of an optical attachment (stereoscopic image photographing device) in a photographing device such as a video camera when attaching it to the photographing device, and an attaching mechanism for the stereoscopic image capturing device by using the adapter. <P>SOLUTION: The adapter 30 used to attach the stereoscopic image capturing device (optical attachment) 31 to the photographing device such as a digital camera 37 is nearly transparent as a whole, so that the positions of the sensor, the flash and the finder or the like, especially, of the photographing device are easily and accurately confirmed. The adapter 30 is the adapter for photographing the stereoscopic image 30 having a position regulating means (the inner peripheral surfaces 42A and 42B of a ring part 33 and the projected line part 50 of a fixed plate part 38) for regulating a mounting position in the photographing device and constituted to be mounted on the housing 49 of the photographing device by the fitting of irregularities. The attaching mechanism is constituted to detachably support the stereoscopic image capturing device 31 on the adapter by the fitting of the irregularities. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an adapter used to attach a three-dimensional image (three-dimensional image) capturing device to a photographing device such as a video camera incorporating a solid-state imaging device (CCD: Charge Coupled Device), and a three-dimensional image capturing device using the adapter. In the mounting mechanism.
[0002]
[Prior art]
Hitherto, as a three-dimensional image capturing device, a four-mirror system disclosed in Japanese Patent Application Laid-Open No. H11-146424 has been known.
[0003]
This four-mirror system combines an optical attachment for capturing a stereoscopic image such as a still image or a moving image on a single video camera and captures images with parallax. An image having parallax is divided into right and left and taken in as shown in FIG. Then, Figure 9 a pair of left and right stereoscopic image by image processing (b), and expanded to 2-fold, respectively as _{(c) (A L, A} R), a display screen into a field sequential stereoscopic image signals And can be viewed stereoscopically with shutter glasses or the like.
[0004]
As described above, when the left and right images are enlarged twice by the image processing, the disparity is also enhanced by a factor of two, which causes eyestrain, and the amount of disparity changes depending on the size of the display. The amount of parallax increases.
[0005]
The present applicant has already disclosed in Japanese Unexamined Patent Application Publication No. 11-46373 a stereoscopic image capturing device (hereinafter, referred to as a prior application device) capable of obtaining a stereoscopic image in which the amount of parallax is suppressed to a necessary minimum and a burden on eyes is obtained. ).
[0006]
An example of this prior application will be described with reference to FIGS. 10 to 13. First, FIG. 10 shows an internal part housed in an optical attachment mounted on a video camera, and has an angle of view of 2θ at the center point 10 of the entrance pupil. The L image 11 is directly incident on the center point 10 by the camera to be photographed, and is taken in as the L image for the left eye.
[0007]
On the other hand, the R image 12 is reflected twice by the mirrors 13 and 14, enters the center point 10, and is taken in as an R image for the right eye. In this case, the R image 12 is equivalent to being incident toward the intersection 15 of the broken line. At this time, the distance d between R and L is reduced to about 1/4 as compared with the above-mentioned four-mirror system.
[0008]
Here, the right end 14R of the mirror 14 is on the optical axis 16 of the photographing lens 2, and the inclination angle of the mirror image 13 is the same as the inclination angle of the mirror 13 and the R image 12 incident at almost the same angle as the L image 11. Is set to be incident. In addition, the left end 13L of the mirror 13 is brought close to the optical axis 16 as long as it does not obstruct the left side light beam 17 of the L-side image information, so that the optical attachment can be significantly reduced in size.
[0009]
As a specific example, when designed for a camera whose focal length is 6 mm (horizontal angle of view is 43 degrees with a 1/3 inch CCD) and the position of the entrance pupil is 35 mm from the front of the taking lens, d is about 20 mm. Become. That is, the same parallax can be obtained as when two cameras were photographed 20 mm apart. The image obtained by this attachment is obtained by enlarging the left and right half images twice as large by the image processing disclosed in Japanese Patent Application No. 7-334423, so that the parallax is also doubled. This is equivalent to shooting two cameras 40 mm apart. This is somewhat smaller since the average interpupillary distance of the human right and left is 65 mm, but a sufficient stereoscopic effect can be obtained.
