Insert for an augmented reality viewing device

Abstract

A visual perception device is described. The visual perception device has a corrective optic for viewing virtual and real-world content. An insert of the corrective optic is attached using a magnetic assembly, a pin, and / or a nosepiece. Interchangeable nosepieces allow for height adjustment to accommodate different users. The visual perception device has a flexible component that absorbs forces exerted on the nosepiece and a protective barrier to limit electrical shock or dust ingress.

Description

[0001] This application is a divisional application of Chinese patent application No. 201880089255.6, entitled "Installation for Augmented Reality Viewing Device" (filed on December 19, 2018).

[0002] Cross-references to related applications

[0003] This application claims priority to U.S. Provisional Patent Application No. 62 / 608,054, filed December 20, 2017, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0004] This invention relates to visual perception devices. Background Technology

[0005] Modern computing and display technologies have facilitated the development of visual perception devices, such as "virtual reality" viewing devices. Virtual reality viewing devices are wearable devices that present two images to the user, one for the left eye and one for the right. Objects in the images are differentiated from each other in a way that allows the brain to process them as three-dimensional objects. As the images change, motion in three dimensions can be simulated. Virtual reality viewing devices typically involve the presentation of digital or virtual image information that is opaque to other real-world objects.

[0006] Other visual perception devices, so-called "augmented reality" viewing devices, typically include technologies that allow digital or virtual image information to be presented as an enhancement of the visualization of the real world around the user.

[0007] Such visual sensing devices typically have a strap or other structure mounted around the user's head. These straps or structures can be frequently adjusted to fit the user. Other user-specific accommodations are usually not included in such visual sensing devices. For example, a user may need to adjust the optics to see a rendered image (in virtual reality or augmented reality viewing devices) or to see real objects in the real world around the user (in augmented reality viewing devices).

[0008] Visual sensing devices, such as augmented reality viewing devices, virtual reality viewing devices, prescription glasses, and over-the-counter glasses, typically have a nose piece. The nose piece is mounted above the user's nose and helps support the weight of the visual sensing device. The nose pieces of visual sensing devices are usually not interchangeable to fit different users. Summary of the Invention

[0009] The present invention provides a visual sensing device comprising: a viewing device frame including at least a first viewing device frame component; at least a first viewing component fixed to the viewing device frame; an insertion frame including at least a first correction component; and an attachment system including at least a first magnetic kit having a first connecting component and a second connecting component respectively fixed to the first viewing device frame component and the insertion frame, wherein the first connecting component and the second connecting component of the first magnetic kit attract each other by north-south magnetic attraction when placed close to each other, so as to fix the insertion frame to the first viewing device frame component.

[0010] The present invention also provides a method for visually perceiving light, the method comprising: placing a first connecting member and a second connecting member close to each other, the connecting members being attracted to each other by north-south magnetic attraction to fix a correction member to a frame member and assemble them into a visual perception device, and positioning the visual perception device above the eye, wherein light is emitted from a viewing member fixed to the frame member, the correction member being located in the path of the light to correct refractive errors of the eye's lens and improve the focusing of light on the retina of the eye.

[0011] The present invention also provides a visual sensing device, comprising: a viewing device frame; at least a first viewing component fixed to the viewing device frame; an insert having at least a first viewing edge; and an attachment system comprising at least a first magnetic kit, the first magnetic kit comprising a first connecting component and a second connecting component respectively fixed to the viewing device frame and the insert, the connecting components of the first kit attracting each other by north-south magnetic attraction when placed close to each other to fix the insert to the viewing device frame, the first viewing component being visible through the first viewing edge.

[0012] The present invention also provides a method for visually perceiving light, the method comprising: placing a first connecting member and a second connecting member close to each other, the connecting members being attracted to each other by north-south magnetic attraction to fix an insert to a viewing device frame to assemble a visually perceiving device, wherein a first viewing member mounted to the viewing device frame is visible through a first viewing edge of the insert; and positioning the visually perceiving device above the eye, light being emitted from the viewing member fixed to the frame member and passing through the first viewing edge and focused on the retina of the eye.

[0013] The present invention also provides a visual sensing device comprising: a first viewing component and a second viewing component; a viewing device frame including at least a viewing device frame bridge connecting the first viewing component and the second viewing component to each other; a first correction component and a second correction component; an insertion frame including at least an insertion frame bridge connecting the first correction component and the second correction component to each other to form an insert; and an attachment system including a nose component, the nose component and the viewing device frame bridge having a first interlocking locking structure and a second interlocking locking structure respectively capable of being connected to each other to mount the nose component to the viewing device frame bridge, the upper surface of the nose component contacting the insertion frame bridge to position the insertion frame bridge against the viewing device frame bridge.

[0014] The present invention also provides a method for visually perceiving light, the method comprising: detachably mounting a nose piece to a viewing device frame bridge to fix a correction component to the frame bridge and assembling a visually perceiving device; and positioning the visually perceiving device above the eye, with light emitted from the viewing piece fixed to the frame piece, and the correction component located in the path of the light to correct refractive errors of the eye's lens and improve the focusing of light on the retina of the eye.

[0015] The present invention also provides a visual sensing device comprising: a first nose piece, which may include a corresponding locking member; a corresponding nose pad having a corresponding bridge portion defining a corresponding inverted channel shape and a corresponding first nose wing and a second nose wing; a corresponding stem connecting the corresponding second locking member to the corresponding bridge portion; a corresponding first locking structure on the corresponding locking member; a first viewing member and a second viewing member; a viewing device frame, the viewing device frame including at least a viewing device frame bridge connecting the first viewing member and the second viewing member to each other, and a second locking structure located on the viewing device frame bridge, the second locking structure and the corresponding first locking structure being respectively capable of being connected to each other to detachably mount the first nose piece to the viewing device frame bridge as a first interlocking locking structure and a second interlocking locking structure.

[0016] The present invention also provides a method for visually perceiving light, the method comprising: detachably mounting a nose pad to a viewing device frame bridge and positioning the nose pad on a user's nose, the nose pad having a nasal bridge portion defining an inverted channel shape and a first nasal wing and a second nasal wing, the nasal bridge portion forming part of a viewing device frame, the viewing device frame including a viewing device frame bridge connecting a first viewing component and a second viewing component.

[0017] The present invention also provides a visual sensing device, comprising: a bionic frame; a viewing component mounted to the bionic frame; a housing; and a nose component mounted to the housing, the nose component having a first nose pad and a second nose pad and a flexible member, the housing being connected to the bionic frame via the flexible member.

[0018] The present invention also provides a visual sensing device, comprising: a bionic frame; a viewing component mounted on the bionic frame; a housing; and a nose component mounted on the housing, the nose component having a first nose pad and a second nose pad, and a blocking component located between the bionic frame and the nose component.

[0019] The present invention also provides a visual sensing device comprising: a data channel for storing data representing an image; a projector connected to the data channel for converting the data into light representing the image and emitting the light representing the image as at least a first component of light, wherein simultaneously with the first component of light, at least a second component of light is emitted from the surface of a real object; and a correction component, wherein at least one of the first and second components of light is emitted through the correction component before being refracted by the lens of the eye and then falls onto the retina of the eye, the correction component correcting the refractive error of the lens of the eye to improve the focusing of at least one component of light on the retina of the eye.

