Pan focus glasses, XR glasses and pan focus contact lenses

Abstract

To provide pan-focus glasses that dramatically reduce the mixing ratio of light by viewing the outside world through a transparent column assembly that transmits only light within a certain radiation angle, thereby providing a clear field of view with little blur from long distances to very close distances. [Solution] The pan-focus glasses have a housing for the left eye and a housing for the right eye (20), a transparent pillar assembly (30) movable within them, and an eye tracking sensor (50) attached to them. The transparent pillar assembly is configured so that a plurality of transparent pillars (31) are arranged, each with a transmittance of 50% or more and an emission angle of 5 degrees or less for incident light, and light transmitted through each transparent pillar converges to a convergence point. A focusing lens (33, 34) is provided for each of a plurality of adjacent transparent pillars on the light exit side and / or light entrance side, or for each transparent pillar. Depending on the result of detecting the position of the eye's pupil with the eye tracking sensor, the transparent pillar assembly is moved to face the pupil and so that the convergence point is located on the surface or inside of the cornea.

Description

[Technical Field]

[0001] The present invention relates to pan-focus glasses, XR (Cross Reality) glasses, and pan-focus contact lenses. [Background technology]

[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 combine real images captured by an image sensor with virtual images and project them onto a close-up display in front of the eyes, and therefore require lenses to focus the user's eyes on the close-up display, so a certain distance must be maintained between the display and the eyes. Generally, Fresnel lenses or pancake lenses have been replaced with regular convex 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 within a predetermined range. The angle-selective transmission element limits the angle range of the light transmission direction 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 the image on the close-up display, which has the same problems as the VR and MR glasses mentioned above. Furthermore, this head-mounted display is configured in such a way that it is difficult to ensure a sufficiently large eyebox. Another proposed head-mounted display 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 how 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 environment (conditions) in which it can be used are limited. In the case of XR glasses, it will be difficult to widely popularize them unless they are thin and lightweight devices like eyeglasses or sunglasses.

[0005] A collimating contact lens and XR glasses using this collimating contact lens are known (see Patent Document 3). This collimating contact lens has an assembly of transparent pillars arranged in multiple rows, each of which acts as a collimator, with a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and is configured so that light transmitted through each transparent pillar converges to a convergence point, which is located near the center of the crystalline lens when the lens is attached to the cornea. The lens has a bowl-shaped curve overall that corresponds to the curvature of the corneal surface. This collimating contact lens can also be referred to as a pan-focus contact lens. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2022-46404 [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-145607 [Patent Document 3] Patent No. 7475751 Summary of the Invention [Problem to be solved by the invention]

[0007] The problem to be solved by this invention is to provide pan-focus eyeglasses that can dramatically reduce the mixing ratio of light by viewing the outside world through a transparent column assembly that transmits only light within a certain radiation angle instead of normal eyeglass lenses, thereby providing a clear field of view with little blur from long distances to very close distances, and that can be made the same thickness as normal eyeglasses.

[0008] 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 only transmits light within a certain radiation angle, and that can be used to realize VR glasses, MR glasses, etc. that are the same thickness as regular glasses and not bulky.

[0009] Yet another problem that this invention aims to solve is to provide a pan-focus contact lens that can be used in combination with the XR glasses main body to display images with sufficient resolution and can be made sufficiently thin, and XR glasses that use this pan-focus contact lens. [Means for solving the problem]

[0010] In order to solve the above problems, the present invention provides: a transparent left-eye housing and a transparent right-eye housing that are integral with the frame; a transparent column assembly movably housed in the left-eye housing and the right-eye housing, respectively; At least one eye tracking sensor attached to each of the left eye housing and the right eye housing; and The transparent column assembly is configured such that a plurality of transparent columns are arranged to serve as collimators, each of which has a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and the light transmitted through each transparent column is converged to a convergence point; a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, These are pan-focus glasses that have the function of moving the transparent column assembly inside the left eye housing and the right eye housing to face the pupil based on the results of detecting the position of the pupil of the user's eye using the eye tracking sensor, and moving the convergence point so that it is located on the surface or inside of the cornea, the surface or inside of the pupil, the surface or inside of the lens, or inside the eyeball.

[0011] 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 to be filled into the left-eye and right-eye housings is selected as needed, taking into account the material of the transparent pillars that make up the transparent pillar assemblies. Examples of the liquid 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 are 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 faces 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, and examples thereof 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, and examples thereof include black resist.

[0012] By providing a focusing lens for each of a plurality of adjacent transparent columns on the light-exiting side of the transparent column assembly, the spread of light transmitted through each transparent column due to diffraction (diffusion of transmitted light) can be suppressed, thereby reducing the length of each transparent column and therefore the thickness of the transparent column assembly compared to when a focusing lens is not provided. Furthermore, by providing a focusing lens for each of a plurality of adjacent transparent columns on the light-incident side of the transparent column assembly, the light incident on the transparent column assembly can be focused on each transparent column, thereby narrowing the light radiation angle and increasing the amount of light transmitted through each transparent column compared to when a focusing lens is not provided. Specifically, the focusing lens provided for each of a plurality of adjacent transparent columns on the light-exiting side and / or light-incident side of the transparent column assembly is provided in the same shape as the end faces of the adjacent transparent columns so as to cover the entire end faces of these transparent columns. The number of transparent columns may be two or more, but in the most common case, all of the transparent columns are provided. Let n1 be the refractive index of the transparent column assembly, n2 be the refractive index of the liquid filling the left-eye and right-eye housings, n3 be the refractive index of the focusing lens provided on the light-exiting side, and n4 be the refractive index of the focusing lens provided on the light-incident side. n1 ≒ n2, n1 ≦ n3, n4. n3 and n4 may be the same or slightly different and are selected as needed. The focusing lens is formed using a transparent resin or the like using conventionally known techniques.

[0013] The transparent pillar assembly can be configured to be movable by magnetic or electric force. When the transparent pillar assembly is moved by magnetic force, for example, micromagnets are attached to multiple locations on the transparent pillar 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 pillar 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 pillar 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 pillar 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 pillar assembly.

