Video display device

Abstract

To eliminate image misalignment due to individual differences among users when an image is configured to be visible with both the left and right eyes.SOLUTION: A video display device includes a mounting unit to be mounted on a user, a pair of image forming units, a pair of optical systems that direct light from the pair of image forming units to the right or left eye of the user, and a pair of movable units that move each of the pair of optical systems independently in three dimensions.SELECTED DRAWING: Figure 1-1

Description

[Technical Field]

[0001] The present invention relates to a video display device. [Background technology]

[0002] BACKGROUND ART It is already known that there exist, as video display devices, head mounted displays (HMDs) and smart glasses capable of augmented reality (AR).

[0003] Patent Document 1 discloses a glasses-shaped device that can project an image from an image display element as a virtual digital image to both the left and right eyes of a user and display the virtual image superimposed on real space. Summary of the Invention [Problem to be solved by the invention]

[0004] However, with conventional devices, when configured to enable viewing of images with both the left and right eyes, there is room for improvement in that it is not possible to eliminate image misalignment due to individual differences among users, etc. For example, with conventional devices, there are problems such as the left and right images not matching when viewed with both eyes, appearing doubly misaligned, or even if the left and right images match, not being displayed at the desired position in real space, or the virtual image distance, such as in front or behind, not being the desired distance.

[0005] The present invention has been made in consideration of the above, and aims to eliminate image misalignment due to individual differences among users when an image is configured to be visible with both the left and right eyes. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the object, the present invention is characterized by comprising a mounting unit to be mounted on a user, a pair of image forming units, a pair of optical systems that direct light from the pair of image forming units to the right eye or left eye of the user, and a pair of movable units that move each of the pair of optical systems independently in three-dimensional directions. [Effects of the Invention]

[0007] According to the present invention, when an image is configured to be visible with both the left and right eyes, it is possible to eliminate image misalignment due to individual differences among users. [Brief explanation of the drawings]

[0008] [Figure 1-1] FIG. 1-1 is a diagram illustrating a user wearing a video display device according to a first embodiment. [Figure 1-2] FIG. 1-2 is a perspective view showing a video display device fixing portion that constitutes the video display device. [Figure 1-3] FIG. 1-3 is a perspective view showing a moving part of the image display device that constitutes the image display device. [Figure 2-1] FIG. 2-1 is a diagram showing an example of horizontal movement of two movable parts of the left and right image display devices. [Figure 2-2] FIG. 2-2 is a diagram showing another example of horizontal movement of the two image display device movable parts on the left and right. [Figure 3] FIG. 3 is a diagram showing the vertical movement of the two image display device movable parts on the left and right. [Figure 4] FIG. 4 is a diagram showing the rotation and adjustment of the image display device. [Figure 5-1] FIG. 5-1 is a perspective view showing a movable part of the image display device for the right eye. [Figure 5-2] FIG. 5-2 is an exploded perspective view showing the internal configuration of the movable part of the image display device for the right eye. [Figure 6-1] FIG. 6-1 is a perspective view showing the configuration of the frame. [Figure 6-2] FIG. 6-2 is a perspective view showing the configuration of the bracket from above. [Figure 6-3] FIG. 6-3 is a perspective view showing the configuration of the bracket from the bottom. [Figure 7-1] FIG. 7-1 is a diagram showing the positions of the fitting holes and the fitting bosses. [Figure 7-2] FIG. 7-2 is a diagram showing a mechanism for moving a virtual image in the depth direction. [Figure 7-3] FIG. 7-3 is a diagram showing a mechanism for moving a virtual image toward the front. [Figure 8-1] FIG. 8-1 is a perspective view showing the configuration of the frame. [Figure 8-2] FIG. 8-2 is a perspective view showing the configuration of the bracket from the inside. [Figure 8-3] FIG. 8-3 is a perspective view showing the configuration of the bracket from the outside. [Figure 8-4] FIG. 8-4 is a diagram showing a manner in which the image display device movable part is attached to the image display device fixed part. [Figure 8-5] FIG. 8-5 is a diagram showing the relationship between the female screw shape and the elongated hole. [Figure 9-1] FIG. 9-1 is a diagram illustrating the configuration of a virtual image display unit for the right eye. [Figure 9-2] FIG. 9-2 is a diagram showing the configuration of the bracket for the right eye. [Figure 10] FIG. 10 is a diagram showing the positional relationship between the virtual image display unit and the bracket with respect to the head of the user when the user wears the image display device. [Figure 11-1] FIG. 11-1 is a diagram illustrating an upper portion of a connection configuration between the virtual image display unit and the bracket. [Figure 11-2] FIG. 11-2 is a diagram illustrating the upper part of the connection structure between the virtual image display unit and the bracket. [Figure 12-1] FIG. 12-1 is a perspective view showing the overall configuration of the pressing member. [Figure 12-2] FIG. 12-2 is a perspective view showing a manner in which the pressing member is attached to the virtual image display unit. [Figure 12-3] FIG. 12-3 is a diagram illustrating the operation of the pressing member. [Figure 13]FIG. 13 is a diagram illustrating a video display device according to the second embodiment. [Figure 14] FIG. 14 is a diagram showing the problems of the conventional technology. [Figure 15] FIG. 15 is a diagram showing the effect when a video display device is used. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a video display device will be described in detail below with reference to the accompanying drawings.

