JP2001318442A - Stereoscopic video photographic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stereoscopic video photographic device of simple constitution which is capable of automatically controlling the vergence angles of right and left optical axes and is also capable of arbitrarily and manually regulating the vergence angles. SOLUTION: This device includes right and left total reflection mirrors which reflect the luminous fluxes from right and left shutters in directions intersecting with each other, right and left first lens groups which condense the luminous fluxes from these total reflection mirrors, a synthesizing optical element which aligns the optical axes of the right and left first lens groups, a second lens group which is arranged to image the one luminous flux obtained by this synthesizing optical element onto an image plane, a diaphragm which is arranged between the synthesizing optical element and the second lens group, a vergence angle displacing means for automatically setting the vergence angles by changing the vergence angles of the right and left optical axes according to the distance to the subject and a vergence angle regulating means for manually regulating vergence angles. The vergence angle displacing means and the vergence angle regulating means are so constituted as to mechanically and synchronously driven.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing apparatus such as a video camera and an electronic still camera, and more particularly to a stereoscopic picture photographing apparatus for photographing a parallax image of a photographing target.

[0002]

2. Description of the Related Art Conventionally, various stereoscopic image photographing apparatuses used for video cameras, electronic still cameras, and the like have been proposed. For example, in Japanese Patent Application Laid-Open No. 8-149515, an anamorphic mirror, a focus lens, left and right liquid prisms (VAP: vari-angle prism) arranged for right and left eyes, a liquid prism driving circuit, Distance measuring means for calculating the distance between the image sensor and the subject, and according to the distance measured by the distance measuring means, a convergence angle displacement means for changing the optical axis angle of the right eye component and the left eye component. There is disclosed a stereoscopic video photographing device having a configuration provided with the stereoscopic video photographing device.

The intersection of the optical axes of the left and right liquid prisms with respect to the subject distance is called convergence, and the angle of the optical axis at which the optical axes intersect is called the convergence angle. In order to control the feeling, it is necessary to shift the convergence position, that is, change the convergence angle so that the optical axis converges at the position of the subject.

For this reason, in the stereoscopic image photographing apparatus, the liquid prisms disposed on the left and right are expanded and contracted by the liquid prism driving circuit based on the distance information by the distance measuring means, and the convergence angle displacement means is used. The angle is set automatically.

[0005]

However, in the above-mentioned conventional three-dimensional image photographing apparatus, the photographer could not manually adjust the convergence angle of the optical axis manually during photographing.

For this reason, there is a problem that the photographer's desire cannot be freely reflected in the image when the photographer particularly wants to emphasize the stereoscopic image or when he does not want to emphasize the stereoscopic image too much. there were.

[0007] The present invention solves such inconveniences of the conventional example, and can automatically control the convergence angle of the left and right optical axes and can also arbitrarily adjust it manually.
An object of the present invention is to provide a stereoscopic video photographing device having a simple configuration.

[0008]

In order to achieve the above object, an invention according to claim 1 comprises a left and right shutter and a left and right total reflection mirror for reflecting light beams from the left and right shutters in directions intersecting each other. A first lens group on the left and right for condensing the light beam from the total reflection mirror, a combining optical element for matching the optical axes of the first lens group on the left and right, and one light beam obtained by the combining optical element. A second lens group arranged so as to form an image on the image plane, a diaphragm arranged between the combining optical element and the second lens group, and a left and right optical axis depending on the distance to the subject. A convergence angle changing means for automatically changing a convergence angle; and a stereoscopic image photographing apparatus for photographing a stereoscopic image, wherein a convergence angle adjusting means for manually adjusting the convergence angle is provided.

The invention of claim 2 is characterized in that, in the invention of claim 1, the convergence angle displacement means and the convergence angle adjustment means are configured to be driven mechanically synchronously.

The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the convergence angle displacement means and the convergence angle adjustment means are arranged close to each other.

[0011] The invention of claim 4 is the invention of claim 1, 2, or 3.
In the invention, the convergence angle adjusting means has an operation unit.

A fifth aspect of the present invention is characterized in that, in the fourth aspect of the present invention, the operation section is disposed at a position that does not hinder the photographing operation of the apparatus main body.

[0013] The invention of claim 6 is the invention of claim 1, 2, or 3.
The invention is characterized in that the convergence angle displacement means and the convergence angle adjustment means rotate the left and right total reflection mirrors synchronously at the same rotation speed.

