JPH06123852A - Spectacle type display device - Google Patents

Abstract

PURPOSE:To greatly improve user's handleability by aligning the positions of a right and a left virtual image which are viewed even when visibility and the distance between the pupils are adjusted. CONSTITUTION:Left and right lens systems 2L and 2R are moved symmetrically in the right-left direction according to the pupil-to-pupil distance of a user, and left and right display parts 1L and 1R are moved respectively on segments connecting the center point between the left and right lens systems 2L and 2R and the focuses of the left and right lens systems 2L and 2R on the principal point axes of the left and right lens systems 2L and 2R; and the segments are opened and closed symmetrically in the right-left direction associatively with the movement of the left and right lens systems 2L and 2R to align the positions of the left and right virtual images which are viewed regardless of the pupil-to- pupil distance even when the distances between the left and right display parts 1L and 1R, and left and right lens systems 2L and 2R vary.

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. Field of the Invention Conventional Technology Problems to be Solved by the Invention (FIG. 16) Means for Solving the Problems (FIGS. 1, 6, 9, and 1)
1) Operation (FIGS. 1, 6, 9, and 11) Example (1) Configuration of eyeglass-type display device (FIGS. 1 to 5) (2) Configuration of interpupillary distance display unit and virtual image position display unit ( (Figs. 6 to 10) (3) Configuration of head mounting member (Figs. 11 to 14) (4) Other embodiment (Fig. 15)

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spectacle type display device, and can be applied to, for example, a device used in virtual reality, so-called vuar reality.

[0003]

2. Description of the Related Art Conventionally, an image created by a computer graphics system or the like is viewed by a spectacle type display device or the like, and a user feels as if it were in a virtual space in the image (so-called virtual reality ( There is something that was designed to let you experience Vujali Reality)).

The spectacle-type display device used in this varchy reality has left and right display portions on which images are displayed, and the user can display virtual images of these left and right display portions through the left and right lens systems. It is designed to be watched. In this case, optical systems such as left and right lens systems are arranged so that the positions of these virtual images coincide with each other.

[0005]

By the way, in the spectacle-type display device having such a configuration, since viewing is performed through the left and right lens systems, a problem of incompatibility of diopter between the lens system and the user occurs. . For this reason, the eyeglass-type display device is provided with diopter adjusting means for eliminating such a diopter mismatch.

When the diopter is adjusted in this manner, the left and right display parts are usually moved toward or away from the left and right lens systems. In this case, the left and right display parts are provided on a single moving member so that they can be moved integrally. Therefore, when the diopter adjustment is performed, the position of the virtual image G is changed to that shown in FIG.
The positions of the virtual images G _L and G _R do not coincide with each other as shown in FIG.

In reality, even for virtual images whose positions do not coincide with each other in this manner, the user can correct the images so that they coincide with each other and perform visual observation. However, if the visual observation with such correction is continued for a long time, the user is significantly strained and fatigue such as eye strain is caused. For this reason, there is a problem that the eyesight is reduced and a headache occurs, which imposes a heavy burden on the user.

Generally, the distance between the left and right eyes of the user, that is, the distance between the pupils, usually fluctuates by about 56 to 76 [mm]. Therefore, in the eyeglass-type display device, it is necessary to adjust the distance between the left and right lens systems in accordance with such a changing interpupillary distance of the user. When adjusting the inter-lens distance in this way, if the adjusted inter-lens distance, that is, the interpupillary distance can be easily confirmed from the outside without using a distance measuring device such as a caliper or a ruler, it is useful. It is thought that it can be further improved.

Similarly, if the set display position of the virtual image adjusted by the distance between the left and right display portions and the lens can be easily confirmed from the outside, the usefulness is further improved,
It is considered that a spectacle-type display device that is easy to use as a whole can be realized.

The present invention has been made in consideration of the above points, and even if the diopter and the distance between the pupils are adjusted, the positions of the left and right virtual images to be viewed are made coincident, and the usability for the user is remarkably improved. An attempt is made to propose an eyeglass-type display device that can be improved.

