Spectacles and spectacle frame

Abstract

The invention discloses glasses and a glasses frame and relates to the technical field of augmented reality. Wherein the glasses comprise a support (130), auxiliary lenses (120), an optical machine (160) and augmented reality lenses (110), the auxiliary lenses (120) are fixed to the support (130), and the support (130) is used for being worn on the head of a user so that the auxiliary lenses (120) can be located in front of the eyes of the user; the light machine (160) comprises a projection mirror (161), and the projection mirror (161) is arranged close to the edge of the auxiliary lens (120); the augmented reality lens (110) is movably connected to the support (130), when the augmented reality lens (110) moves to a first position, the augmented reality lens (110) shields the side, away from the eyes of the user, of the auxiliary lens (120), and a partial region of the augmented reality lens (110) is opposite to the projection mirror (161), so that the light machine (160) projects a virtual image on the augmented reality lens (110), and the projection mirror (161) projects the virtual image on the augmented reality lens (110). When the augmented reality lens (110) moves to the second position, the augmented reality lens (110) cancels the shielding of at least partial region of the auxiliary lens (120); wherein visible light can penetrate through the auxiliary lens (120) and the augmented reality lens (110).

Description

glasses and frames Technical Field

[0001] The present disclosure relates to the field of augmented reality technology, and in particular to glasses and glasses frames. Background Art

[0002] With the continuous development of augmented reality technology, augmented reality (AR) glasses are being used by more and more users. AR glasses include augmented reality lenses that can display some virtual images. When users need to view the virtual images, they need to wear AR glasses, and when they do not need to view the virtual images, they need to take off the AR glasses.

[0003] However, when the user already wears other types of glasses, it is very inconvenient to put on or take off the AR glasses, resulting in a poor user experience.

[0004] Summary of the Invention

[0005] The embodiments of the present disclosure adopt the following technical solutions:

[0006] On the one hand, a pair of glasses is provided, comprising a bracket, an auxiliary lens, an optical engine and an augmented reality lens, wherein the auxiliary lens is fixed to the bracket, and the bracket is used to be worn on the user's head so that the auxiliary lens is located in front of the user's eyes; the optical engine comprises a projection mirror, and the projection mirror is arranged adjacent to the edge of the auxiliary lens; the augmented reality lens is movably connected to the bracket, and when the augmented reality lens moves to a first position, the augmented reality lens blocks the side of the auxiliary lens away from the user's eyes, and a partial area of ​​the augmented reality lens is opposite to the projection mirror, so that the optical engine projects a virtual image onto the augmented reality lens, and when the augmented reality lens moves to a second position, the augmented reality lens cancels the blocking of at least a partial area of ​​the auxiliary lens; wherein, both the auxiliary lens and the augmented reality lens can transmit visible light.

[0007] In some embodiments, the augmented reality lens includes a light waveguide plate, the light waveguide plate includes a coupling-in grating and a coupling-out grating, and when the light waveguide plate is in the first position, the coupling-in grating is opposite to the projection mirror, and the coupling-out grating is opposite to the auxiliary lens.

[0008] In some embodiments, the projection mirror is disposed on the bracket or the auxiliary lens.

[0009] In some embodiments, the bracket includes a frame and a leg, the frame at least partially surrounds the auxiliary lens, the leg is connected to the frame, the leg is used to be worn on the side of the user's head, and the projection mirror is set on the frame.

[0010] In some embodiments, the frame includes a first area and a second area, the first area is adjacent to the side of the user's head, the second area is opposite to the center of the auxiliary lens, and the projection mirror is disposed in the first area or the second area.

[0011] In some embodiments, with reference to the user wearing it upright, the bracket has a horizontal first direction and a vertical second direction, and the bracket includes a top frame extending along the first direction and a border extending along the second direction; when the optical waveguide sheet is a two-dimensional pupil expansion waveguide sheet, the projection mirror is arranged in the middle of the top frame, the middle of the border, or at the junction of the top frame and the border.

[0012] In some embodiments, with reference to the user wearing the device upright, the bracket has a horizontal first direction and a vertical second direction, and the bracket includes a top frame extending along the first direction and a border extending along the second direction; when the optical waveguide sheet is a one-dimensional pupil expansion waveguide sheet, the projection mirror is arranged on the border and extends along the second direction.

[0013] In some embodiments, the auxiliary lens includes a left lens and a right lens, the frame includes a left frame, a right frame and a connecting beam, the left lens is fixed to the left frame, the right lens is fixed to the right frame, and the connecting beam is connected between the left frame and the right frame; the projection mirror is arranged on the connecting beam.

[0014] In some embodiments, when the augmented reality lens is in the first position, the optical waveguide extends from the left lens to the right lens, and the optical waveguide includes a left outcoupling grating opposite to the left lens and a right outcoupling grating opposite to the right lens.

[0015] In some embodiments, with reference to the user wearing the support upright, the second position includes above the support, below the support, or to the side of the user's head.