[0014] A near-infrared sensor is typically used as the eye tracking sensor. The eye tracking sensors are typically attached to the four corners of the left-eye and right-eye housings. The eye tracking sensors detect the user's pupils, thereby detecting eye movement, and the transparent column assembly is moved accordingly. The eye tracking sensors may be attached to the outer or inner surfaces of the left-eye and right-eye housings, as needed.

[0015] Here, the radiation angle refers to the angular range from the direction of emission where the light intensity is at its maximum to where that intensity is reduced to half. A radiation angle of 5 degrees or less means that the angular range from the direction of emission where the light intensity is at its maximum (0 degrees) to where the light intensity is reduced to half is within ±2.5 degrees, or a range of 5 degrees or less. To obtain a clear image, it is necessary to narrow the radiation angle of the light passing through each transparent pillar of the transparent pillar assembly. The radiation angle of the light passing through each transparent pillar can be narrowed by increasing the ratio of the length of the transparent pillar to its diameter, i.e., the aspect ratio. The size (especially the thickness) of the transparent pillar assembly must be appropriate for pan-focus glasses. The thinner the thickness of the transparent pillar assembly, the more desirable it is; in the case of these pan-focus glasses, a thickness of at most a few millimeters is desirable. It is possible to increase the aspect ratio by keeping the length of the transparent columns within an appropriate range and reducing their diameter. However, if the diameter of the transparent columns is made too small, the diffraction angle of light passing through the transparent columns increases, negating the effect of increasing the aspect ratio. Furthermore, increasing the aspect ratio of the transparent columns in a transparent column assembly reduces the light transmittance, which may make it difficult to recognize the outside world in dimly lit environments due to the reduced light intensity. To increase the amount of transmitted light, it is effective to install a focusing lens on the light incident side of the transparent column assembly, as described above. Furthermore, as described above, installing a focusing lens on the light exit side of the transparent column assembly can narrow the divergence angle of the emitted light due to light diffraction. By installing a focusing lens on either or both the light incident side and light exit side of the transparent column assembly, it becomes easy to design the transparent column assembly to an appropriate size for pan-focus glasses while ensuring a sufficient aspect ratio and transmitted light intensity to obtain a clear image.

[0016] The present invention also provides: a transparent left-eye housing and a transparent right-eye housing that are integral with the frame; a transparent column assembly movably housed in the left-eye housing and the right-eye housing, respectively; At least one eye tracking sensor attached to each of the left eye housing and the right eye housing; an opaque or semi-transparent left-eye display and a right-eye display provided in front of the left-eye housing and the right-eye housing, respectively; and The transparent column assembly is configured such that a plurality of transparent columns are arranged to serve as collimators, each of which has a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and the light transmitted through each transparent column is converged to a convergence point; a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, The XR glasses have the function of moving the transparent column assembly inside the left eye housing and the right eye housing to face the pupil according to the results of detecting the position of the pupil of the user's eye using the eye tracking sensor, and moving the convergence point so that it is located on the surface or inside of the cornea, the surface or inside of the pupil, the surface or inside of the lens, or inside the eyeball.

[0017] 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). They are video display devices that create a space that provides a simulated experience by blending the real and virtual worlds. AR is a technology that projects a virtual world onto real space, MR is a technology that blends real and virtual spaces, and SR is a technology that overlays past video onto real space, making past events appear as if they are happening right in front of your eyes.

[0018] The left-eye display and right-eye display as proximity displays are, for example, liquid crystal (LCD) displays, organic electroluminescence (EL) displays, micro light-emitting diode (LED) displays, etc. These left-eye display and right-eye display may be provided on the outside or inside of the front parts of the left-eye housing and right-eye housing, respectively, and may be selected as needed.

[0019] In this XR glasses invention, everything else except for the above applies as explained in relation to the above pan-focus glasses invention, unless it is contrary to the nature of the invention.

[0020] The present invention also provides: The transparent pillar assembly has a plurality of transparent pillars arranged as collimators, each of which has a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and the light transmitted through each transparent pillar converges to a convergence point. a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, When placed on the cornea, the convergence point is located near the center of the crystalline lens, and the pan-focus contact lens has an overall bowl-shaped curve that corresponds to the curvature of the corneal surface.

[0021] Typically, the portion (central portion) of this pan-focus contact lens excluding the peripheral portion can be composed of a transparent pillar assembly, for example, a large number of transparent pillars in the shape of a regular hexagonal truncated pyramid, 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 pillar. In this case, if the lens is designed and manufactured so that the convergence point of light passing through each transparent pillar is near the center of the crystalline lens, a sufficiently wide field of view can be ensured. The shape of the outer frame of the transparent pillar assembly can be any shape, such as circular, elliptical, square, rectangular, or polygonal, and can be designed appropriately according to specifications (such as product design).

[0022] When wearing these pan-focus contact lenses, the amount of light entering the eye is reduced, but vision is clear from far away to very close. Because they can simultaneously correct both farsightedness and nearsightedness, they can also be used as contact lenses in everyday life. Pan-focus contact lenses can also be made by adding a collimating function to contact lenses with normal lens functions (shapes).

[0023] In this pan-focus contact lens, as with pan-focus eyeglasses, the thinner the transparent pillar assembly, the more desirable, but in the case of this pan-focus contact lens, a thickness of 0.3 mm or less is desirable. Furthermore, by installing a focusing lens on either or both of the light entrance side and light exit side of the transparent pillar assembly as described above, it becomes easy to design the transparent pillar assembly to an appropriate size as a pan-focus contact lens while ensuring a sufficient aspect ratio and transmitted light amount to obtain a clear image.

[0024] In the invention of this pan-focus contact lens, everything else except for the above applies as described in relation to the invention of the pan-focus eyeglasses, unless it is contrary to the nature of the invention.

[0025] The present invention also provides: The transparent pillar assembly has a plurality of transparent pillars arranged as collimators, each of which has a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and the light transmitted through each transparent pillar converges to a convergence point. a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, These XR glasses use pan-focus contact lenses that are configured so that when attached to the cornea, the convergence point is near the center of the lens, and have an overall bowl-shaped curve that corresponds to the curvature of the corneal surface.

[0026] In this XR glasses invention, anything other than the above applies as described in relation to the above XR glasses invention, pan focus eyeglasses invention and pan focus contact lens invention, unless it is contrary to the nature of the invention.

