Gradient focus glasses and lens structure and training paste thereof

Abstract

The invention relates to a pair of progressive-focus glasses, and a lens structure and a training paste thereof. Lenses of the progressive-focus glasses are provided with astigmatism areas; the training paste comprises a limiting area, and the limiting area is suitable for being arranged on the surface of an astigmatism area of the lens so as to mark the astigmatism area. The limiting areas can identify the astigmatism areas in the lenses of the progressive-focus glasses, and can remind a user of the range and the position of the astigmatism areas in adaptability training, so that the user can better control the sight position, the adaptability training difficulty of the progressive-focus glasses can be effectively reduced, and the progressive-focus glasses can be popularized and popularized easily.

Description

Technical Field

[0001] The invention relates to the field of eyeglasses, and in particular to progressive focus glasses and a lens structure and training stickers thereof. Background Art

[0002] The middle-aged and elderly people have presbyopia in addition to myopia and astigmatism. For different distances, the middle-aged and elderly people often need glasses with different luminances; when looking at objects at different distances, the middle-aged and elderly people have the trouble of frequently changing glasses.

[0003] In the lenses of progressive focus glasses, the distance area and the near area are connected in a step-by-step manner; the lens changes from the distance power to the near power; one lens can have different powers required for long-distance, medium-distance and near-distance vision. Therefore, progressive focus glasses can be used for long-distance, medium-distance and near-distance vision, which can well solve the trouble of the middle-aged and elderly people who need to change glasses frequently.

[0004] However, fitting progressive lenses is a systematic project. Even if vision tests, product selection, and lens correction are done correctly, users still face high difficulty in adapting. The user's mastery of the correct usage method seriously affects the user's experience. Users need to undergo adaptive training to master the correct usage method.

[0005] However, the adaptability training of progressive focus glasses is quite difficult, which seriously affects the promotion and popularization of progressive focus glasses. Summary of the invention

[0006] The problem solved by the present invention is how to reduce the difficulty of adaptability training of progressive focus glasses to promote the promotion and popularization of progressive focus glasses.

[0007] To solve the above problems, the present invention provides a training sticker for progressive focus glasses, wherein the lens of the progressive focus glasses has an astigmatism zone; the training sticker comprises: a restriction zone, wherein the restriction zone is suitable for being arranged on the surface of the astigmatism zone of the lens to mark the astigmatism zone.

[0008] Optionally, the restriction area marks the astigmatism area by reducing transmittance.

[0009] Optionally, the more severe the astigmatism of the astigmatism zone is, the lower the transmittance of the restriction zone at the corresponding position is.

[0010] Optionally, the transmittance of the inner side of the restriction zone is greater than the transmittance of the outer side of the restriction zone, wherein the inner side of the restriction zone corresponds to one side of the usage area of ​​the lens, and the outer side of the restriction zone corresponds to the edge of the lens, and the usage area is one of the near usage area and the far usage area of ​​the lens.

[0011] Optionally, the transmittance of the restriction area gradually decreases along the direction from the inside to the outside.

[0012] Optionally, the transmittance of the restricted area to light in a preset wavelength band is greater than the transmittance of light outside the preset wavelength band.

[0013] Optionally, the restriction area reflects or refracts at least part of the light.

[0014] Optionally, the confinement area scatters at least part of the light.

[0015] Optionally, the training patch has a first restriction area and a second restriction area;

[0016] The training patch further comprises: a connection area, wherein the connection area is located between the first restriction area and the second restriction area.

[0017] Optionally, the transmittance of the connecting area is higher than the transmittance of the limiting area.

[0018] Optionally, the lenses of the progressive focus glasses have a near vision zone, a far vision zone and a transition zone;

[0019] The connection zone corresponds to at least one of the near zone, the far zone and the transition zone.

[0020] Optionally, the transmittance of a portion of the connecting area corresponding to at least one of the near vision zone and the distance vision zone is higher than the transmittance of the connecting area corresponding to the transition zone.

