JP5273169B2 - Head mounted display - Google Patents

Abstract

The purpose of the present invention is to provide a see-through head mounted display capable of suppressing leakage to the outside of image light that passes through a half mirror, without obstructing the field of vision of a viewer. [Solution] A head mounted display comprising: an image display unit that emits the image light; a half mirror that reflects the image light emitted by the image display unit and projects same to the eye of the viewer; and a support frame capable of supporting the image display unit on the head of the viewer. The support frame is configured as an eyeglass type having a front section arranged in front of the face of the viewer and temple sections connected to the left and right end sections of the front section and which are for hooking on to the ears of the viewer. The image display unit is attached to either the left or right temple section and a visibility obstruction member for reducing the visibility of the image light that has passed through the half mirror is arranged in the vicinity of the center of the front section.

Description

  The present invention relates to a head-mounted display, and more particularly to a see-through type head-mounted display that transmits external light and can visually recognize an external image.

  Conventionally, a head mounted display (HMD) in which a small image display unit having a projection unit for projecting image light onto an observer's eyes is attached to a support unit mounted on the observer's head is known. It has been. As the projection unit of the image display unit, an optical scanning type in which laser light emitted from a light source is two-dimensionally scanned and projected onto the observer's eyes, or an electronic image from a liquid crystal display device is applied to the observer's eyes. There is a liquid crystal display type to project.

  In addition, among such HMDs, an external image cannot be visually recognized, and as shown in FIG. 10, image light Lb is transmitted by the half mirror 100 while transmitting the external light La using the half mirror 100. There is a so-called see-through type in which the image is reflected and projected to the eyes of the observer M1, and the external image can be visually recognized together with the display image.

  In the see-through type HMD using a half mirror, the image light Lb from the image display unit 200 is reflected by the half mirror 100 as shown in FIG. . That is, the transmitted image light Lb1 is emitted to the outside as it is. Therefore, for example, in a place where many people gather, the image light Lb1 emitted to the outside world may enter the eyes of another person M2 and cause discomfort. Furthermore, even if the display image has a highly confidential content, the leaked image light Lb1 may cause the content of the display image to be known to others M2.

  Therefore, in consideration of leakage of image light, as shown in FIG. 10B, the light shielding plate 300 is placed at a position where the image light Lb1 (FIG. 10A) transmitted through the half mirror 100 is shielded from the outside. An HMD having a configuration to hold has been proposed (see, for example, Patent Document 1).

  In FIG. 10, reference numeral 210 denotes a liquid crystal display, for example, disposed in the image display unit 200, reference numeral 400 denotes a glasses-type support that holds the image display unit 200, and reference numeral F denotes an observer M1. Is shown.

JP 2010-134134 A

  With the above-described HMD disclosed in Patent Document 1, leakage of image light that passes through the half mirror to the outside world is suppressed without hindering the characteristics of the see-through type head-mounted display that can visually recognize the outside world image. be able to.

  However, even if there is leakage of image light to the outside world, there is no problem if the leaked light is not visually recognized from the outside world. From the viewpoint of energy saving, it is preferable to waste half of the image light. Absent. Further, if the light is suppressed by shading, the generation of stray light cannot be completely suppressed, and there is a concern that it may cause noise in the display image. Further, since the consideration for the arrangement of the light shielding plate was insufficient, the light shielding plate was a factor that obstructed the view of the observer (see arrow F indicating the line of sight in FIG. 10B).

  It is an object of the present invention to provide a see-through type head mounted display capable of suppressing the leakage of image light transmitted through a half mirror from the outside even if there is leakage to the outside. It is aimed.

In order to solve the above problems, an invention according to claim 1 is directed to an image display unit that emits image light, and a half mirror that reflects the image light emitted from the image display unit and projects the image light onto an observer's eyes. And a support frame capable of supporting the image display unit on an observer's head, the image light transmitted through the half mirror can be transmitted to the support frame, and the external environment of the transmitted image light A visibility-inhibiting member that can reduce the visibility from the eye, and the visibility-inhibiting member is connected to the eye width line that connects the eyes of the observer, at least from the observer in the half mirror The head mounted display was arranged in an area defined by a convergence point located between the end and a line extending substantially parallel to the eye width line .

