JPH05241122A - Visual information display device - Google Patents

Abstract

PURPOSE:To prevent image information of CG, television, video, etc., which is superimposed on scenery from becoming difficult to see because the brightness of scenery is high when the image information of CG, television, video, etc., is superimposed on the scenery viewed with the user's eye. CONSTITUTION:This device is equipped with a half-mirror 50 arranged on the line of sight of the user who wears the device, polarizing glass 70 which is arranged on the line of sight of the user on the opposite side from the user across the half-mirror 50, a base mount 10 which holds the half mirror 50 and polarizing glass 70 at their positions, and a liquid crystal display device 30 which is held on the base mount 10 and displays and projects an image on the half-mirror 50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a visual information display device capable of displaying images such as television images, video images, computer graphics and the like on the visual field of the wearer.

[0002]

2. Description of the Related Art For example, when displaying a landscape of a building after completion in a planned construction site such as a building, an image of the completion of the building is created by computer graphics (hereinafter abbreviated as CG) and monitored. Generally, it is displayed on the screen, and the work manager at the planned construction site can see the video information such as the planned completion image, television image and video image by the CG at any place while moving on the site. Needless to say, it would be convenient to be able to grasp the progress of construction work.

By the way, conventionally, as a device for displaying an image in front of a user, a small CRT is mounted on the user's line of sight by, for example, attaching a small CRT to an eye mask type body mounted on the user's head. The thing that is made to be made to be offered is provided.

[0004]

However, when a person in charge of work is equipped with the above-mentioned device to visually check the progress of the construction work at the site, the visual field of the user is blocked by the eye mask in this device. Whenever the person in charge of work looks at the current scene of the site, he or she must remove the eye mask from the head and position the small CRT outside the field of view each time.For example, a construction planned to be completed in the current scene of the site. There is a problem that you cannot see the images of the objects one on top of the other.

The present invention has been made in view of the above circumstances, and it is possible to display image information such as CG, television, video and the like in a superimposed manner on a landscape that the user can see with the naked eye, and in particular, the user can see with the naked eye. It is an object of the present invention to provide a visual information display device capable of preventing the image information of CG, television, video, etc., which is displayed overlaid on a landscape from becoming difficult to see due to the high brightness of the landscape.

[0006]

To achieve the above object, the present invention provides a half mirror arranged in the line of sight of the wearer, and the wearer sandwiching the half mirror in the line of sight of the wearer. And a holding member for holding the half mirror and the polarizing member at the positions, and a video image held by the holding device for displaying an image and projecting the image on the half mirror. And a device. Further, the present invention is characterized by comprising two image display devices corresponding to the left and right eyes of the wearer and displaying different images respectively.

Further, according to the present invention, the image display device is arranged so as to be directed toward the front of the wearer, and the holding means directs the image displayed by the image display device to the half mirror. It is characterized in that a reflection mirror for reflecting the light is held. In addition, the present invention is characterized in that the polarizing member is detachably held by the holding means.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a schematic configuration of a visual information display device according to an embodiment of the present invention, and FIG. 2 is a view taken along arrow A in FIG. In FIG. 1, reference numeral 10 denotes a base mount as a holding means, which is attached to a headband, a helmet, or the like (not shown) and attached to the head H (FIG. 3) of the user (wearer). As shown in FIG. 1, this base mount 10
An adjuster 12 that extends in the line-of-sight direction L of the eye E of the user and has a scale 12a engraved on the upper portion thereof is provided on the upper surface 11 of the.

Reference numeral 20 in FIG. 1 is a slide frame. The slide frame 20 includes a guide piece 21 that engages with a side edge of the lower surface 13 of the base mount 10 and a rotatable adjust roller 22 that is in pressure contact with the upper surface 11 of the base mount 10.
It can be moved in the line-of-sight direction L with respect to the base mount 10 by rotating 2, and the amount of the movement can be visually confirmed by the scale 12a formed on the adjuster 12. ..

On the slide frame 20, when the head band, helmet or the like (not shown) is mounted on the user's head (not shown), the user is positioned on the line of sight of the user's eye E. Adjuster 12 so that it points to the front
Liquid crystal display devices 30, 30 as image display devices are arranged in an inverted state, one on each side of the liquid crystal display device. Further, as shown in FIGS. 1 and 2, two transparent windows 15, 15 are provided in the base mount 10 in front of the foremost end of the moving range of the slide frame 20, and each transparent window 15 has a transparent window 15. The Fresnel lens 60 is fitted.