[0016] In some embodiments, the bracket includes a rotating mechanism, the augmented reality lens is connected to the rotating mechanism, and the rotating mechanism rotates when the augmented reality lens switches between the first position and the second position; the rotating mechanism is arranged adjacent to the projection mirror.

[0017] In some embodiments, the bracket further includes a fixing mechanism, and when the augmented reality lens is located at the first position, the fixing mechanism fixes the augmented reality lens.

[0018] In some embodiments, the auxiliary lens is a corrective lens, a protective lens, or a polarized lens.

[0019] In some embodiments, the augmented reality lens includes a first lens and / or a second lens. When the augmented reality lens is in the first position, the first lens faces the user's left eye, and the second lens faces the user's right eye.

[0020] On the other hand, a glasses frame is provided, comprising a bracket, an optical engine and an augmented reality lens, wherein the bracket is used to fix an auxiliary lens and is used to be worn on the user's head so that the auxiliary lens is located in front of the user's eyes; the optical engine comprises a projection mirror, which is arranged adjacent to the edge of the auxiliary lens; the augmented reality lens is movably connected to the frame, and when the augmented reality lens moves to a first position, the augmented reality lens blocks the side of the auxiliary lens away from the user's eyes, and a partial area of ​​the augmented reality lens is opposite to the projection mirror, so that the optical engine projects a virtual image onto the augmented reality lens, and when the augmented reality lens moves to a second position, the augmented reality lens cancels the blocking of at least a partial area of ​​the auxiliary lens; wherein, both the auxiliary lens and the augmented reality lens can transmit visible light. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figures 1 to 3 exemplarily show schematic diagrams of glasses when worn;

[0023] 4 to 6 exemplarily show schematic diagrams of another type of glasses when worn;

[0024] 7 and 8 exemplarily show schematic diagrams of another type of glasses when worn;

[0025] 9 and 10 exemplarily show schematic diagrams of another type of glasses when worn;

[0026] FIG11 exemplarily shows the structure of an optical waveguide sheet;

[0027] FIG12 exemplarily shows the structure of another optical waveguide sheet;

[0028] FIG13 exemplarily shows the structure of another optical waveguide sheet;

[0029] 14 to 18 exemplarily show schematic diagrams of an optical engine and an optical waveguide;

[0030] 19 to 22 exemplarily show top views of a pair of glasses;

[0031] FIG. 23 exemplarily shows a front view of a pair of glasses. Specific embodiments

[0032] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0033] In the embodiments of the present disclosure, words such as "first", "second", "third", and "fourth" are used to distinguish between identical or similar items with substantially the same functions and effects. This is only for the purpose of clearly describing the technical solutions of the embodiments of the present disclosure, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0034] In the embodiments of the present disclosure, “a plurality of” means two or more, and “at least one” means one or more, unless otherwise clearly and specifically defined.

[0035] In the embodiments of the present disclosure, the orientations or positional relationships indicated by terms such as “upper” and “lower” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present disclosure and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present disclosure.

[0036] Figures 1 to 3 illustrate schematic diagrams of a pair of glasses when worn, Figures 4 to 6 illustrate schematic diagrams of another pair of glasses when worn, Figures 7 to 8 illustrate schematic diagrams of another pair of glasses when worn, and Figures 9 to 10 illustrate schematic diagrams of another pair of glasses when worn. As shown in Figures 1 to 10, embodiments of the present disclosure provide glasses comprising a bracket 130, an auxiliary lens 120, an optical engine 160, and an augmented reality lens 110.

[0037] The bracket 130 serves as the frame of the glasses, supporting and connecting some or all of the components of the glasses. The bracket 130 includes a wearing portion that can be worn on the user's head. The wearing portion can have various structural forms.

[0038] Exemplarily, the wearing portion includes two opposing and spaced-apart legs 132, wherein one leg 132 is located on the left side of the user's head, and the other leg 132 is located on the right side of the user's head. When the glasses are worn, the two legs 132 clamp the user's head, thereby fixing the glasses on the user's head.

[0039] Of course, the wearing portion may also include a tightening strap, which at least partially surrounds the user's head when the glasses are worn, thereby securing the glasses to the user's head. The presently disclosed embodiments do not limit the specific structure and wearing method of the wearing portion. The wearing portion may be any existing or future wearing structure and wearing method, which will not be listed here.

[0040] In actual application, the wearing part may further include a nose pad. When the bracket 130 is worn on the user's head, the nose pad is supported on the user's nose bridge. The posture of the bracket 130 and its relative position to the user's head can be adjusted through the nose pad.

[0041] The bracket 130 can be made of metal material, plastic material, or a combination of metal and plastic materials. For example, when the bracket 130 includes legs 132 , the legs 132 are made of titanium alloy, and the structure outside the legs 132 is made of plastic material.

