Wearing device

Abstract

This device provides a fitting device that reduces the time required for position adjustment during fitting, eliminates the inability to wear the device or causes discomfort, and improves usability by allowing for easy attachment and detachment with minimal force. [Solution] The mounting device 200 comprises a mounting section 201 on which the video display device 100 is mounted, and a pair of lateral sections 203L and 203R extending in a bent direction from the left and right ends of the mounting section 201. The lateral sections 203L and 203R have arm members 204L and 204R that are movable along the longitudinal direction, and when the lateral sections 203L and 203R are extended in the longitudinal direction, the arm members 204L and 204R become movable in a direction different from the longitudinal direction.

Description

Technical Field

[0001] The present disclosure relates to a wearable device.

Background Art

[0002] In recent years, head-mounted displays (HMDs) that are worn on a user's head and display images in front of the user's eyes have come to be used. HMDs are used as devices that can experience virtual reality (VR) and mixed reality (MR) because they allow users to easily view images on a large screen and provide easy stereoscopic viewing.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] As HMDs, there are those having a ring-shaped head-mounted unit that wraps around the user's head as disclosed in Patent Document 1, and those having a head-mounted unit that holds and sandwiches the user's temporal region as disclosed in Patent Document 2. In the HMD of Patent Document 1, since the user wears the ring part from above the head, it is necessary to adjust the position after roughly aligning it because the display image cannot be seen, and there are problems such as the position adjustment taking time. In the HMD of Patent Document 2, since the shape is open on the back of the head side unlike the ring-shaped head-mounted part, the user can wear the HMD while approaching the head from the front and aligning the position while viewing the display image. Therefore, in the HMD of Patent Document 2, the position adjustment does not take time.

[0005] However, heavy HMDs place a significant load on the ears and nose, potentially leading to wearability issues or discomfort. Even in designs that secure the head, such as the HMD in Patent Document 2, sufficient holding force to support the image display device located in front of the eyes, away from the head, would require increased head clamping force, which also leads to wearability issues or discomfort. If the head clamping force is too strong, the force required to open the arm members of the head-mounted unit when the user attempts to put on the HMD increases, resulting in reduced usability.

[0006] In view of the above-mentioned problems, this disclosure aims to provide a device for attaching an attachment that can shorten the time required for position adjustment during attachment, eliminate the inability to attach the device or discomfort during attachment, and enable improved usability by allowing easy attachment and detachment with light force. [Means for solving the problem]

[0007] The mounting device of this disclosure comprises a mounting section on which an image display device can be mounted, and a pair of lateral sections extending in a bent direction from the left and right ends of the mounting section. Each of the lateral sections has an arm member that is movable along the longitudinal direction, and each of the arm members becomes movable in a direction different from the longitudinal direction when it extends and moves in the longitudinal direction. [Effects of the Invention]

[0008] According to this disclosure, it is possible to shorten the time required for position adjustment during attachment, eliminate the inability to attach the device or discomfort during attachment, and realize an attachment device that can be easily attached and detached with light force, thereby improving usability. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing the video display device of an HMD, which is a video display unit according to the first embodiment. [Figure 2] This is a rear view of the image display device showing the case where interpupillary distance adjustment is performed. [Figure 3]This is a perspective view showing the back of the video display device. [Figure 4] This embodiment shows a perspective view of an HMD (Head-Mounted Display) that can be worn on the user's head. [Figure 5] This is a perspective view showing a head-mounted unit, which is a wearable device according to this embodiment, equipped with an image display device in an HMD. [Figure 6] This is a top view showing the procedure for attaching the head-mounted unit to the head. [Figure 7] This is a perspective view showing one specific configuration of the arm member. [Figure 8] This is a top view showing a specific configuration of the arm member. [Figure 9] This is a top view showing an HMD according to a comparative example of the first embodiment. [Figure 10] This is a side view showing the HMD according to the first embodiment as seen from the right side. [Figure 11] This is a side view showing the HHD as viewed from the right side, illustrating the case where the HMD according to the first embodiment is used as an HHD. [Figure 12] This is a perspective view showing the HHD as viewed from the right side, illustrating the case where the HMD according to the first embodiment is used as an HHD. [Figure 13] This is a perspective view showing the right arm member in an HMD according to a modified example of the first embodiment. [Figure 14] This is a perspective view showing the HMD (Head-Mounted Display) being worn according to the second embodiment. [Figure 15] This is a perspective view showing a head-mounted unit equipped with an image display device in an HMD according to the second embodiment. [Figure 16] This is a side view of the head-mounted unit, seen from the right side, illustrating the procedure for attaching it to the head. [Modes for carrying out the invention]

[0010] -Basic configuration of the wearable device in this disclosure- In specifically disclosing various embodiments, the basic configuration of the wearable device in the present disclosure will be described.

