JP6281454B2 - Head mounted display and image display unit - Google Patents

Description

  The present invention relates to a head mounted display and an image display unit for mounting an image display device on a head.

  2. Description of the Related Art A head-mounted display (hereinafter referred to as “HMD”) that wears a wearing tool with an image display device on a user's head and presents an image to the user's eyes is known. The wearing tool provided in the HMD described in Patent Document 1 has a rod shape and exhibits a curved shape that protrudes rearward in the direction when the head is worn. Both ends of the wearing tool are connected to a pair of ear pads to be hung on the user's ear. The image display device is disposed on the front side of the wearing tool. The image display device is connected to the wearing tool via the arm unit. One end of the arm portion is attached to one end portion of the wearing tool on the rear side of the ear pad. The arm portion extends in a convex shape toward the side toward the other end where the image display device is provided. At the time of wearing, the arm portion has a gap with the head due to the curved shape. For this reason, even if a spectacles user wears HMD, an arm part cannot contact a spectacles frame easily.

JP 2005-189743 A

  However, in order to allow the arm portion to reach from the rear side to the front side, in Patent Document 1, it is necessary to form the arm portion relatively long. A large torque is applied to the connecting portion between the arm portion and the wearing tool as the weight increases as the arm portion extends. When the holding torque for holding the arm portion by the connecting portion is increased, the force required to move the arm portion at the time of mounting increases. In Patent Document 1, there is a possibility that the position of the image display device is difficult to finely adjust. Further, the image display device and the arm portion vibrate with the connection portion as a fulcrum by a slight movement of the head when worn. The shaking width of the image display device increases according to the length of the arm portion. Therefore, in Patent Document 1, there is a possibility that an image displayed on the image display device is likely to be blurred.

  An object of the present invention is to provide a head-mounted display and an image display unit that can prevent an arm portion from coming into contact with a spectacle frame when wearing a spectacles user and can suppress shaking of an image display device.

According to the first aspect of the present invention, the mounting tool is formed in an open ring shape or a closed ring shape and has a portion curved in a convex shape in the first direction and the second direction orthogonal to the first direction, and generates image light. And an image display device that includes an image display unit that displays an image based on the image light generated by the image light generation unit, and extends in a rod shape while curving in a convex shape, with one end portion from the other end portion Is an arm portion arranged on one side in a third direction orthogonal to the first direction and the second direction, and is connected to the mounting tool at the one end portion and the image display device at the other end portion. An arm portion coupled to the first position in the first direction relative to the central position of the mounting tool in the first direction and the second position relative to the central position of the mounting tool in the second direction. Identify one direction or the other A first connection mechanism that connects to the mounting tool and connects to the one end of the arm portion and connects the mounting tool and the arm portion, and is surrounded by a curved shape of the mounting tool In the fourth direction from the inside to the outside of the region through the specific position, the one end portion is disposed on the outer side of the first coupling mechanism, and protrudes to the outside of the region from the wearing tool. A first coupling mechanism provided; and disposed on the outer side of the mounting tool in the fourth direction, and connected to the other end of the arm and the image display device, and the arm and the image display There is provided a head mounted display comprising a second connecting mechanism for connecting the device.

  The head-mounted display (HMD) according to the first aspect is mounted on the user's head, for example, with the second direction facing the left-right direction and one side of the first direction being the front side. The first connection mechanism that connects the mounting tool and the arm portion protrudes from the specific position of the mounting tool to the outside of the mounting tool. The specific position is a position shifted from the center in the second direction of the wearing tool, for example, the left or right side from the center in the left-right direction at the time of wearing, and the position in front of the center in the first direction of the wearing tool, for example, the front-rear direction It is. By setting this position as the specific position, the HMD can be configured such that the other end portion of the arm portion is disposed on the other side in the third direction, for example, on the lower side in the vertical direction. Therefore, the HMD has a length that can reach the front of the user's face from a specific position, even if the arm does not have a length that reaches the front of the face from the back of the user's ear, for example, The image display device can be placed in front of the user's eyes. The second coupling mechanism that couples the image display device and the arm unit is arranged outside the region than the wearing tool. Therefore, when the HMD is mounted on the head of the spectacle user, the arm portion is disposed on the outer side of the region with respect to the spectacle frame, so that it is difficult to contact the spectacle frame.

  In the first aspect, the housing of the image display device may be arranged extending in the second direction. The image display device is provided in the housing, and includes an image light forming portion that emits image light along the second direction, and a tip portion that is one of the end portions in the second direction of the housing. And a deflection unit that deflects the image light emitted from the image light forming unit toward the other side in the first direction. The second coupling mechanism may be connected to a proximal end portion that is an end portion on the opposite side of the distal end portion of the housing of the image display device. In order not to disturb the user's field of view, it is desirable to arrange the arm part at a position away from the user's eyes in the second direction. The other end portion of the arm portion and the base end portion of the image display device are connected by a second connecting mechanism. That is, the base end portion of the image display device is disposed at a position away from the user's eyes in the second direction. Therefore, the image display device can be disposed with the tip portion close to the eyes of the user if the longitudinal direction of the housing is disposed along the second direction. Therefore, HMD can arrange | position a deflection | deviation part in front of a user's eyes, without forming a 2nd connection mechanism long or curving an arm part so that an image display apparatus may reach in front of eyes.

  In the first aspect, the second connection mechanism may be connected to the base end portion of the image display device on the other side in the first direction with respect to the deflection portion. When the HMD is worn by a spectacle user, since the spectacle lens is disposed in front of the eye, the image display device needs to be disposed on one side in the first direction from the spectacle lens. Since the second connection mechanism is connected to the base end portion on the other side in the first direction of the image display device, the HMD can arrange the image display device on the one side in the first direction with respect to the second connection mechanism. Therefore, in the HMD, since the image display device is disposed at a position avoiding the spectacle lens, it is not necessary to make the arm portion long, so that it is possible to suppress image blurring due to shaking of the image display device and the arm portion with respect to the wearing tool. .

  1st aspect WHEREIN: The said arm part may be arrange | positioned on the outer side of the said area | region in said 2nd direction rather than the said mounting tool and the said image display apparatus. When the HMD is mounted on the head of a spectacle user, the arm portion is unlikely to contact the spectacle frame. Further, the arm portion is unlikely to obstruct the user's visual field.

  In the first aspect, the fourth direction may be a direction along the second direction. The first coupling mechanism extends outward from the wearing device along the second direction. Therefore, the arm part connected to the first coupling mechanism is disposed laterally from the front of the eye at the time of wearing, and hardly disturbs the visual field.

  In the first aspect, the first coupling mechanism may be connected to the one end portion of the arm portion on the outer side of the region in the second direction than the end portion in the second direction of the wearing tool. . The arm portion is surely arranged on the outer side of the region from the end portion in the second direction of the wearing tool. Therefore, since the arm portion is arranged on the side of the eye before wearing, it is difficult to obstruct the visual field.

  In the first aspect, in the arm portion, a portion between the one end portion and the other end portion may be curved in a convex shape toward the outside of the region. The arm portion can be curved so as to be positioned outside the region in the second direction with respect to the spectacle frame when worn on the spectacle user's head. Therefore, the arm portion is difficult to contact with the spectacle frame.