Further, as shown in FIGS. 1 and 2, a reflection mirror 40 is provided on the upper surface 11 of the base mount 10 so as to face the two transmissive windows 15 and to be inclined at 45 ° with respect to the base mount 10. It is provided in. On the other hand, FIG.
As shown in FIG. 3, the half mirror 50 is attached to the L-shaped piece 14 attached to the lower surface 13 of the base mount 10 and the two transmission windows 1
5 ° and 45 ° to the base mount 10
Of 90 ° with respect to the reflection mirror 40.
Are attached so as to be positioned on the line of sight of the eye E of the user. Further, as shown in FIG. 1, a holding piece 51 is attached to the surface of the half mirror 50 opposite to the side of the user's eye E. With this holding piece 51, the polarizing glass 70 as a polarizing member is attached to the user. It is detachably held so as to be positioned on the line of sight of.

Next, the left and right liquid crystal display devices 30, 30
A configuration for displaying an image will be described with reference to FIG. In FIG. 3, reference numeral 31 is a receiver for receiving a video signal of the NTSC system and displaying it on the liquid crystal display device 30, and a tuner for receiving a video signal of the NTSC system in the ultra-high frequency (UHF) band via the antenna 32. (Not shown). In this embodiment, two sets of tuners for receiving the video signals of different frequencies are provided in the receiving section 31 corresponding to the left and right liquid crystal display devices 30, 30.

Reference numeral 33 is a transmitter provided corresponding to the receiver 31, and includes a camera 35, tape and disk VCRs 36 and 37, and RGB = NTSC converter 3.
8 is connected via a selector 34 for selecting a desired signal from these output signals, and RGB =
The NTSC converter 38 has a computer 3 for CG creation.
9 is connected.

The transmitter 33, selector 34, camera 35, video decks 36 and 37, RGB = NTSC.
The converter 38 and the computer 39 for CG creation are
Although only one set is shown in FIG. 3, actually two sets are provided like the tuner (not shown), and from the cameras 35, the video decks 36 and 37, and the computer 39 for CG creation of each set. The video signals are output so as to be slightly displaced from each other corresponding to the left and right eyes E of the user.

In the visual information display device of this embodiment having the above-described structure, the left eye for any one of the camera 35, the video decks 36, 37 and the computer for CG creation 39 selected by the selector 34 is selected. Then, a signal of the image for the right eye is transmitted from the transmitter 33 to the air by ultra-high frequency, and is received by the receiver 31 via the antenna 32. Then, different images for the left eye and the right eye according to the received video signal are displayed on the left and right liquid crystal display devices 30 in an inverted state, and the images displayed on the liquid crystal display device 30 in an inverted state are respectively reflected by a reflection mirror. Fresnel lens 6 reflected at 40
When the image size is corrected at 0 and the perspective is adjusted, the image is projected on the half mirror 50 in an upright state, and the user who sees the half mirror 50 with the left and right eyes E sees a three-dimensional image.
You will see a three-dimensional image.

Further, the user who views the half mirror 50 with the left and right eyes E views the scenery in front of the half mirror 50 on the half mirror 50 in a state where the scenery is polarized by the polarizing glass 70 and the brightness is adjusted. It will be overlaid on the projected image. In this case, the left and right liquid crystal display devices 3
The focal length of the image displayed at 0 and 30 and projected on the half mirror 50 is such that the adjusting roller 22 is rotated to move the slide frame 20 in the line-of-sight direction L with respect to the base mount 10, and thereby The liquid crystal display devices 30 and 30 are integrally moved in the line-of-sight direction L with respect to the base mount 10 to be appropriately adjusted.

As described above, in the visual information display device of this embodiment, the camera 3 selected by the selector 34 is selected.
5, different images for the left eye and the right eye from any of the video decks 36, 37, and the computer for CG creation 39 are projected on the half mirror 50, so that the left and right eyes E can use the half mirror 50. A user who sees can see the images for the left eye and the right eye projected on the half mirror 50 and the real image such as a landscape in front of the half mirror 50 in an overlapping manner. Therefore, for example, a person in charge of construction at a construction site such as a building attaches the visual information display device of this embodiment to visually check the construction site, and in this state, the half mirror 50 is used.
For example, if a projected image of the completion of the building under construction created by the computer 39 for computer creation is projected on the above, the appearance of the building at the time of completion can be seen at a glance, and the progress status of the construction can be accurately grasped. Will be able to.