[0011] The wearable device of the present disclosure includes a mounting portion on which a video display device can be mounted, and a pair of side portions extending in a direction bent from the left end and the right end of the mounting portion. Each side portion has an arm member movable along the longitudinal direction, and each arm member is movable in a direction different from the longitudinal direction when it extends and moves along the longitudinal direction of the side portion. Thus, the arm member can take a linear first form along the longitudinal direction and a second form movable in a direction different from the longitudinal direction as it moves along the longitudinal direction of the side portion. The wearable device of the present disclosure configured in this way is applied to, for example, a head-mounted wearable device. When attaching and detaching the wearable device of the present disclosure, by changing from the first form to the second form, the space between the arm members can be widened to easily pass the head through. At this time, the user does not need to hold the wearable device in an open state against the tightening force when wearing on the head, improving the operability.

[0012] As the second form of the arm member, when it extends and moves along the longitudinal direction of the side portion, there are, for example, two preferable modes in which it is movable in an outward direction with respect to the mounting portion. As the first mode, it is a mode in which the arm member is movable in a leftward or rightward opening direction when it extends and moves along the longitudinal direction of the side portion. This mode will be described in detail in the following first embodiment. As the second mode, it is a mode in which the arm member is movable in an upward opening direction when it extends and moves along the longitudinal direction of the side portion. This mode will be described in detail in the following second embodiment.

[0013] -Specific description of various embodiments- Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Note that the following embodiments do not limit the invention according to the claims. Although a plurality of features are described in the embodiments, not all of these plurality of features are essential, and the plurality of features may be arbitrarily combined. Further, in the drawings, the same or similar configurations are denoted by the same reference numerals, and redundant descriptions are omitted. The details of the dimensions and structures shown in each embodiment are not limited to those shown in the text and the drawings.

[0014] (First Embodiment) FIG. 1 is a perspective view showing a video display device 100 of an HMD which is a video display unit according to the first embodiment. The video display device 100 has lenses 10L and 10R, and the user observes an image by looking through the lenses 10L and 10R. The lenses 10L and 10R are prisms, lenses, etc. that enlarge and guide the image of a display device (not shown) such as an LCD or an OLED provided in the video display device 100.

[0015] The video display device 100 has hoods 11L and 11R around the lenses 10L and 10R. As shown in FIG. 2, the user can operate the hoods 11L and 11R to adjust the positions of the lenses 10L and 10R left and right according to the user's interpupillary distance.

[0016] FIG. 3 is a perspective view showing the back side of the video display device 100. The video display device 100 has imaging cameras 20L and 20R and alignment cameras 21L and 21R. The imaging cameras 20L and 20R are stereo cameras that acquire surrounding real images displayed to the user through the lenses 10L and 10R. The alignment cameras 21L and 21R are stereo cameras for acquiring the position and orientation of the video display device 100 by using feature points such as markers and edges of objects from the acquired images.

[0017] In this embodiment, imaging cameras 20L and 20R and alignment cameras 21L and 21R are provided separately. Although the alignment cameras 21L and 21R are monochrome, they aim for high-precision and highly fault-tolerant alignment by utilizing a wide field of view, high shutter speed, and long baseline length. It is also possible to acquire display images and alignment information using only the imaging cameras 20L and 20R. Furthermore, the alignment cameras 21L and 21R may be replaced with distance sensors using ultrasound, infrared, etc.

[0018] The video display device 100 exchanges positional information and images with an external PC (personal computer) or controller (not shown) via cable 90 to generate a display image, such as one in which computer graphics are superimposed on a real-world image. This display image is shown, and the user can observe the image through lenses 10L and 10R. The video display device 100 also has operation buttons 30A, 30B, and 30C, which allow the user to perform instructions and power operations.

[0019] Figure 4 is a perspective view showing a head-mounted display (HMD) in this embodiment, in which the video display device 100 can be attached to the user's head. The HMD allows for hands-free video viewing using a head-mounted unit 200, which is a device for wearing the device.

[0020] Figure 5 is a perspective view showing a head-mounted unit 200, which is a wearable device according to this embodiment, in which an image display device 100 is mounted in the HMD. The head-mounted unit 200 has a front frame 201 and a pair of lateral sections 203L and 203R. The front frame 201 is a mounting section on which the video display device 100 can be mounted and has a front pad 202 that contacts the user's forehead. The pair of lateral sections 203L and 203R extend toward the rear of the head in a direction bent from the left and right ends of the front frame 201.