[0010] (First embodiment) Here, Fig. 1-1 is a diagram showing a user wearing an image display device 1 according to the first embodiment, Fig. 1-2 is a perspective view showing an image display device fixed part 11 constituting the image display device 1, and Fig. 1-3 is a perspective view showing an image display device movable part 12 constituting the image display device 1. Note that Fig. 1-2(a) shows the image display device fixed part 11 from the front side, and Fig. 1-2(b) shows the image display device fixed part 11 from the back side. Similarly, Fig. 1-3(a) shows the image display device movable part 12 from the front side, and Fig. 1-3(b) shows the image display device movable part 12 from the back side.

[0011] 1-1 to 1-3, the image display device 1 includes an image display device fixed part 11 whose position is fixed after being worn by a user, and two image display device movable parts 12, one on the left and one on the right, whose positions can be changed even after being worn by a user. That is, the image display device 1 is configured to be divided into the image display device fixed part 11 whose position is fixed relative to the user's head when worn by a user, and the image display device movable parts 12 whose position can be changed relative to the user's head. The image display device fixed part 11 is a wearing part worn by a user.

[0012] The image display device movable section 12, which will be described in detail later, holds optical components such as an image display element, a propagation optical system, and a light guide member. The image display device movable section 12 can move independently on the left and right sides in the horizontal and vertical directions.

[0013] As shown in FIG. 1-2, the image display device fixed part 11 includes a frame 111 to which the image display device movable part 12 is attached.

[0014] Fig. 2-1 is a diagram showing an example of horizontal movement of the two image display device movable parts 12. Fig. 2-1 shows that the movement on the horizontal plane of each of the image display device movable parts 12 for the right and left eyes is a rotatable movement around a certain point.

[0015] As shown in Fig. 2-1(a), the image display device 1 can move the left-eye virtual image and the right-eye virtual image to any position to the left or right in the horizontal direction by individually rotating the image display device movable part 12. This action allows the image display device 1 to align virtual images that are shifted horizontally with each other when viewed with both eyes, as shown in Fig. 2-1(b).

[0016] Figure 2-2 is a diagram showing another example of horizontal movement of the two image display device movable parts 12. Figure 2-2 also shows that the movement on the horizontal plane of the image display device movable parts 12 for the right and left eyes is a rotatable movement around a certain point.

[0017] Furthermore, the image display device 1 can move the matched virtual image horizontally to the left (FIG. 2-2(a)) or to the right (FIG. 2-2(b)) by rotating and adjusting the left and right image display device movable parts 12. Similarly, the image display device 1 can change the virtual image distance in the depth direction by moving the virtual image backward (FIG. 2-2(c)) or forward (FIG. 2-2(d)) by rotating and adjusting the left and right image display device movable parts 12.

