Interpupillary distance adjusting structure for correction lenses of AR glasses

Abstract

The utility model discloses an AR glasses correction lens interpupillary distance adjusting structure, a glasses frame comprises a left glasses frame subsection used for installing a left lens and a right glasses frame subsection used for installing a right lens, and at least one of the left glasses frame subsection and the right glasses frame subsection is provided with a correction lens assembly. The upper edges and the lower edges of the left glasses frame part and the right glasses frame part extend in the horizontal direction, clamping frames of the correction lens assemblies are slidably clamped to the upper edges and the lower edges of the glasses frame parts through clamping grooves, and the clamping frames are provided with first magnetic attraction pieces. The left glasses frame part and the right glasses frame part are provided with second magnetic attraction pieces matched with the first magnetic attraction pieces. According to the technical scheme, the correction lens assembly can slide in the horizontal direction and can be positioned to any sliding position through magnetic attraction positioning, so that when different users wear the glasses, the center position of the correction lens can be always adjusted to coincide with pupils of the users, and the wearing comfort and the using effect of the users are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of AR display, and in particular to a pupil distance adjustment structure of an AR glasses correction lens. Background Art

[0002] Augmented Reality (AR) display is an emerging display technology that superimposes real-world information and virtual information on the same screen or space in real time. After the user wears the corresponding near-eye display device, the human eye can receive natural ambient light and virtual images superimposed on the natural environment in real time, achieving a sensory experience beyond reality. Generally speaking, in actual application scenarios, AR display can be achieved through near-eye display devices such as AR glasses.

[0003] For AR glasses, the optical effect itself cannot meet the needs of users who usually wear glasses. In order to facilitate users to use AR glasses and correct their vision problems such as refraction, astigmatism, presbyopia, myopia, hyperopia, etc., a set of vision correction lenses can be added.

[0004] As for the structure of AR glasses, the closer it is to the size and weight of traditional glasses, the higher the user acceptance will be. Existing VR and AR devices usually have a large head-mounted structure and volume, so when additional corrective lens structures are set on existing VR and AR devices, the volume of the structure is usually not considered, such as screw fastening, separately setting corrective frames, etc. At the same time, the position of the existing additional corrective lenses is usually fixed, which makes it difficult for the position structure of the corrective lenses to meet the different pupil distances of different users.

[0005] Therefore, how to reduce the structure of the corrective glasses as much as possible while making the pupil distance of the corrective lenses adjustable has become a technical problem that needs to be solved. Utility Model Content

[0006] The embodiment of the utility model provides an AR glasses corrective lens pupil distance adjustment structure, which is used to at least solve the technical problem that the corrective lens pupil distance of existing smart glasses is difficult to adjust.

[0007] In order to achieve the above-mentioned purpose of the utility model, the embodiment of the utility model provides an AR glasses corrective lens pupil distance adjustment structure, including a frame, wherein the frame includes a left frame section for mounting a left lens and a right frame section for mounting a right lens, the left frame section and the right frame section are fixedly connected as a whole through a connecting beam, and at least one of the left frame section and the right frame section is installed with a corrective lens assembly,

[0008] The upper edge and the lower edge of the left frame section and the right frame section both extend in the horizontal direction. The corrective lens assembly comprises a clamping frame and a corrective lens body. The corrective lens body is installed in the clamping frame. The upper and lower parts of the clamping frame are slidably clamped to the upper and lower edges of the frame section through clamping grooves. The clamping frame and the corrective lens body are parallel to the lenses in the frame and are located directly behind the corresponding side lenses.

[0009] A first magnetic component is provided on the upper and / or lower part of the clip-on frame, and a second magnetic component cooperating with the first magnetic component is provided on the upper and / or lower edges of the left frame section and the right frame section. The first magnetic component and the second magnetic component cooperate with each other so that when the clip-on frame slides to any position along the upper and lower edges of the frame section, the first magnetic component and the second magnetic component can attract each other for positioning.

