Progressive lens and glasses

Abstract

The utility model belongs to the field of multi-area progressive optical lenses, and particularly relates to a progressive lens and glasses. Comprising a group of single lens bodies, and each lens body is divided into a far vision area and a near vision area at the upper part by taking a first division line horizontally passing through an optical center as a boundary line; the far vision area comprises a far vision area adopting an optical single-light sheet and far blind areas arranged on the two sides of the far vision area, and the far vision area is similar to an ellipse; the edges of the two sides of the distant vision area are a first distant blind area high point and a second distant blind area low point respectively, and the first distant blind area low point and the second distant blind area low point are located on the first parting line and arranged on the left side and the right side of the optical center respectively. The vertical distance between the high point of the first remote blind area and the optical center is l 1, and the vertical distance between the high point of the first remote blind area and the optical center is l 2; l < 1 > is 1 / 3L to 2 / 5L, l < 2 > is 1 / 3L to 2 / 5L, and L is the vertical height of the far-sighted area.

Description

Technical Field

[0001] The utility model belongs to the field of multi - zone progressive optical lenses, and in particular relates to a progressive lens and glasses. Background Art

[0002] As an innovative eyewear product that integrates far, medium, and near vision correction, progressive lenses are highly favored because they can improve the visual comfort of wearers. However, in scenarios such as driving where a high - level of vision is required, the disadvantages of the far - vision area of progressive lenses are particularly prominent, mainly manifested as the existence of blind spots, which significantly limits the vision of wearers.

[0003] The far - vision area of progressive lenses is usually located in the upper half of the lens to meet the need for seeing objects at a distance. However, due to the optical design characteristics of the lens, there are obvious boundaries between the far - vision area for achieving transitions and other areas of the lens (such as the myopia area, middle - vision area, and transition area). Thus, a so - called "blind spot" is formed in the far - vision area. That is, when driving, when the wearer's line of sight switches to the blind spots on both sides, there may be a brief visual blur or information loss. That is, the blind spots in the far - vision area of traditional progressive lenses may cause the wearer's field of vision to be incomplete when observing distant scenery. And it may also have a negative impact on the driving comfort of the wearer.

[0004] How to provide a progressive lens that can balance comfort in various eye - use scenarios, such as driving scenarios and near - use scenarios, is a technical problem that urgently needs to be solved at present. Summary of the Utility Model

[0005] To solve the technical problems existing in the lenses of the prior art, the present application provides a progressive lens and glasses.

[0006] The embodiment of the utility model first provides a progressive lens. The progressive lens includes a set of single - lens bodies. Each lens body is divided into an upper far - vision area and a near - vision area with the first dividing line X passing horizontally through the optical center O as the boundary; the far - vision area includes a far - vision visual area using an optical single - vision lens and far - vision blind spots arranged on both sides of the far - vision visual area. The far - vision visual area presents a quasi - elliptical shape; among them, at the two side edges of the far - vision area are the first far - vision blind - spot high points M and the second far - vision blind - spot high points N, and the first far - vision blind - spot low points E and the second far - vision blind - spot low points F located on the first dividing line X and respectively arranged on the left and right sides of the optical center O; the vertical distance between the first far - vision blind - spot high point M and the optical center O is l1, and the vertical distance between the second far - vision blind - spot high point N and the optical center O is l2; l1 is from 1 / 3L to 2 / 5L, l2 is from 1 / 3L to 2 / 5L, and L is the vertical height of the far - vision area.

[0007] In a further embodiment of the present application, the intersection points of the first dividing line X with the two sides of the lens body are the first horizontal intersection point C and the second horizontal intersection point D respectively; the connection line of the first horizontal intersection point C, the first far vision blind area low point E, and the first far vision blind area high point M encloses the far vision blind area on one side; the connection line of the second horizontal intersection point D, the second far vision blind area low point F, and the second far vision blind area high point N encloses the far vision blind area on the other side.

[0008] In a further embodiment of the present application, the near vision area includes a near vision visual area and near vision blind areas provided on both sides of the near vision visual area; at the two side edges of the near vision area are the first near vision blind area low point J and the second near vision blind area low point K respectively; the connection line of the first horizontal intersection point C, the first far vision blind area low point E, and the first near vision blind area low point J encloses the near vision blind area on one side; the connection line of the second horizontal intersection point D, the second far vision blind area low point F, and the second near vision blind area low point K encloses the near vision blind area on the other side.

