Optical module and wearable device

Abstract

An embodiment of the present application provides an optical module and a wearable device; wherein, the optical module includes: a lens barrel, an imaging lens group, an eye tracking component and a myopic lens; the imaging lens group is arranged in the lens barrel; the edge of the eye tracking component includes a trimming section and a non-trimming section, the non-trimming section is in an arc shape, the eye tracking component is arranged at one end of the lens barrel, the middle part of the eye tracking component is hollowed out to form a lens assembly area, and a sinking surface is circumferentially provided on the eye tracking component, the sinking surface includes a first sinking portion and a second sinking portion, the second sinking portion has a target height H, and the height J of the eye tracking component and the target height H satisfy: J=3H; the myopic lens is arranged in the lens assembly area, the edge portion of the myopic lens overlaps the first sinking portion, the side of the myopic lens rests on the second sinking portion, and the myopic lens and the eye tracking component are magnetically connected, so that the myopic lens can be installed and switched with the optical module by magnetic attraction.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of optical imaging technology. More specifically, the embodiments of the present application relate to an optical module and a wearable device. Background Art

[0002] Virtual reality (VR) technology integrates computer, electronic information, and simulation technologies. Its fundamental implementation involves computer-simulated virtual environments, creating a sense of immersion. With the continuous advancement of social productivity and science and technology, demand for VR technology is growing rapidly across all industries. In recent years, consumer expectations for VR products and user experience have become increasingly demanding, and demand is expanding across a growing number of consumer groups. These groups include those who wear glasses for myopia and those who don't. To cater to these diverse consumer groups, VR products must cater to their specific needs.

[0003] Traditional VR products lack the ability to accommodate myopia lenses. Wearing VR products can be uncomfortable for myopic users, and there's even the possibility that the frames of their glasses will interfere with the inner frame of the VR product, preventing them from wearing the product. If myopic users don't wear glasses and instead wear VR products, the image clarity they see will decrease, preventing them from experiencing the immersive VR experience. This also results in a poor user experience and a failure to meet the needs of different consumer groups. Summary of the Invention

[0004] The purpose of this application is to provide a new technical solution for an optical module and a wearable device. The optical module is equipped with myopia lenses, and the installation and switching of the myopia lenses are convenient and quick, without the need to install other accessories, and removing the myopia lenses will not affect the appearance of the product.

[0005] In a first aspect, the present application provides an optical module. The optical module comprises:

[0006] lens barrel;

[0007] An imaging lens assembly, the imaging lens assembly being arranged in the lens barrel;

[0008] An eye tracking assembly, wherein the edge of the eye tracking assembly includes a trimming section and a non-trimming section, the non-trimming section is arc-shaped, the eye tracking assembly is disposed at one end of the lens barrel, the middle portion of the eye tracking assembly is hollowed out to form a lens mounting area, and a resting surface is circumferentially disposed on the eye tracking assembly, the resting surface including a first resting portion and a second resting portion, the second resting portion having a target height H, and the height J of the eye tracking assembly and the target height H satisfy the following relationship: J = 3H;

[0009] A myopic lens is arranged in the lens assembly area, the edge portion of the myopic lens overlaps the first resting portion, the side portion of the myopic lens rests on the second resting portion, and the myopic lens and the eye tracking component are magnetically connected, so that the myopic lens can be installed and switched with the optical module by magnetic attraction.

[0010] Optionally, a plurality of positioning posts are provided along the circumference of the non-cutting edge segment, and the plurality of positioning posts are distributed according to target angles.

[0011] Optionally, when the number of the positioning posts is set to three, the three positioning posts are distributed on the non-cutting edge segment in an arrangement of 80°, 140°, and 140°, respectively; or, the three positioning posts are evenly distributed on the non-cutting edge segment in an arrangement of 120°.

[0012] Optionally, a positioning hole is provided at one end of the lens barrel connected to the eye tracking assembly, and the positioning hole and the positioning post are arranged in a one-to-one correspondence;

[0013] When the eye tracking component is connected to the lens barrel, the positioning posts on the eye tracking component are correspondingly inserted into the positioning holes on the lens barrel.

[0014] Optionally, a positioning notch is provided on the edge of the myopia lens;

[0015] A first mounting groove is provided along the edge of the back side of the myopia lens;

[0016] A first magnetic component is fixedly disposed in the first installation groove. The first magnetic component is annular and has an opening portion that matches the positioning notch.