[0014]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the basic configuration of a three-dimensional video photographing apparatus. Reference numeral 1 denotes an interchangeable lens unit (indicated by a broken line) standardized in a predetermined format, and includes an imaging optical system 100, a liquid crystal control circuit 123, an IG driver 124, motor drivers 125, 126, and 400.
It comprises a lens microcomputer 127 for controlling them, a video input terminal 128, and a lens mount and a contact block (not shown) standardized in the predetermined format.

Reference numeral 2 denotes a camera unit main body, which has a camera mount and a contact block (not shown) standardized in the predetermined format. The lens mount of the lens 1 and the camera mount are mechanically joined. It has a removable structure. When the lens mount is mounted on the camera mount, the contact blocks of the lens unit 1 and the camera unit 2 come into contact with each other, and the operation corresponding to the arrow 10, that is, the lens microcomputer 12
Communication of predetermined data is performed between the camera 7 and the camera microcomputer 208 according to a predetermined format, and power supply from the camera to the lens is performed via respective contact blocks of the camera and the lens.

Reference numeral 100 denotes a photographing optical system (indicated by a two-dot chain line). Reference numerals 107 and 112 denote total reflection mirrors rotatable around a predetermined axis, and are driven by the power unit 350 or the manual operation unit 380. In the present embodiment,
The power unit 350 employs a DC motor. However, the present invention is not limited to this, and may be a step motor, an ultrasonic motor, or the like.

Reference numerals 108, 113, and 115 denote one or a plurality of lens units having a negative refractive power.
A positive refraction lens group 19 includes one or a plurality of lenses. Reference numeral 110 denotes a prism which is a synthetic optical element having total reflection mirror surfaces 109 and 111. The prism 110 matches the light beams from the left and right total reflection mirrors 107 and 112 and guides one light beam toward a three-plate imaging unit 200 described later. I do.

Reference numerals 101, 103, 104 and 106 denote polarizing plates, and reference numerals 102 and 105 denote liquid crystal elements having a shutter function. The polarizing plates 101 and 103 are combined with the liquid crystal element 102, and when an electric field is applied to the liquid crystal element 102, a light beam passing therethrough is in a transmissive or non-transmissive state. The same applies to the combination of the polarizing plates 104 and 106 and the liquid crystal element 105.

In this embodiment, the liquid crystal elements 102,
Although 105 uses FLC, the present invention is not particularly limited to this, and a liquid crystal element such as TN or STN may be used. Further, the polarizing plates 101 and 103 and the polarizing plates 104,
106 may be fixed to the liquid crystals 102 and 105 by bonding or the like, or may be separately arranged.

The optical axes 4 and 5 of the left and right images are substantially in the same plane and substantially intersect at a predetermined position including the point at infinity, that is, converge. As described above, the total reflection mirror 10
7, 112 are rotatable around a predetermined axis, and by rotating in synchronization with each other, the convergence position can be changed, that is, the convergence angle can be changed. It is an indispensable function to change the convergence angle in order to capture a natural stereoscopic image.

Optical axes 4 and 5 and total reflection mirrors 107 and 112
The interval (base line length) of the intersection with the reflecting surface is not particularly limited in this embodiment, but is set to be around 63 mm for the time being. This is an average human pupil distance and is a consideration for capturing a natural stereoscopic image.

A stop 114 is a light amount adjusting means.
In the present embodiment, by arranging the stop 114 on the object side, it is possible to reduce the effective beam diameter of the front lens.

Reference numeral 120 denotes an IG meter, and reference numerals 121 and 122 denote step motors, to which the above-described IG driver 124 and motor drivers 125 and 126 are respectively connected. 108 and 113 are a first lens group, 115 is a fixed lens group, a lens 116 is a variator, a lens 11
Reference numeral 7 denotes a compensator, and a lens 119 is a lens group having a focusing function and is movable. Lens 11
The second lens group is composed of 5, 116, 117 and 119.

In this embodiment, the lenses 116 and 117 are arranged so as to be movable in the direction of the optical axis 6 in a mechanically interlocked manner by a cam cylinder 118, and the cam cylinder 118 is driven by a step motor 121 to rotate. Let it. The step motor 122 drives the lens 119.

However, the driving method is not limited to this, and the lens 11 can be used without using the cam barrel 118.
6, 117 may be individually driven by the driving means.
The drive is not particularly limited to a step motor, but may be an electromagnetic motor such as a DC motor, a solid motor such as an ultrasonic motor, an electrostatic motor, or the like.