[0018] With the above configuration, as shown in Figures 2-1 and 2-2, the image display device 1 can rotate the left and right image display device movable parts 12 individually horizontally to any position, thereby allowing the left and right images (virtual images) that are horizontally shifted to be viewed with both eyes and matched, the matched images (virtual images) to the left or right, and the virtual image distance to be moved forward or backward.

[0019] Fig. 3 shows the vertical movement of the two image display device movable parts 12 for the left and right eyes. Fig. 3 shows that the movement on the vertical plane of each of the image display device movable parts 12 for the right and left eyes is a rotatable movement around a certain point.

[0020] 3, the image display device 1 can move the left-eye virtual image and the right-eye virtual image to any position in the vertical direction by individually rotating the left and right image display device movable units 12. This action allows the image display device 1 to align the virtual images that are displaced in the vertical direction with both eyes (FIG. 3(a)).

[0021] In addition, the image display device 1 can move the matched virtual image upward (Figure 3(b)) or downward (Figure 3(c)) by adjusting the rotation of the left and right image display device movable parts 12.

[0022] With the above configuration, as shown in Figure 3, the image display device 1 can rotate the left and right image display device movable parts 12 individually in the vertical direction to any position, so that the left and right images (virtual images) that are shifted in the vertical direction can be viewed with both eyes and aligned, and the aligned images (virtual images) can be moved upward or downward.

[0023] Here, FIG. 4 is a diagram showing the rotation and adjustment of the image display device 1. As shown in FIG.

[0024] As shown in Fig. 4, when a user U wears the image display device 1, even if the left and right virtual images are initially displayed out of alignment, the user U can rotate and adjust the left and right image display device movable parts 12 in the horizontal and vertical directions to align the out-of-alignment virtual images viewed with both eyes. Furthermore, the example shown in Fig. 4 shows an example in which the virtual image can be moved to a desired position in real space (inside a plate on a table).

[0025] As shown in Figure 4(a), by adjusting the image display device movable part 12 of the image display device 1, it is possible to match the left and right virtual images seen with both eyes, or to move them to a desired position in real space, as shown in Figure 4(b).

[0026] Next, a detailed description will be given of the internal configuration of the image display device movable part 12. Note that, although the following description will be given taking the image display device movable part 12 for the right eye as an example, the image display device movable part 12 for the left eye has a similar configuration.

[0027] Here, FIG. 5-1 is a perspective view showing the movable part 12 of the image display device for the right eye, and FIG. 5-2 is an exploded perspective view showing the internal configuration of the movable part 12 of the image display device for the right eye.

[0028] As shown in Fig. 5-1 and Fig. 5-2, the image display device movable part 12 includes a bracket 125 and a virtual image display part 126. The bracket 125 is a member that is connected to the image display device fixed part 11 in a state that allows it to rotate horizontally. The virtual image display part 126 is a member that displays a virtual image.

[0029] As shown in Figure 5-2, the movable part 12 of the image display device includes, inside the virtual image display part 126, an image display element 121 which is an image forming part that emits and outputs image light of a virtual image, an electric board 122 that drives and controls the image display element 121, a propagation optical system 123, and a light-guiding member 124.

[0030] The image display element 121 may be a micro LED, an organic light emitting diode (OLED), a digital micromirror device (DMD), a thin film transistor (TFT), a liquid crystal on silicon (LCOS), or the like.

[0031] The propagation optical system 123 propagates the light emitted from the image display element 121. The propagation optical system 123 includes a folding mirror 1231, a relay optical system 1232, and a collimator optical system 1233. The folding mirror 1231 totally reflects the light emitted from the image display element 121 at an angle of 90 degrees. The relay optical system 1232 magnifies the light emitted from the image display element 121. The collimator optical system 1233 converges the diffused light emitted from the relay optical system 1232 into parallel light.

[0032] The light guiding member 124 receives the light emitted from the collimator optical system 1233, guides the light inside, and reflects it toward the pupil.