[0009] In a further embodiment of the present application, the near vision visual area starts to extend downward from the connection line of the first far vision blind area low point E and the second far vision blind area low point F to the bottom edge of the lens body, and the diopter of the near vision visual area changes gradually.

[0010] In a further embodiment of the present application, for the initial channel formed by the connection line of the first far vision blind area low point E and the second far vision blind area low point F, the initial channel width of the initial channel is set to 10 to 15 mm.

[0011] In a further embodiment of the present application, for the second dividing line Y passing vertically through the optical center O, the intersection points with the upper and lower edges of the lens body are the first intersection point Q and the second intersection point G respectively. The vertical distance from the optical center O to the second intersection point G is the channel length of the near vision visual area, and the channel length is set to 8 to 12 mm.

[0012] In a further embodiment of the present application, the horizontal width between the first near vision blind area low point J and the second near vision blind area low point K is greater than the initial channel width, along the direction of the connection line from the optical center O to the second intersection point G, so that the channel width of the near vision visual area decreases and then gradually increases.

[0013] In a further embodiment of the present application, along the direction of the connection line from the optical center O to the second intersection point G, the addition power ADD value of the near vision visual area increases by +0.05 D, and the addition power ADD value ranges from +1.00 D to +3.00 D.

[0014] In a further aspect of the present application, the curvature center of the line connecting the first upper far vision blind spot point M and the first lower far vision blind spot point E is located above the first dividing line X; the curvature center of the line connecting the second upper far vision blind spot point N and the second lower far vision blind spot point F is located above the first dividing line X.

[0015] In a second aspect of the present application, there is also a pair of glasses, including the progressive lens as described above and a frame.

[0016] Beneficial effects:

[0017] The present embodiment of the utility model provides a single lens body. Each lens body is divided by a first dividing line passing horizontally through the optical center into an upper far vision area and a near vision area; the far vision area includes a far vision visual area and far vision blind spots arranged on both sides of the far vision visual area. By limiting the channel width and the height ratio of the far vision blind spots, the far vision visual area is finally presented as a quasi-elliptical shape along the direction of the first dividing line. The technical effects of this design are mainly reflected in the following aspects:

[0018] 1. The quasi-elliptical far vision visual area can provide a wider field of view by reducing the far vision blind spots, especially in the horizontal direction. Since in the driving scenario, the wearer needs to frequently scan the road conditions, traffic signs, vehicles, pedestrians, etc. ahead. The quasi-elliptical design can better match the natural scanning angle of the human eye in the horizontal direction, improving driving safety. And during driving, if there is obvious distortion at the lens edge, it may affect the driver's accurate judgment of the surrounding environment. The quasi-elliptical shape helps to reduce the visual distortion and aberration at the lens edge, ensuring that the driver obtains clear and accurate visual information in the main fixation area;

[0019] 2. Constraining the far vision blind spots within a smaller range enables the far vision visual area to present a quasi-elliptical shape stretched along the direction of the first dividing line X, which can greatly improve the hyperopia performance of the lens in the driving scenario.

[0020] Other features and advantages of the embodiments of the present utility model will be described in the subsequent specific implementation part. Brief description of the drawings

[0021] In order to more clearly illustrate the specific implementation manners of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific implementation manners or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Among them Figure 1 is the front schematic view of the progressive lens provided by the embodiment of the present utility model;

[0023] Reference numeral

[0024] 100, lens body;

[0025] 10, distance vision area

[0026] 11, far vision area; 12, far blind area;

[0027] 20, near vision area;

[0028] 21, near vision area; 22, near blind area. Detailed implementation manner

[0029] In order to make the above and other features and advantages of the present utility model clearer, the present utility model will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art, and are merely exemplary and not restrictive.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] Continuing from the foregoing, in view of the technical problems existing in the existing progressive lenses, a general inventive concept of an embodiment of the present utility model provides a brand-new progressive lens with a wide and far viewing angle, aiming to solve the above technical problems.

[0033] Such as Figure 1A single lens body 100 of a progressive lens is demonstrated. Each lens body 100 is divided into a distant vision area 10 and a near vision area 20 in the upper part with the first dividing line X passing horizontally through the optical center O as the boundary. The distant vision area 10 includes a far vision area 11 using an optical single vision lens and far vision blind areas 12 arranged on both sides of the far vision area 11, and the far vision area 11 presents an approximately elliptical shape.