[0042] The auxiliary lens 120 can be a corrective lens, a protective lens, or a polarized lens. Corrective lenses can correct refractive errors and enhance vision. For example, the auxiliary lens 120 can be a myopia lens, a hyperopia lens, an astigmatism lens, or a reading lens. Protective lenses can block some light from entering the user's eyes, thereby reducing damage to the user's eyes. For example, the auxiliary lens 120 can be a blue light blocking lens, a sunglasses lens, or a welding goggles. Polarized lenses can pass light with a specific polarization direction while blocking light with other polarization directions. For example, the auxiliary lens 120 can be a polarized lens that allows the user to view 3D images. Of course, the auxiliary lens 120 can also be other existing or future lenses with certain features. The user can wear the auxiliary lens 120 to achieve specific functions besides augmented reality. The types of auxiliary lenses 120 are not listed here.

[0043] The auxiliary lens 120 is fixed to the bracket 130. When the bracket 130 is worn on the user's head, the auxiliary lens 120 is located in front of the user's eyes. It should be noted that various auxiliary lenses 120 can transmit at least part of visible light, allowing the user to observe the external environment through the auxiliary lens 120.

[0044] For example, the bracket 130 includes a frame 131 and two legs 132. The auxiliary lens 120 is fixed to the frame 131, and the legs 132 are connected to the frame 131. When the legs 132 clamp the user's head, the frame 131 and the auxiliary lens 120 are located in front of the user's face, and the auxiliary lens 120 is facing the user's glasses.

[0045] The frame 131 can partially surround the periphery of the auxiliary lens 120. In this case, the fixing structure between the auxiliary lens 120 and the frame 131 can refer to the structure of half-frame glasses in the related art. The frame 131 can also completely surround the periphery of the auxiliary lens 120. In this case, the fixing structure between the auxiliary lens 120 and the frame 131 can refer to the structure of full-frame glasses in the related art. The present embodiment is described only as an example in which the frame 131 completely surrounds the auxiliary lens 120.

[0046] Of course, the legs 132 may also be directly connected to the auxiliary lens 120 . In this case, the fixing structure of the auxiliary lens 120 and the legs 132 may refer to the structure of frameless glasses in the related art.

[0047] The optical engine 160 is used to project a virtual image toward the augmented reality lens 110, causing the augmented reality lens 110 to display the virtual image. The virtual image herein refers to an image generated by the optical engine 160 and displayed by the augmented reality lens 110, and containing certain specific information. For example, the virtual image may include prompt information, navigation information, etc. In actual applications, the virtual image may also display other types of information, which are not listed here.

[0048] The optical engine 160 can be either a monochromatic or a color optical engine. Figures 14 to 18 illustrate exemplary schematic diagrams of the operation of the optical engine and augmented reality lenses. As shown in Figures 14 to 18 , the optical engine 160 can include a microdisplay (not shown) and a projection lens 161. When the optical engine 160 is operating, the virtual image displayed on the microdisplay is projected onto the augmented reality lens 110 via the projection lens 161.

[0049] The micro display screen may be a near-eye display screen (NED), for example, the micro display screen may be a Micro LED display screen, or may be other display screens with higher pixel density.

[0050] The projection mirror 161 may include a single or multiple optical lenses, such as a prism, a bird bath (BB), or a free-form surface.

[0051] In actual application, the optical engine 160 may further include a communication module, such as a Bluetooth module, a 5G communication module, a WiFi module, etc. The optical engine 160 may further include a battery to provide power to the micro display screen, the communication module, etc.

[0052] The augmented reality lens 110 may be any existing or future lens that can receive the virtual image projected by the optical machine 160 and display the virtual image on the augmented reality lens 110 .

[0053] For example, the augmented reality lens 110 includes an optical waveguide plate, which can be a monochrome waveguide plate or a color waveguide plate; the color waveguide plate can be a single-layer color waveguide plate or a multi-layer color waveguide plate. The optical waveguide plate includes an input grating 111 and an output grating 112. The input grating 111 can receive the virtual image projected by the optical machine 160 and transmit it to the output grating 112, and the output grating 112 can display the received virtual image. The input grating 111 can be an optical element such as a rectangular grating, a tilted grating, a blazed grating, a volume holographic grating, a photonic crystal, or any combination thereof. The input grating 111 can be a one-dimensional grating or a two-dimensional grating. When the optical waveguide plate is a multi-layer color waveguide plate, the input grating 111 needs to be covered by the projection mirror 161 so that light can be coupled into the optical waveguide plate.

[0054] The optical waveguide sheet may be a one-dimensional pupil-expanding optical waveguide sheet or a two-dimensional pupil-expanding optical waveguide sheet.

