JP3697763B2 - Image display system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an image display system, for example, a binocular head-fixed realistic image display system used for personal image appreciation.
[0002]
[Prior art]
As a conventional binocular head-fixed image display system, a so-called simulator system is known in which a presentation image is generated by an image generation unit in the left and right eyes to allow a user to experience various things.
[0003]
For example, an image produced by computer graphics or the like is viewed with a binocular head-fixed image display device, and the presence is as if it exists in a virtual space in the image (so-called virtual reality) Is configured to make the user experience.
[0004]
Such a display device has left and right display units each displaying an image, and a user views a virtual image of the images on the left and right display units through the left and right lens systems. In other words, the image is fixedly presented as a virtual image at a certain distance in front of the user, and a three-dimensional image is displayed by left and right binocular parallax.
[0005]
In general, attitude detectors are commercially available. This incorporates a plurality of small sensors, and information such as horizontal rotation, vertical rotation, and tilt can be extracted with an electrical signal. This posture detector is used as a head movement detector.
[0006]
As described above, in the conventional image display system, since the presentation image is given to the fixed position in front of the user (that is, any image is presented at the fixed position), the presence of the presentation image is realistic. There is a problem that the user is uncomfortable and the user feels uncomfortable.
[0007]
Further, as shown in FIG. 19 (in the case of a long distance) and FIG. 20 (in the case of a short distance), the image display device used in the conventional image display system is a virtual image due to binocular parallax between the left and right eyes 50 and 51. Since the distance 52 and the distance 53 of the virtual image presented to the user are different (that is, to view the image in a state where the distance 52 of the image due to binocular parallax and the distance 53 of the presented image are different), There have also been problems such as eye strain of the user, reduced visual acuity, general fatigue, and headaches.
[0008]
[Problems to be solved by the invention]
The object of the present invention is to realize a realistic presentation image, increase the sense of immersion, and reduce the user's eye strain etc. by presenting the user with an image that looks like a real object. There is to do.
[0009]
[Means for Solving the Problems]
  That is, the present inventionThe synchronization of the right-eye image signal generating means and the left-eye image signal generating means is maintained.  Independently present images to the left and right eyes based on head movement signals  An image generation unit for generating an image signal to be
    A virtual image distance signal generation unit that generates a virtual image distance signal in conjunction with the presented image by the image signal  When,
    A pair of display units and respective lens systems for images displayed on these display unitsWhen,  Adjusting means capable of moving the lens system in accordance with the distance between the pupils of the userAndAnd said  Position of the virtual image to be displayed and both eyes based on the virtual image distance signal linked to the image to be displayed by the image signal  Virtual image distance control means for matching the image position due to parallax,Image display device configured to observe a virtual image obtained through a lens systemWhen,
    Head motion is detected, and head motion signals are sent to the image generator and the virtual image distance signal generator.  Sending head movement detector
Composed ofImage displaysystemIt is related to.
[0010]
  The present invention also provides:It is placed at the same interval as the user's pupil interval, and images are provided independently to the left and right eyes.  It has a right-eye camera and a left-eye camera that generate image signals to be displayed, and a right-eye camera and a left-eye camera  The camera rotates in the opposite direction by the same angle, and the head movement signal  A camera direction table having means for changing the camera direction table direction based on
    Determined by focal length of right-eye camera, focal length of left-eye camera, or distance measurement means  A virtual image distance signal generation unit that generates a virtual image distance signal based on the distance of the target object,
    A pair of display units and respective lens systems for images displayed on these display unitsWhen,  Adjusting means capable of moving the lens system in accordance with the distance between the pupils of the userAndAnd said  The position of the presented virtual image based on the virtual image distance signal based on the distance of the object and the image by binocular parallax  Virtual image distance control means for matching the image position,An image display device configured to observe a virtual image obtained through the lens system;,
    Head movement is detected, and the head movement signal is generated as the image signal generator and the virtual image distance signal generator.  A head movement detector to be sent to the adult
FromA configured image display system is also provided.
[0011]
  According to the image display system of the present invention, since the virtual image distance is continuously variable by the virtual image distance control means for matching the position of the virtual image to be presented to the user and the image position by the parallax, it is possible to present with a sense of presence. By realizing an image and increasing an immersive feeling, and presenting an image as if a real object is seen to the user, it is possible to reduce eye strain of the user.
