Pan-focus spectacles and xr glasses

Abstract

To provide pan-focus spectacles that greatly reduces a mixture ratio of light by seeing the outside world through a transparent column assembly allowing only light within a certain emission angle to pass through to obtain a less-blur sharp visual field.SOLUTION: A pair of pan-focus spectacles have a left-eye and a right-eye transparent enclosure (20) united with a frame (10), transparent column assemblies (30) housed movably in those enclosures, and eye-tracking sensors (50) fitted to those enclosures. A transparent column assembly has a plurality of transparent columns (31), having a transmissivity of 50% or larger and an emission angle of 5° or larger to incident light, arrayed, and is configured to converge light transmitted through the respective transparent columns on a convergence point. Transparent column assemblies are opposed to the pupils of the eyes of a user according to results of detection on the positions of the pupils by the eye-tracking sensors, and also moved so that convergence points are located on surfaces of corneas or in the corneas, or in the eyeballs, etc.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This invention relates to Pan-focus glasses and XR (Cross Reality) glasses.

Background Art

[0002] In glasses, it is necessary to select an appropriate lens power according to the user's eyesight. Also, the shapes of the lenses used by farsighted users and nearsighted users are different. In bifocal glasses, different lenses are installed within the frame, and it is necessary to change the viewing position according to the distance of the object. Also, it is necessary to change the lens due to the change in the user's eyesight.

[0003] On the other hand, in XR glasses such as VR (Virtual Reality) glasses and MR (Mixed Reality) glasses that combine the real video captured by an image sensor and a virtual video and project it onto a proximity display in front of the eyes, a lens is required to adjust the focus of the user's eyes to the proximity display. Therefore, it is necessary to secure a certain distance between the display and the eyes. Generally, a normal convex lens is made into a Fresnel lens or a pancake lens to make it thinner, but there are still many thick-shaped ones like ski goggles, which are inconvenient for normal use, so further thinning is desired.

[0004] In recent years, a head-mounted display in which an angle-selective transmission element is arranged in the optical path of an electronic viewfinder has been proposed (see Patent Document 1). The angle-selective transmission element is provided at a position facing the eye point and has a plurality of openings as a limiting means for limiting the passing direction of light to a predetermined range. In the angle-selective transmission element, the limiting angle range of the passing direction of light is different in at least two regions, and it is possible to limit or block light from directions other than the eye point. However, this head-mounted display uses a convex lens to focus on the image of the near display and has the same problems as the above-mentioned VR glasses and MR glasses. In addition, this head-mounted display has a configuration in which it is not easy to secure a sufficiently wide eye box. As a head-mounted display, there is also proposed one having a display element, a plurality of optical local openings interposed between a pupil assumption region having the positions and sizes of the pupils of both eyes assumed at the time of wearing and the display element, a shutter mechanism for rapidly switching the positions of the local openings over time, and a display control unit for rapidly switching the display position of a partial image on the display surface of the display element in synchronization with the positions of the local openings of the shutter mechanism (see Patent Document 2). Patent Document 2 describes that the problem of the contradiction between the convergence angle of the eyes and the focal length can be reduced by pan-focusing with a pinhole. However, this head-mounted display has a configuration in which it is not easy to make it thin and lightweight, and the usage environment (conditions) is limited. In the case of XR glasses, it is difficult to widely spread them unless they are thin and lightweight devices like glasses or sunglasses.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] The problem to be solved by this invention is to sharply reduce the mixing ratio of light by looking at the outside world through a transparent column assembly that allows only light within a certain radiation angle to pass through, instead of a normal spectacle lens, and to provide a pancofocal spectacle that can obtain a clear view with little blur from far to ultra-close distances.

[0007] Another problem to be solved by this invention is that by looking at the image of a proximity display through a transparent column assembly that allows only light within a certain radiation angle to pass through, image recognition can be achieved at a much closer distance compared to conventional optical systems, and to provide XR glasses such as VR glasses and MR glasses that can be realized with a thickness not much different from that of normal glasses and a non-bulky shape.

Means for Solving the Problems

[0008] In order to solve the above problems, this invention has a transparent left-eye housing and a transparent right-eye housing provided integrally with a frame, a transparent column assembly movably housed inside the left-eye housing and the right-eye housing respectively, and at least one eye-tracking sensor attached to each 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 serving as collimators, each having a radiation angle with a transmittance of 50% or more within 5 degrees with respect to incident light, are arranged, and the light transmitted through each transparent column converges at a convergence point, and it is a pancofocal spectacle having a function of moving the transparent column assembly inside the left-eye housing and the right-eye housing to face the pupil according to the result of detecting the position of the pupil of the user's eye by the eye-tracking sensor, and moving the convergence point to be located at any one of the surface or inside of the cornea, the pupil, the surface or inside of the lens, and the inside of the eyeball.