According to a second aspect of the present invention, in the head mounted display according to the first aspect, the visibility-inhibiting member is a light diffusing member that diffuses image light transmitted through the half mirror .

The invention according to claim 3, in the head mounted display according to claim 1, wherein the light diffusing member is characterized in that the diffusion direction of light is defined.

According to a fourth aspect of the present invention, there is provided an image display unit that emits image light, a half mirror that reflects the image light emitted from the image display unit and projects it on the eyes of an observer, and the image display unit. A support frame that can be supported by the observer's head, the image light transmitted through the half mirror can be transmitted through the support frame, and the visibility of the transmitted image light from the outside is reduced. The visibility-inhibiting member made possible is held, and the support frame is connected to the front part disposed in front of the observer's face and both right and left ends of the front part, and is hooked on the observer's ear. An eyeglass type comprising a temple portion for attaching the image display unit to any one of the left and right temple portions, and the visibility hindering portion in the vicinity of the center portion of the front portion Characterized by being arranged.

The invention according to claim 5 is the head-mounted display according to claim 4 , wherein the visibility-inhibiting member is held by a holding member, and the holding member is attached in the vicinity of the central portion of the front portion. It is characterized by.

According to a sixth aspect of the present invention, there is provided an image display unit that emits image light, a half mirror that reflects the image light emitted from the image display unit and projects it on the eyes of an observer, and the image display unit. A support frame that can be supported by the observer's head, the image light transmitted through the half mirror can be transmitted through the support frame, and the visibility of the transmitted image light from the outside is reduced. The visibility-inhibiting member made possible is held, the visibility-inhibiting member is held by the holding member, the holding member is connected to the image display unit, and the holding member is protected against dust from the image display unit. It is formed of a transparent member having a protective function, and the visibility impeding member is attached to the transparent member .

According to a seventh aspect of the present invention, there is provided an image display unit that emits image light, a half mirror that reflects the image light emitted from the image display unit and projects it on the eyes of an observer, and the image display unit. A support frame that can be supported by the observer's head, the image light transmitted through the half mirror can be transmitted through the support frame, and the visibility of the transmitted image light from the outside is reduced. The visibility-inhibiting member made possible is held, the visibility-inhibiting member is held by the holding member, and the proximal end portion of the holding member is not disturbed by the observer's field of view. The distal end portion is formed in an arch shape extending so as to pass above the line of sight of the observer .

According to an eighth aspect of the present invention, there is provided an image display unit that emits image light, a half mirror that reflects the image light emitted from the image display unit and projects it on the eyes of an observer, and the image display unit. A support frame that can be supported by the observer's head, the image light transmitted through the half mirror can be transmitted through the support frame, and the visibility of the transmitted image light from the outside is reduced. The visibility-inhibiting member made possible is held, and the support frame is a dedicated spectacle-type frame for fixing the visibility-inhibiting member .

According to a ninth aspect of the present invention, there is provided an image display unit that emits image light, a half mirror that reflects the image light emitted from the image display unit and projects it on the eyes of an observer, and the image display unit. A support frame that can be supported by the observer's head, the image light transmitted through the half mirror can be transmitted through the support frame, and the visibility of the transmitted image light from the outside is reduced. The visibility-inhibiting member made possible is held, and the optical axis of the image light is inclined toward the face side so that the direction of the image light emitted from the image display unit gradually approaches the face .

  According to the present invention, the visibility inhibiting member for reducing the visibility of the image light transmitted through the half mirror is disposed in the vicinity of the center portion of the front portion disposed in front of the observer's face. Leakage to the outside world can be suppressed, and there is no possibility that a display image that is, for example, confidential content will be viewed by a third party. Moreover, since the visibility hindering member does not hinder the view of the observer, it can be used comfortably without fear of impairing the usability of the HMD.

It is explanatory drawing by the planar view of the head mounted display which concerns on embodiment. It is explanatory drawing by planar view of the head mounted display which concerns on a comparative example. It is explanatory drawing of the area | region prescribed | regulated by a convergence angle. It is explanatory drawing of the head mounted display which concerns on other embodiment. It is explanatory drawing of the head mounted display which concerns on other embodiment. It is explanatory drawing of the head mounted display which concerns on other embodiment. It is explanatory drawing of the head mounted display which concerns on other embodiment. It is explanatory drawing of the head mounted display which concerns on other embodiment. It is explanatory drawing of the head mounted display which concerns on other embodiment. It is explanatory drawing of the conventional head mounted display.