[0010] The utility model enables the corrective lens assembly to slide in the horizontal direction and can be positioned to any sliding position by magnetic attraction, so that when different users wear glasses, the center position of the corrective lens can always be adjusted to coincide with the user's pupil.

[0011] For example, optionally, a first magnetic member is disposed on the upper portion of the clamping frame, and a second magnetic member is disposed on the upper edges of the left and right frame sections. Also optionally, a first magnetic member is disposed on the lower portion of the clamping frame, and a second magnetic member is disposed on the lower edges of the left and right frame sections.

[0012] In order to make the first magnetic member and the second magnetic member attract each other to position when the clamping frame slides to any position along the upper edge and the lower edge of the frame section, at least one of the first magnetic member and the second magnetic member is a strip member extending in the horizontal direction. For example, the first magnetic member is a magnetic strip extending in the horizontal direction and is arranged on the bottom surface of the lower edge of the left frame section and the right frame section, and the second magnetic member is one or more magnetic blocks, and is arranged on the bottom surface of the lower edge of the left frame section or the right frame section. Thereby, when the clamping frame slides horizontally along the upper edge and the lower edge of the left frame section or the right frame section, the magnetic block always contacts the magnetic strip, and the magnetic block and the contacting magnetic strip attract each other to form magnetic positioning. Of course, it is also optional that the first magnetic member is one or more magnetic blocks, and the second magnetic member is a magnetic strip extending in the horizontal direction; it is also optional that the first magnetic member and the second magnetic member are both magnetic strips extending in the horizontal direction.

[0013] The upper and lower parts of the clamping frame are both provided with clamping grooves for clamping on the upper and lower edges of the mirror frame sub-parts, and the clamping grooves can be slidably clamped on the upper and lower edges of the mirror frame sub-parts.

[0014] Optionally, the clamping frame is provided with a dovetail groove, and the corresponding position of the corrective lens body is provided with a dovetail connection part that matches the dovetail groove, and the dovetail connection part of the corrective lens body is installed in the dovetail groove; also optionally, the clamping frame is provided with a dovetail connection part, and the corresponding position of the corrective lens body is provided with a dovetail groove that matches the dovetail connection part, and the dovetail groove of the corrective lens body is fitted in the dovetail connection part. The above structure enables the clamping frame to be suitable for corrective lenses of different thicknesses and degrees.

[0015] Furthermore, the snap-on frame includes a bracket body for installing the corrective lens body, and the upper and lower parts of the bracket body are both provided with snap-on parts for snapping into corresponding frame parts, and the snap-on parts are both provided with snap-on grooves, and the snap-on parts are correspondingly snap-on to the upper edge and lower edge of the frame part, and the upper edge and lower edge of the frame part are accommodated in the snap-on grooves of the corresponding snap-on parts.

[0016] During specific use, according to the user's vision, a corrective lens assembly with a corrective lens body of corresponding degree can be installed on the left frame section, and a corrective lens assembly with a corrective lens body of corresponding degree can be installed on the right frame section. Of course, if the user's left eye or right eye has normal vision, it is not necessary to install a corrective lens assembly on the corresponding side.

[0017] A left temple and a right temple are respectively arranged on the left and right sides of the frame, and an image display element is arranged on the front part of at least one of the left temple and the right temple. The image display element includes an image source that emits image light to the lens on the corresponding side and an imaging lens group arranged on the output light path of the image source. The lens that receives the image light emitted by the image display element is a waveguide lens, and the waveguide lens is used to guide the image light emitted by the image display element and the external real environment light into the human eye.

[0018] The front part of the left temple and / or the front part of the right temple is provided with a receiving cavity for installing the image display element, the receiving cavity is a cavity with an opening on the front side, the image display element is installed in the receiving cavity, and the coupling unit of the waveguide lens matched with the image display element is located directly in front of the image display element.

[0019] Optionally, the image source may be a fiber scanning image source, an LCD image source, an LED image source, an LCoS image source, a DLP image source, an OLED image source, or other image sources.