[0011]

In order to solve such a problem, according to the present invention, left and right display portions 1L and 1R are provided, and the left and right display portions 1L and 1R are respectively displayed on the left and right display portions 1L and 1R. Lens systems 2L and 2R are provided,
In a spectacle-type display device for observing a virtual image obtained through the left and right lens systems 2L and 2R, the left and right lens systems 2L and 2R are moved symmetrically according to the distance between the pupils of the user, and the left and right lens systems 2L are moved. The left and right display units 1L and 1R are respectively moved on the line segment FO connecting the center point O of the left and right lens systems 2L and 2R and the focal points F of the left and right lens systems 2L and 2R on the principal point axes of 2R. At the same time, by linking with the movement of the left and right lens systems 2L and 2R to open and close the line segments symmetrically, the left and right display units 1L and 1R and the left and right lens systems can be adjusted by diopter adjustment regardless of the interpupillary distance. Two
Even if the distance between L and 2R changes, the positions of the left and right virtual images to be viewed match.

Further, in the present invention, the left and right display portions 1
L and 1R are provided, and left and right lens systems 2L and 2L are provided for the images displayed on the left and right display portions 1L and 1R, respectively.
In a spectacle-type display device provided with R and observing virtual images obtained through the left and right lens systems 2L and 2R, a moving mechanism 19L that moves the left and right lens systems 2L and 2R symmetrically according to the interpupillary distance. , 19R, 42
Slide along L, 42R, the central point O of the left and right lens systems 2L, 2R on the principal point axis of the left and right lens systems 2L, 2R, and the line segment FO connecting the focal points F of the left and right lens systems 2L, 2R Left and right slide mechanisms 29L, 29R, 41L,
41R and the left and right lens systems 2L, 2R moving mechanism 19
Link mechanisms 36L, 36R, 38L, 38R that are linked to L, 19R, 42L, 42R and are opened and closed symmetrically so that the left and right slide mechanisms 29L, 29R, 41L, 41R maintain the relationship along the line segment FO, respectively. , 39L, 3
9R and the left and right slide mechanisms 29L, 29R, 4
The left and right display portions 1L and 1R are attached to the left and right display portions 1L and 41R, respectively, and the left and right display portions 1L and 1R are respectively connected to the line segment F.
By being moved on O, regardless of the interpupillary distance,
Even if the distance between the left and right display units 1L and 1R and the left and right lens systems 2L and 2R is changed by the diopter adjustment, the positions of the left and right virtual images to be viewed are matched.

Further, in the present invention, the left and right lens systems 2
Interpupillary distance scale means 55 and 56 for displaying the interpupillary distance in response to the symmetrical movement of L and 2R are provided. Further, in the present invention, the left and right lens systems 2L, 2
Point O at the center of R and focus F of left and right lens systems 2L and 2R
Virtual image display position graduation means 62, 64 for displaying the display position of the virtual image are provided in response to the movement of the left and right display portions 1L, 1R on the line segment FO connecting the lines.

Further, in the present invention, the left and right display portions 1
The image display unit 71 in which L, 1R and the left and right lens systems 2L, 2R are arranged is rotatably held around the eyeball as seen from the side of the user, and the image display unit 71 is movably held forward and backward. Head mounting means 72 to 75 are provided. Furthermore, in the present invention, the head mounting means 72-75
Is configured to hold the image display unit 71 so that it can be flipped up above both eyes of the user. Furthermore, in the present invention,
The head mounting means 72 to 78 are provided with weights 76 to 78 corresponding to the weight of the image display unit 71 on the back of the head.

[0015]

It is possible to adjust the interpupillary distance and the diopter, and irrespective of this adjustment, even if the distance between the left and right display portions 1L and 1R and the lens systems 2L and 2R is changed, the left and right eyes can be viewed. It is possible to realize a spectacle-type display device in which the positions of virtual images can be matched and all users can view the image well. Further, the virtual image display position according to the adjusted interpupillary distance and diopter can be indicated on the scale and confirmed from the outside.