[0017] Optionally, the first magnetic member is fixed in the first mounting groove by a first double-sided tape, and the shape of the first double-sided tape matches the shape of the first magnetic member;

[0018] The first mounting groove has a first height K1, the first double-sided tape has a first thickness H1, the first magnetic member has a second thickness H2, and the first height K1, the first thickness H1 and the second thickness H2 satisfy: K1=6×(H1+H2).

[0019] Optionally, a second mounting groove is provided on the back of the eye tracking assembly, and the second mounting groove is located on the non-cutting edge segment and is arranged along the circumferential direction;

[0020] A second magnetic component is fixedly disposed in the second installation groove. The second magnetic component matches the shape of the first magnetic component, and the second magnetic component has opposite magnetism to the first magnetic component.

[0021] Optionally, the second magnetic member is fixed in the second mounting groove by a second double-sided tape, and the second double-sided tape is adapted to the shape of the second magnetic member;

[0022] The sum of the thickness of the second magnetic part and the thickness of the second double-sided tape is less than the height of the second mounting slot, the width of the second magnetic part and the width of the second double-sided tape are both less than the width of the second mounting slot, and the width of the second magnetic part is greater than the width of the second double-sided tape.

[0023] Optionally, the eye tracking assembly is fixed to one end of the lens barrel by bonding with a third double-sided adhesive tape, and the third double-sided adhesive tape is provided with an avoidance hole for avoiding the positioning post;

[0024] A first contact width A is defined between the non-trimmed section and the lens barrel, a second contact width D is defined between the trimmed section and the lens barrel, and the first contact width A is greater than the second contact width D.

[0025] Optionally, the imaging lens assembly includes a cemented lens assembly fixedly disposed in the lens barrel.

[0026] Optionally, the optical module further includes a screen bracket and a display screen, wherein the screen bracket is fixedly arranged at an end of the lens barrel away from the myopia lens, and the display screen is arranged in the screen bracket.

[0027] In a second aspect, the present application provides a wearable device. The wearable device includes:

[0028] a housing; and

[0029] As described in the optical module of the first aspect, the optical module is provided in the housing.

[0030] Optionally, the housing is a frame, two frames are provided on the frame, two optical modules are provided, and the two optical modules are provided in the two frames.

[0031] The beneficial effects of this application are:

[0032] An embodiment of the present application provides an optical module, in which an eye-tracking component is provided at the end of the lens barrel close to the human eye, and a myopia lens is provided on the eye-tracking component. The myopia lens and the optical module can be installed and switched in a simple and quick manner. During the switching process, only the myopia lens itself needs to be replaced, and no other accessories need to be installed. Moreover, the appearance of the optical module will not be affected at all after the myopia lens is removed. The entire optical module is applicable to a wide range of consumer groups, including those who wear myopia glasses and those who do not wear myopia glasses.

[0033] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0035] Figure 1 This is one of the structural diagrams of the optical module provided in an embodiment of the present application;

[0036] Figure 2 The second structural diagram of the optical module provided in the embodiment of the present application;

[0037] Figure 3 This is one of the structural diagrams of the eye tracking component provided in an embodiment of the present application;

[0038] Figure 4 The second structural diagram of the eye tracking component provided in an embodiment of the present application;

[0039] Figure 5 for Figure 4 An enlarged schematic diagram of the middle positioning column;

[0040] Figure 6 A schematic structural diagram of a sinking surface on an eye tracking assembly provided in an embodiment of the present application;

[0041] Figure 7 A schematic diagram of the distribution of positioning posts on an eye tracking assembly provided in an embodiment of the present application;

[0042] Figure 8 A schematic diagram of the distribution of positioning holes on the lens barrel provided in an embodiment of the present application;

[0043] Figure 9 A schematic structural diagram of a lens barrel provided in an embodiment of the present application;

[0044] Figure 10 for Figure 9 An enlarged schematic diagram of the positioning hole shown in FIG;

[0045] Figure 11 An assembly diagram of the lens barrel and eye tracking assembly provided in an embodiment of the present application;

[0046] Figure 12 for Figure 11 The enlarged schematic diagram of the M in the middle;

[0047] Figure 13 A schematic structural diagram of a third double-sided tape provided in an embodiment of the present application;

[0048] Figure 14 This is one of the structural schematic diagrams of the myopia lens provided in an embodiment of the present application;

[0049] Figure 15 This is a second structural diagram of the myopia lens provided in an embodiment of the present application;