[0012]
On the other hand, the image display device used in the conventional image display system, as described above, presents any image at a fixed position, so the presence of the presented image is poor, giving the user a sense of discomfort, and both eyes Use because the virtual image distance due to the parallax and the virtual image distance presented to the user are different (ie, the image is viewed with the binocular parallax and the presented image being different) Eye fatigue, decreased visual acuity, general fatigue, and headaches.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
  In the present invention, the virtual image distance control means,
  An image generation unit that presents an image independently on a pair of display units;
  A virtual image distance signal generator for generating a virtual image distance signal;
  A virtual image distance control unit for controlling a virtual image distance by a virtual image distance signal;
It is desirable that the virtual image distance is continuously controlled in conjunction with the presented image.
[0014]
  Specifically, the binocular head-fixed realistic image having a mechanism in which the image display device arranges the image display panel and the lens on the front left and right of the user and can continuously change the distance of the virtual image. It is configured as a display device.
[0015]
In this case, the left-eye and right-eye cameras are arranged in accordance with the pupil distance of the user in the image generation unit,
These left-eye camera and right-eye camera are rotated in the opposite direction by the same angle so that they have a symmetrical orientation.
The distance to the object is determined by the pupil interval of the user and the angle formed by the left-eye and right-eye cameras,
According to the distance, the virtual image distance in the head-fixed image display device is continuously controlled.
Thus, it is possible to further reduce the user's fatigue by presenting the user with an image that looks like a real object. In other words, the distance of the virtual image formed by the image display panel and the lens is continuously adjusted according to the pupil distance of each person, so that the distance of the virtual image due to binocular parallax is reliably matched and used. The fatigue of the person can be further reduced.
[0016]
Alternatively, a camera is used in the image generation unit,
The distance to the object is determined by the focal length of the camera or by a distance meter provided separately,
It is also desirable that the virtual image distance in the head-fixed image display device is continuously controlled according to the distance.
[0017]
In this case, it is preferable to have an image generation unit or a camera that presents the same image to the left and right eyes of the user and to continuously control the virtual image according to the distance determined as described above.
[0018]
  The present invention further includes a head movement detection unit that detects the movement of the head, and when a signal is sent to the image generation unit and the virtual image distance control unit to be linked to the presentation image and the presentation virtual image distance, an image with a sense of presence Realize presentation and increase immersion. On the other hand, in the head-fixed image display device, since the device is fixed to the user's head, as it is, there is no change in the image that usually occurs due to the movement of the head, and there is little realism and a sense of incongruity. I may feel it.
[0019]
【Example】
Hereinafter, the present invention will be described in detail with reference to examples.
[0020]
1 to 8 show a first embodiment in which the present invention is applied to a binocular head-fixed image display apparatus and its system.
[0021]
FIG. 1 is a schematic diagram showing a configuration of an image display system including an image display device according to the present embodiment, and FIG. 2 is a flowchart of the operation thereof. This system basically includes a head-fixed image display device 60, an image generation unit 61, a virtual image distance signal generation unit 62, a virtual image distance control unit 63, and a head movement detection unit 64. ing. The left and right eye image signal generation devices 65 and 66 are used as the image generation unit 61, and the virtual image distance calculation device 67 is used as the virtual image distance control unit 63.
[0022]
Next, the operation of this system will be described. First, the image synchronization signal a is sent from the right-eye image signal generation device 66 to the left-eye image signal generation device 65. These image signal generation apparatuses send an image signal right b and an image signal left c that give appropriate parallax to the left and right eyes while maintaining synchronization by the image synchronization signal.
[0023]
Then, a right eye image display panel 69 (corresponding to a display unit 1R described later) and a left eye image display panel 70 (described later) are attached to the binocular head-fixed image display device 60 by the image display panel driving device 68. The image is displayed on the display unit 1L) and presented to the left and right eyes of the user independently.
[0024]
Here, a UNIX computer with a built-in CG image rendering board is used as the image signal generating devices 65 and 66, and an LCD driver circuit with an NTSC decoder circuit is used as the image display panel driving device 68.
