Pan-focus glasses, xr glasses, and contact lenses with collimating function

Abstract

The pan-focus glasses comprise: a left-eye housing and a right-eye housing (20) that are each integral with a frame (10) and transparent; a transparent column assembly (30) that is movably housed in each of the housings; and an eye tracking sensor (50) that is attached to each of the housings. The transparent column assembly is configured such that a plurality of transparent columns (31) each having a transmittance of 50% or more and a radiation angle of 5 degrees or less with respect to incident light are arranged and light transmitted through each of the transparent columns converges to a convergence point. According to the result of detection of the position of the pupil of a user's eye by the eye tracking sensor, the transparent column assembly is moved to face the pupil and such that the convergence point is located on the surface or inside of a cornea, inside an eyeball, or the like.

Description

Pan focus glasses, XR glasses and contact lenses with collimation function

[0001] The present invention relates to pan-focus glasses, XR (Cross Reality) glasses, and contact lenses with a collimating function.

[0002] When it comes to eyeglasses, it is necessary to select the appropriate lens power according to the user's visual acuity. Furthermore, the shape of the lenses used differs between farsighted and nearsighted users. For bifocal eyeglasses, different lenses are installed within the frame, and the viewing position must be changed depending on the distance or closeness of the object. Furthermore, the lenses must be changed as the user's visual acuity changes.

[0003] On the other hand, XR glasses such as VR (Virtual Reality) glasses and MR (Mixed Reality) glasses, which combine real images captured by an image sensor with virtual images and project them on a close-up display in front of the eyes, require lenses to focus the user's eyes on the close-up display, so a certain distance must be secured between the display and the eyes. Generally, the usual convex lenses have been replaced with Fresnel lenses or pancake lenses to make them thinner, but many still have a bulky shape similar to ski goggles, making them inconvenient for everyday use, and further thinning is desired.

[0004] Recently, a head-mounted display has been proposed that includes an angle-selective transmission element in the optical path of an electronic viewfinder (see Patent Document 1). The angle-selective transmission element is located opposite the eyepoint and has multiple apertures as a limiting means for limiting the direction of light transmission to a predetermined range. The angle-selective transmission element limits the angle range of the light transmission direction to different ranges in at least two regions, making it possible to limit or block light from directions other than the eyepoint. However, this head-mounted display uses a convex lens to focus on the image on the proximity display, which has problems similar to those of VR glasses and MR glasses. Furthermore, this head-mounted display is configured such that it is difficult to ensure a sufficiently large eyebox. Another head-mounted display has been proposed that includes a display element, a shutter mechanism that interposes multiple optical local apertures between the display element and an assumed pupil region, which has the position and size of the pupils of both eyes assumed when worn, and the display element, and a display control unit that rapidly switches the display position of a partial image on the display surface of the display element in synchronization with the position of the local apertures of the shutter mechanism (see Patent Document 2). Patent Document 2 describes that pan-focusing using a pinhole can alleviate the problem of inconsistency between the convergence angle of the eyes and the focal length. However, this head-mounted display is not easily made thin and lightweight, and the usage environment (conditions) is limited. In the case of XR glasses, it will be difficult to widely spread them unless they are thin and lightweight devices like eyeglasses or sunglasses.

[0005] JP 2022-46404 A JP 2011-145607 A

[0006] The problem to be solved by this invention is to provide pan-focus eyeglasses that dramatically reduce the mixing ratio of light and provide a clear field of view with little blur from long distances to very close distances by viewing the outside world through a transparent column assembly that transmits only light within a certain radiation angle instead of normal eyeglass lenses.

[0007] Another problem that this invention aims to solve is to provide XR glasses that enable image recognition at an overwhelmingly closer distance than conventional optical systems by viewing images on a close-up display through a transparent column assembly that transmits only light within a certain radiation angle, and that can realize VR glasses, MR glasses, etc. that are not much thicker than regular glasses and do not take up much space.

[0008] Yet another problem that this invention aims to solve is to provide a contact lens with a collimating function that can be used in combination with the XR glasses main body to recognize images with sufficient resolution, and XR glasses that use this contact lens with a collimating function.

[0009] In order to solve the above problem, the present invention provides pan-focus eyeglasses having: transparent left-eye and right-eye housings formed integrally with a frame; transparent pillar assemblies movably housed inside the left-eye and right-eye housings, respectively; and at least one eye tracking sensor attached to each of the left-eye and right-eye housings, wherein the transparent pillar assemblies are arranged to have a plurality of transparent pillars that act as collimators with a transmittance of 50% or more and an emission angle of 5 degrees or less for incident light, and are configured so that light that has passed through each transparent pillar converges to a convergence point; and the eye tracking sensor detects the position of the pupil of the user's eye, ...

[0010] Typically, the left-eye and right-eye housings are filled with a liquid having a refractive index equivalent to that of the transparent pillars, and the transparent pillar assemblies are suspended within the liquid. The liquid filled within the left-eye and right-eye housings is selected as needed, taking into consideration the material of the transparent pillars that make up the transparent pillar assemblies, and examples include silicone oil (refractive index 1.4 to 1.58, viscosity 1 to tens of thousands of mPa·s), oil-immersion oil (refractive index up to 1.5, viscosity 150 to tens of thousands of mPa·s), water (refractive index 1.33, viscosity up to 1 mPa·s), and alcohol (refractive index up to 1.4, viscosity 0.5 to 0.8 mPa·s). Typically, the transparent pillar assemblies can be composed of a large number of transparent pillars in the shape of regular hexagonal truncated pyramids, arranged on a curved surface in a honeycomb pattern with their side surfaces in close contact with each other. A light-absorbing film is provided on the side of each transparent pillar. The material of the transparent pillars is selected as needed, but examples include thermoplastic acrylic resin (PMMA), polycarbonate (PC) resin, and polydimethylsiloxane (PDMS). The refractive index of these materials is 1.4 to 1.6. The transparent pillars may be hollow and made of air. The material of the light-absorbing film is selected as needed, but examples include black resist.

[0011] The transparent column assembly can be configured to be movable by magnetic or electric force. When the transparent column assembly is moved by magnetic force, for example, micromagnets are attached to multiple locations on the transparent column assembly, and multiple microcoils are attached to at least one of the front and rear surfaces of the left-eye and right-eye housings so that they can be driven independently of each other. Typically, the multiple microcoils are arranged in a two-dimensional array. The micromagnets are typically attached to at least three locations on the transparent column assembly. The micromagnets are selected as needed, but for compactness, strong magnets such as neodymium magnets are preferably used. Typically, the micromagnets are attached to multiple locations on the transparent column assembly, and multiple microcoils are attached to at least one of the front and rear surfaces of the left-eye and right-eye housings so that they can be driven independently of each other. These multiple microcoils are typically arranged in a two-dimensional array, but this is not a limitation. The transparent column assembly may also be configured to be movable by mechanically changing its position and angle. For example, a piezo actuator or a motor may be connected to the transparent column assembly.

[0012] The eye tracking sensors are typically near-infrared sensors, which are attached to the four corners of the left and right eye housings. The eye tracking sensors detect the user's pupils, thereby detecting eye movement, and then move the transparent column assembly accordingly.

[0013] Here, the above-mentioned radiation angle represents the angular range from the emission direction where the light intensity is at its maximum to the angle where that intensity is reduced to half, and a light radiation angle of 5 degrees or less means that, with the emission direction where the light intensity is at its maximum as the reference (0 degrees), the angular range where the light intensity is reduced to half is within ±2.5 degrees, or within a range of 5 degrees.

