JP2017026704A - Display device and spectacle type display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device allowing spectacle lenses to be reduced in thickness, and a spectacle type display device.SOLUTION: A display device comprises: emission sections; and reflection sections. The emission sections emit light including image information. The reflection sections have a plurality of reflection regions to each of which one or more reflection surfaces reflecting at least parts of the light made incident are provided. The light including the image information is made incident to any one reflection region. The plurality of reflection regions possessed by the reflection sections include two or more reflection regions in which at least ones of angles and extending directions of the reflection surfaces are different from one another.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a display device and a glasses-type display device.

  An eyeglass-type display device that is mounted on a user's head and reflects an image displayed on a display unit by a reflecting unit and allows the user to observe the reflected image is a non-transmissive type or a transmissive type. There are two main types. Many conventionally known head mounted displays (HMDs) are classified as non-transmissive types.

  The transmission type is suitable for applications that display auxiliary information without obstructing the wearer's visual field. However, even if it is a transmissive type, displaying information in front of the field of view is problematic in terms of safety, so information is often displayed in the upper right corner of the field of view. Although a certain level of safety can be ensured by displaying in the upper right corner, there is a problem that the movement of the line of sight increases and it is difficult to view information without fatigue for a long time.

  Appropriate information display positions vary depending on usage scenes. For example, in a scene in which it is required to frequently refer to information while performing manual work, it is desirable that the information is displayed at a position where the movement of the line of sight from the hand is as small as possible without blocking the hand.

  Conventional techniques include a display unit for displaying an image, a projection unit for changing the traveling direction of at least part of image light emitted from the display unit, and a guide for guiding the image light from the projection unit to the eyeball of the wearer. A technique for changing the display position by controlling the positional relationship of the optical parts is known.

JP 2013-225042 A

  However, in the above prior art, since it is necessary to embed a single large reflecting plate inside the light guide part constituting the spectacle lens, it is difficult to make the spectacle lens thin.

  The problem to be solved by the present invention is to provide a display device and a spectacle-type display device capable of changing the position of an image observed by an observer while making the spectacle lens thinner.

  The display device of the embodiment includes an emission unit and a reflection unit. The emission unit emits light including image information. The reflection unit has a plurality of reflection regions each provided with one or more reflection surfaces that reflect at least part of incident light. Light including image information enters one of the reflection areas. The plurality of reflection regions of the reflection unit include two or more reflection regions in which at least one of the angle of the reflection surface and the extending direction is different from each other.

The figure which shows the structure of the spectacles type display apparatus of embodiment. The figure which shows the reflective surface of each reflective area | region of embodiment. The typical top view of the reflective part of an embodiment. The figure which shows an example of the hardware constitutions of the circuit part of embodiment. The figure which shows an example of the relative position of the projection unit of embodiment, and a reflection part. The figure which shows an example of the relative position of the projection unit of embodiment, and a reflection part. The figure which shows the reflective surface of each reflective area | region of embodiment. The figure for demonstrating the structure of the position control mechanism of the modification 2. FIG. The figure for demonstrating the structure of the position control mechanism of the modification 2. FIG. The figure for demonstrating the structure of the position control mechanism of the modification 3. FIG. The figure for demonstrating the structure of the position control mechanism of the modification 3. FIG. The figure which shows the reflective surface of each reflective area | region of the modification 3. The figure for demonstrating the structure of the position control mechanism of the modification 4. FIG. The figure for demonstrating the structure of the position control mechanism of the modification 4. FIG. The figure for demonstrating the structure of the position control mechanism of the modification 5. FIG. The figure for demonstrating the structure of the position control mechanism of the modification 6. FIG.

  Hereinafter, embodiments of a display device and a glasses-type display device will be described with reference to the accompanying drawings. The drawings are schematic or conceptual, and the relationship between the thickness and width of each part, the size ratio between the parts, and the like are not necessarily the same as actual ones. Further, even when the same part is represented, the dimensions and ratios may be represented differently depending on the drawings. In the following embodiments, the same reference numerals are assigned to the same elements, and overlapping descriptions are omitted as appropriate.