[0021] The lateral sections 203L and 203R each have arm members 204L and 204R that are movable along their longitudinal direction, and operating levers 205L and 205R, which are operating members, provided at the front ends of the arm members 204L and 204R. The lateral sections 203L and 203R further have pressure arms 206L and 206R and rear pads 208L and 208R. The pressure arms 206L and 206R are pivotally supported by pressure springs 207L and 207R, which are pressure members, provided at the rear ends of the arm members 204L and 204R. The rear pads 208L and 208R are contact members for the back of the user's head and are pivotally supported on the pressure arms 206L and 206R. The rear pads 208L and 208R are configured to conform to the shape of the user's occipital region, contact the occipital region, and press inward against the front frame 201, thanks to the compression springs 207L and 207R.

[0022] Figure 6 is a top view showing the procedure for attaching the head-mounted unit 200 to the head. (a) shows the state where the arm members 204L and 204R are open and the front pad 202 is away from the user's forehead. (b) shows the state where the arm members 204L and 204R are open and the front pad 202 is in contact with the user's forehead. (c) shows the state where the arm members 204L and 204R are closed and the rear pads 208L and 208R are away from the user's back of the head. (d) shows the state where the arm members 204L and 204R are closed and the rear pads 208L and 208R are in contact with the user's back of the head.

[0023] First, as shown in Figure 6(a), when the operating levers 205L and 205R are moved backward, the arm members 204L and 204R slide backward, that is, along the longitudinal direction of the lateral sections 203L and 203R, and extend. When the tips of the arm members 204L and 204R move to the rear end of the lateral sections 203L and 203R, the tips of the arm members 204L and 204R become movable in a direction different from the longitudinal direction of the lateral sections 203L and 203R. Specifically, in this embodiment, the arm members 204L and 204R become movable outward relative to the front frame 201 (to the left for lateral section 203L, and to the right for lateral section 203R). The arm members 204L and 204R rotate outward from the head using their tips as the axis of rotation, and become open. In this way, by opening the arm members 204L and 204R, the head-mounted unit 200 can be brought closer to the user's head from the front.

[0024] Next, as shown in Figure 6(b), the head-mounted unit 200 is brought closer to the user's head, and the front pad 202 is brought into contact with the user's forehead.

[0025] Next, as shown in Figure 6(c), with the front pad 202 in contact with the forehead, the operating levers 205L and 205R are moved forward. At this time, the arm members 204L and 204R close towards the back of the head, and the front ends of the arm members 204L and 204R are contained within the lateral parts 203L and 203R, moving in the shortening direction. However, at this point, the rear pads 208L and 208R do not come into contact with the back of the head.

[0026] Then, as shown in Figure 6(d), by moving the operating levers 205L and 205R further forward, the rear pads 208L and 208R come into contact with the back of the head, and the pressure springs 207L and 207R cause the rear pads 208L and 208R to press against the back of the head. This fixes the head mounting unit 200 to the user's head.

[0027] In the head-mounted unit 200, the tightening pressure on the head can be adjusted as desired by appropriately adjusting the positions of the operating levers 205L and 205R according to the user's head size and preference.

[0028] To remove the head-mounted unit 200 from the user's head, simply reverse the above procedure (in the order of Figures 6(d), 6(c), 6(b), and 6(a)). By moving the operating levers 205L and 205R backward, the arm members 204L and 204R move backward, opening outwards relative to the user's head, and the head-mounted unit 200 can be removed from the user's head.

[0029] Figure 7 is a perspective view showing a specific configuration of the arm member 204R, and Figure 8 is a similar top view. In both Figures 7 and 8, (a) shows the arm member 204R in a closed state, and (b) shows the arm member 204R in an open state. The arm member 204L has a symmetrical and equivalent configuration to the arm member 204R.

[0030] The lateral section 203R has a middle section 209R, which is a front member integrated with the operating lever 205R, at the front end of the arm member 204R. When the operating lever 205R is moved forward, as shown in Figures 7(a) and 8(a), the front end of the arm member 204R is contained within the lateral section 203R, and the arm member 204R is guided by the lateral section 203R. The arm member 204R is pivotally supported by the middle section 209R. At this time, the arm member 204R is closed and elastically biased outward relative to the front frame 201 by a spring 210R, which is a biasing member.

[0031] When the operating lever 205R is moved backward, the middle piece 209R moves to the rear end of the lateral section 203R, and as shown in Figures 7(b) and 8(b), the front end of the arm member 204R comes out of the guide shape of the lateral section 203R and is exposed from inside the lateral section 203R to the outside. At this time, the outward biasing force of the spring 210R on the front frame 201 is released, and the arm member 204R opens outward relative to the front frame 201 due to the action of the spring 210R.