[0027] The present invention also provides: an XR glasses main body having a left-eye display unit and a right-eye display unit each consisting of a translucent micro light-emitting diode display having a pixel array in which one pixel is configured by 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; 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 pixels of the left-eye display section and the right-eye display section, the light having passed through each transparent column being converged to a convergence point; a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, A pan-focus contact lens is configured so that the convergence point is located near the center of the crystalline lens when attached to the cornea, and has a bowl-shaped curved shape as a whole in accordance with the curvature of the surface of the cornea; These are XR glasses that have the following features.

[0028] In these XR glasses, when the pan-focus contact lens is attached to the cornea and the XR glasses main body is attached in front of the eye, light from the micro light-emitting diode enters one end of the transparent column of the pan-focus contact lens and exits from the other end, allowing light with an emission angle of 5 degrees or less to enter the crystalline lens.

[0029] The translucent micro light-emitting diode display preferably has sufficient brightness (maximum brightness of approximately 5,000 to 10,000 nits) compared to ambient light so that images can be clearly recognized even in bright ambient light. The pixel aperture ratio (the ratio of the pixel area through which external visible light can pass) must be at least 10% or more to constitute a translucent micro light-emitting diode display, but is preferably 40% or more. This allows the external environment to be clearly recognized through the translucent micro light-emitting diode display. In one example, a single pixel includes a red-emitting micro light-emitting diode, a green-emitting micro light-emitting diode, and a blue-emitting micro light-emitting diode to realize the three primary colors of red (R), green (G), and blue (B). In one example, these micro light-emitting diodes are each covered with a transparent resin that transmits visible light, and the surface of the transparent resin is covered with a light-reflecting film configured to reflect light toward the inside of the opening. In another example, a single pixel is composed solely of multiple blue-emitting or ultraviolet-emitting micro light-emitting diodes. Typically, these micro LEDs are covered with red phosphors, green phosphors or blue phosphors, and the surfaces of the red phosphors, green phosphors or blue phosphors are covered with light-reflecting films configured to reflect light toward the inside of the openings. In this case, the light from the blue-emitting or ultraviolet-emitting micro LEDs passes through the red phosphors, green phosphors or blue phosphors to undergo wavelength conversion, thereby realizing the three primary colors of red (R), green (G) and blue (B).

[0030] Typically, the number of micro LEDs included in one sub-pixel is three or more, or one micro LED has at least one n-side electrode and at least three or more p-side electrodes. Typically, one sub-pixel has a main wiring for the n-side electrode and a main wiring for the p-side electrode, and the main wiring for the p-side electrode has at least three or more branch wirings.

[0031] The red light-emitting micro light-emitting diode, the green light-emitting micro light-emitting diode and the blue light-emitting micro light-emitting diode can all be AlGaInN micro light-emitting diodes, the green light-emitting micro light-emitting diode and the blue light-emitting micro light-emitting diode can be AlGaInN micro light-emitting diodes, and the red light-emitting micro light-emitting diode can be AlGaInP micro light-emitting diodes. These micro light-emitting diodes can be horizontal or vertical.

[0032] This translucent micro light-emitting diode display is typically constructed to be flexible. Specifically, a flexible translucent micro light-emitting diode display can be obtained by using a wiring substrate in which wiring is formed on a substrate made of transparent plastic such as polyethylene terephthalate, polyethylene naphthalate, or polycarbonate, and forming a pixel array on the wiring substrate.

[0033] In this XR glasses invention, anything other than the above applies as described in relation to the above XR glasses invention, pan focus eyeglasses invention and pan focus contact lens invention, unless it is contrary to the nature of the invention. [Effects of the Invention]

[0034] The pan-focus glasses of this invention allow the user 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, while still being the same thickness as normal glasses.

[0035] 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 and MR glasses that are as thin as regular glasses and not bulky in shape.

[0036] The pan-focus 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. When worn on the cornea, this allows a clear image of any point to be formed on the retina from long distances to close distances, while still allowing for a sufficiently small thickness. Furthermore, by combining this pan-focus 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. [Brief explanation of the drawings]