[0055] Figure 11 illustrates an exemplary structure of a light guide. As shown in Figure 11, when the light guide is a one-dimensional pupil expansion light guide, it includes an incoupling grating 111 (a one-dimensional grating) and an outcoupling grating 112 (a two-dimensional grating). Light from the virtual image emitted by the optical engine 160 is coupled into the light guide via the incoupling grating 111. The light then undergoes total internal reflection and enters the outcoupling grating 112. At this point, a portion of the light is diffracted and directed into the user's eyes. Another portion of the light is split into two-way reflections, propagating forward. The light then enters the outcoupling grating 112 again, where it again enters the user's eyes. This process is repeated to achieve two-dimensional pupil expansion.

[0056] Figure 13 illustrates an exemplary structure of an optical waveguide. As shown in Figure 13, when the optical waveguide is a two-dimensional pupil expansion optical waveguide, the optical waveguide includes an incoupling grating 111, a turning grating 113, and an outcoupling grating 112, all of which are one-dimensional gratings. Light from the virtual image emitted by the optical engine 160 is coupled into the optical waveguide via the incoupling grating 111. The light then undergoes total internal reflection and is incident on the turning grating 113. A portion of the light is then deflected to the outcoupling grating 112, while another portion of the light continues to propagate forward through reflection and is then incident on the turning grating 113 again. At this point, a portion of the light is again deflected to the outcoupling grating 112. This process is repeated to achieve one-dimensional pupil expansion. Part of the light that hits the outcoupling grating 112 is diffracted and then transmitted into the user's glasses. Another part of the light continues to propagate forward through reflection and then strikes the outcoupling grating 112 again. At this point, another part of the light is transmitted into the user's glasses. This process repeats, achieving one-dimensional pupil expansion in the other direction. These two one-dimensional pupil expansions together constitute two-dimensional pupil expansion.

[0057] Figure 12 exemplarily shows the structure of another optical waveguide plate. As shown in Figure 12 , when the optical waveguide plate is a two-dimensional pupil expansion optical waveguide plate, the optical waveguide plate may also only include an incoupling grating 111 and an outcoupling grating 112 .

[0058] It should be noted that the augmented reality lens 110 can transmit at least a portion of visible light, allowing the user to observe the external environment through the augmented reality lens 110. In other words, the user's eyes can receive both the virtual image displayed by the augmented reality lens 110 and the real image of the external environment through the augmented reality lens 110, so that the image received by the user's eyes is a coupled image of the virtual image and the real image.

[0059] In the related art, AR glasses usually include a shell, and the optical machine 160 and the augmented reality lens 110 are arranged on this shell. When the user needs to observe the virtual image, it is necessary to wear the shell directly on the user's head or hang it on the auxiliary glasses (nearsighted glasses, hyperopia glasses, etc.) that the user is already wearing. That is, at this time the user needs to wear two pairs of glasses, auxiliary glasses and AR glasses, at the same time, which is cumbersome to wear and heavy. When the user does not need to observe the virtual image, it is necessary to remove the shell from the user's head or the auxiliary glasses already worn and store it to prevent the augmented reality lens 110 from blocking the light and affecting the user's observation of the real image. This makes the use of AR glasses inconvenient and the user experience is poor.

[0060] In view of this, in the glasses provided by the embodiments of the present disclosure, the augmented reality lens 110 and the auxiliary lens 120 are both connected to the bracket 130, and the position of the augmented reality lens 110 is movable. When the user needs to observe the virtual image, the augmented reality lens 110 is located in front of the user's eyes. When the user does not need to observe the virtual image, the augmented reality lens 110 can be moved away from the front of the user's eyes, thereby preventing the augmented reality lens 110 from blocking the line of sight.

[0061] The glasses can include AR mode and normal mode.

[0062] When the glasses are in AR mode, the augmented reality lens 110 is in the first position. At this point, both the auxiliary lens 120 and the augmented reality lens 110 are located directly in front of the user's eyes, with the augmented reality lens 110 obstructed on the side of the auxiliary lens 120 away from the user's eyes. Light from the external environment passes through the augmented reality lens 110 and the auxiliary lens 120 in sequence to enter the user's eyes. Light from the virtual image displayed by the augmented reality lens 110 passes through the auxiliary lens 120 to enter the user's eyes, resulting in the image received by the user's eyes comprising both the real image of the external environment and the virtual image displayed by the augmented reality lens 110. However, the term "obstruction" here does not mean complete blocking of visible light.

[0063] When the glasses are in normal mode, the augmented reality lens 110 is in the second position. At this time, the auxiliary lens 120 is located directly in front of the user's eyes, and the augmented reality lens 110 cancels the obstruction of at least part of the auxiliary lens 120. The augmented reality lens 110 may be outside the user's field of view or at the edge of the user's field of view. Some light from the external environment can directly pass through the auxiliary lens 120 and enter the user's eyes without passing through the augmented reality lens 110, reducing the obstruction of light by the augmented reality lens 110. The obstruction here does not mean completely blocking visible light.

[0064] Figures 3 and 6 illustrate schematic diagrams of the augmented reality lens 110 in the second position, with the user wearing the lens in an upright position as a reference. Figures 3 and 6 illustrate the second position as the side of the user's head. Of course, the second position can also be above or below the bracket 130.

