Ar glasses having vision correction function

Abstract

AR glasses having a vision correction function. A microcavity is provided between an optical waveguide lens (1) and a human eye and a liquid is injected into the microcavity, and when the refractive index of the injected liquid is different, an optical system consisting of the optical waveguide lens (1) and the microcavity has a different effective focal length. The outer surfaces of the microcavities can be made into flat surfaces, and the microcavities and the optical waveguide lenses (1) are attached to fabricate AR glasses, which can adapt to users of different dioptric power, thereby solving the problem related to vision correction by AR glasses.

Description

AR glasses with vision correction function

[0001] Cross-references of related documents

[0002] The present application claims priority to the Chinese patent application No. 2024108972490, filed on July 5, 2024, and entitled "AR glasses with vision correction function", the content of which is incorporated herein by reference in its entirety TECHNICAL FIELD

[0003] Embodiments of the present application belong to the field of AR technology, and particularly relate to AR glasses with vision correction function. BACKGROUND

[0004] At present, the AR glasses market has broad prospects, and optical waveguide lenses are considered to be the mainstream technology in the future due to their light weight and high light transmittance. However, AR glasses are not friendly to people with refractive errors, and usually need to be equipped with additional configurations and designs for vision correction. There are generally three ways to correct vision for optical waveguide AR glasses: the first is to directly wear myopia glasses for viewing, which will cause interference of structural parts, discomfort, and it is difficult to adjust to the best viewing effect, making it impossible to wear for a long time, or even all day; the second is to additionally equip a suction type myopia lens, which is still in the form of separation of glasses and lenses, affecting the appearance; the third is to directly paste the optical waveguide lens and the flat concave or convex lens, which requires different degrees of lenses to be made at the factory, and also needs to consider the difference between the left and right eyes. If astigmatism is also considered, more combinations of degrees are needed, corresponding to a very large number of lens versions, which is not suitable for mass production. TECHNICAL SOLUTION

[0005] In order to solve or alleviate the problems in the prior art, the present application provides AR glasses with vision correction function, which can adapt to users with different degrees, thereby solving the problem of vision correction of AR glasses.

[0006] The present application provides AR glasses with vision correction function, which includes a correction lens and an optical waveguide lens.

[0007] The correction lens is arranged between the optical waveguide lens and the human eye.

[0008] The correction lens includes a microcavity, and a liquid is arranged in the microcavity.

[0009] By adjusting the type of liquid arranged in the microcavity, the refractive power of the optical waveguide lens is adjusted.

[0010] As a preferred embodiment of the present application, the power mechanism, the first liquid storage pipeline, the second liquid storage pipeline and the electromagnetic valve are further included.

[0011] The power mechanism is in communication with the first liquid storage pipeline, and the first liquid storage pipeline and the second liquid storage pipeline are both in communication with the microcavity.

[0012] The liquid in the first liquid storage pipeline is driven by the power mechanism to flow into the microcavity to replace the original liquid in the microcavity and discharge the original liquid in the microcavity to the second liquid storage pipeline, or the liquid in the second liquid storage pipeline is sucked into the microcavity by the power mechanism, and the original liquid in the microcavity is discharged to the first liquid storage pipeline.

[0013] Or,

[0014] The power mechanism, the first liquid storage pipeline and the second liquid storage pipeline are further included.

[0015] The power mechanism is in communication with the first liquid storage pipeline, and the first liquid storage pipeline and the second liquid storage pipeline are both in communication with the microcavity.

[0016] The liquid in the first liquid storage pipeline is driven by the power mechanism to flow into the microcavity to replace the original liquid in the microcavity and discharge the original liquid in the microcavity to the second liquid storage pipeline, or the liquid in the second liquid storage pipeline is sucked into the microcavity by the power mechanism, and the original liquid in the microcavity is discharged to the first liquid storage pipeline.

[0017] As a preferred embodiment of the present application, the power mechanism, the first liquid storage pipeline, the second liquid storage pipeline and the electromagnetic valve are further included.

[0018] The power mechanism is in communication with the first liquid storage pipeline, and the first liquid storage pipeline and the second liquid storage pipeline are both in communication with the microcavity.

[0019] As a preferred embodiment of the present application, the power mechanism is a hydraulic pump.

[0020] As a preferred embodiment of the present application, the liquid is an inorganic salt solution or glycerol, and the gas is nitrogen or an inert gas of group 0 elements or a gas that is insoluble in water.