[0032] Then, by moving the operating lever 205R forward, the middle section 209R and the arm member 204R are shortened forward, and the front end of the arm member 204R is retracted into the lateral section 203R. At this time, the arm member 204R returns to the state where it is guided by the lateral section 203R, as shown in Figures 7(a) and 8(a).

[0033] In this embodiment, springs 210L and 210R are placed at the tips of the arm members 204L and 204R to apply a biasing force to them. However, the springs 210L and 210R may be omitted to reduce the number of parts and simplify the HMD configuration. In this case, the closing operation of the arm members 204L and 204R is performed automatically by moving the operating levers 205L and 205R forward, as described above. The opening operation of the arm members 204L and 204R is performed by moving the operating levers 205L and 205R backward, which makes the arm members 204L and 204R ready to be opened. At this time, the user can open the arm members 204L and 204R with light force without resisting the biasing force and remove the mounting unit 200 from the head, so there is no significant decrease in usability.

[0034] Figure 9 is a top view showing an HMD according to a comparative example of this embodiment, where (a) shows the arm members in the closed state and (b) shows the arm members in the open state. In the comparative example HMD, the head-mounted unit 500 has a front frame 501 on which an image display unit is mounted and a pair of lateral sections 502L and 502R. The lateral sections 502L and 502R have arm members 503L and 503R that are movable along the longitudinal direction. The lateral sections 502L and 502R are rotatable at the left and right ends of the front frame 501 while receiving an elastic bias toward the front frame 501 toward the front frame 501.

[0035] In the comparative example HMD, when attaching or detaching the head-mounted unit 500, the user is required to hold the arm members 503L and 503R in an open position against the biasing force directed inward by the front frame 501. In this case, the tightening force at the back of the head is exerted by the torque at the front arm rotation center, so the direction of the tightening force is biased towards the left-right direction of the head. Therefore, in order to exert a tightening force between the forehead and the arm, it is necessary to increase the torque at the arm rotation center, which increases the force that opens the arm members 503L and 503R when the user attempts to attach the head-mounted unit 500 from the front, leading to a decrease in usability.

[0036] In contrast, in the HMD of this embodiment, when attaching or detaching the head-mounted unit 200, the arm members 204L and 204R are opened outward with respect to the longitudinal direction of the lateral parts 203L and 203R. Therefore, unlike conventional HMDs, the user does not need to hold the arm members in an open state against the tightening force when the head is mounted, improving the operability of the HMD.

[0037] Furthermore, conventional HMDs, which have a ring-shaped head-mounted unit that wraps around the user's head, are equipped with, for example, a dial for tightening the head-mounted unit to the head and, for example, a button for releasing the tightened state. Therefore, attaching or detaching the head-mounted unit requires operating multiple mechanisms such as the dial and button.

[0038] In contrast, in the HMD of this embodiment, a series of operations for moving and releasing the arm members 204L and 204R for attachment and detachment can be performed with a single operating mechanism using operating levers 205L and 205R. That is, in the HMD of this embodiment, the head-mounted unit 200 is attached and detached by grasping the side parts 203L and 203R and operating the operating levers 205L and 205R with the thumb or the like without releasing the hand. In the HMD of this embodiment, there is no need for a mechanism to lock the position of the operating levers 205L and 205R relative to the arm members 204L and 204R, and attachment, detachment, and pressure adjustment can be performed only by moving the operating levers 205L and 205R back and forth. As a result, the time required for attaching, detaching, and positioning the head-mounted unit 200 can be shortened, and excellent operability is achieved.

[0039] Using Figure 8(a) again, we will explain how the position of the arm member 204R is maintained when the HMD is attached to the head. The arm member 204L can also be positioned in the same way as the arm member 204R.

[0040] In the head-mounted unit 200, a support member 211R, made of a material such as rubber with a higher coefficient of friction than the side portion 203R, is positioned at the rear end of the side portion 203R and on the outer surface facing the user's head. When the rear pad 208R contacts and pressurizes the back of the user's head, the arm member 204R makes contact due to the reaction force. Here, the pivot point of the arm member 204R with the middle section 209R is the fulcrum, and the point where the arm member 204R receives force from the rear pad 208R and the pressure spring 207R via the pressure arm 206R at the rear end of the arm member 204R is the point of application. The point of contact between the arm member 204R and the support member 211R becomes the point of action, and the force applied to the side of the head at the point of application acts as a greater contact pressure on the support member 211R at the point of application due to the lever principle. At this time, the frictional force generated between the arm member 204R and the support member 211R functions as a braking force that hinders the forward and backward movement of the arm member 204R. Therefore, without the need to provide a separate stopper mechanism for the forward and backward movement of the arm member 204R, the rear pad 208R can counteract the force that would cause the arm member 204R to move backward due to the reaction force when it contacts the head, and maintain the position of the rear pad 208R.