[0020] Preferably, the image source is an optical fiber scanning image source. The optical fiber scanning image source comprises a light source, a scanning driver and an optical fiber, wherein the scanning driver is fixedly arranged at the front of the left temple or the right temple through a support, the front end of the scanning driver is a free end, and the free end performs a two-dimensional scanning motion relative to its fixed end under the drive of a driving signal, the optical fiber output end is fixedly arranged at the free end of the scanning driver in a cantilever support manner, and the optical fiber light input end is connected to the light source.

[0021] One or more technical solutions in the embodiments of the present utility model have at least the following technical effects or advantages:

[0022] The utility model enables the corrective lens assembly to slide in the horizontal direction and can be positioned to any sliding position by magnetic attraction, so that when different users wear glasses, the center position of the corrective lens can always be adjusted to coincide with the user's pupil, thereby ensuring the user's wearing comfort and use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 is a side view structural schematic diagram of a corrective lens assembly;

[0025] Figure 3 This is a schematic diagram of the installation structure of an embodiment of the first magnetic attraction component;

[0026] Figure 4 is a schematic diagram of the installation structure of an embodiment of the second magnetic attraction member;

[0027] Figure 5 It is a schematic diagram of the connection structure between the clamping frame and the corrective lens body;

[0028] Figure 6 It is a schematic diagram of another embodiment of the connection structure between the clamping frame and the corrective lens body;

[0029] Figure 7 The structural schematic diagram of the image source being an optical fiber scanning image source;

[0030] Figure 8 This is a structural schematic diagram of the light source of the optical fiber scanning image source being arranged in the temple. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figure 1 , Figure 2 , Figure 3 As shown, an embodiment of the utility model provides an AR glasses corrective lens pupil distance adjustment structure, including a frame, wherein the frame includes a left frame section 101 for mounting a left lens and a right frame section 102 for mounting a right lens, the left frame section 101 and the right frame section 102 are fixedly connected as a whole through a connecting beam, and at least one of the left frame section 101 and the right frame section 102 is installed with a corrective lens assembly 200,

[0033] The upper edge and the lower edge of the left frame section 101 and the right frame section 102 are both extended in the horizontal direction. The corrective lens assembly 200 comprises a clamping frame 201 and a corrective lens body 202. The corrective lens body 202 is installed in the clamping frame 201. The upper and lower parts of the clamping frame 201 are both slidably clamped to the upper and lower edges of the frame sections through clamping grooves 203. The clamping frame 201 and the corrective lens body 202 are parallel to the lenses in the frame and are located directly behind the lenses on the corresponding sides.

[0034] like Figure 3 As shown, the upper part and / or the lower part of the clamping frame 201 is provided with a first magnetic attraction member 301, such as Figure 4 As shown, the upper edge and / or lower edge of the left frame section 101 and the right frame section 102 are provided with a second magnetic member 302 that cooperates with the first magnetic member 301, and the first magnetic member 301 and the second magnetic member 302 cooperate with each other so that when the snap-on frame 201 slides to any position along the upper edge and the lower edge of the frame section, the first magnetic member 301 and the second magnetic member 302 can attract each other for positioning.

[0035] The utility model allows the corrective lens assembly 200 to slide in the horizontal direction and can be positioned to any sliding position by magnetic attraction, so that when different users wear glasses, the center position of the corrective lens can always be adjusted to coincide with the user's pupil.

[0036] For example, optionally, the upper portion of the clamping frame 201 is provided with a first magnetic member 301, and the upper edges of the left frame section 101 and the right frame section 102 are provided with a second magnetic member 302. Also optionally, the lower portion of the clamping frame 201 is provided with a first magnetic member 301, and the lower edges of the left frame section 101 and the right frame section 102 are provided with a second magnetic member 302.