  1st aspect WHEREIN: A said 1st connection mechanism may connect the said mounting tool and the said arm part in the state in which the said arm part had a 2 or more axis | shaft freedom degree with respect to the said mounting tool. The second connection mechanism may connect the arm unit and the image display device in a state where the image display device has a degree of freedom of rotation of two or more axes with respect to the arm unit. The HMD can easily adjust the arrangement position of the image display device while maintaining the positional relationship between the wearing tool, the arm unit, and the image display device.

  1st aspect WHEREIN: The said one end part of the said arm part may be provided with the connection part which protrudes from the said one end part and connects with said 1st connection mechanism. When the first connecting mechanism connects the mounting tool and the arm part at the center of the movable range, the connecting part may protrude from the one end part along the second direction, and the arm part The other end may extend with respect to the one end in a direction positioned on the other side of the third direction and on the outer side of the region in the second direction. When worn on the head of the spectacle user, the other end side disposed closer to the spectacle frame than the one end is positioned outside the region in the second direction than the one end. Therefore, the arm portion is difficult to contact with the spectacle frame.

  1st aspect WHEREIN: The said mounting tool is a 1st part extended between the 1st position and the 2nd position located in the one side of the said 1st direction rather than the said 1st position, With respect to the said 1st position A third position located on one side of the second direction, and a fourth position located on one side of the second direction with respect to the second position and located on one side of the first direction with respect to the third position. A second portion extending between the first position and the third position and between the second position and the fourth position, the first portion and You may provide the 3rd part which follows each of a 2nd part. At least a portion may be curved in a convex shape toward the outside of the region. The first portion includes a fourth portion extending between the first position and a fifth position located on the one side in the first direction and the other side in the second direction with respect to the first position; You may have a 5th part extended between said 5th position and said 2nd position located in said 1st direction one side and said 2nd direction one side rather than said 5th position. The second part includes a sixth part extending between the third position and a sixth position located on one side in the first direction and one side in the second direction with respect to the third position, and the sixth part. And a seventh portion extending between the position and the fourth position located on the one side in the first direction and the other side in the second direction with respect to the sixth position. When the HMD is mounted, each portion of the mounting tool fits the shape of the user's head and securely holds the head, so that displacement of the mounting position is suppressed.

According to the second aspect of the present invention, there is provided an image display unit that can be attached to a head and can be attached to a wearing tool that is curved along the shape of the head, the image light generating unit that generates image light, and the image An image display device that includes an image display unit that displays an image based on image light generated by the light generation unit, an image display device that displays an image, and a first direction corresponding to the front-rear direction when the head is mounted on the wearing tool And a third direction orthogonal to the first direction, orthogonal to the second direction corresponding to the left-right direction when the mounting tool is worn on the head, and corresponding to the vertical direction when the mounting tool is worn on the head. And extending in a rod shape while curving in a convex shape, and having one end portion disposed on one side of the third direction with respect to the other end portion, and connected to the wearing tool at the one end portion, and An arm connected to the image display device at the other end; In a position on the front side when wearing the head from the center position of the wearing tool in the first direction, and a position on the left side or right side when wearing the head from the center position of the wearing tool in the second direction. A first connecting mechanism that is attached to the mounting tool at a specific position and is connected to the one end of the arm unit and connects the mounting tool and the arm unit, and is surrounded by a curved shape of the mounting tool. In the fourth direction from the inside of the region that passes through the specific position to the outside of the region, the one end portion is disposed on the outer side of the first coupling mechanism, and the outer side of the region is more than the mounting tool. A first coupling mechanism that protrudes, is disposed on the outside of the mounting tool in the fourth direction, and is connected to the other end of the arm and the image display device, and the arm and Image display The image display unit, characterized in that a second connecting mechanism for connecting the location is provided.

  The HMD in which the image display unit according to the second aspect is attached to a specific position of the wearing tool is configured to extend the arm portion downward in the third direction, that is, the vertical direction. For example, even if the arm portion is not long enough to reach the front face of the face from the rear side of the user's ear, the HMD can display an image sufficiently if the arm portion is long enough to reach the front face of the user from a specific position. The device can be placed in front of the eye. When this HMD is mounted on the head of a spectacle user, the arm portion is disposed on the outer side of the region with respect to the spectacle frame, so that it is difficult to contact the spectacle frame. Further, the other end of the arm portion is positioned on the lower side with respect to one end of the arm portion connected to the first coupling mechanism. That is, the direction of the force received by the first coupling mechanism by the gravity received by the image display device and the arm unit is close to the direction of gravity. Therefore, the torque applied to the first coupling mechanism by the gravity received by the image display device and the arm unit is smaller than, for example, when the other end of the arm unit is disposed forward with respect to the one end. Accordingly, the HMD can reduce the force required to move the arm portion when the HMD is mounted, and therefore can facilitate fine adjustment of the position of the image display device.

It is the perspective view which looked at HMD1 from the front lower part. It is a top view of HMD1. It is a left view of HMD1. It is the perspective view which looked at the image display part 3 from the back upper right. It is the perspective view which looked at the image display unit 2 from the front upper direction. It is the perspective view which looked at the image display unit 2 from the front left lower part. It is a perspective view of HMD101.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The drawings to be referred to are used for explaining technical features that can be adopted by the present invention. The configuration of the apparatus described in the drawings is not intended to be limited to that, but merely an illustrative example.

  As shown in FIGS. 1 to 3, a head mounted display (hereinafter referred to as “HMD”) 1 is an optically transmissive HMD that can be mounted on a user's head. The light of the scenery in front of the user's eyes is guided directly to the user's eyes by passing through the half mirror 35. The projection format of HMD1 is a virtual image projection type. The half mirror 35 reflects light of an image displayed on a liquid crystal panel (not shown) toward one eye of the user. The HMD 1 can allow the user to recognize an image superimposed on the scene in front of him. The HMD 1 includes an image display unit 3, an arm unit 4, a mounting tool 5, and coupling mechanisms 8 and 9. The image display unit 3, the arm unit 4, and the coupling mechanisms 8 and 9 constitute an image display unit 2 that can be attached to and detached from the mounting tool 5. Hereinafter, in order to help understand the description of the figure, the upper side, lower side, left side, right side, front side, and rear side of the HMD 1 are defined. The upper side, the lower side, the left side, and the right side of the HMD 1 correspond to, for example, the upper side, the lower side, the right side, and the left side of FIG. The front side and the rear side of the HMD 1 correspond to, for example, the lower side and the upper side of FIG. The upper side, the lower side, the left side, the right side, the front side, and the rear side of the HMD 1 correspond to the user reference directions when the wearing tool 5 is worn by the user.

  The mounting tool 5 is made of a flexible material such as resin or metal (for example, stainless steel). The mounting tool 5 is an elongated plate-like member that is formed in a substantially annular shape and that opens on the rear side. The shape of the wearing tool 5 of this embodiment is a symmetrical shape and a vertically symmetrical shape. Hereinafter, for convenience, the configuration of the wearing tool 5 will be described in five parts. The mounting tool 5 has a middle front portion 53, a right front portion 54, a right rear portion 55, a left front portion 56 and a left rear portion 57.