[0014] The present invention also provides XR glasses comprising: transparent left-eye and right-eye housings formed integrally with a frame; transparent column assemblies movably housed inside the left-eye and right-eye housings, respectively; at least one eye tracking sensor attached to each of the left-eye and right-eye housings; and opaque or translucent left-eye and right-eye displays provided on the front surfaces of the left-eye and right-eye housings, respectively; wherein the transparent column assemblies are configured to have an array of transparent columns acting as collimators with a transmittance of 50% or more and an emission angle of 5 degrees or less for incident light, and the light transmitted through each transparent column converges to a convergence point; and wherein the transparent column assemblies have the function of moving the transparent column assemblies inside the left-eye and right-eye housings to face the pupils according to the results of detection of the position of the pupils of the user's eyes by the eye tracking sensor, and so that the convergence point is located either on the surface or inside of the cornea, the pupil, the surface or inside of the crystalline lens, or inside the eyeball.

[0015] XR glasses are a general term for glasses that use technologies such as VR, AR (Augmented Reality), MR, and SR (Substitutional Reality), as well as intermediate technologies between these technologies (for example, technologies positioned between AR and MR), and are video display devices that create a space that provides a simulated experience by fusing the real and virtual worlds. AR is a technology that projects a virtual world onto real space, MR is a technology that fuses real space and virtual space, and SR is a technology that overlays past images onto real space, making past events appear as if they are happening right in front of your eyes.

[0016] The left-eye display and the right-eye display as the proximity display are, for example, a liquid crystal display (LCD) display, an organic electroluminescence (EL) display, a micro light-emitting diode (LED) display, or the like.

[0017] In this invention of XR glasses, apart from the above, what has been explained in relation to the invention of the pan-focus glasses is also valid.

[0018] The present invention also provides pan-focus eyeglasses comprising: a left-eye lens or non-lens element and a right-eye lens or non-lens element that are integral with a frame; and a transparent pillar assembly that is provided on the front or rear surface of the left-eye lens or non-lens element and the front or rear surface of the right-eye lens or non-lens element, respectively; wherein the transparent pillar assembly is an array of transparent pillars that act as collimators and have a transmittance of 50% or more and an emission angle of 5 degrees or less for incident light, and is configured so that light that has passed through each transparent pillar converges to a convergence point, and the convergence point is located on the surface or inside of the cornea, the pupil, the surface or inside of the crystalline lens, or inside the eyeball.

[0019] The left-eye lens and the right-eye lens may be convex or concave lenses, and may have prescription or non-prescription. The left-eye non-lens member and the right-eye non-lens member may be, for example, a windshield (a transparent or translucent plastic or glass member without lens function).

[0020] In this invention of pan-focus glasses, the same explanation as in the invention of the pan-focus glasses above applies except for the above.

[0021] The present invention also provides XR glasses comprising: an XR glasses main body having a left-eye display section and a right-eye display section each comprising a translucent micro-light-emitting diode display, the left-eye display section having a pixel array in which one pixel is composed of at least three or more sub-pixels, and one or more micro-light-emitting diodes included in each of the sub-pixels, the pixel having an aperture ratio of 10% or more; and a contact lens with a collimating function, which has a transmittance of 50% or more and an emission angle of 5 degrees or less for light emitted from any point on the left-eye display section and the right-eye display section.

[0022] The collimating contact lens may be configured in any manner as long as it can achieve a radiation angle of 5 degrees or less with a transmittance of 50% or more for light emitted from any point on the left-eye display unit and the right-eye display unit. Typically, the central portion of the collimating contact lens, excluding the peripheral portion, can be configured as a transparent column assembly, for example, in the form of a regular hexagonal truncated pyramid, with multiple transparent columns arranged in a honeycomb pattern with their sides in close contact with each other on a curved surface corresponding to the surface of the cornea. A light-absorbing film is provided on the side of each transparent column. In this case, when the collimating contact lens is worn on the cornea, the convergence point of light passing through each transparent column of the collimating contact lens is preferably located near the center of the crystalline lens. While the field of view becomes narrower as the convergence point is closer to the center of the eyeball, a sufficiently wide field of view can be ensured by designing and manufacturing the lens so that the convergence point of transmitted light is located near the center of the crystalline lens. The shape of the outer frame of the transparent column assembly may be any shape, such as a circle, an ellipse, a square, a rectangle, or a polygon, and can be designed appropriately according to specifications (such as product design).

[0023] When this contact lens with collimating function is attached to the cornea and the XR glasses main body is placed in front of the eye, light from the micro light-emitting diode enters one end of the transparent column of the contact lens with collimating function and exits from the other end, allowing light with a radiation angle of 5 degrees or less to enter the crystalline lens.

[0024] Light has wave properties, and there are diffraction phenomena, some light passes through light-absorbing films, and some light passes beyond the geometrically designed angle. Therefore, a radiation angle of 5 degrees or less means that, based on the direction of light emitted from any point on the display and passing through each transparent pillar of the collimating contact lens toward the convergence point, the radiation angle range in which the transmittance is 50% or more is 5 degrees or less (±2.5 degrees or less).

[0025] In this invention of XR glasses, the same as that already explained in relation to the invention of XR glasses applies except for the above, unless it is contrary to the nature of the invention.

[0026] The present invention also provides a contact lens with a collimating function that provides a transmittance of 50% or more and an emission angle of 5 degrees or less for light emitted from any point.

[0027] When wearing contact lenses with this collimating function, the amount of light entering the eye is reduced, but you can see clearly from far away to very close. Because they can correct both farsightedness and nearsightedness at the same time, they can also be used as contact lenses in everyday life. The above-mentioned collimating function can also be added to contact lenses with normal lens functions (shapes).

[0028] In addition, the focus range has been expanded, allowing images on a proximity display to be recognized regardless of whether or not a lens that generates a virtual image is used.It can also be used with VR glasses, and by eliminating the large lens that generates a virtual image from the VR glasses, it is possible to make the VR glasses thinner.

[0029] In the invention of this collimating contact lens, the same explanation as in the invention of the XR glasses already explained applies except for the above, unless it is contrary to the nature of the invention.

[0030] The pan-focus glasses of this invention allow the viewer to see the outside world through a transparent column assembly that transmits only light within a certain radiation angle instead of using normal eyeglass lenses, thereby dramatically reducing the mixing ratio of light and providing a clear field of view with little blur from long distances to very close distances.

[0031] With the XR glasses of this invention, images on a close-up display are viewed through a transparent column assembly that transmits only light within a certain radiation angle, making it possible to recognize images at an overwhelmingly closer distance than with conventional optical systems, and making it possible to realize VR glasses, MR glasses, and the like that are not much thicker than regular glasses and are not bulky.

[0032] The collimating contact lens of this invention attenuates the transmittance of light reflected or emitted from any point in space, having an emission angle of at least 5 degrees (±2.5 degrees) from the direction toward the convergence point of the light passing through each transparent column of the contact lens, to 50% or less, thereby enabling a clear image of any point to be formed on the retina from long distances to close distances when worn on the cornea. Furthermore, by combining this collimating contact lens with the XR glasses main body, it is possible to realize XR glasses that can display images with sufficient resolution without using a collimator in the XR glasses main body.