[0037] In order to enable the first magnetic member 301 and the second magnetic member 302 to attract each other for positioning when the clamping frame 201 slides to any position along the upper edge and the lower edge of the frame section, at least one of the first magnetic member 301 and the second magnetic member 302 is a strip extending in the horizontal direction. For example, the first magnetic member 301 is a magnetic strip extending in the horizontal direction and is arranged on the bottom surface of the lower edge of the left frame section 101 and the right frame section 102, and the second magnetic member 302 is one or more magnetic blocks and is arranged on the bottom of the clamping frame 201, close to the bottom surface of the lower edge of the left frame section 101 or the right frame section 102. Thus, when the clamping frame 201 slides horizontally along the upper edge and the lower edge of the left frame section 101 or the right frame section 102, the magnetic blocks always contact the magnetic strips, and the magnetic blocks and the magnetic strips attract each other to form magnetic positioning. Of course, it is also optional that the first magnetic member 301 is one or more magnetic blocks, and the second magnetic member 302 is a magnetic strip extending horizontally; it is also optional that both the first magnetic member 301 and the second magnetic member 302 are magnetic strips extending horizontally.

[0038] The upper and lower parts of the clamping frame 201 are both provided with clamping grooves 203 for clamping to the upper and lower edges of the mirror frame part, and the clamping grooves 203 can be slidably clamped to the upper and lower edges of the mirror frame part.

[0039] Optional, such as Figure 5 , Figure 6 As shown, the clamping frame 201 is provided with a dovetail groove, and the corresponding position of the corrective lens body 202 is provided with a dovetail connection part that matches the dovetail groove, and the dovetail connection part of the corrective lens body 202 is installed in the dovetail groove; alternatively, the clamping frame 201 is provided with a dovetail connection part, and the corresponding position of the corrective lens body 202 is provided with a dovetail groove that matches the dovetail connection part, and the dovetail groove of the corrective lens body 202 is fitted in the dovetail connection part. The above structure enables the clamping frame to be suitable for corrective lenses of different thicknesses and degrees.

[0040] Furthermore, the snap-on frame 201 includes a bracket body for installing a corrective lens body 202, and the upper and lower parts of the bracket body are both provided with snap-on parts for snapping into corresponding frame parts, and the snap-on parts are both provided with snap-on grooves 203, and the snap-on parts are correspondingly snap-on to the upper edge and the lower edge of the frame part, and the upper edge and the lower edge of the frame part are accommodated in the snap-on grooves 203 of the corresponding snap-on parts.

[0041] During specific use, according to the user's vision, a corrective lens assembly 200 with a corrective lens body 202 of a corresponding degree can be installed on the left frame section 101, and a corrective lens assembly 200 with a corrective lens body 202 of a corresponding degree can be installed on the right frame section 102. Of course, if the user's left eye or right eye has normal vision, it is not necessary to install the corrective lens assembly 200 on the corresponding side.

[0042] Specifically, the upper part of the bracket body of the clamping frame 201 has an upper clamping part 204 and the lower part has a lower clamping part 205. The upper clamping part 204 is clamped to the upper edge of the left frame section 101 or the right frame section 102 through the clamping groove 203 provided therein, and the lower clamping part 205 is clamped to the lower edge of the left frame section 101 or the right frame section 102 through the clamping groove 203 provided therein, so that the upper edge of the left frame section 101 or the right frame section 102 is clamped in the clamping groove 203 of the upper clamping part 204, and the lower edge of the left frame section 101 or the right frame section 102 is clamped in the clamping groove 203 of the lower clamping part 205. Thus, the clamping of the clamping frame 201 and the frame is realized, and at the same time, the bracket body and the corrective lens installed in the bracket body are parallel to the lens in the frame and are located directly behind the lens on the corresponding side.

[0043] The left and right temples are respectively provided on the left and right sides of the frame, and the front part of at least one of the left and right temples is provided with an image display element, such as Figure 7 As shown, the image display element includes an image source 400 that emits image light to the lens on the corresponding side and an imaging lens group 500 arranged on the output light path of the image source. The lens that receives the image light emitted by the image display element is a waveguide lens, and the waveguide lens is used to guide the image light emitted by the image display element and the external real environment light into the human eye.