[0033] The propagation optical system 123 and the light guiding member 124 constitute a pair of optical systems that guide light from the image display element 121 to the right or left eye of the user. The image display device movable unit 12 is a pair of movable units that independently move each of the pair of optical systems (the propagation optical system 123 and the light guiding member 124) in three-dimensional directions.

[0034] Next, the assembly of the image display device movable part 12 to the image display device fixed part 11 will be described.

[0035] Here, FIG. 6-1 is a perspective view showing the configuration of the frame 111, FIG. 6-2 is a perspective view showing the configuration of the bracket 125 from above, and FIG. 6-3 is a perspective view showing the configuration of the bracket 125 from below.

[0036] As shown in FIG. 6-1, the image display device fixed part 11 has a frame 111, which is one of the components of the image display device fixed part 11, and a fitting hole 1111, which is a hole shape for fitting the image display device movable part 12 into.

[0037] 6-2 and 6-3, the image display device movable part 12 has fitting bosses 1251, which are boss-shaped, for fitting into the fitting holes 1111, on a bracket 125, which is one of the components of the image display device movable part 12. Each fitting boss 1251 is provided at a position where it fits into the fitting hole 1111 of the frame 111 when the image display device movable part 12 is assembled to the image display device fixed part 11.

[0038] Here, Fig. 7-1 is a diagram showing the positions of the fitting hole 1111 and the fitting boss 1251. The diagram shown in Fig. 7-1(a) is a diagram showing a horizontal plane passing through the centers of the pupils of both the left and right eyes as seen from directly above, and Fig. 7-1(b) is an enlarged view showing the vicinity of both the left and right eyes.

[0039] As shown in Fig. 7-1, a fitting boss 1251, which is a boss shape of the image display device movable part 12, fits into a fitting hole 1111, which is a hole shape of the image display device fixed part 11. In the image display device 1, the image display device movable part 12 can rotate with respect to the image display device fixed part 11, with this fitting point as the rotation center.

[0040] As shown in Figure 7-1(b), the fitting hole 1111 and the fitting boss 1251 are positioned at a predetermined distance from the pupil. This predetermined distance is characterized by being set to a distance shorter than the eye relief (the distance from the eyepiece to the eye at which the entire field of view can be seen).

[0041] With this configuration, the image display device 1 allows the user to view the entire field of view of the virtual image. As shown in FIGS. 2-1 and 2-2, the image display device 1 allows the user to view the left-eye virtual image and the right-eye virtual image with both eyes and to match them, and to freely move the matched images horizontally left and right, by rotating and adjusting the image display device movable unit 12 in the horizontal direction. The image display device 1 also allows the user to move the virtual image forward or backward in the depth direction.

[0042] Here, Fig. 7-2 is a diagram showing the mechanism that can move the virtual image in the depth direction. As shown in Fig. 7-2, when the left and right image display device movable parts 12 are rotated in the closing direction, the convergence angle narrows and the virtual image distance becomes longer, so the virtual image moves to the back.

[0043] Here, Fig. 7-3 shows the mechanism that can move the virtual image toward you. As shown in Fig. 7-3, when the left and right image display device movable parts 12 are rotated in the opening direction, the convergence angle widens and the virtual image distance becomes shorter, so the virtual image moves toward you.

[0044] With this configuration, the image display device 1 has the effect of being able to view the left and right virtual images that are shifted horizontally with both eyes and align them while maintaining the ability to see the entire field of view of the virtual image, and of being able to move the aligned virtual image horizontally leftward or rightward.Similarly, the image display device 1 has the effect of being able to change the virtual image distance in the depth direction by moving the virtual image further back or forward.

[0045] Next, the switching between the state in which the image display device movable part 12 is rotatable relative to the image display device fixed part 11 and the state in which it is fixed at that position will be described.

[0046] Here, FIG. 8-1 is a perspective view showing the configuration of the frame, FIG. 8-2 is a perspective view showing the configuration of the bracket from the inside, and FIG. 8-3 is a perspective view showing the configuration of the bracket from the outside.

[0047] As shown in FIG. 8-1, a frame 111, which is one of the components of the image display device fixed part 11, is provided with a long hole 1112 having a long hole shape.