  The front right portion 54 is a portion extending between the position 12 and the position 16. The position 12 is located in front of the position 16 and on the left side. The right front portion 54 is curved in a convex shape toward the outside, that is, the front side and the right side of the region 10 surrounded by the mounting tool 5. The right rear portion 55 is a portion extending between the position 16 and the position 11. The position 11 is located behind the position 16 and on the left side. The right rear portion 55 is continuous with the right front portion 54. The right rear portion 55 is curved in a convex shape toward the outside of the region 10, that is, the rear side and the right side. In other words, the right front part 54 and the right rear part 55 constitute a right part 51 when the configuration of the wearing tool 5 is divided into three parts, a middle front part 53, a right part 51 and a left part 52. The right side portion 51 is connected to the right side of the middle front portion 53 and extends toward the rear side. The right portion 51 is curved in a convex shape toward the right side.

  The left front portion 56 is a portion extending between the position 14 and the position 17. Position 17 is located to the left of position 16. The position 14 is a position to the left of the position 12 and is located on the front side and the right side of the position 17. The left front portion 56 is curved in a convex shape toward the outside of the region 10, that is, the front side and the left side. The left rear portion 57 is a portion extending between the position 17 and the position 13. The position 13 is a position to the left of the position 11 and is located on the rear side and the right side of the position 17. The left rear portion 57 is continuous with the left front portion 56. The left rear portion 57 is curved in a convex shape toward the outside of the region 10, that is, the rear side and the left side. In other words, the left front portion 56 and the left rear portion 57 constitute the left portion 52 of the wearing tool 5. The left side portion 52 is connected to the left side of the middle front portion 53 and extends toward the rear side. The left side portion 52 is curved in a convex shape toward the left side.

  The middle front portion 53 is a portion extending in the left-right direction between the position 14 and the position 12. The middle front portion 53 is continuous with each of the right front portion 54 and the left front portion 56. The middle front portion 53 is curved in a convex shape toward the outside of the region 10, that is, the front side. At the center position 21 of the mounting tool 5 in the left-right direction, a distal end portion 61 that is the foremost end of the mounting tool 5 in the front-rear direction is arranged. At the positions 11 and 13, the rearmost ends 62 and 63 of the mounting tool 5 in the front-rear direction are arranged, respectively. At the position 16, the rightmost end portion 64 of the wearing tool 5 in the left-right direction is disposed. At the position 17, the leftmost end portion 65 of the wearing tool 5 in the left-right direction is disposed.

  The wearing tool 5 holds the user's head across the user's head when worn. The curved shape of the wearing tool 5 is part by part so that the right rear portion 55 and the left rear portion 57 can respectively press the user's temporal region and obtain a sufficient pressing force to support the weight of the HMD 1. Different. The position 12 is a position that is a boundary between the curved shape of the middle front portion 53 and the curved shape of the right front portion 54. The position 14 is a position that is a boundary between the curved shape of the middle front portion 53 and the curved shape of the left front portion 56. At the position 16, the boundary between the curved shape of the right front portion 54 and the curved shape of the right rear portion 55 is located. At the position 17, the boundary between the curved shape of the left front portion 56 and the curved shape of the left rear portion 57 is located.

  The radial direction of the curvature circle in contact with the surface facing the inside of the region 10 of the wearing tool 5 in plan view is defined as the thickness direction of the wearing tool 5. The sizes in the thickness direction of the middle front portion 53, the right front portion 54, and the left front portion 56 of the mounting tool 5 are substantially the same size. The sizes in the thickness direction of the right rear portion 55 and the left rear portion 57 are the thicknesses of the protrusions 66 and 67 (described later) with respect to the sizes in the thickness direction of the middle front portion 53, the right front portion 54, and the left front portion 56, respectively. Large by the size of the direction. The sizes in the vertical direction of the middle front portion 53, the right front portion 54, and the left front portion 56 are substantially the same. The sizes of the right rear portion 55 and the left rear portion 57 in the vertical direction gradually increase from the front side to the rear side, and are the largest in the vicinity of the end portions 62 and 63 and gradually toward the end portions 62 and 63. Becomes smaller.

  Projections 66 and 67 projecting into the region 10 are formed in the right rear portion 55 and the left rear portion 57, respectively. The protrusions 66 and 67 are provided in a form in which the inner surfaces 70 and 71 facing the inside of the region 10 of the right rear portion 55 and the left rear portion 57 are stepped out in the thickness direction toward the region 10. Therefore, the inner surfaces 70 and 71 each have a curved surface shape that follows the curved shapes of the right rear portion 55 and the left rear portion 57. Accordingly, the vertical sizes of the protrusions 66 and 67 are also gradually increased from the front side toward the rear side, are largest in the vicinity of the end portions 62 and 63, and gradually decrease toward the end portions 62 and 63.

  Holding grooves 68 and 69 extending in a groove shape along the circumferential direction with respect to the protruding direction are formed on the side surfaces of the protruding portions 66 and 67 with respect to the protruding direction (that is, the thickness direction), respectively. The holding grooves 68 and 69 are provided around the protrusions 66 and 67, respectively. The portion of the holding groove 68 that opens to the upper side surface of the protrusion 66 and the portion of the holding groove 68 that opens to the lower side surface extend along the curved shape of the right rear portion 55, respectively. Similarly, the portion of the holding groove 69 that opens to the upper side surface of the protrusion 67 and the portion of the holding groove 69 that opens to the lower side surface also extend along the curved shape of the left rear portion 57.

  A cable 39 (see FIG. 2) that electrically connects the image display unit 3 and an external device (not shown) is drawn from the image display unit 3. The cable 39 is wired along the arm portion 4 and the mounting tool 5. The holding grooves 68 and 69 hold the portion of the cable 39 wired in the mounting tool 5 in the groove. The vertical size (that is, the depth) of the holding grooves 68 and 69 is larger than the outer diameter of the cable 39. Therefore, the cable 39 held in the holding grooves 68 and 69 is not exposed outside the grooves from the openings of the holding grooves 68 and 69. The cable 39 drawn from the image display unit 3 passes through the arm unit 4 and is inserted into the holding groove 69 on the side close to the arm unit 4 (for example, the left side). The cable 39 is inserted into the holding groove 69 from the front end 69 </ b> A of the holding groove 69. The cable 39 is a portion that opens to the side surface on the upper side of the protruding portion 67 in the holding groove 69, and is wired through the groove. The cable 39 is guided by the holding groove 69 and pulled out from the rear end portion 69 </ b> B of the holding groove 69 to the outside of the mounting tool 5.