[0034] In the design of spectacle lenses, the "optical center O" refers to the optical center point of the lens and is also a reference point in lens design. It is usually near the geometric center of the lens but may be offset due to the lens design. The first dividing line X is an assumed line that horizontally passes through the optical center O of the lens and is used to divide the lens into two different areas (the distant vision area 10 and the near vision area 20).

[0035] Among them, the distant vision area 10 is used for the hyperopia scenario and includes the far vision area 11 and the far vision blind areas 12. Based on a general inventive concept of the embodiments of the present utility model, the far vision area 11 is designed to be approximately elliptical to optimize the field of view and clarity during hyperopia. The near vision area 20 is located in the lower part of the lens and is used for reading or fine work during myopia. The far vision blind areas 12 are located on both sides of the far vision area 11, and their main function is to reduce visual interference during the transition from the far vision area to the near vision area and help the user switch the line of sight more naturally.

[0036] In the embodiments of the present utility model, the approximately elliptical far vision area 11 can provide a wider field of view by reducing the far vision blind areas 12, especially in the horizontal direction. Since the wearer needs to frequently scan the road conditions, traffic signs, vehicles, pedestrians, etc. ahead during driving. The approximately elliptical design can better match the natural scanning angle of the human eye in the horizontal direction and improve driving safety. And during driving, if there is obvious distortion at the lens edge, it may affect the driver's accurate judgment of the surrounding environment. The approximately elliptical shape helps to reduce visual distortion and aberration at the lens edge and ensure that the driver obtains clear and accurate visual information in the main fixation area.

[0037] To achieve the above concept, an initial channel is formed by connecting the first far vision blind area low point E and the second far vision blind area low point F. The initial channel width of the initial channel is set to 10 to 15 mm. At the two side edges of the distant vision area 10, there are respectively a first far vision blind area high point M and a second far vision blind area high point N, and a first far vision blind area low point E and a second far vision blind area low point F located on the first dividing line X and respectively on the left and right sides of the optical center O; the vertical distance between the first far vision blind area high point M and the optical center O is l1, and the vertical distance between the second far vision blind area high point N and the optical center O is l2; l1 is 1 / 3L to 2 / 5L, l2 is 1 / 3L to 2 / 5L, and L is the vertical height of the distant vision area 10.

[0038] It is understandable that the two points of the first far - vision blind - zone high points M and N are respectively located on the two side edges of the far - vision area 10, and are the highest points at the junction of the blind - zone and the visual area. The two points of the first far - vision blind - zone low points E and F are located on the first dividing line X, that is, on the left and right sides of the optical center O, and are the points on the horizontal direction of the far - vision blind - zone 12 that are closest to the optical center. The vertical - distance parameters l1 and l2 respectively represent the vertical distances between the first far - vision blind - zone high points M and N and the optical center O. These two distances are set to be between 1 / 3 and 2 / 5 of the vertical height L of the lens, so as to reduce the area size of the far - vision blind - zone 12, which helps to balance the smoothness of visual transition and expand the visual field range of the far - vision area 11; L is the vertical height of the far - vision area 10, which is the height of the entire lens used for the hyperopia part in the vertical direction.

[0039] In the embodiment of the present utility model, the first dividing line X passing through the optical center O is used as the demarcation line to distinguish the far - vision area 10 and the near - vision area 20; and further restrict the height ratio of the high points of the far - vision blind - zone 12 in the far - vision area 10 and the width of the initial channel on the first dividing line X, so as to confine the far - vision blind - zone 12 within a smaller range, so that the far - vision area 11 can present an approximately elliptical shape stretched along the direction of the first dividing line X, which can greatly improve the hyperopia performance of the lens in the driving scenario.

[0040] Specifically, the intersection points of the first dividing line X and the two sides of the lens body 100 are respectively the first horizontal intersection point C and the second horizontal intersection point D; among them, the connection line of the first horizontal intersection point C, the first far - vision blind - zone low point E, and the first far - vision blind - zone high point M encloses the far - vision blind - zone 12 on one side; the connection line of the second horizontal intersection point D, the second far - vision blind - zone low point F, and the second far - vision blind - zone high point N encloses the far - vision blind - zone 12 on the other side.

[0041] That is, the two points of the horizontal intersection points C and D are respectively located at the junctions of the left and right side edges of the lens body 100 and the first dividing line X, and the far - vision blind - zone 12 is enclosed by the connection line of the first horizontal intersection point C (or D), the corresponding far - vision blind - zone low point E (or F), and the far - vision blind - zone high point M (or N). By clearly demarcating the boundary of the far - vision blind - zone and based on the above - mentioned limitations of the overall inventive concept, the area size of the far - vision blind - zone 12 will be reduced, improving the visual comfort during driving.