[0065] The side of the user's head refers to the left or right side of the user's head. The side of the user's head has more space, making it easier to store the augmented reality lens 110. Furthermore, when the second position is the side of the user's head, the augmented reality lens 110 does not obstruct the user's face, improving the aesthetics.

[0066] The augmented reality lens 110 is movably connected to the bracket 130 so that the augmented reality lens 110 can be switched between a first position and a second position. Continuing with Figures 1 to 10 , for example, the bracket 130 includes a moving mechanism, and the augmented reality lens 110 is connected to the moving mechanism. During the process of switching between the first position and the second position, the moving mechanism maintains connection with the bracket 130 and the augmented reality lens 110. Furthermore, the moving mechanism can also serve as a guide, allowing the augmented reality lens 110 to switch between the first position and the second position along a movement trajectory defined by the moving mechanism.

[0067] The augmented reality lens 110 can be switched between the first position and the second position by flipping, folding, pulling, etc., which is not limited in the embodiment of the present disclosure.

[0068] Exemplarily, the augmented reality lens 110 switches between the first position and the second position by flipping. The bracket 130 includes a rotation mechanism 150, which is connected to the augmented reality lens 110. When the augmented reality lens 110 switches between the first position and the second position, the rotation mechanism 150 rotates. The rotation mechanism 150 may include a rotation axis to rotate the augmented reality lens 110 around the rotation axis; the rotation mechanism 150 may also include a ball joint to rotate the augmented reality lens 110 around the ball joint.

[0069] The augmented reality lens 110 can be switched between the first position and the second position automatically or manually. In the manual mode, for example, a user moves the augmented reality lens 110 with a finger to switch the augmented reality lens 110 between the first position and the second position. In the automatic mode, for example, a moving mechanism drives the augmented reality lens 110 between the first position and the second position via a driver such as a micromotor or a spring.

[0070] Unlike the augmented reality lens 110, which is movably connected to the bracket 130, the optical engine 160 is fixed relative to the bracket 130. When the augmented reality lens 110 is in the first position, a portion of the augmented reality lens 110 faces the projection mirror 161 of the optical engine 160, allowing the optical engine 160 to project a virtual image onto the augmented reality lens 110. For example, the augmented reality lens 110 includes a light waveguide. When the light waveguide is in the first position, the in-coupling grating 111 faces the projection mirror 161 of the optical engine 160, and the out-coupling grating 112 faces the auxiliary lens 120.

[0071] Since the optical machine 160 includes many components and is relatively large in size, fixing the optical machine 160 can facilitate the layout of the optical machine 160 and reduce the weight of the movable parts, thereby reducing the load of the moving mechanism, making it possible to design the moving mechanism smaller, and facilitating the miniaturization and lightweighting of the glasses.

[0072] Exemplarily, when the glasses switch between AR mode and normal mode, only the augmented reality lens 110 and the moving mechanism move, while other components remain fixed.

[0073] To prevent the projection mirror 161 of the optical engine 160 from obstructing the user's field of view while reducing the size of the glasses, the projection mirror 161 can be positioned adjacent to the edge of the auxiliary lens 120. For example, the projection mirror 161 is secured to the auxiliary lens 120 and positioned at the edge of the auxiliary lens 120, as shown in FIG18 . In another example, the projection mirror 161 can be secured to the bracket 130 and positioned adjacent to the edge of the auxiliary lens 120. When the projection mirror 161 is secured to the bracket 130, the bracket 130 can have a through-hole formed therein, into which the projection mirror 161 is mounted, as shown in FIG14 to FIG16 , or the projection mirror 161 can be attached to the outer surface of the bracket 130, as shown in FIG17 .

[0074] The light emitted by the microdisplay within the optical engine 160 can propagate along a straight line within the optical engine 160. For example, the light emitted by the projection lens 161 is directed in front of the user's eyes, and the microdisplay is located on the side of the projection lens 161 closest to the user's eyes. The light emitted by the microdisplay within the optical engine 160 can also propagate along a zigzag line within the optical engine 160. For example, the light emitted by the microdisplay first propagates in the left-right direction of the user, then propagates in the front-to-back direction of the user after passing through the prism. When the light propagates along a zigzag line, the size of the optical engine 160 in the front-to-back direction of the user can be reduced, thereby allowing the glasses to be designed to be thinner.

[0075] Figures 19 to 22 illustrate exemplary top views of a pair of glasses. As shown in Figures 15 to 17 and 19 to 22, when the bracket 130 includes a frame 131 and legs 132, the projection mirror 161 can be mounted on the frame 131. When the glasses are in AR mode, the frame 131 is closer to the augmented reality lens 110 than the legs 132, facilitating the projection of virtual images from the microdisplay screen onto the augmented reality lens 110 via the projection mirror 161.