[0010]
Although the amount of parallax also changes depending on the size of the display, this will be described with reference to FIGS. 11, two cameras 20L, the distance 20R and _{d 1,} the camera 20L, and shows the positional relationship at the time of photographing A, C, B and an object arranged in order of proximity to 20R.
[0011]
When the convergence (intersection of the optical axis centers of the left and right cameras) is adjusted to C, L and R images are obtained from the respective cameras as shown in FIGS. 11B and 11C. These are converted into field-sequential signals, reproduced on the display 21 as shown in FIG. 12, and the shutter glasses 22 allow the L image to enter only the left eye and the R image to enter only the right eye. C is located on the display 21, A is located on the front of the display 21, and B is located on the back of the display 21.
[0012]
Here, as shown in FIG. 13, when the video information is reproduced as it is and reproduced on the larger display 23, the parallax is all expanded in the horizontal direction. As a result, the position of the image moves in the direction of the arrow shown in the figure. In this case, if the interval b between the images of B exceeds the human eye width (about 65 mm), fusion becomes difficult. An improper amount of parallax causes fatigue in stereoscopic vision.
[0013]
Regarding this point, the parallax amount in a method that provides a sense of depth by using the Pulfrich effect on an image moving in the left-right direction may be referred to. That is, if the light is weakened by attaching an ND filter to one eye, a transmission delay to the cerebrum occurs accordingly, and an image having a time difference between the left and right eyes is processed by the cerebrum and stereoscopically viewed. Although the delay is about 10 msec, a natural three-dimensional effect can be obtained even at a speed of 1 m per second. In this case, it is equivalent to a camera interval of 100 × 0.01 = 1 cm. From this, it can be seen that a minimum parallax amount is required for stereoscopic viewing. Although this is limited by the size of the lens and the horizontal angle of view, shooting with a parallax amount equal to or smaller than a 3D (three-dimensional) optical attachment to which the prior application apparatus is applied cannot be performed by other means. .
[0014]
As described above, according to the prior application, in a video device that captures a three-dimensional image, the image for one of the eyes incident from a single lighting window is reflected on the right half of the imaging lens without being reflected by a mirror. Directly taking in, first and second mirrors are disposed opposite to each other through the one eye image light between the lighting window and the taking lens, and the other eye image light incident from the lighting window The angles of the first and second mirrors are respectively set to angles at which the light is reflected by the left half of the taking lens by reflection. As a result, the amount of parallax can be reduced to 1/3 to 1/4 as compared with the four-mirror system, and the image can be photographed from near to infinity with a deviation of ± 1.5 cm (on a 32-inch monitor) without adjustment. Therefore, a stereoscopic image with less burden on the eyes can be obtained.
[0015]
[Problems to be solved by the invention]
Although the prior invention has the above-mentioned excellent features, it does not specifically disclose an adapter used for mounting the optical attachment (stereoscopic image capturing device) at a proper position. This is the same for the four-mirror system described above.
[0016]
SUMMARY OF THE INVENTION An object of the present invention is to provide an adapter capable of easily and surely confirming a position when an optical attachment (stereoscopic image capturing device) is mounted on a photographing device such as a video camera, and a mounting mechanism of the stereoscopic image capturing device using the adapter. Is to provide.
[0017]
[Means for Solving the Problems]
That is, the present invention is used for attaching a stereoscopic image capturing device (optical attachment) to a photographing device, and at least a part of the photographing device, which is in contact with a housing, is configured to transmit light. And a mounting mechanism for supporting the three-dimensional image capturing device on the adapter by fitting the concave and convex portions.
[0018]
According to the present invention, in order to mount an optical attachment (stereoscopic image capturing device) for capturing a three-dimensional image such as a still image or a moving image to a capturing device, at least a portion that is in contact with a housing of the capturing device is a translucent adapter. The adapter can be attached while confirming the position of the housing (especially the viewfinder, flash or sensor) located inside the adapter. You can check.
[0019]
Even if the adapter covers various sensors such as distance and brightness measurement, it does not hinder the operation of the sensor because it is translucent (in the case of a sensor using infrared light, it is transparent to infrared light). Material), does not hinder the irradiation of auxiliary light such as flash (in the case of night shot by infrared light irradiation, use a material that is transparent to infrared light), and does not hinder the function of the finder (viewing window or liquid crystal ( LCD), warning when using the self-timer for automatic shooting, display lamp display, and does not interfere with the light receiving unit for remote control operation. (In the case of a sensor that uses infrared light, it is transparent to infrared light.) Material).