[0020] The present invention also provides a method for visually perceiving light, the method comprising: converting data representing an image into a first component of light representing the image; emitting at least the first component of light, the at least the first component of light being transmitted through the lens of the eye, wherein at least the second component of light is emitted from the surface of a real object and passes through the lens of the eye simultaneously with the first component of light; and placing a correction element in the path of light to correct refractive errors of the lens of the eye and improve the focusing of at least one of the first and second components of light on the retina of the eye.

[0021] The present invention also provides a visual sensing device comprising: a data channel for storing data representing an image; a projector connected to the data channel for converting the data into at least a first component of light representing the image and emitting at least a first component of light; and a correction component, wherein the at least first component of light is emitted through the correction component before being refracted by the lens of the eye and then falls on the retina of the eye, the correction component correcting the refractive error of the lens of the eye to improve the focusing of at least a first component of light on the retina of the eye.

[0022] The present invention also provides a method for visually perceiving light, the method comprising: converting data representing an image into at least a first component of light representing the image, transmitting the at least first component of light through the lens of the eye, and placing a correction component in the path of the at least first component of light to correct refractive errors of the lens of the eye and improve the focusing of the at least first component of light on the retina of the eye.

[0023] The present invention also provides a vision device including a lens and at least a first infrared gating filter on the lens, wherein using the first infrared gating filter allows the lens to transmit more infrared light compared to not using an infrared gating filter. Attached Figure Description

[0024] The invention is further described with reference to the accompanying drawings, in which:

[0025] Figure 1 This is a perspective view of a visual sensing device according to an embodiment of the present invention, including a viewing device, a prescription insert, and an attachment system for securing the prescription insert to the viewing device;

[0026] Figure 2 Is using Figure 1 A cross-sectional view of the viewing device showing the attachment system that places the prescription insert in the appropriate position;

[0027] Figure 3 This is a front view of the visual sensing device;

[0028] Figure 4 This is a side view showing the optical components of a visual sensing device;

[0029] Figure 5A and Figure 5B This is a side view showing the correction of myopia when viewing a real object using a lens with a surgical insert;

[0030] Figure 6A and Figure 6B This is a side view showing the myopia correction of the rendered image;

[0031] Figure 7 This is a side view and block diagram showing the image generation and eye tracking components of a visual perception device;

[0032] Figure 8 It can be used as a substitute Figure 1 Front view of prescription inserts and non-prescription inserts;

[0033] Figure 9 It is a perspective view of a visual sensing device with an attachment system, wherein the attachment system includes a nose piece for attaching an over-the-counter insert to the viewing device;

[0034] Figure 10 This is a perspective view of the nose component and the anchor component;

[0035] Figure 11 This is a rear view of the nose and anchor parts after they have been attached to each other;

[0036] Figure 12 This is a front view showing the use of the short nose piece;

[0037] Figure 13 It shows the ratio of use Figure 12 A front view of the longer nose piece;

[0038] Figure 14yes Figure 3 A perspective view of the cross-section taken from AA in the image;

[0039] Figure 15 yes Figure 3 A perspective view of a cross-section taken from BB in the image. Detailed Implementation

[0040] Figure 1 A visual sensing device 10 is shown, comprising a viewing device 12, a prescription insert 14, and an attachment system 16, wherein the attachment system 16 is used to secure the prescription insert 14 to the viewing device 12.

[0041] The viewing device 12 includes a viewing device frame 18, a first viewing component 20, and a second viewing component 22. The first viewing component 20 and the second viewing component 22 may include lenses, waveguides, and other optical components or assemblies thereof. The first viewing component 20 and the second viewing component 22 are preferably partially or completely transparent so that the user can see the scene through them.

[0042] The viewing device frame 18 includes a viewing device frame bridge 24, a first viewing device edge 26, a second viewing device edge 28, and a first temple member 30. The viewing device frame bridge 24 connects the first viewing device edge 26 and the second viewing device edge 28 to each other. Each viewing device edge 26 and each viewing device edge 28 defines a corresponding opening. A first viewing member 20 is mounted within the opening of the first viewing device edge 26. A second viewing member 22 is mounted within the opening of the second viewing device edge 28. The first temple member 30 is attached to the second viewing device edge 28 on the side of the second viewing member 22 opposite to the viewing device frame bridge 24. The first temple member 30 can extend from the viewing device frame 18 toward the user and contact at least a portion of the user's head. In a given embodiment, the first temple member 30 extends in a direction approximately perpendicular to the planes of the first and second viewing members 20 and 22; although the range of angles may also depend on the width of the user's head.

[0043] A second temple (not shown) is attached to the edge 26 of the first viewing device on the side of the first viewing member 20 opposite to the viewing device frame bridge 24. The second temple extends in a direction substantially parallel to the first temple 30.

[0044] In use, the user wears the viewing device 12 on their head. The first viewing component 20 and the second viewing component 22 are located in front of the user's right and left eyes, respectively. The temple 30 can form part of a strap or rigid or semi-rigid strip around the back of the user's head, or can be attached to such a strap or rigid or semi-rigid strip, thereby securing the viewing device frame 18 to the user's head. The user can then view the content transmitted to their eyes from the first viewing component 20 and the second viewing component 22. Because the viewing device 12 is secured to their head, the user can move their head, and the viewing device 12 moves with the head so that the first viewing component 20 and the second viewing component 22 always remain in front of their eyes.

[0045] While an embodiment in which the first temple 30 forms part of a strap or strip around the user's head has been described, alternative systems can be used to attach the viewing device to the user's head. For example, earpieces anchored to the user's ears can be provided instead of a strap or strip around the user's head. Furthermore, although the first viewing element 20 and the second viewing element 22 have been described, aspects of the invention can be applied to designs that provide only a single viewing element.

[0046] The prescription insert 14 includes an insert frame 32, a first correction component in the form of a first lens 34, and a second correction component in the form of a second lens 36.

[0047] The insertion frame 32 has an insertion frame bridge 38, a first insertion frame edge 40, and a second insertion frame edge 42. The insertion frame edges 40 and 42 are connected to each other via the insertion frame bridge 38. The insertion frame edges 40 and 42 define corresponding openings. A first lens 34 and a second lens 36 are inserted into the corresponding openings of the first insertion frame edge 40 and the second insertion frame edge 42. The first lens 34 and the second lens 36 are secured to the first insertion frame edge 40 and the second insertion frame edge 42 using conventional mechanisms such as interference fits or similar techniques.

[0048] Viewing device 12 and prescription insert 14 are separate components that can be obtained separately by the user. The first lens 34 and the second lens 36 can be prescription lenses prescribed by an optometrist and specific to a particular user. By providing the viewing device 12 and prescription insert 14 separately to the user, it is unnecessary to incorporate user-specific corrective optics into the viewing device 12. Users can replace the first lens 34 and the second lens 36 with new lenses recommended based on a new prescription as their vision changes over time. In another scenario, multiple users with different vision can share a single viewing device while having a unique prescription insert tailored to each user's specific vision. In a subsequent scenario, the prescription inserts for different users can be detachably attached to the viewing device 12 using a similar compatible attachment system as described herein.