[0025]
Further, the set virtual image distance signal d is sent to the virtual image distance calculation device 67 from the virtual image distance signal generation device 62 which is also used as the right eye image signal generation device 66. In the virtual image distance calculation device 67, an appropriate motor control signal e corresponding to the virtual image distance signal d is sent to the motor 72 fixed to the binocular head-fixed image display device 60 via the interface board 71. The rotation of the motor 72 allows the user to view an image at the set virtual image distance.
[0026]
Here, a UNIX type computer is used as the virtual image distance signal generating device 62, and an MSDOS type computer is used as the virtual image distance calculating device 67.
[0027]
The head-fixed image display device 60 is provided with a head movement detector 64 (for example, a piezoelectric vibration type rotation detection sensor) that generates a head movement signal f in a constant cycle in accordance with the user's head movement. ing.
[0028]
When the user moves the head in response to the image being viewed, the head movement signal f from the head movement detector 64 is sent to the image signal generation device 66 for the right eye. Then, new left and right eye image signals b and c reflected in the head movement are generated, and a new virtual image distance signal d is generated.
[0029]
The new image signals b and c are sent to the left and right image display panels 69 and 70 via the image display panel driving device 68, and a new image is presented to the user. At the same time, the virtual image distance signal d is sent to the virtual image distance calculation device 67 to display an image at an appropriate position in front of the user.
[0030]
According to the present embodiment, the image signal to be presented to the user is generated independently for the left and right eyes, and the means for continuously changing the virtual image distance according to the image signal is provided. As shown, the position 53 of the virtual image presented to the user and the image position 52 due to parallax can be reliably matched. In other words, because the virtual image distance is continuously variable, it is possible to realize a realistic presentation image, increase the immersive feeling, and present the user with an image that looks like a real object. A person's eyestrain etc. can be reduced.
[0031]
In particular, the provision of a mechanism that detects the movement of the user's head and reflects it in the presented image and the virtual image distance surely realizes realistic image presentation and sufficiently increases the sense of immersion. Can do.
[0032]
As the binocular head-fixed image display device 60 described above, for example, an example disclosed in JP-A-6-123852 can be adopted as shown in FIGS.
[0033]
5 shows the overall appearance of the display device 60, FIG. 6 shows the optical system, FIG. 7 shows the arrangement of the mechanism, and FIG. 8 shows the appearance of the mechanism. 5 to 8, left and right lens systems 2L and 2R are respectively provided for left and right display units (display panels) 1L and 1R in which a backlight and a display liquid crystal panel are combined. Then, the optical axes of these lens systems 2L and 2R are reflected and bent by the beam splitter 3 arranged with an inclination of 45 ° and enter the left and right eyeballs of the user. Further, a liquid crystal shutter 4 is disposed in front of the beam splitter 3 as a dimming means.
[0034]
The left and right display units 1L and 1R, the left and right lens systems 2L and 2R, the beam splitter 3 and the liquid crystal shutter 4 are housed in an arbitrary housing 5. The casing 5 is made of a material that is matt and painted in black and does not transmit light, and is disposed on the front holder table 7 of the head mounting member 6. By mounting this head mounting member 6 on the head, a virtual image can be viewed.
[0035]
Left and right display units 1L and 1R and left and right lens systems 2L and 2R are provided on the upper side of the holder table 7, and a beam splitter 3 and a liquid crystal shutter 4 are provided on the lower side thereof. In the drawing, the case member outside the spectacles-type display device above the holder table 7 is omitted.
[0036]
The left and right display units 1L and 1R are fixed to linear sliders 11L and 11R, respectively. These linear sliders 11L and 11R are attached to a common slider shaft 12 so that the left and right display units 1L and 1R can move to the left and right. The linear sliders 11L and 11R are provided with pins 19L and 19R connected to the link mechanism, respectively.
[0037]
The left and right display units 1L and 1R, the linear sliders 11L and 11R, and the slider shaft 12 are configured to move up and down along the slider shaft 13. A diopter adjusting motor 72 is provided between the left and right display units 1L, 1R. The motor 72 moves the left and right display units 1L and 1R, the linear sliders 11L and 11R, and the slider shaft 12 up and down with respect to the housing 5.