  The wearing tool 5 includes pads 75 to 77 that come into contact with the user's head when worn. The pads 75 to 77 are made of an elastic resin such as a silicon resin. The pad 75 is provided on the inner surface 72 facing the inside of the region 10 in the middle front portion 53 and including the position 21 at the center in the left-right direction of the wearing tool 5. The pad 75 extends in the left-right direction along the curved shape of the middle front portion 53 and protrudes in a direction away from the inner surface 72 (for example, rearward in FIG. 2) along the thickness direction. The size of the pad 75 in the vertical direction is substantially the same as or smaller than the size of the mounting tool 5 in the middle front portion 53 in the vertical direction. When the HMD 1 is mounted, the pad 75 contacts the forehead or frontal portion of the user and positions the mounting tool 5 on the head.

  The pads 76 and 77 are provided on the inner surface 70 of the right rear portion 55 and the inner surface 71 of the left rear portion 57, respectively. The pad 76 extends along the curved shape of the right rear portion 55 and protrudes in the thickness direction toward the region 10. The length in which the pad 76 extends in the direction along the curved direction of the right rear portion 55 is shorter than the length of the right rear portion 55. The vertical size of the pad 76 is substantially the same as or smaller than the vertical size of the right rear portion 55. The vertical size of the pad 76 is larger than the vertical size of the middle front portion 53, the right front portion 54, and the left front portion 56. In the present embodiment, the pad 76 is provided on the inner surface 70 at a portion from the approximate center in the direction along the curved shape of the right rear portion 55 to the end portion 62. The pad 77 extends along the curved shape of the left rear portion 57 and protrudes in the thickness direction toward the region 10. The length in which the pad 77 extends in the direction along the curved direction of the left rear portion 57 is shorter than the length of the left rear portion 57. The vertical size of the pad 77 is substantially the same as or smaller than the vertical size of the left rear portion 57. Further, the size of the pad 77 in the vertical direction is larger than the size in the vertical direction of the middle front portion 53, the right front portion 54 and the left front portion 56. In the present embodiment, the pad 77 is provided on the inner surface 71 at a portion from the substantially center to the end portion 63 in the direction along the curved shape of the left rear portion 57.

  As described above, the mounting tool 5 has flexibility. When the HMD 1 is mounted, the mounting tool 5 is separated by being pushed and spread by the user's hand with the end 62 and the end 63 facing the outside of the region 10 (for example, in the left-right direction). When the wearing tool 5 is fitted to the user's head, the pad 75 contacts the user's forehead or forehead, thereby positioning the wearing tool 5 in the front-rear direction on the head. When the expanded state of the end portions 62 and 63 is released, the right rear portion 55 and the left rear portion 57 of the mounting tool 5 are urged toward the inside of the region 10. The pads 76 and 77 are in contact with the right and left heads of the user, respectively. The inner surface 70 of the right rear portion 55 presses the right side of the user through the pad 76. Similarly, the inner surface 71 of the left rear portion 57 presses the left side of the user via the pad 77. The right rear portion 55 and the left rear portion 57 of the mounting tool 5 obtain a pressing force that presses the user's temporal region, and holds the user's head across the head. As described above, the inner surfaces 70 and 71 that are formed large in the vertical direction have a larger area in contact with the user's temporal region than the inner surface 72 of the middle front portion 53. Therefore, when the mounting tool 5 is mounted on the user's head, the pads 76 and 77 obtain a large frictional force with the head by increasing the contact area with the head. By ensuring the friction area, the wearing tool 5 can suppress the occurrence of positional deviation in the head. The pads 76 and 77 have a larger area in contact with the user's temporal region than the pad 75. Therefore, the right rear portion 55 and the left rear portion 57 can disperse the pressing force that presses the temporal region through the pads 76 and 77, respectively. That is, the HMD 1 can reduce the pressing force per unit area received by the user on the rear side head. Therefore, the user is less likely to feel pressure on the temporal region.

  Attachment portions 58 and 59 are provided at portions between the front end portion 61 on the front side in the front-rear direction and the end portions 64 and 65 on both sides in the left-right direction, respectively. The position 15 </ b> A where the attachment portion 58 is provided is a position on the right side of the position 21 and on the front side of the position 22. As described above, the position 22 is located at the center of the wearing tool 5 in the front-rear direction. The position 15 </ b> B where the attachment portion 59 is provided is a position on the left side of the position 21 and on the front side of the position 22. The attachment tool 5 can attach the connection mechanism 8 that connects the attachment tool 5 and the arm part 4 to the attachment parts 58 and 59. In the present embodiment, the coupling mechanism 8 is attached to the attachment portion 59. The connection mechanism 8 will be described later.

  Two holes 58A penetrating the wearing tool 5 in the thickness direction are formed in the attachment portion 58 (see FIG. 1). Similarly, two holes (not shown) penetrating the mounting tool 5 in the thickness direction are also formed in the attachment portion 59. A screw is inserted through the hole 58A. The connection mechanism 8 is attached to the attachment portions 58 and 59 by screws. That is, the image display unit 2 including the image display unit 3, the arm unit 4, and the coupling mechanisms 8 and 9 can be attached by selecting one of the attachment unit 58 and the attachment unit 59. When the image display unit 2 is attached to the attachment portion 58, the image display portion 3 is disposed on the right side of the wearing tool 5. The image display unit 3 can cause image light to enter the right eye of the user. When the image display unit 2 is attached to the attachment portion 59, the image display portion 3 is disposed on the left side of the wearing tool 5. The image display unit 3 can cause image light to enter the left eye of the user.

  As shown in FIG. 4, the image display unit 3 includes a half mirror 35, a lens unit 36, and an image unit 37 in a housing 31. The casing 31 has a substantially rectangular parallelepiped shape with curved corners. The housing 31 extends long in a predetermined direction. The housing 31 has a hollow box shape. The tip 31A, which is one end in the direction in which the casing 31 extends, is opened. In addition, a protruding portion 32 that protrudes rearward is formed on the base end portion 31 </ b> B that is the other end portion of the housing 31. A hole (not shown) penetrating in the front-rear direction is formed at the rear end of the protrusion 32. In the base end portion 31 </ b> B, a fixing portion 94 of the coupling mechanism 9 is connected to a position on the rear surface of the housing 31 on the right side of the protruding portion 32. The connection mechanism 9 will be described later.

  An image unit 37 is provided in the housing 31 at the base end portion 31B. The image unit 37 includes a known liquid crystal panel (not shown) and a control board (not shown). The liquid crystal panel generates image light by displaying an image on the left side. The control board is disposed on the right side of the liquid crystal panel. A cable 39 is connected to the control board. The cable 39 passes through the protrusion 32 and is drawn out of the image display unit 3 from the hole at the rear end of the protrusion 32. The control board receives image data transmitted from the external device via the cable 39. The control board outputs a control signal to the liquid crystal panel and displays an image corresponding to the image data on the liquid crystal panel. Instead of the liquid crystal panel, a two-dimensional display device such as a digital mirror device (DMD) or an organic EL may be used. Further, instead of the liquid crystal panel, a retinal scanning type projection device (Retinal Scanning Display) that projects two-dimensionally scanned light onto the retina of the user may be used.