[0021] As a preferred embodiment of the present application, the microcavity includes a first shell, a spiral microchannel, a first liquid inlet and a first liquid outlet.

[0022] The spiral microchannel is arranged in the first shell, and the first liquid inlet and the first liquid outlet are respectively communicated with the spiral microchannel.

[0023] The liquid in the microcavity flows into the spiral microchannel through the first liquid inlet, and the power mechanism drives the liquid to flow in the spiral microchannel, and the liquid flows out through the first liquid outlet.

[0024] As a preferred embodiment of the present application, the microcavity comprises a second shell, a first exhaust port and a second liquid inlet.

[0025] The first exhaust port and the second liquid inlet are respectively communicated with the second shell.

[0026] As a preferred embodiment of the present application, the microcavity comprises a third shell, a second exhaust port, a third exhaust port, a third liquid inlet and a fourth liquid inlet, and a partition;

[0027] The partition is arranged in the third shell to divide the third shell into a first chamber and a second chamber.

[0028] The second exhaust port and the third liquid inlet are respectively communicated with the first chamber, and the third exhaust port and the fourth liquid inlet are respectively communicated with the second chamber.

[0029] As a preferred embodiment of the present application, the second exhaust port and the third exhaust port are arranged on the same side, and the third liquid inlet and the fourth liquid inlet are arranged on the opposite side of the second exhaust port and the third exhaust port.

[0030] As a preferred embodiment of the present application, the cross section of the microcavity is the same as the cross section of the corresponding optical waveguide lens, and there is an air gap between the microcavity and the optical waveguide lens. Advantages

[0031] Compared with the prior art, the embodiment of the present application provides an AR glasses with vision correction function, by arranging a microcavity between the optical waveguide lens and the human eye, and injecting liquid into the microcavity, when the refractive index of the injected liquid is different, the optical system composed of the optical waveguide lens and the microcavity will form different effective focal lengths; since the outer surface of the microcavity can be made into a plane, the microcavity and the optical waveguide lens are pasted to make AR glasses, which can adapt to users with different degrees, thereby solving the problem of vision correction of AR glasses. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0033] Fig. 1 is a schematic diagram of an AR glass with vision correction function according to an embodiment of the present application;

[0034] Fig. 2 is a schematic diagram of a vertical cross-section structure of a microcavity of the AR glass with vision correction function according to an embodiment of the present application;

[0035] Fig. 3 is a schematic diagram of a horizontal cross-section structure of a microcavity of the AR glass with vision correction function according to an embodiment of the present application;

[0036] Fig. 4 is a schematic diagram of an AR glass with vision correction function according to an embodiment of the present application;

[0037] Fig. 5 is a schematic diagram of a microcavity of the AR glass with vision correction function according to an embodiment of the present application;

[0038] Fig. 6 is a schematic diagram of a microcavity of the AR glass with vision correction function according to an embodiment of the present application. Embodiments of the present application

[0039] In order to make the personnel in the technical field better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application. Embodiments

[0040] As shown in Fig. 1, the present application provides an optical waveguide lens with vision correction function. The optical waveguide lens is a planar structure lens, which is generally made of high refractive index glass or resin material. Since the AR glass needs to watch the display content and the real world at the same time, the correction lens 2 needs to be arranged between the optical waveguide lens 1 and the human eye when solving the vision correction problem of the AR glass.

[0041] The present application injects liquid into the microcavity in an electronic control manner.

[0042] The embodiment of the present application provides a light wave guide lens with vision correction function, which comprises a correction lens 2, a light wave guide lens 1, a power mechanism 5, a first liquid storage pipeline 3, a second liquid storage pipeline 4, an electromagnetic valve 7 and a dioptric power display device 6.

[0043] The correction lens 2 is arranged between the light wave guide lens 1 and a human eye.

[0044] The correction lens 2 comprises a microcavity, a kind of liquid is arranged in the microcavity, and a plurality of the liquids are separated by inert gas; by adjusting the kind of liquid arranged in the microcavity, the dioptric power of the light wave guide lens 1 is adjusted, in addition, only gas can be arranged in the microcavity, and the focal length of the light wave guide lens 1 is determined by the gas.

[0045] In the embodiment of the present application, the cross section of the microcavity is the same as the cross section of the corresponding light wave guide lens 1, and there is an air gap between the microcavity and the light wave guide lens 1.