[0009] Typically, the inside of the left-eye housing and the right-eye housing is filled with a liquid having a refractive index equivalent to that of the transparent columns, and a transparent column aggregate floats inside the liquid. The liquid filled inside the left-eye housing and the right-eye housing is selected as necessary in consideration of the material of the transparent columns constituting the transparent column aggregate. For example, silicone oil (refractive index 1.4 to 1.58, viscosity 1 to several tens of thousands of mPa·s), oil-immersion oil (refractive index ~1.5, viscosity 150 to several tens of thousands of mPa·s), water (refractive index 1.33, viscosity ~1 mPa·s), alcohol (refractive index ~1.4, viscosity 0.5 to 0.8 mPa·s), etc. Typically, the transparent column aggregate can be constituted by, for example, an aggregate of a large number of transparent columns in the shape of a regular hexagonal frustum, arranged in a honeycomb shape such that the side surfaces are in close contact with each other, on a curved surface. A light absorption film is provided on the side surface of each transparent column. The material of the transparent column is selected as necessary. For example, it is a thermoplastic acrylic resin (PMMA), a polycarbonate (PC) resin, a polydimethylsiloxane (PDMS), etc. The refractive index of these materials is 1.4 to 1.6. The transparent column may be a cavity made of air. The material of the light absorption film is selected as necessary. For example, it is a black resist, etc.

[0010] The transparent column assembly can be configured to be movable by magnetic force or electric force. When moving the transparent column assembly by magnetic force, for example, small magnets are attached to multiple locations of the transparent column assembly, and a plurality of small coils are attached to at least one of the front and rear surfaces of the left-eye housing and the right-eye housing so as to be independently drivable from each other. Typically, the plurality of small coils are arranged in a two-dimensional array. The small magnets are typically attached to at least three locations of the transparent column assembly. The small magnets are selected as needed, but in order to miniaturize, preferably, a strong magnet such as a neodymium-based magnet is used. Typically, small magnets are attached to multiple locations of the transparent column assembly, and a plurality of small coils are attached to at least one of the front and rear surfaces of the left-eye housing and the right-eye housing so as to be independently drivable from each other. These plurality of small coils are typically arranged in a two-dimensional array, but are not limited thereto. The transparent column assembly may be configured to be movable by mechanically changing its position and angle. For example, a piezo actuator or a motor is connected to the transparent column assembly.

[0011] As the eye tracking sensor, typically, a near-infrared sensor is used. The eye tracking sensor is typically attached to the four corners of the left-eye housing and the right-eye housing. The eye tracking sensor detects the user's pupil, thereby detecting the movement of the eyeball, and moves the transparent column assembly according to the result.

[0012] Here, the above-mentioned radiation angle represents the angle range from the emission direction at which the light intensity is maximum to the point where the intensity becomes half. That the radiation angle of the light is within 5 degrees means that, with the emission direction at which the light intensity is maximum as the reference (0 degrees), the angle range until the light intensity becomes half is within ±2.5 degrees, and the range is within 5 degrees.

[0013] Further, this invention transparent left-eye housing and right-eye housing provided integrally with the frame, transparent column assemblies respectively movably housed inside the left-eye housing and the right-eye housing, At least one eye-tracking sensor respectively attached to the left-eye housing and the right-eye housing, An opaque or semi-transparent left-eye display and a right-eye display respectively provided on the front surfaces of the left-eye housing and the right-eye housing, and has, In the transparent column assembly, a plurality of transparent columns serving as collimators, each having a radiation angle with a transmittance of 50% or more within 5 degrees with respect to incident light, are arranged such that the light transmitted through each transparent column converges at a convergence point. An XR glass having a function of moving the transparent column assembly inside the left-eye housing and the right-eye housing to face the pupil according to the result of detecting the position of the pupil of the user's eye by the eye-tracking sensor, and moving the convergence point to be located on the surface or inside of the cornea, the pupil, the surface or inside of the lens, or inside the eyeball.

[0014] XR glasses are a general term for glasses using technologies such as VR, AR (Augmented Reality), MR, SR (Substitutional Reality), and intermediate technologies between these technologies (for example, technologies positioned between AR and MR). It is a video display device that creates a space for providing a pseudo-experience by fusing the real world and the virtual world. AR is a technology that projects and shows a virtual world over the real space. MR is a technology that shows by fusing the real space and the virtual space. SR is a technology that shows past videos superimposed on the real space, making past events seem as if they are happening right in front of your eyes.