  In the housing 31, a lens unit 36 is provided on the right side of the image unit 37. The lens unit 36 allows the image light emitted from the image unit 37 to pass therethrough and guides it to the distal end portion 31A side. The lens unit 36 includes a plurality of lenses (not shown). The lens unit 36 is held by the housing 31 so as to be movable in the left-right direction. An operation member 38 having a truncated cone shape and having a plurality of irregularities on the side surface is provided on the front surface of the housing 31. The operation member 38 is engaged with the lens unit 36 by a groove cam (not shown). When the operation member 38 is rotated, the lens unit 36 moves toward the distal end portion 31A side or the proximal end portion 31B side. As the lens unit 36 moves in the left-right direction, the focal length of the image light emitted from the image unit 37 changes. Therefore, the user can adjust the focus by rotating the operation member 38.

  A half mirror 35 is provided at the tip 31A. The half mirror 35 has a rectangular plate shape. The half mirror 35 can reflect a part (for example, 50%) of the light incident on the reflecting surface and transmit the other part. The reflective surface of the half mirror 35 is formed, for example, by vapor-depositing a metal such as aluminum or silver on a transparent resin or glass substrate so as to have a predetermined reflectance (for example, 50%). When the HMD 1 is mounted, the base end portion 31B of the housing 31 is disposed on the left side of the tip end portion 31A. That is, the image display unit 3 is used in a state of being arranged extending in the left-right direction. The half mirror 35 is disposed in front of the user's left eye, for example. Half mirror 35 is fixed to tip part 31A in the state where the reflective surface turned to the left side and the back side. The image light emitted from the image unit 37 in the housing 31 is condensed when passing through the lens unit 36. The condensed image light is incident on the half mirror 35. The half mirror 35 reflects the image light to the rear side and makes it incident on the left eye of the user. The user can visually recognize a virtual image based on the image light reflected by the half mirror 35. Further, the half mirror 35 can transmit external light incident from the front side to the rear side.

  As shown in FIGS. 1 to 3, 5, and 6, the arm portion 4 is made of resin, metal, or the like, and extends in a rod shape. The upper end portion 4 </ b> A of the arm portion 4 is connected to the mounting tool 5 by the connecting mechanism 8. The lower end 4 </ b> B of the arm unit 4 is connected to the image display unit 3 by the connecting mechanism 9. The arm unit 4 holds the image display unit 3 at a position separated from the mounting tool 5. As shown in FIG. 1, when the HMD 1 is mounted, the lower end 4B of the arm unit 4 is disposed on the lower side and the left side of the upper end 4A. The arm portion 4 is curved in a convex shape toward the outside of the region 10. In the present embodiment, the arm portion 4 is curved in a convex shape toward the left when the HMD 1 is mounted.

  As shown in FIGS. 5 and 6, the arm portion 4 includes a connection portion 41 at the upper end portion 4A. The connection portion 41 is a portion where the arm portion 4 is connected to the coupling mechanism 8. The connection portion 41 protrudes along the predetermined direction B (see FIG. 5) at the upper end portion 4A. The direction B is a direction in which the arm part 4 is inclined with respect to a direction C extending from the upper end part 4A toward the lower end part 4B. The connecting portion 41 is formed with a hole (not shown) extending along the direction B. A rod body of a ball stud 81 (described later) of the coupling mechanism 8 is inserted into the hole. That is, the rod body of the ball stud 81 extends along the direction B. The arm portion 4 is connected to the coupling mechanism 8 by fixing the rod body to the connection portion 41.

  The coupling mechanism 8 has two or more rotational degrees of freedom. The connection mechanism 8 of this embodiment is a known ball joint type movable part. The coupling mechanism 8 includes a ball stud 81, a socket housing portion 82, a fixing nut 83, and a holding portion 84. The ball stud 81 is a component in which a rod is connected to a sphere. The socket accommodating portion 82 has a cylindrical shape, and accommodates a socket (not shown) that makes spherical contact with the sphere of the ball stud 81. The fixing nut 83 is a lid that can be externally fitted to the opening of the socket housing portion 82 and fastened. The fixing nut 83 is formed with an insertion hole (not shown) through which the rod body of the ball stud 81 is inserted. The ball stud 81 has a movable range in which the rod body can move within the insertion hole with a sphere in contact with the socket as a fulcrum. As shown in FIG. 5, when the shaft of the rod is located at the center of the insertion hole, the ball stud 81 is located at the center of the movable range. At this time, the extending direction of the rod body of the ball stud 81, that is, the extending direction B of the connecting portion 41 coincides with a direction A (see FIG. 1) described later. That is, the movable range of the ball stud 81 is, for example, a predetermined solid angle (that is, within the range of the conical surface) with the direction A as the central axis. When the fixing nut 83 is fastened to the socket housing portion 82, the ball stud 81 is positioned with respect to the socket housing portion 82 by pressing the spherical body against the socket.

  The holding portion 84 is provided at the end of the socket housing portion 82 opposite to the side on which the fixing nut 83 is fitted. The holding portion 84 is a component that attaches the coupling mechanism 8 to the attachment portions 58 and 59 of the mounting tool 5. The holding portion 84 includes an upper wall 85, an inner wall 86, and an outer wall 87. The upper wall 85 is a portion that abuts on an upper surface of the mounting portion 58, 59 that faces upward when the HMD 1 is mounted on the head, of the side surface of the mounting tool 5. The inner side wall 86 is a part that contacts the inner surface facing the inside of the region 10 among the side surfaces of the mounting tool 5 in the attachment portions 58 and 59. The outer side wall 87 is a part that contacts the outer surface on the opposite side to the inner surface facing the inside of the region 10 among the side surfaces of the mounting tool 5 in the attachment portions 58 and 59. Two holes 87A (see FIG. 6) are formed in the outer side wall 87. When the holding portion 84 is attached to the attachment portions 58 and 59, the holding portion 84 is attached from the upper side of the attachment portions 58 and 59 so that the attachment portions 58 and 59 are sandwiched between the inner wall 86 and the outer wall 87. , 59. The attachment portions 58 and 59 are fixed to the attachment portions 58 and 59 by fastening a hole (not shown) with a screw inserted through the hole portion 58A and the hole portion 87A.

  The arm part 4 includes a connection part 42 at the lower end part 4B. The connecting portion 42 is a portion where the arm portion 4 is connected to the coupling mechanism 9. The connection part 42 protrudes along the direction B substantially the same as the connection part 41 in the lower end part 4B. The connecting portion 42 is also formed with a hole (not shown). A rod body of a ball stud 91 (described later) of the coupling mechanism 9 is inserted into the hole. That is, the rod body of the ball stud 91 extends along the direction B. The arm portion 4 is connected to the coupling mechanism 9 by fixing the rod body to the connection portion 42.

  The connection mechanism 9 has two or more rotational degrees of freedom. As shown in FIGS. 4 and 5, the connection mechanism 9 of the present embodiment is a known ball joint type movable part, like the connection mechanism 8. The connection mechanism 9 includes a ball stud 91, a socket housing portion 92, a fixing nut 93, and a fixing portion 94. The configurations of the ball stud 91, the socket accommodating portion 92, and the fixing nut 93 are the same as those of the coupling mechanism 8. When the shaft of the ball stud 91 is positioned at the center of the insertion hole (not shown) of the fixing nut 93, the ball stud 91 is positioned at the center of the movable range. At this time, the extending direction of the rod body of the ball stud 91, that is, the extending direction B of the connecting portion 42 coincides with the direction A (described later). That is, the movable range of the ball stud 91 is, for example, a predetermined solid angle (that is, within the range of the conical surface) with the direction A as the central axis.