The positions of the lenses 116, 117 and 119 in the direction of the optical axis 6 are detected by counting the drive pulses for driving the step motors 121 and 122 to convert the positions of the lenses.

However, the means for detecting the lens position is not particularly limited to this. For example, a variable resistance type, a capacitance type, or an optical type such as PSD or IRED may be used. good.

The 1G meter 120 drives the diaphragm 114 to adjust the amount of light. An ND filter (not shown) is arranged in the photographing optical system 100.

The zoom type of the present invention is a rear focus type. That is, the lenses 116, 117, and 119
When zooming, the lens microcomputer 127 performs drive control in conjunction with a predetermined relationship. However, the zoom type is not particularly limited to this.

The camera body 2 includes first, second, and third prisms (color separation prisms) 201,
02, 203, an image sensor (not shown) provided in each of them, amplifiers 204, 205, 206 connected corresponding to the image sensor, and amplifiers 204, 20
5, a signal processing circuit 207 connected to the signal processing circuit 207; a camera microcomputer 208 connected to the signal processing circuit 207; a zoom switch and an AF switch (not shown) connected to the camera microcomputer 208; And a finder (EVF) 3.

The signal processing circuit 207 includes a camera signal processing circuit 207a and an AF signal processing circuit 207b.
The output of the camera signal processing circuit 207a is output as a video signal, and the output of the camera microcomputer 208 is supplied to the lens microcomputer 127 of the lens unit 1.

In the three-plate type imaging section 200, the first, second, and third prisms 201, 202, and 203 separate the incident light imaged by the imaging optical system 100 into three primary colors.
The red component of the three primary colors is imaged on the image sensor of the first prism 201, the green component is imaged on the image sensor of the second prism 202, and the blue component is imaged on the image sensor of the third prism 203. It is imaged.

The subject image formed on each image pickup device is photoelectrically converted and converted into an electrical signal corresponding to an amplifier 20.
4, 205, 206. Amplifiers 204, 20
Each of the electric signals amplified to the optimum level by 5, 206 is converted into a standard television signal by the camera signal processing circuit 207a, output as a video signal, and supplied to the AF signal processing circuit 207b. .

The AF signal processing circuit 207b includes the amplifier 20
An AF evaluation value signal is generated using the signals of the four primary colors of 4, 205 and 206. The camera microcomputer 208 reads out the AF evaluation value signal generated by the AF signal processing circuit 207b using a data reading program stored in advance,
The data is transferred to the lens microcomputer 127. Lens microcomputer 12
Reference numeral 7 denotes a lens 1 based on the transferred AF evaluation value signal.
Focusing is performed by controlling the drive of the motor 19.

Next, details of the configuration of the imaging optical system 100 will be described with reference to FIG. In the figure, the same members as those in FIG. 1 are denoted by the same reference numerals. Polarizing plates 101, 10
3, 104 and 106 and the liquid crystals 102 and 105 are fixed to a fixing portion (not shown) on the apparatus main body side, and the total reflection mirror 1 is provided.
Reference numerals 07 and 112 are attached to a fixed portion of the front group base 300 (see FIG. 3) so that the convergence is varied by a drive mechanism (see FIG. 3) described later. First lens group 108, 113
Are fixed to lens barrels 151 and 152, respectively, and the lens barrels 151 and 152 are fixed to support plates 153 and 154 after being moved and adjusted in a direction parallel to the optical axes 4 and 5, respectively. Further, the support plates 153 and 154 are fixed to a common holding member 155 after being moved and adjusted in a direction perpendicular to the optical axes 4 and 5. The holding member 155 is fixed to the front group base 300.

The prism 110 having the total reflection mirror surfaces 109 and 111 and the stop 114 are fixed to the front group base 300. The fixed lens group 115 is fixed to a fixed cylinder 156.

The variator lens 116 and the compensator lens 117 are fixed to movable barrels 157 and 158, respectively, and the movable barrels 157 and 158 move in the optical axis 6 direction on guide bars 159 and 160 supported by the fixed barrel 156. Supported as possible. Further, the movable lens barrels 157 and 15
8 are formed with cam pins 161 and 162, respectively. The cam pins 161 and 162 are movably fitted into grooves in the direction of the optical axis 6 provided in the fixed cylinder 156, and the cam cylinder 11
8 is also movably fitted to the cam groove provided in the cam groove 8. With this configuration, the movable lens barrels 157 and 158
8 is driven to rotate by the stepping motor 121 with respect to the fixed cylinder 156, thereby being displaced in the direction of the optical axis 6 to perform focusing.