  Hereinafter, a head-mounted display (hereinafter sometimes referred to as “HMD”) according to the present embodiment will be described with reference to the drawings.

[Overview of HMD]
First, the overall configuration of the HMD will be described. As shown in FIG. 1, the HMD according to the present embodiment includes a liquid crystal display device 10 that displays an electronic image, and displays a monocular image that emits image light Lb that is visually recognized as a display image to the eyes E of the observer. A unit 1 and a half mirror 9 that reflects the image light Lb emitted from the image display unit 1 and projects it onto the eyes of the observer M1 are provided. That is, the HMD according to the present embodiment causes the external light La transmitted through the half mirror 9 and the image light Lb reflected by the half mirror 9 to enter the eye E of the observer M1, and image light is displayed on the outside scene by the external light La. It is a see-through type that allows the observer M1 to visually recognize the display images by Lb.

  In addition, the HMD transmits a control signal to the liquid crystal display device 10 and includes a control unit 2 including a control unit that performs drive control of the entire HMD and an operation unit that performs operations including on / off of the HMD, A transmission cable 3 for connecting the image display unit 1 is provided.

  Further, the HMD can be attached to the image display unit 1 and can be mounted on the head of the observer M1, and serves as a support frame that can support the image display unit 1 on the head of the observer M1. And a glasses-type frame 6.

  The control unit 2 is configured by a box-shaped casing that can be carried in a pocket of the clothes of the observer M1 or attached to the waist or the like. Then, an image signal corresponding to the content data stored in the built-in content storage unit is transmitted to the liquid crystal display device 10 of the image display unit 1 via the transmission cable 3 by performing an activation operation via an operation unit (not shown). can do.

  Further, the control unit 2 can be provided with, for example, an external input / output terminal to input / output content data to / from an external personal computer or the like. Here, the content data includes at least one of data for displaying characters, data for displaying still images, and data for displaying moving images. Document files, image files, video files, etc. used on personal computers.

  The eyeglass-type frame 6 that is a support frame of the image display unit 1 is composed of a front portion 15 and left and right temple portions 16, 16. The unit 1 can be easily placed on either the left side or the right side of the observer M1. In the present embodiment, the image display unit 1 is arranged on the left side of the observer M1 and is attached to the left side of the front part 15 via the attachment 7. However, it may be attached to the right side of the front part 15. Is possible.

  The image display unit 1 includes a rectangular box-shaped casing 12 in which the liquid crystal display device 10 is built. A half mirror support member 91 is provided on the distal end surface of the casing 12 on the side away from the eye E. The base end of the half mirror 9 is connected to the mirror support member 91. One end of the transmission cable 3 is connected to the base end surface of the casing 12.

  With this configuration, a part of the image light Lb emitted from the liquid crystal display device 10 and causing the viewer M1 to visually recognize the content as a display image is reflected by the half mirror 9 and enters the eye E of the viewer M1 for display. Images can be recognized. Further, as shown in the drawing, since the half mirror 9 is provided so as to face the eye E of the observer M1, the external light La passes through the half mirror 9 and is incident on the eye E of the observer M1. Therefore, the observer M1 can visually recognize the display image by the image light Lb superimposed on the outside scene by the external light La.

  On the other hand, part of the image light Lb passes through the half mirror 9 and leaks to the outside. For example, if the display image representing the content is highly confidential, the content may be known if the leaked image light Lb is incident on the eyes of a third party.

  Therefore, in the present embodiment, as shown in the drawing, the visibility-inhibiting member 5 that reduces the visibility of the image light Lb that has passed through the half mirror 9 so as to be positioned in the vicinity of the center portion of the front portion 15 of the spectacle-shaped frame 6. It is set as HMD which arranged. The visibility inhibiting member 5 is preferably a light diffusing member that diffuses the image light Lb transmitted through the half mirror 9, for example. This is from the viewpoint of suppressing as much as possible that the content details are known while making the surrounding people aware that the HMD is being used. The visibility-inhibiting member 5 is not limited to the light diffusing member, and may be a light-shielding member that completely blocks the image light Lb transmitted through the half mirror 9.