  FIG. 1 is a diagram illustrating an example of the configuration of a glasses-type display device 1 according to the present embodiment. In the example of FIG. 1, the eyeglass-type display device 1 is a binocular head mounted display (HMD) using two display devices 100, but is not limited to this, for example, a monocular HMD using one display device 100. There may be.

  In the example of FIG. 1, two display devices 100 and two eyeglass lenses 160 corresponding to the two display devices 100 on a one-to-one basis are held by a holding unit 320. In the example of FIG. 1, the holding unit 320 serves as a spectacle frame and further includes a nose pad 321 and a bridge 322. The bridge 322 connects one spectacle lens 160 and the other spectacle lens 160. A rim of the spectacle lens 160 (a frame for holding the spectacle lens 160) or the like may be provided as necessary. In the present embodiment, the spectacle lens 160 for the right eye and the spectacle lens 160 for the left eye are separately provided. However, the present invention is not limited to this. For example, the spectacle lens 160 for the right eye and the spectacle lens for the left eye are provided. The spectacle lens 160 may be integrally formed. The spectacle lens 160 is made of a light transmissive material.

  In FIG. 1, the direction in which the two spectacle lenses 160 are arranged is defined as the X-axis direction. One direction perpendicular to the X-axis direction is taken as a Y-axis direction. A direction perpendicular to each of the X-axis direction and the Y-axis direction is taken as a Z-axis direction. In the example of FIG. 1, the X-axis direction corresponds to the left-right direction (horizontal direction) of the observer 80, the Y-axis direction corresponds to the up-down direction (vertical direction) of the observer 80, and the Z-axis direction corresponds to the observer 80. Corresponds to the front-rear direction (depth direction).

  Next, the configuration of the display device 100 will be described. In the following description, the configuration will be described focusing on one of the two display devices 100, but the other configuration can be considered similarly.

  The display device 100 includes a projection unit 125, a reflection unit 130, and a circuit unit 140, and is held by a holding unit 320. The projection unit 125 includes a display unit 110 and an optical unit 120.

  The circuit unit 140 is a circuit that performs various controls. The hardware configuration of the circuit unit 140 will be described later. The circuit unit 140 acquires image information from the outside connected by wire or wireless, for example, and sends the acquired image information to the display unit 110. In the example of FIG. 1, the circuit unit 140 is electrically connected to the display unit 110 via a bendable cable 145. However, the circuit unit 140 is not limited thereto, and for example, the circuit unit 140 and the display unit 110 are connected wirelessly. It may be a form.

  The display unit 110 displays an image according to the image information acquired from the circuit unit 140. The display unit 110 is a display that displays an image, and includes a plurality of pixels 110e. The plurality of pixels 110e are provided side by side on a plane (for example, in a matrix). The display unit 110 emits light L1 including image information. The light L1 including image information is emitted toward the optical unit 120. The format of the display is arbitrary, and for example, a display using liquid crystal, organic EL, liquid crystal on silicon, or the like can be used. However, the embodiment is not limited to these.

  The optical unit 120 changes the traveling direction of at least a part of the light L1 including the image information emitted from the display unit 110. In the example of FIG. 1, the optical unit 120 is provided between the display unit 110 and the reflection unit 130 on the optical path of the light L <b> 1 emitted from the plurality of pixels 110 e of the display unit 110. The optical unit 120 includes at least one or more optical elements. As the optical element, a lens, a prism, a mirror, or the like can be used. In this way, the light L1 emitted from the projection unit 125 enters the reflection unit 130. When a plurality of optical elements are used, they do not have to be arranged on a straight line. The projection unit 125 is an example of an “emission unit” that emits light L1 including image information.

  The reflection unit 130 has a plurality of reflection regions each provided with one or more reflection surfaces that reflect at least part of incident light. In the present embodiment, the positional relationship between the projection unit 125 and the reflection unit 130 is set (variably set) so that the light L1 including image information is incident on any one of the reflection regions.