[0076] When the projection mirror 161 is mounted on the frame 131, the microdisplay, battery, communication module, and other components of the optical engine 160 can be mounted on the frame 131 or on the legs 132. The frame 131 at least partially surrounds the auxiliary lens 120, providing ample space within the frame 131 for placement of other components within the optical engine 160.

[0077] The frame 131 includes a first area, which is adjacent to the side of the user's head. The projection mirror 161 can be placed in this area. Because the first area is adjacent to the side of the user's head and has more space on the side of the head, the first area near the user's eyes has more space. When the projection mirror 161 is placed in this first area, other components within the optical engine 160 can also be placed in this first area. This allows light within the optical engine 160 to propagate in a straight line, eliminating the need for a prism to alter the light's propagation direction, thus reducing the number of components within the optical engine 160.

[0078] The lens frame 131 also includes a second area, which is opposite the center of the auxiliary lens 120. The projection lens 161 can be located in this second area. The second area being opposite the center of the auxiliary lens 120 means that the second area is located on the horizontal bisector or the vertical bisector of the auxiliary lens 120. For example, if the auxiliary lens 120 is rectangular and includes a bisector perpendicular to the long side and a bisector perpendicular to the short side, the second area is located on the bisector perpendicular to the long side or the bisector perpendicular to the short side.

[0079] Since the optical waveguide plate is disposed opposite to the auxiliary lens 120, and the projection mirror 161 is disposed opposite to the coupling-in grating 111, when the projection mirror 161 is disposed in the second region, the coupling-in grating 111 is also located near the bisector of the optical waveguide plate, thereby making the brightness of the light emitted from each location of the coupling-out grating 112 more uniform.

[0080] Figure 23 illustrates an exemplary front view of a pair of glasses. As shown in Figure 23 , with the user wearing the glasses upright, the bracket 130 has a horizontal first direction X and a vertical second direction Y. The bracket 130 includes a top frame 1 extending along the first direction X and a side frame 2 extending along the second direction Y. The side frame 2 here refers to the side frame 2 near the side of the user's head.

[0081] When the optical waveguide is a two-dimensional pupil expansion waveguide, the area of ​​the coupling grating 111 is small, and accordingly the area of ​​the projection mirror 161 is also small. The projection mirror 161 can be set in the middle of the top frame 1, the middle of the side frame 2, or at the junction of the top frame 1 and the side frame 2.

[0082] When the optical waveguide is a one-dimensional pupil expansion waveguide, the coupling grating 111 is in a long strip shape, and accordingly the projection mirror 161 is also in a long strip shape. The projection mirror 161 is disposed on the frame 2 and extends along the second direction Y.

[0083] [Corrected 26.10.2023 in accordance with Rule 91] Continuing with FIG23 , auxiliary lens 120 includes left lens 121 and right lens 122. Lens frame 131 includes left frame 131a, right frame 131b, and connecting beam 131c. Left lens 121 is fixed to left frame 131a, right lens 122 is fixed to right frame 131b, and connecting beam 131c connects left frame 131a and right frame 131b. Projection mirror 161 is disposed on connecting beam 131c.

[0084] In actual application, when the augmented reality lens 110 is in the first position, the augmented reality lens 110 can block the left lens 121, as shown in Figures 1 and 2, or the right lens 122, as shown in Figures 4 and 5, or block both the left lens 121 and the right lens 122, as shown in Figures 7 and 9. When the augmented reality lens 110 blocks both the left lens 121 and the right lens 122, the dispersion phenomenon of the augmented reality lens 110 can be improved.

[0085] For example, the augmented reality lens 110 includes only the first lens. When the first lens is in the first position, the first lens faces the user's left eye. For another example, the augmented reality lens 110 includes only the second lens. When the second lens is in the first position, the second lens faces the user's right eye. For another example, the augmented reality lens 110 includes both the first lens and the second lens. When the first lens is in the first position, the first lens faces the user's left eye. When the second lens is in the first position, the second lens faces the user's right eye.

[0086] When the augmented reality lens 110 includes both a first lens and a second lens, the first lens and the second lens can be controlled separately, as shown in FIG7. For example, when the first lens is in the first position, the second lens can be in the first position or in the second position, as shown in FIG22.

[0087] Of course, the first lens and the second lens may also be an integrated structure, in which case the first lens and the second lens are simultaneously located at the first position or simultaneously located at the second position, as shown in FIG9 .

[0088] For example, when the augmented reality lens 110 includes a light waveguide sheet, when the light waveguide sheet is located at the first position, the light waveguide sheet extends from the left lens 121 to the right lens 122 of the auxiliary lens 120 .

[0089] The optical waveguide may include an outcoupling grating 112 extending from the left lens 121 to the right lens 122. This allows the user's left and right eyes to simultaneously observe virtual images emitted by the same outcoupling grating 112. The virtual images may include a first image projected to the left eye and a second image projected to the right eye. The first and second images may be the same or different.