[0037] [Figure 1] 1 is a left side view showing deep focus glasses according to a first embodiment of the present invention. [Figure 2] 1 is a front view showing a left-eye housing of deep focus glasses according to a first embodiment of the present invention. [Figure 3A] 1 is a plan view showing a transparent column assembly included inside a left-eye housing of deep focus glasses according to a first embodiment of the present invention. FIG. [Figure 3B] 1 is a cross-sectional view showing a transparent column assembly included inside a left-eye housing of deep focus glasses according to a first embodiment of the present invention. [Figure 3C] 1 is a plan view showing transparent pillars constituting a transparent pillar assembly contained inside a left-eye housing of deep focus glasses according to a first embodiment of the present invention. FIG. [Figure 3D] 1 is a side view showing transparent pillars constituting a transparent pillar assembly contained inside a left-eye housing of deep focus glasses according to a first embodiment of the present invention. FIG. [Figure 3E] This is a side view showing a state in which focusing lenses are provided on the light exit side and light entrance side of the transparent pillars that make up the transparent pillar assembly contained inside the left eye housing of the pan-focus glasses according to the first embodiment of the present invention. [Figure 4A] 4A to 4C are cross-sectional views illustrating a method for manufacturing a transparent column assembly included inside a left-eye housing of the deep focus glasses according to the first embodiment of the present invention. [Figure 4B] 4A to 4C are cross-sectional views illustrating a method for manufacturing a transparent column assembly included inside a left-eye housing of the deep focus glasses according to the first embodiment of the present invention. [Figure 4C] 4A to 4C are cross-sectional views illustrating a method for manufacturing a transparent column assembly included inside a left-eye housing of the deep focus glasses according to the first embodiment of the present invention. [Figure 4D] 4A to 4C are cross-sectional views illustrating a method for manufacturing a transparent column assembly included inside a left-eye housing of the deep focus glasses according to the first embodiment of the present invention. [Figure 4E] 4A to 4C are cross-sectional views illustrating a method for manufacturing a transparent column assembly included inside a left-eye housing of the deep focus glasses according to the first embodiment of the present invention. [Figure 4F] 4A to 4C are cross-sectional views illustrating a method for manufacturing a transparent column assembly included inside a left-eye housing of the deep focus glasses according to the first embodiment of the present invention. [Figure 5] 3 is a schematic diagram showing an example of wiring of a minute coil array of a magnetic field generating coil array substrate 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. [Figure 6] 1 is a schematic diagram showing a state in which a user is wearing deep focus glasses according to a first embodiment of the present invention. [Figure 7] 1 is a schematic diagram showing a state in which a user wearing deep focus glasses according to a first embodiment of the present invention has their eyes turned downward and their eyes rotated; [Figure 8] 8 is a front view showing the 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. [Figure 9] FIG. 10 is a left side view showing XR glasses according to a second embodiment of the present invention. [Figure 10]10 is a schematic diagram showing a state in which a user wears XR glasses according to a second embodiment of the present invention. FIG. [Figure 11] FIG. 10 is a left side view showing XR glasses according to a third embodiment of the present invention. [Figure 12] 10 is a schematic diagram showing a state in which a user wears XR glasses according to a third embodiment of the present invention. FIG. [Figure 13] FIG. 10 is a left side view showing deep focus glasses according to a fourth embodiment of the present invention. [Figure 14] FIG. 10 is a schematic diagram showing a state in which a user wears deep focus glasses according to a fourth embodiment of the present invention. [Figure 15] FIG. 10 is a left side view showing deep focus glasses according to a fifth embodiment of the present invention. [Figure 16] FIG. 10 is a schematic diagram showing a state in which a user is wearing deep focus glasses according to a fifth embodiment of the present invention. [Figure 17] FIG. 13 is a right side view showing the main body of the XR glasses according to the sixth embodiment of the present invention. [Figure 18] FIG. 13 is a perspective view showing a horizontal micro LED used in a translucent micro LED display for XR glasses in the main body of the XR glasses according to the sixth embodiment of the present invention. [Figure 19A] FIG. 10 is a plan view showing a pan-focus contact lens of XR Glasses according to a sixth embodiment of the present invention. [Figure 19B] FIG. 10 is a cross-sectional view showing an XR Glasses pan-focus contact lens according to a sixth embodiment of the present invention. [Figure 19C] FIG. 10 is a plan view showing the transparent pillars that constitute the pan-focus contact lens of XR glasses according to the sixth embodiment of the present invention. [Figure 19D] FIG. 10 is a side view showing the transparent pillars that constitute the pan-focus contact lens of XR glasses according to the sixth embodiment of the present invention. [Figure 19E]This is a side view showing the state in which focusing lenses are provided on the light exit side and light entrance side of the transparent pillar that constitutes the pan-focus contact lens of XR glasses according to the sixth embodiment of the present invention. [Figure 20A] 10A to 10C are cross-sectional views illustrating a manufacturing method of a pan-focus contact lens of XR Glasses according to a sixth embodiment of the present invention. [Figure 20B] 10A to 10C are cross-sectional views illustrating a manufacturing method of a pan-focus contact lens of XR Glasses according to a sixth embodiment of the present invention. [Figure 20C] 10A to 10C are cross-sectional views illustrating a manufacturing method of a pan-focus contact lens of XR Glasses according to a sixth embodiment of the present invention. [Figure 20D] 10A to 10C are cross-sectional views illustrating a manufacturing method of a pan-focus contact lens of XR Glasses according to a sixth embodiment of the present invention. [Figure 20E] 10A to 10C are cross-sectional views illustrating a manufacturing method of a pan-focus contact lens of XR Glasses according to a sixth embodiment of the present invention. [Figure 20F] 10A to 10C are cross-sectional views illustrating a manufacturing method of a pan-focus contact lens of XR Glasses according to a sixth embodiment of the present invention. [Figure 21] FIG. 13 is a schematic diagram showing a state in which a user wears an XR Glasses pan-focus contact lens according to a sixth embodiment of the present invention on the cornea. [Figure 22] 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. FIG. [Figure 23] 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. FIG. [Figure 24] FIG. 13 is a side view showing a transparent column assembly included inside a left-eye housing of deep focus glasses according to a seventh embodiment of the present invention. [Figure 25] 13 is a side view showing a transparent column assembly included inside a left-eye housing of deep focus glasses according to an eighth embodiment of the present invention. FIG. [Figure 26]FIG. 13 is a side view showing a transparent column assembly contained inside a left-eye housing of deep focus glasses according to a ninth embodiment of the present invention. [Figure 27] 13 is a side view showing a transparent column assembly included inside a left-eye housing of deep focus glasses according to a tenth embodiment of the present invention. FIG. [Figure 28] 12 is a side view showing a transparent column assembly included inside the left-eye housing of deep focus glasses according to the eleventh embodiment of the present invention. FIG. [Figure 29] 12 is a side view showing a transparent column assembly included inside the left eye housing of deep focus glasses according to the twelfth embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0038] Hereinafter, modes for carrying out the invention (hereinafter referred to as "embodiments") will be described.

[0039] First Embodiment [Deep focus glasses] 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 on the left eye side will be described below.

[0040] 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 as needed from among the materials listed above. 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. 1 and 2, eye tracking sensors 50 are attached to the four corners of the inside of the rear surface of the left-eye housing 20. The eye tracking sensors 50 are near-infrared sensors that can detect the position of the pupils. Note that, as indicated by the dashed dotted lines in FIG. 1, the eye tracking sensors 50 may also be attached to the four corners of the rear surface of the left-eye housing 20.

[0041] 3A, 3B, 3C and 3D show a transparent column assembly 30, with FIGS. 3A and 3B being a plan view and a cross-sectional view of the transparent column assembly 30, respectively, and FIGS. 3C and 3D being a plan view and a side view of a transparent column 31 serving as a collimator of the transparent column assembly 30, respectively.

[0042] 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 micro-magnets 32 are attached to penetrate through this outer periphery at four locations. In Figure 3B, the magnetic poles of the micro-magnets 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 is, for example, 0.1 to 0.5 mm, but is not limited to these.

[0043] 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, 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.

[0044] As shown in Figure 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.

[0045] 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 5 degrees or less. 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.

[0046] 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 amount of transmitted light decreases as the radiation angle of light narrows, it is desirable that the radiation angle θ of the light passing through each transparent column 31 be 0.1 degrees or more.