[0038]
The left and right lens systems 2L and 2R are fixed to linear sliders 21L and 21R, respectively. These linear sliders 21L and 21R are attached to a common slider shaft 22 so that the left and right lens systems 2L and 2R can move to the left and right. The slider shaft 22 is fixed to the housing 5, and the entire left and right lens systems 2 </ b> L and 2 </ b> R, linear sliders 21 </ b> L and 21 </ b> R, and the slider shaft 22 are fixed vertically to the housing 5. These linear sliders 21L and 21R are provided with longitudinal grooves 29L and 29R connected to the link mechanism, respectively.
[0039]
In addition, a knob 31 for adjusting the interpupillary distance is disposed at the center upper portion of the housing 5, and the rotation of the gear 32 provided coaxially with the knob 31 is driven via the semicircular gear 33. , 34R. These drive gears 34L and 34R are meshed with each other and driven to rotate in the opposite direction. Fan gears 35L and 35R are meshed with these drive gears 34L and 34R, respectively.
[0040]
Furthermore, the first slide arms 36L and 36R are integrally provided in each of the sector gears 35L and 35R. One ends of these slide arms 36L and 36R are pivotally supported by a common rotation shaft 37 so as to be freely rotatable. The intermediate portions of the slide arms 36L and 36R are linked to the intermediate portions of the second slide arms 39L and 39R via joint plates 38L and 38R, respectively. One ends of these slide arms 39L and 39R are pivotally supported on the rotation shafts 40L and 40R, respectively.
[0041]
Slide pins 41L and 41R are provided at the other ends of the slide arms 39L and 39R, respectively, and these slide pins 41L and 41R are inserted into vertical grooves 29L and 29R provided in the linear sliders 21L and 21R. The other ends of the slide arms 36L and 36R are provided with long holes 42L and 42R along the base line. The long holes 42L and 42R have pins 19L and 19R provided on the linear sliders 11L and 11R. Is inserted.
[0042]
Therefore, when the user turns the knob 31, the slide arms 36L and 36R are rotated, and the slide arms 39L and 39R are further rotated via the joint plates 38L and 38R. As a result, the linear sliders 21L and 21R move symmetrically to the left and right via the slide pins 41L and 41R, and the interpupillary distance can be adjusted.
[0043]
When the motor 72 is rotated by the control signal e described above, the display units 1L and 1R, the linear sliders 11L and 11R, and the slider shaft 12 are moved up and down with respect to the housing 5 by the feed mechanism engaged with the rotation shaft. Move to. On the other hand, the lens systems 2L and 2R, the linear sliders 21L and 21R, and the slider shaft 22 are fixed vertically with respect to the housing 5. As a result, the left and right display units 1L and 1R and the left and right lens systems 2L and 2R approach or separate from each other, and the diopter can be adjusted.
[0044]
In this case, when the left and right display units 1L and 1R move up and down, their positions move left and right along the long holes 42L and 42R at the other ends of the slide arms 36L and 36R. Further, the slide arms 36L and 36R have a rotation axis 37 as a central point on the principal point axis of the left and right lens systems 2L and 2R, and a base line passing through the focal points of the lens systems 2L and 2R. In this manner, a link mechanism of the slide arms 36L and 36R, the joint plates 38L and 38R, and the slide arms 39L and 39R is formed.
[0045]
Therefore, in this display device, the left and right lens systems 2L and 2R move symmetrically according to the interpupillary distance, and the center point on the principal axis of the left and right lens systems 2L and 2R and the respective lens systems 2L. The left and right display units 1L and 1R move on a line segment connecting the 2R focal points.
[0046]
9 to 17 show a second embodiment in which the present invention is applied to a binocular head-fixed image display apparatus and its system.
[0047]
  Compared with the first embodiment described above, this embodiment is an image signal generation device.65, 66However, common parts may be denoted by common reference numerals and description thereof may be omitted.
[0048]
FIG. 9 is a schematic diagram of the entire image display system showing a configuration when a camera is used instead of the image signal generation device, and FIG. 10 is a flowchart of the operation thereof. 11 to 14 are explanatory views showing the positional relationship between the left and right cameras and the symmetrical object, FIG. 15 is a perspective view showing the left and right cameras, the camera stand, and the object, and FIGS. 16 and 17 are distance determination methods. It is explanatory drawing of.