[0048] 8-2 and 8-3, the bracket 125, which is one of the components of the image display device movable part 12, is provided with female threads 1252. Each female thread 1252 is provided at a position facing the long hole 1112 of the frame 111 when the image display device movable part 12 is assembled to the image display device fixed part 11.

[0049] 8-4 is a diagram showing how the image display device movable part 12 is attached to the image display device fixed part 11. As shown in FIG. 8-4, the image display device movable part 12 is fixed to the image display device fixed part 11 from below by a thumb screw 13 passing through the elongated hole 1112 and screwing into the female thread shape 1252.

[0050] Here, FIG. 8-5 is a diagram showing the relationship between the female screw shape 1252 and the elongated hole 1112. When the image display device movable part 12 rotates in a rotatable state, the female screw shape 1252 moves within the elongated hole 1112 as shown in FIG. 8-5. That is, this movement is possible when the thumbscrew 13 is loosened, but the positional relationship between the elongated hole 1112 and the female screw shape 1252 is fixed when the thumbscrew 13 is tightened. The thumbscrew 13, the elongated hole 1112, and the female screw shape 125 are a first fixing part that fixes rotation in the direction in which the pair of optical systems (the propagation optical system 123 and the light-guiding member 124) of the image display device movable part 12 are aligned.

[0051] The above configuration has the effect of allowing switching between a state in which the image display device movable part 12 is rotatable relative to the image display device fixed part 11 and a state in which it is fixed in that position. This configuration and action has the effect that when rotating and adjusting the image display device movable part 12 in the horizontal direction, the thumbscrew 13 is loosened, and after adjustment, the thumbscrew 13 can be tightened to maintain that state.

[0052] In other words, the above configuration has the effect of enabling adjustments to align left and right images that are shifted horizontally, and of enabling the aligned virtual image to be moved to a desired position on the horizontal plane, either to the left or right, or further back or closer, and maintaining that state after adjustment.

[0053] Next, the configuration of the two image display device movable parts 12, one for the right eye and one for the left eye, will be described in detail. As shown in Fig. 5-1, the image display device movable part 12 includes a bracket 125 for connecting the image display device movable part 12 to the image display device fixed part 11 in a state where the image display device movable part 12 can rotate horizontally, and a virtual image display part 126. As shown in Fig. 5-2, the virtual image display part 126 includes an image display element 121, a propagation optical system 123, and a light-guiding member 124 therein.

[0054] Fig. 9-1 is a diagram showing the configuration of the right-eye virtual image display unit 126. Fig. 9-1(a) is a diagram showing the right-eye virtual image display unit 126 as seen from above, and Fig. 9-1(b) is a diagram showing the right-eye virtual image display unit 126 as seen from below.

[0055] Fig. 9-2 is a diagram showing the configuration of the right eye bracket 125. Fig. 9-2(a) is a diagram showing the right eye bracket 125 as seen from above, and Fig. 9-2(b) is a diagram showing the right eye bracket 125 as seen from below.

[0056] As shown in FIGS. 9-1(a) and 9-1(b), the virtual image display unit 126 has a half-moon protrusion 1261 and a half-moon protrusion 1262, which are half-moon shaped protrusions on the top and bottom.

[0057] 9-2(a) and 9-2(b), the bracket 125 has a half-moon recess 1255, which is a half-moon concave shape, to receive the half-moon protrusion 1261 of the virtual image display unit 126. The bracket 125 also has a half-moon recess 1254, which is a half-moon concave shape, to receive the half-moon protrusion 1262 of the virtual image display unit 126.

[0058] Next, the positional relationship between the virtual image display unit 126 and the bracket 125 with respect to the head of the user when the user wears the image display device 1 will be described.

[0059] Fig. 10 is a diagram showing the positional relationship of the virtual image display unit 126 and the bracket 125 with respect to the head of the user when the user wears the image display device 1. Fig. 10 is a side view of a vertical plane when the user wears the image display device 1. Fig. 10(a) shows the positional relationship of the virtual image display unit 126 with respect to the head of the user, and Fig. 10(b) shows the positional relationship of the bracket 125 with respect to the head of the user.

