AR glasses

Abstract

We provide highly convenient AR glasses. [Solution] Generally, according to the embodiment, the AR glasses include a first frame holding a pair of first lenses, a pair of temples connected to the first frame and extending in one direction, a light source built into the first frame and emitting image light to display an image toward the pair of first lenses, a pair of second lenses facing the pair of first lenses, a second frame holding the pair of second lenses, and a cover detachably attached to the first frame, wherein the light transmittance of the pair of second lenses is lower than the light transmittance of the pair of first lenses.

Description

Technical Field

[0001] Embodiments of the present invention relate to AR glasses.

Background Art

[0002] In recent years, AR (Augmented Reality) glasses, which are glasses-type devices using AR technology, have been put into practical use. Such AR glasses are required to have high convenience.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The problem to be solved by the embodiments of the present invention is to provide AR glasses with high convenience.

Means for Solving the Problems

[0005] Generally, according to an embodiment, an AR glass includes a first frame that holds a pair of first lenses, a pair of temples connected to the first frame and extending in one direction, a light source built in the first frame that emits image light for displaying an image toward the pair of first lenses, a pair of second lenses facing the pair of first lenses, and a second frame that holds the pair of second lenses, and includes a cover detachably attached to the first frame, and a light transmittance of the pair of second lenses is lower than a light transmittance of the pair of first lenses.

Effects of the Invention

[0006] According to the present invention, it is possible to provide AR glasses with high convenience.

Brief Description of the Drawings

[0007] [Figure 1] Figure 1 is a schematic perspective view of AR glasses according to the first embodiment. [Figure 2] Figure 2 is a schematic top view of the AR glasses according to the first embodiment. [Figure 3] Figure 3 is a schematic side view of the AR glasses according to the first embodiment. [Figure 4] Figure 4 is a schematic rear view of the AR glasses according to the first embodiment. [Figure 5] Figure 5 is a schematic perspective view of the AR glasses according to the first embodiment, with the cover attached to the main body. [Figure 6] Figure 6 is a schematic cross-sectional view of AR glasses along the line VI-VI in Figure 2. [Figure 7] Figure 7 is a magnified perspective view of the tip cell and cushion. [Figure 8] Figure 8 is an enlarged top view of the front cell and cushion. [Figure 9] Figure 9 is a schematic perspective view of the nose pad. [Figure 10] Figure 10 is a schematic cross-sectional view of AR glasses along line XX in Figure 2. [Figure 11] Figure 11 is a magnified plan view of a portion of the temple hinge. [Figure 12] Figure 12 is a magnified plan view of a portion of the armor frame. [Figure 13] Figure 13 is a plan view showing the armor and temples joined together. [Figure 14] Figure 14 is a plan view showing the armor and temples joined together. [Figure 15] Figure 15 is a plan view showing the armor and temples joined together. [Figure 16] Figure 16 is a magnified top view of the area around the chip. [Figure 17A] Figure 17A is a block diagram showing an example of the configuration of AR glasses. [Figure 17B]FIG. 17B is a flowchart showing an example of the procedure of the function of the AR glasses. [Figure 17C] FIG. 17C is a flowchart showing another example of the procedure of the function of the AR glasses. [Figure 18] FIG. 18 is a block diagram showing another example of the configuration of the AR glasses. [Figure 19] FIG. 19 is a diagram showing the state when the AR glasses are used. [Figure 20] FIG. 20 is a schematic perspective view of the AR glasses according to the second embodiment. [Figure 21] FIG. 21 is a schematic perspective view of the AR glasses according to the second embodiment in a state where the cover is attached to the main body portion.

MODE FOR CARRYING OUT THE INVENTION

[0008] Hereinafter, the AR glasses according to each embodiment will be described with reference to the drawings. In the drawings, for ease of understanding as necessary, the X-axis, Y-axis, and Z-axis orthogonal to each other are shown. The direction along the X-axis is referred to as the X direction, the direction along the Y-axis is referred to as the Y direction, and the direction along the Z-axis is referred to as the Z direction. Further, viewing various elements parallel to the Z direction is referred to as a plan view, and viewing various elements in the Y-Z plane defined by the Y direction and the Z direction is referred to as a cross-sectional view.

[0009] [First Embodiment] FIG. 1 is a schematic perspective view of the AR glasses 1 according to the first embodiment. FIG. 2 is a schematic top view of the AR glasses 1 according to the first embodiment. FIG. 3 is a schematic side view of the AR glasses 1 according to the first embodiment. FIG. 4 is a schematic rear view of the AR glasses 1 according to the first embodiment.

[0010] The AR glasses 1 include a main body portion 2 and a cover 100 that is detachable from the main body portion 2. FIGS. 1 to 4 show the AR glasses 1 in a state where the cover 100 is removed from the main body portion 2.

[0011] As shown in Figures 1 to 4, the main body 2 comprises a frame 10 (first frame), lenses 20R, 20L (first lenses), endpieces 30R, 30L, temples 40R, 40L, tippets 50R, 50L, cushions 60R, 60L, and nose pads 70.

[0012] The frame 10 has rims 11R and 11L (first rims) and a bridge 12 (first bridge). The rims 11R and 11L are aligned along the X direction. The rims 11R and 11L have an annular shape and hold the lenses 20R and 20L respectively. In one example, the lenses 20R and 20L are fixed to the rims 11R and 11L by fitting grooves provided in the rims 11R and 11L with the lenses 20R and 20L.

[0013] The bridge 12 connects the rims 11R and 11L. In one example, the rims 11R and 11L and the bridge 12 are integrally formed. The nose pads 70 are attached to the bridge 12. Details of the nose pads 70 will be described later.

[0014] The frame 10 includes an inner surface S1 and an outer surface S2 opposite to the inner surface S1. The inner surface S1 corresponds to the surface facing the user when the user wears the AR glasses 1. The outer surface S2 corresponds to the surface located on the opposite side from the user when the user wears the AR glasses 1.