[0020]
Furthermore, when attaching the adapter to the housing of the photographing device, it is possible to attach screws and the like while confirming the positions of the attachment holes, thereby facilitating positioning, and aligning the concave and convex portions during attachment. Also becomes easier.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, it is preferable that a portion corresponding to a finder, a flash, or a sensor of the photographing device of the adapter is configured to be translucent in order to obtain the above-described effects.
[0022]
Further, it is preferable that the adapter has a position regulating means for defining a mounting position with respect to the photographing apparatus, and the adapter is attached to a housing of the photographing apparatus via the position regulating means.
[0023]
When the height (center) position of the lens barrel differs depending on the model of the imaging device, the adapter is detachably fitted around the lens barrel provided on the housing of the imaging device. Part as the position restricting means, and a plurality of inscribed circles whose center positions are different from each other so that the cylindrical part is always inscribed in the outer peripheral surface of the lens barrel at a different height. Is desirably selected for each of the different height positions.
[0024]
Further, in order to define the mounting position of the adapter, the adapter has a fixing plate portion which is in contact with the housing of the photographing apparatus and is detachably fixed to the housing. It is desirable that a concave portion or a convex portion which is fitted into the concave and convex portions be provided on the fixed plate portion as the position regulating means.
[0025]
Further, the adapter has a fixing plate portion which is in contact with the housing of the imaging device and is detachably fixed to the housing, and a plurality of fixing positions are provided on the fixing plate portion, It is desirable that these fixed positions are selected for each different model of the imaging device. The fixed plate portion and the upright plate portion connected to the fixed plate portion are also preferably configured to be transparent.
[0026]
In this case, it is preferable that the plurality of fixing positions exist on the bottom surface of the housing of the imaging device, and also serve as fixing positions of the tripod with respect to the housing.
[0027]
In order to accurately capture a stereoscopic image, the adapter has a fixed plate portion which is in contact with a bottom surface of the housing of the photographing device and is detachably fixed to the housing. Is provided with a protruding plate portion that protrudes downward, so that when attached to the photographing device and placed on a mounting surface, the stereoscopic image capturing device is held in a non-contact state with the mounting surface. It is preferable that the stereoscopic image capturing device does not contact the placement surface and change the parallelism or the like of the placement surface.
[0028]
In the present invention, the imaging device is an imaging device that captures a stereoscopic image in such a manner that an image for one eye is positioned in approximately one half of the screen and a video for the other eye is positioned in approximately the other half of the screen. And the stereoscopic image capturing device may be configured to capture the image light for one eye and the image light for the other eye, respectively.
[0029]
In this case, in order to reduce the amount of parallax between the two eyes and obtain a stereoscopic image with less burden on the eyes, the stereoscopic image capturing device includes:
Without reflecting the image light for the one eye incident from a single daylighting window with a mirror, directly capturing the image light for approximately one half of the imaging lens corresponding to the image for the one eye,
Between the lighting window and the photographing lens, a plurality of mirrors were disposed facing each other via the video light for the one eye,
It is preferable that the angle of the plurality of mirrors is set to an angle at which the image light for the other eye incident from the lighting window is taken into substantially the other half of the photographing lens by reflection. .
[0030]
The adapter has a window facing a finder of the photographing device, and a light-shielding process or a transmission is performed on substantially the other half of the window corresponding to a video light for a specific eye (for example, a right eye). If the process for reducing the light amount is performed, the amount of light incident on the processing region is cut or reduced, and at the same time, a sufficient amount of light incident on the non-processing region is obtained. Therefore, when focusing or the like is set based on the incident light from the non-processing area, for example, the image light for the left eye, shooting is easy and the image becomes clear.
[0031]
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0032]
FIGS. 1 to 4 show an adapter for mounting an optical attachment (stereoscopic image capturing device) according to the present embodiment, and a video camera (herein, a digital still camera; hereafter abbreviated as a digital camera) using this adapter. This shows a mechanism for mounting the stereoscopic image capturing device on a moving image as well as an image.