[0044] Specifically, when the front part of the left temple has an image display element, the left lens is a waveguide lens; when the front part of the right temple is provided with an image display element, the right lens is a waveguide lens. Further, the waveguide lens has a coupling unit for receiving the image light emitted by the image display element, the coupling unit is placed in front of the image display element along the output light path of the image display element, the waveguide lens is located in front of the eye of the wearer, the image display element projects the image light to the coupling unit of the waveguide lens, and the waveguide lens is used to guide the light emitted by the image display element and the external real environment light into the human eye. Further, the waveguide lens is provided with an optical module for diffracting and / or reflecting light, the optical module is used to receive the image source light introduced by the coupling unit, and guide the light to the human eye, and at the same time guide the light reflected by the external real object to the human eye, so that the human eye can see both the image of the external real object and the virtual image, so as to realize the augmented reality display. Preferably, the optical module includes a relay unit and a coupling unit.

[0045] The front part of the left temple and / or the front part of the right temple is provided with a receiving cavity for installing the image display element, the receiving cavity is a cavity with an opening on the front side, the image display element is installed in the receiving cavity, and the coupling unit of the waveguide lens matched with the image display element is located directly in front of the image display element.

[0046] Optionally, the image source 400 may be a fiber scanning image source, an LCD image source, an LED image source, an LCoS image source, a DLP image source, an OLED image source, or other image sources.

[0047] Taking into account the lightweight and small size of the near-eye display device, the requirements for the optical module are relatively high. Preferably, the image source is a fiber scanning image source, which cooperates with related optical elements to realize the display of virtual images. Of course, it should be understood that the scanning display device is not limited to the fiber scanner. In other embodiments, scanning display devices such as micro-electro-mechanical system (MEMS) scanning mirrors can also be used.

[0048] Preferably, the optical fiber scanning image source comprises a light source 401, a scanning driver 402 and an optical fiber 403. The scanning driver 402 is fixedly arranged at the front of the left temple or the right temple through a supporting member. Figure 7 As shown, the front end of the scanning driver 402 is a free end, and the free end performs a two-dimensional scanning motion relative to its fixed end under the drive of the driving signal, and the output end of the optical fiber 403 is fixedly arranged at the free end of the scanning driver 402 in a cantilever support manner, and the light input end of the optical fiber 403 is connected to the light source. Figure 8As shown, the light source 401 includes a laser group and a beam combining unit, the laser group includes a plurality of monochromatic lasers, the plurality of monochromatic lasers are connected to the input end of the optical fiber 403 through the beam combining unit, and each monochromatic laser emits a light beam of a different color. Optionally, the light source 401 is disposed in the temple, and also optionally, the light source is disposed in an independent portable component.

[0049] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The words "comprise" or "include" do not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The use of the words first, second, and third, etc. does not indicate any order, and these words may be interpreted as names.

[0050] All features disclosed in this specification, except mutually exclusive features, can be combined in any way.

[0051] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0052] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An AR glasses correction lens pupil distance adjustment structure, characterized in that: The spectacles frame comprises a left spectacles frame section for mounting a left lens and a right spectacles frame section for mounting a right lens, the left spectacles frame section and the right spectacles frame section are fixedly connected as a whole through a connecting beam, at least one of the left spectacles frame section and the right spectacles frame section is installed with a corrective lens assembly, The upper edge and the lower edge of the left frame section and the right frame section both extend in the horizontal direction. The corrective lens assembly comprises a clamping frame and a corrective lens body. The corrective lens body is installed in the clamping frame. The upper and lower parts of the clamping frame are slidably clamped to the upper and lower edges of the frame section through clamping grooves. The clamping frame and the corrective lens body are parallel to the lenses in the frame and are located directly behind the corresponding side lenses. A first magnetic component is provided on the upper and / or lower part of the clip-on frame, and a second magnetic component cooperating with the first magnetic component is provided on the upper and / or lower edges of the left frame section and the right frame section. The first magnetic component and the second magnetic component cooperate with each other so that when the clip-on frame slides to any position along the upper and lower edges of the frame section, the first magnetic component and the second magnetic component can attract each other for positioning.