[0033] FIG. 1 is a left side view showing deep focus glasses according to a first embodiment of the present invention. FIG. 2 is a front view showing a left-eye housing of the deep focus glasses according to the first embodiment of the present invention. FIG. 3 is a plan view showing a transparent column assembly included inside the left-eye housing of the deep focus glasses according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view showing a transparent column assembly included inside the left-eye housing of the deep focus glasses according to the first embodiment of the present invention. FIG. 5 is a plan view showing transparent columns constituting a transparent column assembly included inside the left-eye housing of the deep focus glasses according to the first embodiment of the present invention. FIG. 6 is a side view showing transparent columns constituting a transparent column assembly included inside the left-eye housing of the deep focus glasses according to the first embodiment of the present invention. FIG. 7 is a cross-sectional view for explaining a method for manufacturing a transparent column assembly included inside the left-eye housing of the deep focus glasses according to the first embodiment of the present invention. FIG. 8 is a cross-sectional view for explaining a method for manufacturing a transparent column assembly included inside the left-eye housing of the deep focus glasses according to the first embodiment of the present invention. 7 is a cross-sectional view for explaining a manufacturing method of a transparent column assembly included inside a left-eye housing of the pan-focus glasses according to the first embodiment of the present invention. FIG. 8 is a schematic diagram showing an example of wiring of a microcoil array of a coil array substrate for generating a magnetic field provided on the front and rear surfaces of a left-eye housing of the pan-focus glasses according to the first embodiment of the present invention. FIG. 9 is a schematic diagram showing a state in which a user wears the pan-focus glasses according to the first embodiment of the present invention. FIG. 10 is a schematic diagram showing a state in which a user wears the pan-focus glasses according to the first embodiment of the present invention and their line of sight is directed downward and their eyeballs are rotated. FIG. 11 is a front view showing a left-eye housing of the pan-focus glasses according to the first embodiment of the present invention in the state shown in FIG. 7. FIG. 12 is a schematic diagram showing a state in which a user wears the XR glasses according to the second embodiment of the present invention. FIG. 13 is a schematic diagram showing a state in which a user wears the XR glasses according to the second embodiment of the present invention. FIG. 14 is a left side view showing pan-focus glasses according to a third embodiment of the present invention.10 is a schematic diagram showing a state in which a user is wearing pan-focus glasses according to a third embodiment of the present invention. FIG. 11 is a left side view showing pan-focus glasses according to a fourth embodiment of the present invention. FIG. 12 is a schematic diagram showing a state in which a user is wearing pan-focus glasses according to the fourth embodiment of the present invention. FIG. 13 is a left side view showing pan-focus glasses according to a fifth embodiment of the present invention. FIG. 14 is a schematic diagram showing a state in which a user is wearing pan-focus glasses according to the fifth embodiment of the present invention. FIG. 15 is a schematic diagram showing a state in which a user is wearing pan-focus glasses according to the fifth embodiment of the present invention and their line of sight is directed downward and their eyeballs are rotated. FIG. 16 is a right side view showing a main body of XR glasses according to a sixth embodiment of the present invention. FIG. 17 is a perspective view showing a horizontal micro LED used in a translucent micro LED display for XR glasses in the main body of XR glasses according to the sixth embodiment of the present invention. FIG. 18 is a plan view showing a contact lens with collimating function for XR glasses according to the sixth embodiment of the present invention. FIG. 19 is a cross-sectional view showing a contact lens with collimating function for XR glasses according to the sixth embodiment of the present invention. FIG. 19 is a plan view showing transparent pillars constituting a contact lens with collimating function for XR glasses according to the sixth embodiment of the present invention. Fig. 10 is a side view showing transparent pillars constituting a contact lens with collimating function for XR glasses according to a sixth embodiment of the present invention. Fig. 11 is a cross-sectional view for explaining a method for manufacturing a contact lens with collimating function for XR glasses according to a sixth embodiment of the present invention. Fig. 12 is a cross-sectional view for explaining a method for manufacturing a contact lens with collimating function for XR glasses according to a sixth embodiment of the present invention. Fig. 13 is a cross-sectional view for explaining a method for manufacturing a contact lens with collimating function for XR glasses according to a sixth embodiment of the present invention. Fig. 14 is a cross-sectional view for explaining a method for manufacturing a contact lens with collimating function for XR glasses according to a sixth embodiment of the present invention. Fig. 15 is a schematic diagram showing a state in which a user wears a contact lens with collimating function for XR glasses according to a sixth embodiment of the present invention on the cornea.13 is a schematic diagram showing a state in which a user wears XR glasses in front of the eyes according to a sixth embodiment of the present invention. 14 is a schematic diagram showing a state in which a user wears XR glasses in front of the eyes according to a sixth embodiment of the present invention.

[0034] Hereinafter, modes for carrying out the invention (hereinafter referred to as "embodiments") will be described.

[0035] 1 is a left side view showing pan-focus glasses according to a first embodiment. Since the pan-focus glasses are configured symmetrically, the configuration for the left eye side will be described below.

[0036] As shown in FIG. 1, in these pan-focus glasses, a transparent column assembly 30 is movably housed inside a transparent left-eye housing 20 integrated into a frame 10. The left-eye housing 20 has a curved shape with a convex front. The left-eye housing 20 is filled with a liquid 40, and the transparent column assembly 30 is suspended in this liquid 40. The liquid 40 has a refractive index equivalent to that of the transparent material of the transparent column assembly 30, and may be selected from among the materials listed above as needed. FIG. 2 shows an example of the rear of the left-eye housing 20, i.e., a front view of the pan-focus glasses as seen from the face side when worn by a user. As shown in FIG. 2, the left-eye housing 20 has a rectangular shape with rounded corners when viewed from the front. In this state, the transparent column assembly 30 is located approximately in the center of the left-eye housing 20. The thickness t of the left-eye housing 20 is selected as needed, but is, for example, 3 to 5 mm. As shown in FIGS. 1 and 2, eye tracking sensors 50 are attached to each of the four corners of the rear of the left-eye housing 20. The eye tracking sensor 50 is a near-infrared sensor that can detect the position of the pupil.

[0037] 3A, 3B, 3C and 3D show a transparent column assembly 30, with FIGS. 3A and 3B being plan and cross-sectional views of the transparent column assembly 30, respectively, and FIGS. 3C and 3D being plan and side views of a transparent column 31 serving as a collimator of the transparent column assembly 30, respectively.

[0038] As shown in Figures 3A and 3B, the transparent column assembly 30 has a circular, bowl-like curved shape overall. The outer periphery of the transparent column assembly 30 is made of the same material as the transparent columns 31, and micromagnets 32 are attached to and penetrate the outer periphery at four locations. In Figure 3B, the magnetic poles of the micromagnets 32 are N-pole on the curved convex side and S-pole on the concave side, but this is not limited to this and the polarities may be reversed. The diameter of the transparent column assembly 30 is, for example, 12 to 22 mm, and the thickness L is, for example, 0.1 to 0.5 mm, but is not limited to these.

[0039] The transparent column assembly 30 is formed by a large number of transparent columns 31 in the shape of a regular hexagonal truncated pyramid as shown in Figures 3C and 3D, which are arranged in a honeycomb pattern with their sides in close contact with each other. The curved outer and inner surfaces of the transparent column assembly 30 are smoothly formed. The diagonal length of the outer surface of the transparent column 31 is D Outer , the diagonal length on the inner surface is D Inner Then, D Outer >D Inner is.