The lens 119 is fixed to a movable barrel 163, and the movable barrel 163 is supported by guide bars 159 and 160 so as to be movable in the optical axis 6 direction. Moving lens barrel 16
3 indicates that the cam cylinder 164 is fixed to the fixed cylinder 156 according to the relationship between the cam pin 165 and the cam groove provided in the cam cylinder 164.
Is moved in the direction of the optical axis 6 by being rotationally driven by the step motor 122, and focusing is performed.

As described above, the zoom type of the present invention is a rear focus type. That is, the variator lens 116, the compensator lens 117, and the lens 11
9 is driven and controlled in a predetermined relationship by the lens microcomputer 127 (see FIG. 1) when zooming.

Next, the total reflection mirror 1 of the photographing optical system 100
FIGS. 3 to 6 show details of the drive mechanism units 07 and 112.
This will be described with reference to FIG. In each drawing, the same members as those in FIGS. 1 and 2 are denoted by the same reference numerals. FIG. 3 is a front view of the inside of the stereoscopic image photographing apparatus viewed from the object side, and total reflection mirrors 107 and 112 disposed on the left and right, a first lens group 108,
113, and the power unit 3 of the total reflection mirrors 107 and 112
The arrangement positions such as 50 are shown.

The front group base 300 is a base part for assembling each part, and is a part formed by cutting or molding a metal or a molding material, and includes a lower bearing 300a, a lower bearing. 300b and the upper bearing 300c of the rotary bearing are integrally processed, and further, a gear shaft hole, a female screw portion for fixing each component, and the like are precisely processed.

In this embodiment, the rotary bearings 30
Although the Oa portion and the like are integrally formed with the front group base 300, the present invention is not limited to this configuration, and may be a separate assembly.

First, the total reflection mirrors 10 arranged on the left and right
7, 112 will be described. Total reflection mirror 107, 1
Numeral 12 is processed with the same dimensions, and is fixed to the mirror mounting plates 301 and 302 with an adhesive or the like. FIG.
As shown in FIG.
Three female screw holes are provided. Mirror base 30
5,306 are metal parts processed by press working, etc.
Screw through hole 30 slightly larger than the outer diameter of holding screw 303
5a and 306a, a drive lever portion 370, and rotary shaft holding holes 305b and 306b (see FIG. 4).
Screw through holes 305 of these mirror bases 305, 306
a, 306a, and insert the holding screw 303 into the compression spring 30.
4 and the holding screws 303 are screwed into the female screw holes provided in the mirror mounting plates 301 and 302, whereby the mirror bases 305 and 306 and the total reflection mirror 10 are mounted.
7, 112 are integrally fixed. Also, rotation shaft holding holes 305b, 3 provided in the mirror bases 305, 306
The rotating shaft 307 is inserted into the 06b and fixed with an adhesive or the like. The rotating shaft 307 is connected to the rotating bearing lower holding portion 30.
A rotatable unit is formed by being pivotally supported by the rotary shaft 0a and the rotary bearing 300b.

Next, the structure of a mechanism for controlling the convergence of the left and right optical axes will be described. As shown in FIG.
Reference numeral 50 denotes a unit component including a plurality of components. The unit includes a DC motor serving as a power source, a belt for transmitting power, a pulley, a torque limiter, a reduction gear, and the like, and automatically changes a convergence angle. Drive when you let it. The cam gear 351 is a part formed by cutting or molding a mold material or a metal material, and as shown in FIG. 6, a gear portion 351b for transmitting power and a cam for converting a rotational operation into a linear operation. The portion 351a is formed.
The gear portion 351b meshes with a gear provided in the power unit 350.

Also, as shown in FIG.
Is also mechanically connected to a convergence operation dial 354 included in an operation unit 380 (see FIG. 1) for manually operating the photographer when setting the convergence angle. The convergence operation dial 354 is disposed at a position where it does not hinder the photographing operation of the apparatus main body, and a drive transmission gear 354a is provided coaxially. The drive transmission gear 354a is a transmission gear 353
And the transmission gear 353 are the transmission gear 352 and the transmission gear 35
2 meshes with the gear portion 351b of the cam gear 351 respectively. The operation unit 380 includes a congestion operation dial 354,
Drive transmission gear 354a, transmission gear 353, transmission gear 35
2.