[0015] The left-eye display and the right-eye display as proximity displays are, for example, liquid crystal (LCD) displays, organic electro-luminescence (EL) displays, micro light-emitting diode (LED) displays, and the like.

[0016] In the invention of this XR glass, other than the above, what has been described in relation to the invention of the above pancratic glasses holds true.

[0017] In addition, this invention includes a left-eye lens and a right-eye lens provided integrally with a frame, and transparent column aggregates provided respectively on the rear surfaces of the left-eye lens and the right-eye lens, and has the transparent column aggregate is configured such that a plurality of transparent columns serving as collimators, each having a radiation angle of 5 degrees or less with a transmittance of 50% or more with respect to incident light, are arranged, and the light transmitted through each transparent column converges at a convergence point, and is a pancake-focus glasses in which the convergence point is located at any one of the surface or inside of the cornea, the pupil, the surface or inside of the lens, and the inside of the eyeball.

[0018] The left-eye lens and the right-eye lens may be convex lenses or concave lenses, and may be graded or ungraded.

[0019] In the invention of this pancake-focus glasses, other than the above, what has been described in relation to the invention of the above pancake-focus glasses holds true.

Advantages of the Invention

[0020] According to the pancake-focus glasses of this invention, instead of a normal spectacle lens, the outside world can be seen through a transparent column aggregate that allows only light within a certain radiation angle to pass through, so that the mixing ratio of light can be drastically reduced, and thereby a clear visual field with little blur can be obtained from far distance to ultra-close distance.

[0021] According to the XR glasses of this invention, by viewing the image of a near display through a transparent column aggregate that allows only light within a certain radiation angle to pass through, image recognition can be achieved at a much closer distance compared to a conventional optical system, and VR glasses, MR glasses, etc. with a thickness not much different from that of normal glasses and a non-bulky shape can be realized.

Brief Description of the Drawings

[0022]

Figure 1

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Figure 4C

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Embodiments for Carrying Out the Invention

[0023] Hereinafter, a mode for carrying out the invention (hereinafter referred to as "embodiment") will be described.

[0024] 〈First Embodiment〉 [Panfocus glasses] FIG. 1 shows panfocus glasses according to the first embodiment and is a left side view. Since this panfocus glasses is configured symmetrically, hereinafter, the configuration on the left eye side will be described.

[0025] As shown in FIG. 1, in this panfocus glasses, a transparent column assembly 30 is movably housed inside a transparent left-eye housing 20 integrated with a frame 10. The left-eye housing 20 has a curved shape that is convex forward as a whole. The inside of the left-eye housing 20 is filled with a liquid 40, and the transparent column assembly 30 floats in this liquid 40. As the liquid 40, one having a refractive index equivalent to that of the transparent material of the transparent column assembly 30 is used, and is selected as necessary from among those listed above, for example. An example of a front view when the user wears this panfocus glasses, that is, the rear surface of the left-eye housing 20, is shown in FIG. 2. As shown in FIG. 2, when viewed from the front, the left-eye housing 20 has a rectangular shape with rounded corners. In this state, the transparent column assembly 30 is located substantially at the center of the left-eye housing 20. The thickness t of the left-eye housing 20 is selected as necessary, but is, for example, 3 to 5 mm. As shown in FIGS. 1 and 2, eye-tracking sensors 50 are attached to the four corners of the rear surface of the left-eye housing 20, respectively. The eye-tracking sensor 50 is a near-infrared sensor and can detect the position of the pupil.

[0026] FIGS. 3A, 3B, 3C, and 3D show the transparent column assembly 30. FIGS. 3A and 3B are a plan view and a cross-sectional view of the transparent column assembly 30, respectively, and FIGS. 3C and 3D are a plan view and a side view showing a transparent column 31 as a collimator of the transparent column assembly 30, respectively.

[0027] As shown in FIGS. 3A and 3B, the transparent column assembly 30 as a whole has a circular shape that is curved like a bowl. The outer peripheral portion of the transparent column assembly 30 is made of the same material as the transparent columns 31, and the micro magnets 32 are respectively penetrated and attached at four positions on this outer peripheral portion. In FIG. 3B, the magnetic poles of the micro magnets 32 are such that the curved convex side is the N pole and the concave side is the S pole, but it is not limited to this, and the opposite polarity may be used. The diameter of the transparent column assembly 30 is, for example, 12 to 22 mm, and the thickness L is, for example, 0.1 to 0.5 mm, but it is not limited to this.