[0060] As shown in FIG. 10(a), when the user wears the image display device 1, the center of the circle formed by the crescent protrusions 1261 and 1262 provided on the virtual image display unit 126 approximately coincides with the center of the user's eyeball.

[0061] Similarly, as shown in FIG. 10(b), when the user wears the image display device 1, the centers of the circular shapes of the crescent recesses 1255 and 1254 provided on the bracket 125 also approximately coincide with the center of the user's eyeball.

[0062] With the above configuration, as shown in Fig. 3, the left and right image display device movable units 12 can be individually rotated around the center of the user's eyeballs in a vertical plane, which allows the left eye virtual image and the right eye virtual image to be moved to any desired position in the vertical direction. This action has the effect of allowing images that are offset in the vertical direction to be viewed by both eyes and aligned. Furthermore, by adjusting the rotation of the left and right image display device movable units 12, the aligned virtual images can be moved upward or downward.

[0063] Next, a detailed description will be given of the connection structure between the virtual image display unit 126 and the bracket 125. As shown in Fig. 5-1, the bracket 125 and the virtual image display unit 126 connect the image display device movable unit 12 to the image display device fixed unit 11 in a state in which the image display device movable unit 12 can rotate horizontally.

[0064] 11-1 is a diagram showing an upper part of the connection configuration between the virtual image display unit 126 and the bracket 125, and FIG. 11-2 is a diagram showing a lower part of the connection configuration between the virtual image display unit 126 and the bracket 125. As shown in FIG.

[0065] As shown in FIG. 9-2, the image display device movable portion 12 includes a half-moon recess 1255 and a half-moon recess 1254 on the bracket 125.

[0066] 11-1(a), the image display device movable part 12 is provided with a crescent-shaped pressing meniscus 14 at a position facing the crescent-shaped recess 1255 of the bracket 125. Similarly, as shown in FIG. 11-2(a), the image display device movable part 12 is provided with a crescent-shaped pressing meniscus 15 at a position facing the crescent-shaped recess 1254 of the bracket 125.

[0067] 11-1(b) and 11-1(c), the pressing meniscus 14 presses and fixes the crescent protrusion 1261 to the crescent recess 1255 by the pressure of the pressing member 16. Also, as shown in FIGS. 11-2(b) and 11-2(c), the pressing meniscus 15 presses and fixes the crescent protrusion 1262 to the crescent recess 1254 by the pressure of the pressing member 16.

[0068] Here, the configuration and operation of the pressing member 16 will be described in detail.

[0069] 12-1 is a perspective view showing the overall configuration of the pressing member 16, FIG. 12-2 is a perspective view showing the manner in which the pressing member 16 is attached to the virtual image display unit 126, and FIG. 12-3 is a diagram showing the operation of the pressing member 16.

[0070] 12-1 and 12-2, the pressing member 16 includes two V-shaped holding portions 16a and a connecting portion 16b that connects the two V-shaped holding portions 16a. The connecting portion 16b is formed in a U-shape so as to straddle the virtual image display unit 126. The pressing member 16 also includes a step 16c that fits into the crescent-shaped holding meniscus 14 (holding meniscus 15) on the holding portion 16a's side facing the holding meniscus 14 (holding meniscus 15).

[0071] As shown in FIGS. 12-3(a) and 12-3(b), when the pressing member 16 is moved in the direction of arrow A relative to the bracket 125, the step 16c and the presser meniscus 14 (presser meniscus 15) fit together, and a force in the direction of arrow B acts on the presser meniscus 14 (presser meniscus 15) due to the repulsive force of the pressing portion 16a of the pressing member 16 acting against the presser meniscus 14. Due to this pressing force of the pressing member 16, a crescent protrusion 1261 formed integrally with the virtual image display unit 126 is sandwiched between the crescent recess 1255 and the presser meniscus 14. Similarly, due to the pressing force of the pressing member 16, a crescent protrusion 1262 formed integrally with the virtual image display unit 126 is sandwiched between the crescent recess 1254 and the presser meniscus 15. As a result, the virtual image display unit 126 is held and fixedly connected to the bracket 125.