[0041] When the user operates the control lever 205R to move the arm member 204R forward or backward, they apply force along the direction of movement of the arm member 204R. Therefore, the contact pressure and braking force on the support member 211R do not increase, allowing for smooth forward and backward movement of the arm member 204R. Furthermore, unlike cases where a stopper mechanism such as a latch claw mechanism is provided, stepless position holding and movement operations are possible without operating a release mechanism. This results in further improvements in usability.

[0042] Figure 10 is a side view showing the HMD according to this embodiment as seen from the right side. In the illustrated example, a stopper 212R, which is a locking member that limits the range of movement of the operating lever 205R, is fixed to the side portion 203R, and is locked so that the operating lever 205R cannot move forward beyond the fixed position of the stopper 212R. The stopper 212R is detachable from the side portion 203R and can be moved and fixed to a predetermined position on the side portion 203R when attached.

[0043] When using the HMD according to this embodiment, the user can first determine the position of the operating lever 205R to achieve their preferred tightening pressure, and then fix the stopper 212R in that position. This allows the user to easily reproduce the same tightening pressure in subsequent operations by moving the operating lever 205R until it abuts against the stopper 212R, thereby improving usability.

[0044] The above describes the configuration of the right side of the HMD, but the left side has a similar configuration, and the installation positions of the stoppers 212L and 212R can be adjusted independently to achieve the desired contact pressure. Alternatively, the installation positions of the left and right stoppers 212L and 212R can be linked via the front frame 201, for example, using wires. In this case, by adjusting the installation position of one stopper 212L, the other stopper 212R will be simultaneously adjusted to a position symmetrical to that of stopper 212L. In this way, the adjustment can be completed at once by adjusting the installation position of the stoppers on one side, thus eliminating the need for repeated adjustments and shortening the adjustment time.

[0045] Figure 11 is a side view showing the HMD according to this embodiment as a handheld display (HHD), viewed from the right side. Figure 12 is a perspective view showing the HMD according to this embodiment as an HHD.

[0046] By operating the arm stopper levers 213L and 213R (Figure 10) provided on the front frame 201, the lateral sections 203L and 203R are rotated forward and downward together with the arm members 204L and 204R, as shown in Figures 11 and 12. This allows the device to transform from an HMD to an HHD.

[0047] In the HHD configuration shown in Figures 11 and 12, the user can utilize it as an HHD by grasping the lateral parts 203L, 203R or the arm members 204L, 204R. By adopting the HHD configuration, for example, when performing simple observations that do not require attachment to the head, or when used by users who are uncomfortable with wearing devices on their heads, it becomes possible to easily observe images without the hassle of attaching the device to the head.

[0048] Unlike the ring-shaped head-mounting unit that wraps around the user's head, the lateral sections 203L, 203R and arm members 204L, 204R possess sufficient rigidity to withstand the reaction force of the tightening force received from the rear pads 208L, 208R when mounted on the head. Therefore, the lateral sections 203L, 203R and arm members 204L, 204R have sufficient strength to function as hand-held handles for the HHD.

[0049] In the HHD configurations shown in Figures 11 and 12, the arm members 204L and 204R are shown in their maximum forward position, but the configuration is not limited to this. For example, by using the aforementioned stoppers 212L and 212R, it is possible to fix the position of the arm members 204L and 204R at a desired length.

[0050] As described above, according to this embodiment, the time required to adjust the position of the lateral parts 203L and 203R can be reduced, eliminating the inability to wear the HMD or discomfort during wear, and enabling an HMD with improved usability that can be easily attached and detached with light force.

[0051] (modified version) The following describes some variations of the HMD according to this embodiment. Figure 13 is a perspective view showing the right arm member 254R in a modified HMD, where (a) shows the arm member 254R in the closed state and (b) shows the arm member 254R in the open state. The left arm member 254L has a symmetrical and equivalent configuration to the arm member 254R.

[0052] In the modified HMD, a cam groove 260R is formed at the rear end of the lateral portion 253R, which bends outward relative to the front frame at its rearmost position. The arm member 254R does not have a spring 210R at its front end as in this embodiment, and is shaped to bend inward relative to the front frame, and a guide pin 261R is provided at its front end, which movably engages with the cam groove 260R. The middle section 259R is integrated with an operating lever (not shown).