Further, the head mounting means 72 to 75 are constructed so that the image display section 71 can be rotated by the side of the head and the center of the eyeball, so that the user can see the image at a natural position. In addition, by flipping up the image display unit 71 as a whole, it is possible to avoid obstruction when viewing the outside while wearing the image display unit 71. Furthermore, the weight on the back of the head 76-78
By providing the, it is possible to reduce the burden on the head.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

(1) Structure of the eyeglass-type display device FIG. 1 shows the appearance of the eyeglass-type display device according to the present invention as a whole, FIG. 2 shows its optical system, FIG. 3 shows the arrangement of the mechanism, and FIG. 4 shows the appearance of the mechanism, respectively. 1 to 4, left and right display portions 1L, 1R in which a backlight and a liquid crystal panel for display are combined
On the other hand, left and right lens systems 2L and 2R are provided respectively. And the optical axes of these lens systems 2L and 2R are 45
The beam splitter 3 tilted at an angle reflects and bends the beam splitter 3 and makes it incident on the left and right eyeballs of the user. A liquid crystal shutter 4 is arranged in front of the beam splitter 3 as a dimming means.

The left and right display portions 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 optional housing 5. The housing 5 is made of a matte black painted material that does not transmit light, and is disposed on the holder table 7 in front of the head mounting member 6. By mounting the head mounting member 6 on the head, a virtual image can be viewed.

On the upper side of the holder table 7, the structures of the left and right display portions 1L, 1R and the left and right lens systems 2L, 2R are provided, and on the lower side, the configurations of the beam splitter 3 and the liquid crystal shutter 4 are provided. . Further, in the figure, the case member on the upper side of the holder table 7 and outside the eyeglass-type display device is omitted.

The left and right display portions 1L and 1R are fixed to linear sliders 11L and 11R, respectively. The linear sliders 11L and 11R have a common slider shaft 12
The left and right display units 1L and 1R can be moved to the left and right. The linear sliders 11L and 11R are provided with pins 19L and 19R connected to the link mechanism, respectively.

Further, the entire left and right display portions 1L, 1R, the linear sliders 11L, 11R, and the slider shaft 12 are constructed so as to be able to move up and down along the slider shaft 13. A knob 14 for adjusting diopter is provided between the left and right display portions 1L and 1R. The knob 14 has a screw structure and moves the left and right display portions 1L and 1R, the linear sliders 11L and 11R, and the slider shaft 12 as a whole with respect to the housing 5.

The left and right lens systems 2L and 2R are fixed to linear sliders 21L and 21R, respectively. The linear sliders 21L and 21R have a common slider shaft 2
The left and right lens systems 2L, 2
The R can move to the left and right. The slider shaft 22 is fixed to the housing 5, and the left and right lens systems 2 are
The L, 2R, the linear sliders 21L and 21R, and the slider shaft 22 are fixed to the housing 5 in the vertical direction.
The linear sliders 21L and 21R are provided with vertical grooves 29L and 29R connected to the link mechanism, respectively.

A knob 31 for adjusting the interpupillary distance is arranged in the upper center of the housing 5, and the rotation of a gear 32 provided coaxially with the knob 31 causes a rotation of a driving gear 34L via a half-moon gear 33. , 34R. The drive gears 34L and 34R are meshed with each other and are rotationally driven in opposite directions. The fan gears 35L and 35R are meshed with the drive gears 34L and 34R, respectively.

Further, each fan-shaped gear 35L, 35R
Is integrally provided with first slide arms 36L and 36R. One end of each of the sliding arms 36L and 36R is rotatably supported by a common rotating shaft 37. The intermediate portions of the sliding arms 36L and 36R are linked to the intermediate portions of the second sliding arms 39L and 39R via joint plates 38L and 38R, respectively. Further, one ends of the sliding arms 39L and 39R are rotatably supported by rotating shafts 40L and 40R, respectively.