  For example, the reflecting unit 130 reflects at least a part of the light incident from the optical unit 120 toward the pupil 150 of the wearer (observer) 80 of the glasses-type display device 1. The light reflected by the reflecting unit 130 forms an image as a virtual image when viewed from the pupil 150. In this way, the observer can see the image.

  In this example, the relative arrangement of the display unit 110 and the optical unit 120 is fixed in the projection unit 125. Note that the relative arrangement of the display unit 110 and the optical unit 120 may be variable so as not to impair the function of projecting (emitting) the light L1 including image information toward the reflecting unit 130. For example, the display unit 110 and the optical unit 120 are attached with a fastening member such as a screw in the projection unit 125, and the relative distance between the display unit 110 and the optical unit 120 is adjusted by adjusting the tightening degree of the screw. Or the structure which can adjust the angle | corner which mutually makes may be sufficient. By adjusting the distance between the display unit 110 and the optical unit 120, the distance from the observer 80 to the virtual image seen can be changed. For example, an image that was visible 1 m ahead of the face can be moved 2 m away.

  The reflection unit 130 is, for example, a combiner, and transmits a part of light incident on the reflection unit 130 from the outside. Thereby, the observer 80 can observe the outside world through the reflection unit 130. A plurality of reflective areas are provided on the first surface 11p that is a surface (which may be a flat surface or a curved surface) on the viewer 80 side of the reflector 130, and a plurality of fine reflective surfaces are provided for each of the plurality of reflective areas. It is provided along one surface 11p. However, the present invention is not limited to this. For example, one reflection surface may be provided along the first surface 11p for each of the plurality of reflection regions. In short, the reflection unit 130 may have a form having a plurality of reflection regions each provided with one or more reflection surfaces that reflect at least part of incident light. In the present embodiment, at least one of the angle of the reflecting surface and the extending direction is different for each reflecting region.

  Each reflecting surface is a half mirror, for example, and reflects at least a part of incident light. As shown in FIG. 2, each of the reflection surfaces is inclined with respect to the first surface 11p, and the reflection surfaces are continuously formed through a step having a length h. The angle formed by the reflecting surface and the first surface 11p (the angle of the reflecting surface) is determined by the positional relationship between the optical axis of the optical unit 120 and the assumed pupil 150. Thereby, for example, the reflection angle of light can be adjusted.

  In the example of FIG. 2, the angle of the reflection surface is different for each reflection region. In FIG. 2, the reflection region X1 and the reflection region X2 adjacent in the X-axis direction are illustrated, and the pitch of the reflection surface provided in the reflection region X1 is “P1”, and the pitch of the reflection surface provided in the reflection region X2 Is “P2”. The lengths of the steps of the reflecting surface provided in the reflecting region X1 and the steps of the reflecting surface provided in the reflecting region X2 are equal and both are “h”. Therefore, the angle of each reflection surface provided in the reflection region X1 is arctan (h / P1), and the angle of each reflection surface provided in the reflection region X2 is arctan (h / P2).

  In this example, the length of each of the steps of the reflection surface provided in the reflection region X1 and the step of the reflection surface provided in the reflection region X2 is equal, but not limited to this, for example, in the reflection region X1 The lengths of the steps of the reflection surface provided and the lengths of the steps of the reflection surface provided in the reflection region X2 are different from each other, the pitch of the reflection surface provided in the reflection region X1 and the length of the reflection surface provided in the reflection region X2. Further, the lengths of the pitches of the reflecting surfaces may be equal. In short, it is sufficient that the angle of the reflection surface is different for each reflection region.

  In the example of FIG. 2, the extending direction of the reflecting surface provided in the reflecting region X1 and the extending direction of the reflecting surface provided in the reflecting region X2 are the same direction. The extending direction of the reflecting surface is the longitudinal direction of the reflecting surface. In the example of FIG. 2, the angle formed between the longitudinal direction (extending direction) of each reflecting surface and the Y axis is 0 degree (the extending direction of each reflecting surface). And the Y axis are parallel to each other).