[0040] 3B, the light passing through each transparent pillar 31 constituting the transparent pillar assembly 30 is configured to converge to a single point (convergence point). When the user wears the pan-focus eyeglasses, the convergence point of the light passing through each transparent pillar 31 is positioned on the surface or inside of the cornea, the surface or inside of the pupil, the lens, or inside the eyeball.

[0041] Each transparent column 310 constituting the transparent column assembly 30 is configured so that the radiation angle of light from each transparent column 31 is within 5 degrees. As shown in Figures 3C and 3D, the length of the transparent column 31 is L, and half the radiation angle is θ / 2. The design condition of the transparent column 31 is typically L / D. Outer ≧23 and D Outer >D Inner Under these conditions, the collimation angle θ is within 5 degrees, the range of L is, for example, 0.046 to 0.5 mm, and D Outer and D Inner The range is, for example, 2 to 22 μm.

[0042] The condition of a light radiation angle of 5 degrees corresponds to the radiation angle of light incident on the pupil from a light source approximately 92 mm away when the pupil diameter is 8 mm. This is the range within which some people can focus on the retina with their crystalline lens, but generally, people can comfortably focus on the retina at a distance of approximately 230 mm. In this case, when the pupil diameter is 8 mm, the radiation angle of light incident on the pupil is approximately 2 degrees. Therefore, the design condition of each transparent column 31 of the transparent column assembly 30 is more preferably the condition of θ≦2.0 degrees, that is, L / D Outer ≧57.3. The narrower the radiation angle θ of the transmitted light, the better the pan focus performance. However, since the narrower the radiation angle of light, the more the amount of transmitted light decreases, it is desirable that the radiation angle θ of light passing through each transparent column 31 be 0.1 degrees or more. It is also possible to increase the amount of transmitted light by narrowing the radiation angle of light in advance by installing a microlens array before the light enters each transparent column 31, but details will be omitted here.

[0043] The transparent material of the transparent column assembly 30 is, for example, thermoplastic acrylic resin (PMMA) or polycarbonate (PC) resin, and the material of the light-absorbing film on the side of the transparent column 31 is, for example, black resist or a material made by mixing carbon black with thermoplastic resin.

[0044] A method for manufacturing the transparent column assembly 30 will now be described. To achieve a radiation angle of 5 degrees or less, the aspect ratio of the transparent columns 31 that serve as collimators must be increased to approximately 23 or greater, making simultaneous formation difficult. Therefore, for example, as shown in FIG. 4A , a flat, stretchable transparent layer 60 is formed, which includes a transparent column assembly consisting of regular hexagonal transparent columns 31 with sidewalls formed of a light-absorbing film (not shown). This layer is then stacked in multiple layers (three in this example) as shown in FIG. 4B to form a thick film of transparent column assembly with a collimating function that is thick enough to achieve a radiation angle of 5 degrees or less. The thick film is then cut into a disk shape of appropriate size and heat-molded to form a curve. This state is shown in FIG. 4C . This process results in the area of ​​the transparent column assembly being wider on the outside of the curved surface and narrower on the inside. The convergence point of light passing through the transparent column assembly can be adjusted by the radius of curvature of the curve. The radius of curvature is selected depending on the desired position of the convergence point, but is typically approximately 12 to 30 mm. Next, as shown in Fig. 4D, excess portions of the inner and outer curved surfaces of the thick film are ground away. If necessary, the outer periphery of the transparent column assembly 30 is chamfered as shown in Fig. 4E. After this, through-holes are formed in four locations on the outer periphery of the transparent column assembly 30, and micro-magnets 32 are inserted and fixed into these through-holes. In this way, the desired transparent column assembly 30 is manufactured.

[0045] As shown in FIGS. 1 and 2 , a coil array substrate 70 is provided on the front and rear surfaces of the left-eye housing 20, facing the liquid 40. The coil array substrate 70 is a transparent substrate, such as a transparent film, on which a large number of microcoils 71 for generating a magnetic field are arranged in a two-dimensional matrix. FIG. 5 shows details of the coil array of the coil array substrate 70 and its active drive circuit. As shown in FIG. 5 , a large number of power supply lines 72 extending in the column direction and a large number of scanning lines 73 extending in the row direction are provided vertically and horizontally on the transparent substrate. The spacing a and b between the microcoils 71 are, for example, 10 to 100 μm. The active drive circuit is composed of a switching transistor T. The switching transistor T is generally composed of a thin-film transistor using a semiconductor thin film such as a polycrystalline or amorphous silicon thin film. The source of the switching transistor T is connected to the power supply line 72, the drain is connected to one end of the microcoil 71, and the gate is connected to the scanning line 73. The other end of the microcoil 71 is grounded. One or more microcoils 71 are selected by selecting the scanning line 73 and the power supply line 72. A current flows from a power supply line 72 through a switching transistor T to the selected microcoil 71, and the magnetic field penetrating the microcoil 71 is controlled by controlling the current value using a gate voltage applied to a scanning line 73. Figure 1 shows a schematic diagram of magnetic field lines penetrating the microcoil 71. The attractive or repulsive force generated between the magnetic field generated by this microcoil 71 and the micromagnets 32 attached to the four corners of the transparent column assembly 30 allows the transparent column assembly 30 to be moved in the liquid 40, and its position, angle, etc. can be adjusted. In this way, by selecting the microcoil 71 and controlling the magnetic force acting on the four micromagnets 32 in the transparent column assembly 30, the transparent column assembly 30 can be easily moved to a desired position and orientation.

[0046] FIG. 6 shows the pan-focus eyeglasses worn by a user. In FIG. 6, the left eye 100 has an eyeball 110, a lens 120, a cornea 130, an iris 140, a pupil 150, and a retina 160. If the eyeball 110 were assumed to be spherical, its diameter would be approximately 24 mm. The lens 120 has a diameter of approximately 9 mm and a thickness of approximately 3.6 mm (4.0 mm at maximum accommodation). The retina 160 extends over a length of 30 to 40 mm. The distance from the outer surface (front surface) of each transparent pillar 31 of the transparent pillar assembly 30 to the convergence point of light transmitted through each transparent pillar 31 is, for example, 12 mm when the convergence point is near the surface of the cornea 130, 16 mm when the convergence point is near the surface of the pupil 150, 18 mm when the convergence point is near the center of the lens 120, and 30 mm when the convergence point is near the center of the eyeball 110.

[0047] The ear hook portion on the left side of the frame 10 is provided with a control circuit unit 80 for controlling the operation of the coil array substrate 70, and therefore the transparent column assembly 30. The control circuit unit 80 may also be provided with a wireless communication unit if necessary. Although not shown, flexible wiring is provided on the side of the frame 10, including the ear hook portion, to connect the coil array substrate 70 and the eye tracking sensor 50 to the control circuit unit 80. A battery (such as a lithium-ion battery) used as a power source is attached to any part of the frame 10 (e.g., the ear hook portion), but this is not limiting. Bulky power sources and complex control circuits may be connected to the main body (frame 10) via a separate base, such as a neck strap. Although not shown, nose pads are provided on the nose side of the frame 10.