The slide arms 39L, 39
Slide pins 41L and 41R are provided at the other ends of R, respectively, and these slide pins 41L and 41R are inserted into vertical grooves 29L and 29R provided in the linear sliders 21L and 21R, respectively. Further, at the other ends of the sliding arms 36L, 36R, elongated holes 42L, 42R are formed along the base line thereof, and the linear sliders 11L, 42L are provided in the elongated holes 42L, 42R.
Pins 19L and 19R provided on 11R are inserted.

Accordingly, when the user turns the knob 31, the sliding arms 36L and 36R rotate, and the sliding arms 39L and 39R also rotate via the joint plates 38L and 38R. As a result, the linear sliders 21L and 21L are inserted through the slide pins 41L and 41R.
R moves symmetrically to the left and right, so that the interpupillary distance can be adjusted.

By rotating the knob 14 by the user, the display portions 1L, 1R and the linear sliders 11L, 11R are also displayed.
And the slider shaft 12 as a whole moves up and down with respect to the housing 5. On the other hand, the lens systems 2L and 2R, the linear slider 21
The L, 21R and the slider shaft 22 are entirely fixed to the housing 5 in the vertical direction. As a result, the left and right display units 1L,
The 1R and the left and right lens systems 2L and 2R approach or separate from each other, whereby the diopter can be adjusted.

In this case, when the left and right display portions 1L, 1R move up and down, their positions move left and right along the long holes 42L, 42R at the other ends of the sliding arms 36L, 36R. Further, in the sliding arms 36L and 36R, the rotation axis 37 is set to be a central point on the principal point axes of the left and right lens systems 2L and 2R, and the base line is the lens system 2L,
Slide arms 36L and 36 so as to pass through the focus of 2R
R, joint plate 38L, 38R, sliding arm 3
9L and 39R link mechanisms are formed.

Therefore, in this spectacle-type display device, the left and right lens systems 2L and 2R are moved symmetrically according to the interpupillary distance, and the left and right lens systems 2L and 2R are located at the central point on the principal point axes. The left and right display units 1L and 1R move on the line segment connecting the focal points of the respective lens systems 2L and 2R.

FIG. 5 shows an optical arrangement of the left and right display portions 1L and 1R and the left and right lens systems 2L and 2R. The actual optical path is bent by the beam splitter 3, but the beam splitter 3 is omitted in the figure. In the figure, when the right display unit 1R is placed at the position of point A, the center of the virtual image obtained as a result is formed at point B on the optical axis of the right lens system 2R. In order to actually match the left and right virtual images, it is necessary to bring the center of the virtual image to the point C. That is, assuming that the distance between the optical axes of the lens systems 2L and 2R is δ, δ /
Just move it for 2 minutes.

The lateral magnification m of the virtual image is given by the following equation, where s is the distance between the center A point of the right display section 1R and the principal point axis α of the lens system 2R, and f is the distance to the focal point F.

[Equation 1] It is represented by. Therefore, the required moving amount of the right display unit 1R is d
Then, the virtual image moves by m × d, so

[Equation 2] The movement amount d that satisfies

[Equation 3] It is represented by. This is a line segment from the focal point F to the central point O on the principal point axis α of the left and right lens systems 2L and 2R in the figure. This also applies to the left display unit 1L and the left lens system 2L.

Therefore, in the case of this spectacle type display device, by providing slider shafts 14L and 14R so that the left and right display portions 1L and 1R move along these line segments FO, the left and right can be adjusted by diopter adjustment. Display section 1L, 1R
Even if the distance between the left and right lens systems 2L and 2R changes, the positions of the left and right virtual images viewed can be matched.

Further, when the interpupillary distance is changed, the left and right lens systems 2L and 2R are moved symmetrically, so that the position of the focal point F is also moved in parallel. In this case as well, the base lines of the sliding arms 36L and 36R are rotated so as to pass through the focal points of the respective lens systems 2L and 2R, whereby the positions of the left and right virtual images to be viewed match regardless of the interpupillary distance. It is done like this.

According to the above construction, the interpupillary distance can be adjusted, and the interpupillary distance can be adjusted to change the distances between the left and right display portions 1L, 1R and the left and right lens systems 2L, 2R. It is possible to realize a spectacle-type display device that allows the positions of the left and right virtual images to be viewed to match, and allows all users to view the virtual image satisfactorily.