[0050] Figure 16 A diagram illustrating the assembly structure of the myopia lens and the first magnetic component provided in an embodiment of the present application;

[0051] Figure 17 for Figure 16 Enlarged schematic diagram of position N in the middle;

[0052] Figure 18 A schematic structural diagram of the first double-sided tape provided in an embodiment of the present application;

[0053] Figure 19 A schematic structural diagram of a first magnetic member provided in an embodiment of the present application;

[0054] Figure 20 An assembly diagram of the eye tracking component and the second magnetic component provided in an embodiment of the present application;

[0055] Figure 21 A schematic diagram of the structure of the second double-sided tape provided in an embodiment of the present application;

[0056] Figure 22 A schematic structural diagram of a second magnetic member provided in an embodiment of the present application;

[0057] Figure 23 This is the third structural diagram of the optical module provided in an embodiment of the present application.

[0058] Figure 24 This is the fourth structural diagram of the optical module provided in an embodiment of the present application.

[0059] Description of reference numerals:

[0060] 1. Eye tracking assembly; 2. Myopia lens; 3. First magnetic component; 4. First double-sided tape; 5. Imaging lens assembly; 6. Lens barrel; 7. Screen bracket; 8. Display screen; 9. Second magnetic component; 10. Second double-sided tape; 11. Third double-sided tape.

[0061] 101. Positioning column; 102. Trimming section; 103. Non-trimming section; 104. Lens assembly area; 105. Resting surface; 106. Second mounting groove; 201. First mounting groove; 202. Positioning notch; 601. Positioning hole; 301. Opening; 1101. Avoidance hole. DETAILED DESCRIPTION

[0062] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application.

[0063] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0064] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0065] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0066] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0067] According to one aspect of an embodiment of the present application, an optical module is provided, which is suitable for use in a wearable device. The wearable device, for example, includes a head-mounted display (HMD). The head-mounted display device, for example, includes a VR headset. VR headsets, for example, include VR glasses or VR helmets, and are not specifically limited in the present embodiment.

[0068] The optical module provided in the embodiment of the present application is shown in FIG. Figure 1 and Figure 2The optical module includes: a lens barrel 6, an imaging lens group 5, an eye tracking component 1 and a myopia lens 2. The imaging lens group 5 is arranged in the lens barrel 6. The edge of the eye tracking component 1 includes a trimming section 102 and a non-trimming section 103, and the non-trimming section 103 is in an arc shape. The eye tracking component 1 is arranged at one end of the lens barrel 6. The middle part of the eye tracking component 1 is hollowed out to form a lens assembly area 104, and a sinking surface 105 is provided on the eye tracking component 1 along the circumference. The sinking surface 105 includes a first sinking portion and a second sinking portion; wherein the second sinking portion has a target height H, and the height J of the eye tracking component 1 and the target height H satisfy the following relationship: J=3H. The myopic lens 2 is arranged in the lens assembly area 104, the edge portion of the myopic lens 2 overlaps the first resting portion, the side portion of the myopic lens 2 rests on the second resting portion, and a magnetic connection is set between the myopic lens 2 and the eye tracking component 1, so that the myopic lens 2 can be installed and switched with the optical module by magnetic attraction.

[0069] The optical module provided in the above-described embodiment of the present application incorporates a replaceable myopia lens 2. By replacing the myopia lens 2, the user's vision can be matched to the target user's vision. The myopia lens 2 can be conveniently and quickly attached to the optical module using a magnetic attachment method. Specifically, the myopia lens 2 is detachably mounted on the eye-tracking assembly 1 disposed at one end of the lens barrel 6.

[0070] For example, if the first target user has 500-degree myopia, a 500-degree myopia lens 2 can be selected and magnetically mounted on the optical module. The first target user can wear the optical module directly without wearing his own myopia glasses.

[0071] For another example, if the second target user has a myopia degree of 700 degrees, the user can choose to remove the 500-degree myopia lens 2 from the optical module and magnetically mount the 700-degree myopia lens 2 on the optical module. In this way, the degree of the myopia lens 2 is switched, so as to match the second target user with a 700-degree requirement. On this basis, the second target user can also use the optical module directly without wearing his own myopia glasses.

[0072] The present embodiment provides an optical module with a myopia lens that can be freely switched based on the needs of the target user. Switching between lenses requires only replacing the lens itself, eliminating the need for installing other accessories. The myopia lens 2 is easy and quick to install and switch, enhancing the user experience.