  The fixing portion 94 is provided at an end portion of the socket housing portion 92 opposite to the side on which the fixing nut 93 is fitted (that is, the right end portion of the socket housing portion 92). The fixing unit 94 is a component that fixes the coupling mechanism 9 to the image display unit 3. The fixing part 94 includes a first fixing part 95, a second fixing part 96, and a stepped connection part 97. The first fixing portion 95 is connected to the socket accommodating portion 92. The first fixing portion 95 is located on the rear side of the protruding portion 32. The left end of the first fixing portion 95 to which the socket accommodating portion 92 is connected is located slightly to the left of the left end of the protruding portion 32. The second fixing portion 96 is located forward and to the right of the first fixing portion 95. The second fixing part 96 is located on the right side of the protruding part 32 on the rear surface of the image display part 3. The second fixing unit 96 is connected to the image display unit 3. For example, the second fixing portion 96 is connected to the base end portion 31 </ b> B of the image display portion 3 on the rear side of the half mirror 35 in the front-rear direction. The step-like connecting portion 97 connects the first fixing portion 95 and the second fixing portion 96 in a step shape. The step-like connecting portion 97 extends from the front side portion of the first fixing portion 95 across the rear end of the protruding portion 32 in the left-right direction. The step-like connecting portion 97 further extends to the left side portion of the second fixing portion 96 along the protruding portion 32 on the right side of the protruding portion 32. A hole 97A penetrating in the front-rear direction is formed in a portion where the stepped connection portion 97 crosses the rear end of the protruding portion 32. The cable 39 led out from the hole at the rear end of the protrusion 32 is inserted into the hole 97A.

  The HMD 1 having the above configuration takes the form described below when the image display unit 2 is attached to the attachment portion 58 and the coupling mechanisms 8 and 9 are in the center of the movable range. As shown in FIG. 1 and FIG. 2, a direction A that passes through the position 15B where the attachment portion 59 is provided and goes from the inside of the region 10 to the outside is defined as a direction A. The coupling mechanism 8 is provided so as to protrude to the outside of the region 10 in the direction A with respect to the mounting tool 5. The upper end portion 4 </ b> A of the arm portion 4 is connected to the coupling mechanism 8 on the outer side of the region 10 in the direction A than the coupling mechanism 8. That is, the upper end portion 4 </ b> A of the arm portion 4 is disposed at a position away from the mounting tool 5 to the outside of the region 10 in the direction A by the connecting mechanism 8. The arm portion 4 and the coupling mechanism 8 are connected on the left side of the left end portion 65 of the wearing tool 5. That is, when the coupling mechanism 8 extends in the direction A, the upper end portion 4 </ b> A of the arm portion 4 can be positioned on the left side of the end portion 65. If the direction A is a direction along the left-right direction, the connection mechanism 8 can dispose the upper end portion 4 </ b> A of the arm portion 4 on the left side of the end portion 65.

  Further, the position 15B at which the attachment portion 59 is provided is a position in front of the center 22 in the front-rear direction of the wearing tool 5 and a position on the left side of the position 21 in the center in the left-right direction. At the time of wearing, the position 15B is closer to the user's eyes than the position 22 and the position 13. Therefore, the arm part 4 can extend at an angle close to the up-down direction from the upper end part 4A toward the lower side as compared with the case where the attachment part 59 is provided at the position 22 or a position on the rear side thereof. Further, the length of the arm portion 4 can be set shorter than in the case where the attachment portion 59 is provided at the position 22 or a position on the rear side thereof. In the present embodiment, the length of the arm portion 4, specifically, the distance between the connection portion 41 and the connection portion 42 in the arm portion 4 is, for example, 60 mm.

  And the lower end part 4B of the arm part 4 is arrange | positioned under the upper end part 4A and the left side. In this case, the coupling mechanism 9 is disposed outside the mounting tool 5 in plan view. Furthermore, the arm part 4 curves in a convex shape toward the left side. That is, the arm part 4 can have a gap larger than the length in the left-right direction of the coupling mechanism 8 between the arm part 4 and the mounting tool 5.

  The coupling mechanism 9 is connected to the proximal end portion 31 </ b> B of the image display unit 3 on the rear side of the image display unit 3. In other words, the connection mechanism 9 can arrange the image display unit 3 in front of the connection mechanism 9. Further, the coupling mechanism 9 is arranged on the left side of the mounting tool 5 by the coupling mechanism 8 and the arm portion 4. Since the housing 31 of the image display unit 3 extends in the left-right direction, the distal end portion 31A is disposed to the right of the proximal end portion 31B. Therefore, the housing 31 of the image display unit 3 can arrange the half mirror 35 in front of the left eye of the user.

  As described above, the arm portion 4 having a relatively short length and extending along the direction C at an angle close to the vertical direction can relatively reduce the holding torque applied to the coupling mechanism 8. Further, the arm portion 4 is disposed at a position separated to the left from the mounting tool 5 by the connecting mechanism 8. Therefore, when the HMD 1 is mounted on the head of the spectacle user, the arm unit 4 is unlikely to contact the spectacle frame.

  As described above, the connecting mechanism 8 that connects the mounting tool 5 and the arm unit 4 protrudes from the positions 15 </ b> A and 15 </ b> B of the mounting tool 5 to the outside of the mounting tool 5. The positions 15 </ b> A and 15 </ b> B are positions that are shifted to the right or left from the center in the left-right direction when the mounting tool 5 is mounted, and are positions on the front side of the center in the front-rear direction when the mounting tool 5 is mounted. By setting the positions as positions 15A and 15B, the HMD 1 can be configured such that the lower end portion 4B of the arm portion 4 is disposed on the lower side in the vertical direction when the mounting tool 5 is mounted. Therefore, the HMD 1 is long enough to reach the front face of the user's face from the positions 15A and 15B, even if the arm portion 4 does not reach the front face of the face from the rear side of the user's ear, for example. The image display unit 3 can be sufficiently placed in front of the user's eyes. In addition, 60 mm which is the length of the arm part 4 described above is a sufficient length to reach the front face of the user's face from the positions 15A and 15B. A coupling mechanism 9 that couples the image display unit 3 and the arm unit 4 is arranged outside the region 10 rather than the mounting tool 5. Therefore, when the HMD 1 is mounted on the head of the spectacle user, the arm unit 4 is disposed on the outer side of the region 10 with respect to the spectacle frame, and thus is difficult to contact the spectacle frame.

  The lower end portion 4B of the arm portion 4 is positioned on the lower side with respect to the upper end portion 4A connected to the coupling mechanism 8. That is, the direction of the force received by the coupling mechanism 8 by the gravity received by the image display unit 3 and the arm unit 4 is close to the direction of gravity. Therefore, the torque applied to the coupling mechanism 8 due to the gravity received by the image display unit 3 and the arm unit 4 is smaller than the case where the lower end portion 4B is disposed forward with respect to the upper end portion 4A, for example. If the torque applied to the coupling mechanism 8 can be made smaller than before, the HMD 1 can make the force required to move the arm unit 4 smaller when installed than the conventional one, so that the position of the image display unit 3 can be finely adjusted. Can do.