[0047] As shown in Figures 1, 3B, and 3E, tiny lenses 33 and 34 for focusing light are provided for each transparent pillar 31 on the light-exiting and light-incident sides of the transparent pillar assembly 30. The lens 33 provided on the light-exiting end face of each transparent pillar 31 is a convex lens with the same planar shape as the end face. Similarly, the lens 34 provided on the light-incident end face of each transparent pillar 31 is a convex lens with the same planar shape as the end face. The lens 34 provided on the light-exiting end face of each transparent pillar 31 can suppress the spread of light transmitted through each transparent pillar 31 due to diffraction. Furthermore, the lens 33 provided on the light-exiting end face of each transparent pillar 31 can focus light incident on the transparent pillar assembly 30 for each transparent pillar 31, thereby narrowing the light radiation angle and increasing the amount of light transmitted through each transparent pillar 31. Alternatively, the amount of transmitted light can be increased without increasing the radiation angle of the transmitted light through the transparent pillar 31, in other words, without reducing the aspect ratio of the transparent pillar 31. The lenses 33 and 34 are formed from a transparent resin or the like using a conventionally known technique.

[0048] 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.

[0049] 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 it difficult to fabricate them all at once. Therefore, as shown in FIG. 4A, for example, a flat, stretchable transparent layer 60 is formed, which includes a transparent column assembly consisting of regular hexagonal transparent columns 31 with sidewalls made 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 sufficient thickness to achieve a radiation angle of 5 degrees or less and with collimating function. The thick film is 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 and narrower on the inside of the curved surface. 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 pillar assembly 30 is chamfered as shown in FIG. 4E. After this, four through-holes are formed on the outer periphery of the transparent pillar assembly 30, and micro-magnets 32 are inserted and fixed into these through-holes. Then, as shown in FIG. 4F, lenses 33 and 34 are formed for each transparent pillar 31 on the light-emitting and light-incident sides of the transparent pillar assembly 30, respectively, using a conventionally known technique. In this way, the desired transparent pillar assembly 30 is manufactured.

[0050] 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 spacings 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 pillar assembly 30 allows the transparent pillar assembly 30 to be moved within the liquid 40, and its position, angle, etc. can be adjusted. In this way, by controlling the magnetic force acting on the four micromagnets 32 in the transparent pillar assembly 30 by selecting the microcoil 71, the transparent pillar assembly 30 can be easily moved to a desired position and orientation.

[0051] FIG. 6 shows the pan-focus glasses 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.

[0052] 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 equipped 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 a location on the frame 10 (e.g., the ear hook portion), but this is not a limitation. Bulky components such as the power source and complex control circuitry 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.

[0053] [Deep focus glasses in action] 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 and is focused by the lenses 34 attached to the light-incident end faces of each transparent column 31. The radiation angle is narrowed to substantially 5 degrees or less by each transparent column 31. The lenses 33 attached to the light-exit end faces of each transparent column 31 prevent light from spreading due to diffraction as it passes through 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 gaze is directed downward and the eyeball 110 has rotated, as compared to FIG. 6 . Even if the gaze is directed downward and the eyeball 110 rotates, as shown in FIG. 7 , 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-coils 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, it can be seen that 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.

[0054] As described above, the pan-focus glasses according to the first embodiment allow the user to view 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 dramatically 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, and maintaining a wide eye box. Furthermore, tiny focusing lenses 33 and 34 are provided for each transparent column 31 on the light-exiting and light-incident sides of the transparent column assembly 30, respectively. This allows the light entering the transparent column assembly 30 to be focused on each transparent column 31, thereby increasing the amount of light passing through each transparent column 31 and preventing the light passing through each transparent column 31 from being diffused due to diffraction. This allows the pan-focus glasses to be made the same thickness as regular eyeglasses.

[0055] 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 increase in the number of people suffering from eye strain and myopia. It is said that the increased time spent focusing on close distances (20 cm to 1.5 m) can lead to eye strain due to overwork of the ciliary muscles, as well as myopia and axial myopia due to deformation of the eyeball and elongation of the eye axis to facilitate close focus. 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 within a certain value. For example, if the radiation angle of the transmitted light from 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 equal 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. Bringing the object closer to the eyes increases its proportion of the visual field, 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).

[0056] Second Embodiment [XR Glasses] 9 is a left side view showing the XR glasses according to the second embodiment. Since the XR glasses are configured symmetrically, the configuration on the left eye side will be explained below.

[0057] As shown in FIG. 9, these XR glasses have a proximity display 200 mounted on the inner surface of the front of the 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 has a two-dimensional array of pixels on an opaque or translucent substrate 210, each of which is composed of three subpixels: 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, alignment film, liquid crystal, and 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 mounted adjacent to a control circuit unit 80 on the side or front of the frame 10. The left-eye sensor unit 170 includes, 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, and an infrared sensor. When an infrared sensor is used, it can be seen even 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.

[0058] 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 of θ≦2.0 degrees, that is, L / D Outer ≧57.3. The narrower the angle θ, the better the pan-focus performance, and the problem of inconsistency between the convergence angle and focal length, which is often an issue with VR glasses, can be alleviated. However, since narrowing the angle θ also reduces the amount of light that passes through the transparent column 31, it is desirable for the angle θ to be 0.1 degrees or greater.

[0059] Other than the above, the XR glasses are the same as the pan-focus glasses according to the first embodiment.

[0060] Figure 10 shows how the XR glasses look when worn by a user.

[0061] [XR Glasses Operation] 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 the 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 the light transmitted through the transparent column assembly 30 passes through the pupil 150. This allows a wide eyebox to be maintained.

[0062] 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 extremely close distance compared to 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.

[0063] Third Embodiment [XR Glasses] 11 is a left side view showing the XR glasses according to the third embodiment. Since the XR glasses are configured symmetrically, the configuration of the left eye side will be explained below.

[0064] 11, in the XR glasses according to the second embodiment, the proximity display 200 is provided on the inner surface of the front part of the left-eye housing 20, whereas in the XR glasses according to the second embodiment, the proximity display 200 is provided on the outer surface of the front part of the left-eye housing 20. Other aspects of the XR glasses according to the second embodiment are the same as those of the XR glasses according to the second embodiment.

