WO2012056679A1

WO2012056679A1 - 3d image display system and 3d image display device

Info

Publication number: WO2012056679A1
Application number: PCT/JP2011/005940
Authority: WO
Inventors: 大田　恭義; 孝夫桑原; 岡田　宏一
Original assignee: 富士フイルム株式会社
Priority date: 2010-10-29
Filing date: 2011-10-24
Publication date: 2012-05-03
Also published as: JP2012098402A

Abstract

[Problem] To make it possible to use a normal monitor, which until now had been used by a user, as a combined-use monitor for displaying one of either a right eye image or a left eye image in a 3D image display system for displaying a 3D image using two images consisting of a right eye image and a left eye image. [Solution] To use a first monitor (41), which had been used by the user, for displaying a left eye image and also for displaying a normal image, to position on the right side of the first monitor (41) a 3D monitor (43), to which a semi-transparent mirror (44) is attached, and to also use the 3D monitor (43) for displaying the right eye image.

Description

Stereoscopic image display system and stereoscopic image display device

The present invention relates to a stereoscopic image display system and a stereoscopic image display device that display a stereoscopic image using two images, a right-eye image and a left-eye image.

Conventionally, it is known that stereoscopic viewing can be performed using parallax by displaying a combination of two images, a right-eye image and a left-eye image. Such a stereoscopically viewable image (hereinafter referred to as a stereoscopic image or a stereo image) is generated based on a plurality of images having parallax obtained by photographing the same subject from different positions.

And the generation of such stereoscopic images is used not only in the fields of digital cameras and televisions, but also in the field of radiographic imaging. That is, the subject is irradiated with radiation from different directions, the radiation transmitted through the subject is detected by the radiation image detector, and a plurality of radiation images having parallax are obtained, and based on these radiation images A stereoscopic image is generated. And by generating a stereoscopic image in this way, a radiographic image with a sense of depth can be observed, and a radiographic image more suitable for diagnosis can be observed. (For example, see Patent Document 1)

JP 2010-110571 A JP 2003-005130 A JP 05-285129 A

By the way, as a stereoscopic image display device for displaying a stereoscopic image as described above, it is provided with two display screens arranged side by side and a half mirror, and displays a right eye image and a left eye image on each display screen. There has been proposed a monitor that displays a stereoscopic image by optically combining a right-eye image and a left-eye image with a half mirror. (For example, see Patent Documents 2 and 3)
Since the display screen in the stereoscopic image display apparatus of this type can be the same as that for displaying a normal image, a normal monitor that has been used by the user up to now can be used as a right-eye image or If one of the left-eye images can be used as a display, a stereoscopic image display system for displaying a stereoscopic image can be constructed with little additional investment. A system is desired.

In view of the above circumstances, the present invention aims to provide a stereoscopic image display system that displays a stereoscopic image using two images, a right-eye image and a left-eye image, that meets the above-mentioned demand. And

A stereoscopic image display system according to the present invention is a stereoscopic image display system capable of displaying both a stereoscopic image and a normal image using two images of a right-eye image and a left-eye image. A stereoscopic image display device for displaying one of the left-eye images, a half mirror that optically combines the right-eye image and the left-eye image so as to be viewed as a stereoscopic image, and a stereoscopic image And a dual-purpose display device for displaying the other image of the right-eye image or the left-eye image and a normal image, and the half mirror is in the vertical direction of the stereoscopic image display device. Near the display surface of the stereoscopic image display device from an intermediate position between the display surface of the stereoscopic image display device and the display surface of the dual-purpose display device, with the vertical side of the half mirror as the rotation axis. And it is characterized in that it freely attached to the display device for stereoscopic picture rotated to.

The stereoscopic image display system of the present invention includes a half mirror position detecting means for detecting that the half mirror is in the vicinity of the display surface of the stereoscopic image display device, and the half mirror in the vicinity of the display surface of the stereoscopic image display device. In some cases, it is preferable to include display control means for displaying a normal image on the dual-purpose display device.

Also, the display resolution of the stereoscopic image display device need not be the same as the display resolution of the dual-purpose display device, and may be lower than the display resolution of the dual-purpose display device.

Also, two display devices for displaying a normal image and a stereoscopic image display device may be provided, and either one of the two display devices may be used as a dual-purpose display device.