[0090] At this time, the coupling-in grating 111 can be arranged corresponding to the central area of ​​the coupling-out grating 112, so that the brightness of each area of ​​the coupling-out grating 112 is more uniform. Accordingly, the projection mirror 161 can be located at the connecting beam 131c.

[0091] The optical waveguide plate may also include a left outcoupling grating 112 opposite to the left mirror 121 and a right outcoupling grating 112 opposite to the right mirror 122. In this case, the incoupling grating 111 is located between the left outcoupling grating 112 and the right outcoupling grating 112, so that the brightness of the left outcoupling grating 112 and the brightness of the right outcoupling grating 112 can be roughly the same.

[0092] When the moving mechanism includes a rotation mechanism 150, the projection mirror 161 can be positioned adjacent to the rotation mechanism 150. When the rotation mechanism 150 rotates, the closer the position is to the rotation axis or rotation point, the smaller the positional error after rotation. Positioning the projection mirror 161 adjacent to the rotation mechanism 150, and therefore the coupling grating 111 adjacent to the rotation mechanism 150, minimizes the relative positional error between the coupling grating 111 and the projection mirror 161 after rotation of the augmented reality lens 110. This allows the projection mirror 161 to accurately project virtual images onto the coupling grating 111.

[0093] The bracket 130 may further include a fixing mechanism 140 . When the augmented reality lens 110 is located at the first position, the fixing mechanism 140 fixes the augmented reality lens 110 to prevent the augmented reality lens 110 from shaking.

[0094] Exemplarily, the fixing mechanism 140 and the moving mechanism are arranged relative to each other, that is, the moving mechanism is located on one side of the augmented reality lens 110, and the fixing mechanism 140 is located on the other side of the augmented reality lens 110. At the same time, the augmented reality lens 110 is fixed on both sides, so that the position of the augmented reality lens 110 is more stable.

[0095] The present disclosure does not limit the specific structure of the fixing mechanism 140. The fixing mechanism 140 can fix the augmented reality lens 110 by clamping (such as a micro clamp) or by limiting (such as a fixed valve).

[0096] The fixing mechanism 140 may include a first fixing mechanism 140 and a second fixing mechanism 140 . When the augmented reality lens 110 is in the first position, the first fixing mechanism 140 fixes the augmented reality lens 110 . When the augmented reality lens 110 is in the second position, the second fixing mechanism 140 fixes the augmented reality lens 110 .

[0097] In actual use, when the augmented reality lens 110 needs to be moved from the first position to the second position, the first fixing mechanism 140 is opened, so that the augmented reality lens 110 can be moved along the moving mechanism to the second position and fixed by the second fixing mechanism 140. When the augmented reality lens 110 needs to be moved from the second position to the first position, the second fixing mechanism 140 is opened, so that the augmented reality lens 110 can be moved along the moving mechanism to the first position and fixed by the first fixing mechanism 140.

[0098] When the augmented reality lens 110 includes a first lens and a second lens, the bracket 130 may include two fixing mechanisms 140, one fixing mechanism 140 for fixing the first lens, and the other fixing mechanism 140 for fixing the second lens. Of course, the bracket 130 may also include only one fixing mechanism 140, which can be used to fix both the first lens and the second lens.

[0099] On the other hand, the embodiment of the present disclosure further provides a glasses frame, which includes a bracket 130, an optical engine 160 and an augmented reality lens 110. The bracket 130 is used to fix the auxiliary lens 120 and is used to be worn on the user's head so that the auxiliary lens 120 is located in front of the user's eyes; the optical engine 160 includes a projection mirror 161, which is arranged adjacent to the edge of the auxiliary lens 120; the augmented reality lens 110 is movably connected to the frame, and when the augmented reality lens 110 moves to a first position, the augmented reality lens 110 blocks the side of the auxiliary lens 120 away from the user's eyes, and a partial area of ​​the augmented reality lens 110 is opposite to the projection mirror 161, so that the optical engine 160 projects a virtual image on the augmented reality lens 110, and when the augmented reality lens 110 moves to a second position, the augmented reality lens 110 cancels the blocking of at least a partial area of ​​the auxiliary lens 120; wherein, both the auxiliary lens 120 and the augmented reality lens 110 can transmit visible light.

[0100] It should be noted that the bracket 130, optical machine 160 and augmented reality lens 110 in the glasses frame can be the same as the bracket 130, optical machine 160 and augmented reality lens 110 in the glasses. Their specific structure and setting method can refer to the above content and will not be repeated here.

[0101] The main difference between the spectacle frame provided in the disclosed embodiment and the aforementioned glasses is that the spectacle frame does not include auxiliary lenses 120. Users can install the required auxiliary lenses 120 on the bracket 130 as needed. For example, the user can obtain myopia lenses of a certain degree of myopia and then install the myopia lenses on the bracket 130 to assemble the aforementioned glasses. For another example, the user can obtain sunglasses lenses and then install the sunglasses lenses on the bracket 130 to assemble the aforementioned glasses.