[0028] The transparent column assembly 30 is formed by arranging a large number of transparent columns 31 in a truncated regular hexagonal pyramid shape as shown in FIGS. 3C and 3D, with their sides in close contact with each other in a honeycomb pattern. The curved outer and inner surfaces of the transparent column assembly 30 are formed smoothly. Let the diagonal length on the outer surface of the transparent column 31 be D Outer and the diagonal length on the inner surface be D Inner . Then, D Outer >D Inner .

[0029] As shown in FIG. 3B, the light passing through each transparent column 31 that constitutes the transparent column assembly 30 is configured to converge at a single point (convergence point). The convergence point where the light transmitted through each transparent column 31 converges is located at either the surface or inside of the cornea, the pupil, the surface or inside of the lens, or inside the eyeball when the user wears these pancratic glasses.

[0030] Each transparent column 310 that constitutes the transparent column assembly 30 is configured such that the radiation angle of the light from each transparent column 31 is within 5 degrees. As shown in FIGS. 3C and 3D, let the length of the transparent column 31 be L and half of the radiation angle be θ / 2. The design conditions of the transparent column 31 are typically L / D Outer ≧23 and D Outer >D Inner . The collimation angle θ under this condition is within 5 degrees, the range of L is, for example, 0.046 to 0.5 mm, and the ranges of D Outer and D Inner are, for example, 2 to 22 μm.

[0031] The condition that the light emission angle is 5 degrees corresponds to the light emission angle of the light incident on the pupil from a light source about 92 mm ahead when the pupil diameter is 8 mm. This is within the range where the lens can focus on the retina for some people. Generally, the distance at which a person can comfortably focus on the retina is about 230 mm. In this case, with a pupil diameter of 8 mm, the light emission angle of the light incident on the pupil is about 2 degrees. Therefore, the design condition of each transparent column 31 of the transparent column assembly 30 is more preferably a condition where θ ≤ 2.0 degrees, that is, L / D Outer ≧ 57.3. The panfocus property improves as the light emission angle θ of the transmitted light is narrowed. However, as the light emission angle is narrowed, the transmitted light amount decreases. Therefore, it is desirable that the light emission angle θ of the light passing through each transparent column 31 is 0.1 degrees or more.

[0032] The transparent material of the transparent column assembly 30 is, for example, a thermoplastic acrylic resin (PMMA) or a polycarbonate (PC) resin. The material of the light absorption film on the side surface of the transparent column 31 is, for example, a black resist or a material obtained by mixing carbon black into a thermoplastic resin.

[0033] A method for manufacturing the transparent pillar assembly 30 will be described. To achieve a radiation angle within 5 degrees, it is necessary to increase the aspect ratio of the transparent pillar 31 serving as a collimator to about 23 or more, and it is difficult to form them all at once. Therefore, for example, as shown in FIG. 4A, a flat and stretchable transparent layer 60 having a transparent pillar assembly composed of regular hexagonal columnar transparent pillars 31 whose side walls are formed of a light absorption film (not shown) is formed, and as shown in FIG. 4B, a plurality of layers (three layers in this example) are stacked to form a thick film of a transparent pillar assembly having a collimating function with a sufficient thickness to bring the radiation angle within 5 degrees. The thick film is cut into a disk shape of an appropriate size and heat-molded to be curved. This state is shown in FIG. 4C. By this process, the area of the transparent pillar assembly has a shape where the outer side of the curved surface is wide and the inner side is narrow. The convergence point of the light transmitted through the transparent pillar assembly can be adjusted by the radius of curvature of the curvature at this time. The radius of curvature is selected according to the position of the convergence point, but is typically about 12 to 30 mm. Next, as shown in FIG. 4D, the excess portions of the inner and outer curved surfaces of the thick film are ground. If necessary, as shown in FIG. 4E, chamfering is performed on the outer peripheral portion of the transparent pillar assembly 30. After that, through holes are formed at four locations on the outer peripheral portion of the transparent pillar assembly 30, and the micro magnets 32 are inserted and fixed into these through holes. Thus, the target transparent pillar assembly 30 is manufactured.