The stereoscopic image display device of the present invention is a stereoscopic image display used for a stereoscopic image display system capable of displaying both a stereoscopic image using a right eye image and a left eye image and a normal image. An image display unit for displaying one of a right-eye image and a left-eye image, and a half that optically combines the right-eye image and the left-eye image so as to be seen as a stereoscopic image. The half mirror is attached to the edge portion extending in the vertical direction of the image display unit so as to be rotatable about one side in the vertical direction of the half mirror as a rotation axis.

According to the stereoscopic image display system of the present invention, in a stereoscopic image display system capable of displaying both a stereoscopic image and a normal image using two images of a right-eye image and a left-eye image, a user conventionally uses Can be used as a dual-purpose display device that combines the display of one of the right-eye image and the left-eye image and the normal image. Displays a stereoscopic image display device to which a half mirror that optically synthesizes a right-eye image and a left-eye image so as to be viewed as a stereoscopic image is displayed as the right-eye image or the other of the left-eye images. As a result, it is possible to display stereoscopic images by combining them so that a stereoscopic image display system can be easily displayed with little investment. It is possible to build a beam.

In the stereoscopic image display system of the present invention, half mirror position detecting means for detecting that the half mirror is in the vicinity of the display surface of the stereoscopic image display device, and the half mirror in the vicinity of the display surface of the stereoscopic image display device. In some cases, if the dual-purpose display device is provided with a display control means for displaying a normal image, the image displayed on the dual-purpose display device can be automatically switched with the movement of the half mirror.

In addition, the display resolution of the stereoscopic image display device does not have to be the same as the display resolution of the dual-purpose display device. If the display resolution is lower than that of the dual-purpose display device, the cost of the stereoscopic image display device can be reduced. it can.

For example, a breast imaging and display system has conventionally been provided with two display devices for displaying normal images, and displaying a right breast radiation image and a left breast radiation image on a dedicated display device. ing. As described above, even in a system having two display devices for displaying a normal image, if a stereoscopic image display device is combined and one of the two display devices is used as a dual-purpose display device. Therefore, it is possible to construct a stereoscopic image display system for easily displaying a stereoscopic image with a small investment.

The stereoscopic image display device of the present invention is a stereoscopic image display used for a stereoscopic image display system capable of displaying both a stereoscopic image using a right eye image and a left eye image and a normal image. An apparatus for displaying a stereoscopic image by optically synthesizing an image display unit for displaying one of a right-eye image and a left-eye image and a right-eye image and a left-eye image. This half-view image display is provided with a mirror, and the half mirror is attached to the edge portion extending in the vertical direction of the image display unit so as to be rotatable about the vertical side of the half mirror as a rotation axis. Stereoscopic images for easily displaying stereoscopic images with a small amount of investment by combining a device with a display device that has been used by the user or an inexpensive display device that has been sold in the past. It can be build indicate system.

1 is a schematic configuration diagram of a breast stereoscopic image photographing display system using a stereoscopic image display system according to an embodiment of the present invention. The figure which looked at the arm part of the stereoscopic vision image photographing display system for breasts shown in FIG. 1 from the right direction of FIG. 1 is a block diagram showing a schematic configuration inside a computer of the breast stereoscopic image capturing and displaying system shown in FIG. Perspective view of the stereoscopic image display system The top view which shows the state at the time of the stereoscopic image display of the said stereoscopic vision image display system The top view which shows the state at the time of the normal image display of the said stereoscopic vision image display apparatus The top view which shows the state at the time of the stereoscopic image display of the other stereoscopic vision image display system

Hereinafter, a stereoscopic image capturing and displaying system for breasts using a stereoscopic image display system according to an embodiment of the present invention will be described with reference to the drawings.

First, a schematic configuration of the whole breast stereoscopic image photographing / displaying system according to the present embodiment will be described. FIG. 1 is a schematic configuration diagram of a breast stereoscopic image photographing / displaying system using the stereoscopic image displaying system of the present embodiment, and FIG. 2 is a diagram illustrating an arm portion of the breast stereoscopic image photographing / displaying system shown in FIG. FIG. 3 is a block diagram showing a schematic configuration inside the computer of the stereoscopic image capturing and displaying system for breast shown in FIG.

As shown in FIG. 1, a breast stereoscopic imaging and displaying system 1 according to the present embodiment includes a breast imaging apparatus 10, a computer 8 connected to the breast imaging apparatus 10, and a stereoscopic connected to the computer 8. A visual image display system 40 and an input unit 7 are provided.