[0049] The attachment system 16 includes a first magnetic set 50 and a second magnetic set 52. The magnetic sets 50 and 52, along with other features, are used to detachably attach the prescription insert 14 to the viewing device 12.

[0050] The first magnetic assembly 50 includes a first connector component in the form of a ferromagnetic part 54 and a second connector component in the form of a permanent magnet 56. The permanent magnet 56 is secured to the viewing device frame 18. The area where the permanent magnet 56 is secured to the viewing device frame 18 is referred to herein as the "first viewing device frame component 58". The permanent magnet 56 is inserted into an opening in the first viewing device frame component 58. The permanent magnet 56 can be secured to the first viewing device frame component 58 using an interference fit, adhesive, or the like. Alternatively, the permanent magnet can be mounted from the opposite side and secured using adhesive.

[0051] The permanent magnet 56 is located in a fixed position relative to the viewing device frame 18. The position and magnetic flux density of the permanent magnet 56 can be taken into account when calculating potential electromagnetic interference between the permanent magnet 56 and the electronics residing within the viewing device frame 18. Therefore, although the permanent magnet can be placed on the prescription insert and the ferromagnetic component on the frame, such an arrangement may require recalibration of the on-board electronics due to changes in the nearby magnetic field caused by the presence or absence of the permanent magnet on the prescription insert when it is attached and removed.

[0052] The ferromagnetic component 54 is inserted into the opening of the insertion frame bridge 38. The ferromagnetic component 54 can be fixed to the insertion frame bridge 38 using an interference fit, adhesive, or the like. The ferromagnetic component 54 is not a permanent magnet, so it is impossible for it to attract magnetic particles when separated from the viewing device 12. Therefore, users of the first lens 34 and the second lens 36 can do so without the accumulation of magnetic dust on the ferromagnetic component 54.

[0053] The second magnetic assembly 52 includes a first connector component in the form of a ferromagnetic part 60 and a second connector in the form of a permanent magnet 62. The permanent magnet 62 is fixed to a second viewing device frame component 64 that forms part of the viewing device frame 18. The ferromagnetic part 60 is fixed to an insertion frame bridge 38.

[0054] Ferromagnetic components 54 and 60 are located on opposite sides of the centerline dividing the insertion frame bridge 38 into two halves. The center points of ferromagnetic components 54 and 60 are spaced apart from each other by the same distance as the center points of permanent magnets 56 and 62. The positioning of ferromagnetic components 54 and 60 relative to the first lens 34 and the second lens 36 is the same as the positioning of permanent magnets 56 and 62 relative to the first viewing component 20 and the second viewing component 22, such that when the prescription insert is attached to the viewing device, the first viewing component 20 and the second viewing component 22 are substantially concentric with the first lens 34 and the second lens 36, and the permanent magnets 56 and 62 are substantially concentric with the ferromagnetic components 54 and 60. For example, the distance from the center point of ferromagnetic component 54 to the center point of the first lens 34 is the same as the distance from the center point of permanent magnet 56 to the center point of the first viewing component 20.

[0055] Figure 2 A first pin 78 and a first guide opening 80 are also shown. The first pin 78 is secured to and extends from the insertion frame bridge 38. The first guide opening 80 is located within the viewing device frame bridge 24. The first pin 78 has a tip 82 and a body 84. The tip 82 has a slightly smaller cross-section than the body 84.

[0056] In use, the user roughly aligns the prescription insert 14 with the viewing device 12 so that the first lens 34 is above the first viewing component 20 and the second lens 36 is above the second viewing component 22. The user then moves the prescription insert 14 closer to the viewing device 12. As the insertion frame bridge 38 approaches the viewing device frame bridge 24 and before the ferromagnetic component 54 contacts the permanent magnet 56, the first pin 78 is inserted into the first guide opening 80. The small cross-section of the tip 82 allows for a slight misalignment between the centerline of the first pin 78 and the centerline of the first guide opening 80. As the first pin 78 is further inserted into the first guide opening 80, the body 84 enters the first guide opening 80. The body 84 is only slightly smaller than the first guide opening 80, which allows the centerline of the first pin 78 to be aligned with the centerline of the first guide opening 80.

[0057] When the prescription insert 14 approaches the viewing device 12, ferromagnetic components 54 and 60 enter the magnetic fields of permanent magnets 56 and 62, respectively. The magnetic fields of permanent magnets 56 and 62 magnetize ferromagnetic components 54 and 60. Ferromagnetic components 54 and 60 are then attracted to permanent magnets 56 and 62 by north-south magnetic attraction. When the user places the prescription insert 14 on the viewing device 12, the magnetic field generated by permanent magnets 56 and ferromagnetic component 54 helps to further align ferromagnetic component 54 with permanent magnet 56. Similarly, ferromagnetic component 60 aligns with permanent magnet 62. The magnetic attraction between ferromagnetic component 54 and permanent magnet 56 allows ferromagnetic component 54 to contact permanent magnet 56, at which point the first pin 78 is fully inserted into the first guide opening 80. The user then releases the prescription insert 14. The prescription insert 14 is fixed to the viewing device 12 by permanent magnets 56 and 62, and ferromagnetic components 54 and 60. Then, the first lens 34 is aligned with the first viewing component 20, and the second lens 36 is aligned with the second viewing component 22.

[0058] The interaction between the first pin 78 and the inner surface of the first guide opening 80 prevents movement of the insertion frame bridge 38 relative to the viewing device frame bridge 24 in direction 86. The insertion frame bridge 38 is thus locked in place, preventing movement relative to the viewing device frame bridge 24 in direction 86. If the viewing device 12 is impacted or dropped, a relative force is generated between the insertion frame bridge 38 and the viewing device frame bridge 24 in a direction parallel to direction 86, and the interaction between the first pin 78 and the first guide opening 80 will prevent movement of the insertion frame bridge 38 relative to the viewing device frame bridge 24 in a direction in the same plane as direction 86. For example, the interaction between the first pin 78 and the first guide opening 80 can substantially prevent relative movement between the prescription insert and the viewing device in any direction orthogonal to the axis of the first pin 78.

[0059] If the user wishes to remove the prescription insert 14, the user holds a portion of the insert frame 32 and then removes the prescription insert 14 from the viewing device 12. Such movement causes the ferromagnetic components 54 and 60 to separate from the permanent magnets 56 and 62 until the magnetic attraction between them is broken.

[0060] The advantages of providing a permanent magnet on the viewing device 12 and a ferromagnetic component on the prescription insert 14 have been described in detail above. Aspects of the invention are not limited to this arrangement. For example, a permanent magnet may be provided on the prescription insert 14 and a ferromagnetic component on the viewing device 12. Alternatively, only a permanent magnet may be provided without a ferromagnetic component. In each case, the north-south magnetic attraction between the prescription insert 14 and the first and second connector components on the viewing device 12 secures the prescription insert 14 to the viewing device 12.

[0061] The invention has been described with reference to the examples of a first magnetic kit 50 and a second magnetic kit 52. More than one magnetic kit allows force to be distributed on the prescription insert 14 and also helps in the angular alignment of the prescription insert 14 relative to the viewing device 12. Aspects of the invention can be applied to devices having more than two magnetic kits or only a single magnetic kit. Furthermore, although a symmetrical system is shown, those skilled in the art will understand that magnetic kits 50 and 52 can be arranged in any advantageous configuration to provide sufficient attraction between the prescription insert 14 and the viewing device 12. Moreover, although magnetic kits 50 and 52 are shown located between viewing members 20 and 22 and between lenses 34 and 36, magnetic kits 50 and 52, or additional magnetic kits, can be positioned above, below, or to the side of viewing members 20 and 22 and lenses 34 and 36, wherever it is found advantageous for reducing electrical interference, a more satisfactory form factor, or other reasons.