As shown in FIG. 6, a projection 361a provided on the upper side of the moving sleeve 361 is slidably fitted to the cam 351a provided on the cam gear 351. When the cam gear 351 rotates, the projection 361a is slidably fitted. The moving sleeve 361 moves in the direction of arrow C, that is, substantially parallel to the optical axis 6 (see FIG. 1). The moving sleeve 361 has an “H” shape (see FIG. 5), and has round holes at both ends thereof for the guide shaft 360 to penetrate. Guide shaft 360 is front group base 3
The movable sleeve 361 is slidable in the direction of arrow C with high precision with respect to the guide shaft 360 in accordance with the movement of the projection 361a. Since the moving sleeve 361 is supported on the guide shaft 360 at both ends thereof, the protrusion 361a of the moving sleeve 361 is formed.
Is prevented (see FIGS. 4 and 5).

Further, as shown in FIGS. 4 and 6, a projection 361b is provided on the opposite side of the movement sleeve 361 from the projection 361a. The projections 361b are provided on lever parts 370a, 370 provided on the mirror bases 305, 306.
70b, and contact leaf springs 390a, 390b
Is connected to the levers 370a, 370b by screws 391a,
391b, and by the urging force of the contact leaf spring,
The two lever portions 370a and 370b are always in contact with the protrusion 361b of the moving sleeve 361 without play.

The power unit 350, the cam gear 351, the moving sleeve 361, and the guide shaft 360 constitute a convergence angle displacing means. The moving sleeve 361 and the guide shaft 360 constitute a convergence angle adjusting unit.

The operation of changing the convergence angle between the cam gear 351 and the total reflection mirrors 107 and 112 in the above configuration will be described. By driving the power unit 350 or operating the convergence operation dial 354, the power is transmitted and the cam gear 351 rotates. At this time, the convergence angle displacement means including the power unit 350 and the convergence operation dial 3
Whichever of the convergence angle adjusting means including 54 is driven,
The other also works synchronously. By this operation, the cam portion 351a
When the moving sleeve 361 moves substantially in parallel with the optical axis 6 due to the relationship between the moving sleeve 361 and the protrusion 361a of the moving sleeve 361, the lever portions 370 of the mirror bases 305 and 306 abutting on the protrusion 361b of the moving sleeve 361 rotate the rotating shaft. With the rotation about the mirror 307, the mirror base 305,
The 306 is rotated, and the left and right total reflection mirrors 107 and 112 are synchronously displaced at the same rotation speed. This displacement is symmetrical with respect to the line including the optical axis 6, and the displacement can accurately change the convergence angle so that the convergence position of the optical axes 4 and 5 is on the subject. In particular, by operating the convergence operation dial 354, it can be arbitrarily adjusted so as to obtain a desired image.

With respect to the optical device having the configuration described above,
A method of setting the light receiving surface position of the light receiving element 6 when performing the assembly adjustment will be described with reference to FIG. When observing the light receiving surface of the light receiving element 6 using an autocollimator as an observation tool, on the autocollimator side, the illumination light LC is linearly polarized light, and its polarization direction is perpendicular to the optical axis. Set to be parallel to the paper. Furthermore,
As shown in FIG. 20, the polarizing beam splitter 21 and the second
１ ／ wavelength plate 24 is inserted between the beam splitter 16 and the beam splitter 16. At this time, the optical axis involved in the polarization property of the half-wave plate 24 is set in a plane perpendicular to the optical axis so that the illumination light LC
Are set so as to form an angle of 45 degrees with respect to the polarization direction.

When the illumination light LC is made incident on the optical device according to the present embodiment under the above-described setting conditions, most of the light component of the incident light is applied to the bonding surface of the polarizing beam splitter 21 by the second surface. Like the joint surface of the beam splitter 16, the light passes through the second dielectric multilayer film 15. This transmitted light is ２
When the wave plate 24 is emitted, its polarization direction is rotated by 90 degrees in a plane perpendicular to the optical axis to become linearly polarized light having a polarization direction perpendicular to the plane of FIG. 20, and the second beam splitter 16
Incident on.

The linearly polarized light having a polarization direction perpendicular to the paper surface of FIG. 20 is 80% or more at the joint surface of the second beam splitter 16 because the light reflecting surfaces of the rectangular aluminum surface 2 and the other surface are both 80% or more. Most of the light components of the illumination light LC incident on the second beam splitter 16 are reflected. Therefore, the light reflected from the entire surface of the spread aluminum pattern is condensed by the lens group 17 having a positive power and irradiates the light receiving surface of the light receiving element 6 without causing a diffraction phenomenon on each rectangular aluminum surface. Further, the irradiation light LC to the light receiving element 6 is reflected on the light receiving surface thereof, travels along the optical path returning on the outward path, and is received on the observation side of the autocollimator.