Further, since the scenery or the like in front of the half mirror 50 is polarized by the polarizing glass 70 to adjust the brightness, the projected image on the half mirror 50 which is overlaid on the scenery or the like and viewed by the user. Does not become blurred due to the brightness of the landscape and the like, and the projected image on the half mirror 50 can be easily viewed. Since the polarizing glass 70 is detachably attached to the L-shaped piece 14 of the base mount 10, for example, the polarizing glass 70 is replaced with one having a high polarization rate and only the projected image on the half mirror 50 is visually observed. It is also possible to do so, which is effective, for example, when watching a television program using the visual information display device of this embodiment.

Further, according to the visual information display device of this embodiment, the direction of the image for the left eye and the direction of the image for the right eye projected on the half mirror 50 are slightly deviated from each other. By viewing the half mirror 50 with the left and right eyes E, a stereoscopic three-dimensional image can be viewed, and the sense of presence can be further enhanced.

In this embodiment, the liquid crystal display devices 30, 30
The image is projected on the half mirror 50 after it is arranged in an inverted state and reflected by the reflection mirror 40. However, when a liquid crystal display device that displays an image in which the image is horizontally reversed is used, The mirror may be omitted and the liquid crystal display device may directly project the light onto the half mirror.
Two may be provided corresponding to 0 and 30. On the contrary, the liquid crystal display device 30 may be integrated into one to project a planar two-dimensional image on the half mirror 50.

Further, although the liquid crystal display devices 30 and 30 are used as the device for displaying the image in this embodiment, other small cathode ray tubes or the like may be used, and the polarizing member is shown in the embodiment. In addition to the polarizing glass, it is possible to use a liquid crystal plate or the like that electrically transmits and blocks light rays. Further, the visual information display device according to the present invention is not limited to the case where a scene of a construction site at the time of completion at a construction site is viewed, and the case where a video image such as a television image, a video image, or computer graphics is overlaid on the immediate field of view. Since the receiving unit 31 can receive an NTSC signal in the ultra-high frequency band, it goes without saying that the receiving unit 31 can be applied to various uses other than those shown in the embodiments, such as receiving and watching a television program while walking.

[0022]

As described above, according to the present invention, the image displayed on the image display device is projected on the half mirror which is held by the holding means and is arranged in the line of sight of the wearer. The image information such as CG, television, and video is superimposed on the landscape captured by the wearer with the naked eye through the mirror, and the luminance of the landscape captured by the wearer with the naked eye is opposite to that of the wearer side of the half mirror. Since it is adjusted by the polarizing member attached to the surface, the wearer can visually recognize the image information of CG, television, video, etc. while it is difficult to see it due to the brightness of the scenery. It can be displayed overlaid on the captured landscape. Further, since the polarizing member is detachably attached to the half mirror, the polarizing member is appropriately replaced with a polarizing member having a desired polarization ratio so that the brightness of the scenery captured by the wearer with the naked eye can be changed to the desired brightness. Can be adjusted.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic configuration of a visual information display device according to an embodiment of the present invention.

FIG. 2 is a view on arrow A in FIG.

3 is an explanatory diagram showing a partial block diagram of a configuration for displaying an image on the left and right liquid crystal display devices of the visual information display device shown in FIG. 1. FIG.

[Explanation of symbols]

 10 Base Mount (Holding Means) 30 Liquid Crystal Display Device (Video Display Device) 40 Reflecting Mirror 50 Half Mirror 70 Polarizing Glass (Polarizing Member) E Eye

Claims (4)

[Claims] 1. A half mirror arranged in the line of sight of the wearer, a polarizing member arranged in the line of sight of the wearer on the opposite side of the half mirror from the wearer, and the half mirror. And a holding unit that holds the polarizing member in the position, and an image display device that is held by the holding unit and displays an image and projects it on the half mirror. .. 2. The visual information display device according to claim 1, further comprising two image display devices that respectively display different images corresponding to the left and right eyes of the wearer. 3. The image display device is arranged so as to face the front of the wearer, and the holding means has a reflection for reflecting an image displayed by the image display device toward the half mirror. The visual information display device according to claim 1 or 2, wherein a mirror is held. 4. The polarizing member is detachably held by the holding means.
The described visual information display device.