[0048] [Operation of Pan-Focus Eyeglasses] As shown in FIG. 6 , light from the outside world entering through the front surface of the left-eye housing 20 enters the transparent column assembly 30, where the radiation angle is narrowed to within 5 degrees by each transparent column 31. After passing through the convergence point, the light forms an image on the retina 160. FIG. 7 shows a state in which the line of sight is directed downward and the eyeball 110 has rotated, compared to FIG. 6 . As shown in FIG. 7 , even if the line of sight is directed downward and the eyeball 110 rotates, the transparent column assembly 30 is moved by magnetic force within the liquid 40 of the left-eye housing 20 in response to this rotation, ensuring that light transmitted through the transparent column assembly 30 passes through the pupil 150. More specifically, the eye tracking sensor 50 detects the pupil 150 to detect the movement of the eyeball 110, and sends a detection signal to the control circuit unit 80. The control circuit unit 80 sends a control signal corresponding to this detection signal to the coil array board 70, which then passes a selected current through the micro-coil 71 selected by the coil array board 70. This moves the transparent column assembly 30 to the desired position and orientation. Figure 8 shows a front view of this state, corresponding to Figure 2. As shown in Figure 8, the transparent column assembly 30, which was near the center in the state of Figure 2, has moved to the lower right. In this way, by being able to move the transparent column assembly 30 to the optimal position and orientation in response to the movement of the eyeball 110, a wide eyebox (visible range) can be maintained.

[0049] As described above, the pan-focus glasses according to the first embodiment allow the user to see the outside world through the transparent column assembly 30, which can narrow the radiation angle of light from the outside world to within 5 degrees, instead of using regular eyeglass lenses. This drastically reduces the light mixing ratio, thereby providing a clear field of view with sufficient resolution and little blur from long distances to very close distances, while also maintaining a wide eye box. Furthermore, the thickness of these pan-focus glasses can be made the same as that of regular glasses.

[0050] These pan-focus glasses can also alleviate eye strain, myopia, and axial myopia. In recent years, the prevalence of books, television, smartphones, video games, and other lifestyle factors has led to an increasing number of people suffering from eye strain and myopia. It is said that the prolonged time spent focusing on close distances (20 cm to 1.5 m) can lead to eye strain due to overwork of the ciliary muscles, and that deformation of the eyeball and elongation of the eye axis to facilitate close focus can cause myopia and axial myopia. For example, the recommended distance for reading a book or viewing a smartphone screen is generally approximately 40 cm. At this distance, text and images are easy to see and the eyes are less likely to be strained. However, many people view the screen closer than the recommended distance. Bringing the screen closer to the eyes increases the proportion of the book or smartphone screen in their field of vision. Small text and images, in particular, tend to be viewed closer to the eyes, increasing eye strain. These pan-focus glasses allow the design of the transparent column 31, which acts as a collimator, to control the radiation angle of the transmitted light to a certain value or less. For example, if the radiation angle of light transmitted through the transparent column 31 is designed to be 1.15 degrees or less (aspect ratio of 100 or less), the radiation angle of the transmitted light will be approximately equivalent to the radiation angle of light incident on an 8-mm pupil from a light source approximately 40 cm or more away. In this case, a user of these pan-focus glasses can view objects (text or images) approximately 40 cm away, even when the distance between the eyes and a book, smartphone, or other device is less than 40 cm, with the eyes focused on the object. Bringing the object closer to the eyes increases its proportion of the field of view, which is equivalent to magnifying the object, but without the need for magnifying lenses or increasing eye strain. Furthermore, because these pan-focus glasses do not use lenses for vision correction, they can be worn by healthy individuals without eye disorders such as myopia or presbyopia, and can be used as a device to prevent eye strain and myopia. Furthermore, if the material used in these pan-focus glasses is equipped with UV protection, it can also prevent UV-induced eye diseases (such as UV keratitis and pinguecula).

[0051] Second Embodiment [XR Glasses] Fig. 9 is a left side view showing XR glasses according to a second embodiment. Since the XR glasses are configured symmetrically, the configuration of the left eye side will be described below.

[0052] As shown in FIG. 9 , these XR glasses have a proximity display 200 provided on the front surface of a left-eye housing 20 similar to the pan-focus glasses according to the first embodiment. The proximity display 200 may be curved or flat to conform to the left-eye housing 20. The proximity display 200 is opaque or translucent. The proximity display 200 includes an opaque or translucent substrate 210 on which a two-dimensional array of pixels is provided, each consisting of three sub-pixels: a red-emitting light-emitting region 220, a green-emitting light-emitting region 230, and a blue-emitting light-emitting region 240. These light-emitting regions 220, 230, and 240 are micro-light-emitting diodes in a micro-light-emitting diode display, organic EL elements in an organic EL display, or layered structures such as a transparent conductive film, an alignment film, liquid crystal, and a color filter formed on a substrate in a liquid crystal display. The size of each pixel is selected as needed, but is, for example, 4 to 6 μm. A left-eye sensor unit 170 is provided adjacent to a control circuit unit 80 on the side or front surface of the frame 10. The left-eye sensor unit 170 may include, for example, one or more of an imaging element (such as a CMOS image sensor or CCD), LiDAR, an illuminance sensor, an acceleration sensor, a gyro sensor, a geomagnetic sensor, or an infrared sensor. An infrared sensor can be used to enable vision in the dark. If necessary, audio equipment such as a speaker, bone conduction earphone, or microphone may also be installed near the ear of the frame 10.

[0053] In the case of this XR glass, the design condition of the transparent columns 31 of the transparent column assembly 30 is preferably a condition that θ≦2.0 degrees, that is, L / D Outer ≧57.3. The narrower the angle θ, the higher the pan focus performance, which can alleviate the problem of the inconsistency between the convergence angle and focal length that is often an issue with VR glasses and the like. However, since narrowing the angle θ also reduces the amount of light that passes through the transparent columns 31, it is desirable for the angle θ to be 0.1 degrees or greater. It is also possible to increase the amount of transmitted light by installing a microlens array to narrow the radiation angle of light before the light enters the transparent column assembly 30, but details will be omitted here.

[0054] Other than the above, the XR glasses are the same as the pan-focus glasses according to the first embodiment.

[0055] FIG. 10 shows the XR glasses when worn by a user.

[0056] [Operation of XR Glasses] As shown in Fig. 10, light emitted from pixels of the proximity display 200 and incident on the transparent column assembly 30 has its radiation angle narrowed by each transparent column 31 to within 5 degrees (preferably within 2.0 degrees), passes through a convergence point, and then forms an image on the retina 160. In these XR glasses, as in Fig. 7, even when the line of sight is directed downward and the eyeball 410 is rotated compared to Fig. 10, the transparent column assembly 30 can be moved by magnetic force within the liquid 40 of the left-eye housing 20, ensuring that light transmitted through the transparent column assembly 30 passes through the pupil 150. This allows a wide eyebox to be maintained.

[0057] According to the XR glasses of the second embodiment, by viewing the image on the proximity display 200 through a transparent column assembly 30 that can narrow the radiation angle of the incident light to within 5 degrees, it becomes possible to recognize images at an overwhelmingly closer distance than with conventional optical systems, and it is possible to realize VR glasses, MR glasses, and even AR glasses and SR glasses that are not much thicker than regular glasses and do not take up much space.

[0058] 11 is a left side view showing pan-focus glasses according to a third embodiment. Since the pan-focus glasses are configured symmetrically, the configuration for the left eye side will be described below.