[0033]
As shown in FIGS. 1 to 3, the adapter 30 according to the present embodiment is entirely formed of a translucent or transparent plastic, and an optical attachment (a stereoscopic image capturing device) 31 is attached to the adapter 30. Can be
[0034]
At the time of this attachment, as shown in FIG. 2, an optical attachment is attached to a female screw portion 34 formed on the inner periphery of a cylindrical portion 33 formed on the adapter 30 corresponding to the cylindrical shape of the ring portion 32 of the optical attachment 31. A male screw portion 35 formed on the outer periphery of the ring portion 32 of the 31 is screwed and fitted to fix the optical attachment 31 detachably. Although not shown, after the protrusion formed on the outer periphery of the ring portion 32 is fitted into the notch formed on the inner periphery of the cylindrical portion 33, the optical attachment 31 is rotated about the optical axis 16 somewhat. 3, the optical attachment 31 can be fixed at a regular position with respect to the adapter 30 as shown in FIG. Then, by performing the reverse operation, the optical attachment 31 can be removed from the adapter 30.
[0035]
The cross section of the optical attachment 31 is schematically shown in FIG. 4, but the internal structure and function are the same as those shown in FIG. That is, the optical attachment 31 causes the digital camera 37 to display an image for one eye (here, for the left eye) on substantially one half of the screen and an image for the other eye (here, for the right eye) on the screen. Each image light is incident so as to be located at substantially the other half of the lens, but substantially one half of the photographing lens 2 is reflected without reflecting the image light for one eye incident from a single lighting window 44 with a mirror. And a plurality of mirrors 13 and 14 are arranged between the lighting window 44 and the photographing lens 2 via the image light for one eye so as to face each other. The angles of the plurality of mirrors 13 and 14 are set to angles at which the image light is taken into substantially the other half of the photographing lens 2 by reflection.
[0036]
As shown in FIGS. 1 and 2, the adapter 30 is provided with a fixed plate portion 38 connected to a digital camera 37 at a substantially right angle in the front-rear direction with respect to an upright plate portion 36 provided with a tubular portion 33. It is almost L-shaped.
[0037]
The cylindrical portion 33 of the adapter 30 has an inner peripheral surface 42 that is inscribed and fitted into an outer peripheral surface 41 of a ring portion 40 that accommodates a lens barrel 39 with a built-in lens of the digital camera 37 so as to be able to enter and exit. I have. The inner peripheral surface 42 corresponds to the height position of the lens barrel portion 39 depending on the model of the digital camera 37, and as shown in FIG. The first arc surface 42A of the center 43A coinciding with the outer peripheral surface, and the second arc surface 42B of the center 43B coincident with the outer peripheral surface of the ring portion 40 in the case of the lens barrel lower position. Are inscribed in the corresponding outer peripheral surface 41 of the ring portion 40 having a predetermined height.
[0038]
Accordingly, even if the height of the lens barrel portion 39, that is, the ring portion 40 differs depending on the model of the digital camera 37, the outer circumference of the ring portion 40 is accordingly changed to the inner circumference 42A of one of the ring portions 33 of the adapter 30. Alternatively, the center of the adapter 30 can be easily and accurately adjusted to the center of the regular lens barrel simply by being joined to the adapter 42B.
[0039]
Also, screw holes 47A and 47B are formed in the fixing plate 38 provided on the bottom of the adapter 30, and these screw holes are originally for fixing a tripod of the digital camera 37, It is formed at a different position depending on the camera model. Then, without using the tripod, as shown in FIG. 6, for example, a screw 48 is screwed into the housing 49 of the digital camera 37 from one of the screw holes 47A, whereby the fixing plate portion 38 is attached to the bottom surface of the camera housing 49. Removably screw. Instead of the screw holes 47A and 47B, a slot (elongated hole) 47C may be formed like an imaginary line and screwed in this slot. The fixing plate portion 38 is formed with a positioning small hole 55 which is fitted into a small projection (not shown) provided on the camera housing.
[0040]
In this case, if the screwing position is changed according to the camera model, the fixing plate 38 can always be fixed to the camera housing 49. An L-shaped positioning ridge 50 is formed in advance on a corner of the fixing plate 38 on the camera housing side, and the positioning ridge 50 is fitted into the protrusion 51 of the camera housing 49 in an uneven manner. Then, the above-mentioned screwing is performed by determining the positional relationship between the two. As a result, the fixing plate 38 can be always fixed at a regular position with respect to the camera housing 49.