[0015] The illuminance sensor IS and cameras CM1, CM2R, and CM2L are mounted on the outer surface S2 of the frame 10. The illuminance sensor IS and camera CM1 are mounted on the bridge 12. Cameras CM2R and CM2L are mounted on both sides of the frame 10. Specifically, camera CM2R is mounted on the rim 11R, and camera CM2L is mounted on the rim 11L. The rim 11R has a groove 13R surrounding camera CM2R. The rim 11L has a groove 13L surrounding camera CM2L. The grooves 13R and 13L are located on the outer surface S2.

[0016] Camera CM1 corresponds to a color camera that captures color images, for example. Camera CM1 is used for purposes such as photography and image recognition. Cameras CM2R and CM2L correspond to monochrome cameras that capture black and white images, for example. Cameras CM2R and CM2L recognize the user's hand movements, for example. Functions pre-set on the AR glasses 1 are activated in response to these hand movements. Note that cameras other than cameras CM1, CM2R, and CM2L may be attached to the main unit 2. Cameras CM1, CM2R, and CM2L include image sensors, cover lenses, etc.

[0017] The armor pieces 30R and 30L are connected to the ends of the frame 10. Armor piece 30R has a frame 31R and a cover 32R. Armor piece 30L has a frame 31L and a cover 32L. Frames 31R and 31L extend in the Y direction and are connected to rims 11R and 11L, respectively. Covers 32R and 32L are attached to frames 31R and 31L, respectively. In one example, frames 31R, 31L and frame 10 are integrally formed.

[0018] Temple 40R has a frame 41R and a hinge 42R. Temple 40L has a frame 41L and a hinge 42L. Frames 41R and 41L extend in the Y direction, respectively. Hinge 42R connects frame 41R to frame 31R of endpiece 30R. Hinge 42L connects frame 41L to frame 31L of endpiece 30L. Hinges 42R and 42L support frames 41R and 41L so that they can rotate around an axis along the Z direction. By rotating frames 41R and 41L, respectively, temples 40R and 40L can be folded.

[0019] The temple tips 50R and 50L are the parts that rest on the user's ears when the user wears the AR glasses 1. Temple tip 50R is connected to the frame 41R of the temple 40R. Temple tip 50L is connected to the frame 41L of the temple 40L. Temple tips 50R and 50L are curved to conform to the shape of the user's head. Note that the frame 41R and temple tip 50R, and the frame 41L and temple tip 50L may be integrally formed.

[0020] As shown in Figures 1 and 2, the front cell 50R includes an inner surface 50Rs. The front cell 50L also includes an inner surface 50Ls. The inner surfaces 50Rs and 50Ls are the surfaces that face the user's head when the user wears the AR glasses 1. The cushions 60R and 60L are attached to the inner surfaces 50Rs and 50Ls, respectively. The cushions 60R and 60L come into contact with the user's head when the user wears the AR glasses 1. The cushions 60R and 60L are made of a material with excellent cushioning properties. In one example, the cushions 60R and 60L are made of polyurethane.

[0021] A connector CN1 is located at the end of the lead cell 50L. For example, a USB (Universal Serial Bus) cable can be inserted into the connector CN1 to connect to an electronic device such as a smartphone. The connector CN1 may also be located on the lead cell 50R.

[0022] In the examples shown in Figures 2 and 3, the chip CP is integrated into the temple 40L. The chip CP includes, for example, processing units such as a CPU (Central Processing Unit) and a GPU (Graphics Processing Unit), memory such as ROM (Read Only Memory) and RAM (Random Access Memory), and a video signal conversion IC. The chip CP may also be integrated into the temple 40R.

[0023] In the example shown in Figure 4, the light sources LSR and LSL are built into the rims 11R and 11L, respectively. The light sources LSR and LSL emit image light toward, for example, the lenses 20R and 20L, projecting the image onto them. The light sources LSR and LSL are controlled by the CPU of the chip CP.

[0024] In the example shown in Figure 4, the frame 10 incorporates several internal components PA, including, for example, an FPC (Flexible Printed Circuit) that supplies voltage and signals for driving the AR glasses 1.

[0025] The cover 100 includes a frame 110 (second frame) and lenses 120R and 120L (second lenses).

[0026] The frame 110 includes rims 111R, 111L (second rims), a bridge 112 (second bridge), a first visor portion 114, and second visor portions 115R, 115L. The frame 110 includes an inner surface S3 and an outer surface S4 opposite to the inner surface S1. The inner surface S3 corresponds to the surface facing the outer surface S2 when the cover 100 is attached to the main body portion 2. The outer surface S4 corresponds to the surface located on the opposite side of the main body portion 2 when the cover 100 is attached to the main body portion 2.

[0027] Rims 111R and 111L are aligned along the X direction. Rims 111R and 111L have the same shape as rims 11R and 11L. That is, rims 111R and 111L have an annular shape.

[0028] As shown in Figure 4, the rim 111R has an annular projection 113R located on the inner surface S3. The rim 111L also has an annular projection 113L located on the inner surface S3. The projections 113R and 113L engage with the grooves 13R and 13L, respectively, when the cover 100 is attached to the main body 2.

[0029] The rims 111R and 111L each hold the lenses 120R and 120L. In one example, the lenses 120R and 120L are fixed to the rims 111R and 111L by fitting grooves provided in the rims 111R and 111L with the lenses 120R and 120L. When the cover 100 is attached to the main body 2, the lenses 120R and 120L face the lenses 20R and 20L, respectively.

[0030] The bridge 112 connects the rims 111R and 111L. In one example, the rims 111R and 111L and the bridge 112 are integrally formed.

[0031] The first visor portion 114 is located above the lenses 120R and 120L and is positioned on the inner surface S3. The first visor portion 114 protrudes toward the frame 10. The first visor portion 114 is provided along the upper ends of the rims 111R and 111L and the bridge 112, respectively.