[0073] According to the optical module provided in the embodiment of the present application, see Figure 1 and Figure 2 The eye tracking assembly 1 is disposed at one end of the lens barrel 6. Specifically, when the optical module is in use, the eye tracking assembly 1 should be positioned close to the user's eyes. In this embodiment, the edge of the eye tracking assembly 1 is designed to have a trimming section 102 and a non-trimming section 103. The non-trimming section 103 is curved, while the trimming section 102 is straight. The trimming section 102 is designed to avoid areas such as the bridge of the nose and brow bone. This design improves user comfort when wearing the product.

[0074] The optical module proposed in the embodiments of the present application can be applied to, for example, VR devices. Specifically, in order to achieve specific functions, VR devices may need to track the user's eyes. When performing eye tracking, an image containing the user's eyes can be captured by a camera with a large field of view to further track the target user's eyes.

[0075] It should be noted that, in the embodiment of the present application, the eye tracking component 1 and the myopic lens 2 are arranged at the end of the lens barrel 6 close to the human eye, so that the eye tracking component 1 can be as close to the target user's eyes as possible, which is conducive to improving the accuracy of eye tracking.

[0076] The eye tracking assembly 1 includes, for example, a support and an eye tracking device (such as a camera) disposed on the support. Figure 1 and Figure 3 The support member is annular and includes an arc-shaped non-cutting edge segment and a straight-edge cutting edge segment. The eye tracking device includes, for example, an infrared light source and an eye tracking camera. The eye tracking device can be disposed on the cutting edge segment.

[0077] In the embodiment of the present application, the myopia lens 2 is combined with the eye tracking assembly 1. On the one hand, both are suitable for being placed close to the human eye, and therefore are very suitable for being combined together. On the other hand, space can be formed in the eye tracking assembly 1 to install the lens, which does not increase the size of the optical module. Figure 3 The middle of the eye tracking component 1 is hollowed out to form a lens assembly area 104. The myopia lens 2 can be arranged in the lens assembly area 104.

[0078] In the examples of this application, see Figure 6 The eye tracking component 1 is provided with a circle of sinking surface 105 along the circumference, and the sinking surface 105 includes, for example, two parts, namely a first sinking part and a second sinking part. Figure 4The second resting portion is designed to have a target height H, which can accommodate / adapt to the height and thickness of the myopic lens 2. The height J of the eye tracking assembly 1 and the target height H are designed to satisfy: J = 3H. With this dimension design, the thickness of the myopic lens 2 is ensured not to be exposed above the height surface of the eye tracking assembly 1.

[0079] For example, see Figure 4 Regarding the resting surface 105, the first resting portion is designed to have a target width G, which can be used to support the edge of the myopic lens 2. The target width G is designed to be, for example, 1.5 mm. The second resting portion is designed to have a target height H, which is designed to be, for example, 1.55 mm. This size can accommodate myopic lenses 2 of various thicknesses. Within the above-mentioned size limits, the first and second resting portions can stably support myopic lenses 2 suitable for most myopic users.

[0080] Specifically, the higher the degree of myopia lenses, the thicker and heavier they are. The size of the above-mentioned sinking surface 105 is limited to support myopia lenses of 700 degrees or even higher, which can meet the usage needs of most users.

[0081] The embodiment of the present application provides an optical module, wherein an eye tracking assembly 1 is provided at the end of the lens barrel 6 close to the human eye, and the myopic lens 2 is provided on the eye tracking assembly 1. The myopic lens 2 can be installed and switched between the optical module in a simple manner. During the switching process, only the myopic lens 2 itself needs to be replaced, without the need to install other accessories. Installation and switching are convenient and quick, and removing the myopic lens 2 will not affect the appearance of the optical module at all. The entire optical module is applicable to a wide range of consumer groups, including those who wear myopic glasses and those who do not.

[0082] In some examples of this application, see Figure 7 A plurality of positioning posts 101 are circumferentially arranged on the non-cutting section 103 (ie, the arc section) of the eye tracking component 1, and the plurality of positioning posts 101 are distributed according to target angles.

[0083] The eye tracking component 1 needs to be connected to one end of the lens barrel 6 . In order to ensure smooth assembly of the eye tracking component 1 and the lens barrel 6 , a plurality of positioning posts 101 are provided on the eye tracking component 1 .