[0042] In an optional solution of the present utility model, the far - vision area 11 adopts an optical single - vision lens with a diopter of - 1.00D to - 5.00D, which is specifically configured according to the adaptability of the wearer.

[0043] The near vision area 20 includes a near vision region 21 and near vision blind zones 22 disposed on both sides of the near vision region 21; at the two side edges of the near vision area 20 are respectively the first low point J of the near vision blind zone and the second low point K of the near vision blind zone; the connection line of the first horizontal intersection point C, the first far vision blind zone low point E, and the first low point J of the near vision blind zone encloses the near vision blind zone 22 on one side; the connection line of the second horizontal intersection point D, the second far vision blind zone low point F, and the second low point K of the near vision blind zone encloses the near vision blind zone 22 on the other side.

[0044] According to the above, the near vision region 21 is the area on the lens for viewing objects at a short distance (such as reading, writing, etc.). To provide clear short-distance vision. When the user uses this area, they should be able to clearly see nearby objects easily and comfortably.

[0045] Similarly, the near vision blind zones 22 are transitional areas disposed on both sides of the near vision region 21. The two points, the first low point J of the near vision blind zone and the second low point K of the near vision blind zone, are respectively located on the left and right sides of the bottom edge of the near vision area 20. Similar to the far vision blind zone low points E and F, they define the vertical boundaries of the near vision blind zones 22.

[0046] The connection line of the first horizontal intersection point C, the first far vision blind zone low point E, and the first low point J of the near vision blind zone encloses the near vision blind zone 22 on one side of the lens. Similarly, the connection line of the second horizontal intersection point D, the second far vision blind zone low point F, and the second low point K of the near vision blind zone encloses the near vision blind zone 22 on the other side of the lens. Thus, the clear boundaries between the near vision region 21 and the near vision blind zones 22 are ensured.

[0047] Among them, between the far vision blind zones 12 on both sides and the near vision blind zones 22, and between the central far vision region 11 and the near vision region 21, smooth transitions are adopted. That is, the change in the diopter between different vision correction regions on the lens is continuous and natural, so that the wearer will not feel obvious visual jumps or discomfort when switching the viewing distance. This design allows the wearer to select different visual regions by moving the head or line of sight, so as to obtain clear vision at different distances.

[0048] In the embodiment of the present utility model, the near vision region 21 starts to extend downward from the connection line of the first far vision blind zone low point E and the second far vision blind zone low point F to the bottom edge of the lens body 100, and the diopter of the near vision region 21 changes progressively.

[0049] Specifically, the near vision area 21 starts with the line connecting the first far vision blind spot low point E and the second far vision blind spot low point F as the initial channel. The line EF forms a natural transition area on the lens, smoothly transitioning from the far vision area or the middle vision area to the near vision area. And starting from this initial channel, the near vision area 21 extends downward to the bottom edge of the lens body 100, ensuring that when the user needs to view objects at a close distance, the line of sight can always be kept within the clear near vision area. The diopter of the near vision area 21 changes progressively, that is, starting from the initial channel, as the lens extends downward, the diopter gradually increases (usually for myopic eyes, the negative degree gradually increases, that is, the myopia correction effect gradually enhances). This progressive change helps the user obtain clear vision at different distances, while reducing visual jump and discomfort.

[0050] According to the above, the channel width of the near vision area 21 is 10 mm to 15 mm; the second dividing line Y passing vertically through the optical center O shows the intersection points of the second dividing line Y with the upper and lower edges of the lens body 100 as the first intersection point Q and the second intersection point G respectively. The vertical distance from the optical center O to the second intersection point G is the channel length of the near vision area, and the channel length is set to 8 to 12 mm.

[0051] It can be understood that the second dividing line Y is a virtual line passing vertically through the optical center O of the lens. The channel length refers to the vertical distance from the optical center O of the lens to the second intersection point G (i.e., the lower boundary of the near vision area).