[0032] The second visor portion 115R is located below the lens 120R and is positioned on the inner surface S3. The second visor portion 115R protrudes toward the frame 10. The second visor portion 115R is provided along the lower end of the rim 111R.

[0033] The second visor portion 115L is located below the lens 120L and is positioned on the inner surface S3. The second visor portion 115L protrudes toward the frame 10. The second visor portion 115L is positioned along the underside of the rim 111L. In the example shown in Figure 4, the second visor portions 115R and 115L are spaced apart from each other, but they may be formed integrally.

[0034] For example, the light transmittance of lenses 120R and 120L is lower than that of lenses 20R and 20L. Lenses 120R and 120L can be fitted with polarized lenses, photochromic lenses, or tinted lenses.

[0035] In addition to the elements described above, AR glasses 1 may also be equipped with elements such as a battery, sensors, microphone, and speaker, as needed. These elements may be built into AR glasses 1 or attached externally to AR glasses 1.

[0036] Figure 5 is a schematic perspective view of the AR glasses 1 according to the first embodiment, with the cover 100 attached to the main body 2.

[0037] In this state, the illuminance sensor IS and cameras CM1, CM2R, and CM2L are covered by the cover 100. Specifically, the illuminance sensor IS and camera CM1 are covered by the bridge 112, camera CM2R is covered by the rim 111R, and camera CM2L is covered by the rim 111L. Therefore, when the cover 100 is attached to the main body 2, the illuminance sensor IS and cameras CM1, CM2R, and CM2L cannot be seen from the outside.

[0038] Figure 6 is a schematic cross-sectional view of the AR glass 1 along the line VI-VI in Figure 2. The rim 11L has an upper surface US1 and a lower surface LS1. The first visor portion 114 has a lower surface LS2. The second visor portion 115L has an upper surface US2 that faces the lower surface LS2.

[0039] When the cover 100 is attached to the main body 2, the upper surface US1 of the rim 11L contacts the lower surface LS2 of the first visor 114. Also, the lower surface LS1 of the rim 11L contacts the upper surface US2 of the second visor 115L. In this way, the cover 100 is fixed to the main body 2 by being sandwiched between the lower surface LS2 of the first visor 114 and the upper surface US2 of the second visor 115L. Similarly, with respect to the rim 11R, the cover 100 is fixed to the main body 2 by being sandwiched between the lower surface LS2 of the first visor 114 and the upper surface US2 of the second visor 115L.

[0040] Figure 7 is an enlarged perspective view of the endpiece 50R and cushion 60R. The endpiece 50R has a first portion 51R and a second portion 52R. The first portion 51R is located on the side of the endpiece 50R that faces the user's head when the user wears the AR glasses 1. The first portion 51R includes an inner surface 50Rs. The second portion 52R is located outside the first portion 51R. The cushion 60R is attached to the first portion 51R.

[0041] The first part 51R is formed of, for example, a resin material. In one example, the first part 51R is formed of polycarbonate. The second part 52R is formed of, for example, an elastic material. In one example, the second part 52R is formed of an elastomer. The first part 51R is formed of, for example, a material that is more rigid than the second part 52R.

[0042] Figure 8 is an enlarged top view of the temple tip 50R and cushion 60R. Note that in Figure 8, the temple tip 50R and cushion 60R are shown separated. The temple tip 50R includes an end E50a connected to the temple 40R and an end E50b on the opposite side of end E50a.

[0043] The first portion 51R has a tapered groove 53R. The groove 53R is located on the inner surface 50Rs side. The groove 53R becomes deeper from end E50b towards end E50a.

[0044] The cushion 60R is attached to the groove 53R. In one example, the cushion 60R is adhered to the groove 53R with double-sided tape. The width of the cushion 60R increases from end E50b to end E50a. That is, the width W60a of the cushion 60R on the end E50a side is greater than the width W60b of the cushion 60R on the end E50b side (W60a > W60b).

[0045] Although not shown in the diagrams, the configurations of the tip cell 50L and cushion 60L are the same as those of the tip cell 50R and cushion 60R described above using Figures 7 and 8.

[0046] Figure 9 is a schematic perspective view of the nose pad 70. The nose pad 70 comprises a sheet metal member 71 and pads 77R and 77L.

[0047] The sheet metal member 71 has arm portions 72R, 72L, locking portions 73R, 73L, connecting portion 74, leaf spring portion 75, and locking portion 76. In the example shown in Figure 9, the arm portions 72R, 72L, connecting portion 74, leaf spring portion 75, and locking portion 76 are integrally formed. However, each element may be composed of separate parts.

[0048] The arm portion 72R extends from the connecting portion 74 toward the locking portion 73R, connecting the connecting portion 74 and the locking portion 73R. The locking portion 73R is located at the end of the arm portion 72R and is formed in a C shape.

[0049] The arm portion 72L extends from the connecting portion 74 toward the locking portion 73L, connecting the connecting portion 74 and the locking portion 73L. The locking portion 73L is located at the end of the arm portion 72L and is formed in a C shape.

[0050] The connecting portion 74 connects the arm portions 72R and 72L. The leaf spring portion 75 and the locking portion 76 are connected to the connecting portion 74. The leaf spring portion 75 extends in the Z direction and its tip is bent in a U shape. The nose pad 70 is fixed to the bridge 12 by inserting the leaf spring portion 75 into a groove (groove portion 17 shown in Figure 10) provided in the bridge 12. The locking portion 76 extends in the Y direction and its tip is bent in a U shape.

[0051] Pad 77R has a nose rest portion 78R and a projection 79R protruding from the nose rest portion 78R. Pad 77L has a nose rest portion 78L and a projection 79L protruding from the nose rest portion 78L. The nose rest portions 78R and 78L are parts that come into contact with the user's nose when the user wears the AR glasses 1. The projections 79R and 79L are locked by the locking portions 73R and 73L, respectively. This fixes the pads 77R and 77L to the sheet metal member 71.