[0021] Optionally, the shape of the training patch is the same as the shape of the lens.

[0022] Optionally, it also includes: invisible engraving points, which are suitable for cooperating with invisible engraving points of the lens for positioning.

[0023] Optionally, the training sticker has at least 2 invisible engraving points.

[0024] Correspondingly, the present invention further provides a lens structure, comprising: a progressive focus lens; a training patch, wherein the training patch is located on the surface of the progressive focus lens, and the training patch is the training patch of the present invention.

[0025] Optionally, the restricted area of ​​the training patch is consistent with the range of the astigmatism area of ​​the progressive focus lens.

[0026] Optionally, the restriction area of ​​the training patch is the same as the maximum range of the astigmatism area of ​​the progressive focus lens.

[0027] Optionally, the training sticker is located on the outer surface of the progressive focus lens.

[0028] Optionally, the training sticker is detachably attached to the surface of the progressive focus lens.

[0029] Optionally, the training sticker can be repeatedly detachably attached to the surface of the progressive focus lens.

[0030] Optionally, the training sticker and the surface of the progressive focus lens are adhered to each other through electrostatic action.

[0031] In addition, the present invention also provides a progressive focus glasses, comprising: a lens structure, wherein the lens structure is the lens structure of the present invention.

[0032] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0033] In the technical solution of the present invention, the training sticker has a restriction area arranged on the surface of the astigmatism area of ​​the lens to mark the astigmatism area. The restriction area can mark the astigmatism area in the lens of the progressive focus glasses, can remind the user of the range and position of the astigmatism area during the adaptive training, and can enable the user to better control the line of sight position, can effectively reduce the difficulty of adaptive training of progressive focus glasses, and is conducive to the promotion and popularization of progressive focus glasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The present invention is a schematic diagram of the structure of a lens of a progressive focus glasses;

[0035] Figure 2 It is a schematic diagram of the structure of some embodiments of the training stickers for progressive focus glasses of the present invention;

[0036] Figure 3 It is a schematic structural diagram of other embodiments of the training stickers for progressive focus glasses of the present invention;

[0037] Figure 4 It is a schematic structural diagram of other embodiments of the training stickers for progressive focus glasses of the present invention;

[0038] Figure 5 Schematic diagram of the structure of some embodiments of the progressive focus glasses of the present invention. DETAILED DESCRIPTION

[0039] As can be seen from the background art, the prior art progressive focus glasses have the problem of great difficulty in adaptability training.

[0040] refer to Figure 1 , showing a schematic structural diagram of a lens of a progressive focus glasses.

[0041] The lens of the progressive focus glasses has a far zone 11 and a near zone 12. The lens of the far zone 11 has a far power, which is suitable for far vision, and the lens of the near zone 12 has a near power, which is suitable for near vision. In order to achieve the respective powers of the far zone 11 and the near zone 12, the lens of the progressive focus glasses will have an astigmatism zone.

[0042] Specific as Figure 1 In the lens shown in , the distance zone 11 and the near zone 12 are respectively located in the upper and lower parts of the lens; the astigmatism zones are located on both sides of the line between the distance zone 11 and the near zone 12, namely the astigmatism zone 13a and the astigmatism zone 13b.

[0043] The distance zone 11 and the near zone 12 are the best viewing zones when the progressive focus glasses are used; when the line of sight falls on the astigmatism zone, the image is deformed, resulting in a swimming effect. Moreover, the closer to the distance zone 11 or the near zone 12, the smaller the astigmatism; the closer to the edge of the lens, the more severe the astigmatism. Therefore, when the head is turned quickly, the influence of the astigmatism zone will be more obvious.

[0044] When fitting progressive focus glasses, users need to spend a long time learning how to use them correctly: when looking far, let the sight fall on the far zone 11 at the upper part of the lens; when looking near, let the sight fall on the near zone 12 at the lower part of the lens; when looking left and right, turn the head instead of the eyeball to avoid the sight falling on the astigmatism zone. In addition, there is a transition zone 14 between the far zone 11 and the near zone 12. The transition zone 14 also has slight astigmatism. When using the transition zone 14 to look near, some users may experience visual fatigue.