[0052] Furthermore, the horizontal width between the first near vision blind spot low point J and the second near vision blind spot low point K is greater than the initial channel width, along the direction of the line connecting the optical center O to the second intersection point G, so that the channel width of the near vision area 21 decreases first and then gradually increases. That is, along the direction of the line connecting the optical center O to the second intersection point G (i.e., the lower boundary of the near vision area), the channel width of the near vision area 21 is not constant. When the channel width decreases from top to bottom first, it enables the wearer to gradually adapt to the change in focal length. When the user moves the line of sight within the near vision area, it reduces the visual jump caused by sudden changes in focal length, maintains a relatively stable and large visual perception, and reduces visual fluctuation and discomfort.

[0053] In an optional solution of the present utility model, along the direction of the line connecting the optical center O to the second intersection point G, the additional diopter ADD value of the near vision area 21 increases in increments of +0.05D, and the additional diopter ADD value range is +1.00D to +3.00D.

[0054] The target diopter of the near vision area 21 is the superposition of the addition ADD value and the diopter of the optical single vision lens. The addition ADD value increasing in steps of +0.05D means that the diopter of the lens in the near vision area changes gradually rather than suddenly jumping. This smooth transition helps to reduce the visual discomfort of the wearer and improve visual comfort. Moreover, the addition ADD value of the near vision area 21 increases in steps of +0.05D and is set within the range of +1.00D to +3.00D. This design can provide a more personalized, precise, comfortable and clear visual experience for users. By precisely controlling the increase and range of the ADD value, different user needs can be met.

[0055] The curvature center of the line connecting the first high point M of the far vision blind area and the first low point E of the far vision blind area is located above the first dividing line X; the curvature center of the line connecting the second high point N of the far vision blind area and the second low point F of the far vision blind area is located above the first dividing line X. That is, the line connecting the first high point M of the far vision blind area and the first low point E of the far vision blind area, as well as the line connecting the second high point N of the far vision blind area and the second low point F of the far vision blind area, are both concave downward. While achieving a smooth transition, it further effectively reduces the actual area size of the far vision blind area 12. This is particularly important for wearers who need a wide and clear field of vision, such as for application scenarios like drivers who need a wide viewing angle and long-term fixation on distant objects.

[0056] Furthermore, the curvature center of the line connecting the first low point E of the far vision blind area and the first low point J of the near vision blind area is set on the side away from the second dividing line Y, and the curvature center between the second low point F of the far vision blind area and the second low point K of the near vision blind area is set on the side away from the second dividing line Y, so that the entire MEJ line and the NFK line present an S-like shape. The S-like design makes the transition between different vision correction areas of the lens smoother. This helps to reduce the visual jump or discomfort felt by the wearer when switching the viewing distance and provides a more natural visual experience.

[0057] Further, the included angle formed by the line connecting the first low point J of the near vision blind area and the first intersection point Q, and the line connecting the second low point K of the near vision blind area and the first intersection point Q is less than 45 degrees; to limit the width of the channel. If the progressive channel is too wide, the change in diopter will be too gentle, and the wearer may feel visual incoherence when switching the viewing distance, thus affecting visual comfort. Moreover, an overly wide progressive channel may be difficult to achieve a smooth transition, which may lead to visual aberrations such as astigmatism and aberration. Through the above limitations, it can be ensured that the wearer obtains a clearer vision when viewing near objects.

[0058] In summary, the present embodiment of the utility model provides a single lens body. Each lens body 100 is divided into a distance vision area 10 and a near vision area 20 in the upper part with the first dividing line X passing horizontally through the optical center O as the boundary. The distance vision area 10 includes a distance vision area 11 and distance blind areas 12 provided on both sides of the distance vision area 11. By limiting the channel width and the height ratio of the distance blind areas 12, the distance vision area 11 is finally presented as a quasi-elliptical shape along the direction of the first dividing line X. The technical effects of this design are mainly reflected in the following aspects:

[0059] 1. The quasi-elliptical distance vision area can provide a wider field of view by reducing the distance blind areas, especially in the horizontal direction. Since the wearer needs to frequently scan the road conditions, traffic signs, vehicles, pedestrians, etc. ahead during driving. The quasi-elliptical design can better match the natural scanning angle of the human eye in the horizontal direction, improving driving safety. And during driving, if there is obvious distortion at the lens edge, it may affect the driver's accurate judgment of the surrounding environment. The quasi-elliptical shape helps to reduce the visual distortion and aberration at the lens edge, ensuring that the driver obtains clear and accurate visual information in the main fixation area;

[0060] 2. Constraining the distance blind areas 12 within a smaller range enables the distance vision area 11 to be presented as a quasi-elliptical shape stretched along the direction of the first dividing line X, which can greatly improve the hyperopia performance of the lens in the driving scenario.