[0046] The power mechanism 5 is communicated with the first liquid storage pipeline 3, the first liquid storage pipeline 3 and the second liquid storage pipeline 4 are both communicated with the microcavity; different liquids are arranged in the first liquid storage pipeline 3, and the different liquids are separated by gas, and the gas in the first liquid storage pipeline 3 can be the same or different, and the gas in the second liquid storage pipeline 4 can be the same.

[0047] The liquid in the first liquid storage pipeline 3 is driven to flow into the microcavity by the power mechanism 5, so as to replace the original liquid in the microcavity and discharge the original liquid in the microcavity to the second liquid storage pipeline 4; or the liquid in the second liquid storage pipeline 4 is sucked into the microcavity by the power mechanism 5, and the original liquid in the microcavity is discharged to the first liquid storage pipeline 3, the electromagnetic valve 7 is communicated with the second liquid storage pipeline 4. The dioptric power display device 6 is connected with the power mechanism 5, and is used for displaying the dioptric power corresponding to the power output by the power mechanism 5.

[0048] In the embodiment of the present application, the first liquid storage pipeline 3 and the second liquid storage pipeline 4 are arranged in a spiral or arc winding manner to increase the length and save space; the first liquid storage pipeline 3 and the second liquid storage pipeline 4 store liquids with different refractive indexes in an alternating form of liquid with refractive index n1-inert gas (or nitrogen) - liquid with refractive index n2-air (or nitrogen); when the power mechanism 5 and the electronic valve are opened at the same time, the liquid in the first liquid storage pipeline 3, the second liquid storage pipeline 4 and the microcavity can be driven to flow, so that the liquid in the microcavity is replaced by controlling the voltage of the power mechanism 5; because the microcavity has a Fresnel type microstructure surface, different liquids matched with the Fresnel structure can produce different optical powers, that is, different diopter adjustments are realized; by calibration, the flow of the liquid and the opening time of the power mechanism 5 are corresponding to the type of liquid in the microcavity, and the type of liquid corresponds to the focal length of light, so that the data are converted and displayed in the form of diopter on the diopter display device 6.

[0049] In the embodiment of the present application, the first liquid storage pipeline 3 and the second liquid storage pipeline 4 can be hoses made of Teflon, silica gel and the like, and the first liquid storage pipeline 3 and the second liquid storage pipeline 4 can be or other liquids that are not easy to chemically react with the materials of the first liquid storage pipeline 3, the second liquid storage pipeline 4 and the microcavity, the inert gas in the embodiment of the present application is nitrogen or an inert gas of group 0 elements or a gas that is not soluble in water, wherein the group 0 elements are IUPAC 18 group elements, including helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn) and gas og (Og), which can emit light when electrified, and generally has stable chemical properties due to the full arrangement of the outermost electrons. It is not easy to chemically react.

[0050] In the embodiment of the present application, the power mechanism 5 and the electromagnetic valve 7 need to be triggered synchronously, and the power mechanism 5 can realize positive pressure and negative pressure, that is, the liquid in the first liquid storage pipeline 3 can be pressed into the microcavity, and the original liquid in the microcavity can be discharged to the second liquid storage pipeline 4; or the liquid in the second liquid storage pipeline 4 can be sucked into the microcavity, and the original liquid in the microcavity can be discharged to the first liquid storage pipeline 3.

[0051] As shown in FIGS. 2 and 3, in the embodiment of the present application, the microcavity includes a first shell 23, a spiral microchannel 24, a first liquid inlet 21 and a first liquid outlet 22;

[0052] The spiral microchannel 24 is arranged in the first shell 23, and the first liquid inlet 21 and the first liquid outlet 22 are respectively communicated with the spiral microchannel 24;

[0053] The liquid in the microcavity flows into the spiral microchannel 24 through the first liquid inlet 21, and then is driven by the power mechanism 5 to flow in the spiral microchannel 24, and finally flows out through the first liquid outlet 22. The liquid flows in the spiral microchannel 24 according to the flow path 25.

[0054] In the embodiment of the present application, the thickness of the liquid in the microcavity is several microns to several hundred microns; the inner part of the front shell of the microcavity has a Fresnel surface, which can be designed to have different focal lengths and can be positive or negative; taking the case where the structure of the surface of the front shell of the microcavity is positive as an example, when the refractive index of the liquid is less than that of the surface of the front shell of the microcavity, the entire microcavity corresponds to a positive focal length, in which case the smaller the refractive index of the liquid, the shorter the focal length; when the refractive index of the liquid is greater than that of the surface of the front shell of the microcavity, the entire microcavity corresponds to a negative focal length, in which case the greater the refractive index of the liquid, the shorter the focal length; when the refractive index of the liquid is equal to that of the surface of the front shell of the microcavity, the entire microcavity is equivalent to a flat optical structure, and the focal length is infinite.