[0102] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A pair of glasses, characterized in that: It includes a bracket, an auxiliary lens, an optical machine and an augmented reality lens, wherein the auxiliary lens is fixed to the bracket, and the bracket is used to be worn on the user's head so that the auxiliary lens is located in front of the user's eyes; The optical machine includes a projection mirror, and the projection mirror is arranged adjacent to the edge of the auxiliary lens; The augmented reality lens is movably connected to the bracket. When the augmented reality lens moves to a first position, the augmented reality lens blocks a side of the auxiliary lens away from the user's eyes, and a partial area of ​​the augmented reality lens is opposite to the projection lens, so that the optical machine projects a virtual image on the augmented reality lens. When the augmented reality lens moves to a second position, the augmented reality lens cancels the blocking of at least a partial area of ​​the auxiliary lens. Wherein, both the auxiliary lens and the augmented reality lens can transmit visible light.

2. The glasses according to claim 1, wherein: The augmented reality lens includes an optical waveguide plate, and the optical waveguide plate includes an in-coupling grating and an out-coupling grating. When the optical waveguide plate is located at the first position, the in-coupling grating is opposite to the projection mirror, and the out-coupling grating is opposite to the auxiliary lens.

3. The glasses according to claim 2, wherein: The projection mirror is arranged on the bracket or the auxiliary lens.

4. The glasses according to claim 3, wherein: The support comprises a frame and a leg, wherein the frame at least partially surrounds the auxiliary lens, the leg is connected to the frame, the leg is used to be worn on the side of the user's head, and the projection mirror is arranged on the frame.

5. The glasses according to claim 4, wherein: The frame includes a first area and a second area, wherein the first area is adjacent to the side of the user's head, and the second area is opposite to the center of the auxiliary lens, and the projection mirror is arranged in the first area or the second area.

6. The glasses according to claim 5, wherein: Taking the user wearing the device upright as a reference, the support has a horizontal first direction and a vertical second direction, and the support includes a top frame extending along the first direction and a frame extending along the second direction; When the optical waveguide sheet is a two-dimensional pupil expansion waveguide sheet, the projection mirror is arranged in the middle of the top frame, in the middle of the frame, or at the junction of the top frame and the frame.

7. The glasses according to claim 5, wherein: Taking the user wearing the device upright as a reference, the support has a horizontal first direction and a vertical second direction, and the support includes a top frame extending along the first direction and a frame extending along the second direction; When the optical waveguide sheet is a one-dimensional pupil expansion waveguide sheet, the projection mirror is arranged on the frame and extends along the second direction.

8. The glasses according to claim 4, wherein: The auxiliary lens comprises a left lens and a right lens, the lens frame comprises a left frame, a right frame and a connecting beam, the left lens is fixed to the left frame, the right lens is fixed to the right frame, and the connecting beam is connected between the left frame and the right frame; The projection mirror is arranged on the connecting beam.

9. The glasses according to claim 8, wherein: When the augmented reality lens is located at the first position, the optical waveguide plate extends from the left lens to the right lens, and the optical waveguide plate includes a left out-coupling grating opposite to the left lens and a right out-coupling grating opposite to the right lens.

10. The glasses according to claim 1, wherein: With reference to the user wearing the bracket upright, the second position includes the top of the bracket, the bottom of the bracket or the side of the user's head.

11. The glasses according to claim 10, wherein: The bracket includes a rotating mechanism, the augmented reality lens is connected to the rotating mechanism, and when the augmented reality lens switches between the first position and the second position, the rotating mechanism rotates; the rotating mechanism is arranged adjacent to the projection mirror.

12. The glasses according to claim 11, wherein: The bracket also includes a fixing mechanism, and when the augmented reality lens is located at the first position, the fixing mechanism fixes the augmented reality lens.

13. The glasses according to claim 1, wherein: The auxiliary lens is a corrective lens, a protective lens or a polarized lens.

14. The glasses according to claim 1, wherein: The augmented reality lens includes a first lens and / or a second lens. When the augmented reality lens is located at the first position, the first lens faces the user's left eye, and the second lens faces the user's right eye.

15. A spectacle frame, characterized in that: It includes a bracket, an optical machine and an augmented reality lens, wherein the bracket is used to fix the auxiliary lens and is used to be worn on the user's head so that the auxiliary lens is located in front of the user's eyes; The optical machine includes a projection mirror, and the projection mirror is arranged adjacent to the edge of the auxiliary lens; The augmented reality lens is movably connected to the frame. When the augmented reality lens moves to a first position, the augmented reality lens blocks a side of the auxiliary lens away from the user's eyes, and a partial area of ​​the augmented reality lens is opposite to the projection mirror, so that the optical machine projects a virtual image on the augmented reality lens. When the augmented reality lens moves to a second position, the augmented reality lens cancels the blocking of at least a partial area of ​​the auxiliary lens. Wherein, both the auxiliary lens and the augmented reality lens can transmit visible light.

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