  The reflection unit 130 has a Fresnel shape formed by a plurality of reflection surfaces and a plurality of steps, but is not limited to this, and may be any form that can adjust the reflection angle in the same manner. Further, in this example, an example is described in which a half mirror having the same reflectance and transmittance is applied as the reflecting surface. However, the present invention is not limited to this, and the reflectance and the transmittance may not be the same. Good. In short, the material used for the reflecting surface may be any material as long as it is a material that transmits part of light and reflects part of light.

  FIG. 3 is a schematic plan view when the reflecting unit 130 is viewed from the direction of the pupil 150. As shown in FIG. 3, the reflection unit 130 is provided with a plurality of reflection regions. For example, in FIG. 3A, four reflection areas A, B, C, and D are provided. Further, for example, in FIG. 3B, five reflection regions E, F, G, H, and I are provided. Further, for example, in FIG. 3C, three reflective regions J, K, and L are provided. The size and shape of each reflection region are arbitrary. In the example of FIG. 3, the shape of the reflection region is a rectangle (rectangle or square), but is not limited thereto, and may be, for example, a circle or an ellipse. Moreover, each reflective area | region may be connected and arrange | positioned separately. However, each reflection area shall be provided (arranged) so as not to overlap each other.

  The angle and the extending direction of the reflection surface are determined by the relative positional relationship between the region to which the reflection surface belongs in the reflection unit 130, the projection unit 125, and the pupil 150. In the example of FIG. 2, the angle of the reflecting surface is different for each reflecting region, but the extending direction of the reflecting surface is the same between the reflecting regions, but not limited to this, for example, both the reflecting surface angle and the extending direction are reflected. For example, the extension direction of the reflection surface may be different for each reflection region, while the angle of the reflection surface may be the same between the reflection regions. However, the present invention is not limited thereto, and for example, the plurality of reflection regions included in the reflection unit 130 may include two or more reflection regions in which both the angle of the reflection surface and the extending direction are the same. In short, the plurality of reflection regions included in the reflection unit 130 may include two or more reflection regions in which at least one of the angle of the reflection surface and the extending direction is different from each other.

  In the example of FIG. 1, the reflection unit 130 is provided inside the spectacle lens 160, but the present invention is not limited to this, and the position of the reflection unit 130 is arbitrary. For example, the reflection unit 130 may be attached to the outside of the spectacle lens 160.

  As shown in FIG. 1, the eyeglass-type display device 1 of the present embodiment has a position control mechanism 126 that changes the positional relationship (relative position) between the projection unit 125 and the reflecting unit 130 according to the operation of the observer 80. Is further provided. The position control mechanism 126 is a mechanism that translates or rotates the projection unit 125 so that the reflection region into which the light L1 including image information is incident is switched. More specific contents will be described later. In this example, the projection unit 125 is held by the holding unit 320 via the position control mechanism 126.

  When using the glasses-type display device 1, the observer 80 places the nose pad 321 on the nose and places one end 320 e of the holding unit 320 on the ear. In this manner, the position of the holding unit 320 and the relative position of the spectacle lens 160 (and the reflecting unit 130) are defined according to the position of the nose and ear of the observer 80. When the glasses-type display device 1 is used, the relative arrangement of the reflection unit 130 with respect to the holding unit 320 is substantially fixed. In addition, the position of the pupil 150 relative to the reflecting unit 130 moves with eye movement, but the pupil position when viewing an image (virtual image) satisfies a relationship within a certain range. This range is called an eye range and is a circular region having a diameter of about several mm.

  FIG. 4 is a diagram illustrating an example of a hardware configuration of the circuit unit 140. As illustrated in FIG. 4, the circuit unit 140 includes at least a processing circuit (processor) 141, a memory 142, and an interface 143.

  The processing circuit 141 comprehensively controls the operation of the circuit unit 140. The memory 142 stores various data such as the program 144. The program 144 may be provided in a state stored in the memory 142 in advance, or may be provided via a non-volatile recording medium such as a CD-ROM or a network, and may be installed as appropriate. The interface 143 is an interface for connecting to the outside (device, storage medium, network, etc.). The connection method with the outside is arbitrary, and may be wired connection or wireless connection.