[0055] The spiral microchannel 24 is arranged in the first shell 23, which can make the liquid flow from the first liquid inlet 21 to the first liquid outlet 22, and vice versa, thereby ensuring that the liquid in the first liquid storage pipeline 3 or the second liquid storage pipeline 4 does not form a flow break when entering the microcavity, and even finally forms a bubble, and at the same time ensuring that the gas between different liquids in the first liquid storage pipeline 3 or the second liquid storage pipeline 4 flows smoothly out of the liquid originally in the microcavity.

[0056] In the embodiment of the present application, the power mechanism 5 is a manual piston tube or a piezoelectric pump or other micro-pump. Embodiment

[0057] As shown in FIG. 4, the AR glasses of the second embodiment are different from those of the first embodiment in that the AR glasses further include a power mechanism 5, a first liquid storage pipeline 3 and a second liquid storage pipeline 4, but do not include an electromagnetic valve.

[0058] The power mechanism 5 is connected to the first liquid storage pipeline 3, the first liquid storage pipeline 3 and the second liquid storage pipeline 4 are both connected to the microcavity, the second liquid storage pipeline 4 is further connected to the power mechanism 5, different liquids are arranged in the first liquid storage pipeline 3, and the different liquids are separated by gas;

[0059] The liquid in the first liquid storage pipeline 3 is driven by the power mechanism 5 to flow into the microcavity, so as to replace the original liquid in the microcavity and discharge the original liquid in the microcavity to the second liquid storage pipeline 4; or the liquid in the second liquid storage pipeline 4 is sucked into the microcavity by the power mechanism 5, and the original liquid in the microcavity is discharged to the first liquid storage pipeline 3.

[0060] The end of the second liquid storage pipeline 4 (connected to the electromagnetic valve 7 in the first embodiment) is connected to one end of the power mechanism 5 to form a closed loop structure, so that the power mechanism 5 can realize the flow of liquid in the microcavity and the liquid storage pipeline, and achieve the effect of switching the liquid in the first liquid storage pipeline 3 and the second liquid storage pipeline 4 and changing the focal length. The power mechanism 5 in this embodiment can be a one-way pressure pump. Embodiment

[0061] It should be noted that the difference between the third embodiment and the first embodiment or the second embodiment is that the microcavity structure is different and the way of injecting liquid is different.

[0062] In the embodiment of the application, as shown in Figure 5, the microcavity includes a second housing 27, a first exhaust port 26 and a second liquid inlet 29; the first exhaust port 26 and the second liquid inlet 29 are respectively in communication with the second housing 27. In this third embodiment, no isolating piece is arranged in the microcavity, so the microcavity stores liquid 28.

[0063] In the embodiment of the application, as long as different refractive index liquids can be injected into the microcavity, it belongs to the protection scope of the embodiment of the application, that is, if a non-electronic control mode is adopted, such as manually adjusting the liquid injection into the microcavity, the AR glasses will provide the user with a plurality of diopter numbers corresponding to the first liquid storage pipeline 3 and the second liquid storage pipeline 4 when leaving the factory. The user can inject the liquid corresponding to the user's own diopter number from the second liquid inlet 29. A detachable sealing plug is arranged on the microcavity to ensure that the microcavity can be sealed after being filled with liquid. The user can also replace the liquid to realize the adjustment of the diopter. In this case, the microcavity does not need a cavity interval. When injecting liquid, it is recommended to slowly inject from the bottom second liquid inlet 29 to prevent bubbles. When discharging liquid, it is also recommended to extract from the bottom second liquid inlet 29 to prevent liquid droplets from remaining. Embodiment

[0064] As shown in Figure 6, the difference between the fourth embodiment and the third embodiment is that the microcavity structure is different.

[0065] The microcavity includes a third housing 35, a second exhaust port 31, a third exhaust port 30, a third liquid inlet 36, a fourth liquid inlet 37 and an isolating piece 33; the isolating piece 33 is arranged in the third housing 35 to divide the third housing 35 into a first cavity 32 and a second cavity 34.

[0066] The second exhaust port 31 and the third liquid inlet 36 are respectively in communication with the first cavity 32, and the third exhaust port 30 and the fourth liquid inlet 37 are respectively in communication with the second cavity 34.