[0084] According to the above example of the present application, the positioning post 101 is located on the non-trimming section 103. This is because the camera of the eye tracking assembly 1 is located on the trimming section 102, and in order to avoid interference with the camera, the positioning post 101 is not located on the trimming section 102.

[0085] It should be noted that the shape of the positioning column 101 can be Figure 5 The inverted trapezoid (longitudinal section) shown in the figure may also be other shapes such as a triangle or a semicircle, as long as it can play a positioning role and is small in size. This is not limited in the embodiments of the present application.

[0086] Optionally, when the number of the positioning posts 101 is set to three, see Figure 7 The three positioning posts 101 are respectively distributed on the non-cutting section 103 at an angle of 80°, 140°, and 140°, or the three positioning posts 101 are evenly distributed on the non-cutting section 103 at an angle of 120°.

[0087] Providing three positioning posts 101 on the eye tracking assembly 1 does not increase the manufacturing cost or the volume of the eye tracking assembly 1 , and is convenient for positioning, thereby facilitating smooth assembly of the eye tracking assembly 1 and the lens barrel 6 .

[0088] In some examples of this application, see Figures 8 to 10 A positioning hole 601 is provided at one end of the lens barrel 6 to which the eye tracking component 1 is connected, and the positioning hole 601 and the positioning column 101 are arranged in a one-to-one correspondence; when the eye tracking component 1 is connected to the lens barrel 6, the positioning column 101 on the eye tracking component 1 is correspondingly inserted into the positioning hole 601 on the lens barrel 6.

[0089] A positioning post 101 is provided on the eye tracking assembly 1. In order to ensure smooth assembly of the eye tracking assembly 1 and the lens barrel 6, a positioning hole 601 is designed at a corresponding position on one end surface of the lens barrel 6. Figure 8 It should be noted that the number of the positioning holes 601 is the same as the number of the positioning posts 101 , and the distribution angles are also the same.

[0090] For example, a plurality of positioning posts 101 are provided on the eye tracking assembly 1, see Figure 4 , considering the lightweight of the entire optical module, the volume of the module is minimized as much as possible. In the embodiment of this application, see Figure 5 The diameter B of the positioning post 101 is designed to be 0.8 mm, and the height C of the positioning post 101 is designed to be 0.6 mm.

[0091] In addition, considering the assembly accuracy and processing error, the size of the aperture E of the positioning hole 601 on the lens barrel 6 is designed to be 0.9 mm, and the size of the depth F of the positioning hole 601 is designed to be 0.65 mm, for example. Figure 10 As shown, to ensure that the positioning post 101 on the eye tracking assembly 1 can be smoothly installed into the positioning hole 601, the diameter of the positioning hole 601 is generally set to be 0.05mm-0.01mm larger than the diameter of the positioning post 101 during design. In some embodiments of the present application, the diameter of the positioning hole 601 is designed to be 0.1mm larger than the diameter of the positioning post 101, for example.

[0092] In some examples of this application, see Figures 11 to 13 The eye tracking assembly 1 is fixed to one end of the lens barrel 6 by a third double-sided adhesive tape 11. The third double-sided adhesive tape 11 is provided with an escape hole 1101 for circumventing the positioning column 101. Figure 4 There is a first contact width A between the non-trimming section 103 and the lens barrel 6, and there is a second contact width D between the trimming section 102 and the lens barrel 6, and the first contact width A is greater than the second contact width D.

[0093] By controlling the alignment of the positioning posts 101 on the eye-tracking assembly 1 and the positioning holes 601 on the lens barrel 6, precise positioning and a basic connection between the eye-tracking assembly 1 and the lens barrel 6 are achieved. Furthermore, the eye-tracking assembly 1 and the lens barrel 6 can be sealed and fixed together, for example, by gluing.

[0094] In the above example of the present application, the eye tracking component 1 and the lens barrel 6 can be fixed by double-sided tape. Specifically, the third double-sided tape 11 is introduced and pasted between the eye tracking component 1 and the lens barrel 6, see Figure 12 In addition, a hole 1101 is provided on the third double-sided adhesive tape 11 to avoid the positioning column 101, see Figure 13 , thus not affecting the positioning and assembly function between the positioning column 101 and the corresponding positioning hole 601.

[0095] In order to ensure that the eye tracking component 1 and the lens barrel 6 are firmly bonded and reliably stable, the contact area between the third double-sided tape 11 and the bonding surface of the eye tracking component 1 is as large as possible.