As shown in FIG. 1, the mammography apparatus 10 includes a base 11, a rotary shaft 12 that can move in the vertical direction (Z direction) with respect to the base 11, and can rotate. The arm part 13 connected with the base 11 is provided. FIG. 2 shows the arm 13 viewed from the right direction in FIG.

The arm section 13 has an alphabet C shape, and a radiation table 16 is attached to one end of the arm section 13 so as to face the imaging table 14 at the other end. The rotation and vertical movement of the arm unit 13 are controlled by an arm controller 31 incorporated in the base 11.

Inside the imaging table 14 are provided a radiation image detector 15 such as a flat panel detector and a detector controller 33 that controls reading of a charge signal from the radiation image detector 15. Further, inside the imaging table 14, a charge amplifier that converts the charge signal read from the radiation image detector 15 into a voltage signal, a correlated double sampling circuit that samples the voltage signal output from the charge amplifier, A circuit board provided with an AD conversion unit for converting a voltage signal into a digital signal is also installed.

In addition, the photographing table 14 is configured to be rotatable with respect to the arm unit 13, and even when the arm unit 13 rotates with respect to the base 11, the direction of the photographing table 14 is fixed to the base 11. can do.

The radiation image detector 15 can repeatedly perform recording and reading of a radiation image, and may use a so-called direct type radiation image detector that directly receives radiation and generates charges. Alternatively, a so-called indirect radiation image detector that converts radiation once into visible light and converts the visible light into a charge signal may be used. As a radiation image signal readout method, a radiation image signal is read out by turning on / off a TFT (thin film transistor) switch, or by irradiating reading light. It is desirable to use a so-called optical readout system from which a radiation image signal is read out, but the present invention is not limited to this, and other systems may be used.

A radiation source 17 and a radiation source controller 32 are accommodated in the radiation irradiation unit 16. The radiation source controller 32 controls the timing of irradiating radiation from the radiation source 17 and the radiation generation conditions (tube current, tube voltage, time, etc.) in the radiation source 17.

Further, in the central portion of the arm portion 13, a compression plate 18 that is disposed above the imaging table 14 and presses and compresses the breast M, a support portion 20 that supports the compression plate 18, and a support portion 20 that extends in the vertical direction. A moving mechanism 19 for moving in the (Z direction) is provided. The position of the compression plate 18 and the compression pressure are controlled by the compression plate controller 34.

The computer 8 includes a central processing unit (CPU), a storage device such as a semiconductor memory, a hard disk, and an SSD. The control unit 8a, the data storage unit 8b, and the image processing unit shown in FIG. Part 8c is configured.

The controller 8a outputs predetermined control signals to the various controllers 31 to 34 to control the entire system. A specific control method will be described in detail later. The data storage unit 8b stores radiation image data and the like for each imaging angle acquired by the radiation image detector 15. The image processing unit 8c is for performing various image processing.

The input unit 7 is composed of a pointing device such as a keyboard and a mouse, for example, and is used to accept input of a movement operation of a three-dimensional cursor, shooting conditions, operation instructions, and the like.

Next, the stereoscopic image display system 40 will be described in detail. FIG. 4 is a perspective view of the stereoscopic image display system of the present embodiment, FIG. 5 is a top view showing a state of the stereoscopic image display system when displaying a stereoscopic image, and FIG. 6 is a normal view of the stereoscopic image display device. It is a top view which shows the state at the time of image display.

The stereoscopic image display system 40 can display both a stereoscopic image and a normal image using two images of a right eye image and a left eye image. As shown in FIG. 41, a second monitor 42, and a stereoscopic monitor 43 to which a half mirror 44 that optically synthesizes the right-eye image and the left-eye image so as to be seen as a stereoscopic image is attached. The first monitor 41, the second monitor 42, and the stereoscopic viewing monitor 43 (stereoscopic image display device) are each independently configured and are individually connected to the computer 8.

Conventionally, an image capturing and displaying system for breasts is provided with two monitors, and displays a right breast radiation image and a left breast radiation image on dedicated monitors. In the stereoscopic image display system 40 of the present embodiment, two conventional monitors can be used as the first monitor 41 and the second monitor 42 of the stereoscopic image display system 40.