(2) Configuration of interpupillary distance display section and virtual image position display section In the case of the spectacle type display device of this embodiment, as shown in FIGS. 6 to 8, the knob 31 for adjusting the interpupillary distance is used.
When the pupillary distance is adjusted by rotating, the adjusted pupillary distance can be displayed on the scale.
In practice, when the knob 31 for adjusting the interpupillary distance is rotated as described above, the half moon gear 33 rotates through the gear 32 fixed coaxially, and each half moon gear drive gear 34 is rotated.
L and 34R rotate.

The rotation of the drive gears 34L and 34R drives the drive gears 52L and 52R attached to the rear chassis of the housing 5 via the shafts 51L and 51R. The rotation of the drive gears 52L and 52R is performed by the one drive gear 5
The fan gear 54 is rotated through the synchronous gear 53 coaxially fixed to 2L.

The scale indicating member 55 fixed to the fan-shaped gear 54 moves left and right in response to the rotation of the fan-shaped gear 54. Actually, the tip of the graduation indicating member 55 slightly protrudes from the long groove formed together with the interpupillary distance scale 56 on the outer case 50, and moves left and right along the long groove to adjust the interpupillary distance from the outside. The interpupillary distance adjusted by the rotation of the knob 31 can be read by the user as a numerical value of 56 to 76 [mm], for example.

Further, in the case of the spectacles type display device of this embodiment, as shown in FIGS. 9 and 10, when the knob 14 for adjusting the virtual image position is rotated to adjust the diopter, the diopter is adjusted according to the adjusted diopter. The position of the virtual image can be displayed on the virtual image display position scale. That is, by rotating the knob 14 for adjusting the virtual image position, the left and right display units 1
The distance between L, 1R and the left and right lens systems 2L, 2R changes,
The position of the virtual image displayed in front of the user changes.

When the knob 14 is actually turned, the mounting plates 60 of the left and right display portions 1L and 1R and the scale side plate 61 screwed to the mounting plates 60 descend. The virtual image position indicating plate 62 is connected to the scale center member 63 and the scale side plate 61 attached to the rear chassis 60A by the engaging portions 62A and 62B, respectively, and is rotatable.

As a result, the scale side plate 61 descends, and at the same time, the virtual image position indicating plate 62 also rotates about the scale center member 63, so that the scale indicating plate swings up and down. The tip of the scale indicator plate is the outer case 50.
It is made visible from the outside through a long groove formed with the virtual image position scale 64 on the upper side, whereby the slight adjustment amount of the knob 14 for adjusting the virtual image position is expanded several times, so that the adjusted virtual image position is, for example, 0.21. It is designed so that it can be easily read externally as a numerical value of ~ ∞ [m].

According to the above configuration, the currently adjusted inter-lens distance is graduated in conjunction with the mechanism that allows the arrangement of the display units 1L, 1R and the lens systems 2L, 2R to be changed according to the inter-pupil distance. By instructing and confirming from the outside, it is possible to accurately match the distance between the pupils and the distance between the optical axes of the lens systems 2L and 2R for each user, and view an image with little lens aberration and little distortion. You can

Further, according to the above configuration, the display unit 1L,
By interlocking with a mechanism that can change the position of the virtual image depending on the distance between the 1R and the lens systems 2L and 2R, the set virtual image display position can be indicated on the scale so that it can be confirmed from the outside. The position can be changed to accurately match the position of the image that each person wants to see. Thus, it is possible to realize an eyeglass-type display device which can remarkably improve the usability for the user.

(3) Structure of Head-Mounting Member FIG. 11 shows the structure of the entire head-mounting member of the eyeglass-type display device according to the present invention, in which a weight balance portion is added to the structure of FIG. This glasses-type display device is shown in FIG.
The image display unit 71 described above with reference to FIG. 5, image display unit support units 74 and 75 for instructing the image display unit 71, head mounting units 72 and 73, and weight balance units 76, 77, and 78 are included. .