[0062] The viewing device 12 also includes a headrest 70 fixed to the viewing device frame bridge 24. The headrest 70 rests against the forehead of the user wearing the viewing device 12. The headrest 70 provides comfort to the user due to its generally softer material than the viewing device frame 18, and also helps to insulate the user from heat generated by the electronic components on the board. The headrest 70 also helps to secure the viewing device 12 to the user's head, especially if the first temple piece 30 forms part of a strap around the user's head. The headrest 70 extends outward from the viewing device frame 18 toward the head of the user wearing the viewing device 12, which advantageously provides light blocking that would otherwise be allowed to enter from above between the viewing device frame bridge 24 and the forehead of the user wearing the viewing device 12.

[0063] The prescription insert 14 also includes a first eyecup 72 and a second eyecup 74. The first eyecup 72 is attached to the edge 40 of the first insert frame and extends from the edge 40 toward the head of the user wearing the viewing device 12. The first eyecup 72 blocks light that may enter from approximately 12 o'clock to approximately 2 o'clock between the edge 40 of the first insert frame and the head of the user wearing the viewing device 12. The shape of the first eyecup 72 matches the shape of the headrest 70 to minimize or substantially eliminate light entering from above.

[0064] The second eyecup 74 is attached to and extends from the edge 42 of the second insert frame. The second eyecup 74 blocks light entering from approximately the 10 o'clock position to approximately the 12 o'clock position between the edge 42 of the second insert frame and the head of the user wearing the viewing device 12. The second eyecup 74 cooperates with the headrest 70 to minimize or substantially eliminate light entering from above.

[0065] Figure 2 The first magnetic assembly 50 is shown after the ferromagnetic component 54 is magnetically attached to the permanent magnet 56 of the first magnetic assembly 50. The magnetic attraction between the ferromagnetic component 54 and the permanent magnet 56 resists movement of the insertion frame bridge 38 in a direction 76 away from the viewing device frame bridge 24. Figure 1 and Figure 2 The magnetic attraction between the ferromagnetic component 54 and the permanent magnet 56 of the first magnetic kit 50 shown in the figure Figure 1 The magnetic attraction between the ferromagnetic component 60 of the second magnetic kit 52 and the permanent magnet 62 is sufficient to hold the insert frame bridge 38 against the viewing device frame bridge 24, provided that the viewing device 12 is not subjected to excessive impact or dropped. The magnetic attraction is also weak enough to allow the user to remove the prescription insert 14 from the viewing device 12. The magnets are typically N52 grade magnets, each with a diameter of 4 mm and a height of 2 mm, applying a force of approximately 0.94 lbs.

[0066] The attachment system 16 thus secures the insert frame bridge 38 to the viewing device frame bridge 24 and prevents movement of the insert frame bridge 38 relative to the viewing device frame bridge 24 in directions 76 and 86. The first pin 78 and the first guide opening 80 have a centerline extending in a direction that allows the user to remove the insert frame bridge 38 from the viewing device frame bridge 24. When the user thus breaks the magnetic attraction between the ferromagnetic component 54 and the permanent magnet 56, the first pin 78 retracts from the first guide opening 80 as the insert frame bridge 38 is removed from the viewing device frame bridge 24.

[0067] like Figure 1As shown, a second guide opening 88 is disposed within the viewing device frame bridge 24. The first guide opening 80 and the second guide opening 88 are located on opposite sides of the vertical centerline of the viewing device frame bridge 24. A first pin 78 is aligned with the first guide opening 80. The prescription insert 14 also includes a second pin 90. The first pin 78 and the second pin 90 are located on opposite sides of the vertical centerline of the insertion frame bridge 38. The distance between the center points of the first guide opening 80 and the second guide opening 88 is the same as the distance between the centerlines of the first pin 78 and the second pin 90. When the prescription insert 14 moves toward the viewing device 12, the first pin 78 and the second pin 90 engage simultaneously with the first guide opening 80 and the second guide opening 88, respectively.

[0068] The inclusion of two pins 78 and 90 helps distribute force on the prescription insert 14 and prevents misalignment of the angle between the prescription insert 14 and the viewing device 12. However, it will be understood that a single pin and a single guide opening can provide an interlocking configuration, and two or more such configurations can further distribute stress on the prescription insert 14. It will also be understood that the number of pins does not need to match the number of magnetic kits. For example, there can be more or fewer pins than magnetic kits.

[0069] The viewing device 12 also includes a nose piece 92 attached to the viewing device frame bridge 24. The nose piece 92 is attached to the viewing device frame bridge 24 before or after the prescription insert 14 is attached to the viewing device 12. The lower surface of the insert frame bridge 38 is complementary in shape to the upper surface of the nose piece 92, allowing the insert frame bridge 38 to be positioned above the nose piece 92 during installation. The lower surface of the nose piece 92 is shaped to fit over the nose of the user wearing the visual sensing device 10. The material of the nose piece 92 can be selected to have a certain degree of elasticity or flexibility to accommodate various nose shapes while maintaining desired comfort. The nose piece 92 has a first tab 94 and a second tab 96 that contact opposite sides of the nose of the user wearing the visual sensing device 10.

[0070] like Figure 3 As shown, the second insertion frame edge 42 and the second lens 36 have complementary shapes, which allow the second lens 36 to face the second viewing member 22 with a first side of the second lens 36 (see...). Figure 1The second lens 36 is inserted into the second insertion frame edge 42 in a first orientation, and is not allowed to be inserted into the second insertion frame edge 42 with its first side facing away from the second viewing member 22 in a second orientation. The second lens 36 therefore cannot rotate about the vertical centerline 106 in direction 104 and still fit. Specifically, the shape of the second insertion frame edge 42 includes a first curve 100 and a second curve 102 with different radii R1 and R2, which match the corresponding radii of the second lens 36 in the first orientation, and prevent the second lens 36 from being inserted into the second insertion frame edge 42 when the second lens 36 is rotated to the second orientation in a direction about the vertical axis. The second insertion frame 42 has a flat portion 108. A line 110 extending perpendicularly from the center point of the flat portion is offset by a distance 112 from the center point 114 of the second lens 36. The positioning of the flat portion 108 relative to the center point 114 also prevents the second lens 36 from being inserted into the second insertion frame edge 42 in the second orientation. Those skilled in the art will understand that various asymmetries and / or geometries can be incorporated into the edges of the lens and insert frame to prevent incorrect lens orientation, whether upside down or switching between left and right.

[0071] By allowing the second lens 36 to be inserted into the second insertion frame edge 42 in a first orientation rather than a second orientation, proper alignment of the spherical and cylindrical correction features of the second lens 36 is ensured. The first lens 34 and the first insertion frame edge 40 have complementary shapes that allow the first lens 34 to be inserted into the insertion frame edge 40 when the first lens 34 is in the first orientation, but not when the first lens 34 is in the second orientation, where it should face the first viewing member 20 (see...). Figure 1 The surface of the first lens 34 is away from the first viewing component 20.