[0041]
Further, in the fixed plate portion 38, a protruding plate portion 52 projecting substantially perpendicularly downward is integrally provided below the ring portion 33. The protruding plate portion 52 serves as a leg portion when the adapter 30 is attached to the camera housing 49 as shown in FIG. 7A and placed on the placement surface 53 as shown in FIG. 7B. In addition, a lower end surface 54 in contact with the mounting surface 53 is provided in parallel with the fixed plate portion 38.
[0042]
Therefore, the lower end of the protruding plate portion 52 and the lower end of the fixed plate portion 38 are supported on the mounting surface 53 in contact with each other. Since there is no impact force or the like, these mirrors can be always maintained in a normal state.
[0043]
A window 46 facing the finder 45 of the digital camera 37 is provided above the standing plate 36 of the adapter 30. For example, a half 46A of the window 46 corresponding to the video light for the right eye is shielded. Processing or processing for reducing the amount of transmitted light, for example, embossing or blackening processing, is performed, and the other half 46B has sufficient translucency without being subjected to such processing.
[0044]
That is, when a target image is viewed from the finder 45 with the optical attachment 31 attached to the digital camera 37, for example, video light for the left eye enters through the light transmitting portion 46B of the window 46 of the adapter 30. The image light for the right eye does not enter from the half portion 46A subjected to the light shielding processing or the transmitted light amount reducing processing, or enters only with a low light quantity. FIG. 8 is a schematic diagram showing the state.
[0045]
Therefore, when the adapter 30 is attached to the camera and used, the image for the left eye can be focused on at the time of shooting, so that a good image can always be reproduced on the screen of the display, and the shooting state can be displayed. You can check. Also, if the adapter 30 is removed from the camera, it can be used as a normal digital camera that does not reproduce a stereoscopic image.
[0046]
Further, since the adapter 30 is made of a translucent material, the state of the inside of the adapter 30 can be checked from the outside, so that it is easy to handle and attach to the camera, and it is also easy to check the attachment state. .
[0047]
More specifically, when the adapter 30 is attached to the camera housing 49, the adapter 30 can be attached while confirming the position of the lens barrel 39 through the tubular portion 33. Become. In this case, when a collapsible photographing lens is used, it is possible to visually confirm that the lens barrel 39 enters and exits. For example, when the power is turned off, the lens barrel 39 does not sink. The adapter 30 can be visually checked and removed, and when the power is turned on, the adapter 30 can be turned on after confirming that the adapter 30 has been securely attached, so that it is possible to confirm that the adapter 30 is mounted at the correct position during shooting. The lens barrel 39 having a mechanically fragile mechanism can be protected by the transparent tubular portion 33. The adapter 30 may be always attached to the camera housing 49.
[0048]
However, the portion of the adapter 30 that is made transparent is not the portion corresponding to the lens barrel portion, but the pedestal portion of the adapter (a portion in contact with the camera housing, for example, the fixed plate portion 38 or the upright plate portion 36) is made transparent. It may be desirable. That is, it is desirable to prevent light from entering the lens barrel.
[0049]
Even if the adapter 30 covers various sensors such as distance and brightness measurement, since the adapter 30 is transparent, the operation of the sensor is not hindered. Material that is transparent to infrared light), does not hinder the irradiation of auxiliary light such as flash (a material that is transparent to infrared light in the case of night shot by infrared light irradiation), and does not hinder the function of the finder It does not disturb the warning when using the self-timer, automatic display, etc., the display lamp display, and does not disturb the light receiving unit for remote control operation (in the case of a sensor using infrared light, the infrared light And a transparent material.).
[0050]
As described above, in the adapter 30, the vicinity of the sensor, the vicinity of the flash, or the vicinity of the finder (more preferably, only approximately half of the finder is made transparent as described above) is preferably made transparent.
[0051]
On the other hand, it is preferable that the optical attachment 31 (especially near the mirror) is not transparent, and it is more preferable that the vicinity of the mirror is not completely transparent. That is, it is desirable that light other than from the front of the camera does not hit the mirror.