[0096] For example, in consideration of ensuring effective adhesion as much as possible and considering the lightweight of the module, the effective contact surface width left in the non-cut edge section 103 of the eye tracking component 1, that is, the first contact width A mentioned above, can be designed to be 1.7 mm. Figure 4The second contact width D on the trimming section 102 can be designed to be 0.95 mm, see Figure 7 .

[0097] In some examples of this application, see Figure 15 The edge of the myopic lens 2 is provided with a positioning notch 202; see Figure 14 The back side of the myopia lens 2 is provided with a first mounting groove 201 along the edge; Figure 16 and Figure 17 A first magnetic component 3 is fixedly installed in the first installation groove 201 . The first magnetic component 3 is annular and has an opening portion 301 that matches the positioning notch 202 .

[0098] In the solution provided in the embodiment of this application, see Figure 14 A circular groove, namely the aforementioned first mounting groove 201, is machined on the back of the myopic lens 2, and a first magnetic member 3 is fixedly installed in the first mounting groove 201. In other words, the design of embedding the first magnetic member 3 on the back of the myopic lens 2 does not increase the thickness of the myopic lens 2. Moreover, since the first magnetic member 3 is installed on the edge of the myopic lens 2, it does not affect the optical performance of the myopic lens 2 at all.

[0099] The first magnetic component 3 is, for example, an iron ring.

[0100] Alternatively, see Figure 16 and Figure 17 The first magnetic member 3 is fixed in the first mounting groove 201 by means of the first double-sided adhesive tape 4; Figure 18 The shape of the first double-sided tape 4 matches the shape of the first magnetic member 3. Figure 14 , the first mounting groove 201 has a first height K1, see Figure 18 and Figure 19 The first double-sided tape has a first thickness H1, the first magnetic member 3 has a second thickness H2, and the first height K1, the first thickness H1 and the second thickness H2 satisfy: K1 = 6×(H1+H2).

[0101] The back of the myopic lens 2 can be fixed to the first magnetic member 3 (such as an iron ring) by, for example, using double-sided tape (that is, the first double-sided tape 4 mentioned above). This fixing connection method is simple, low-cost and has good connection strength.

[0102] See also Figure 15The myopic lens 2 is designed with a positioning notch 202, which can be used for the installation and positioning of the first double-sided tape 4 and the first magnetic member 3. At the same time, it can also avoid the camera in the eye tracking component 1 to avoid interference.

[0103] In the embodiment of the present application, the depth of the first mounting slot 201, i.e., height K1, is designed. Within the aforementioned dimensional limits, this ensures that the first magnetic member 3 does not protrude from the first mounting slot 201, ensuring good magnetic attraction between the first magnetic member 3 and the eye tracking assembly 1. Furthermore, the thickness of the first magnetic member 3 and the first double-sided tape 4 can be adjusted appropriately to avoid increasing the weight and size of the entire module.

[0104] For example, a first mounting groove 201 is processed on the back of the myopia lens 2, see Figure 14 The width I of the first installation groove 201 is 1.5 mm, and the height K of the first installation groove 201 is 2.1 mm. The first installation groove 201 is used to install the first double-sided tape 4 and the first magnetic member 3. Figure 18 The thickness H1 of the first double-sided tape 4 is, for example, 0.1 mm, the thickness H2 of the first magnetic member 3 is, for example, designed to be 0.3 mm, and the width P1 is, for example, designed to be 1.5 mm, to ensure light weight and easy processing.

[0105] In some examples of this application, see Figure 20 The back of the eye tracking assembly 1 is provided with a second mounting groove 106, which is located on the non-cutting section 103 and arranged along the circumference. A second magnetic member 9 is fixedly provided in the second mounting groove 106, see Figure 22 The second magnetic member 9 is adapted to the shape of the first magnetic member 3 , and the magnetism of the second magnetic member 9 is opposite to that of the first magnetic member 3 .

[0106] The second mounting groove 106 can be used to mount the second magnetic member 9. The second magnetic member 9 and the first magnetic member 3 on the myopia lens 2 can form a magnetic attraction, thereby enabling the myopia lens 2 to be installed and switched by magnetic attraction.

[0107] Optionally, see Figures 20 to 22The second magnetic part 9 is fixed in the second mounting groove 106 by means of a second double-sided tape 10, and the second double-sided tape 10 is adapted to the shape of the second magnetic part 9; wherein the sum of the thickness of the second magnetic part 9 and the thickness of the second double-sided tape 10 is less than the height of the second mounting groove 106, the width of the second magnetic part 9 and the width of the second double-sided tape 10 are both less than the width of the second mounting groove 106, and the width of the second magnetic part 9 is greater than the width of the second double-sided tape 10.