Of the head mounting portions 72, 73, the peripheral fixing band 72 is for fixing the spectacles type display device to the head, and the size can be changed so as to correspond to the size and shape of the head. Has been done. A weight support band 73 is provided so that the eyeglass-type display device does not fall down.

Of the image display supporting portions 74 and 75,
The mechanism portion support arm 74 is positioned and connected to the side of the head of the head mounting portion 72, and can rotate up and down.
If the mechanism supporting arm 74 is flipped up as shown in FIG. 12 (A), the viewing is interrupted and it does not hinder the viewing of the outside. An image display unit support arm 75 is connected to the side of the mechanism unit support arm 74 opposite to the head mounting unit 72.

The image display section supporting arm 75 is shown in FIG.
As shown in (B), it is configured such that it can rotate up and down at a rotation center that coincides with the center of the eyeball when viewed in the lateral direction.
Further, the image display unit 71 is configured to be movable back and forth. Actually, by rotating the mechanism support arm 74, the center of rotation of the image display support arm 75 is moved up and down to a position where it coincides with the center of the eyeball, and further, the image display support arm 75 is rotated. As shown in C), the image display unit 71 moves up and down around the eyeball.

As described above, the mechanism support arm 74 and the image display support arm 75 can rotate the display position of the image around the eyeball and keep the distance from the eye to the image constant. . By keeping this distance constant, the images and virtual images of the display units 1L and 1R are perpendicular to the line of sight, and the distortion of the image shape can be minimized. Further, it is possible to easily set 0 to −30 [deg] from the horizontal plane which is said to be optimal when viewing an image, and the usability for the user can be improved.

The weight balance portions 76, 77 and 78 are composed of a weight arm 76, a balance weight 77 and a weight restraint 78. The weight balance portions 76, 77, 78 are configured to move integrally with the mechanism portion support arm 74.

In practice, in the image display supporting portions 74 and 75, the head mounting portions 72 and 73, and the weight balancing portions 76, 77, and 78, as shown in FIGS. The support band 73 and the band receiver 81
And the side head pad 82. Then, the temporal spring 80 is sandwiched between this portion and the mechanism supporting arm 74, the temporal shaft 79 is penetrated, and the temporal stopper ring 83 holds the temporal spring 80.

At the center of the eyeball, the eyeball center spring 85 is sandwiched between the mechanism portion support arm 74 and the image portion support arm 75, penetrated by the eyeball center shaft 84, and suppressed by the eyeball center stopper ring 86. The joint portion between the image support arm 75 and the image display unit 71 has elongated holes sandwiched in both sides by a screw, so that the image display unit 71 can be slid forward, backward, leftward and rightward.

Further, the weight balance portions 76, 77, 78
Adjusts the weight arm 76 to the balance weight 77 and the weight restraint 7
It is supposed to be sandwiched by 8. The weight arm 76 is
It has a long hole so that it can spread to the left and right according to the width of the head.

According to the above construction, by rotating the image display unit around the eyeball, a natural image without image distortion can be seen, and by moving the image display unit back and forth, the eyeglasses can be worn. It can be attached while attached. Further, by making it possible to flip up the image display unit 71 and the image display unit support arm 75, it is possible to easily see the outside while wearing, and to provide a weight corresponding to the weight of the image display unit and the width of the head. As a result, the burden on the head is reduced and fatigue is less likely to occur, and thus it is possible to realize an eyeglass-type display device that can significantly improve the usability for the user.

(4) Other Embodiments In the above-mentioned embodiments, the case where the housing is made of sheet metal has been described, but instead of this, it may be formed by resin molding or the like. The same effect as can be achieved. Further, as a structure, the coupling of the sliding arm is not limited to the drive gear, and a timing belt or the like may be used.

Further, in the above-mentioned embodiment, the case where the knob for adjusting the diopter and the adjustment of the interpupillary distance are manually moved has been described, but the present invention is not limited to this, and a drive motor may be incorporated to automatically control. You can In this case, for example, 3
In a spectacle-type display device that performs three-dimensional stereoscopic viewing or the like, it is possible to calculate the position of a virtual image from video data and apply a feedback as the position of the display unit.