In the present embodiment, the first monitor 41 among them is used as a dual-purpose display device for displaying a left-eye image and a normal image constituting a stereoscopic image.

The stereoscopic monitor 43 is for displaying a right-eye image that constitutes a stereoscopic image. As shown in FIG. 5, the stereoscopic monitor 43 is positioned on the right side of the first monitor 41 with the display surface 41 a of the first monitor 41. It is arranged at a position where the angle formed with the display surface 43a of the visual monitor 43 is less than 180 °.
The angle is not particularly limited as long as it is less than 180 °, but is preferably about 80 ° to 120 °, and most preferably 90 °.

The display resolution of the stereoscopic monitor 43 is preferably the same as the display resolution of the dual-purpose display device. However, even when the display resolution of the stereoscopic monitor 43 and the display resolution of the dual-purpose display device are different, stereoscopic display is possible. Since it can be done, it is not necessarily the same. For example, if the display resolution is lower than that of the dual-purpose display device, the cost of the stereoscopic monitor 43 can be reduced.

A half mirror 44 is attached to the left side edge portion extending in the vertical direction of the image display unit of the stereoscopic monitor 43 via a hinge 45 so as to be rotatable about one side in the vertical direction as a rotation axis.
Thereby, the half mirror 44 can be rotated from an intermediate position between the display surface 41 a of the first monitor 41 and the display surface 43 a of the stereoscopic monitor 43 to the vicinity of the display surface 43 a of the stereoscopic monitor 43.

A sensor (not shown) that detects that the half mirror 44 is in the vicinity of the display surface 43 a of the stereoscopic monitor 43 is provided in the hinge 45, and the half mirror 44 displays on the stereoscopic monitor 43 by this sensor. When it is detected that it is in the vicinity of the surface 43a, the fact is notified to the computer 8 from the sensor.

In the computer 8, a driver (not shown) that displays a normal image on the first monitor 41 and the second monitor 42 when the sensor detects that the half mirror 44 is in the vicinity of the display surface 43a. Control means) is installed.

The polarization direction of the display light in the stereoscopic monitor 43 (for right-eye image display) is configured to be orthogonal to the polarization direction of the display light in the first monitor 41 (for left-eye image display). The user wears polarizing glasses having a right-eye polarizing lens for observing the right-eye image and a left-eye polarizing lens for observing the left-eye image, and observes the left-eye image and the right-eye image with the left and right eyes, respectively. Visual images can be observed.

In the stereoscopic image display system 40, when displaying a stereoscopic image, the half mirror 44 is placed between the display surface 41a of the first monitor 41 and the display surface 43a of the stereoscopic monitor 43 as shown in FIG. Move to be located at.

The half mirror 44 may be moved manually by the user, or an input unit such as a switch for receiving an instruction input for stereoscopic image display is provided in the stereoscopic monitor 43, and an instruction from the input unit is provided. The image may be automatically moved based on the image data, or may be automatically moved based on the radiographic image signal or the control signal input from the computer 8 to the stereoscopic monitor 43.

Observation of the stereoscopic image displayed on the stereoscopic image display system 40 can be performed from either the right side or the left side in FIG. 5, but here, the mechanism of the stereoscopic image display will be described as observing from the right side. . As shown in FIG. 5, when a stereoscopic image is observed from the right side of the stereoscopic image display system 40, the right-eye image displayed on the display surface 43 a of the stereoscopic monitor 43 is reflected by the half mirror 44, and the first The left-eye image displayed on the display surface 41a of the monitor 41 is transmitted through the half mirror 44. As a result, the right-eye image and the left-eye image are optically combined and displayed as a stereoscopic image. When observing a stereoscopic image from the left side of the stereoscopic image display system 40, the same stereoscopic image as that when observing the stereoscopic image from the right side is displayed only by reversing the reflected image and the transmitted image. Is done.

In the above description, the right-eye image is displayed on the stereoscopic monitor 43 disposed on the right side, and the left-eye image is displayed on the first monitor 41 disposed on the left side. However, the left-eye image and the first monitor are displayed on the stereoscopic monitor 43. Even if the image for the right eye is displayed on 41, the stereoscopic image can be displayed in exactly the same way.