[0059] 11, in these pan-focus glasses, a concave lens 300 curved to follow the left-eye housing 20 is provided on the front surface of the left-eye housing 20, which is similar to the pan-focus glasses according to the first embodiment. Except for the transparent column assembly 30, the other aspects of these pan-focus glasses are the same as those of the pan-focus glasses according to the first embodiment.

[0060] Figure 12 shows what the pan-focus glasses will look like when worn by a user. As shown in Figure 12, the pan-focus glasses are configured so that the field of view within the angular range from the convergence point to the transparent column assembly 30 is covered by the transparent column assembly 30, and the field of view outside of that is covered by the concave lens 300. The field of view for one eye of a person with normal eyesight is 60 degrees above, 70 degrees below, 60 degrees toward the nose, and 100 degrees toward the ear. However, the central vision area in which shapes, colors, etc. can be clearly recognized is very small, so the area covered by the transparent column assembly 30 is limited to, for example, about ±10 degrees, and a wider range is covered by the normal concave lens 300.

[0061] [Operation of pan-focus glasses] The operation of these pan-focus glasses is the same as that of the pan-focus glasses according to the first embodiment, except that the field of view within the angular range from the convergence point to the transparent pillar assembly 30 is covered by the transparent pillar assembly 30, and the field of view outside of that is covered by the concave lens 300.

[0062] According to the pan-focus glasses of the third embodiment, by combining a left-eye housing 20 and a right-eye housing having a transparent column assembly 30 with a concave lens 300, it is possible to obtain performance equivalent to that of the pan-focus glasses of the first embodiment.

[0063] 13 is a left side view showing pan-focus glasses according to a fourth embodiment. Since the pan-focus glasses are configured symmetrically, the configuration for the left eye side will be described below.

[0064] 13, in these pan-focus glasses, a convex lens 400 curved to imitate the left-eye housing 20 is provided on the front surface of the left-eye housing 20, which is similar to the pan-focus glasses according to the first embodiment. Except for the transparent column assembly 30, the other aspects of these pan-focus glasses are the same as those of the pan-focus glasses according to the first embodiment.

[0065] Figure 14 shows the appearance of these pan-focus glasses when worn by a user. As shown in Figure 14, in these pan-focus glasses, the field of view within the angular range from the convergence point to the transparent column assembly 30 is covered by the transparent column assembly 30, and the field of view outside of that is covered by the convex lens 400. The field covered by the transparent column assembly 30 is limited to, for example, about ±10 degrees, and a wider range is covered by the normal convex lens 400.

[0066] [Operation of pan-focus glasses] The operation of these pan-focus glasses is the same as that of the pan-focus glasses according to the first embodiment, except that the field of view within the angular range from the convergence point to the transparent column group 30 is covered by the transparent column group 30, and the field of view outside of that is covered by the convex lens 400.

[0067] According to the pan-focus glasses of the fourth embodiment, by combining a left-eye housing 20 and a right-eye housing having a transparent column assembly 30 with a convex lens 400, it is possible to obtain performance equivalent to that of the pan-focus glasses of the first embodiment.

[0068] 15 is a left side view showing pan-focus glasses according to a fifth embodiment. Since the pan-focus glasses are configured symmetrically, the configuration for the left eye will be described below.

[0069] As shown in Figure 15, in these pan-focus glasses, a lens 500 is provided integrally with a frame 10, and a transparent column assembly 30 is provided on the rear surface of the lens 500, curved to follow the shape of the lens 500. The lens 500 may be a convex or concave lens, and may have a prescription or no prescription. Figure 15 shows a case in which the lens 500 is a concave lens. Unlike the pan-focus glasses according to the first embodiment, these pan-focus glasses do not have a left-eye housing 20, do not have a movement function for the transparent column assembly 30, and do not use an eye tracking sensor.

[0070] Fig. 16 shows the state when a user wears these pan-focus glasses. As shown in Fig. 16, in these pan-focus glasses, the field of view within the angular range from the convergence point to the transparent column assembly 30 is covered by the transparent column assembly 30, and the field of view outside of that is covered by the lens 500.

[0071] [Operation of pan-focus glasses] In these pan-focus glasses, the field of view within the angular range from the convergence point to the transparent column assembly 30 is covered by the transparent column assembly 30, and the field of view outside of that is covered by the lens 500. As shown in Figure 17, when the line of sight is directed downward and the eyeball 100 rotates, the area over which light transmitted through the transparent column assembly 30 reaches the retina 160 becomes narrower than in the case of Figure 16.

[0072] The pan-focus eyeglasses according to the fifth embodiment offer the following advantages. Specifically, as shown in FIG. 16 , when the transparent column assembly 30 is fixed in a central position when viewed from the front, even slight movement of the user's line of sight (pupil 150) creates an area where light that should normally enter the field of view is blocked by the transparent column assembly 30 and becomes invisible. However, in everyday life (e.g., when reading a book or newspaper at a leisurely pace) where the user does not need to move the eyeball 100 vigorously, such as during strenuous exercise or gaming, the user can move their head or neck without moving the pupil 150 much, and view the object (object, letter, etc.) with near-normal vision. In this case, it is possible to omit the function of moving the transparent column assembly 30 using an eye tracking sensor, thereby enabling pan-focus eyeglasses to be realized at low cost.

[0073] Sixth Embodiment [XR Glasses] XR according to the sixth embodiment is a combination of an XR glasses main body and a contact lens with a collimating function that is attached to the cornea of ​​the eye.

[0074] 18 is a right side view showing the XR glasses main body 900. Since the XR glasses main body 900 is configured symmetrically, the configuration on the left eye side will be described below.

[0075] As shown in FIG. 18 , in the XR glasses main body 900, a translucent micro LED display 910 for XR glasses is provided integrally with the windshield (not shown) behind a transparent windshield for the left eye that is integrated with the frame 600 as a left-eye display for the XR glasses. In the translucent micro LED display 910 for XR glasses, a pixel array is formed by arranging pixels in a two-dimensional matrix on a flexible, curved, transparent wiring substrate 710. Each pixel has three sub-pixels, each of which has a red-emitting micro LED 720, a green-emitting micro LED 730, and a blue-emitting micro LED 740. These micro LEDs 720, 730, and 740 are all horizontal and have the same structure, shape, and size. The micro LED 720 is an AlGaInN-based LED or an AlGaInP-based LED, and the micro LEDs 730 and 740 are AlGaInN-based LEDs. The pixel size is, for example, 4 to 6 μm square (corresponding to 4000 to 6000 PPI), but is not limited to this.