  An integrated circuit such as an LSI (Large Scale Integration) or an IC (Integrated Circuit) chip set can be used for a part or all of each block of the circuit unit 140. An individual circuit may be used for each block, or a circuit in which part or all of the blocks are integrated may be used. Each block may be provided integrally, or a part of the blocks may be provided separately. In addition, a part of each block may be provided separately. The integration is not limited to LSI, and a dedicated circuit or a general-purpose processor may be used.

  Next, how the relative positions of the projection unit 125 and the reflection unit 130 in the present embodiment are changed will be described with reference to FIGS. For the sake of convenience of explanation, here, the case where the reflection unit 130 is provided with two reflection regions A and B adjacent in the horizontal direction (X-axis direction) will be described as an example, but the present invention is not limited thereto. . In the example of FIGS. 5 and 6, the relative position between the projection unit 125 and the reflection unit 130 is variable by the position control mechanism 126.

  In this example, the position control mechanism 126 includes a long hole 171 extending along the X-axis direction (the left-right direction of the observer 80), and a movable shaft 172 fixed to the projection unit 125 and inserted into the long hole 171. Have The movable shaft 172 can move in the long hole 171. Thereby, the position of the projection unit 125 in the X-axis direction (the left-right direction of the observer 80) can be variably set.

  FIG. 5 shows a state where the movable shaft 172 is moved to the left side in the long hole 171, and FIG. 6 shows a state where the movable shaft 172 is moved to the right side in the long hole 171. In FIG. 5, the light L1 including the image information from the projection unit 125 is projected onto the reflection area A provided in the reflection unit 130, and the light L1 including the projected image information is transmitted from the reflection area A to the pupil 150. As a result of the reflection, the image is displayed at a position shifted leftward from the front of the pupil 150. On the other hand, in FIG. 6, the light L1 including the image information from the projection unit 125 is projected onto the reflection area B provided in the reflection unit 130, and the light L1 including the projected image information is transmitted from the reflection area B to the pupil. As a result of being reflected toward 150, an image is displayed at a position shifted rightward from the front of the pupil 150.

  5 and 6, the angle at which the light emitted from the projection unit 125 (light L1 including image information) enters the reflecting unit 130 is the same, but the angle at which the light is reflected by the reflecting unit 130 is different. In the present embodiment, as shown in FIG. 7, the reflection angle is changed by changing the angle of the reflection surface in the reflection area A and the reflection area B adjacent to each other in the X-axis direction (lateral direction). For example, in the reflective region A, the light is reflected in a direction shifted to the right side from the normal direction of the reflective portion 130 by arranging the reflective surfaces at an angle as shown in FIG. On the other hand, in the reflective region B, as shown in FIG. 7B, the reflective surfaces are arranged at an angle closer to the horizontal than in FIG. The light is reflected in the direction deviated.

  As described above, in the present embodiment, the position of the projection unit 125 is moved in the left-right direction (X-axis direction) of the observer 80, and the light L1 including the image information is provided in a plurality of reflection regions provided in the reflection unit 130. Are projected onto one of the reflection areas. Since the angle of the light reflected toward the pupil 150 can be changed by changing the angle of the reflection surface for each of the plurality of reflection regions, an image is displayed at a position shifted in the left-right direction from the front of the observer 80. can do.

  Further, as described above, the position control mechanism 126 changes the positional relationship between the projection unit 125 and the reflection unit 130 so that the reflection region into which the light L1 including the image information is incident is switched according to the operation of the observer 80. Change. As an example, the position control mechanism 126 includes a scale A corresponding to the reflection area A and a scale B corresponding to the reflection area B, and includes a dial operation unit (not shown) that can change the indicated position in accordance with the rotation operation. You may have. For example, when the observer 80 rotates the dial operation unit to set the indicated position to the scale A, the movable shaft 172 moves to the position shown in FIG. 5, while the observer 80 rotates the dial operation part to set the indicated position to the scale B. The movable shaft 172 may be moved to the position shown in FIG. Each time the operation by the observer 80 is performed, the position control mechanism 126 outputs information indicating the current designated position (that is, corresponding to information indicating the relative position between the current projection unit 125 and the reflecting unit 130) to a circuit. Can be notified to the unit 140. For example, the circuit unit 140 can perform processing for correcting image information by using information notified from the position control mechanism 126.