[0065] Figure 12 shows how the XR glasses look when worn by a user.

[0066] [XR Glasses Operation] The operation of these XR glasses is the same as that of the XR glasses according to the second embodiment.

[0067] The XR glasses according to the third embodiment can provide the same advantages as the XR glasses according to the second embodiment.

[0068] <Fourth embodiment> [Deep focus glasses] 13 is a left side view showing pan-focus glasses according to the fourth embodiment. Since the pan-focus glasses are configured symmetrically, the configuration for the left eye side will be described below.

[0069] 13, in these pan-focus glasses, a concave lens 300 curved to follow the left-eye casing 20 is provided on the front surface of the left-eye casing 20, which is similar to the pan-focus glasses according to the first embodiment. Other than the above, these pan-focus glasses are the same as the pan-focus glasses according to the first embodiment.

[0070] Figure 14 shows what the pan-focus glasses will look like when worn by a user. As shown in Figure 14, 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 upward, 70 degrees downward, 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.

[0071] [Deep focus glasses in action] The operation of these pan-focus glasses is similar to that of the pan-focus glasses of 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.

[0072] 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 pillar 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.

[0073] Fifth Embodiment [Deep focus glasses] 15 is a left side view showing pan-focus glasses according to the fifth embodiment. Since the pan-focus glasses are configured symmetrically, the configuration on the left eye side will be described below.

[0074] 15, in these pan-focus glasses, a convex lens 400 curved to follow the left-eye casing 20 is provided on the front surface of the left-eye casing 20, which is similar to the pan-focus glasses according to the first embodiment. Other than the above, these pan-focus glasses are the same as the pan-focus glasses according to the first embodiment.

[0075] Figure 16 shows what the pan-focus glasses look like when worn by a user. As shown in Figure 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 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.

[0076] [Deep focus glasses in action] The operation of these pan-focus glasses is similar to that of the pan-focus glasses of 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 convex lens 400.

[0077] According to the pan-focus glasses of the fifth embodiment, by combining a left-eye housing 20 and a right-eye housing having a transparent pillar 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.

[0078] Sixth Embodiment [XR Glasses] The XR glasses according to the sixth embodiment are a combination of an XR glasses main body and a pan-focus contact lens that is fitted to the cornea of ​​the eye.

[0079] 17 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.

[0080] As shown in FIG. 17 , in the XR glasses main body 900, a translucent micro LED display 910 for XR glasses is provided integrally with a transparent windshield (not shown) for the left eye, which is integrated with the frame 600, behind the windshield as a display unit for the left eye of 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. One 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.

[0081] Micro LEDs 720, 730, and 740 are shown in Figure 18. As shown in Figure 18, 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 n-type semiconductor layer 751. 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 In barrier layer. x Ga 1-x In as N-layer and well layer y Ga 1-y In and N layers are stacked alternately. x Ga 1-x N / In y Ga 1-yHas a multi - 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 emission wavelengths of green or blue light. 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 the same structure as 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 In x Ga 1-x P / In y Ga 1-y Has a P MQW structure, and the In composition ratios x and y are selected according to the emission wavelength of red light. The p - side electrode 754 and the n - side electrode 755 are at the same height as each other. Although not shown in the figure, on the p - side electrode 754 and the n - side electrode 755, there is provided a Sn film used when mounting the micro - LED chips 720, 730, 740 on the wiring board 710.

[0082] As shown in FIG. 17 , a control circuit unit 610 for controlling the operation of the translucent micro LED display 900 is provided on the left ear hook 600a of the frame 600, surrounding the outer periphery of the ear hook 600a. A flexible wiring 620 is provided on the side of the ear hook 600a. The flexible wiring 620 connects the control circuit unit 610 to the translucent micro LED display 910 for the XR glasses. The windshield, 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 600a, etc.), but this is not limiting. Bulky components such as the power source and complex control circuitry 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. 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, and a near-infrared camera for eye tracking.

[0083] Figures 19A, 19B, 19C and 19D show a pan-focus contact lens 1000, with Figures 19A and 19B being a plan view and a cross-sectional view, respectively, of the pan-focus contact lens 1000, and Figures 19C and 19D being a plan view and a side view, respectively, of a transparent pillar 1100 of the transparent pillar assembly that constitutes the pan-focus contact lens 1000.

[0084] As shown in Figures 19A and 19B, the pan-focus contact lens 1000 has an overall bowl-shaped curved shape that corresponds to the curvature of the surface of the cornea.

[0085] In the center of the pan-focus contact lens 1000, a large number of transparent pillars 1100 in the shape of a regular hexagonal truncated pyramid are arranged in a honeycomb pattern with their sides in close contact with each other, as shown in Figures 19C and 19D, to form a transparent pillar assembly. The curved outer and inner surfaces of the pan-focus contact lens 1000 are smoothly formed. The diagonal length of the outer surface of the transparent pillars 1100 is D Outer , the diagonal length on the inner surface is D Inner Then, D Outer >D Inner is.

[0086] 19B, 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 where the light passing through each transparent pillar 1100 converges is set to be near the center of the crystalline lens 120 when this pan focus contact lens 1000 is attached to the cornea 130.

[0087] The pan-focus 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 19C and 19D, if the diagonal length of the transparent pillar 1100 is D, the 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 pan-focus contact lens 1000.

[0088] 19B and 19E, minute lenses 33, 34 for converging light are provided for each transparent pillar 31 on the light exit side and light entrance side of the pan focus contact lens 1000. The functions and details of these lenses 33, 34 are as explained in the first embodiment.

[0089] The transparent material of the pan-focus 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.