[0049]
The image display system including the image display device according to the present embodiment basically includes a head-fixed image display device 60, an image generation unit 81, a virtual image distance signal generation unit 82, a virtual image distance control unit 83, And a head movement detector 64.
[0050]
Here, as the virtual image distance signal generation unit 82, a CPU small board with a built-in angle sensor built in the right-eye camera base motor is used, and as the virtual image distance control signal unit 83, an MSDOS type computer with a built-in motor control board is used.
[0051]
  The operation of this system will be described. First, from a camera control device 87 (for example, MSDOS type computer) that also serves as a virtual image distance control device, a camera stand control signal g is sent from a right eye camera stand motor 91 and a left eye camera stand motor 90. (A distance measurement signal j may be sent from the right-eye camera 86). This is because the directions of the left and right cameras 85 and 86 are kept synchronized by the camera base synchronization signal h (rotated by the same angle in opposite directions).11The angles of the two cameras 85 and 86 are adjusted as shown in FIG. The camera used here is, for example, a CCD area sensor type small video camera.
[0052]
An image signal right b and an image signal left c are sent from the right eye camera 86 and the left eye camera 85, and the right eye attached to the binocular head-fixed image display device 60 by the image display panel driving device 68. Images are displayed on the image display panel 69 and the left-eye image display panel 70, and the images are presented independently to the left and right eyes of the user.
[0053]
At the same time, an appropriate motor control signal e corresponding to the camera stand control signal g is sent from the virtual image distance (calculation) controller 87 (for example, MSDOS type computer) via the interface board 71 to display the binocular head-fixed image. This is sent to a motor 72 fixed to the device 60. The rotation of the motor 72 allows the user to view an image at the set virtual image distance.
[0054]
The head-fixed image display device 60 is provided with a head movement detector 64 that generates a head movement signal f at a constant period according to the user's head movement.
[0055]
When the user moves the head according to the image being viewed, the head movement signal f from the head movement detector 64 is sent to the camera direction control device 88 (for example, an MSDOS type computer with a built-in motor control board). It is done. In response to the head movement, a camera direction control signal i is generated and sent to the camera direction table motor 89 to change the entire image direction.
[0056]
As shown in FIGS. 11 to 14, the left and right eye cameras 85 and 86 are arranged at the same interval as the pupil interval of the user. Then, the distance to the position of the real object (object) 92 is made the same as the virtual image distance and displayed on the head device display.
[0057]
As shown in FIG. 15, the camera direction base motor 89 rotates a camera mounting base (camera direction base) 93 to which the left and right eye cameras 85 and 86 are attached. A mounting plate 94 of the camera direction table 93 to which the camera direction table motor 89 is mounted is connected to the vertical motor 96 by a vertical belt 95 so that it can rotate. The vertical mounting plate 97 on which the vertical motor 96 is mounted is connected to the horizontal motor 100 on the horizontal mounting base 99 by a horizontal belt 98 so that it can rotate. As a result, the camera mount 93 can move in accordance with the user's head movement.
[0058]
The new image signal is sent to the left and right image display panels 69 and 70 via the image display panel driving device 68, and a new image is presented to the user.
[0059]
According to this embodiment, since the image display panel and the lens have a mechanism that can continuously adjust the distance of the virtual image while adjusting the distance between the pupils of each person, the user looks at the real object. An image can be presented to reduce user fatigue. In addition, the same excellent effect can be obtained by the same mechanism as that of the first embodiment described above.
[0060]
By these interactions, an artificial space can be formed around the user, and the user's presence can be increased.
[0061]
While the embodiments of the present invention have been described above, the above-described embodiments can be variously modified based on the technical idea of the present invention.
[0062]
For example, as shown below, various methods in place of the above-described method can be adopted.
(1) A method in which an image signal generation device and a virtual image distance signal generation device are provided independently.
(2) A system that doubles as a virtual image distance signal generation device and a virtual image distance calculation device.
(3) A system in which a mechanism for providing a reaction force according to the user's movement is provided separately and used together with the presentation image reflected in the user's movement.
(4) A method of presenting an image using an image display panel that is not a liquid crystal.
(5) A system that uses a network such as a wireless or telephone line to connect each device.
(6) A system in which one of the left and right is an image signal generator and the other side is a camera.
(7) A method in which the presented image is linked only by the horizontal rotation component of the head movement detector.