[0045] When users learn to use progressive lenses, they need to learn to control the position of their sight. Therefore, the fitting process of progressive lenses requires considerable understanding, action and cooperation from the user.

[0046] However, there is no obvious difference between the different areas of the lens of progressive focus glasses, and users cannot clearly and directly distinguish the specific range and location of different areas. Especially in the early stage of using progressive focus glasses, when users have not fully mastered the use method, their vision is likely to fall into the astigmatism area, and users are likely to experience discomfort such as dizziness and nausea; the discomfort in the early stage of use will make users resist, prolong the time required for learning and adaptation, and may affect the use rate of progressive focus glasses, making them idle.

[0047] On the other hand, when teaching how to use the glasses, the fitter needs to observe whether the user's line of sight is in the correct area. Therefore, the fitting process of progressive lenses also requires high expression and guidance skills from the fitter, and the training cost of the fitter is higher and the training period is longer.

[0048] It can be seen from this that in the process of fitting progressive focus glasses, even if the vision test, product selection, glasses correction and other aspects are done correctly, the high difficulty of adaptive training seriously affects the promotion and popularization of progressive focus glasses.

[0049] In order to solve the technical problem, the present invention provides a training sticker for progressive focus glasses. The training sticker has a restriction area arranged on the surface of the astigmatism area of ​​the lens to mark the astigmatism area. The restriction area can mark the astigmatism area in the lens of the progressive focus glasses, can remind the user of the range and position of the astigmatism area during adaptive training, enable the user to better control the line of sight position, can effectively reduce the difficulty of adaptive training of progressive focus glasses, and is conducive to the promotion and popularization of progressive focus glasses.

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0051] refer to Figure 2 , showing the structural schematic diagrams of some embodiments of the training stickers for progressive focus glasses of the present invention.

[0052] The lenses of the progressive focus glasses ( Figure 2 The training sticker comprises: a restriction area, which is suitable for being arranged on the surface of the astigmatism area of ​​the lens to mark the astigmatism area.

[0053] The training sticker is suitable for being arranged on the surface of the lens of the progressive focus glasses to mark the astigmatism zone, so as to remind the user of the position and range of the astigmatism zone during the adaptive training process, assist the user in learning the sight line control method, and reduce the difficulty of the adaptive training.

[0054] In some embodiments of the present invention, the restriction area marks the astigmatism area by reducing the transmittance. When the training sticker is set on the lens, the restriction area is located on the surface of the astigmatism area, and the restriction area blocks the transmission of light to reduce the transmittance of light in the astigmatism area, thereby achieving the effect of marking the astigmatism area.

[0055] In some embodiments, the transmittance of the restricted area to light in a preset wavelength band is greater than the transmittance of light outside the preset wavelength band. Specifically, the restricted area has a higher transmittance to light in the preset wavelength band, and a lower transmittance to light outside the preset wavelength band. The preset wavelength band may be light of a certain color within the visible light wavelength range (i.e., the wavelength range is approximately in the range of 400nm to 700nm), for example, the preset wavelength band may be red light (i.e., the wavelength range is approximately in the range of 620nm to 750nm), green light (i.e., the wavelength range is approximately in the range of 500nm to 570nm), or yellow light (i.e., the wavelength range is approximately in the range of 570nm to 590nm), etc.

[0056] Specific as Figure 2 In some of the embodiments shown, the lenses of the progressive focus glasses ( Figure 2The training patch 110a (shown by dotted lines) has two astigmatism areas, the restriction area (not marked in the figure) of the training patch 110a is located in one of the astigmatism areas, and the restriction area (not marked in the figure) of the training patch 110b is located in the other astigmatism area. The restriction area of ​​the training patch 110a and the restriction area of ​​the training patch 110b both allow red light to pass through, and block light of other wavelengths other than red light from passing through, and the position and range of the astigmatism area are marked in red.