[0072] The complementary features of the first lens 34 and the second lens 36 relative to the first insertion frame edge 40 and the second insertion frame edge 42 thus prevent reverse insertion of the first lens 34 and the second lens 36. This feature is particularly useful because the first lens 34 and the second lens 36 are pre-manufactured to a predetermined ratio and are not easily reshaped after they have been inserted into the first insertion frame edge 40 and the second insertion frame edge 42. However, it should be understood that aspects of the invention can be applied to situations using correction components other than lenses with fixed correction dimensions. For example, aspects of the invention can be applied to situations using correction components such as adaptive lenses or correction components using liquid crystal display technology. Such correction components may or may not have the ability to adjust correction functions after installation. The complementary shapes between such correction components and the insertion frame edges in which they are mounted may or may not require complementary shapes to prevent reverse installation, depending on whether such correction components can be adjusted for spherical and cylindrical alignment of correction features.

[0073] The viewing device 12 includes multiple infrared emitters 118 and two eye-tracking cameras 120. The infrared emitters 118 are positioned to emit infrared light passing through a first lens 34 and a second lens 36. The eye-tracking cameras 120 are positioned to receive the infrared light passing through the first lens 34 and the second lens 36. Ferromagnetic components 54 and 60, along with the first pin 78 and the second pin 90, are located behind the insertion frame bridge 38. Figure 3 Not visible in the view. The insertion frame 32 is shaped to conceal the first pin 78 and the second pin 90, as well as the ferromagnetic components 54 and 60, while allowing light to be emitted from the infrared emitter 118 through the first insertion frame edge 40 and the second insertion frame edge 42, and allowing infrared light to be emitted through the first insertion frame edge 40 and the second insertion frame edge 42 to reach the eye-tracking camera 120.

[0074] Figure 4 The diagram shows the positioning of one of the infrared emitters 118, one of the eye-tracking cameras 120, a first lens 34, a first viewing component 20, and an eye 122 relative to each other. The first lens 34 has a first side 124 and a second side 126 opposite to the first side 124. The infrared emitter 118 and the eye-tracking camera 120 are located on the first side 124 of the first lens 34. The eye 122 is located on the second side 126 of the first lens 34.

[0075] The first lens 34 is made of acrylic glass, a thermosetting or thermoplastic material, or another material that reflects infrared light or most infrared light. The first infrared gating filter 128 and the second infrared gating filter 130 are made of materials that facilitate the passage of infrared light.

[0076] The first viewing member 20 has a first opposing surface 132 and a second opposing surface 134. The first opposing surface 132 and the second opposing surface 134 are flat surfaces located in parallel planes relative to each other, such that the light entering the user's eye through the viewing member 20 is almost without distortion. The first side surface 124 of the first lens 34 is a flat surface. Because the first side surface 124 of the first lens 34 is a flat surface and the second surface 134 of the first viewing member 20 is also a flat surface, the first lens 34 can be positioned as close as possible to the first viewing member 20.

[0077] The second side 126 of the first lens 34 has a concave shape that can be adjusted to accommodate various myopia correction prescriptions. The concave shape of the second side 126 allows the first lens 34 to be positioned between the eye 122 and the first viewing member 20, while still allowing sufficient space between the eye 122 and the first lens 34 without the risk that the first lens 34 may come into contact with the eye 122 or with the eyelashes during blinking.

[0078] Therefore, the combination of the flat first side 124 and the concave second side 126 of the first lens 34 allows the first lens 34 to be added between the first viewing member 20 and the eye 122. Another lens shape (e.g., the first side 124 being convex) would result in the lens shape being too close to the eye 122.

[0079] In use, the infrared emitter 118 emits electromagnetic waves in the form of infrared light 138. A first infrared gating filter 128 absorbs the infrared light 138. The infrared light 138 is emitted into the first lens 34 through the first infrared gating filter 128. Compared to when there is no first infrared gating filter 128, the first lens 34 absorbs more infrared light 138 due to the first infrared gating filter 128.

[0080] Infrared light 138 is then emitted from the first lens 34, passes through the second infrared gating filter 130, and then through the air gap between the second infrared gating filter 130 and the eye 122. The infrared light 138 is then reflected by the surface of the eye 122 as infrared light 140.

[0081] Then, infrared light 140 travels through the air gap between eye 122 and the second infrared gating filter 130. The second infrared gating filter 130 absorbs infrared light 140. Infrared light 140 travels through the second infrared gating filter 130 and enters the first lens 34. Compared to when there is no second infrared gating filter 130, the first lens 34 absorbs more infrared light 140 due to the second infrared gating filter 130.

[0082] Then, infrared light 140 travels out from the first lens 34 and passes through the first infrared gating filter 128 to reach the eye-tracking camera 120. The eye-tracking camera 120 then detects the infrared light 140. The eye-tracking camera 120 also receives infrared light, represented by infrared rays 142 and 144, from other locations on the eye 122. The infrared light received by the eye-tracking camera 120 comes from... Figure 4 The infrared emitter 118 shown is Figure 3 Other infrared emitters 118 are visible through the edge 40 of the first insertion frame. Eye movement is tracked by changes in the infrared light reflected away from the eye. An eye-tracking camera 120 captures an image of the eye 122 from the reflected infrared light. The image of the eye 122 captured by the eye-tracking camera 120 and the movement of the infrared light reflected away from the eye can change as the eye 122 moves. The changing infrared light reflection is correlated with the movement and position of the eye 122, thus allowing the eye position to be inferred from the reflection pattern captured by the eye-tracking camera 120.

[0083] Figure 5A and Figure 5B This illustrates how the first lens 34 corrects myopia when viewing a real object. Figure 5A In the image, the first lens 34 is not installed. A first component 146 of light travels from the real object (not shown) through the first viewing member 20 to the eye 122. The lens 148 of the eye 122 refracts the first component 146 of light to focus it at a focal point 150. In an eye with perfect vision, the focal point is precisely located on the retina of such an eye. In nearsighted vision, for example for eye 122, the focal point 150 is located between the retina 152 and the lens 148 of eye 122. As light moves from the focal point 150 to the retina 152, the light begins to fan out, so that when the first component 146 of light reaches the retina 152, the retina 152 detects a defocused, blurred image.

[0084] Figure 5B The correction of the first lens 34 is shown. Figure 5A The first lens 34 refracts the first component 146 of light before it reaches the lens 148 of the eye 122. As the lens 148 refracts the light, it focuses it onto the focal point 154 on the retina 152. Therefore, the first lens 34 corrects for myopia by focusing the first component 146 of light onto the viewer.

[0085] Figure 6A Additional components of the viewing device 12 are shown, including a data channel 158 and a projector 160. The projector 160 is fixed to... Figure 1 The viewing device frame 18 in the middle.

[0086] In use, data channel 158 carries data representing an image. Projector 160 is connected to data channel 158 and converts the image data into a second component 162 of light. Projector 160 is positioned to guide the second component 162 of light into first viewing member 20. The second component 162 of light enters first viewing member 20, which then acts as a waveguide through which the second component 162 of light travels, while being reflected within first viewing member 20. The second component 162 of light exits first viewing member 20 through pupil 164 toward lens 148 of eye 122. Lens 148 refracts the second component 162 of light to focus it at focal point 166. Due to the myopia of eye 122, focal point 166 is spaced apart from retina 152 and located between retina 152 and lens 148 of eye 122.