In the stereoscopic image display system 40, when displaying a normal image, the half mirror 44 is moved to the vicinity of the display surface 43a of the stereoscopic monitor 43 as shown in FIG. Here, the normal image includes not only a two-dimensional image other than the right-eye image and the left-eye image but also a case where the right-eye image and the left-eye image are individually observed as a two-dimensional image instead of a stereoscopic image.

The movement of the half mirror 44 may be manually performed by the user, or an input unit such as a switch for receiving an instruction input for normal image display is provided in the stereoscopic monitor 43, and based on an instruction from the input unit. It may be automatically moved, or may be automatically moved based on a radiographic image signal or a control signal input from the computer 8 to the stereoscopic monitor 43.

Next, the operation of the breast stereoscopic image capturing and displaying system according to this embodiment will be described.

First, the operation during shooting will be described.

First, the breast M is installed on the imaging table 14, and the breast M is compressed by the compression plate 18 with a predetermined pressure.

Next, after various imaging conditions including a combination of an angle formed by two different imaging directions (hereinafter referred to as a convergence angle θ) and an imaging angle θ ′ constituting the convergence angle θ are input in the input unit 7, An instruction to start shooting is input.

Then, when an instruction to start photographing is given at the input unit 7, a stereoscopic image of the breast M is photographed. Specifically, first, the control unit 8 a outputs information about the convergence angle θ and the imaging angle θ ′ constituting the convergence angle θ to the arm controller 31. In the present embodiment, θ = 4 ° is set as information on the convergence angle θ at this time, and a combination of θ ′ = ± 2 ° is set as a combination of the imaging angles θ ′ constituting the convergence angle θ. However, the present invention is not limited to this, and the photographer can set an arbitrary convergence angle θ at the input unit 7.

The arm controller 31 receives the information of the imaging angle θ ′ output from the control unit 8a, and the arm controller 31 first uses the arm to capture a radiographic image for the right eye based on the information of the imaging angle θ ′. The controller 13 outputs a control signal with an imaging angle θ ′ that is inclined + 2 ° with respect to a direction perpendicular to the detection surface 15a.

In response to the control signal output from the arm controller 31, the arm unit 13 rotates to a position of + 2 °. Subsequently, the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and readout of the radiation image signal.
In accordance with this control signal, radiation is emitted from the radiation source 17, and a radiation image obtained by photographing the breast M from the direction in which the imaging angle θ ′ is + 2 ° is detected by the radiation detector 15. Is read and stored in the data storage unit 8b of the computer 8.

Subsequently, first, in order to capture a radiographic image for the left eye, a control signal that outputs an imaging angle θ ′ in which the arm unit 13 is inclined by −2 ° with respect to a direction perpendicular to the detection surface 15a is output.

In response to the control signal output from the arm controller 31, the arm unit 13 rotates to a position of -2 °. Subsequently, the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and readout of the radiation image signal.
In accordance with this control signal, radiation is emitted from the radiation source 17, and a radiation image obtained by photographing the breast M from the direction in which the imaging angle θ ′ is −2 ° is detected by the radiation detector 15. The signal is read out and stored in the data storage unit 8b of the computer 8.

Next, the operation when displaying a stereoscopic image will be described.

First, when displaying a stereoscopic image on the stereoscopic image display system 40, two radiological image signals of a right eye radiological image and a left eye radiological image stored in the data storage unit 8b of the computer 8 are received from the data storage unit 8b. After the readout, the right-eye radiological image signal is transmitted to the stereoscopic monitor 43 and the left-eye radiographic image signal is transmitted to the first monitor 41, and each image is displayed on the two monitors.

In this state, as shown in FIG. 5, if the half mirror 44 is moved so as to be positioned between the display surface 41 a of the first monitor 41 and the display surface 43 a of the stereoscopic monitor 43, the stereoscopic image is displayed. Can be observed.

As shown in FIG. 6, when the half mirror 44 is moved to the display surface 43 a of the stereoscopic monitor 43, the half mirror 44 is near the display surface 43 a of the stereoscopic monitor 43 by a sensor (not shown) in the hinge 45. Is detected, and this is notified from the sensor to the computer 8.

Upon receiving this notification, the control unit 8a of the computer 8 displays a normal image on the first monitor 41 and the second monitor 42. The normal image to be displayed here is a two-dimensional image, including a two-dimensional image for observing the right-eye radiographic image and the left-eye radiographic image individually, and what kind of image is displayed based on an instruction from the user. May be.