[0076] Micro LEDs 720, 730, and 740 are shown in Figure 19. As shown in Figure 19, in the micro LEDs 720, 730, and 740, a light-emitting layer 752 and a p-type semiconductor layer 753 are sequentially stacked on an n-type semiconductor layer 751, with the exception of a portion of the layer. P-side electrodes 754 made of four metals are provided in a row on the p-type semiconductor layer 753, and an n-side electrode 755 made of metal is provided on a portion of the n-type semiconductor layer 751 adjacent to the light-emitting layer 752 and the p-type semiconductor layer 753. The micro LEDs 720, 730, and 740 may have semiconductor layers other than the n-type semiconductor layer 751, the light-emitting layer 752, and the p-type semiconductor layer 753, as necessary. In the micro LEDs 730 and 740, the n-type semiconductor layer 751 is an n-type GaN layer, the p-type semiconductor layer 753 is a p-type GaN layer, and the light-emitting layer 752 is an InN barrier layer. x Ga 1-x In as N layer and well layer y Ga 1-y In layers and N layers are alternately stacked. x Ga 1-x N / In y Ga 1-y The micro LED 720 has an N multiple quantum well (MQW) structure (x<y, 0≦x<1, 0≦y<1), and the In composition ratios x and y are selected according to the green or blue emission wavelength. When the micro LED 720 is an AlGaInN-based LED, its n-type semiconductor layer 751, light-emitting layer 752, and p-type semiconductor layer 753 have structures similar to those of the micro LEDs 730 and 740. When the micro LED 720 is an AlGaInP-based LED, the n-type semiconductor layer 751 is an n-type AlGaInP layer, the p-type semiconductor layer 753 is a p-type AlGaInP layer, and the light-emitting layer 752 is an In x Ga 1-x P / In y Ga 1-y The micro LED chips 720, 730, and 740 have a P MQW structure, and the In composition ratios x and y are selected according to the red emission wavelength. The p-side electrode 754 and the n-side electrode 755 are at the same height. Although not shown, Sn films are provided on the p-side electrode 754 and the n-side electrode 755 to be used when mounting the micro LED chips 720, 730, and 740 on the wiring substrate 710.

[0077] As shown in FIG. 18 , a control circuit unit 610 for controlling the operation of the translucent micro LED display 900 is provided on the left ear hook portion 600a of the frame 600, surrounding the outer periphery of the ear hook portion 600a. Flexible wiring 620 is provided on the side of the ear hook portion 600a. The flexible wiring 620 connects the control circuit unit 610 to the translucent micro LED display 910 for the XR glasses. The windshield portion, excluding the portion corresponding to the translucent micro LED display 910 for the XR glasses, can be used as a wiring area. A battery (such as a lithium ion battery) used as a power source is attached to any part of the frame 600 (e.g., the ear hook portion 600a, etc.), but this is not limitative. Bulky power sources and complex control circuits may be connected to the main body (frame 600) via a separate base, such as a neck strap. A nose pad 630 is provided on the nose side of the frame 600. If necessary, a left-eye sensor may be provided on the frame 600, for example, directly above the windshield portion. The left eye sensor includes, for example, one or more of a left eye imaging element (such as a CMOS image sensor or CCD), LiDAR, an illuminance sensor, an acceleration sensor, a gyro sensor, a geomagnetic sensor, a near-infrared camera for eye tracking, etc.

[0078] Figures 20A, 20B, 20C and 20D show a contact lens 1000 with a collimating function, with Figures 20A and 20B being a plan view and a cross-sectional view, respectively, of the contact lens 1000 with a collimating function, and Figures 20C and 20D being a plan view and a side view, respectively, of a transparent pillar 1100 of the transparent pillar assembly that constitutes the contact lens 1000 with a collimating function.

[0079] As shown in FIGS. 20A and 20B, the collimating contact lens 1000 has an overall bowl-shaped curved shape that corresponds to the curvature of the surface of the cornea.

[0080] In the center of the collimating contact lens 1000, a large number of transparent pillars 1100 in the shape of a regular hexagonal truncated pyramid as shown in Figures 20C and 20D are arranged in a honeycomb pattern with their sides in close contact with each other to form a transparent pillar assembly. The curved outer and inner surfaces of the collimating contact lens 1000 are smoothly formed. The diagonal length of the outer surface of the transparent pillar 1100 is D Outer , the diagonal length on the inner surface is D Inner Then, D Outer >D Inner is.

[0081] As shown in Figure 20B, the light passing through each transparent pillar 1100 constituting this transparent pillar assembly is configured to converge to a single point (convergence point). The convergence point at which the light passing through each transparent pillar 1100 converges is set to be near the center of the crystalline lens 120 when this collimating contact lens 1000 is attached to the cornea 130.

[0082] Collimating contact lens 1000 is configured so that the radiation angle of light from each transparent pillar 1100 is within 5 degrees. As shown in Figures 20C and 20D, if the diagonal length of transparent pillar 1100 is D, its length is L, and half the radiation angle is θ / 2, then, for example, if D = 4 μm and L = 92 μm, then light with a radiation angle θ of within 5 degrees (±2.5 degrees) will pass through this collimating contact lens 1000.

[0083] The transparent material of the collimating contact lens 1000 is, for example, thermoplastic acrylic resin (PMMA) or polycarbonate (PC) resin, and the light absorbing film on the side of the transparent column 1100 can be made of black color resist or a material made by mixing carbon black with thermoplastic resin.

[0084] To achieve a radiation angle of 5 degrees or less, the aspect ratio of the transparent pillars 1100 that serve as collimators must be increased to approximately 23 or greater, making it difficult to form them all at once. Therefore, for example, as shown in FIG. 21A , a flat, stretchable transparent layer 1200 is formed, which includes a transparent pillar assembly consisting of regular hexagonal transparent pillars 1100 with sidewalls formed of a light-absorbing film (not shown). This is then stacked in multiple layers (three in this example) as shown in FIG. 21B to form a thick film of transparent pillar assembly with a collimating function that is thick enough to achieve a radiation angle of 5 degrees or less. This thick film is cut into a disk-shaped shape of an appropriate size for a contact lens and then heated and molded to form a curve. This state is shown in FIG. 21C . This process results in the opening area of ​​the transparent pillar assembly being wider on the outside of the curved surface and narrower on the inside. The radius of curvature of this curvature can be adjusted to adjust the convergence point of light passing through the transparent pillar assembly. To position the convergence point near the center of the crystalline lens, the radius of curvature is set to approximately the distance between the surface of the cornea 130 and the center of the crystalline lens 120. If the curved shape of the thick film differs from the shape of the cornea 130, the excess portion of the inner curved surface of the thick film is ground to fit the shape of the cornea 130, as shown in Figure 21D. Grinding of the outer curved surface is not necessary if the curvature is the same as that of the cornea 130, but Figure 21D shows the case where grinding of the outer curved surface has been performed. In this way, the collimating contact lens 1000 is manufactured. If necessary, the outer periphery of the collimating contact lens 1000 is chamfered, as shown in Figure 21E. Figure 22 shows the state in which the collimating contact lens 1000 shown in Figure 21E is worn on the cornea 130.

[0085] FIG. 23 shows the state when the XR glasses are configured by placing the XR glasses main body 900 in front of the user's eyes and placing the collimating contact lens 1000 on the cornea 130.

[0086] [Operation of XR Glasses] As shown in Figure 24, light from the pixels of the translucent micro LED display 910 for XR glasses has a large radiation angle due to the absence of a collimator, but when it enters the collimating contact lens 1000, the radiation angle is narrowed to within 5 degrees, so that light from adjacent pixels does not significantly mix with each other and forms an image on the retina. As shown in Figure 24, even when the gaze is directed downward and the eyeball 110 rotates, the light from the pixels of the translucent micro LED display 910 for XR glasses has a large radiation angle, and light with an angle that can enter the pupil is present over a wide range, so a wide eyebox can be maintained.