[0053] In this HMD, as shown in Figure 13(a), when the front end of the arm member 254R is contained within the lateral portion 253R, the guide pin 261R engages with the portion of the lateral portion 253R along its longitudinal direction in front of the cam groove 260R. When the operating lever is moved forward in this state, the guide pin 261R is guided by the cam groove 260R, and the arm member 254R moves along the longitudinal direction of the lateral portion 253R in a closed state.

[0054] In this HMD, the operating lever is moved backward as shown in Figure 13(b). At this time, the guide pin 261R is guided by the outwardly bent portion at the rearmost end of the cam groove 260R, and consequently the arm member 254R is opened outward relative to the front frame.

[0055] In the modified HMD, when attaching or detaching the head-mounted unit, the arm members 254L and 254R are opened outward relative to the longitudinal direction of the lateral parts 253L and 253R. Therefore, unlike conventional HMDs, the user does not need to hold the arm members in an open position against the tightening force when the head is attached, improving the operability of the HMD.

[0056] Furthermore, in the modified HMD, a series of operations for moving and releasing the arm members 254L and 254R for attachment and detachment can be performed with a single operating mechanism using an operating lever. That is, in the HMD of this embodiment, the head-mounted unit is attached and detached by grasping the side parts 253L and 253R and operating the operating lever with the thumb or the like without releasing the hand. In the HMD of this embodiment, there is no need for a mechanism to lock the position of the operating lever relative to the arm members 204L and 204R, and attachment / detachment and pressure / depressurization operations can be performed only by moving the operating lever back and forth. This reduces the time required for attaching / detaching the head-mounted unit and aligning it, resulting in excellent operability.

[0057] As explained above, the modified version reduces the time required to adjust the position of the lateral sections 253L and 253R, eliminating issues such as inability to wear the device or discomfort, and enabling an HMD with improved usability that can be easily attached and detached with minimal force.

[0058] (Second embodiment) The video display device 100 in this embodiment has the same configuration as the video display device 100 in the first embodiment.

[0059] Figure 14 is a perspective view showing the HMD according to this embodiment being worn. The HMD allows for hands-free video viewing using the head-mounted unit 200.

[0060] Figure 15 is a perspective view showing a head-mounted unit 300 on which an image display device 100 is mounted in the HMD according to this embodiment. The head-mounted unit 300 has a front frame 301 and a pair of lateral sections 303L and 303R. The front frame 301 is the mounting section for the image display device 100 and has a front pad 302 that contacts the forehead. The pair of lateral sections 303L and 303R extend toward the rear of the head in a direction bent from the left and right ends of the front frame 301.

[0061] The lateral sections 303L and 303R have arm members 304L and 304R that are movable along the longitudinal direction, and operating levers 305L and 305R provided at the front ends of the arm members 304L and 304R. The lateral sections 303L and 303R further have pressure arms 306L and 306R and rear pads 308L and 308R. The pressure arms 306L and 306R are pivotally supported by pressure springs 307L and 307R, which are pressure members, at the rear ends of the arm members 304L and 304R. The rear pads 308L and 308R are contact members for the back of the user's head and are pivotally supported on the pressure arms 206L and 206R. The rear pads 308L and 308R are configured to conform to the shape of the user's occipital region and contact the occipital region, pressing inward against the front frame 301, by means of compression springs 307L and 307R. The configuration of the head-mounted unit 300 described above is equivalent to that of the head-mounted unit 200 in the first embodiment.

[0062] Figure 16 is a side view of the head-mounted unit 300, viewed from the right side, illustrating the procedure for mounting it on the head. (a) shows the rear pad 308 away from the user's back of the head, (b) shows the rear pad 308 close to the user's forehead, and (c) shows the rear pad 308 in contact with the user's forehead. The view of the head-mounted unit 300 from the left side is symmetrical to Figure 16.

[0063] First, as shown in Figure 16(a), when the operating levers 305L and 305R are moved backward, the arm members 304L and 304R slide backward, that is, along the longitudinal direction of the lateral sections 303L and 303R, and extend. When the tips of the arm members 304L and 304R move to the rear end of the lateral sections 303L and 303R, the tips of the arm members 304L and 304R become movable in a direction different from the longitudinal direction of the lateral sections 303L and 303R. Specifically, in this embodiment, the members 304L and 304R become movable upward relative to the front frame 301. The arm members 304L and 304R rotate upward toward the head with their tips as the axis of rotation, and become open. In this way, when the arm members 304L and 304R are open, the rear pads 308L and 308R are positioned above the back of the user's head. Then, the head-mounted unit 300 can be brought closer to the user's head from the front, allowing the front pad 302 to make contact with the forehead.