[0057] It should be noted that the preset band can be a partial band within the visible light band or the entire visible light band. In some embodiments, the preset band is the entire visible light band, that is, the transmittance of the restricted area to the light of the entire visible light band is low; therefore, the color displayed in the restricted area is black, that is, the restricted area can also be marked with astigmatism in black.

[0058] When the training patch is set on the surface of the lens, the user can intuitively understand the position and range of the astigmatism zone through the difference in transmittance, and can check whether the lens fitting is successful; after the glasses are calibrated, the fitter can intuitively observe whether the correction of the glasses is in place and whether the user wears them appropriately. The use of the training patch can effectively reduce the guidance cost of the fitter, can effectively reduce the difficulty of the user's adaptive training, and is conducive to the promotion and popularization of progressive focus glasses.

[0059] It should be noted that the method of marking the astigmatism area by making the light of different wavelengths have different transmittances (i.e., by color) is only an example. In other embodiments of the present invention, the training sticker can also reduce the transmittance by reflecting or refracting the light of the whole wavelength.

[0060] refer to Figure 3 , showing the structural schematic diagrams of other embodiments of the training stickers for progressive focus glasses of the present invention.

[0061] The difference from the above-mentioned embodiments is that, in some embodiments, the restriction area causes light of the entire wavelength band to be reflected or refracted.

[0062] In some embodiments, the restriction area reflects or refracts at least part of the light. In some exemplary embodiments, the restriction area scatters at least part of the light, thereby reducing the transmittance of the light in the restriction area; when the training sticker is set on the surface of the lens, the transmittance of the astigmatism area is different from the transmittance of other areas, thereby achieving the representation of the astigmatism area. Specifically, the restriction area can have a frosted structure to scatter at least part of the light.

[0063] In some embodiments of the present invention, the degree to which the light transmittance is reduced by the restriction zone is related to the astigmatism degree of the astigmatism zone. Specifically, the more severe the astigmatism degree of the astigmatism zone, the greater the degree to which the corresponding restriction zone reduces the transmittance. The corresponding restriction zone refers to a restriction zone used to be set on the astigmatism zone.

[0064] In some embodiments, the transmittance of the inner side of the restriction zone is greater than the transmittance of the outer side of the restriction zone, wherein the inner side of the restriction zone corresponds to one side of the usage area of ​​the lens, and the outer side of the restriction zone corresponds to the edge of the lens, and the usage area is one of the near usage area and the far usage area of ​​the lens.

[0065] In the lenses of progressive focus glasses, the closer to the near or far zone, the weaker the astigmatism, and the closer to the edge of the lens, the more severe the astigmatism; the transmittance of the restricted zone is determined based on the astigmatism of the astigmatism zone, which can not only identify the position and range of the astigmatism zone, but also effectively reflect the astigmatism degree of different positions in the astigmatism zone, which is more conducive to helping users control their vision. Specifically, Figure 3 In some of the embodiments shown, the transmittance of the restriction area gradually decreases along the direction from the inside to the outside.

[0066] It should be noted that the inner side of the restricted area corresponds to the side of the usage area of ​​the lens, which means that the inner side of the restricted area is suitable for being set on the side of the usage area of ​​the lens; the outer side of the restricted area corresponds to the edge of the lens, which means that the outer side of the restricted area is suitable for being set on the side of the edge of the lens.

[0067] Specifically, Figure 3 As shown, the inner side 212a of the restriction area 211a of the training patch and the inner side 212b of the restriction area 211b of the training patch are close to the near and far zones of the lens, the astigmatism degree of the astigmatism zones at the corresponding positions is relatively weak, and the transmittance of the inner side 212a of the restriction area 211a of the training patch and the inner side 212b of the restriction area 211b of the training patch is also relatively high; the outer side 213a of the restriction area 211a of the training patch and the outer side 213b of the restriction area 211b of the training patch are close to the edge of the lens, away from the near and far zones of the lens, the astigmatism degree of the astigmatism zones at the corresponding positions is serious, and the transmittance of the outer side 213a of the restriction area 211a of the training patch and the outer side 213b of the restriction area 211b of the training patch is also relatively low.