[0087] Because the forming wavefront of the image is emitted from the pupil 164 toward the eye 122, the user perceives the rendered image at a certain distance behind the first viewing component 20. The shape of the wavefront determines how far the user will perceive the virtual image. When the user focuses on the virtual image, a natural adaptation / convergence response occurs, causing the virtual image to focus on the perceived depth. However, due to the nearsightedness of the eye 122, if the distance of the virtual image is outside the range that the lens 148 of the eye 122 can correct, the user will see a defocused and blurred virtual image.

[0088] like Figure 6B As shown, before the second component 162 of light reaches the lens 148 of the eye 122, the second lens 36 refracts the second component 162 of light. When the lens 148 of the eye 122 refracts the light again, the light is focused at the focal point 166 on the retina 152.

[0089] The first component 146 and the second component 162 of the light simultaneously fall on the retina 152. As a result, the user sees both the real object and the image simultaneously. Assuming that the light originates from or appears to originate from the same depth of the eye, the first lens 34 simultaneously focuses both the real object and the image.

[0090] Figure 7 Other components of the viewing device 12 are shown, including an image generator 170, an image source 172, an eye-tracking calibration module 174, and eye-tracking calibration data 176.

[0091] Image generator 170 is connected to eye-tracking camera 120 and image source 172. The image source can be, for example, a still image, a video stream, or real-time captured image data. Image generator 170 uses the image from image source 172 and data from eye-tracking camera 120 to generate image data. Image generator 170 provides the image data to projector 160 via data channel 158.

[0092] An eye-tracking camera 120 tracks the movement of an eye 122 to determine its orientation. An image generator 170 modifies an image from an image source 172 based on data from the eye-tracking camera 120. The first viewing component 20 may, for example, have multiple pupils, and the image generator 170 may provide more light to one pupil of the first viewing component 20 than to the other pupil, depending on the orientation of the eye 122. The eye-tracking cameras 120 for both eyes 122 are able to jointly determine the orientation of the eyes 122 relative to each other. Such data can reduce adaptation and convergence mismatch by rendering images at a specific depth field.

[0093] An eye-tracking calibration module 174 generates eye-tracking calibration data 176 before the image generator 170 generates an image for the user. The eye-tracking calibration module 174 uses data from an eye-tracking camera 120 to generate the eye-tracking calibration data 176. The eye-tracking camera 120 receives image data of the eye 122 through a first lens 34. The image data received by the eye-tracking camera 120 is different when the first lens 34 is included and when it is not. The eye-tracking calibration module 174 is configured to generate eye-tracking calibration data 176 without the first lens 34 and to compensate for the inclusion of the first lens 34 when it is present. The image generator 170 uses the eye-tracking calibration data 176 to generate image data to be provided to the data channel 158. Therefore, regardless of whether eye-tracking calibration data 176 is generated when the first lens 34 is absent or included, the image generator 170 generates substantially the same image data.

[0094] The first lens 34 is a plano-concave lens. As described above, a plano-concave lens is suitable for correcting refractive errors due to myopia and can be easily fitted between the first viewing member 20 and the eye 122 without the significant risk of the first lens 34 contacting the eye 122. Aspects of the invention can be applied to situations where another lens is used, such as a biconvex, plano-convex, convex-concave, meniscus, or biconcave lens. In addition to myopia, lenses for correcting refractive errors due to astigmatism can be easily fitted between the first viewing member 20 and the eye 122. Without departing from these aspects of the invention, aspects of the invention can also be applied to correct other refractive errors, such as hyperopia or presbyopia.

[0095] Figure 8 An over-the-counter insert 180 according to another embodiment of the invention is shown. The over-the-counter insert 180 includes an insert frame 182, ferromagnetic components 188 and 190, a first pin 192 and a second pin 194, and a first eyecup 196 and a second eyecup 198. In these features, the over-the-counter insert 180 is similar to... Figure 1 Prescription insert 14.

[0096] The over-the-counter insert 180 does not have any lenses installed. Therefore, there is no risk of accidental lens reversal during installation. The insert frame 182 has a first insert frame edge 200 and a second insert frame edge 202, which do not have... Figure 1 The first insertion frame edge 40 and the second insertion frame edge 42 have features to prevent the first lens 34 and the second lens 36 from being inserted in reverse.

[0097] The prescription insert 14 and the non-prescription insert 180 are completely interchangeable. The user can remove the prescription insert 14 from the viewing device 12 by overcoming the magnetic connection force, and then install the non-prescription insert 180 in place of the prescription insert 14.

[0098] Figure 9 A visual sensing device 210 according to another embodiment of the present invention is shown, which includes Figure 1 The viewing device 12, the over-the-counter insert 214, and the nose piece 216 for securing the over-the-counter insert 214 to the viewing device 212 are described by way of example. However, it should be understood that a prescription insert may be shown instead.

[0099] The over-the-counter insert 214 includes an insert frame 218. The insert frame 218 includes an insert frame bridge 226, a first insert frame edge 228, and a second insert frame edge 230. The over-the-counter insert 214 is similar in construction and function to the insert frame 218. Figure 8 The non-prescription insert 180.

[0100] The over-the-counter insert 214 also includes a wing 232 extending from the insert frame bridge 226. The wing 232 has a curved lower surface 234. A through-hole 236 is formed through the wing 232. The through-hole 236 is formed only through a portion of the wing 232, thus keeping most of the lower surface 234 of the wing 232 in place.

[0101] The nose component 216 includes a nose pad 240 and a locking component 242.

[0102] The nasal pad 240 includes a nasal bridge 244 and a first nasal ala 246 and a second nasal ala 248. The nasal bridge 244 extends into the first nasal ala 246 and the second nasal ala 248 to define an inverted channel shape.

[0103] Locking member 242 is secured to bridge 244 and extends from upper surface 250 of bridge 244. Locking member 242 defines first locking structure 252. Nose piece 216 also has resilient pad 254 on locking member 242.

[0104] Figure 10 The nose member 216 and the anchor member 256 are shown in more detail. The anchor member 256 has a back plate 258, a second locking structure 260, and a stop 262. The second locking structure 260 and the stop 262 are integrally formed with the back plate 258. The back plate 258 also has a remaining opening 264.

[0105] exist Figure 9 In this configuration, the anchor 256 is fitted into a complementary recess in the viewing device frame bridge 24. A fastener 280 is inserted through the remaining opening 264. The fastener 280 is then screwed into the viewing device frame bridge 24, securing the anchor 256 to the viewing device frame bridge 24. Thus, the anchor 256 forms part of the viewing device 12 and is secured to the viewing device frame bridge 24 prior to the installation of the over-the-counter insert 214 and the nose piece 216 onto the viewing device 12.

[0106] The viewing device frame bridge 24 has a lower surface 288 that defines a through hole 290. The through hole 290 occupies only a portion of the solidity of the lower surface 288.