  As described above, in the present embodiment, the reflection unit 130 having a plurality of reflection regions each provided with one or more reflection surfaces is provided instead of one large reflection plate. Then, the positional relationship between the projection unit 125 and the reflecting unit 130 is variably set so that light including image information is incident on any one of the reflection areas, and the angle of the reflection surface is made different for each of the plurality of reflection areas. Thus, it is possible to change the position of the image observed by the observer 80 while suppressing the thickness of the reflecting portion 130 (that is, the thickness of the spectacle lens 160).

  As mentioned above, although embodiment of this invention was described, the above-mentioned embodiment was shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These novel embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  Hereinafter, modified examples will be described. A description of portions common to the above-described embodiment will be omitted as appropriate.

(Modification 1)
For example, the circuit unit 140 has a function (position control unit) that automatically controls the positional relationship between the projection unit 125 and the reflection unit 130 so that a reflection region into which light including image information is incident is switched. Also good. For example, the circuit unit 140 switches the reflection region into which light including image information is incident according to the relative position between the pupil 150 and the reflection unit 130 of the observer 80 (an image is displayed at an optimal position). The position control mechanism 126 may be controlled.

(Modification 2)
For example, the position control mechanism 126 may have the configuration shown in FIGS. In this example, the position control mechanism 126 has a rotation shaft portion 54 that holds the projection unit 125, and can rotate the projection unit 125 around the rotation shaft portion 54. 8 and 9, the projection unit 125 can be rotated in the XZ plane.

  8 shows a state where the incident angle of light L1 including image information with respect to the reflecting unit 130 (light emitted from the projection unit 125) is large, and FIG. 9 shows the incident angle of light L1 including image information with respect to the reflecting unit 130. Indicates a small state.

  In FIG. 8, the light L <b> 1 including the image information from the projection unit 125 is projected onto the reflection area A provided in the reflection unit 130, and the light L <b> 1 including the projected image information is projected from the reflection area A to the pupil 150. As a result of the reflection, the image is displayed at a position shifted leftward from the front of the pupil 150. On the other hand, in FIG. 9, the light L1 including the image information from the projection unit 125 is projected onto the reflection area B provided in the reflection unit 130, and the light L1 including the projected image information is projected from the reflection area B to the pupil. As a result of being reflected toward 150, an image is displayed at a position shifted rightward from the front of the pupil 150.

  In the present modification, the projection unit 125 is rotated to project the light L1 including image information onto any one of the reflection areas provided in the reflection unit 130. As described above, since the angle of the light reflected toward the pupil 150 can be changed by changing the angle of the reflection surface for each of the plurality of reflection regions, the angle is shifted from the front of the observer 80 in the left-right direction. An image can be displayed at the position.

(Modification 3)
10 and 11 are side views of the observer 80 viewed from the lateral direction. For convenience of explanation, here, a case will be described in which the reflective portion 130 is provided with two reflective regions B and D that are adjacent in the vertical direction (Y-axis direction in this example). However, the present invention is not limited to this. It is not a thing.

  In this example, the position control mechanism 126 includes a long hole 33 that extends along the Y-axis direction (the vertical direction of the observer 80), and a movable shaft 53 that is fixed to the projection unit 125 and inserted into the long hole 33. Have The movable shaft 53 can move in the long hole 33. Thereby, the position of the projection unit 125 in the Y-axis direction (vertical direction of the observer 80) can be variably set.