[0090] 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 fabricate them all at once. Therefore, for example, as shown in FIG. 20A, a flat, stretchable transparent layer 1200 is formed, which includes a transparent pillar assembly consisting of regular hexagonal transparent pillars 1100 with sidewalls made of a light-absorbing film (not shown). This layer is then stacked in multiple layers (three in this example) as shown in FIG. 20B to form a thick film of transparent pillar assembly with sufficient thickness to achieve a radiation angle of 5 degrees or less and with collimating function. 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. 20C. This process results in the aperture area of ​​the transparent pillar assembly being wider on the outside and narrower on the inside of the curved surface. The convergence point of light passing through the transparent pillar assembly can be adjusted by the radius of curvature of the curvature. 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 curvature 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 FIG. 20D. Grinding of the outer curved surface is unnecessary if the curvature is the same as that of the cornea 130, but FIG. 20D shows a case where grinding of the outer curved surface has been performed. If necessary, the outer periphery of the pan-focus contact lens 1000 is chamfered as shown in FIG. 20E. Then, as shown in FIG. 20F, lenses 33 and 34 are formed for each transparent column 31 on the light-exiting and light-incident sides of the pan-focus contact lens 1000 using a conventionally known technique. In this way, the desired pan-focus contact lens 1000 is manufactured. FIG. 21 shows the pan-focus contact lens 1000 shown in FIG. 20F fitted to the cornea 130.

[0091] FIG. 22 shows the state when the user wears the XR glasses main body 900 in front of the eyes and the pan focus contact lens 1000 is attached to the cornea 130 to form the XR glasses.

[0092] [XR Glasses Operation] As shown in Figure 22, 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 pan focus contact lens 1000, the radiation angle is narrowed to within 5 degrees, so that light from adjacent pixels does not mix significantly with each other and forms an image on the retina. As shown in Figure 23, even when the gaze is directed downward and the eyeball 110 rotates, 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.

[0093] 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 pan-focus 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, like the first embodiment, these XR glasses can also alleviate eye strain, myopia, and axial myopia. That is, because the pan-focus 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 contact lens that provides clear, blur-free vision from long distances to very close distances. Even when viewing close-up objects, overuse of the ciliary muscle is reduced, thereby alleviating eye strain, myopia, and axial myopia. Furthermore, if the material of the pan-focus contact lens 1000 is given UV protection, it can also prevent UV-induced eye diseases (such as UV keratitis and pinguecula).

[0094] Seventh Embodiment [Deep focus glasses] As shown in Figure 24, the pan-focus glasses according to the seventh embodiment differ from the pan-focus glasses according to the first embodiment in that one lens 33 is provided on the light-exiting side of the transparent pillar assembly 30 to cover all of the transparent pillars 31, and a tiny lens 34 is provided for each of multiple (two in Figure 24) adjacent transparent pillars 31 on the light-incident side of the transparent pillar assembly 30; otherwise, they are the same as the pan-focus glasses according to the first embodiment.

[0095] [Deep focus glasses in action] The operation of these pan-focus glasses is the same as that of the pan-focus glasses of the first embodiment, except that light incident on the transparent pillar assembly 30 is focused by lenses 34 provided on the light-incident end face of each of the adjacent transparent pillars 31, and lenses 33 provided on the light-exit end faces of all transparent pillars 31 prevent the light passing through each transparent pillar 31 from spreading due to diffraction.

[0096] According to the seventh embodiment, it is possible to obtain substantially the same advantages as the first embodiment.

[0097] Eighth Embodiment [Deep focus glasses] As shown in Figure 25, the pan-focus glasses of the eighth embodiment differ from the pan-focus glasses of the first embodiment in that a tiny lens 33 for focusing light is provided for each transparent pillar 31 only on the light-emitting side of the transparent pillar assembly 30; otherwise, they are the same as the pan-focus glasses of the first embodiment.

[0098] [Deep focus glasses in action] The operation of these deep focus glasses is the same as that of the deep focus glasses according to the first embodiment, except that no lens 34 is provided on the light incident end face of each transparent pillar 31 of the transparent pillar assembly 30.

[0099] According to the eighth embodiment, it is possible to obtain substantially the same advantages as the first embodiment.

[0100] Ninth Embodiment [Deep focus glasses] As shown in Figure 26, in the pan-focus glasses according to the ninth embodiment, a tiny lens 33 for focusing light is provided for each transparent pillar 31 only on the light-emitting side of the transparent pillar assembly 30, but unlike the pan-focus glasses according to the first embodiment, the lens 33 is embedded inside each transparent pillar 31 from the end face on the light-emitting side; otherwise, it is the same as the pan-focus glasses according to the first embodiment.

[0101] [Deep focus glasses in action] The operation of these pan-focus glasses is the same as that of the pan-focus glasses according to the first embodiment.

[0102] According to the ninth embodiment, it is possible to obtain substantially the same advantages as the first embodiment.

[0103] Tenth Embodiment [Deep focus glasses] As shown in Figure 27, the pan-focus glasses according to the tenth embodiment differ from the pan-focus glasses according to the first embodiment in that one lens 33 is provided on the light-exiting side of the transparent pillar assembly 30 to cover all of the transparent pillars 31, and no lens 34 is provided on the light-incident side of each transparent pillar 31 of the transparent pillar assembly 30; otherwise, they are the same as the pan-focus glasses according to the first embodiment.

[0104] [Deep focus glasses in action] The operation of these deep focus glasses is the same as that of the deep focus glasses according to the first embodiment, except that no lens 34 is provided on the light incident side of each transparent pillar 31 of the transparent pillar assembly 30.

[0105] According to the tenth embodiment, it is possible to obtain substantially the same advantages as the first embodiment.

[0106] Eleventh Embodiment [Deep focus glasses] As shown in Figure 28, the pan-focus glasses according to the 11th embodiment differ from the pan-focus glasses according to the first embodiment in that no lens 33 is provided on the light-exit side of each transparent pillar 31 of the transparent pillar assembly 30, and instead a tiny lens 34 is provided for each transparent pillar 31 on the light-incident side of the transparent pillar assembly 30; otherwise, they are the same as the pan-focus glasses according to the first embodiment.

[0107] [Deep focus glasses in action] The operation of these deep focus glasses is the same as that of the deep focus glasses according to the first embodiment, except that no lens 33 is provided on the light exit side of each transparent pillar 31 of the transparent pillar assembly 30.

[0108] According to the eleventh embodiment, it is possible to obtain substantially the same advantages as the first embodiment.

[0109] Twelfth Embodiment [Deep focus glasses] As shown in Figure 29, the pan-focus glasses according to the 12th embodiment differ from the pan-focus glasses according to the first embodiment in that no lens 33 is provided on the light-exit side of each transparent pillar 31 of the transparent pillar assembly 30, and instead a tiny lens 34 is provided for each transparent pillar 31 on the light-incident side of the transparent pillar assembly 30; otherwise, they are the same as the pan-focus glasses according to the first embodiment.