[0052]
Furthermore, when the adapter 30 is attached to the housing 49, screws and the like can be attached while confirming the positions of the attachment holes, so that positioning is facilitated, and alignment between the concave portion and the convex portion at the time of attachment is also achieved. It will be easier.
[0053]
The embodiments described above can be variously modified based on the technical idea of the present invention.
[0054]
For example, the transparent portion of the adapter 30 described above is preferably sufficiently transparent, but may be transparent to visible light, and may be translucent. The shape, size, material and the like of the adapter 30 may be variously changed, and the position defining means and the fixing means at the time of attachment to the camera are not limited to those described above. Further, the adapter 30 and the optical attachment 31 may be formed integrally, for example, may be formed integrally. In this case, at the time of molding, the optical attachment 31 can be accurately arranged at a regular position as designed, which is advantageous.
[0055]
Further, the mounting target of the adapter is not limited to the above-described digital camera, and may be another video camera as long as it has a recording function of a CCD, a magnetic disk, or a magnetic tape system.
[0056]
In addition, the above-described video for each eye is not only reproduced on a display separate from the camera but also reproduced on a monitor screen attached to the camera, and this monitor is provided with a finder function as described in FIG. The video for the left eye may be monitored.
[0057]
Further, the present invention is suitable when the optical attachment shown in FIG. 10 is mounted, but is also applicable when a normal four-mirror type optical attachment is mounted, and is not limited to still images. It is also effective for movie shooting. In addition, the present invention is not limited to the above-described stereoscopic image observation by the shutter glasses method, and can be applied to well-known general stereoscopic image observation using parallax due to polarization or the like.
[0058]
Operation and Effect of the Invention
As described above, in order to mount a stereoscopic image capturing device for capturing a stereoscopic image on a photographing device, the present invention uses a translucent adapter at least in a portion in contact with a housing of the photographing device. The adapter can be attached while confirming the position of the housing located inside the camera, making it easy to position the adapter, and confirming that the camera is mounted at the correct position during shooting.
[0059]
Also, even if the adapter covers various sensors such as distance and brightness measurement, since it is translucent, it does not hinder the operation of the sensor, does not hinder the irradiation of auxiliary light such as flash, and the function of the finder. It does not hinder the warning, such as when using the automatic shooting self-timer, or the display lamp display, and does not hinder the light receiving unit for remote control operation.
[0060]
Furthermore, when attaching the adapter to the housing of the photographing device, it is possible to attach screws and the like while confirming the positions of the attachment holes, thereby facilitating positioning, and aligning the concave and convex portions during attachment. Also becomes easier.
[Brief description of the drawings]
FIG. 1 is a front view (a), a bottom view (b), and a rear view (c) of an adapter according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view when the optical attachment (stereoscopic image capturing device) is attached to the camera using the adapter.
FIG. 3 is a perspective view of the same mounting state.
FIG. 4 is a schematic vertical sectional view of the optical attachment (stereoscopic image capturing device).
5A is a front view when the adapter is attached to the camera, and FIGS. 5B and 5C are schematic views showing the inner peripheral surface of the adapter inscribed in the lens barrel of the camera. FIG.
FIG. 6 is a sectional view taken along the line VI-VI in FIG. 1 when the adapter is attached to the camera.
FIG. 7A is a front view when the adapter is attached to the camera, and FIG. 7B is a side view including the optical attachment (stereoscopic image capturing device).
FIG. 8 is a schematic view of the reproduced left and right eye images.
9A and 9B are explanatory diagrams when a left and right image are cut out in a conventional image at the time of capturing a stereoscopic image, FIG. 9B is an explanatory diagram of a left-eye image that is cut and enlarged, and FIG. It is explanatory drawing (c) of the image for right eyes.
FIG. 10 is a schematic sectional view showing an optical system of an optical attachment (stereoscopic image capturing device) by the prior application.
FIG. 11 is an explanatory diagram showing a positional relationship of a subject at the time of shooting.
FIG. 12 is an explanatory diagram showing a parallax amount when reproduced on a display.
FIG. 13 is an explanatory diagram showing the amount of parallax when reproduced on a large display.