[0034] As shown in FIGS. 1 and 2, coil array substrates 70 are provided on the front and rear surfaces of the left-eye housing 20 on the liquid 40 side, respectively. The coil array substrate 70 is formed by arranging a large number of minute coils 71 for generating a magnetic field in a two-dimensional matrix on a transparent substrate such as a transparent film. 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 lines 72 extending in the column direction and scanning lines 73 extending in the row direction are provided vertically and horizontally on the transparent substrate. The intervals a and b between the minute coils 71 are, for example, 10 to 100 μm each. The active drive circuit consists of a switching transistor T. The switching transistor T is generally composed of a thin-film transistor using a semiconductor thin film such as polycrystalline or amorphous Si thin film. The source of the switching transistor T is connected to the power line 72, the drain is connected to one end of the minute coil 71, and the gate is connected to the scanning line 73. The other end of the minute coil 71 is grounded. One or more minute coils 71 are selected by the selection of the scanning line 73 and the power line 72. A current flows from the power line 72 through the switching transistor T to the selected minute coil 71, and the magnetic field passing through the minute coil 71 is controlled by controlling the current value with the gate voltage applied to the scanning line 73. FIG. 1 schematically shows the magnetic field lines passing through the minute coil 71. The transparent column assembly 30 can be moved in the liquid 40 and its position, angle, etc. can be adjusted by the attractive or repulsive force generated between the magnetic field generated by this minute coil 71 and the minute magnets 32 attached to the four corners of the transparent column assembly 30. Thus, by controlling the magnetic force acting on the four minute magnets 32 on the transparent column assembly 30 by selecting the minute coil 71, the transparent column assembly 30 can be easily moved to a desired position and orientation.

[0035] Figure 6 shows how the user wears the pancratic glasses. In Figure 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. When the eyeball 110 is assumed to be a sphere, its diameter is ~24 mm. The diameter of the lens 120 is ~9 mm and its thickness is ~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 the 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.

[0036] A control circuit unit 80 for controlling the operation of the coil array substrate 70 and thus the operation of the transparent pillar assembly 30 is provided at the left earhook portion of the frame 10. A wireless communication unit may be provided in the control circuit unit 80 as needed. Although not shown, a flexible wiring for wiring between the coil array substrate 70, the eye tracking sensor 50, and the control circuit unit 80 is provided on the side surface of the frame 10 including the earhook portion. A battery (such as a lithium ion battery) used as a power source is attached to any part of the frame 10 (for example, the earhook portion). Although not shown, a nose pad is provided on the nose side portion of the frame 10.

[0037] [Operation of Pancratic Glasses] As shown in FIG. 6, the light from the outside world that enters through the front surface of the left-eye housing 20 enters the transparent column assembly 30, and the radiation angle is narrowed to within substantially 5 degrees by each transparent column 31. After passing through the convergence point, it forms an image on the retina 160. FIG. 7 shows a state in which the line of sight is downward and the eyeball 110 has rotated compared to FIG. 6. As shown in FIG. 7, even when the line of sight is downward and the eyeball 110 rotates, by moving the transparent column assembly 30 inside the liquid 40 of the left-eye housing 20 by magnetic force in response to this rotation, the light passing through the transparent column assembly 30 can surely pass through the pupil 150. More specifically, the movement of the eyeball 110 is detected by detecting the pupil 150 with the eye-tracking sensor 50, and the detection signal is sent to the control circuit unit 80. In the control circuit unit 80, a control signal corresponding to this detection signal is sent to the coil array substrate 70, and a selected current is passed through the selected micro-coil 71 selected by this coil array substrate 70. Thereby, the transparent column assembly 30 is moved to a desired position and orientation. A front view corresponding to FIG. 2 in this state is shown in FIG. 8. As shown in FIG. 8, it can be seen that the transparent column assembly 30, which was near the center in the state of FIG. 2, has moved to the lower right. In this way, by being able to move the transparent column assembly 30 to an optimal position and orientation according to the movement of the eyeball 110, a wide eye box (visible range) can be maintained.

[0038] As described above, according to the pancratic glasses according to the first embodiment, instead of a normal spectacle lens, the outside world can be seen through the transparent column assembly 30 that can narrow the radiation angle of the light from the outside world to within substantially 5 degrees. Therefore, the mixing ratio of light can be drastically reduced, and thereby, a clear visual field with sufficient resolution and little blur can be obtained from a long distance to an ultra-short distance, and a wide eye box can also be maintained. In addition, the thickness of this pancratic glasses can be made the same as that of normal glasses.

[0039] 〈Second Embodiment〉 [XR Glasses] FIG. 9 shows an XR glasses according to the second embodiment, which is a left side view. Since this XR glasses is symmetrically configured, the configuration on the left-eye side will be described below.

