阅读说明：本技术 多光菲涅尔透镜和眼睛佩戴物 (Multi-light Fresnel lens and eyewear ) 是由 付泽宇 付祖家 王玲 于 2021-08-03 设计创作，主要内容包括：本发明提供一种多光菲涅尔透镜和眼睛佩戴物,多光菲涅尔透镜包括：透镜主体,所述透镜主体具有主视觉区以及至少一个辅助视觉区,各所述辅助视觉区与所述主视觉区的屈光力不等设置；其中,各所述辅助视觉区具有多个第一凸棱,各所述第一凸棱的横截面近似呈直角三角形,各所述第一凸棱之间形成有第一间距。本发明提供的多光菲涅尔透镜旨在解决传统技术中多光透镜较为厚重、且透镜主体屈光力不易控制的问题。(The invention provides a multi-light Fresnel lens and eyewear, the multi-light Fresnel lens comprising: a lens body having a primary vision zone and at least one secondary vision zone, each secondary vision zone being of unequal refractive power setting to the primary vision zone; the auxiliary visual area is provided with a plurality of first convex ribs, the cross section of each first convex rib is approximately in a right-angled triangle shape, and a first distance is formed between every two first convex ribs. The multi-light Fresnel lens provided by the invention aims to solve the problems that the multi-light lens is thick and heavy and the refractive power of a lens main body is difficult to control in the prior art.)

1. A multi-light fresnel lens, comprising:

a lens body having a primary vision zone and at least one secondary vision zone, each secondary vision zone being of unequal refractive power setting to the primary vision zone;

the auxiliary visual area is provided with a plurality of first convex ribs, the cross section of each first convex rib is approximately in a right-angled triangle shape, and a first distance is formed between every two first convex ribs.

2. The multi-light fresnel lens of claim 1 wherein the primary viewing area has a plurality of second ribs, each of the second ribs having a cross-section that is approximately a right triangle, and a second spacing formed between each of the second ribs.

3. The multi-light fresnel lens of claim 2 wherein the lens body is a negative sphere lens, the refractive power of each secondary viewing zone is less than the refractive power of the primary viewing zone, each first ridge is greater than each second ridge if the height of each first ridge is the same as the height of each second ridge, and each first ridge is less than each second ridge if the height of each first ridge is the same as each second ridge; and/or the presence of a gas in the gas,

the lens body is a spherical positive lens, the refractive power of each auxiliary visual area is greater than that of the main visual area, each first ridge is smaller than each second ridge when the height of each first ridge is the same as that of each second ridge, and the height of each first ridge is greater than that of each second ridge when the height of each first ridge is the same as that of each second ridge.

4. The multi-light fresnel lens of claim 3 wherein each of the secondary vision areas comprises a circular secondary vision area, a fan-shaped secondary vision area, and a fan-shaped annular secondary vision area.

5. The multi-light Fresnel lens according to claim 3, wherein a plurality of progressive visual zones are further provided in a circumferential direction of each of the supplementary visual zones, and each of the progressive visual zones is provided in connection with the supplementary visual zone;

each progressive vision zone has a maximum power direction and a minimum power direction, the power of each progressive vision zone is gradually reduced from the maximum power direction to the minimum power direction, and each progressive vision zone is used for transitioning the power of the primary vision zone to each auxiliary vision zone.

6. The multi-light fresnel lens of claim 5 wherein each of the supplementary visual regions is provided as a sector-shaped supplementary visual region or a sector-shaped annular supplementary visual region, and the progressive visual region includes first progressive visual regions provided on both sides of each of the supplementary visual regions and second progressive visual regions provided at ends of each of the supplementary visual regions;

each first progressive visual area is provided with a plurality of third convex edges, the cross section of each third convex edge is approximately in the shape of a right triangle, a third interval is formed between the third convex edges, each second progressive visual area is provided with a plurality of fourth convex edges, the cross section of each fourth convex edge is approximately in the shape of a right triangle, and a fourth interval is formed between the fourth convex edges.

7. The multi-light fresnel lens of claim 6 wherein the lens body is a negative sphere lens, and the third pitches gradually increase from a side away from the auxiliary visual region to a side close to the auxiliary visual region with the third ridges having the same height;

under the condition that the heights of the fourth convex ridges are equal, the fourth distance is gradually increased from the end, away from the auxiliary visual area, of the second progressive visual area to the end, close to the auxiliary visual area, of the second progressive visual area.

8. The multi-light fresnel lens of claim 7 wherein, with the third pitches being equal, the third ridges have heights that gradually decrease from the end away from the supplementary visual area to the end near the supplementary visual area;

under the condition that the fourth intervals are equal, the height of the fourth convex edge is gradually reduced from the end of the second progressive visual area far away from the auxiliary visual area to the end close to the auxiliary visual area.