  FIG. 10 shows a state where the movable shaft 53 is moved upward in the long hole 33, and FIG. 11 shows a state where the movable shaft 53 is moved downward in the long hole 33. In FIG. 10, the light L <b> 1 including the image information from the projection unit 125 is projected onto the reflection region B provided in the reflection unit 130, and the light L <b> 1 including the projected image information is projected from the reflection region B to the pupil 150. As a result, the image is displayed at a position shifted upward from the front of the pupil 150. On the other hand, in FIG. 11, the light L1 including the image information from the projection unit 125 is projected onto the reflection area D provided in the reflection unit 130, and the light L1 including the projected image information is projected from the reflection area D to the pupil. As a result of being reflected toward 150, an image is displayed at a position shifted downward from the front of the pupil 150.

  10 and 11, the angle at which the light emitted from the projection unit 125 (light L1 including image information) enters the reflecting unit 130 is the same, but the angle at which the light is reflected by the reflecting unit 130 is different. In this modification, the angle of the reflecting surface is the same and the extending direction of the reflecting surface is different for each reflecting region adjacent in the vertical direction (Y-axis direction in this example). More specifically, as shown in FIG. 12, in the region B and the region D, the angle of reflection is changed by changing the extending direction of the reflecting surface. For example, in the reflection region B, by extending the reflection surface by tilting in the direction as shown in FIG. 12A, the direction shifted downward from the normal direction of the reflection unit 130 (relative to the normal direction). The light is reflected in a direction inclined downward. On the other hand, in the reflective region D, the reflective surface is extended in a direction inclined as shown in FIG. 12B, whereby the direction shifted upward from the normal direction of the reflective portion 130 (above the normal direction). The light is reflected in the direction inclined to

  As described above, in this modification, the position of the projection unit 125 is moved in the vertical direction (Y-axis direction) of the observer 80, and the light L1 including the image information is provided in the plurality of reflection regions provided in the reflection unit 130. Are projected onto one of the reflection areas. By varying the extending direction of the reflecting surface for each of the plurality of reflecting regions, the angle of the light reflected toward the pupil 150 can be changed, so that the image is shifted in the vertical direction from the front of the observer 80. Can be displayed.

(Modification 4)
Further, for example, in the above-described modification 3, the position control mechanism 126 may have the configuration shown in FIGS. 13 and 14. In this example, the position control mechanism 126 has a rotation shaft portion 55 that holds the projection unit 125, and can rotate the projection unit 125 around the rotation shaft portion 55. In the examples of FIGS. 13 and 14, the projection unit 125 can be rotated in the YZ plane.

  In FIG. 13, the light L <b> 1 including the image information from the projection unit 125 is projected onto the reflection region B provided in the reflection unit 130, and the light L <b> 1 including the projected image information is projected from the reflection region B to the pupil 150. As a result, the image is displayed at a position shifted upward from the front of the pupil 150. On the other hand, in FIG. 14, the light L1 including the image information from the projection unit 125 is projected onto the reflection area D provided in the reflection unit 130, and the light L1 including the projected image information is projected from the reflection area D to the pupil. As a result of being reflected toward 150, an image is displayed at a position shifted downward from the front of the pupil 150.

(Modification 5)
For example, as shown in FIG. 15, the projection unit 125 may be provided with an attachment portion 55 having a shape of a part of a sphere. In the example of FIG. 15, the attachment portion 55 is provided with a protrusion 36 whose force is urged in the direction of protruding from the surface of the attachment portion 55 by an elastic material such as a spring. The position control mechanism 126 is provided with an opening 35. The opening 35 is formed with a plurality of grooves 37 that correspond one-to-one with the plurality of reflection regions and can be fitted to the protrusions 36. In this example, when the projection 36 fits into any of the grooves 37, the light emitted from the projection unit 125 is incident on the reflection region corresponding to the groove 37 so that the projection unit 125 and the reflection unit 130 at that time are incident. The relative position is defined. Further, in this example, when the observer 80 presses a button (not shown), the tip of the protrusion 36 is retracted to the surface of the mounting portion 55, so that the protrusion 36 is fitted in any one of the grooves 37. The observer 80 can perform an operation of releasing the button and rotating the mounting portion 55 after pressing the button to move the protrusion 36 from the groove 37. When the protrusion 36 moves to the position of another groove 37, the protrusion 36 protruding by the biasing force fits into the groove 37 and is fixed.