[0040] As shown in FIG. 9, in this XR glasses, a proximity display 200 is provided on the front surface of a left-eye housing 20 similar to the pancake-focus glasses according to the first embodiment. The proximity display 200 may be curved to follow the left-eye housing 20 or may be flat. The proximity display 200 is opaque or translucent. In the proximity display 200, a two-dimensional array of pixels composed of three sub-pixels, namely a light-emitting site 220 that emits red light, a light-emitting site 230 that emits green light, and a light-emitting site 240 that emits blue light, is provided on an opaque or translucent substrate 210. The size of one pixel is, for example, 4 to 6 μm. These light-emitting sites 220, 230, 240 are a laminated structure such as a micro light-emitting diode in a micro light-emitting diode display, an organic EL element in an organic EL display, a transparent conductive film, an alignment film, liquid crystal, and a color filter formed on a substrate in a liquid crystal display. The size of one pixel is selected as needed, but is, for example, 4 to 6 μm. A left-eye sensor unit 170 is provided adjacent to the control circuit unit 80 on the side surface or the front surface of the frame 10. The left-eye sensor unit 170 includes, for example, any one or more of an imaging element (such as a CMOS image sensor or a 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 a dark place. Also, acoustic devices such as speakers and bone conduction earphones are installed near the ears of the frame 10 as needed.

[0041] In the case of this XR glasses, the design condition of the transparent pillars 31 of the transparent pillar assembly 30 is preferably a condition where θ ≤ 2.0 degrees, that is, L / D Outer ≥ 57.3. The smaller the angle θ, the higher the pancake-focus property, and the problem of the contradiction between the convergence angle and the focal length, which often causes problems in VR glasses and the like, can be reduced. However, when the angle θ is narrowed, the amount of light transmitted through the transparent pillar 31 also decreases, so the angle θ is preferably 0.1 degrees or more.

[0042] Other than the above, this XR glass is the same as the pancofocal glasses according to the first embodiment.

[0043] Fig. 10 shows the state when a user wears this XR glass.

[0044] [Operation of XR Glass] As shown in Fig. 10, the light emitted from the pixels of the near display 200 and incident on the transparent column assembly 30 has its radiation angle narrowed to substantially within 5 degrees (preferably within 2.0 degrees) by each transparent column 31, and after passing through the convergence point, it forms an image on the retina 160. Also in this XR glass, as in Fig. 7, even when the line of sight is downward and the eyeball 410 is rotated compared to Fig. 10, by moving the transparent column assembly 30 by magnetic force inside the liquid 40 of the left-eye housing 20, the light transmitted through the transparent column assembly 30 can surely pass through the pupil 150. Therefore, a wide eyebox can be maintained.

[0045] According to the XR glass according to the second embodiment, by viewing the image of the near display 200 through the transparent column assembly 30 that can narrow the radiation angle of the incident light to substantially within 5 degrees, image recognition can be performed at a much closer distance compared to the conventional optical system, and VR glasses, MR glasses, AR glasses, SR glasses, etc. with a thickness not much different from that of ordinary glasses and a non-bulky shape can be realized.

[0046] <Third Embodiment> [Pancofocal Glasses] Fig. 11 shows the pancofocal glasses according to the third embodiment, which is a left side view. Since this pancofocal glasses is configured symmetrically, the configuration on the left-eye side will be described below.

[0047] As shown in Fig. 11, in this pancratic spectacle, a concave lens 300 curved following the left-eye housing 20, which is similar to the pancratic spectacle according to the first embodiment, is provided on the front surface of the left-eye housing 20. Except for the transparent column assembly 30, other aspects of this pancratic spectacle are the same as those of the pancratic spectacle according to the first embodiment.

[0048] Fig. 12 shows the state when a user wears this pancratic spectacle. As shown in Fig. 12, in this pancratic spectacle, the visual field area within the range of the angle looking at the transparent column assembly 30 from the convergence point is covered by the transparent column assembly 30, and the visual field area outside it is configured to be covered by the concave lens 300. The visual field angle of one eye of a person with normal vision is in the range of 60 degrees upward, 70 degrees downward, 60 degrees on the nasal side, and 100 degrees on the ear side. However, since the central vision area where shapes, colors, etc. can be clearly recognized is very small, the area covered by the transparent column assembly 30 is, for example, set to about ±10 degrees, and a wider range is covered by the normal concave lens 300.

[0049] [Operation of Pancratic Spectacle] The operation of this pancratic spectacle is the same as that of the pancratic spectacle according to the first embodiment, except that the visual field area within the range of the angle looking at the transparent column assembly 30 from the convergence point is covered by the transparent column assembly 30, and the visual field area outside it is covered by the concave lens 300.