[0068] refer to Figure 4 , showing the structural schematic diagrams of other embodiments of the training stickers for progressive focus glasses of the present invention.

[0069] The difference from the aforementioned embodiments is that, in some embodiments, a lens of the progressive focus glasses has at least two astigmatism zones, and at least the two astigmatism zones are separated from each other; the training patch has at least two restriction zones, and the training patch also has a connection zone connecting different restriction zones.

[0070] In some embodiments of the present invention, the training patch has a first restriction area and a second restriction area; the training patch also includes a connection area, which is located between the first restriction area and the second restriction area. Different restriction areas are connected through the connection area, so that the restriction areas corresponding to the separated astigmatism areas are connected to form a piece, which can effectively reduce the difficulty of assembling the training patch and effectively improve the assembly accuracy of the training patch.

[0071] In some embodiments, the transmittance of the connecting area is higher than that of the limiting area. The transmittance of the connecting area is higher than that of the limiting area to avoid the connecting area affecting the use of areas other than the astigmatism area of ​​the lens.

[0072] In some embodiments, the lens of the progressive focus glasses has a near zone, a far zone and a transition zone; the connection zone corresponds to at least one of the near zone, the far zone and the transition zone. In some specific embodiments, the transmittance of the partial connection zone corresponding to at least one of the near zone and the far zone is higher than the transmittance of the connection zone corresponding to the transition zone. In the lens of the progressive focus glasses, the transition zone is a transition channel between the near zone and the far zone. The lens in the transition zone also has slight astigmatism. Some users are prone to visual fatigue when using the transition zone to see close. Making the transmittance of the partial connection zone corresponding to the transition zone different from the transmittance of the partial connection zone corresponding to at least one of the near zone and the far zone can enable the user to identify the position and range of the transition zone during the adaptive training process, so as to better distinguish the far zone from the near zone, and better adapt to and control the use of the transition zone.

[0073] It should be noted that the connection zone corresponds to at least one of the near zone, the far zone and the transition zone, which means that the connection zone is suitable for being arranged on the surface of at least one of the near zone, the far zone and the transition zone. For example, the connection zone corresponds to the near zone, which means that the connection zone is suitable for being arranged on the surface of the near zone; the connection zone corresponds to the transition zone, which means that the connection zone is suitable for being arranged on the surface of the transition zone.

[0074] In some embodiments, the connection zone corresponds to at least one of the near zone, the distance zone and the transition zone and further includes: the shape of the connection zone is the same as the shape of at least one of the near zone, the distance zone and the transition zone.

[0075] For example, the connection zone corresponding to the near use zone can also mean that the connection zone is suitable for being set on the surface of the near use zone, and the shape of the connection zone is the same as that of the near use zone; the connection zone corresponding to the transition zone can also mean that the connection zone is suitable for being set on the surface of the transition zone, and the shape of the connection zone is the same as that of the transition zone.

[0076] In some embodiments, the shape of the training patch is the same as the shape of the lens. Specifically, the training patch can cover the entire surface of the lens. Setting the shape of the training patch to be the same as the shape of the lens can effectively reduce the difficulty of manufacturing and assembling the training patch, can reduce the presence of the training patch as much as possible, and can effectively avoid the additional interference of the training patch on the line of sight.

[0077] Specific as Figure 4 In some embodiments shown, the training patch has a first restriction area 311a and a second restriction area 311b; the connection area is located between the first restriction area 311a and the second restriction area 311b. The connection area includes a first connection sub-area 311c, a second connection sub-area 311d and a third connection sub-area 311e, which correspond to the transition area, the distance area and the near area of ​​the lens, respectively.