As described above, as the first monitor 41 (combined display device), a monitor conventionally used by the user is used, and the stereoscopic monitor 43 (stereoscopic image display device) to which the half mirror 44 is attached. Since a stereoscopic image can be displayed by combining the two, it is possible to construct a stereoscopic image display system 40 for easily displaying a stereoscopic image with little investment.

The preferred embodiment of the present invention has been described above. However, the present invention is not limited to the above embodiment. For example, the half mirror 44 is attached to the stereoscopic monitor 43 (stereoscopic image display device). The position may be the right side edge instead of the left side edge. In this case, the stereoscopic monitor 43 may be disposed on the left side of a conventional monitor (combined display device).

Further, the size, aspect ratio, and display resolution of the display surface 43a of the stereoscopic monitor 43 (stereoscopic image display device), and the size, aspect ratio, and display of the display surface of a conventional monitor (combined display device). The resolution is not necessarily the same.

For example, as shown in FIG. 7, the display resolution (for example, a dual-purpose display device) of a conventional monitor 46 (for example, 1600 × 1200 dots) is compared with the display resolution (for example, 1600 × 1200 dots) of the stereoscopic monitor 43 (stereoscopic image display device). 3200 × 1200 dots) is horizontally long, when displaying a stereoscopic image, the right-eye image is displayed on the stereoscopic monitor 43 (stereoscopic image display device), and the conventional monitor 46 (combined display device) is displayed. )), If the left-eye image is displayed using only the area corresponding to the stereoscopic monitor 43, that is, the right half of the display area (1600 × 1200 dots from the right side), the stereoscopic image is displayed without any problem. A visual image can be displayed.

In addition, the attachment of the half mirror is not limited to being performed via a hinge, but from an intermediate position between the display surface of the stereoscopic image display device and the display surface of the dual-purpose display device with one side in the vertical direction of the half mirror as a rotation axis. Any mechanism that can rotate the half mirror to the vicinity of the display surface of the stereoscopic image display device may be used.

In addition, as an embodiment of the stereoscopic image display system of the present invention, an example in which the stereoscopic image display system for breasts is combined is shown, but the present invention is limited to the stereoscopic image display system for breasts. Instead, it can be combined with any system, for example, a radiographic imaging device that images the chest, head, and the like.

Of course, in addition to the above, various improvements and modifications may be made without departing from the scope of the present invention.

Claims

A stereoscopic image display system capable of displaying both a stereoscopic image and a normal image using two images of a right-eye image and a left-eye image,
A stereoscopic image display device for displaying one of the right-eye image and the left-eye image;
A half mirror that optically synthesizes the right-eye image and the left-eye image so as to appear as a stereoscopic image;
The stereoscopic display device is arranged side by side, and includes a dual-purpose display device for displaying the other image and the normal image of the right-eye image or the left-eye image,
The display surface of the stereoscopic image display device and the dual-purpose display device with the one side in the vertical direction of the half mirror as a rotation axis at an end portion extending in the vertical direction of the stereoscopic image display device. A stereoscopic image display system, wherein the stereoscopic image display system is attached to the stereoscopic image display device so as to be rotatable from an intermediate position to the display surface of the stereoscopic image display device.
Half mirror position detecting means for detecting that the half mirror is in the vicinity of the display surface of the stereoscopic image display device;
2. The stereoscopic image according to claim 1, further comprising display control means for displaying a normal image on the dual-purpose display device when the half mirror is in the vicinity of the display surface of the stereoscopic image display device. Display device.
3. The stereoscopic image display system according to claim 1, wherein a display resolution of the stereoscopic image display device is lower than a display resolution of the dual-purpose display device.
Two display devices for displaying normal images;
The stereoscopic image display device,
The stereoscopic image display system according to any one of claims 1 to 3, wherein any one of the two display devices is used as the dual-purpose display device.
A stereoscopic image display device used for a stereoscopic image display system capable of displaying both a stereoscopic image and a normal image using two images of a right-eye image and a left-eye image,
An image display unit for displaying one of the right-eye image and the left-eye image;
A half mirror that optically synthesizes the right-eye image and the left-eye image so as to appear as a stereoscopic image;
The stereoscopic image display device, wherein the half mirror is rotatably attached to an end side portion extending in a vertical direction of the image display portion with one side of the half mirror in the vertical direction as a rotation axis.