[0087] According to the XR glasses of the sixth embodiment, even when a collimator-less translucent micro LED display 910 for XR glasses is used, the collimating contact lens 1000 can narrow the light emission angle from the pixels to substantially 5 degrees or less, thereby enabling images to be displayed with sufficient resolution. In addition, as with the first embodiment, these XR glasses can also alleviate eye strain, myopia, and axial myopia. That is, because the collimating contact lens 1000 does not provide vision correction through lens functions, even healthy individuals without eye disorders such as myopia or presbyopia can use it in their daily lives as a pan-focus contact lens that provides clear, blur-free vision from long distances to very close distances. Furthermore, since overuse of the ciliary muscle is reduced even when viewing close-up objects, eye strain, myopia, and axial myopia can be alleviated. Furthermore, if the material of the collimating contact lens 1000 is given UV protection, it can also prevent UV-induced eye diseases (such as UV keratitis and pinguecula).

[0088] Although the embodiments of the present invention have been specifically described above, the present invention is not limited to the above-described embodiments, and various modifications based on the technical concept of the present invention are possible.

[0089] For example, the numerical values, configurations, shapes, materials, methods, etc. given in the above-described embodiments are merely examples, and different numerical values, configurations, shapes, materials, methods, etc. may be used as needed.

[0090] 10 Frame 20 Housing for left eye 30 Transparent pillar assembly 31 Transparent pillar 32 Micro magnet 40 Liquid 50 Eye tracking sensor 60 Transparent layer 70 Coil array substrate 71 Micro coil 80 Control circuit section 170 Sensor section for left eye 200 Proximity display 210 Substrate 220 Red light emitting section 230 Green light emitting section 240 Blue light emitting section 300 Concave lens 400 Convex lens 500 Lens 900 XR glasses main body 910 Translucent micro LED display for XR glasses 1000 Contact lens with collimation function 1100 Transparent pillar

Claims

1. Pan-focus eyeglasses comprising: transparent left-eye and right-eye housings formed integrally with a frame; a transparent column assembly housed movably inside the left-eye and right-eye housings, respectively; and at least one eye tracking sensor attached to each of the left-eye and right-eye housings, wherein the transparent column assembly is configured to have an array of transparent columns that act as collimators with a radiation angle of 5 degrees or less and a transmittance of 50% or more for incident light, and to cause light that has passed through each transparent column to converge to a convergence point; and having the function of moving the transparent column assembly inside the left-eye and right-eye housings to face the pupil in response to the result of detection of the position of the pupil of a user's eye by the eye tracking sensor, so that the convergence point is located either on the surface or inside of the cornea, the pupil, the surface or inside of the crystalline lens, or inside the eyeball.

2. The pan-focus glasses according to claim 1, wherein the inside of the left eye housing and the right eye housing are filled with a liquid having a refractive index equal to that of the transparent pillars, and the transparent pillar group is suspended within the liquid.

3. The deep focus glasses according to claim 1, wherein the transparent column assembly is configured to be movable by magnetic or electrical force.

4. Pan-focus glasses as described in claim 3, in which micro-magnets are attached to multiple locations of the transparent column assembly, and multiple micro-coils are attached to at least one of the front and rear surfaces of the left eye housing and the right eye housing so as to be independently drivable.

5. The pan-focus eyeglasses according to claim 4, wherein said plurality of micro-coils are arranged in a two-dimensional array.

6. The deep focus glasses according to claim 1, wherein the micro magnets are attached to at least three points of the transparent column assembly.

7. The pan-focus glasses according to claim 1, wherein the eye tracking sensors are attached to the four corners of the left eye housing and the right eye housing.

8. XR glasses comprising: transparent left-eye and right-eye housings formed integrally with a frame; a transparent column assembly movably stored inside the left-eye and right-eye housings, respectively; at least one eye tracking sensor attached to each of the left-eye and right-eye housings; and an opaque or semi-transparent left-eye display and right-eye display provided on the front surface of the left-eye and right-eye housings, respectively; wherein the transparent column assembly is configured to have a plurality of transparent columns arranged as collimators with a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and to cause light transmitted through each transparent column to converge to a convergence point; and having a function of moving the transparent column assembly inside the left-eye and right-eye housings to face the pupil according to the result of detection of the position of the pupil of the user's eye by the eye tracking sensor, and so that the convergence point is located anywhere on the surface or inside of the cornea, the pupil, the surface or inside of the crystalline lens, and the inside of the eyeball.

9. The XR glasses according to claim 8, wherein the inside of said left eye housing and said right eye housing is filled with a liquid having a refractive index equal to that of said transparent pillars, and said transparent pillar assembly is suspended within said liquid.

10. The XR glasses according to claim 8, wherein said transparent column assembly is configured to be movable by magnetic or electrical force.

11. XR glasses as described in claim 8, wherein micro magnets are attached to a plurality of locations of said transparent column assembly, and a plurality of micro coils are attached to at least one of the front and rear surfaces of said left eye housing and said right eye housing so as to be independently drivable.

12. The XR glasses according to claim 11, wherein said plurality of microcoils are arranged in a two-dimensional array.

13. The XR glasses according to claim 8, wherein said micro magnets are attached to at least three points of said transparent column assembly.

14. The XR glasses of claim 8, wherein the eye tracking sensors are attached to the four corners of the left eye housing and the right eye housing.

15. The XR glasses of claim 8, wherein the left-eye display and the right-eye display are liquid crystal displays, organic electroluminescent displays, or micro light-emitting diode displays.

16. Pan-focus eyeglasses comprising: a left-eye lens or non-lens member and a right-eye lens or non-lens member that are integral with a frame; and a transparent column assembly that is provided on the front or rear surface of the left-eye lens or non-lens member and the front or rear surface of the right-eye lens or non-lens member, respectively; wherein the transparent column assembly is configured to have an array of transparent columns that act as collimators with a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and wherein the light that has passed through each transparent column is converged to a convergence point, and wherein the convergence point is located on the surface or inside of the cornea, the pupil, the surface or inside of the crystalline lens, or inside the eyeball.

17. A contact lens with a collimating function, which has an array of transparent pillars that act as collimators with a radiation angle of 5 degrees or less and a transmittance of 50% or more for incident light, and which is configured so that the light that passes through each transparent pillar converges to a convergence point, and when attached to the cornea, the convergence point is located near the center of the crystalline lens, and which has a bowl-shaped curved shape overall that corresponds to the curvature of the surface of the cornea.

18. XR glasses using contact lenses with a collimating function, which have a transparent pillar assembly in which multiple transparent pillars are arranged as collimators with a radiation angle of 5 degrees or less and a transmittance of 50% or more for incident light, and which are configured so that the light transmitted through each transparent pillar converges to a convergence point, and when attached to the cornea, the convergence point is located near the center of the crystalline lens, and which have a bowl-shaped curved shape overall in accordance with the curvature of the surface of the cornea.

19. XR glasses comprising: an XR glasses main body having a left-eye display section and a right-eye display section each consisting of a semi-transparent micro-light-emitting diode display having a pixel array in which one pixel is composed of at least three or more sub-pixels and one or more micro-light-emitting diodes included in each of the sub-pixels, the aperture ratio of the pixel being 10% or more; and a collimating contact lens having a transparent column assembly in which a plurality of transparent columns are arranged to serve as collimators, the transparent columns having a transmittance of 50% or more and a radiation angle of 5 degrees or less for light emitted from and incident on the pixels of the left-eye display section and the right-eye display section, the light transmitted through each transparent column being converged to a convergence point, the convergence point being configured to be near the center of the crystalline lens when the contact lens is placed on the cornea, and having a bowl-shaped curved shape overall in accordance with the curvature of the surface of the cornea.

Images