2. The pupil distance adjustment structure of an AR glasses correction lens according to claim 1, characterized in that: A first magnetic attraction member is disposed on the upper portion of the clamping frame, and a second magnetic attraction member is disposed on the upper edges of the left frame section and the right frame section; And / or a first magnetic attraction component is arranged at the lower part of the clamping frame, and a second magnetic attraction component is arranged at the lower edge of the left frame section and the right frame section.

3. The pupil distance adjustment structure of an AR glasses correction lens according to claim 1 or 2, characterized in that: At least one of the first magnetic attraction component and the second magnetic attraction component is a strip-shaped component extending in the horizontal direction.

4. The pupil distance adjustment structure of an AR glasses correction lens according to claim 1, characterized in that: The upper and lower parts of the clamping frame are both provided with clamping grooves for clamping on the upper and lower edges of the mirror frame sub-parts, and the clamping grooves can be slidably clamped on the upper and lower edges of the mirror frame sub-parts.

5. The pupil distance adjustment structure of an AR glasses correction lens according to claim 4, characterized in that: The snap-on frame includes a bracket body for mounting a corrective lens body, the upper and lower parts of the bracket body are both provided with snap-on parts for snapping into corresponding frame parts, the snap-on parts are both provided with snap-on grooves, the snap-on parts are correspondingly snap-on into the upper and lower edges of the frame parts, and the upper and lower edges of the frame parts are accommodated in the snap-on grooves of the corresponding snap-on parts.

6. The pupil distance adjustment structure of an AR glasses correction lens according to claim 1, characterized in that: A left temple and a right temple are respectively arranged on the left and right sides of the frame, and an image display element is arranged on the front part of at least one of the left temple and the right temple. The image display element includes an image source that emits image light to the lens on the corresponding side and an imaging lens group arranged on the output light path of the image source. The lens that receives the image light emitted by the image display element is a waveguide lens, and the waveguide lens is used to guide the image light emitted by the image display element and the external real environment light into the human eye.

7. The pupil distance adjustment structure of an AR glasses correction lens according to claim 6, characterized in that: The front part of the left temple and / or the front part of the right temple is provided with a receiving cavity for installing the image display element, the receiving cavity is a cavity with an opening on the front side, the image display element is installed in the receiving cavity, and the coupling unit of the waveguide lens matched with the image display element is located directly in front of the image display element.

8. An AR glasses correction lens pupil distance adjustment structure as claimed in claim 6 or 7, characterized in that: The image source may be a fiber scanning image source, an LCD image source, an LED image source, an LCoS image source, a DLP image source or an OLED image source.

9. The pupil distance adjustment structure of an AR glasses correction lens as claimed in claim 6 or 7, characterized in that: The image source is an optical fiber scanning image source, which includes a light source, a scanning driver and an optical fiber. The scanning driver is fixedly arranged at the front of the left temple or the right temple through a support. The front end of the scanning driver is a free end. The free end performs a two-dimensional scanning motion relative to its fixed end under the drive of a driving signal. The output end of the optical fiber is fixedly arranged at the free end of the scanning driver in a cantilever support manner, and the light input end of the optical fiber is connected to the light source.

10. The pupil distance adjustment structure of an AR glasses correction lens according to claim 8, characterized in that: The described snap-on frame is provided with a dovetail groove, and the corresponding position of the corrective lens body is provided with a dovetail connecting portion that matches the dovetail groove, and the dovetail connecting portion of the corrective lens body is installed in the dovetail groove; or the described snap-on frame is provided with a dovetail connecting portion, and the corresponding position of the corrective lens body is provided with a dovetail groove that matches the dovetail connecting portion, and the dovetail groove of the corrective lens body is fitted in the dovetail connecting portion.

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