[0107] In use, the user abuts the over-the-counter insert 214 against the viewing device 12, wherein the first insert frame edge 228 and the second insert frame edge 230 are respectively positioned above the first viewing component 20 and the second viewing component 22. The upper surface of the insert frame bridge 226 and the lower surface 288 of the viewing device frame bridge 24 are positioned relative to each other. The through hole 236 in the insert frame bridge 226 is aligned with the through hole 290 in the viewing device frame bridge 24. The user then inserts the locking component 242 of the nose piece 216 through the through holes 236 and 290.

[0108] Refer again Figure 10The first locking structure 252 includes a first lever arm 294 and a second lever arm 296. Each lever arm 294 or 296 has a corresponding bevel 298 and a corresponding clamp structure 300. The bevel 298 contacts the inner surface of the second locking structure 260. Further insertion of the first lever arm 294 and the second lever arm 296 into the second locking structure 260 causes the first lever arm 294 and the second lever arm 296 to bend towards each other. As the first lever arm 294 and the second lever arm 296 are further inserted into the second locking structure 260, an elastic pad 254 contacts a stop 262. The elastic pad 254 then compresses to allow the first lever arm 294 and the second lever arm 296 to be further inserted into the second locking structure 260.

[0109] like Figure 11 As shown, when the clamp structure 300 disengages from the second locking structure 260, the first lever arm 294 and the second lever arm 296 expand outward due to their elastic properties. The clamp structure 300 then remains above the second locking structure 260. The clamp structure 300 prevents the locking member 242 from being removed from the second locking structure 260.

[0110] The elastic pad 254 generates a force F on the force transmission member 302 of the locking member 242. The force F causes the clip structure 300 to abut against the second locking structure 260 to prevent the nose piece 216 from making a noise.

[0111] Reference Figure 9 The upper surface 250 of the nose pad 240 is positioned against the lower surface 234 of the wing 232. When the nose piece 216 is securely attached to the viewing device 12, the nose pad 240 of the nose piece 216 holds the over-the-counter insert 214 in place such that the wing 232 is sandwiched between the upper surface 250 of the nose pad 240 and the lower surface 288 of the viewing device frame bridge 24. A similar arrangement can be used for prescription inserts of the type described above.

[0112] Figure 9 A permanent magnet 56 is also shown. The permanent magnet 56 forms part of a first magnetic assembly, which includes the permanent magnet 56 and a ferromagnetic component 304. Figure 9 Embodiments may include a second magnetic kit, the second magnetic kit including Figure 1 The permanent magnet 62 and the ferromagnetic component 306 are present. The over-the-counter insert may also have a first pin 308 and a second pin 310 that engage with the first guide opening 80 and the second guide opening 88. The magnetic kit, together with the first pin 308 and the second pin 310, the first guide opening 80 and the second guide opening 88, and the nose piece 216, forms an attachment system that secures the over-the-counter insert 214 to the viewing device 12.

[0113] Refer again Figure 11Each clip structure 300 has an inclined surface 316. The inclined surface 316 is sufficient to hold the clip structure 300 in position against the second locking structure 260. Slight pulling on the nose piece 216 will not cause the clip structure 300 to move. Therefore, the clip structure 300 prevents the first locking structure 252 from disengaging from the second locking structure 260.

[0114] A large force applied by the user to the nose piece 216 causes the inclined surface 316 to slide on the second locking structure 260. This sliding movement of the inclined surface presses the clamp structure 300 toward each other and bends the first lever arm 294 and the second lever arm 296. Therefore, the user is able to remove the first locking structure 252 from the second locking structure 260.

[0115] Figure 12 and Figure 13 Two nose pieces are shown, namely Figure 9 Nose pieces 216 and 320. Nose pieces 216 and 320 have similar elements, and the same reference numerals indicate the same or similar parts. Each nose piece 216 and 320 has a corresponding stem 322 for connecting the nose pad 240 to its locking member 242. The first viewing member 20 and the second viewing member 22 have calibration targets generally located at the center of the respective viewing member. When nose pieces 216 and 320 are installed, a vertical distance d is defined between the calibration point of the first viewing member 20 and the lower surface of the nose pad 240 of the respective nose piece 216 or 320. The vertical distance d when nose piece 216 is installed is less than the vertical distance when nose piece 320 is installed. The user's facial features, including their eyes 122 and nose 324, are indicated by dashed lines. Nose pieces 216 or 320 are selected such that the vertical distance d matches the vertical distance between the center point of the respective user's eye 122 and the bridge of the nose where the nose pad 240 is located.

[0116] Multiple nose pieces can be provided for the visual sensing device 10. For example, four nose pieces may each have stems of different lengths. Different nose pieces adapt to the different facial features and shapes of different users. The calibration positions on the first viewing component 20 and the second viewing component 22 are aligned with the center point of the respective user's eye 122, regardless of their facial features, resulting in more accurate calibration. The nose pieces adapt to various facial features, shapes, and sizes while maintaining optimal eyepiece positioning for each user so that the user can perceive visual content.

[0117] Figure 14 Other components of the viewing device 12 are shown, including a shell consisting of a front housing 330 and a rear housing 332, a bionic frame 334, fasteners 336, guide pins 338, and flexible members 340.

[0118] The bionic frame 334 is made of metal. A first viewing component 20 and a second viewing component 22 are fixed to the bionic frame 334. The first viewing component 20 and the second viewing component 22, together with the bionic frame 334 and other components such as electronic sensors, constitute a [structure / component / structure]. Figure 14 Other components shown are separate sub-assemblies. Components fixed to the bionic frame 334 are sensitive to sudden impact stresses that could damage them or displace them. The bionic frame 334 defines fastener openings 342 and guide pin openings 344.

[0119] Anchor 256 is directly mounted to the front housing 330. The front housing 330 has a fastener opening 346 and a guide pin opening 348.

[0120] The rear housing 332 has a threaded fastener opening 350 and a guide pin opening 352.

[0121] The flexible member 340 is an elastic member made of an elastomeric material. The flexible member 340 has a guide pin opening 352 and a fastener opening 354.

[0122] Guide pin 338 is inserted through guide pin openings 344 and 352. An interference fit is created between guide pin opening 344 and guide pin 338. Flexible member 340 is positioned adjacent to biomimetic frame 334, wherein guide pin opening 352 is aligned with guide pin opening 344, and fastener opening 354 is aligned with fastener opening 342.

[0123] The rear end of guide pin 338 is inserted into guide pin opening 352 of rear housing 332. The front end of guide pin 338 is inserted into guide pin opening 348 of front housing 330. Front housing 330 and rear housing 332 are joined together in this manner and contact each other along their circumference. Bionic frame 334 is held within the shell defined by front housing 330 and rear housing 332. Flexible member 340 is located between front housing 330 and bionic frame 334. Opposite sides of flexible member 340 contact front housing 330 and bionic frame 334.

[0124] Fastener 336 has a threaded end 356 that is inserted through fastener openings 346, 354, and 342. The threaded end 356 is then screwed into the threaded fastener opening 350. Fastener 336 has a shank 358 located within the fastener opening 342. A relatively large tolerance is provided between the fastener opening 342 and the shank 358. Fastener 336 has a head 360 larger than the fastener opening 346 for placement on the surface of the front housing 330. The threaded end 356 and the head 360 at opposite ends of fastener 336 secure fastener 336 to the front housing 330 and the rear housing 332, thereby securing the front housing 330 and the rear housing 332 to each other via a biomimetic frame 334 and a flexible member 340 between them.