Further, in the above-mentioned embodiment, as the interpupillary distance and virtual image position display, the indicator plate is rotated to indicate the scale and the scale is read, but instead of this, the movement of the indicator plate is changed to the rack and pinion. It may be converted into linear motion using a mechanism such as, or the rotation angle of the gear may be read by a rotary encoder and displayed on a display unit such as a liquid crystal display. Even if the scale is used as a scale, the same effect as that of the above-described embodiment can be realized.

Further, in the above-mentioned embodiment, the spring used in the joint portion of the head mounting portion may be a coil spring,
A motor may be incorporated instead of the spring. Further, instead of the band for fixing the head, a helmet or a hat may be used as shown in FIG.

Further, in the above-mentioned embodiment, the present invention is applied to the eyeglass type display device used for the virtual reality, but the present invention is not limited to this, and is widely applied to various display devices such as a display device of a computer. And is suitable.

[0059]

As described above, according to the present invention, the interpupillary distance and diopter can be adjusted, and the distance between the left and right display portions and the lens system can be changed regardless of the adjustment. It is possible to realize the eyeglass-type display device in which the positions of the left and right virtual images to be viewed can be matched and all users can view the image well. Further, the virtual image display position according to the adjusted interpupillary distance and diopter is indicated on the scale so that the virtual image display position can be confirmed from the outside, so that the usability for the user can be significantly improved.

Further, according to the present invention, since the head mounting member is configured so that the image display unit can rotate about the temporal region and the center of the eyeball, the user can view the image at a natural position. In addition, by flipping up the image display unit and its supporting portion to the upper part, it is possible to avoid obstruction of viewing the outside while wearing the image display unit. Further, by providing a predetermined weight on the back of the head, it is possible to reduce the burden on the head. Thus, a spectacle-type display device with significantly improved usability for the user and high utility can be realized.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of an embodiment of a spectacles type display device according to the present invention.

FIG. 2 is a perspective view for explaining an optical system of a spectacle-type display device.

FIG. 3 is a perspective view for explaining the mechanical arrangement of the eyeglass-type display device.

FIG. 4 is a perspective view for explaining the appearance of a mechanism portion of the eyeglass-type display device.

FIG. 5 is a schematic diagram used to explain an optical system for diopter adjustment in a spectacle-type display device.

FIG. 6 is a schematic perspective view showing a mechanism for instructing an interpupillary distance in an eyeglass-type display device.

FIG. 7 is a plan view showing a mechanism for instructing an interpupillary distance in an eyeglass-type display device.

FIG. 8 is a rear view showing a mechanism for instructing an interpupillary distance in the eyeglass-type display device.

FIG. 9 is a schematic perspective view showing a mechanism for instructing a virtual image display position in an eyeglass-type display device.

FIG. 10 is a side view showing a mechanism for instructing a virtual image display position in the glasses-type display device.

FIG. 11 is a schematic perspective view showing the external appearance of the head mounting portion of the spectacles type display device.

FIG. 12 is a schematic diagram for explaining the operation of the head-mounted part of the spectacle-type display device.

FIG. 13 is a cross-sectional view showing a configuration of a head mounting portion of the eyeglass-type display device.

FIG. 14 is an exploded perspective view showing a configuration of a head mounting portion of the spectacles type display device.

FIG. 15 is a schematic perspective view showing a head mounting portion according to another embodiment.

FIG. 16 is a schematic diagram for explaining movement of a virtual image by diopter adjustment in a conventional eyeglass-type display device.