[Visibility hindering member mounting structure]
Here, the mounting structure of the visibility impeding member 5 will be specifically described. As shown in FIG. 1, it is the front end of a half mirror support member 91 protruding from the front end of the image display unit 1, and is further viewed from the end on the far side as viewed by the observer, and further a visibility inhibiting member holding member (hereinafter “ 50 ”(referred to as“ holding members ”) are connected and extended toward the right eye side.

  And the base end of the visibility inhibiting member 5 formed in the substantially rectangular plate shape is connected and held at the tip of the holding member 50. At this time, the visibility impeding member 5 is arranged in the predetermined region S.

  Here, the predetermined region S is the eye width line d connecting the left and right eyes E, E of the observer, and at least the eye width line d from the far end of the half mirror 9 as viewed from the observer. It is an area defined by a convergence point located between the lines extending substantially in parallel. The convergence point is a position at which the lines of sight of the left and right eyes E and E converge on the object to be viewed. In short, the point of convergence indicates a point at which the lines of sight of the left and right eyes E and E intersect.

  In the present embodiment, as shown in the figure, in plan view, the angle of the apex of a substantially isosceles triangle with the eye width line d, which is the distance between the left and right eyes E, as the base, and the distance f to the visual object as the height. Within the angle of convergence, and within the range defined by the angle θ close to the left eye E out of the angle θ that forms ½ of the angle of convergence, the eye width line from the proximal end of the half mirror 9 The visibility inhibiting member 5 is disposed at the tip of the holding member 50 that extends substantially in parallel with d. The convergence angle refers to an angle formed by the lines of sight of the left and right eyes E and E being converged to the position of the visual target.

  FIG. 2 shows a comparative example in which the arrangement of the visibility inhibiting member 5 is a conventionally known arrangement. As shown in the figure, in the comparative example, even if the visibility-inhibiting member 5 is provided, the visibility-inhibiting member 5 is disposed at a position deviated from the predetermined region S described above. The visibility impeding member 5 is always present inside. That is, the visibility-inhibiting member 5 stays in the observer's line of sight F, which is a factor that impedes visibility.

  In that respect, in this embodiment, as shown in FIG. 1, the visibility hindering member 5 is disposed in the predetermined region S via the holding member 50, so that the field of view is not obstructed and the HMD can be comfortably provided. Can be used.

  By the way, as shown in FIG. 3, the convergence point does not necessarily exist at the position of the front view, and exists even when the object to be viewed is not the front but shifted to the left or right. Therefore, the region S is not necessarily an isosceles triangle in plan view. For example, as shown in FIG. 3, there may be a substantially right-angled triangle having a distance between the left and right eyes E, E as a base and a distance f from the left eye E to a visual target as a height. In this case, the visibility inhibiting member 5 is disposed within the range defined by the angle θ close to the left eye E out of the angle θ that forms a half of the convergence angle, as described above. It is not limited.

  The visibility-inhibiting member 5 is in a region formed by connecting the convergence point set before the display position by the image light Lb and the eyes E and E of the observer, and the half mirror 9. It is also possible to dispose the image light Lb that has passed through the region where the image light Lb reaches, and this can also prevent the visibility-inhibiting member 5 from being an obstacle to the observer's field of view as much as possible.

  Moreover, it is preferable that the visibility inhibiting member 5 is configured to function as a light guide plate. That is, the visibility-inhibiting member 5 has a prescribed light diffusion direction. For example, as shown in FIG. 1, the light diffusion direction can be defined so that the image light Lb that has passed through the half mirror 9 travels inside the visibility-inhibiting member 5 and emits light up to the leading edge. Thereby, for example, the person around the observer M1 can recognize that the observer M1 is actually using the HMD, and in particular, since the edge emits light, the person is located in front of the observer M1. Even those who do it can recognize it. When the visibility-inhibiting member 5 is used as a light-shielding member that functions as a light guide plate and blocks light transmission, a light-shielding seal or the like is attached to the outer surface of the light diffusion member, or a light-shielding paint or the like is used. It may be applied.

  In this embodiment, the half mirror 9 is attached to the image display unit via the half mirror support member 91. However, the half mirror 9 is directly attached to the image display unit 1 without using the half mirror support member 91. There may be. Although the holding member 50 has been described as a separate structure from the half mirror support member 91, the half mirror 9 is visually recognized at the tip of the holding member 50 as a member that can be used as the holding member 50 and the half mirror support member 91. It can also be set as the structure which attaches the sex inhibiting member 5. FIG.