[0072] 12-3(c), when the pressing member 16 is moved in the direction of arrow C relative to the bracket 125, the engagement between the step 16c and the pressing meniscus 14 (pressing meniscus 15) is released, and the repulsive force of the pressing portion 16a of the pressing member 16 against the pressing meniscus 14 disappears, so that the force from the pressing member 16 to the pressing meniscus 14 (pressing meniscus 15) is no longer applied. As a result, the clamping force between the meniscus recess 1255 and the pressing meniscus 14 and the clamping force between the meniscus recess 1254 and the pressing meniscus 15 weaken, and the virtual image display unit 126 becomes rotatable relative to the bracket 125.

[0073] With the above configuration, the left and right image display device movable parts 12 each realize an action that allows them to switch between a state in which they are rotatable around the center of the user's eyeball as the center of rotation in a vertical plane and a state in which they are fixed in that position. With this configuration and action, when rotating or adjusting the image display device movable parts 12 in the vertical direction, the pressing member 16 is moved in the direction of arrow A, and after adjustment, the pressing member 16 can be moved in the direction of arrow C to maintain that state. The pressing member 16 and the pressing meniscus 14 are a second fixing part that fixes the rotation of the image display device movable parts 12 in a direction perpendicular to the direction in which the pair of optical systems (the propagation optical system 123 and the light guide member 124) are aligned.

[0074] In addition, the above configuration has the effect of enabling adjustment to align left and right images that are vertically shifted, and of enabling an adjustable state in which the aligned virtual image can be moved to a desired position in the vertical direction, and of maintaining that state after adjustment.

[0075] As described above, according to this embodiment, the image display device fixed part 11 is provided with the image display device movable part 12 that enables the propagation optical system 123 for the right eye and the light guiding member 124 to be moved independently. Therefore, when the image is configured to be visible with both the left and right eyes, by adjusting the image display device movable part 12, the left and right virtual images can be viewed with both eyes and made to match, or the virtual image can be superimposed at a desired position in real space, thereby eliminating image misalignment due to individual differences among users, etc.

[0076] (Second embodiment) Next, a second embodiment will be described.

[0077] The second embodiment differs from the first embodiment in that a camera 20 is provided on the image display device fixed part 11. In the following description of the second embodiment, the description of the same parts as in the first embodiment will be omitted, and only the parts that differ from the second embodiment will be described.

[0078] 13A and 13B are diagrams showing an image display device 1 according to the second embodiment, in which Fig. 13A is a perspective view showing the overall configuration of the image display device 1, and Fig. 13B is a cross-sectional view of the image display device 1 taken along a horizontal plane.

[0079] 13, the image display device 1 of this embodiment includes a camera 20, which is an imaging device, on an image display device fixed unit 11. The image display device 1 can share images of real space captured by the camera 20 with people who are not present at the site via a network.

[0080] With the above configuration, the image display device 1 of this embodiment can be used as a field work support tool between a user who is a field worker wearing the image display device 1 of this embodiment and a remote supporter of the field work who is located away from the field.

[0081] Here, the problems with the conventional technology will be described.

[0082] Fig. 14 is a diagram illustrating a conventional problem. In the case of conventional image display devices with built-in cameras, such as AR glasses, it is possible to share the real space seen by an on-site worker with a remote supporter located far from the site via a network in the form of a video captured by the camera, as shown in Fig. 14. However, the virtual image indicated by the remote supporter may differ from the image captured by the camera in the real space, which can cause problems in communication.

[0083] FIG. 15 is a diagram showing the effect of using the image display device 1. In FIG.

[0084] On the other hand, when the image display device 1 of this embodiment is used, as shown in Fig. 15, a video captured by the camera 20 of the real space can be shared with a remote supporter who is located away from the site. Furthermore, the remote supporter places a virtual image in a known location, and the on-site worker can perform a calibration work to adjust and place the virtual image in its original position. This action has the effect of eliminating the discrepancy between the image captured by the camera 20 of the image display device 1 of this embodiment and the real space, and the virtual image specified by the remote supporter is placed in the optimal position in the real space.