  In addition, when the arm part 4 is formed with a short length (for example, 60 mm) that can reach the front face of the user's face from the positions 15A and 15B, for example, the arm part 4 is, for example, from the rear side of the user's ear. Compared to the case where the arm portion 4 is formed with a length that reaches the front surface of the face, the weight of the arm portion 4 is reduced. In this case, the HMD 1 can suppress the weight of the arm portion 4 that is applied to the coupling mechanism 8 as described above. The HMD 1 can reduce the torque applied to the coupling mechanism 8 due to the gravity received by the image display unit 3 and the arm unit 4 as compared with the case where the weight of the arm unit 4 is not reduced. Similarly to the above, if the torque applied to the coupling mechanism 8 can be made smaller than before, the HMD 1 can make the force required to move the arm unit 4 during mounting smaller than before, so that the position of the image display unit 3 can be finely adjusted. Can be made easier. Further, when the arm part 4 is formed with a short length that reaches the front face of the user's face from the positions 15A and 15B, the HMD 1 further displays an image by a slight movement of the head when worn. When the part 3 shakes, the swing width can be reduced. In this case, the HMD 1 can suppress blurring of the image displayed on the image display unit 3.

  It is desirable to arrange the arm unit 4 at a position farther in the left-right direction than in front of the user so as not to disturb the user's field of view. The lower end part 4B of the arm part 4 and the base end part 31B of the image display part 3 are connected by a connection mechanism 9. That is, the base end portion 31B of the image display unit 3 is disposed at a position separated in the left-right direction from the front of the user. Therefore, if the image display unit 3 is arranged with the longitudinal direction of the casing 31 along the left-right direction, the tip 31A can be arranged close to the user's eyes. Therefore, HMD1 can arrange | position the half mirror 35 in front of a user's eyes, without forming the connection mechanism 9 long or curving the arm part 4 so that the image display part 3 may reach in front of eyes.

  When the HMD 1 is worn by a spectacle user, the spectacle lens is disposed in front of the eyes, and therefore the image display unit 3 needs to be disposed in front of the spectacle lens. Since the coupling mechanism 9 is connected to the base end portion 31 </ b> B on the rear side of the image display unit 3, the HMD 1 can arrange the image display unit 3 on the front side of the coupling mechanism 9. Therefore, since the HMD 1 does not require a long arm portion 4 because the image display portion 3 is disposed at a position avoiding the spectacle lens, the image display portion 3 and the arm portion 4 are not shaken with respect to the mounting tool 5. Can be suppressed.

  The arm unit 4 is disposed on the outer side of the region 10 in the left-right direction with respect to the wearing tool 5 and the image display unit 3. Accordingly, when the HMD 1 is mounted on the head of the spectacle user, the arm unit 4 is unlikely to contact the spectacle frame. Moreover, the arm part 4 is hard to obstruct a user's visual field.

  The connection mechanism 8 extends outward from the mounting device 5 along the left-right direction. Therefore, the arm part 4 connected to the coupling mechanism 8 is disposed laterally from the front of the eye at the time of wearing, and hardly disturbs the visual field.

  The coupling mechanism 8 is connected to the upper end portion 4 </ b> A of the arm portion 4 on the outer side of the region 10 in the left-right direction with respect to the left-right end portions 64, 65 of the mounting tool 5. Therefore, the arm portion 4 is reliably disposed on the outer side of the region 10 with respect to the end portion in the left-right direction of the mounting tool 5. Therefore, since the arm part 4 is arrange | positioned from the side before the eyes at the time of mounting | wearing, it is hard to disturb a visual field.

  The arm portion 4 can be positioned on the outer side of the region 10 in the left-right direction with respect to the spectacle frame when the arm portion 4 is worn on the head of the spectacle user. Therefore, the arm part 4 is difficult to contact the spectacle frame.

  Since the coupling mechanisms 8 and 9 have two or more rotational degrees of freedom, the HMD 1 can easily position the image display unit 3 while maintaining the positional relationship between the mounting tool 5, the arm unit 4, and the image display unit 3. Can be adjusted.

  When the coupling mechanism 8 is at the center of the movable range, the arm portion 4 extends from the upper end portion 4A in a direction in which the lower end portion 4B is located outside the region 10. Therefore, when worn on the head of a spectacle user, the lower end 4B side, which is disposed closer to the spectacle frame than the upper end 4A, is positioned on the outer side of the region 10 with respect to the upper end 4A in the left-right direction. Therefore, the arm part 4 is difficult to contact the spectacle frame.

  When the HMD 1 is mounted, each portion of the mounting tool 5 fits in the shape of the user's head and securely holds the head, so that displacement of the mounting position is suppressed.

  In addition, this invention is not limited to the said embodiment, A various change is possible. The protrusions 66 and 67 having the holding grooves 68 and 69 may be omitted. There may be a plurality of pads 75 to 77, and the pads 75 to 77 may be intermittently arranged in the direction along the direction in which the wearing tool 5 is curved. Instead of the half mirror 35, a reflecting member that does not transmit light from the outside and substantially reflects the incident image light may be used. Instead of the half mirror 35, an optical path deflecting member such as a prism or a diffraction grating may be used. The coupling mechanisms 8 and 9 do not have to be ball joint movable parts. For example, any movable part having two or more rotational degrees of freedom by combining two or more hinges may be used. The mounting tool 5 may not be configured to be entirely curved. The curved portion of the mounting tool 5 may be a part of the mounting tool 5. The direction A is not limited to the direction along the left-right direction, and may be any direction that passes from the inside of the region 10 to the outside through the position 15A or the position 15B.

  The mounting tool 5 may be annular. That is, there may be a portion extending between the position 11 and the position 13 as well as the middle front portion 53 extending between the position 12 and the position 14. Alternatively, like the HMD 101 shown in FIG. 7, the wearing tool 105 may have a substantially annular shape with the front side opened. That is, the mounting tool 105 may have a portion that opens between the position 12 and the position 14 and extends between the position 11 and the position 13.

  In the above embodiment, the front-rear direction corresponds to the “first direction” of the present invention. The left-right direction corresponds to the “second direction” of the present invention. The vertical direction corresponds to the “third direction” of the present invention. The position 11 corresponds to the “first position” of the present invention. The position 12 corresponds to the “second position” of the present invention. The position 13 corresponds to the “third position” of the present invention. The position 14 corresponds to the “fourth position” of the present invention. The positions 15A and 15B correspond to “specific positions” in the present invention. The position 16 corresponds to the “fifth position” of the present invention. The position 17 corresponds to the “sixth position” of the present invention. The position 21 corresponds to the “center position in the second direction” of the present invention. The position 22 corresponds to the “center position in the first direction” of the present invention. The right part 51 corresponds to the “first part” of the present invention. The left part 52 corresponds to the “second part” of the present invention. The middle front portion 53 corresponds to the “third portion” of the present invention. The right rear portion 55 corresponds to a “fourth portion” of the present invention. The right front portion 54 corresponds to the “fifth portion” of the present invention. The left rear portion 57 corresponds to the “sixth portion” of the present invention. The left front portion 56 corresponds to a “seventh portion” of the present invention.