[0050] According to the pancratic spectacle according to the third embodiment, by combining the left-eye housing 20 having the transparent column assembly 30 and the right-eye housing with the concave lens 300, performance equivalent to that of the pancratic spectacle according to the first embodiment can be obtained.

[0051] 〈Fourth Embodiment〉 [Pancratic Spectacle] Fig. 13 shows the pancratic spectacle according to the fourth embodiment and is a left side view. Since this pancratic spectacle is configured symmetrically, the configuration on the left-eye side will be described below.

[0052] As shown in Fig. 13, in this pancratic spectacle, a convex lens 400 curved so as to follow the left-eye housing 20 is provided on the front surface of the left-eye housing 20 similar to the pancratic spectacle according to the first embodiment. Except for the transparent column assembly 30, other aspects of this pancratic spectacle are the same as those of the pancratic spectacle according to the first embodiment.

[0053] Fig. 14 shows a state when a user wears this pancratic spectacle. As shown in Fig. 14, in this pancratic spectacle, the visual field area within the range of the angle looking at the transparent column assembly 30 from the convergence point is covered by the transparent column assembly 30, and the visual field area outside thereof is covered by the convex lens 400. The area covered by the transparent column assembly 30 is, for example, set to about ±10 degrees, and a wider range is covered by the normal convex lens 400.

[0054] [Operation of Pancratic Spectacle] The operation of this pancratic spectacle is the same as that of the pancratic spectacle according to the first embodiment, except that the visual field area within the range of the angle looking at the transparent column assembly 30 from the convergence point is covered by the transparent column assembly 30, and the visual field area outside thereof is covered by the convex lens 400.

[0055] According to the pancratic spectacle according to the fourth embodiment, by the combination of the left-eye housing 20 and the right-eye housing having the transparent column assembly 30 and the convex lens 400, performance equivalent to that of the pancratic spectacle according to the first embodiment can be obtained.

[0056] <Fifth Embodiment> [Pancratic Spectacle] Fig. 15 shows a pancratic spectacle according to the fifth embodiment and is a left side view. Since this pancratic spectacle is configured symmetrically, the configuration on the left-eye side will be described below.

[0057] As shown in Fig. 15, in this pancratic glasses, a transparent column assembly 30 that is curved to follow the lens 500 is provided on the rear surface of the lens 500 provided integrally with the frame 10. The lens 500 may be a convex lens or a concave lens, and may be dioptered or non-dioptered. In Fig. 15, the case where the lens 500 is a concave lens is shown. In this pancratic glasses, different from the pancratic glasses according to the first embodiment, there is no left-eye housing 20, and not only does the transparent column assembly 30 not have a moving function, but also no eye tracking sensor is used.

[0058] Fig. 16 shows the state when the user wears this pancratic glasses. As shown in Fig. 16, in this pancratic glasses, the visual field area within the range of the angle looking at the transparent column assembly 30 from the convergence point is covered by the transparent column assembly 30, and the visual field area outside thereof is covered by the lens 500.

[0059] [Operation of Pancratic Glasses] In this pancratic glasses, the visual field area within the range of the angle looking at the transparent column assembly 30 from the convergence point is covered by the transparent column assembly 30, and the visual field area outside thereof is covered by the lens 500. As shown in Fig. 17, when the line of sight is downward and the eyeball 100 rotates, the area where the light transmitted through the transparent column assembly 30 reaches the retina 160 becomes narrower compared to the case of Fig. 16.

[0060] According to the pancake focus glasses according to the fifth embodiment, the following advantages can be obtained. That is, as shown in FIG. 16, when the transparent column aggregate 30 is fixed at the central position when the user views it from the front, even if the user slightly moves the line of sight (pupil 150), there will be a region where the light that should originally enter the field of view is blocked by the transparent column aggregate 30 and cannot be seen. However, in daily life where there is no need to move the eyeball 100 violently, such as when the user is doing intense exercise or playing games (such as when slowly reading a book or a newspaper), the user can move the head or neck without moving the pupil 150 much and view the object (such as an object or text) in a state close to direct vision to cope. In that case, it is possible to omit the moving function of the transparent column aggregate 30 using the eye tracking sensor, and the pancake focus glasses can be realized at low cost.

[0061] As described above, the embodiments of the present invention have been specifically described. However, the present invention is not limited to the above-described embodiments, and various modifications based on the technical idea of the present invention are possible.

[0062] For example, the numerical values, configurations, shapes, materials, methods, etc. mentioned in the above embodiments are merely examples, and different numerical values, configurations, shapes, materials, methods, etc. may be used as necessary.