[0052] Figure 10 is a schematic cross-sectional view of the AR glasses 1 along line XX in Figure 2. Figure 10 shows a cross-section around the connection point between the nose pad 70 and the bridge 12. Note that in Figure 10, the pad 77R of the nose pad 70 is shown with a dashed line.

[0053] The bridge 12 has a groove 17 extending in the Z direction. The groove 17 is located at the bottom of the bridge 12. The leaf spring portion 75 of the nose pad 70 is inserted into the groove 17, thereby fixing the nose pad 70 to the bridge 12.

[0054] The arm portion 72R includes a first arm portion 72Ra and a second arm portion 72Rb. In the example shown in Figure 10, the first arm portion 72Ra extends in a direction D1 that intersects the Y and Z directions in cross-sectional view. Direction D1 is inclined clockwise with an angle θ1 with respect to the Y direction. A locking portion 73R is connected to one end of the first arm portion 72Ra, and the second arm portion 72Rb is connected to the other end. In the example shown in Figure 10, the connection portion P1 to which the first arm portion 72Ra and the second arm portion 72Rb are connected is parallel to the Y direction.

[0055] In the example shown in Figure 10, the second arm 72Rb extends in the Z direction in a cross-sectional view. The second arm 72Rb connects the first arm 72Ra and the connecting portion 74. In the example shown in Figure 10, the connecting portion P2 to which the second arm 72Rb and the connecting portion 74 are connected is parallel to the Y direction.

[0056] Here, we define length L1 as the length of arm portion 72R in direction D1, and length L2 as the length in the Z direction between connection portion P1 and connection portion P2. In this case, length L1 is 14 mm or less, length L2 is 10 mm or less, and angle θ1 is 20° or more.

[0057] Although not shown in the diagram, the configurations of the arm portion 72L and the locking portion 73L are the same as those of the arm portion 72R and the locking portion 73R described above using Figure 10.

[0058] Figure 11 is an enlarged plan view of a portion of the hinge 42L of the temple 40L. In Figure 11, the portion of the hinge 42L that connects to the frame 31L of the endpiece 30L is shown.

[0059] The hinge 42L has a wing portion 43L. In the example shown in Figure 11, the tip portion of the wing portion 43L has a width in the Z direction that decreases as it approaches the end of the wing portion 43L in the Y direction.

[0060] The blade portion 43L has a through hole 44L and a projection 46L. The through hole 44L penetrates the blade portion 43L in the X direction. As shown in the cross-sectional view around the lower projection 46L in Figure 11, the projection 46L extends in the Y direction and is formed in a convex shape in the X direction. In the example shown in Figure 11, the projection 46L is located on an axis AX1 that passes through the center of the through hole 44L and is parallel to the Y direction, and extends along the axis AX1.

[0061] Figure 12 is an enlarged plan view of a portion of the frame 31L of the armor 30L. In Figure 12, the portion of the frame 31L that connects to the hinge 42L of the temple 40L shown in Figure 11 is shown.

[0062] The frame 31L has a recess 33L, a projection 34L, a screw hole 35L, and grooves 36La, 36Lb, and 36Lc. The recess 33L is provided at the end of the frame 31L to which the temple 40L is connected, and is formed in a concave shape in the X direction. The recess 33L is covered by the cover 32L shown in Figure 1. The projection 34L is formed in a convex shape in the X direction. The projection 34L has a shape in which a part of the side surface of a cylinder is cut out. The screw hole 35L is provided at the top of the projection 34L. The projection 34L and the screw hole 35L are arranged concentrically.

[0063] As shown in the cross-sectional view of the area around groove 36La in the lower part of Figure 12, groove 36La is provided in a concave shape in the X direction. Grooves 36Lb and 36Lc are also provided in a concave shape in the X direction, similar to groove 36La.

[0064] The grooves 36La, 36Lb, and 36Lc extend in different directions. Specifically, groove 36La is located on axis AX2a, which passes through the centers of the projection 34L and the screw hole 35L and is parallel to the Y direction, and extends along axis AX2a. Groove 36Lb is located on axis AX2b, which passes through the centers of the projection 34L and the screw hole 35L and is inclined counterclockwise at an angle θb with respect to axis AX2a, and extends along axis AX2b. Groove 36Lc is located on axis AX2c, which passes through the centers of the projection 34L and the screw hole 35L and is inclined clockwise at an angle θc with respect to axis AX2a, and extends along axis AX2c.

[0065] In the example shown in Figure 12, angle θb is equal to angle θc (θb=θc). However, angles θb and θc may be different from each other. Also, in the example shown in Figure 12, three grooves 36La, 36Lb, and 36Lc are formed in the frame 31L, but four or more grooves may be formed in the frame 31L.

[0066] Figures 13 to 15 are plan views showing the state in which the endpiece 30L and the temple 40L are joined together. Figure 13 shows the state in which the projection 46L is fitted into the groove 36La. Figure 14(a) shows the state in which the projection 46L is fitted into the groove 36Lb. Figure 14(b) is a side view of the AR glasses 1 in the state in which the projection 46L is fitted into the groove 36Lb. Figure 15(a) shows the state in which the projection 46L is fitted into the groove 36Lc. Figure 15(b) is a side view of the AR glasses 1 in the state in which the projection 46L is fitted into the groove 36Lc.

[0067] As shown in Figures 13, 14(a), and 15(a), the protrusion 34L is inserted into the through hole 44L. In this state, the frame 31L and the hinge 42L are connected by inserting a screw (not shown) into the screw hole 35L. As a result, the frame 31L and the hinge 42L can each rotate around the protrusion 34L.

[0068] As shown in Figures 13 to 15, the angle of the temple 40L can be adjusted by fitting the projection 46L into one of the grooves 36La, 36Lb, or 36Lc.

[0069] Although not shown in the diagrams, the configurations of the endpiece 30R and temple 40R are the same as those of the endpiece 30L and temple 40L described above using Figures 11 to 15.