[Explanation of symbols]
2 ... Lens, 10 ... Center point, 11 ... L image, 12 ... R image,
13, 14: mirror, 15: intersection, 16: optical axis of lens, 17: light beam,
20L, 20R: Camera, 21, 23: Display,
22: shutter glasses, 30: adapter,
31 ... optical attachment (stereoscopic image capturing device), 32 ... ring part,
33 ... cylindrical part, 34 ... female screw part, 35 ... male screw part, 36 ... standing plate part,
37: digital camera, 38: fixed plate, 39: lens barrel, 40: ring
41: outer peripheral surface, 42: inner peripheral surface, 42A, 42B: arc surface,
43A, 43B: center, 45: finder, 46: window,
46A: half (with shading) 46B: other half (without shading)
47A, 47B: screw hole, 47C: slot, 48: screw, 49: housing,
50: ridge, 51: projection, 52: projecting plate, 53: mounting surface, 54: lower end

Claims (27)

An adapter for capturing a three-dimensional image, which is used for mounting a three-dimensional image capturing device on the capturing device, and at least a portion of the capturing device that is in contact with a housing is translucent. The adapter according to claim 1, wherein a portion corresponding to a finder, a flash, or a sensor of the photographing device is configured to be transparent. 2. The adapter according to claim 1, further comprising a position defining unit that defines a mounting position with respect to the photographing device, wherein the adapter is configured to be attached to the housing of the photographing device via the position defining unit. 3. A cylindrical portion detachably fitted around the lens barrel provided in the housing of the photographing device as the position restricting means, wherein the cylindrical portion has a different height; 4. A plurality of inscribed circles whose center positions are different from each other so that the inscribed circle is always inscribed on the outer peripheral surface of the inclining circle, and any one of these inscribed circles is selected for each of the different height positions. Adapter. A fixing plate portion which is in contact with the housing of the photographing device and is detachably fixed to the housing, and a concave portion or a convex portion which is fitted into and recessed from the housing is fixed as the position regulating means. The adapter according to claim 3, wherein the adapter is provided on a plate portion. A fixing plate portion which is in contact with the housing of the photographing device and is detachably fixed to the housing; a plurality of fixing positions are provided on the fixing plate portion; The adapter according to claim 3, wherein the adapter is selected for each of different types of photographing devices. The adapter according to claim 6, wherein the plurality of fixing positions are present on a bottom surface of the housing of the imaging device, and also serve as fixing positions of a tripod with respect to the housing. A fixing plate portion which is in contact with a bottom surface of the housing of the photographing device and is detachably fixed to the housing; and a protruding plate portion which protrudes downward is provided on the fixing plate portion; 4. The adapter according to claim 3, wherein the three-dimensional image capturing device is configured to be kept in a non-contact state with the mounting surface when the device is mounted on the mounting surface. The adapter according to claim 5, 6 or 8, wherein the fixed plate portion and the upright plate portion connected to the fixed plate portion are configured to be transparent. The imaging device is configured as an imaging device that captures a three-dimensional image in such a manner that an image for one eye is positioned in substantially one half of the screen and a video for the other eye is positioned in substantially the other half of the screen. A window having a window facing a finder of the apparatus, and a light-shielding process or a process of reducing a transmitted light amount is performed on substantially the other half of the window corresponding to the image light for the other eye. The adapter described in 3. The imaging device is configured as a video device that captures a stereoscopic video in such a manner that the video for one eye is located on one half of the screen and the video for the other eye is located substantially on the other half of the screen,
The stereoscopic image capturing device is configured to capture the image light for the one eye and the image light for the other eye, respectively.