  According to this modification, the projection unit 125 can be rotated in the up-down direction and the left-right direction, and the direction in which the image can be seen can be adjusted.

(Modification 6)
For example, as shown in FIG. 16, the position control mechanism 126 is a combination of a rotation mechanism in the XZ plane and a position adjustment mechanism in the left-right direction (combining the above-described embodiment and the above-described modification 2). Form). Similarly, the position control mechanism 126 is a combination of a rotation mechanism in the YZ plane and a position adjustment mechanism in the vertical direction (a combination of the above-described modification 3 and the above-described modification 4). May be.

(Modification 7)
For example, the luminance value of a part of the image information is set to be equal to or less than a threshold value (typically luminance corresponding to “black”) so that the light L1 including the image information emitted by the projection unit 125 does not straddle a plurality of reflection regions. The value may be set to a value.

(Modification 8)
For example, for each of a plurality of reflection regions provided in the reflection unit 130, an optical unit 120 specialized for projecting light L1 including image information onto the reflection region is prepared, and these are used by attaching and detaching them. It may be a form to do. In short, the projection unit 125 emits the display unit 110 that displays an image according to the image information and the display unit 110 so that light including the image information emitted from the display unit 110 is incident on any one of the reflection regions. It may be a form including the optical unit 120 that changes the traveling direction of at least a part of the light including the image information.

  In addition, each above embodiment and each modification can be combined arbitrarily.

DESCRIPTION OF SYMBOLS 1 Glasses type display apparatus 53 Rotating shaft part 54 Rotating shaft part 55 Rotating shaft part 80 Viewer 100 Display apparatus 110 Display part 120 Optical part 125 Projection unit 126 Position control mechanism 130 Reflection part 140 Circuit part 150 Pupil 160 Eyeglass lens 171 Long hole 172 Movable shaft 320 holding part

Claims (10)

An emission part for emitting light including image information;
A reflecting portion having a plurality of reflecting regions each provided with one or more reflecting surfaces for reflecting at least a part of incident light;
The light containing the image information is incident on any one of the reflection regions,
The plurality of reflection regions of the reflection unit include two or more reflection regions in which at least one of the angle of the reflection surface and the extending direction is different from each other.
Display device. A position control mechanism that changes a positional relationship between the emitting unit and the reflecting unit so that the reflecting region into which the light including the image information is incident is switched according to an operation of an observer;
The display device according to claim 1. The position control mechanism is a mechanism that translates or rotates the emission unit so that the reflection region into which light including the image information is incident is switched.
The display device according to claim 2. A position control unit that controls a positional relationship between the emission unit and the reflection unit so that the reflection region into which the light including the image information is incident is switched;
The display device according to claim 1. Each of the reflection regions is provided so as not to overlap each other.
The display device according to claim 1. The angle of the reflective surface is the same for each reflective region adjacent in the vertical direction, and the extending direction of the reflective surface is different.
The display device according to claim 1. The extending direction of the reflecting surface is the longitudinal direction of the reflecting surface.
The display device according to claim 1. The luminance value of a part of the image information is set to a threshold value or less so that the light including the image information emitted by the emitting unit does not straddle the plurality of reflection regions.
The display device according to claim 1. The emitting part is
A display unit for displaying an image according to the image information;
An optical that changes the traveling direction of at least a part of the light including the image information emitted from the display unit so that the light including the image information emitted from the display unit is incident on any one of the reflection regions. Including
The display device according to claim 1. A glasses-type display device that can be worn on a user's head,
An emission part for emitting light including image information;
A reflecting portion having a plurality of reflecting regions each provided with one or more reflecting surfaces for reflecting at least part of incident light;
A holding portion for holding the emitting portion and the reflecting portion,
The light containing the image information is incident on any one of the reflection regions,
The plurality of reflection regions of the reflection unit include two or more reflection regions in which at least one of the angle of the reflection surface and the extending direction is different from each other.
Glasses type display device.

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