[0070] Figure 16 is a magnified top view of the area around the tip CP. The frame 41L of the temple 40L includes an inner surface 41Li and an outer surface 41Lo opposite the inner surface 41Li. The inner surface 41Li is the surface that faces the user's head when the user wears the AR glasses 1. The tip CP includes an inner surface CPi on the inner surface 41Li side and an outer surface CPo on the outer surface 41Lo side.

[0071] The chip CP is located on the outer surface 41Lo side of the frame 41L. Specifically, the distance Lo between the outer surface 41Lo and the outer surface CPo is smaller than the distance Li between the inner surface 41Li and the inner surface CPi (Lo <Li)。

[0072] Figure 17A is a block diagram showing an example of the configuration of AR glasses 1. In addition to the connection part CN1, cameras CM1, CM2R, CM2L, illuminance sensor IS, and light sources LSR, LSL mentioned above, AR glasses 1 also include a power supply PS and a controller CNT connected to them. In the example in Figure 17A, display elements are used as the light sources LSR and LSL. These display elements are, for example, micro organic light-emitting diodes.

[0073] The power supply PS is connected to the controller CNT. The power supply PS supplies power to the controller.

[0074] In the example shown in Figure 17A, the AR glasses 1 are connected to an electronic device DVC such as a smartphone, personal computer, or remote control. The device DVC includes a connection part CN2 and a detection circuit DC. The AR glasses 1 and the device DVC are connected by connecting the connection part CN1 on the AR glasses 1 and the connection part CN2 on the device DVC. The connection parts CN1 and CN2 are connected, for example, by a USB cable. The device DVC and the AR glasses 1 may also be connected by wireless communication.

[0075] The controller CNT comprises image processing units GP1 and GP2, an arithmetic processing unit ART, and a signal conversion unit SC. The controller CNT is integrated into, for example, the chip CP. The controller CNT corresponds to, for example, an MPU (Micro Processing Unit).

[0076] The image processing unit GP1 is connected to the signal conversion unit SC and the camera CM1. In one example, the image processing unit GP1 processes the image captured by the camera CM1. The image processing unit GP1 also controls the drive of the camera CM1. The image processing unit GP2 is connected to the arithmetic processing unit ART, the signal conversion unit SC, the power supply PS, the connection unit CN1, and the cameras CM2R and CM2L. In one example, the image processing unit GP2 processes the image captured by the cameras CM2R and CM2L. The image processing unit GP2 also controls the drive of the cameras CM2R and CM2L. The image processing units GP1 and GP2 transmit the processed image signal to the detection circuit DC of the device DVC via the connection units CN1 and CN2. The image processing units GP1 and GP2 include, for example, an ISP (Image Signal Processor). Note that the drive of the cameras CM1, CM2R, and CM2L may be performed by components other than the image processing units GP1 and GP2.

[0077] The signal conversion unit SC is connected to the arithmetic processing unit ART, image processing units GP1 and GP2, power supply PS, connection unit CN1, and light sources LSR and LSL. In one example, the signal conversion unit SC converts the signal sent from the device DVC and sends the signal to the display elements of the light sources LSR and LSL. For example, the signal conversion unit SC converts a DisplayPort signal sent from a device into an LVDS (Low Voltage Differential Signaling) signal.

[0078] The arithmetic processing unit ART is connected to the power supply PS, connection unit CN1, image processing unit GP2, signal conversion unit SC, and illuminance sensor IS. In one example, the arithmetic processing unit ART processes the measured values ​​obtained from the illuminance sensor IS. The arithmetic processing unit ART transmits the results of the processing to the detection circuit DC of the device DVC via connection units CN1 and CN2. The arithmetic processing unit ART includes components such as a CPU, GPU, and memory.

[0079] The detection circuit DC included in the device DVC analyzes, for example, the calculation results sent from the arithmetic processing unit ART and the image signals sent from the image processing units GP1 and GP2 to make a comprehensive determination of whether or not the cover 100 is present. If the comprehensive determination is made that the cover 100 is present, the detection circuit DC transmits the comprehensive determination result to the image processing units GP1 and GP2. Upon receiving the determination result, the image processing units GP1 and GP2 disable the functions of the cameras CM1, CM2R, and CM2L and turn them off.

[0080] Figure 17B is a flowchart illustrating an example of the operation procedure for AR glasses 1. First, the image processing units GP1 and GP2 activate the illuminance sensor IS and cameras CM1, CM2R, and CM2L (step ST1). Next, the illuminance sensor IS measures the illuminance (step ST2). Illuminance measurements are performed at regular intervals.

[0081] Next, the arithmetic processing unit ART processes the measurement value from the illuminance sensor IS and transmits the result of the processing to the detection circuit DC of the device DVC. The detection circuit DC determines whether the measurement value is lower than the threshold (step ST3). If the measurement value is higher than the threshold, the arithmetic processing unit ART processes the next measurement value, and the detection circuit DC determines whether the measurement value is lower than the threshold based on the result of that processing.

[0082] If the measured value is lower than the threshold, the detection circuit DC determines whether the measured value has been lower for n consecutive times or more (step ST4). n is a natural number greater than or equal to 1. If the measured value has been lower for less than n consecutive times, the arithmetic processing unit ART performs calculations on the next measured value, and the detection circuit DC determines whether the measured value is lower than the threshold based on the result of those calculations.

[0083] If the measured value is low for n consecutive times or more, the detection circuit DC makes an overall determination that the cover 100 is present (the cover 100 is attached to the frame 10). Subsequently, the detection circuit DC transmits the result of the overall determination to the image processing units GP1 and GP2. Upon receiving the result of the overall determination, the image processing units GP1 and GP2 turn off the functions of the cameras CM1, CM2R, and CM2L (step ST5).