[0078] Specifically, the first connecting sub-area 311c is suitable for being arranged in the transition zone of the lens, and the shape of the first connecting sub-area 311c is the same as the shape of the transition zone; the second connecting sub-area 311d is suitable for being arranged in the distance zone of the lens, and the shape of the second connecting sub-area 311d is the same as the shape of the distance zone; the third connecting sub-area 311e is suitable for being arranged in the near zone of the lens, and the shape of the third connecting sub-area 311e is the same as the shape of the near zone.

[0079] It should be noted that, in some embodiments of the present invention, the training patch further comprises: invisible engraved points, which are suitable for cooperating with the invisible engraved points of the lens for positioning. The invisible engraved patch is used to determine the position of the training patch on the lens. In some embodiments, the training patch has at least 2 invisible engraved points to ensure the positioning accuracy of the training patch on the lens. Specifically, Figure 4 As shown, the training sticker has invisible engraved points 321 and invisible engraved points 322.

[0080] Correspondingly, the present invention further provides a lens structure, which comprises: a progressive lens; and a training patch, wherein the training patch is located on the surface of the progressive lens, and the training patch is the training patch of the present invention.

[0081] The training patch is the training patch of the present invention. The specific technical scheme of the training patch can refer to the embodiment of the training patch mentioned above. The training patch can mark the astigmatism area of ​​the progressive focus lens, so as to help the user learn sight control in the adaptive training of the progressive focus lens, thereby reducing the difficulty of adaptive training of the progressive focus glasses.

[0082] In some embodiments of the present invention, the restricted area of ​​the training patch is consistent in shape with the astigmatism area of ​​the progressive focus lens. The consistency of the restricted area of ​​the training patch with the astigmatism area of ​​the progressive focus lens means that the coverage of the restricted area on the surface of the progressive focus lens is the same as the range of astigmatism exceeding a preset value on the progressive focus lens.

[0083] In some embodiments, the restriction area of ​​the training patch is the same as the maximum range of the astigmatism area of ​​the progressive focus lens. The restriction area is made the same as the maximum range of the astigmatism area to obtain a better training effect and ensure the training results of the user.

[0084] In some embodiments of the present invention, the training patch is located on the outer surface of the progressive focus lens. The progressive focus lens has an inner surface facing the eye and an outer surface facing away from the eye when in use, and the training patch is arranged on the outer surface.

[0085] In some embodiments of the present invention, the training sticker is detachably attached to the surface of the progressive lens. The training sticker is detachably attached to the surface of the progressive lens, and after the training is completed, the training sticker can be removed, and the training sticker will not affect the normal use of the progressive lens, which can minimize the impact of the training sticker on the use of the lens.

[0086] In some embodiments, the training patch can be repeatedly detachably attached to the surface of the progressive lens. When the training effect is not good, the training patch can be reattached to repeat the adaptive training.

[0087] Specifically, in some embodiments, the training patch and the surface of the progressive focus lens are adhered to each other through electrostatic action.

[0088] In addition, the present invention also provides a pair of progressive focus glasses.

[0089] The progressive focus glasses include: a lens structure, which is the lens structure of the present invention. The lens structure is the lens structure of the present invention. The specific technical solution of the lens structure can refer to the embodiment of the above-mentioned lens structure.

[0090] refer to Figure 5 , showing the structural schematic diagrams of some embodiments of the progressive focus glasses of the present invention.

[0091] The progressive focus glasses include: a frame 401 ; a lens structure 402 and a lens structure 403 , wherein the lens structure 402 and the lens structure 403 are both lens structures of the present invention, and the lens structure 402 and the lens structure 403 are fixed on the frame 401 .

[0092] The lens structure 402 and the lens structure 403 are both lens structures of the present invention, and the lens structure has a training sticker attached to the lens to mark the astigmatism area of ​​the lens. In the adaptive training of the progressive focus glasses, the training sticker can effectively assist the user in learning sight control, and the adaptive training of the progressive focus glasses is less difficult and has better scalability and popularity.