9. The multi-light Fresnel lens according to claim 6, wherein the lens body is a positive spherical lens, and the third pitches are gradually decreased from a side away from the auxiliary visual region to an end near the auxiliary visual region with the heights of the third ridges being equal;

under the condition that the heights of the fourth convex ridges are equal, the fourth distance is gradually reduced from the end, away from the auxiliary visual area, of the second progressive visual area to the end, close to the auxiliary visual area, of the second progressive visual area.

10. The multi-light fresnel lens of claim 9 wherein, with the third pitches being equal, the third ridges have heights that gradually increase from an end away from the supplementary visual area to an end near the supplementary visual area;

under the condition that the fourth intervals are equal, the height of the fourth convex edge is gradually increased from the end, away from the auxiliary visual area, of the second progressive visual area to the end, close to the auxiliary visual area, of the second progressive visual area.

11. An eyewear article, comprising:

a multi-light fresnel lens according to any one of claims 1 to 10;

a carrier for mounting the multi-light Fresnel lens.

Technical Field

The invention relates to the technical field of lenses, in particular to a multi-light Fresnel lens and an eyewear.

Background

Because of the diversity and complexity of visual activities of people and the inconvenience of using a single reading lens, bifocal lenses, trifocal lenses, multiphoton lenses and progressive lenses have been developed gradually to solve the problem of vision in both near and far distances on the same lens. However, the higher the power of the spectacle lens, the thicker the spectacle lens, the higher the weight of the spectacle lens. For example, when the power of the negative lens multi-optical lens is higher, the peripheral area of the lens is very thick, and the visual effect is poor and the range of seeing a normal visual field is small; and the heaviness of the thicker lenses when mounted on the frame also causes discomfort and the aesthetic appeal gradually decreases. In order to make the lens thinner, manufacturers choose optical materials with high refractive index for making the lens, however, these materials are expensive, which makes the lens price rise, and the lens with higher refractive index can alleviate some of the above problems, but still can not reduce the thickness of the lens to a great extent. The conventional progressive lens has a large astigmatic region and the variation of astigmatism cannot be effectively controlled. Therefore, it is a technical problem to be solved by those skilled in the art to provide a portable and controllable multi-lens system.

Disclosure of Invention

The invention provides a multi-light Fresnel lens and an eyewear, which are used for solving the problems that the multi-light lens is thick and heavy and the refractive power of a lens main body is difficult to control in the prior art.

To solve the above problems, the present invention provides a multi-light fresnel lens, comprising:

a lens body having a primary vision zone and at least one secondary vision zone, each secondary vision zone being of unequal refractive power setting to the primary vision zone;

the auxiliary visual area is provided with a plurality of first convex ribs, the cross section of each first convex rib is approximately in a right-angled triangle shape, and a first distance is formed between every two first convex ribs.

According to the multi-light Fresnel lens provided by the invention, the primary visual area is provided with a plurality of second convex ribs, the cross sections of the second convex ribs are approximately right-angled triangles, and a second distance is formed between the second convex ribs.

According to the multi-light fresnel lens provided by the present invention, the lens body is a negative spherical lens, the refractive power of each auxiliary visual area is smaller than that of the primary visual area, each first ridge is larger than each second ridge in the case that the height of each first ridge is the same as that of each second ridge, and the height of each first ridge is smaller than that of each second ridge in the case that the height of each first ridge is the same as that of each second ridge; and/or the presence of a gas in the gas,

the lens body is a spherical positive lens, the refractive power of each auxiliary visual area is greater than that of the main visual area, each first ridge is smaller than each second ridge when the height of each first ridge is the same as that of each second ridge, and the height of each first ridge is greater than that of each second ridge when the height of each first ridge is the same as that of each second ridge.

According to the multi-light Fresnel lens provided by the invention, each auxiliary visual area comprises a circular auxiliary visual area, a fan-shaped auxiliary visual area and a fan-shaped annular auxiliary visual area.

According to the multi-light Fresnel lens provided by the invention, a plurality of progressive visual zones are further arranged in the circumferential direction of each auxiliary visual zone, and each progressive visual zone is connected with the auxiliary visual zone;

each progressive vision zone has a maximum power direction and a minimum power direction, the power of each progressive vision zone is gradually reduced from the maximum power direction to the minimum power direction, and each progressive vision zone is used for transitioning the power of the primary vision zone to each auxiliary vision zone.