[0084] In this embodiment, as shown in Figure 5, when the cover 100 is attached to the main body 2, the illuminance sensor IS is covered by the cover 100. Therefore, the measured value of the illuminance sensor IS becomes lower than the threshold. Consequently, the detection circuit DC determines that the measured value of the illuminance sensor IS is lower than the threshold (YES in step ST3).

[0085] Next, because the illuminance sensor IS is covered by the cover 100, the measured values ​​of the illuminance sensor IS are continuously lower than the threshold. Therefore, the detection circuit DC determines that the measured values ​​of the illuminance sensor IS are low for n consecutive times or more (YES in step ST4).

[0086] Next, the detection circuit DC makes an overall determination that the cover 100 is present. Subsequently, the detection circuit DC transmits the overall determination result to the image processing units GP1 and GP2. Upon receiving the overall determination result, the image processing units GP1 and GP2 turn off the functions of cameras CM1, CM2R, and CM2L (step ST5). In this way, when the cover 100 is attached to the main unit 2, cameras CM1, CM2R, and CM2L are turned off.

[0087] Figure 17C is a flowchart showing another example of the procedure for the function of AR glasses 1. Steps ST1 to ST4 are the same as the flowchart in Figure 17B.

[0088] In step ST4, if the measured value is low for n consecutive times or more, cameras CM1, CM2R, and CM2L take an image, and image processing units GP1 and GP2 process the captured image. After that, image processing units GP1 and GP2 transmit the processed image signal to the detection circuit DC. The detection circuit DC analyzes the image signal and determines whether or not the cover 100 is present (step ST6). If the detection circuit DC determines that the cover 100 is not present, the calculation processing unit ART performs calculation processing on the next measured value and determines whether the measured value is lower than the threshold based on the result of that calculation processing.

[0089] If the detection circuit DC determines that cover 100 is present based on the analysis of the image signal, the detection circuit DC makes an overall determination that cover 100 is present. Subsequently, the detection circuit DC transmits the overall determination result to the image processing units GP1 and GP2. Upon receiving the overall determination result, the image processing units GP1 and GP2 turn off the functions of cameras CM1, CM2R, and CM2L (step ST5).

[0090] In this embodiment, as shown in Figure 5, when the cover 100 is attached to the main body 2, the cameras CM1, CM2R, and CM2L are covered by the cover 100. Therefore, the detection circuit DC determines that the cover 100 is present by analyzing the image signals sent from the image processing units GP1 and GP2 (YES in step ST6). Based on this determination result and the calculation results of the illuminance sensor IS measurements described above, the detection circuit DC makes an overall determination that the cover 100 is present. Subsequently, the image processing units GP1 and GP2 turn off the functions of the cameras CM1, CM2R, and CM2L (step ST5). In this way, when the cover 100 is attached to the main body 2, the cameras CM1, CM2R, and CM2L are turned off.

[0091] As another example, the detection circuit DC may make a comprehensive determination of the presence of the cover 100 using only the analysis results of the image signals sent from the image processing units GP1 and GP2. That is, step ST6 may be performed after step ST2 in Figure 17C.

[0092] The method for turning off cameras CM1, CM2R, and CM2L when the cover 100 is attached to the main unit 2 is not limited to the example described above.

[0093] Figure 18 is a block diagram showing another example of the configuration of AR glasses 1. In the block diagram shown in Figure 18, the arrangement of the detection circuit DC differs from that in the block diagram shown in Figure 17A.

[0094] In the example shown in Figure 18, the controller CNT further includes a detection circuit DC. The detection circuit DC is connected to the power supply PS, the connection unit CN1, the image processing unit GP2, the arithmetic processing unit ART, and the signal conversion unit SC.

[0095] Even in this configuration, the detection circuit DC makes a comprehensive determination of the presence of the cover 100 based on the calculation results of the illuminance sensor IS transmitted from the arithmetic processing unit ART and the image signals obtained by processing the images captured by cameras CM1, CM2R, and CM2L sent from the image processing units GP1 and GP2.

[0096] Thus, the AR glasses 1 do not necessarily have a detection circuit DC as shown in the example in Figure 17A, or they may have a detection circuit DC as shown in the example in Figure 18.

[0097] Figure 19 shows the state when using AR glasses 1. Figure 19(a) is a schematic rear view of AR glasses 1 displaying the AR image AP. Figure 19(b) shows an example of the image that the user can see through AR glasses 1. Note that Figure 19(a) only shows the right side of AR glasses 1, but the AR image AP is displayed on the left side of AR glasses 1 in the same way as on the right side.

[0098] As shown in Figure 19(a), the AR image AP is projected directly onto the lens 20R by emitting image light from a light source LSR built into the AR glasses 1 to the lens 20R. Note that the projection method of the AR image AP is not limited to the example above.

[0099] When a user wears the AR glasses 1 in the state shown in Figure 19(a), the user can see the real space RS through the area of ​​the lens 20R where the AR image AP is not displayed. Therefore, as shown in Figure 19(b), the user can simultaneously see both the AR image AP and the real space RS so that the AR image AP overlaps with the real space RS. In the example in Figure 19(b), the user can simultaneously see both the indoor real space RS and the AR image AP of a landscape including flowers, etc.

[0100] Here, we will explain the case where the AR glasses 1 do not have a cover 100. In this case, the cameras CM1, CM2R, and CM2L are exposed from the surface of the frame 10. That is, people around the user can see the cameras CM1, CM2R, and CM2L. Therefore, even if the cameras CM1, CM2R, and CM2L are not being used, there is a possibility that suspicion may arise that the cameras CM1, CM2R, and CM2L are being used for surreptitious filming or surveillance. This may lead to resistance to wearing the AR glasses.

[0101] In this embodiment, the cover 100 is attached to the main body 2, so that the cameras CM1, CM2R, and CM2L are covered by the cover 100. As a result, the cameras CM1, CM2R, and CM2L are not visible to people in the vicinity. This eliminates the suspicion that the user is using the cameras CM1, CM2R, and CM2L. Consequently, resistance to wearing the AR glasses 1 is reduced, and the convenience of the AR glasses 1 is improved.