[0067] The surface of the spacer 33 can be convex or concave, the concave type mainly corresponds to the concave lens, the convex type corresponds to the convex lens, and the same reason can also only keep one chamber, but the ability to adjust the refractive power is decreased, and the method of keeping one chamber specifically includes: not using one of the chambers, or making the hollow of one of the chambers solid, so that the other chamber cannot keep the liquid.

[0068] The optical waveguide lens of the fourth embodiment has better imaging effect than the third embodiment.

[0069] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An AR glass with vision correction function, characterized by, The present application relates to a kind of optical lens, comprising correction lens and optical waveguide lens; The correction lens is arranged between the optical waveguide lens and human eye; The correction lens comprises microcavity, and a kind of liquid is arranged in the microcavity; By adjusting the kind of liquid arranged in the microcavity, in turn, the refractive power of the optical waveguide lens is adjusted.

2. The AR glasses with vision correction function of claim 1, wherein, Further comprising power mechanism, first liquid storage pipeline, second liquid storage pipeline and electromagnetic valve; The power mechanism is communicated with the first liquid storage pipeline, the first liquid storage pipeline and the second liquid storage pipeline are all communicated with the microcavity, different liquids are arranged in the first liquid storage pipeline, and different liquids are isolated by gas; By the power mechanism, the liquid in the first liquid storage pipeline is driven to flow into the microcavity, to replace the original liquid in the microcavity, and the original liquid in the microcavity is discharged to the second liquid storage pipeline;Or by the power mechanism, the liquid in the second liquid storage pipeline is sucked into the microcavity, and the original liquid in the microcavity is discharged to the first liquid storage pipeline, and the electromagnetic valve is communicated with the second liquid storage pipeline; Or, Further comprising power mechanism, first liquid storage pipeline and second liquid storage pipeline; The power mechanism is communicated with the first liquid storage pipeline, the first liquid storage pipeline and the second liquid storage pipeline are all communicated with the microcavity, the second liquid storage pipeline is further connected with the power mechanism, different liquids are arranged in the first liquid storage pipeline, and different liquids are isolated by gas; By the power mechanism, the liquid in the first liquid storage pipeline is driven to flow into the microcavity, to replace the original liquid in the microcavity, and the original liquid in the microcavity is discharged to the second liquid storage pipeline;Or by the power mechanism, the liquid in the second liquid storage pipeline is sucked into the microcavity, and the original liquid in the microcavity is discharged to the first liquid storage pipeline.

3. The AR glasses with vision correction function of claim 2, wherein, Further comprising refractive power display device; The refractive power display device is connected with the power mechanism, and is used to display the refractive power corresponding to the power output by the power mechanism.

4. The AR glasses with vision correction function of claim 2, wherein, The power mechanism is hydraulic pump.

5. The AR glasses with vision correction function of claim 2, wherein, The liquid is inorganic salt solution or glycerol, and the gas is nitrogen or inert gas of group 0 element or gas insoluble in water.

6. The AR glasses with vision correction function of claim 2, wherein, The microcavity comprises first shell, spiral microchannel, first liquid inlet and first liquid outlet; The spiral microchannel is arranged in the first shell, and the first liquid inlet and the first liquid outlet are respectively communicated with the spiral microchannel; The liquid in the microcavity flows into the spiral microchannel through the first liquid inlet, and then a plurality of the liquid is driven to flow in the spiral microchannel by the power mechanism, and flows out through the first liquid outlet.

7. The AR glasses with vision correction function of claim 1, wherein, The microcavity comprises second shell, first exhaust port and second liquid inlet; The first exhaust port and the second liquid inlet are respectively communicated with the second shell.

8. The AR glasses with vision correction function of claim 1, wherein, The microcavity comprises third shell, second exhaust port, third exhaust port, third liquid inlet and fourth liquid inlet and isolation piece; The isolation piece is arranged in the third shell to divide the third shell into first chamber and second chamber; The second exhaust port and the third liquid inlet are respectively communicated with the first chamber, and the third exhaust port and the fourth liquid inlet are respectively communicated with the second chamber.

9. The AR glasses with vision correction function of claim 8, wherein, The second exhaust port and the third exhaust port are arranged on the same side, and the third liquid inlet and the fourth liquid inlet are arranged on the opposite side of the second exhaust port and the third exhaust port. 10.The AR glasses with vision correction function of claim 1, wherein, The cross section of the microcavity is the same as the cross section of the corresponding optical waveguide lens, and there is an air gap between the microcavity and the optical waveguide lens.

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