Therefore, the second beam splitter 16
Most of the light components incident on the surface contribute to the image formation, so that the image on the light receiving surface can be observed. Then, a just focus position of the light receiving surface of the light receiving element 6 is searched, and a defocus is performed by a predetermined amount from the position in a direction approaching the lens group 17 having positive power. The position can be set. After this operation is completed, the half-wave plate 24 is removed from the optical device.

The light receiving state in practical use of the optical device assembled by setting the light receiving surface position of the light receiving element 6 as described above will be described with reference to FIG.

[0056]

As described above, according to the present invention,
The convergence angle displacing means for automatically changing the convergence angle, and the convergence angle adjusting means having an operation unit for manually changing the convergence angle, the automatic convergence control of the convergence angle displacement means, the device, This allows you to focus on the shooting only, freeing you from the hassle of the operation, and you can adjust the convergence angle arbitrarily with the operation unit during the shooting, so you can shoot the image as desired by the photographer can do.

Further, since the operation section of the convergence angle adjusting means is disposed at a position which does not hinder the photographing operation of the apparatus main body, the convergence angle can be arbitrarily adjusted with excellent operability while observing the photographed image. be able to.

Further, since the convergence angle changing means and the convergence angle adjusting means are arranged close to each other, the whole apparatus can be made compact.

[Brief description of the drawings]

FIG. 1 is a block diagram of a stereoscopic image photographing apparatus showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a configuration of a photographing optical system in the stereoscopic image photographing device of FIG.

FIG. 3 is a front view showing an internal configuration of the stereoscopic image photographing apparatus of FIG. 2 as viewed from an object side.

FIG. 4 is a front view showing left and right total reflection mirrors and a driving mechanism thereof.

FIG. 5 is a bottom view of the left and right total reflection mirrors and the drive mechanism thereof in FIG.

FIG. 6 is a partial view of the total reflection mirror and its drive mechanism of the stereoscopic image photographing apparatus of FIG.

[Explanation of symbols]

 Reference Signs List 1 interchangeable lens unit 2 camera unit 100 photographing optical system 102, 105 shutter (liquid crystal element) 107, 112 total reflection mirror 108, 113 first lens group 110 synthetic optical element 114 aperture 115, 118, 117, 119 second lens group 300 Front group base 350 Power unit 351 Cam gear 354 Congestion operation dial 360 Guide shaft 361 Moving sleeve

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[Procedure amendment]

[Submission date] June 28, 2000 (2006.2.
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0051

[Correction method] Deleted

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0052

[Correction method] Deleted

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0053

[Correction method] Deleted

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0054

[Correction method] Deleted

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0055

[Correction method] Deleted

Claims (6)

[Claims] 1. Left and right shutters, left and right total reflection mirrors for reflecting light beams from the left and right shutters in directions intersecting each other, and left and right first lens groups for condensing light beams from the total reflection mirrors. A combining optical element for matching the optical axes of the left and right first lens groups, a second lens group arranged so that one light flux obtained by the combining optical element forms an image on an image plane, A diaphragm disposed between the combining optical element and the second lens group, and convergence angle displacement means for automatically changing the convergence angle of the left and right optical axes according to the distance to the subject; A stereoscopic video photographing apparatus for photographing, comprising a convergence angle adjusting means for manually adjusting the convergence angle. 2. The stereoscopic video photographing apparatus according to claim 1, wherein the convergence angle displacement unit and the convergence angle adjustment unit are configured to be mechanically driven in synchronization. 3. The stereoscopic image photographing apparatus according to claim 1, wherein the convergence angle changing unit and the convergence angle adjusting unit are arranged close to each other. 4. The apparatus according to claim 1, wherein the convergence angle adjusting means has an operation unit for manual adjustment.
Or the stereoscopic image photographing device according to 3. 5. The three-dimensional image photographing apparatus according to claim 4, wherein the operation unit is disposed at a position that does not hinder the photographing operation of the apparatus main body. 6. The convergence angle displacing means and the convergence angle adjusting means synchronously rotate the left and right total reflection mirrors at the same rotational speed.
The stereoscopic image photographing device according to the above.