[Other embodiment 1]
Hereinafter, the attachment structure of the visibility impeding member according to another embodiment will be described with reference to FIGS. 4 to 9. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The structure shown in FIG. 4 uses a dual-purpose holding member 8 having a frame structure in which four frames 80 are extended from the four corners of the front end surface of the image display unit 1. 9 and the visibility-inhibiting member 5 can be held by the same member.

  That is, as shown in the figure, the half mirror 9 is attached to the proximal end side of the dual-purpose holding member 8 so that the mounting position can be changed, and the visibility hindering member 5 is disposed on the distal end side of the dual-purpose holding member 8. In the figure, reference numeral 92 denotes a plurality of mirror mounting portions provided at predetermined intervals, and reference numeral 93 denotes a positioning portion that holds the tip of the mirror and defines the arrangement angle of the half mirror 9.

  Further, the visibility impeding member 5 is not inclined perpendicular to the image light Lb from the liquid crystal display device 10 but is inclined at substantially the same angle as the angle θ forming ½ of the convergence angle described above. . Therefore, the length of the dual-purpose holding member 8 can be shortened as much as possible to make it compact. In this manner, it goes without saying that the visibility-inhibiting member 5 being tilted can be applied to the previous embodiment (see FIG. 1).

  In the present embodiment, the visibility inhibiting member 5 is a light diffusing member, and part of the image light Lb leaks from the visibility inhibiting member 5 to the outside world. However, in the diffused state, as shown in the drawing, the content C of the display image is blurred to the other person M2, and thus there is no possibility that the content content is known.

  Furthermore, the light diffusing member can be configured such that the front end edge emits light as described above, or can diffuse light in a desired direction, assuming that the light diffusing direction is defined. Note that when the light diffusion member (visibility inhibition member 5) is inclined as in the present embodiment, the observer M1 actually uses the HMD without defining the light diffusion direction at the end. People around you can also recognize this.

  By the way, the dual-purpose holding member 8 may be composed of only four frames 80 and communicate with the outside world, but the surface formed between the frames 80 and 80 is made of a transparent member such as a transparent film or a transparent plate. Can be formed. With such a configuration, the image display unit 1 and the half mirror 9 and the visibility hindering member 5 can have a dustproof / protective function.

In the present embodiment, the four frames 80 constituting the dual-purpose holding member 8 are extended from the end face of the image display unit 1. However, when the distance between the upper and lower frames 80, 80 is narrow, the view is obstructed. The space between the upper and lower frames 80 and 80 can be appropriately widened by interposing a member fixture.
[Other embodiment 2]
In the structure shown in FIG. 5, the dual-purpose holding member 8 is formed in a solid block shape with a translucent material made of glass, synthetic resin, or the like, instead of the four frames 80. The half mirror 9 and the visibility hindering member 5 are embedded.

  With this configuration, the half mirror 9 and the visibility-inhibiting member 5 can be securely fixed, and even when an impact or the like is applied from the outside, there is no possibility that both of them are displaced. Also in this case, since the dual-purpose holding member 8 is formed of a transparent member, it has a dustproof / protective function for the image display unit 1 and for the half mirror 9 and the visibility hindering member 5. Become.

[Other embodiment 3]
In the structure shown in FIG. 6, the visibility hindering member 5 is held by a locking tool 82 as a holding member, and the locking tool 82 is attached in the vicinity of the center portion of the front portion 15 of the spectacles frame 6.

  That is, in the structure shown in FIGS. 1 to 5, the visibility-inhibiting member 5 is attached to the casing 12 of the image display unit 1 directly or indirectly. However, here, the visibility-inhibiting member 5 is attached to the vicinity of the center portion of the front portion 15 of the eyeglass-type frame 6 via the locking tool 82. In FIG. 6, reference numeral 52 denotes a pivot portion provided on the locking tool 82, and the visibility inhibition member 5 is adjustable in angle by connecting the proximal end of the visibility inhibition member 5 to the pivot portion 52. Can do. Of course, the pivot support portion 52 is not adopted, and the attachment angle of the visibility impeding member 5 may be fixed.