[0102] Furthermore, in this embodiment, the light transmittance of lenses 120R and 120L is lower than that of lenses 20R and 20L. Therefore, the brightness of the ambient light is reduced by lenses 120R and 120L. If the light transmittance of lenses 120R and 120L were approximately the same as that of lenses 20R and 20L, the ambient light intensity may exceed the brightness of the AR image AP. In such a case, the visibility of the AR image AP would decrease, potentially reducing the usability of the AR glasses 1.

[0103] In this embodiment, the ambient light intensity is reduced by the lenses 120R and 120L, making it less likely for the ambient light intensity to exceed the brightness of the AR image AP, thus suppressing a decrease in the visibility of the AR image AP.

[0104] Furthermore, in this embodiment, when the illuminance sensor IS is covered by the cover 100, the cameras CM1, CM2R, and CM2L are turned off, as described above. Therefore, the power consumption of the AR glasses 1 can be reduced, making it possible to use the AR glasses 1 for a long time.

[0105] Furthermore, because the frame 10 of AR glasses 1 is equipped with various components, the center of gravity of AR glasses 1 shifts forward, which may cause AR glasses 1 to shift during use. If AR glasses 1 shifts, it may result in situations where part of the AR image AP becomes invisible.

[0106] In this embodiment, cushions 60R and 60L are attached to the end cells 50R and 50L. This increases the tightening force on the user's head, suppresses slippage of the AR glasses 1 when in use, and improves the fit of the AR glasses 1.

[0107] Furthermore, cushions 60R and 60L are made of materials with excellent cushioning properties, such as polyurethane. Therefore, the tightening force can be increased without the user feeling excessively tight from the AR Glasses 1. As a result, the wearing comfort of the AR Glasses 1 can be improved.

[0108] Furthermore, the first portion 51R, 51L to which the cushions 60R, 60L are bonded is made of a material with higher rigidity than the second portion 52R, 52L, which is made of an elastic material. Therefore, compared to the case where both the first portion 51R, 51L and the second portion 52R, 52L are made of an elastic material, the bonding strength of the cushions 60R, 60L is improved. In addition, by making the parts of the temple tips 50R, 50L other than the parts to which the cushions 60R, 60L are bonded an elastic material, the elasticity of the temple tips 50R, 50L can also be ensured, preventing a decrease in the wearing comfort of the AR glasses 1.

[0109] Furthermore, as shown in Figure 8, the tip cell 50R has a groove 53R that deepens from end E50b to end E50a. The cushion 60R is thicker from end E50b to end E50a. By increasing the thickness of the cushion 60R in the part that strongly contacts the user's temple, the cushioning effect is increased, and the fit of the AR glasses 1 can be improved. In addition, by increasing the thickness of the cushion 60R, it is possible to reduce variations in the fit of the AR glasses 1 even if the size and shape of the user's head differ.

[0110] Furthermore, in this embodiment, the lengths L1 and L2 of the arms 72R and 72L of the nose pad 70 and the extension angle θ1 are in the relationship described above. Due to this positional relationship, the lenses 20R and 20L are close to the user's eyes, and even if the AR glasses 1 are slightly misaligned, it is possible to prevent a part of the AR image AP from becoming invisible. As a result, it is possible to suppress a decrease in the visibility of the AR image AP.

[0111] Furthermore, in this embodiment, as shown in Figures 13 to 15, the angle of the temple 40L can be adjusted by fitting the projection 46L provided on the temple 40L with one of the grooves 36La, 36Lb, or 36Lc provided on the endpiece 30L. Therefore, even if the user's nose height or ear position differs, the position of the lenses 20R and 20L can be kept horizontal. As a result, it is possible to prevent a situation where part of the AR image AP becomes invisible due to the shifting of the AR glasses 1, and to suppress a decrease in the visibility of the AR image AP.

[0112] Furthermore, in this embodiment, as shown in Figure 16, the tip CP is positioned on the outside of the temple 40L. That is, the tip CP is positioned on the temple 40L in a location that is far from the user and difficult to touch. Therefore, even if the tip CP becomes hot during use, the risk of low-temperature burns and other dangers can be avoided.

[0113] [Second Embodiment] Figure 20 is a schematic perspective view of the AR glasses 1 according to the second embodiment. Figure 20 shows the AR glasses 1 with the cover 100 removed from the main body 2.

[0114] The frame 110 has openings 116, 117R, 117L, and 118. Opening 116 is provided in the bridge 112 and penetrates the bridge 112 in the Y direction. Opening 117R is provided in the rim 111R and penetrates the rim 111R in the Y direction. Opening 117L is provided in the rim 111L and penetrates the rim 111L in the Y direction. Opening 118 is provided in the bridge 112 and penetrates the bridge 112 in the Y direction. In the second embodiment, openings 116, 117R, and 117L correspond to the first opening, and opening 118 corresponds to the second opening.

[0115] Figure 21 is a schematic perspective view of the AR glasses 1 according to the second embodiment, with the cover 100 attached to the main body 2.

[0116] Aperture 116 overlaps with camera CM1 and is positioned in front of camera CM1. Aperture 117R overlaps with camera CM2R and is positioned in front of camera CM2R. Aperture 117L overlaps with camera CM2L and is positioned in front of camera CM2L. Aperture 118 overlaps with illuminance sensor IS and is positioned in front of illuminance sensor IS. In other words, in the AR glasses 1 according to the second embodiment, cameras CM1, CM2R, CM2L and illuminance sensor IS are not covered by cover 100.

[0117] Therefore, in the AR glasses 1 according to the second embodiment, the cameras CM1, CM2R, CM2L and the illuminance sensor IS can be used even when the cover 100 is attached to the main body 2. The AR glasses 1 according to the second embodiment can be used, for example, when you want to use the camera function outdoors. In other words, it is suitable when you want to use the cameras CM2R, CM2L while reducing ambient light with the lenses 120R, 120L.