According to the multi-light Fresnel lens provided by the invention, each auxiliary visual area is set to be a fan-shaped auxiliary visual area or a fan-shaped annular auxiliary visual area, and the progressive visual area comprises a first progressive visual area arranged on two sides of each auxiliary visual area and a second progressive visual area arranged at the end part of each auxiliary visual area;

each first progressive visual area is provided with a plurality of third convex edges, the cross section of each third convex edge is approximately in the shape of a right triangle, a third interval is formed between the third convex edges, each second progressive visual area is provided with a plurality of fourth convex edges, the cross section of each fourth convex edge is approximately in the shape of a right triangle, and a fourth interval is formed between the fourth convex edges.

According to the multi-light fresnel lens provided by the invention, the lens main body is a negative spherical lens, and under the condition that the heights of the third convex ridges are equal, the third distances are gradually increased from one side far away from the auxiliary visual area to one side close to the auxiliary visual area;

under the condition that the heights of the fourth convex ridges are equal, the fourth distance is gradually increased from the end, away from the auxiliary visual area, of the second progressive visual area to the end, close to the auxiliary visual area, of the second progressive visual area.

According to the multi-light fresnel lens provided by the invention, under the condition that the third distances are equal, the heights of the third convex edges are gradually reduced from one end far away from the auxiliary visual area to one end close to the auxiliary visual area;

under the condition that the fourth intervals are equal, the height of the fourth convex edge is gradually reduced from the end of the second progressive visual area far away from the auxiliary visual area to the end close to the auxiliary visual area.

According to the multi-light Fresnel lens provided by the invention, the lens main body is a spherical positive lens, and under the condition that the heights of the third convex ridges are equal, the third distances are gradually reduced from one side far away from the auxiliary visual area to one end close to the auxiliary visual area;

under the condition that the heights of the fourth convex ridges are equal, the fourth distance is gradually reduced from the end, away from the auxiliary visual area, of the second progressive visual area to the end, close to the auxiliary visual area, of the second progressive visual area.

According to the multi-light fresnel lens provided by the invention, under the condition that the third distances are equal, the heights of the third convex edges are gradually increased from one end far away from the auxiliary visual area to one end close to the auxiliary visual area;

under the condition that the fourth intervals are equal, the height of the fourth convex edge is gradually increased from the end, away from the auxiliary visual area, of the second progressive visual area to the end, close to the auxiliary visual area, of the second progressive visual area.

The present invention also provides an eyewear comprising:

a multi-light Fresnel lens, which is any one of the above multi-light Fresnel lenses;

a carrier for mounting the multi-light Fresnel lens.

According to the multi-light Fresnel lens and the eyewear provided by the invention, the auxiliary visual area is arranged on the lens main body in a Fresnel mode, so that on one hand, different eye requirements of a user are met, and user experience is improved, and on the other hand, the weight and thickness of the lens are further reduced under the condition of ensuring the using effect of the lens by the auxiliary visual area in the Fresnel mode, and the wearing comfort of the user is improved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic top view structure of a first embodiment (negative spherical mirror) of a multi-light fresnel lens provided by the present invention;

FIG. 2 is a schematic top view of a multi-Fresnel lens according to a second embodiment (a plurality of negative spherical mirror auxiliary visual zones) of the present invention;

FIG. 3 is a schematic top view of a third embodiment (positive spherical lens) of the multi-light Fresnel lens provided by the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

FIG. 5 is a schematic top view of a fourth embodiment of a multi-Fresnel lens (with the pitch of the ribs of the negative spherical lens being continuously varied) provided by the present invention;

FIG. 6 is an enlarged partial schematic view of FIG. 5;

fig. 7 is a schematic cross-sectional structural view of a fifth embodiment (the height of each rib of the negative lens is continuously changed) of the multi-light fresnel lens provided by the invention.

Reference numerals:

1: a multi-light Fresnel lens; 2: a lens body; 3: a primary vision zone;

4: a first rib; 5: a first pitch; 6: an auxiliary visual area;

7: a second rib; 8: a second pitch; 9: a first progressive visual zone;

10: a third rib; 11: a third pitch; 12: a second progressive visual zone;

13: a fourth rib; 14: a fourth pitch; 15: a progressive vision zone.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The multi-light fresnel lens 1 and eyewear provided by the present invention will be described below with reference to fig. 1-7.