The adapter according to claim 1. The three-dimensional image capturing device,
Without reflecting the image light for the one eye incident from a single daylighting window with a mirror, directly capturing the image light for approximately one half of the imaging lens corresponding to the image for the one eye,
Between the lighting window and the photographing lens, a plurality of mirrors were disposed facing each other via the video light for the one eye,
The angle of each of the plurality of mirrors is set to an angle at which the image light for the other eye incident from the lighting window is taken into substantially the other half of the photographing lens by reflection. 12. The adapter according to item 11. The imaging device is configured as an imaging device that captures a three-dimensional image in such a manner that an image for one eye is positioned in substantially one half of the screen and a video for the other eye is positioned in substantially the other half of the screen. A window having a window facing a finder of the apparatus, and a light-shielding process or a process of reducing a transmitted light amount is performed on substantially the other half of the window corresponding to the image light for the other eye. 12. The adapter according to item 12. The imaging device has an adapter for mounting the stereoscopic image capturing device, the adapter supports the stereoscopic image capturing device, and at least a portion in contact with the housing of the capturing device is configured to be translucent. , A mounting mechanism of a stereoscopic image capturing device for stereoscopic image shooting. The mounting mechanism according to claim 14, wherein a portion corresponding to a finder, a flash, or a sensor of the photographing device is configured to be transparent. The mounting mechanism according to claim 14, wherein the adapter has a position defining unit that defines an attachment position with respect to the photographing device, and is configured to be attached to a housing of the photographing device via the position defining unit. . 17. The mounting mechanism according to claim 16, wherein the stereoscopic image capturing device is detachably supported on the adapter by concave and convex fitting. A tubular portion detachably fitted around a lens barrel provided in the housing of the photographing device is provided on the adapter as the position restricting means, and the tubular portion has a different height position. 17. A plurality of inscribed circles whose center positions are different from each other so as to be inscribed in the outer peripheral surface of the lens barrel, and one of these inscribed circles is selected for each of the different height positions. The mounting mechanism described in 1. A fixing plate portion which is in contact with the housing of the photographing device and is detachably fixed to the housing is provided on the adapter, and a concave portion or a convex portion fitted into and recessed from the housing is provided with the position regulating means. 17. The mounting mechanism according to claim 16, wherein the mounting mechanism is provided on the fixed plate portion. A fixing plate portion which is in contact with the housing of the photographing apparatus and is detachably fixed to the housing is provided on the adapter, and a plurality of fixing positions are provided on the fixing plate portion. 17. The mounting mechanism according to claim 16, wherein a position is selected for each of different types of the photographing device. 21. The mounting mechanism according to claim 20, wherein the plurality of fixing positions are present on a bottom surface of the housing of the imaging device, and also function as fixing positions of a tripod with respect to the housing. A fixing plate portion which is in contact with a bottom surface of the housing of the photographing device and is detachably fixed to the housing is provided on the adapter, and a projection plate portion projecting downward on the fixing plate portion is provided. 17. The mounting according to claim 16, wherein the stereoscopic image capturing device is configured to be kept in a non-contact state with the mounting surface when the adapter is mounted on the imaging device and mounted on the mounting surface. mechanism. 23. The mounting mechanism according to claim 19, wherein the fixing plate and the standing plate connected to the fixing plate are transparent. The imaging device is configured as an imaging device that captures a three-dimensional image in such a manner that an image for one eye is positioned in substantially one half of the screen and a video for the other eye is positioned in substantially the other half of the screen. A window having a window facing a finder of the apparatus, and a light-shielding process or a process of reducing a transmitted light amount is performed on substantially the other half of the window corresponding to the image light for the other eye. 16. The adapter according to item 16. The image capturing device is configured as a video device that captures a stereoscopic video so that the video for one eye is located in approximately one half of the screen, and the video for the other eye is located in approximately the other half of the screen,
The stereoscopic image capturing device is configured to capture the image light for the one eye and the image light for the other eye, respectively.
The mounting mechanism according to claim 16. The three-dimensional image capturing device,
Without reflecting the image light for the one eye incident from a single daylighting window with a mirror, directly capturing the image light for approximately one half of the imaging lens corresponding to the image for the one eye,
Between the lighting window and the photographing lens, a plurality of mirrors were disposed facing each other via the video light for the one eye,
The angle of each of the plurality of mirrors is set to an angle at which the image light for the other eye incident from the lighting window is taken into substantially the other half of the photographing lens by reflection. 25. The mounting mechanism according to 25. The imaging device is configured as an imaging device that captures a stereoscopic image in such a manner that an image for one eye is positioned in approximately one half of the screen and an image for the other eye is positioned in the other half of the screen, and the adapter is A window facing a finder of the photographing apparatus, and a substantially other half of the window corresponding to the image light for the other eye is subjected to a light shielding process or a process of reducing a transmitted light amount. An attachment mechanism according to claim 26.

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