[0118] The present invention is not limited to the embodiments described above, and in the implementation stage, the components can be modified and implemented without departing from the spirit of the invention. Furthermore, various inventions can be formed by appropriately combining the multiple components disclosed in the above embodiments. For example, some components may be deleted from all the components shown in the embodiments. Moreover, components from different embodiments may be appropriately combined. [Explanation of symbols]

[0119] 1...AR glasses, 2...Main body, 100...Cover, 10, 110...Frame, 20R, 20L, 120R, 120L...Lens, 30R, 30L...Armpiece, 40R, 40L...Temple, 50R, 50L...Endpiece, 60R, 60L...Cushion, 70...Nose pad, CM1, CM2R, CM2L...Camera, IS...Illuminance sensor, LSR, LSL...Light source, AP...AR image, RS...Real space.

Claims

1. A first frame that holds a pair of first lenses, A pair of temples connected to the first frame and extending in one direction, A light source is built into the first frame and emits image light that displays an image toward the pair of first lenses, A pair of second lenses facing the pair of first lenses, a second frame holding the pair of second lenses, and a cover detachably attached to the first frame, Equipped with, The light transmittance of the pair of second lenses is lower than that of the pair of first lenses. AR glasses.

2. The first frame further comprises at least one camera attached to it, The camera is covered by the second frame when the cover is attached to the first frame. AR glasses according to claim 1.

3. The first frame further comprises an illuminance sensor, The illuminance sensor is covered by the second frame when the cover is attached to the first frame. AR glasses according to claim 2.

4. The system further includes an image processing unit that processes images captured by the aforementioned camera. When the image processing unit receives a signal indicating that the cover has been attached to the first frame, it turns off the camera. AR glasses according to claim 2.

5. An illuminance sensor is attached to the first frame and covered by the second frame when the cover is attached to the first frame, The system further comprises a calculation processing unit that performs calculations on the measured values ​​of the illuminance sensor, The image processing unit receives the determination signal when the measured value of the illuminance sensor calculated by the calculation processing unit falls below a predetermined value for several consecutive periods. AR glasses according to claim 4.

6. An illuminance sensor is attached to the first frame and covered by the second frame when the cover is attached to the first frame, The system further comprises a calculation processing unit that performs calculations on the measured values ​​of the illuminance sensor, The image processing unit receives the determination signal when the measured values ​​of the illuminance sensor calculated by the calculation processing unit fall below a predetermined value for several consecutive periods, and the presence of the cover is recognized from the camera image processed by the image processing unit. AR glasses according to claim 4.

7. The image processing unit receives the determination signal when it recognizes the presence of the cover from the image captured by the camera processed by the image processing unit. AR glasses according to claim 4.

8. An illuminance sensor is attached to the first frame and covered by the second frame when the cover is attached to the first frame, The controller further includes a calculation processing unit for processing the measured values ​​of the illuminance sensor, an image processing unit for processing the images captured by the camera, and a detection circuit for detecting the presence or absence of the cover. AR glasses according to claim 2.

9. The detection circuit monitors the measured value of the illuminance sensor calculated by the calculation processing unit, and when the measured value falls below a predetermined value for several consecutive periods, it transmits a determination signal to the image processing unit indicating that the cover is attached to the first frame. When the image processing unit receives the determination signal, it turns off the camera. AR glasses according to claim 8.

10. The detection circuit monitors the measured value of the illuminance sensor calculated by the calculation processing unit, and when the measured value continuously falls below a predetermined value and the presence of the cover is recognized from the analysis result of the camera image processed by the image processing unit, it transmits a signal to the image processing unit indicating that the cover is attached to the first frame. When the image processing unit receives the determination signal, it turns off the camera. AR glasses according to claim 8.

11. The controller further includes an image processing unit for processing images captured by the camera and a detection circuit for detecting the presence or absence of the cover. When the detection circuit recognizes the presence of the cover from the analysis results of the camera image processed by the image processing unit, it transmits a signal to the image processing unit indicating that the cover is attached to the first frame. When the image processing unit receives the determination signal, it turns off the camera. AR glasses according to claim 2.

12. The first frame further comprises at least one camera attached to it, The second frame has the same number of first apertures as the number of cameras, The first opening, when the cover is attached to the first frame, faces the camera. AR glasses according to claim 1.

13. The first frame further comprises an illuminance sensor, The second frame, when the cover is attached to the first frame, has a second opening facing the illuminance sensor. AR glasses according to claim 12.

14. A color camera that captures color images, Two monochrome cameras that take black and white images, It is further equipped with an illuminance sensor, The first frame comprises a pair of first rims each holding the pair of first lenses, and a first bridge connecting the pair of first rims. The color camera and the illuminance sensor are arranged in the first bridge. The two monochrome cameras are positioned on each of the pair of first rims, AR glasses according to claim 1.

15. The second frame comprises a pair of second rims each holding the pair of second lenses, and a second bridge connecting the pair of second rims. The pair of second rims respectively cover the two monochrome cameras when the cover is mounted on the first frame. The second bridge covers the color camera and the illuminance sensor when the cover is mounted on the first frame. AR glasses according to claim 14.

16. The second frame comprises a pair of second rims each holding the pair of second lenses, and a second bridge connecting the pair of second rims. Each of the pair of second rims and the second bridge has a first opening that faces either the color camera or the two monochrome cameras when the cover is mounted on the first frame. The second bridge has a second opening that faces the illuminance sensor when the cover is attached to the first frame. AR glasses according to claim 14.

17. The second frame has a first visor portion and a second visor portion that project from the second frame toward the first frame and are provided on both sides of the second lens, respectively. The cover is attached to the first frame by the first visor portion and the second visor portion fitting to both sides of the first frame. AR glasses according to any one of claims 1 to 16.

Images