[0108] In order to ensure that the myopic lens 2 with the first magnetic member 3 can be magnetically attracted to the eye tracking assembly 1, a second magnetic member 9 is also designed on the eye tracking assembly 1. Specifically, when the first magnetic member 3 is an iron ring, the second magnetic member 9 is, for example, a ring magnet.

[0109] In the embodiment of the present application, a second mounting groove 106 is processed on the back of the eye tracking component 1, and the second magnetic member 9 is installed in the second mounting groove 106. In addition, the second magnetic member 9 adopts double-sided tape (i.e. Figure 21 The second double-sided tape 10) shown in FIG is fixed.

[0110] For example, see Figure 20 The groove width I1 of the second mounting groove 106 is designed to be 1.28 mm, and the groove height K1 is designed to be 1 mm.

[0111] For example, see Figure 21 The second double-sided tape 10 has a thickness of 0.1 mm and a width of 0.7 mm.

[0112] For example, see Figure 22 The thickness H3 of the second magnetic member 9 is designed to be 0.8 mm, and the width P2 is designed to be 1.08 mm.

[0113] See also Figure 23 When combining the lens barrel 6 with the eye tracking component 1, the edge of the eye tracking component 1 and the lens barrel 6 can be fixed by, for example, double-sided tape, and a certain bonding width is required between the two, such as Figure 23 When the myopia lens 2 is mounted on the eye tracking assembly 1, see Figure 23 Q in the Figure 24 The myopic lens 2 can form a magnetic attraction with the second magnetic member 9 on the eye tracking component 1 through the first magnetic member 3 provided by the myopic lens 2, which facilitates the installation and switching of the myopic lens 2.

[0114] In some examples of this application, see Figure 2The imaging lens assembly 5 includes a cemented lens assembly fixedly disposed in the lens barrel 6 .

[0115] The lens barrel 6 is provided with a cavity which can accommodate a plurality of lenses for imaging.

[0116] It should be noted that the number of imaging lenses in the lens barrel 6 can be flexibly set as needed.

[0117] In the embodiment of the present application, the imaging lens assembly 5 uses a cemented lens, which can simplify the assembly of the imaging lens and improve the imaging quality. When the target user is not myopic, the myopia lens 2 can be omitted from the optical module.

[0118] It should be noted that the myopia lens 2 can be used to adjust the diopter of the optical module, and the imaging lens group 5 is used to achieve imaging, and the two have different functions.

[0119] In some examples of this application, see Figure 2 The optical module also includes a screen bracket 7 and a display screen 8. The screen bracket 7 is fixedly arranged at one end of the lens barrel 6 away from the myopic lens 2, and the display screen 8 is arranged in the screen bracket 7.

[0120] The display screen 8 is used to emit imaging light. The screen bracket 7 is used to support the display screen 8.

[0121] When the optical module is in use, the display screen 8 is located on a side away from human eyes.

[0122] According to another aspect of an embodiment of the present application, a wearable device is further provided, comprising a housing and the optical module as described above, wherein the optical module is disposed in the housing.

[0123] The wearable device is, for example, a VR head-mounted device, including VR glasses or a VR helmet, etc., and the embodiments of the present application do not impose specific restrictions on this.

[0124] In one example, the housing is a frame, and two frames are provided on the frame; the optical modules are provided in two, and the two optical modules are provided in the two frames.