Explanation of Reference Numerals

[0063] 10... frame, 20... left-eye housing, 30... transparent column aggregate, 31... transparent column, 32... micro magnet, 40... liquid, 50... eye tracking sensor, 60... transparent layer, 70... coil array substrate, 71... micro coil, 80... control circuit unit, 170... left-eye sensor unit, 200... proximity display, 210... substrate, 220... light-emitting site of red light emission, 230... light-emitting site of green light emission, 240... light-emitting site of blue light emission, 300... concave lens, 400... convex lens, 500... lens

Claims

1. A transparent left-eye housing and a right-eye housing provided integrally with a frame, a transparent column assembly movably housed inside 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 having, the transparent column assembly is configured such that a plurality of transparent columns serving as collimators, each having a transmittance of 50% or more and a radiation angle of within 5 degrees with respect to incident light, are arranged, and the light transmitted through each transparent column converges at a convergence point, a pancratic eyeglass having a function of facing the transparent column assembly toward the pupil inside the left-eye housing and the right-eye housing according to the result of detecting the position of the pupil of the user's eye by the eye-tracking sensor, and moving the convergence point to be located at any one of the surface or inside of the cornea, the pupil, the surface or inside of the lens, and the inside of the eyeball.

2. The pancratic eyeglass according to claim 1, wherein a liquid having a refractive index equivalent to that of the transparent column is filled inside the left-eye housing and the right-eye housing, and the transparent column assembly floats inside the liquid.

3. The pancratic eyeglass according to claim 1, wherein the transparent column assembly is configured to be movable by magnetic force or electric force.

4. The pancratic eyeglass according to claim 3, wherein a plurality of micro magnets are attached to a plurality of locations of the transparent column assembly, and a plurality of micro coils are attached to at least one of the front and rear surfaces of the left-eye housing and the right-eye housing so as to be independently drivable from each other.

5. The pancratic eyeglass according to claim 4, wherein the plurality of micro coils are arranged in a two-dimensional array.

6. The pancratic eyeglass according to claim 1, wherein the micro magnets are attached to at least three locations of the transparent column assembly.

7. The pancratic eyeglass according to claim 1, wherein the eye-tracking sensor is attached to the four corners of the left-eye housing and the right-eye housing.

8. A transparent left-eye housing and a right-eye housing provided integrally with a frame, a transparent column assembly movably housed inside 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 respectively provided on the front surfaces of the left-eye housing and the right-eye housing, having, the transparent column assembly is configured such that a plurality of transparent columns serving as collimators, each having a radiation angle with a transmittance of 50% or more within 5 degrees with respect to incident light, are arranged, and the light transmitted through each transparent column converges at a convergence point, an XR glass having a function of moving the transparent column assembly inside the left-eye housing and the right-eye housing to face the pupil according to the result of detecting the position of the pupil of the user's eye by the eye-tracking sensor, and the convergence point is located on the surface or inside of the cornea, the pupil, the surface or inside of the lens, or inside the eyeball,

9. The XR glass according to claim 8, wherein a liquid having a refractive index equivalent to that of the transparent column is filled inside the left-eye housing and the right-eye housing, and the transparent column assembly floats inside the liquid.

10. The XR glass according to claim 8, wherein the transparent column assembly is configured to be movable by magnetic force or electric force.

11. The XR glass according to claim 8, wherein a plurality of micro magnets are attached to a plurality of locations of the transparent column assembly, and a plurality of micro coils are attached to at least one of the front and rear surfaces of the left-eye housing and the right-eye housing so as to be independently drivable from each other.

12. The XR glass according to claim 11, wherein the plurality of micro coils are arranged in a two-dimensional array.

13. The XR glass according to claim 8, wherein the micro magnets are attached to at least three locations of the transparent column assembly.

14. The XR glass according to claim 8, wherein the eye-tracking sensor is attached to the four corners of the left-eye housing and the right-eye housing.

15. The XR glass according to claim 8, wherein the left-eye display and the right-eye display are a liquid crystal display, an organic electroluminescence display, or a micro light emitting diode display.

16. A left-eye lens and a right-eye lens provided integrally with a frame, and a transparent column assembly respectively provided on the rear surfaces of the left-eye lens and the right-eye lens, having, the transparent column assembly is configured such that a plurality of transparent columns serving as collimators, each having a radiation angle with a transmittance of 50% or more within 5 degrees with respect to incident light, are arranged, and the light transmitted through each transparent column converges at a convergence point, A pancentric spectacle in which the above convergence point is located at any one of the surface or inside of the cornea, the pupil, the surface or inside of the lens, and the inside of the eyeball.

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