[0061] Furthermore, those skilled in the art should understand that if all or part of the sub-modules involved in the products provided in the embodiments of the present utility model are combined, replaced, etc. through methods such as fusing, simple changes, and mutual transformation, such as moving the positions of the components; or integrating the products formed thereby; or designing them to be detachable; as long as the combined components can form a device / device / system with specific functions, replacing the corresponding components of the present utility model with such a device / device / system also falls within the protection scope of the present utility model.

[0062] In the embodiment of the present utility model, a pair of glasses is also provided. The glasses include the progressive lens described in the above embodiment and a frame that can cooperate with the progressive lens. The shape of the lens is not limited, and it can be circular, elliptical, or square

[0063] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0064] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A progressive lens, characterized in that, It includes a group of single lens bodies (100). Each lens body (100) is bounded by a first dividing line X that horizontally passes through the optical center O, dividing the lens body (100) into an upper distance vision area (10) and a near vision area (20); the distance vision area (10) includes a distance vision area (11) and distance blind areas (12) provided on both sides of the distance vision area (11), and the distance vision area (11) presents an approximately elliptical shape. Among them, at the two side edges of the distance vision area (10) are a first distance blind area high point M and a second distance blind area high point N respectively, and a first distance blind area low point E and a second distance blind area low point F that are located on the first dividing line X and are respectively provided on the left and right sides of the optical center O. An initial channel is formed by connecting the first distance blind area low point E and the second distance blind area low point F. The initial channel width of the initial channel is set to be 10 mm to 15 mm; the vertical distance between the first distance blind area high point M and the optical center O is l1, and the vertical distance between the second distance blind area high point N and the optical center O is l2; l1 is 1 / 3L to 2 / 5L, l2 is 1 / 3L to 2 / 5L, and L is the vertical height of the distance vision area (10).

2. The progressive lens according to claim 1, wherein The intersection points of the first dividing line X and the two sides of the lens body (100) are a first horizontal intersection point C and a second horizontal intersection point D respectively. Among them, the connecting line of the first horizontal intersection point C, the first distance blind area low point E, and the first distance blind area high point M encloses a distance blind area (12) on one side; the connecting line of the second horizontal intersection point D, the second distance blind area low point F, and the second distance blind area high point N encloses a distance blind area (12) on the other side.

3. The progressive lens according to claim 2, wherein The near vision area (20) includes a near vision area (21) and near blind areas (22) provided on both sides of the near vision area (21). At the two side edges of the near vision area (20) are a first near blind area low point J and a second near blind area low point K respectively. The connecting line of the first horizontal intersection point C, the first distance blind area low point E, and the first near blind area low point J encloses a near blind area (22) on one side; the connecting line of the second horizontal intersection point D, the second distance blind area low point F, and the second near blind area low point K encloses a near blind area (22) on the other side.

4. The progressive lens according to claim 3, characterized in that, The near vision area (21) starts to extend downward to the bottom edge of the lens body (100) with the connecting line of the first distance blind area low point E and the second distance blind area low point F as the initial channel, and the diopter of the near vision area (21) changes progressively.

5. A progressive lens according to claim 4, wherein Through a second dividing line Y that vertically passes through the optical center O, the intersection points with the upper and lower edges of the lens body (100) are a first intersection point Q and a second intersection point G respectively. The vertical distance from the optical center O to the second intersection point G is the channel length of the near vision area, and the channel length is set to be 8 to 12 mm.

6. The progressive lens according to claim 5, wherein The horizontal width of the first near-vision blind spot low point J and the second near-vision blind spot low point K is greater than the initial channel width, along the direction of the line connecting the optical center O to the second intersection point G, so that the channel width of the near-vision area (21) decreases and then gradually increases.

7. An progressive lens according to claim 6, characterized in that, Along the direction of the line connecting the optical center O to the second intersection point G, the addition value ADD of the near-vision area (21) increases in increments of +0.05D, and the addition value ADD ranges from +1.00D to +3.00D.

8. A progressive lens according to any one of claims 3 to 7, characterized in that The curvature center of the line connecting the first distance-vision blind spot high point M and the first distance-vision blind spot low point E is located above the first dividing line X; The curvature center of the line connecting the second distance-vision blind spot high point N and the second distance-vision blind spot low point F is located above the first dividing line X.

9. A pair of glasses, characterized in that, Comprising a progressive lens according to any one of claims 1 to 8 and a frame.

Images