Because of the diversity and complexity of visual activities of people and the inconvenience of using a single reading lens, bifocal lenses, trifocal lenses, multiphoton lenses and progressive lenses have been developed gradually to solve the problem of vision in both near and far distances on the same lens. As described above, the higher the power of the multi-light lens, the thicker the thickness of the multi-light lens, and the higher the weight of the multi-light lens. For example, when the power of the negative lens multi-optical lens is higher, the peripheral area of the lens is very thick, and the visual effect is poor and the range of seeing a normal visual field is small; and the heaviness of the thicker lenses when mounted on the frame also causes discomfort and the aesthetic appeal gradually decreases. In order to make the lens thinner, manufacturers choose optical materials with high refractive index for making the lens, however, these materials are expensive, which makes the lens price rise, and the lens with higher refractive index can alleviate some of the above problems, but still can not reduce the thickness of the lens to a great extent.

In the prior art, a fresnel lens is understood to mean that a continuous surface portion of the lens is "collapsed" onto a plane, so that a portion of the lens having the ability to deflect light rays is retained and removed from a portion of the lens having no ability to deflect light rays, thereby achieving the effect of reducing the total weight of the lens. One surface of the lens surface of the Fresnel lens is a smooth surface, and the other surface is recorded with concentric circular grooves from small to large. The spherical Fresnel lens is formed by a series of sawtooth-shaped convex edges when viewed from the cross section, and when the distance between the convex edges is small enough, each sawtooth can be regarded as a tiny prism; the concentric annular ribs are rotationally symmetrical in plan view. For a Fresnel lens, the refractive power, the groove spacing, the groove depth or the height of the Fresnel lens are in a certain relationship, and when the height is fixed, the diopter decreases with the increase of the spacing between the ridges; when the width is fixed, the thickness and the weight of the lens can be further reduced under the condition that the refractive power effect of the lens is ensured by the Fresnel lens with the diopter increased along with the increase of the height of the convex edge.

In order to reduce the total weight of the lens and improve the aesthetic appearance of the lens, the invention provides a multi-light fresnel lens 1, comprising: the lens comprises a lens body 2, wherein the lens body 2 is provided with a main visual area 3 and at least one auxiliary visual area 6, the refractive power of each auxiliary visual area 6 is different from that of the main visual area 3, and the auxiliary visual areas 6 are used for meeting different eye requirements of users. For example, a near vision auxiliary area is arranged on a near vision lens (negative spherical lens), the refractive power of the near vision auxiliary area is smaller than that of the main vision area 3, and the near vision auxiliary area is used for helping a user to see an area with a short distance, relieving eye fatigue and protecting eyesight; the far vision lens (emmetroscope) provides a near auxiliary vision zone, the power of which is greater in the near auxiliary vision zone 6 than in the primary vision zone 3, for assisting the user in seeing a near area. In the technical scheme provided by the invention, each auxiliary visual area 6 is provided with a plurality of first ribs 4, the cross section of each first rib 4 is approximately in a right triangle shape, and a first interval 5 is formed between every two first ribs 4. It can be understood that each auxiliary visual area 6 is set to be in a Fresnel form, and the auxiliary visual areas 6 are set on the lens main body 2 in a Fresnel form, so that different eye requirements of a user are met, user experience is improved, and on the other hand, the auxiliary visual areas 6 in the Fresnel form provide two clear visual ranges of far and near under the condition of ensuring the using effect of the lens.

In order to further reduce the thickness and the mass of the lens, the invention provides a technical scheme that the primary vision area 3 is provided with a plurality of second convex ribs 7, the cross section of each second convex rib 7 is approximately in a right-angled triangle, and a second interval 8 is formed between each second convex rib 7. Through setting up primary vision district 3 and supplementary vision district 6 into fei nieer form, can reduce the thickness and the weight of lens effectively, improve user's use and experience.

Specifically, referring to fig. 1, in the first embodiment of the present invention, the lens body 2 is a negative sphere (near vision), the refractive power of each auxiliary visual area 6 is smaller than that of the primary visual area 3 (the near vision needs to be adjusted smaller than that of the far vision), and in the case that the height of each first rib 4 is the same as that of each second rib 7, the distance is inversely proportional to the refractive power, so that each first distance 5 is larger than each second distance 8. Approximately, if the first pitches 5 and the second pitches 8 are the same, the height of the first ribs 4 is smaller than the height of the second ribs 7 because the height is proportional to the refractive power. Referring to fig. 2, the number of the auxiliary visual regions 6 is 1 in fig. 1, and in a second embodiment of the present invention, the number of the auxiliary visual regions 6 is plural. The auxiliary visual area may be formed in various shapes, and the required short-distance visual position, the required auxiliary refractive power, and the short-distance working range are different for each individual, so the number, refractive power, range, and installation position of the auxiliary visual area 6 should be set according to the eye demand of the user, which is not limited in the present invention.