[0125] As previously described, the nose piece is fixed to the anchor 256. When the user moves their head, the user transmits force from the nose through the nose piece to the anchor 256. These forces are generated due to acceleration and sudden pull. The anchor 256 transmits the force to the front housing 330. The front housing 330 transmits the force to the flexible member 340. The flexible member 340 compresses or expands, preventing force from being transmitted from the front housing 330 to the bionic frame 334, or reducing the transmitted force. Due to the relatively large tolerance between the fastener opening 342 and the fastener 336, the bionic frame 334 is allowed to move relative to the fastener 336. The bionic frame 334 is fixed to the guide pin 338 by an interference fit, which allows the guide pin 338 to move together with the bionic frame 334 relative to the front housing 330. The length of the guide pin 338 is shorter than the distance defined between the outer boundaries of the guide pin openings 348 and 352, which allows the guide pin 338 to move relative to the front housing 330 and the rear housing 332.

[0126] Figure 15 Additional components of the viewing device 12 are shown, including fastener 364, flexible member 366, and blocking member 368. Fastener 364 is used to secure anchor 256 to front housing 330.

[0127] The flexible member 366 is secured in a suitable position between the blocking member 368 and the bionic frame 334. When the nose piece 216 is installed, the rear surface of the stem 322 contacts the blocking member 368. The blocking member 368 is made of an electrically insulating material. The electrically insulating material of the blocking member 368 prevents electrical conduction between the user's nose area and the bionic frame 334, serving as a means of preventing electric shock, etc. The blocking member 368 forms a seal between the nose piece 216 and the bionic frame 334 to prevent dust from entering the area 370 between the nose piece 216 and the bionic frame 334.

[0128] When a user applies force to the nose piece 216, this force is transmitted to the flexible member 366 via the blocking member 368. The flexible member 366 is an elastic member made of an elastomeric material. The elastic properties of the flexible member 366 allow it to compress and expand to absorb force and limit the transmission of force to the biomimetic frame 334.

[0129] Although specific exemplary embodiments have been described and shown in the accompanying drawings, it should be understood that such embodiments are merely exemplary and not intended to limit the invention, and that the invention is not limited to the specific constructions and arrangements shown and described, and modifications can be made by those skilled in the art.

Claims

1. A visual perception device comprising: a first viewing component and a second viewing component; a viewing device frame including at least a viewing device frame bridge connecting the first viewing component and the second viewing component to each other; a first correction component and a second correction component; an insert frame including at least an insert frame bridge connecting the first correction component and the second correction component to each other to form an insert, and a wing extending from the insert frame bridge, the wing having a through hole; and an attachment system including a nosepiece including a nose pad having an inverted channel shape, the nose pad having a nose bridge portion, a first nose wing, and a second nose wing, and a first locking component connected to the nose bridge portion, the nosepiece and the viewing device frame bridge having first and second interengaging locking structures, respectively, that are connectable to each other to secure the nosepiece to the viewing device frame bridge, the first interengaging locking structure being formed on the locking component, the nosepiece having an upper surface that contacts the insert frame bridge to hold the insert frame bridge in place against the upper surface of the viewing device frame bridge, wherein the first interengaging locking component extends from the upper surface of the nose bridge portion, and the first interengaging locking component is insertable through the through hole.

2. The apparatus of claim 1, wherein, The first interengaging locking structure includes: a stem; first and second arm portions connected to the stem, respectively; and first and second clip structures on the first and second arm portions, respectively, wherein when the first and second clip structures are inserted into the second interengaging locking structure, the clip structures are pressed by the second interengaging locking structure to bend the first and second arm portions toward each other, and when the first and second clip structures are removed from the second interengaging locking structure, the first and second arm portions expand, wherein the first and second clip structures prevent the first interengaging locking structure from disengaging from the second interengaging locking structure.

3. The apparatus of claim 2, wherein, Each clip structure has a beveled surface that engages the second interengaging locking structure to press the first and second clip structures toward each other to allow the first interengaging locking structure to be inserted into the second interengaging locking structure.

4. The apparatus of claim 2, wherein, Each clip structure has a beveled surface that engages the second interengaging locking structure to press the first and second clip structures toward each other to allow the first interengaging locking structure to be removed from the second interengaging locking structure.

5. The apparatus of claim 2, wherein, The locking component includes: a force transfer member connected to the stem; and a resilient pad on the force transfer member that abuts against a stop portion of the viewing device and compresses when the first interengaging locking structure is inserted into the second interengaging locking structure.

6. A method of visual perception light for use in a visual perception device, wherein, The visual perception device includes: a first viewing component and a second viewing component; a viewing device frame including at least a viewing device frame bridge connecting the first viewing component and the second viewing component to each other; a first correction component and a second correction component; an insert frame comprising at least an insert frame bridge connecting the first and second corrective components to each other to form an insert, and wings extending from the insert frame bridge, the wings having through-holes; and an attachment system comprising a nosepiece comprising a nose pad having an inverted channel shape, the nose pad having a nose bridge portion, a first nose wing, and a second nose wing, and a first locking component connected to the nose bridge portion, the nosepiece and the viewing device frame bridge having first and second interengaging locking structures, respectively, the first interengaging locking structure formed on the locking component, wherein the method comprises: interconnecting the first and second interengaging locking structures to secure the nosepiece to the viewing device frame bridge, the nosepiece having an upper surface that contacts the insert frame bridge to hold the insert frame bridge in place against the upper surface of the viewing device frame bridge, wherein the first interengaging locking component extends from the upper surface of the nose bridge portion and the first interengaging locking component is insertable through the through-holes to removably mount the nosepiece to the viewing device frame bridge to secure the corrective components to the frame bridge and assemble a visual perception device; and positioning the visual perception device over an eye, light is emitted from the viewing components secured to the frame components, and the corrective components are positioned in the path of the light to correct refractive errors of the lens of the eye and improve focusing of the light on the retina of the eye.

7. The method of claim 6, wherein, the first interengaging locking structure comprises: a stem; first and second arm portions connected to the stem, respectively; and first and second clip structures on the first and second arm portions, respectively, wherein the first and second clip structures are pressed by the second interengaging locking structure to bend the first and second arm portions toward each other when the first and second clip structures are inserted into the second interengaging locking structure, and the first and second arm portions expand when the first and second clip structures are removed from the second interengaging locking structure, wherein the first and second clip structures prevent the first interengaging locking structure from disengaging from the second interengaging locking structure.

8. The method of claim 7, wherein, each clip structure has a beveled surface that engages the second interengaging locking structure to press the first and second clip structures toward each other to allow the first interengaging locking structure to be inserted into the second interengaging locking structure.

9. The method of claim 7, wherein, each clip structure has a beveled surface that engages the second interengaging locking structure to press the first and second clip structures toward each other to allow the first interengaging locking structure to be removed from the second interengaging locking structure.

10. The method of claim 7, wherein, the locking component comprises: a force transfer member connected to the stem; and a resilient pad on the force transfer member that abuts against a stop portion of the viewing device and compresses when the first interengaging locking structure is inserted into the second interengaging locking structure.

Images