[0085] According to this embodiment, the real space seen by the user wearing the image display device 1 can be shared with a third party as a camera image, and the user can place the virtual image placed by the third party at the desired position in the real space, thereby calibrating the real space and the camera image, thereby enabling communication with the third party via the virtual image.

[0086] For example, aspects of the present invention are as follows. <1> a mounting unit to be mounted on a user; a pair of image forming units; a pair of optical systems that guide light from the pair of image forming units to the right eye or left eye of the user; a pair of movable units that independently move each of the pair of optical systems in three-dimensional directions; A video display device comprising: <2> the pair of movable parts each incorporate the pair of image forming parts and the pair of optical systems; 2. The image display device according to claim 1, wherein: <3> The pair of movable parts are rotatable on a horizontal plane around a point that is a predetermined distance away from the right eye or the left eye of the user as a rotation center. Characterized by <1> or <2> The image display device according to claim 1. <4> The pair of movable parts are switchable between a state in which they can rotate around a point that is a predetermined distance away from the right eye or the left eye of the user as a rotation center and a state in which they are fixed at that position. Characterized by <3> The image display device according to claim 1. <5> a first fixing portion that fixes the rotation of the movable portion in the direction in which the pair of optical systems are aligned; Characterized by <4> The image display device according to claim 1. <6> a second fixing portion that fixes the rotation of the movable portion in a direction perpendicular to the direction in which the pair of optical systems are aligned, Characterized by <4> The image display device according to claim 1. <7> The pair of movable parts are rotatable in a vertical plane around the center of an eyeball of the right eye or the left eye of the user. Characterized by <1> Or <6> 10. The image display device according to claim 9, wherein: <8> The pair of movable parts are switchable between a state in which they are rotatable around the center of the eyeball of the right eye or the left eye of the user as a rotation center and a state in which they are fixed at that position. Characterized by <7> The image display device according to claim 1. <9> The mounting unit includes an imaging device. Characterized by <1> Or <8> 10. The image display device according to claim 9, wherein: [Explanation of symbols]

[0087] 1. Video display device 11 Mounting part 12 Pair of moving parts 13,125,1112 1st fixed part 14,16 Second fixed part 20 Imaging device 121 Image forming unit 123,124 Pair of optical systems [Prior art documents] [Patent documents]

[0088] [Patent Document 1] Japanese Patent Publication No. 2021-119376

Claims

1. a mounting unit to be mounted on a user; a pair of image forming units; a pair of optical systems that guide light from the pair of image forming units to the right eye or left eye of the user; a pair of movable units that move the pair of optical systems independently in three-dimensional directions; A video display device comprising:

2. the pair of movable parts each incorporate the pair of image forming parts and the pair of optical systems; 2. The image display device according to claim 1.

3. The pair of movable parts are rotatable on a horizontal plane around a point that is a predetermined distance away from the right eye or the left eye of the user as a rotation center.

2. The image display device according to claim 1.

4. The pair of movable parts are switchable between a state in which they can rotate around a point that is a predetermined distance away from the right eye or the left eye of the user as a rotation center and a state in which they are fixed at that position.

4. The image display device according to claim 3.

5. a first fixing portion that fixes the rotation of the movable portion in the direction in which the pair of optical systems are aligned; 5. The image display device according to claim 4.

6. a second fixing portion that fixes the rotation of the movable portion in a direction perpendicular to the direction in which the pair of optical systems are arranged, 5. The image display device according to claim 4.

7. The pair of movable parts are rotatable in a vertical plane around the center of an eyeball of the right eye or the left eye of the user.

2. The image display device according to claim 1.

8. The pair of movable parts are switchable between a state in which they can rotate around the position of the eyeball center of the user's right eye or left eye as a rotation center and a state in which they are fixed at that position.

8. The image display device according to claim 7,

9. The mounting unit includes an imaging device.

9. The image display device according to claim 1, wherein the image display device is a display device having a display unit.

Images