  According to the configuration of the present embodiment, the members for holding the visibility-inhibiting member 5 from the image display unit 1 (for example, the holding member 50, the combined holding member 8 and the like) do not protrude, thereby hindering the view of the observer M1. This can be suppressed as much as possible. In addition, since the weight burden on the image display unit 1 is reduced, design restrictions on the strength of the attachment 7 and the attachment strength between the attachment 7 and the front portion 15 of the spectacle frame 6 are relaxed.

[Other embodiment 4]
Next, in the structure shown in FIG. 7, the base end portion 41 is positioned on the temporal side of the observer M1 so that the member for holding the visibility-inhibiting member 5 does not disturb the view of the observer M1. At the same time, the distal end portion is formed in an arch shape extending so as to pass above the line of sight of the observer M1.

  As shown in FIG. 7A, the arch-type holding member 4 includes a type in which a base end portion 41 is attached to the front portion 15 of the spectacles type frame 6, and a base end portion as shown in FIG. There is a type in which 41 is attached to the casing 12 of the image display unit 1.

  In any type, a connecting portion 42 that forms a base end portion 41 protruding upward, and extends from the connecting portion 42 toward the nose of the observer M1, and the distal end portion 43 has a base end of the visibility inhibiting member 5. It is comprised from the arm part 44 which connected.

  As described above, the use of the arch-type holding member 4 configured to bypass the eye E of the observer M1 can also suppress the obstruction of the observer M1 as much as possible. When the eye E is bypassed by the arm portion 44, it is possible not only to extend the arm portion 44 upward as in the present embodiment, but also to extend downward, but on the functional surface and the design surface. Then, it is desirable to make a detour upward like this embodiment.

[Other embodiment 5]
The structure shown in FIG. 8 is basically the same as the structure shown in FIG. 1 as the structure of the member for holding the visibility inhibiting member 5, and is a half projecting from the tip of the image display unit 1. A holding member 51 is further connected to the tip of the mirror support member 91 and extends toward the right eye.

  In the present embodiment, the liquid crystal display device 10 built in the image display unit 1 is disposed so as to be inclined by a predetermined angle α, and the direction of the image light Lb emitted from the image display unit 1 gradually approaches the face of the observer M1. Thus, the optical axis of the image light Lb is tilted toward the face side.

  With this configuration, as shown in the figure, the holding member 51 can also be disposed so that the tip gradually approaches the face so that the visibility-inhibiting member 5 does not protrude greatly in front of the face. In addition, in this case, the area of the visibility inhibiting member 5 can be further reduced. Further, when the visibility-inhibiting member 5 is a light diffusing member, the light transmitted through the light diffusing member is directed obliquely behind the observer M1, so that the person who is in front of or side of the observer M1 passes through the display image. There is less fear of knowing the content.

  As mentioned above, although this invention has been demonstrated through each embodiment, this invention is not limited to each embodiment, Unless it deviates from the main point of a claim, it combines the structure of embodiment suitably. Alternatively, the shape of each component, the layout of the apparatus, and the like can be changed as appropriate.

  For example, in the embodiment described above, the liquid crystal display type in which the image display unit 1 is provided with the liquid crystal display device 10 is used as the HMD. However, the liquid crystal display device 10 is not necessarily required for carrying out the present invention. For example, an organic EL (Organic Electroluminescence) display device may be used.

  Further, as shown in FIG. 9, an HMD provided in the image display unit 1 may be an optical scanning display device that causes the scanned laser light to enter the eye E of the observer M as image light Lb. In FIG. 9, reference numeral 13 denotes an optical scanning unit, and reference numeral 14 denotes a projection unit provided with a lens or the like.

  By the way, in the example shown in FIG. 9, the same holding member 8 as that in FIG. 4 is used as a member for holding the visibility inhibiting member 5, but here, the visibility inhibiting member 5 is centered on the pivot 55. It is attached so that it can rotate freely. Therefore, for example, when the light diffusion direction of the visibility inhibiting member 5 is defined, the diffusion direction can be arbitrarily changed to a desired direction.

  Further, the image display unit 1 has been described as being configured to be attached to the front portion 15 of the glasses-type frame 6, but the image display unit 1 can also be attached to the temple portion 16 of the glasses-type frame 6.

  In addition, the spectacle-type frame 6 in each of the embodiments described above has been described as a dedicated spectacle-type frame mainly for fixing the visibility-inhibiting member 5, but the attachment 7, the locking tool 82 (see FIG. 5), and the like are appropriately used. It is also possible to use a general spectacle frame by changing.