[0063]
(8) As shown in FIGS. 16 and 17, the distance of the virtual image is not determined by the distance and orientation between the left and right cameras 85 and 86, but is either one of the focal lengths or a distance measuring device 101 (for example, a motor) A method of controlling a virtual image distance by sending a virtual image distance measurement signal j to a virtual image distance control device 87.
[0064]
(9) As shown in FIG. 18, the same image is presented to the left and right eyes of the user, and the focal length or distance of the virtual image distance signal generator and the binocular camera 102 (for example, a CCD area sensor type autofocus video camera). A method for controlling the virtual image distance of the image presented to the user in accordance with the virtual image distance determined by the measuring device 101.
[0065]
Note that the structure and shape of the binocular head-fixed image display device described above may be variously changed. Furthermore, in the above-described embodiments, the present invention is applied to a display device used for virtual reality. However, the present invention is not limited to this, and can be applied to various display devices such as a computer display device.
[0066]
[Effects of the invention]
  As described above, the image display system according to the present invention is as follows.Right eye image signal generating means and left eye image  Having an image synchronization signal for maintaining synchronization with the image signal generating means and based on the head movement signal  And an image generation unit that generates an image signal that presents an image independently to the left and right eyes, or a user's  Generates an image signal that is arranged at the same interval as the pupil interval and presents an image independently to the left and right eyes  It has a right-eye camera and a left-eye camera, and the right-eye camera and the left-eye camera are opposite to each other  It is designed to rotate by the same angle, and the camera direction is based on the head movement signal.  A camera direction table having means for changing
    A virtual image distance signal generation unit that generates a virtual image distance signal in conjunction with the presented image by the image signal  Or by the focal length of the right-eye camera, the focal length of the left-eye camera, or distance measuring means  A virtual image distance signal generation unit that generates a virtual image distance signal based on the determined distance of the object;
    A pair of display units and respective lens systems for images displayed on these display unitsWhen,  Adjusting means capable of moving the lens system in accordance with the distance between the pupils of the userAndAnd said  Based on the virtual image distance signal linked to the presented image by the image signal or the distance of the object.  Based on the virtual image distance signal, the position of the presented virtual image and the image position by binocular parallax are matched.  Virtual image distance control means forConfigured to observe the virtual image obtained through the lens system.An image display device,
    Head movement is detected, and head movement signal is generated by the image signal generator and the virtual image distance signal.  The head movement detector
FromTherefore, the following remarkable effects can be obtained.
[0067]
  In other words, the virtual image distance control means for matching the position of the virtual image presented to the user with the image position due to parallax allows the virtual image distance to be continuously varied to realize a realistic presentation image and increase the sense of immersion. At the same time, it is possible to reduce eyestrain and the like of the user by presenting the user with an image that looks like a real object.
  In particular, since the left and right eyes independently generate an image signal to be presented to the user and a means for changing the virtual image distance according to the image signal is provided, the position of the virtual image presented to the user and the image position due to parallax are determined. Providing a mechanism that can be surely matched and that detects the movement of the user's head and reflects it in the displayed image and virtual image distance reliably realizes realistic image presentation, The feeling of immersion can be increased sufficiently.
  In addition, the lens system can be moved to a normal position corresponding to the pupil position by adjusting means for moving the lens system according to the distance between the pupils of the user.
[Brief description of the drawings]
FIG. 1 is a schematic view of a binocular head-fixed image display system according to a first embodiment of the present invention.
FIG. 2 is an operation flowchart of the system.
FIG. 3 is a schematic diagram for explaining control of a virtual image distance (far distance) in the system.
FIG. 4 is a schematic diagram for explaining control of a virtual image distance (short distance) in the system.
FIG. 5 is a perspective view of an example of a binocular head-fixed image display device used in the system.
FIG. 6 is a perspective view of an optical system of the display device.
FIG. 7 is a perspective view showing the mechanism of the display device.
FIG. 8 is a perspective view for explaining a mechanism unit of the display device.
FIG. 9 is a schematic view of a binocular head-fixed image display system according to a second embodiment of the present invention.
FIG. 10 is an operation flowchart of the system.
FIG. 11 is a schematic diagram for explaining a situation in which a distance of an object (a camera side at a long distance) is determined in the system.