[0064] Next, as shown in Figure 16(b), with the front pad 302 in contact with the forehead, the operating levers 305L and 305R are moved forward. At this time, the arm members 304L and 304R rotate downward so that they are aligned in a straight line along their longitudinal direction with the lateral parts 303L and 303R. However, at this point, the rear pads 308L and 308R do not yet come into contact with the back of the head.

[0065] Then, as shown in Figure 16(c), by moving the operating levers 305L and 305R further forward, the rear pads 308L and 308R come into contact with the back of the head, and the pressure springs 307L and 307R cause the rear pads 308L and 308R to press against the back of the head. This fixes the head-mounting unit 300 to the user's head.

[0066] In the head-mounted unit 300, the tightening pressure on the head can be adjusted as desired by appropriately adjusting the positions of the operating levers 305L and 305R according to the user's head size and preference.

[0067] To remove the head-mounted unit 300 from the user's head, simply reverse the above procedure (in the order of Figures 16(c), 16(b), and 16(a)). By moving the operating levers 305L and 305R backward, the arm members 204L and 204R move backward, opening them upward relative to the user's head, and the head-mounted unit 300 can be removed from the user's head.

[0068] The configuration in this embodiment that allows the arm members 304L and 304R to move vertically is the same as the configuration in the first embodiment in which the arm members 204L and 204R and the intermediate frames 209L and 209R are held rotatably. That is, by holding the arm members 304L and 304R so that they can rotate vertically on the intermediate frames (not shown) which are held integrally with the operating levers 305L and 305R, a configuration that allows the arm members 304L and 304R to move vertically can be realized.

[0069] Other aspects, such as the fact that the head-mounted unit 300 is provided with a support member that is a mechanism for holding the position of the arm members 304L and 304R, and that the HMD of this embodiment can be used as an HHD, are the same as those of the head-mounted unit 200 of the first embodiment.

[0070] In this embodiment, compared to the first embodiment in which the arm members extend to the left and right, the space required when attaching and detaching the head-mounted unit 300 can be made more compact.

[0071] As described above, according to this embodiment, the time required to adjust the position of the lateral parts 303L and 303R can be reduced, eliminating the inability to wear the device and causing discomfort, and realizing an HMD that can be easily attached and detached with light force, thereby improving usability.

[0072] While preferred embodiments of the present disclosure have been described above, the present disclosure is not limited to these embodiments, and various modifications and changes are possible within the scope of its essence.

[0073] The disclosure of various embodiments includes the following configurations. (Composition 1) A mounting section capable of integrating a video display device, A pair of lateral portions extending in a bent direction from the left and right ends of the mounting portion, Equipped with, Each of the aforementioned lateral portions has an arm member that is movable along the longitudinal direction, Each of the aforementioned arm members, when extended in the longitudinal direction, becomes movable in a direction different from the longitudinal direction. A device for attachment. (Configuration 2) Each of the aforementioned arm members, when extended in the longitudinal direction, becomes movable outward relative to the mounting portion. The attachment device described in Configuration 1. (Composition 3) Each of the aforementioned arm members is movable in the leftward or rightward opening direction when it extends in the longitudinal direction. The attachment device described in Configuration 2. (Composition 4) Each of the aforementioned arm members is movable in the upward opening direction when it extends in the longitudinal direction. The attachment device described in Configuration 2. (Composition 5) Each of the aforementioned lateral portions includes a contact member provided at the rear end of the arm member, and a pressurizing member that presses the contact member inward relative to the mounting portion, Having, A device to be attached, as described in one of components 1 to 4. (Composition 6) Each of the aforementioned lateral portions has a biasing member at the rear end of the arm member that elastically biases the arm member outward relative to the mounting portion. Each of the aforementioned arm members, when extended in the longitudinal direction, becomes movable outward due to the biasing force of the biasing member. A device to be attached, as described in one of components 1 to 5. (Composition 7) Each of the aforementioned arm members is, When the front end moves to the rear end of the lateral portion, it becomes movable in a direction different from the longitudinal direction. When the front end shortens away from the rear end of the side portion, the front end fits into the side portion and is guided in the longitudinal direction. A device to be attached, as described in one of components 1 to 6. (Composition 8) Each of the aforementioned lateral portions has an operating member provided at the front end of the arm member, As the operating member moves in the longitudinal direction, the arm member moves in the longitudinal direction. A device to be attached, as described in one of components 1 through 7. (Composition 9) Each of the aforementioned arm members is, The arm member has a front member at its front end, and is pivotally supported by the front member. The mounting device described in component 8. (Composition 10) The aforementioned front member is integrated with the aforementioned operating member. The attachment device described in configuration 9. (Composition 11) The locking member is detachably attached to a predetermined fixed position on the side portion and restricts the operating member from moving forward beyond the predetermined fixed position on the side portion. A device to be attached, as described in any one of components 8 to 10. (Composition 12) One of the locking members and the other locking member are designed to move in conjunction with each other. The attachment device described in configuration 11. (Composition 13) Each of the aforementioned lateral portions has a support member provided on its outer surface at the rear end of the lateral portion. Each of the arm members is movable in a direction different from the longitudinal direction while the front member is in contact with the support member. The mounting device described in configuration 9 or 10. (Composition 14) The support member is made of a material with a higher coefficient of friction than the lateral portion. The attachment device described in configuration 13. (Composition 15) Each of the aforementioned lateral portions has a cam groove at its rear end that bends outward relative to the mounting portion at its rearmost position. Each of the aforementioned arm members has a guide pin at its front end that movably engages with the cam groove. A device to be attached, as described in one of components 1 through 14. (Composition 16) The aforementioned lateral portion is movable forward and downward together with the arm member. A device to be attached, as described in one of components 1 through 15. (Composition 17) Video display device and A fitting device described in any one of configurations 1 to 16, Equipped with, Video display unit. [Explanation of Symbols]