[0093] In summary, the training patch has a restriction area arranged on the surface of the astigmatism area of ​​the lens to mark the astigmatism area. The restriction area can mark the astigmatism area in the lens of the progressive focus glasses, can remind the user of the range and position of the astigmatism area during the adaptive training, and can enable the user to better control the line of sight position, can effectively reduce the difficulty of adaptive training of progressive focus glasses, and is conducive to the promotion and popularization of progressive focus glasses.

[0094] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A training sticker for progressive focus glasses, characterized in that: The lenses of the progressive focus glasses have an astigmatism zone; The training sticker comprises: a restriction area, and the restriction area is suitable for being arranged on the surface of the astigmatism area of ​​the lens to mark the astigmatism area.

2. The training patch according to claim 1, characterized in that: The restriction area marks the astigmatism area by reducing transmittance.

3. The training patch according to claim 2, characterized in that: The more serious the astigmatism of the astigmatism zone is, the lower the transmittance of the restriction zone at the corresponding position is.

4. The training patch according to claim 1 or 3, characterized in that: The transmittance of the inner side of the restriction zone is greater than the transmittance of the outer side of the restriction zone, wherein the inner side of the restriction zone corresponds to one side of the usage zone of the lens, and the outer side of the restriction zone corresponds to the edge of the lens, and the usage zone is one of the near usage zone and the far usage zone of the lens.

5. The training patch according to claim 4, characterized in that: Along the direction from the inside to the outside, the transmittance of the restriction area gradually decreases.

6. The training patch according to claim 2, characterized in that: The transmittance of the restricted area to light in a preset wavelength band is greater than the transmittance of light outside the preset wavelength band.

7. The training patch according to claim 2, characterized in that: The confinement area reflects or refracts at least a portion of the light.

8. The training patch according to claim 7, characterized in that: The confinement region scatters at least a portion of the light.

9. The training patch according to claim 1, characterized in that: The training patch has a first restriction area and a second restriction area; The training patch further comprises: a connection area, wherein the connection area is located between the first restriction area and the second restriction area.

10. The training patch according to claim 9, characterized in that: The transmittance of the connecting area is higher than the transmittance of the limiting area.

11. The training patch according to claim 9, characterized in that: The lenses of the progressive focus glasses have a near area, a far area and a transition area; The connection zone corresponds to at least one of the near zone, the far zone and the transition zone.

12. The training patch according to claim 11, characterized in that: The transmittance of a portion of the connecting area corresponding to at least one of the near zone and the distance zone is higher than the transmittance of the connecting area corresponding to the transition zone.

13. The training patch according to claim 1 or 9, characterized in that: The shape of the training patch is the same as that of the lens.

14. The training patch according to claim 1, characterized in that: Also includes: Invisible engraved points, the invisible engraved points are suitable for cooperating with the invisible engraved points of the lens for positioning.

15. The training patch according to claim 14, characterized in that: The training patch has at least 2 invisible engraved points.

16. A lens structure, characterized in that: include: Progressive lenses; A training patch, wherein the training patch is located on the surface of the progressive focus lens, and the training patch is as described in any one of claims 1 to 15.

17. The lens structure according to claim 16, characterized in that: The restricted area of ​​the training patch is consistent with the range of the astigmatism area of ​​the progressive focus lens.

18. The lens structure according to claim 17, characterized in that: The restriction area of ​​the training patch is the same as the maximum range of the astigmatism area of ​​the progressive focus lens.

19. The lens structure according to claim 16, characterized in that: The training sticker is located on the outer surface of the progressive focus lens.

20. The lens structure according to claim 16, characterized in that: The training sticker is detachably attached to the surface of the progressive focus lens.

21. The lens structure according to claim 20, characterized in that: The training sticker can be repeatedly detachably attached to the surface of the progressive focus lens.

22. The lens structure according to claim 20 or 21, characterized in that: The training patch and the surface of the progressive focus lens are adhered to each other through electrostatic action.

23. A progressive focus glasses, characterized in that: include: A lens structure, wherein the lens structure is as described in any one of claims 16 to 22.

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