[Explanation of symbols]

1L, 1R ... left and right display parts, 2L, 2R ... left and right lens systems, 3 ... beam splitter, 4 ... liquid crystal shutter, 5 ... housing, 6 ... head mounting member, 7 ... Holder table, 11L, 11R ... Linear slider, 12,
13: slider shaft, 14: knob for adjusting diopter, 1
9L, 19R ... Pin, 21L, 21R ... Linear slider, 22 ... Slider shaft, 29L, 29R ... Vertical groove,
31 ... Knob for adjusting interpupillary distance, 32 ... Gear, 3
3 ... Half moon gear, 34L, 34R ... Drive gear, 35
L, 35R: fan gear, 36L, 36R: first sliding arm, 37: turning shaft, 38L, 38R
Joint plate, 39L, 39R ... Second sliding arm, 40L, 40R ... Rotating shaft, 41L, 41R Slide pin, 42L, 42R ... Long hole, 50 ... External case, 51 ... Shaft, 52 ...... Drive gear, 53 ……
Synchronous gear, 54 ... fan gear, 55 ... scale indicator member,
56 ... pupil distance scale, 60 ... mounting plate, 61 ...
... Scale side plate, 62 ... virtual image position indicating plate, 63 ... scale center member, 64 ... virtual image position scale, 71 ... image display section,
72: peripheral fixing band, 73: weight supporting band, 7
4 ... Mechanism support arm, 75 ... Image display support band, 76 ... Weight arm, 77 ... Balance weight,
78: Weight suppression, 79: Temporal shaft shift, 80 ...
… Temporal spring, 81 …… Band receiver, 82 …… Temporal heading, 83 …… Temporal stop ring, 84 …… Eyeball center shaft shift, 85 …… Eyeball center spring, 86 …… Eyeball center stop ring.

Claims (7)

[Claims] 1. Eyeglasses which are provided with left and right display portions, and are provided with left and right lens systems for images displayed on the left and right display portions, respectively, for observing a virtual image obtained through the left and right lens systems. In the type display device, the left and right lens systems are moved symmetrically according to the interpupillary distance of the user, and the center point of the left and right lens systems and the left and right lens systems are moved on the principal point axes of the left and right lens systems. On the line segment connecting the focal points of the lens system, the left and right display units are respectively moved, and by linking with the movement of the left and right lens systems, the line segments are opened and closed symmetrically, so that the interpupillary distance is increased. Regardless of this, even if the distance between the left and right display units and the left and right lens systems changes due to diopter adjustment, the positions of the left and right virtual images that are viewed are matched. Type display A device. 2. Eyeglasses which are provided with left and right display parts, and left and right lens systems are provided for images displayed on the left and right display parts, respectively, for observing a virtual image obtained through the left and right lens systems. Type display device, a moving mechanism that moves the left and right lens systems symmetrically according to the interpupillary distance, and a center point of the left and right lens systems and the left and right lens systems on the principal axis of the left and right lens systems. Link the left and right slide mechanisms that slide along the line connecting the focal points of the lens system and the moving mechanism of the left and right lens systems so that the left and right slide mechanisms maintain the relationship along the line segment. The left and right display parts are attached to the left and right slide mechanisms, respectively, and the left and right display parts are respectively moved on the line segment. And, regardless of the above interpupillary distance,
An eyeglass-type display device characterized in that the positions of the left and right virtual images to be viewed coincide with each other even if the distance between the left and right display units and the left and right lens systems changes due to the diopter adjustment. 3. The interpupillary distance calibrating means for displaying the interpupillary distance in response to the bilaterally symmetrical movement of the left and right lens systems, according to claim 1 or claim 2. Glasses type display device. 4. A virtual image for displaying the display position of the virtual image in response to movement of the left and right display portions on a line segment connecting a center point of the left and right lens systems and a focal point of the left and right lens systems. The spectacles type display device according to claim 1 or 2, further comprising display position graduation means. 5. The image display unit on which the left and right display units and the left and right lens systems are arranged is rotatably held around the eyeball as seen from the side of the user, and the image display unit is moved back and forth. The eyeglass-type display device according to claim 1, claim 2, claim 3, or claim 4, further comprising a head mounting means for holding the head in a posable manner. 6. The spectacles type display device according to claim 5, wherein the head mounting means holds the image display unit so that the image display unit can be flipped up above both eyes of a user. 7. The eyeglass-type display device according to claim 5, wherein the head mounting means includes a weight on the back of the head corresponding to the weight of the image display unit.