[0125] The specific implementation of the wearable device of the embodiment of the present application can refer to the above-mentioned embodiments of the optical module, and therefore at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0126] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0127] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above examples may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. An optical module, characterized in that: include: Lens barrel (6); An imaging lens assembly (5), wherein the imaging lens assembly (5) is arranged in the lens barrel (6); An eye tracking component (1) is provided, wherein the edge of the eye tracking component (1) includes a trimming section (102) and a non-trimming section (103), wherein the non-trimming section (103) is in an arc shape, wherein the eye tracking component (1) is arranged at one end of the lens barrel (6), wherein the middle portion of the eye tracking component (1) is hollowed out to form a lens assembly area (104), and wherein a sinking surface (105) is provided on the eye tracking component (1) along a circumferential direction, wherein the sinking surface (105) includes a first sinking portion and a second sinking portion, wherein the second sinking portion has a target height H, and wherein a height J of the eye tracking component (1) and the target height H satisfy: J=3H; A myopia lens (2), wherein the myopia lens (2) is arranged in the lens assembly area (104), an edge portion of the myopia lens (2) overlaps the first sinking portion, a side portion of the myopia lens (2) abuts against the second sinking portion, and the myopia lens (2) and the eye tracking component (1) are connected in a magnetic manner, so that the myopia lens (2) can be installed and switched with the optical module by magnetic attraction; The edge of the myopia lens (2) is provided with a positioning notch (202); A first mounting groove (201) is provided along the edge of the back side of the myopia lens (2); A first magnetic member (3) is fixedly disposed in the first installation groove (201), and the first magnetic member (3) is annular and has an opening (301) that matches the positioning notch (202); The first magnetic member (3) is fixed in the first mounting groove (201) by means of a first double-sided adhesive tape (4), and the shape of the first double-sided adhesive tape (4) is adapted to the shape of the first magnetic member (3); The first mounting groove (201) has a first height K1, the first double-sided tape (4) has a first thickness H1, the first magnetic member (3) has a second thickness H2, and the first height K1, the first thickness H1, and the second thickness H2 satisfy: K1=6×(H1+H2).

2. The optical module according to claim 1, wherein: A plurality of positioning posts (101) are arranged along the circumference of the non-cutting edge section (103), and the plurality of positioning posts (101) are distributed according to target angles.

3. The optical module according to claim 2, wherein: When the number of the positioning posts (101) is set to three, the three positioning posts (101) are respectively distributed on the non-cutting edge section (103) in an arrangement manner of 80°, 140°, and 140°, or the three positioning posts (101) are evenly distributed on the non-cutting edge section (103) in an arrangement manner of 120°.

4. The optical module according to claim 2, wherein: One end of the lens barrel (6) connected to the eye tracking assembly (1) is provided with a positioning hole (601), and the positioning hole (601) and the positioning column (101) are arranged in a one-to-one correspondence; When the eye tracking component (1) is connected to the lens barrel (6), the positioning column (101) on the eye tracking component (1) is correspondingly inserted into the positioning hole (601) on the lens barrel (6).

5. The optical module according to claim 1, wherein: A second mounting groove (106) is provided on the back of the eye tracking component (1), and the second mounting groove (106) is located on the non-cutting edge section (103) and is arranged along the circumferential direction; A second magnetic member (9) is fixedly arranged in the second mounting groove (106), the second magnetic member (9) is adapted to the shape of the first magnetic member (3), and the second magnetic member (9) has opposite magnetism to the first magnetic member (3).

6. The optical module according to claim 5, wherein: The second magnetic member (9) is fixed in the second mounting groove (106) by means of a second double-sided adhesive tape (10), wherein the second double-sided adhesive tape (10) is adapted to the shape of the second magnetic member (9); The sum of the thickness of the second magnetic part (9) and the thickness of the second double-sided tape (10) is less than the height of the second mounting groove (106), the width of the second magnetic part (9) and the width of the second double-sided tape (10) are both less than the width of the second mounting groove (106), and the width of the second magnetic part (9) is greater than the width of the second double-sided tape (10).

7. The optical module according to claim 2, wherein: The eye tracking component (1) is bonded and fixed to one end of the lens barrel (6) by a third double-sided adhesive tape (11), and the third double-sided adhesive tape (11) is provided with an avoidance hole (1101) for avoiding the positioning column (101); There is a first contact width A between the non-trimmed section (103) and the lens barrel (6), and there is a second contact width D between the trimmed section (102) and the lens barrel (6), and the first contact width A is greater than the second contact width D.

8. The optical module according to claim 1, wherein: The imaging lens group (5) comprises a cemented lens group fixedly arranged in the lens barrel (6).

9. The optical module according to claim 1, wherein: The optical module further comprises a screen bracket (7) and a display screen (8); the screen bracket (7) is fixedly arranged at one end of the lens barrel (6) away from the myopia lens (2); and the display screen (8) is arranged inside the screen bracket (7).

10. A wearable device, characterized in that: include: case; as well as The optical module according to any one of claims 1 to 9, wherein the optical module is disposed in the housing.

11. The wearable device according to claim 10, wherein: The housing is a mirror frame, two mirror frames are provided on the mirror frame, two optical modules are provided, and the two optical modules are provided in the two mirror frames.

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