E Eye La External light Lb Image light M1 Observer θ Angle forming a half of the convergence angle 1 Image display unit 5 Visibility hindering member (light diffusion member, light shielding member)
6 glasses frame (support frame)
8 Combined holding member (holding member)
9 Half mirror 15 Front part 16 Temple part 50 Visibility inhibiting member holding member

Claims (9)

An image display unit for emitting image light;
A half mirror that reflects the image light emitted from the image display unit and projects the image light onto an observer's eye;
A support frame capable of supporting the image display unit on an observer's head,
The support frame is allowed to hold a visibility-inhibiting member that can transmit image light that has passed through the half mirror, and that can reduce the visibility of the transmitted image light from the outside ,
The visibility-inhibiting member between the eye width line connecting the eyes of the observer and at least the line extending from the end on the far side as viewed from the observer in the half mirror to a line extending substantially parallel to the eye width line. A head-mounted display, characterized in that it is disposed within an area defined by a convergence point .   The head mounted display according to claim 1, wherein the visibility inhibiting member is a light diffusing member that diffuses image light transmitted through the half mirror.   The head mounted display according to claim 1, wherein the light diffusion member has a light diffusion direction defined therein.   An image display unit for emitting image light;
  A half mirror that reflects the image light emitted from the image display unit and projects the image light onto an observer's eye;
  A support frame capable of supporting the image display unit on an observer's head,
  The support frame is allowed to hold a visibility-inhibiting member that can transmit image light that has passed through the half mirror, and that can reduce the visibility of the transmitted image light from the outside,
  An eyeglass type comprising a front part disposed in front of the observer's face, and a temple part connected to both right and left ends of the front part for hanging on the observer's ear. The head mounted display is characterized in that the image display unit is attached to any one of the left and right temple portions, and the visibility inhibiting member is disposed in the vicinity of the center portion of the front portion.   The head mounted display according to claim 4, wherein the visibility inhibiting member is held by a holding member, and the holding member is attached in the vicinity of a central portion of the front portion. An image display unit for emitting image light;
A half mirror that reflects the image light emitted from the image display unit and projects the image light onto an observer's eye;
A support frame capable of supporting the image display unit on an observer's head,
The support frame is allowed to hold a visibility-inhibiting member that can transmit image light that has passed through the half mirror, and that can reduce the visibility of the transmitted image light from the outside,
While holding the visibility hindering member on a holding member, connecting the holding member to the image display unit ,
Said holding member, said formed of a transparent member having a dust-protection to the image display unit, wherein the to Ruhe head-mounted display that is mounted to the visibility inhibiting member to the transparent member.   An image display unit for emitting image light;
  A half mirror that reflects the image light emitted from the image display unit and projects the image light onto an observer's eye;
  A support frame capable of supporting the image display unit on an observer's head,
  The support frame is allowed to hold a visibility-inhibiting member that can transmit image light that has passed through the half mirror, and that can reduce the visibility of the transmitted image light from the outside,
  The visibility-inhibiting member is held by a holding member, and the proximal end is positioned on the temporal side of the observer so that the holding member is not obstructed by the observer's field of view. A head-mounted display, which is formed in an arch shape that extends so as to pass above a person's line of sight.   An image display unit for emitting image light;
  A half mirror that reflects the image light emitted from the image display unit and projects the image light onto an observer's eye;
  A support frame capable of supporting the image display unit on an observer's head,
  The support frame is allowed to hold a visibility-inhibiting member that can transmit image light that has passed through the half mirror, and that can reduce the visibility of the transmitted image light from the outside,
  The head-mounted display, wherein the support frame is a dedicated glasses-type frame for fixing the visibility-inhibiting member.   An image display unit for emitting image light;
  A half mirror that reflects the image light emitted from the image display unit and projects the image light onto an observer's eye;
  A support frame capable of supporting the image display unit on an observer's head,
  The support frame is allowed to hold a visibility-inhibiting member that can transmit image light that has passed through the half mirror, and that can reduce the visibility of the transmitted image light from the outside,
  A head-mounted display, wherein the optical axis of the image light is inclined toward the face side so that the direction of the image light emitted from the image display unit gradually approaches the face.

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