  The image display unit 3 corresponds to the “image display device” of the present invention. The upper end portion 4A corresponds to the “one end portion” of the present invention. The lower end 4B corresponds to the “other end” of the present invention. The connecting mechanism 8 corresponds to the “first connecting mechanism” of the present invention. The connecting mechanism 9 corresponds to the “second connecting mechanism” of the present invention. The image unit 37 corresponds to an “image light forming unit” of the present invention. The half mirror 35 corresponds to the “deflecting part” of the present invention. The connecting portion 41 corresponds to the “connecting portion” of the present invention.

1 HMD
2 Image display unit 3 Image display unit 4 Arm unit 4A Upper end 4B Lower end 5 Mounting tool 8 Linking mechanism 9 Linking mechanism 10 Regions 11, 12, 13, 14, 15A, 15B
16, 17, 21, 22 Position 31 Housing 31A Front end 31B Base end 35 Half mirror 37 Image unit 41 Connection portion 51 Right portion 52 Left portion 53 Middle front portion 54 Right front portion 55 Right rear portion 56 Left front portion 57 Left rear Part 64, 65 end

Claims (12)

An wearing tool having a portion that is formed in an open or closed ring and that curves in a convex shape in a first direction and a second direction orthogonal to the first direction;
An image display device including an image light generation unit that generates image light, and an image display unit that displays an image based on the image light generated by the image light generation unit ;
It is an arm portion that extends in a rod shape while curving in a convex shape, and has one end portion arranged on one side in the third direction perpendicular to the first direction and the second direction from the other end portion, An arm connected to the mounting tool and connected to the image display device at the other end;
Identification of one side or the other side in the second direction with respect to the center position of the wearing tool in the second direction and a position on the one side in the first direction with respect to the center position of the wearing tool in the first direction. A first connection mechanism that connects to the mounting tool at a position and connects to the one end of the arm unit and connects the mounting tool and the arm unit, and is surrounded by a curved shape of the mounting tool In the fourth direction from the inside to the outside of the region through the specific position, the one end portion is disposed on the outer side of the first coupling mechanism, and protrudes to the outside of the region from the wearing tool. A first coupling mechanism provided;
A second connection that is disposed on the outer side of the wearing tool in the fourth direction, is connected to the other end portion of the arm portion and the image display device, and connects the arm portion and the image display device. A head-mounted display characterized by comprising a mechanism.
The housing of the image display device is arranged extending in the second direction,
The image display device includes:
An image light forming portion provided in the housing and emitting image light along the second direction;
A deflection unit that is provided at a tip portion that is one of end portions in the second direction of the housing and deflects the image light emitted from the image light forming unit toward the other side in the first direction; With
2. The head mounted display according to claim 1, wherein the second coupling mechanism is connected to a proximal end portion that is an end portion on the opposite side of the distal end portion of the housing of the image display device.   3. The head mounted display according to claim 2, wherein the second coupling mechanism is connected to the base end portion of the image display device on the other side in the first direction with respect to the deflection unit.   4. The head mounted display according to claim 1, wherein the arm portion is disposed outside the region in the second direction with respect to the wearing tool and the image display device. 5.   The head mounted display according to any one of claims 1 to 4, wherein the fourth direction is a direction along the second direction.   The said 1st connection mechanism is connected to the said one end part of the said arm part in the outer side of the said area | region in the said 2nd direction rather than the edge part of the said 2nd direction of the said mounting tool. The described head mounted display.   The head according to any one of claims 1 to 6, wherein a portion of the arm portion between the one end portion and the other end portion is curved in a convex shape toward the outside of the region. Mount display. The first connecting mechanism connects the mounting tool and the arm part in a state where the arm part has a degree of freedom of rotation of two or more axes with respect to the mounting tool.
2. The second connection mechanism connects the arm unit and the image display device in a state where the image display device has a degree of freedom of rotation of two or more axes with respect to the arm unit. 8. The head mounted display according to any one of 7 to 7. The one end portion of the arm portion includes a connection portion that protrudes from the one end portion and connects to the first coupling mechanism,
When the first connecting mechanism connects the mounting tool and the arm part at the center of the movable range,
The connecting portion protrudes from the one end portion along the second direction,
The said arm part is extended in the direction where the said other end part is located in the other side of the said 3rd direction with respect to the said one end part, and the outer side of the said area | region in the said 2nd direction. Head mounted display. The wearing tool is
A first portion extending between a first position and a second position located on one side of the first direction relative to the first position;
A third position located in one of the second directions with respect to the first position, and a position in one of the second directions with respect to the second position, and in the first direction with respect to the third position. A second portion extending between a fourth position located on one side;
A third portion extending between at least one of the first position and the third position and between the second position and the fourth position and continuing to each of the first portion and the second portion. And
The head mounted display according to any one of claims 1 to 9, wherein at least a part is curved in a convex shape toward the outside of the region. The first part is
A fourth portion extending between the first position and a fifth position located on the one side in the first direction and the other side in the second direction from the first position;
A fifth portion extending between the fifth position and the second position located on the one side in the first direction and the one side in the second direction from the fifth position;
The second part is
A sixth portion extending between the third position and a sixth position located on the one side in the first direction and the one side in the second direction from the third position;
The seventh portion extending between the sixth position and the fourth position located on the one side in the first direction and the other side in the second direction with respect to the sixth position. The head mounted display according to 10. An image display unit that can be attached to a head and can be attached to an attachment that curves along the shape of the head,
An image display device including an image light generation unit that generates image light, and an image display unit that displays an image based on the image light generated by the image light generation unit ;
An image display device for displaying an image;
The first direction corresponding to the front-rear direction when the head of the wearing device is mounted and the second direction corresponding to the second direction corresponding to the left-right direction when the head of the wearing device is mounted are orthogonal to the first direction. In the third direction corresponding to the up-and-down direction when the mounting tool is mounted on the head, the arm extends in a bar shape while being curved in a convex shape, and has one end disposed on one side in the third direction from the other end. An arm connected to the mounting tool at the one end and connected to the image display device at the other end;
At a position on the front side when wearing the head from the center position of the wearing tool in the first direction, and at a position on the left side or right side when wearing the head from the center position of the wearing tool in the second direction. A first connecting mechanism that is attached to the mounting tool at a specific position and is connected to the one end of the arm unit and connects the mounting tool and the arm unit, and is surrounded by a curved shape of the mounting tool. In the fourth direction from the inside of the region that passes through the specific position to the outside of the region, the one end portion is disposed on the outer side of the first coupling mechanism, and the outer side of the region is more than the mounting tool. A first coupling mechanism provided to project;
A second connection that is disposed on the outer side of the wearing tool in the fourth direction, is connected to the other end portion of the arm portion and the image display device, and connects the arm portion and the image display device. And an image display unit.

Images