FIG. 12 is a schematic diagram for explaining control of a virtual image distance (a display side at a long distance) in the system.
FIG. 13 is a schematic diagram for explaining a situation in which the distance of the object (the camera side at a short distance) is determined in the system.
FIG. 14 is a schematic diagram for explaining control of a virtual image distance (display side at a short distance) in the system;
FIG. 15 is a schematic perspective view showing a mechanism for determining the distance of an object in the system.
FIG. 16 is a schematic diagram for explaining control of a virtual image distance according to another embodiment of the present invention.
FIG. 17 is a schematic view for explaining control of a virtual image distance according to another embodiment of the present invention.
FIG. 18 is a schematic view for explaining control of a virtual image distance according to still another embodiment of the present invention.
FIG. 19 is a schematic diagram for explaining a relationship (far distance) between an object distance and a virtual image distance in a conventional example.
FIG. 20 is a schematic diagram for explaining the relationship (short distance).
[Explanation of symbols]
50, 51 ... Eyeball
52, 92 ... Position of the object (image position)
53 Virtual image position
60 ・ ・ ・ Binocular head-fixed image display device
61, 81 ... Image generator
62, 82 ... Virtual image distance signal generator or device
63 ... Virtual image distance controller
64... Head movement detector or detector
65, 85 ... Left eye signal generator
66, 86 ... right eye signal generator
67 ... Virtual image distance calculation device
68. Image display panel driving device
69 ・ ・ ・ Right-eye image display panel
70 ... Left eye image display panel
71 ・ ・ ・ Interface board
72 ... Motor
85 ... Left eye camera
86 ... Right-eye camera
87... Virtual image distance control device / camera control device
88 ... Camera direction control device
89 ... Camera direction motor
90 ... Left eye camera base motor
91 ... Camera stand motor for right eye
93 ... Camera direction table
95 ・ ・ ・ Vertical belt
96 ・ ・ ・ Vertical motor
98 ・ ・ ・ Horizontal belt
99 ・ ・ ・ Horizontal motor
101 ・ ・ ・ Distance measuring instrument
102 ... Binocular camera
a ... Image synchronization signal
b ... Image signal right
c: Image signal left
d ... Virtual image distance signal
e ... Motor control signal
f ・ ・ ・ Head movement signal
g ... Camera stand control signal
h ... Camera stand synchronization signal
i ... Camera direction control signal
j: Virtual image distance measurement signal

Claims (2)

And an image synchronization signal keep a synchronization between the right-eye image signal generating means and the left-eye image signal generating means, and an image presenting an image independently of the right and left eyes on the basis of head movement signal An image generator for generating a signal;
A virtual image distance signal generation unit that generates a virtual image distance signal in conjunction with the presented image by the image signal ;
Has a pair of display portions, and each of the lens system to the image that is displayed on a display unit, an adjustment means capable of moving the lens system in accordance with the interpupillary distance of the user, and the image signal A virtual image distance control means for matching the position of the presented virtual image with the image position based on the binocular parallax based on the virtual image distance signal linked to the presented image by observing the virtual image obtained through the lens system An image display device configured to :
A head movement detection unit that detects head movement and sends a head movement signal to the image generation unit and the virtual image distance signal generation unit;
An image display system composed of. It has a right-eye camera and the left eye camera which is arranged in the same interval as the pupil distance of the user independently for the left and right eyes to generate a Hisage Shimesuru image signal an image for the right eye camera and the left-eye camera And a camera direction table having means for changing the camera direction table direction based on the head movement signal, and
A virtual image distance signal generation unit that generates a virtual image distance signal based on a focal length of a right-eye camera, a focal length of a left-eye camera, or a distance of an object determined by a distance measuring unit ;
A pair of display units, respective lens systems for images displayed on these display units, and adjusting means capable of moving the lens system in accordance with a distance between pupils of the user, and the object It has a virtual image distance control means for matching the images position by position and binocular parallax presentation virtual image based on the virtual image distance signal based on the distance, configured to observe a virtual image obtained through the lens system An image display device,
Detecting a movement of the head, the head movement detecting portion for sending a head movement signal to the generator and the virtual image distance signal producing formation portion of the image signal
An image display system composed of

Images