[0074] 100: Video display device 10: Lens 11: Lens hood 20: Imaging camera 21: Alignment Camera 30: Operation buttons 90: Cable 200,300: Head-mounted unit 201,301: Front frame 202,302: Front pad 203,253,303: Lateral part 204,254,304: Arm members 205,305: Operating lever 206,306: Pressurized arm 207,307: Compression spring 208,308: Rear pads 209,259,309: Middle frame 210: Spring 211: Support member 212,312: Stopper 213,313: Arm stopper lever

Claims

1. A mounting section capable of integrating a video display device, A pair of lateral portions extending in a bent direction from the left and right ends of the mounting portion, Equipped with, Each of the aforementioned lateral portions has an arm member that is movable along the longitudinal direction, Each of the aforementioned arm members, when extended in the longitudinal direction, becomes movable in a direction different from the longitudinal direction. A device for attachment.

2. Each of the aforementioned arm members, when extended in the longitudinal direction, becomes movable outward relative to the mounting portion. The attachment device according to claim 1.

3. Each of the aforementioned arm members is movable in the leftward or rightward opening direction when it extends in the longitudinal direction. The attachment device according to claim 2.

4. Each of the aforementioned arm members is movable in the upward opening direction when it extends in the longitudinal direction. The attachment device according to claim 2.

5. Each of the aforementioned lateral portions includes a contact member provided at the rear end of the arm member, and a pressurizing member that presses the contact member inward relative to the mounting portion, Having, The attachment device according to claim 1.

6. Each of the aforementioned lateral portions has a biasing member at the rear end of the arm member that elastically biases the arm member outward relative to the mounting portion. Each of the aforementioned arm members, when extended in the longitudinal direction, becomes movable outward due to the biasing force of the biasing member. The attachment device according to claim 1.

7. Each of the aforementioned arm members is, When the front end moves to the rear end of the lateral portion, it becomes movable in a direction different from the longitudinal direction. When the front end shortens away from the rear end of the side portion, the front end fits into the side portion and is guided in the longitudinal direction. The attachment device according to claim 1.

8. Each of the aforementioned lateral portions has an operating member provided at the front end of the arm member, As the operating member moves in the longitudinal direction, the arm member moves in the longitudinal direction. The attachment device according to claim 1.

9. Each of the aforementioned arm members is, The arm member has a front member at its front end, and is pivotally supported by the front member. The mounting device according to claim 8.

10. The aforementioned front member is integrated with the aforementioned operating member. The mounting device according to claim 9.

11. The locking member is detachably attached to a predetermined fixed position on the side portion and restricts the operating member from moving forward beyond the predetermined fixed position on the side portion. The mounting device according to claim 8.

12. One of the locking members and the other locking member are designed to move in conjunction with each other. The attachment device according to claim 11.

13. Each of the aforementioned lateral portions has a support member provided on its outer surface at the rear end of the lateral portion. Each of the arm members is movable in a direction different from the longitudinal direction while the front member is in contact with the support member. The mounting device according to claim 9.

14. The support member is made of a material with a higher coefficient of friction than the lateral portion. The mounting device according to claim 13.

15. Each of the aforementioned lateral portions has a cam groove at its rear end that bends outward relative to the mounting portion at its rearmost position. Each of the aforementioned arm members has a guide pin at its front end that movably engages with the cam groove. The attachment device according to claim 1.

16. The aforementioned lateral portion is movable forward and downward together with the arm member. The attachment device according to claim 1.

17. Video display device and A mounting device according to any one of claims 1 to 16, Equipped with, Video display unit.

Images