[0110] [Deep focus glasses in action] The operation of these deep focus glasses is the same as that of the deep focus glasses according to the first embodiment, except that no lens 33 is provided on the light-emitting end face of each transparent pillar 31 of the transparent pillar assembly 30.

[0111] According to the twelfth embodiment, it is possible to obtain substantially the same advantages as the first embodiment.

[0112] Thirteenth embodiment [Deep focus glasses] As shown in Figure 30, the pan-focus glasses according to the 13th embodiment differ from the pan-focus glasses according to the first embodiment in that a lens 33 is not provided for each transparent pillar 31 on the light-exiting side of the transparent pillar assembly 30, but a lens 34 is provided for each of multiple adjacent transparent pillars 31 on the light-incident side of the transparent pillar assembly 30; otherwise, they are the same as the pan-focus glasses according to the first embodiment.

[0113] [Deep focus glasses in action] The operation of these pan-focus glasses is the same as that of the pan-focus glasses according to the first embodiment, except that no lens 33 is provided for each transparent pillar 31 on the light-exiting side of the transparent pillar assembly 30, and light incident on the transparent pillar assembly 30 is focused by lenses 34 provided for each of the plurality of transparent pillars 31 adjacent to each other on the end face on the light-incident side.

[0114] According to the thirteenth embodiment, it is possible to obtain substantially the same advantages as the first embodiment.

[0115] 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.

[0116] 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 necessary.

[0117] Furthermore, for example, the transparent pillar assembly 30 shown in any one of Figures 24 to 29 may be used in place of the transparent pillar assembly 30 in the pan-focus glasses according to the fourth and sixth embodiments or the XR glasses according to the second, third and sixth embodiments. [Explanation of symbols]

[0118] 10...frame, 20...left eye housing, 30...transparent pillar assembly, 31...transparent pillar, 32...micro magnet, 33, 34...lens, 40...liquid, 50...eye tracking sensor, 60...transparent layer, 70...coil array board, 71...micro coil, 80...control circuit section, 170...left eye sensor section, 200...proximity display, 210...board, 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...semi-transparent micro LED display for XR glasses, 1000...pan focus contact lens, 1100...transparent pillar

Claims

1. a transparent left-eye housing and a transparent right-eye housing that are integral with the frame; a transparent column assembly movably housed in the left-eye housing and the right-eye housing, respectively; At least one eye tracking sensor attached to each of the left eye housing and the right eye housing; and the transparent column assembly is configured such that a plurality of transparent columns are arranged to serve as collimators, each of which has a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and the light transmitted through each transparent column is converged to a convergence point; a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, Pan-focus glasses have the function of moving the transparent column assembly inside the left eye housing and the right eye housing so that it faces the pupil and the convergence point is located on the surface or inside of the cornea, the pupil, the surface or inside of the lens, and inside the eyeball, depending on the result of detecting the position of the pupil of the user's eye by the eye tracking sensor.

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. 2. The pan-focus eyeglasses according to claim 1, wherein the transparent column assembly is configured to be movable by magnetic or electrical force.

4. The pan-focus glasses of claim 3, wherein micro magnets are attached to multiple locations on 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 that they can be driven independently of each other.

5. a transparent left-eye housing and a transparent right-eye housing that are integral with the frame; a transparent column assembly movably housed in the left-eye housing and the right-eye housing, respectively; At least one eye tracking sensor attached to each of the left eye housing and the right eye housing; an opaque or semi-transparent left-eye display and a right-eye display provided in front of the left-eye housing and the right-eye housing, respectively; and the transparent column assembly is configured such that a plurality of transparent columns are arranged to serve as collimators, each of which has a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and the light transmitted through each transparent column is converged to a convergence point; a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, XR glasses have the function of moving the transparent column assembly inside the left eye housing and the right eye housing so that it faces the pupil and the convergence point is located on the surface or inside of the cornea, the surface or inside of the pupil, the lens, or inside the eyeball, depending on the result of detecting the position of the pupil of the user's eye by the eye tracking sensor.

6. The XR glasses according to claim 5, wherein the inside of the left eye housing and the right eye housing is filled with a liquid having a refractive index equal to that of the transparent pillars, and the transparent pillar assembly is suspended within the liquid.

7. 6. The X-ray glasses according to claim 5, wherein the transparent column assembly is movable by magnetic or electric force.

8. XR glasses as described in claim 5, wherein micro magnets are attached to multiple locations on 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 that they can be driven independently of each other.

9. The XR glasses of claim 5, wherein the left-eye display and the right-eye display are liquid crystal displays, organic electroluminescence displays, or micro-light-emitting diode displays.

10. The collimator has a transparent column assembly in which a plurality of transparent columns are arranged, each of which acts as a collimator and has a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and the light transmitted through each transparent column converges to a convergence point; a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, A pan-focus contact lens is configured so that when attached to the cornea, the convergence point is located near the center of the crystalline lens, and has an overall bowl-shaped curved shape that corresponds to the curvature of the surface of the cornea.

11. The collimator has a transparent column assembly in which a plurality of transparent columns are arranged, each of which acts as a collimator and has a transmittance of 50% or more and a radiation angle of 5 degrees or less for incident light, and the light transmitted through each transparent column converges to a convergence point; a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, XR glasses use pan-focus contact lenses that are configured so that when attached to the cornea, the convergence point is located near the center of the lens, and have an overall bowl-shaped curve that corresponds to the curvature of the surface of the cornea.

12. an XR glasses main body having a left-eye display unit and a right-eye display unit each comprising a translucent micro light-emitting diode display having a pixel array in which one pixel is configured by 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; 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 pixels of the left-eye display section and the right-eye display section, the light having passed through each transparent column being converged to a convergence point; a condenser lens is provided for each of the plurality of transparent columns adjacent to each other on the light exit side and / or the light incident side of the transparent column assembly, A pan-focus contact lens is configured so that the convergence point is located near the center of the crystalline lens when attached to the cornea, and has a bowl-shaped curved shape as a whole in accordance with the curvature of the surface of the cornea; XR glasses with.

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