Similarly, referring to fig. 3, in a third embodiment of the present invention, the lens body 2 is a positive sphere (far vision), and the power of each auxiliary vision zone 6 is greater than the power of the primary vision zone 3 (presbyopic eyes need to use more accommodation near than far vision). Specifically, in the case where the height of each first rib 4 is the same as the height of each second rib 7, each first pitch 5 is smaller than each second pitch 8 since the pitch is inversely proportional to the refractive power. Referring to fig. 4, the first pitch 5 is smaller than the second pitch 8 in fig. 4. Approximately, if the first pitches 5 and the second pitches 8 are the same, the height of the first ribs 4 is greater than that of the second ribs 7 because the height is proportional to the refractive power.

In the case where the lens body 2 is a negative sphere lens or a positive sphere lens, the auxiliary visual regions 6 may be provided in plural numbers so as to satisfy visual demands of users at different distances, and in the case where the auxiliary visual regions 6 are provided in plural numbers, the refractive power of the auxiliary visual regions 6 may be set differently according to the demands of users for eyes. In addition, it should be noted that the optical power of each zone in each auxiliary vision zone 6 is the same to meet the vision requirements at different distances.

As mentioned above, the shape of the auxiliary visual area 6 can be set according to the eye demand of the user, and can be a circular auxiliary visual area 6, a fan-shaped auxiliary visual area 6 or a fan-shaped annular auxiliary visual area 6, in the technical solution provided by the present invention, the auxiliary visual area 6 can be set to be circular, in which case, each first rib 4 is set to be annular; the auxiliary viewing area 6 may also be provided as a sector of a circle, in which case each first rib 4 is partly annular and partly semi-annular.

Since the refractive power changes of the auxiliary visual area 6 and the primary visual area 3 are discontinuous changes, the continuous visual demand at the far, middle and near distances cannot be satisfied. Therefore, in the technical solution provided by the present invention, please refer to fig. 5, a plurality of progressive visual zones 15 are further disposed in the circumferential direction of each auxiliary visual zone 6, and each progressive visual zone is connected to the auxiliary visual zone 6; each progressive vision zone 15 has a maximum power direction and a minimum power direction, the power of each progressive vision zone is gradually reduced from the maximum power direction to the minimum power direction, and each progressive vision zone 15 is used for transitioning the power of the primary vision zone 3 to the auxiliary vision zone 6.

When the lens body 2 is a negative lens, the maximum refractive power of each progressive visual zone 15 is equal to or less than the refractive power of the primary visual zone 3, and the minimum refractive power is equal to or more than the refractive power of the auxiliary visual zone 6; when the lens body 2 is a positive lens, the maximum refractive power of each progressive visual zone 15 is equal to or greater than the refractive power of the supplementary visual zone 6, and the minimum refractive power is equal to or greater than the refractive power of the primary visual zone 3. Because the refractive power of each progressive vision area is gradually changed, the refractive power transition from the main vision area 3 to each auxiliary vision area 6 can be completed, so that a whole-course continuous visual effect is provided at a far distance, a middle distance and a near distance, the imaging effect of the lens is improved, and the image jump phenomenon caused by large diopter difference of the connecting part of the auxiliary vision area 6 and the main vision area 3 is avoided.

As described above, the auxiliary visual region 6 may be variously shaped, and in the case where the auxiliary visual region 6 is provided in a fan shape or a fan ring shape, the progressive visual region 15 includes the first progressive visual region 9 provided on both sides of the auxiliary visual region 6 and the second progressive visual region 12 provided at an end of the auxiliary visual region 6; each first progressive viewing zone 9 has a plurality of third ribs 10, the cross section of each third rib 10 is approximately in the shape of a right triangle, a third space 11 is formed between the third ribs 10, each second progressive viewing zone 12 has a plurality of fourth ribs 13, the cross section of each fourth rib 13 is approximately in the shape of a right triangle, and a fourth space is formed between the fourth ribs 13.

It should be noted that the first progressive vision zone 9 and the second progressive vision zone 12 are both provided in a fresnel form, which facilitates molding of the lens body 2, further reduces the thickness and weight of the lens, and controls the power change rate of the first progressive vision zone 9 and the second progressive vision zone 15 (e.g., changes the range and power change form of the first and second progressive vision zones). The two first progressive vision zones 9 on both sides of the supplementary vision zone 6 are used to transition the power on both sides of the supplementary vision zone 6 and the second progressive vision zone 12 is used to transition the power at the end of the supplementary vision zone 6.

Since the auxiliary visual area 6 extends forward from the lens boundary in the conventional art (i.e. the boundary of the auxiliary visual area 6 coincides with a part of the boundary of the lens body 2), the present invention provides a technical solution in which the auxiliary visual area 6 has only one second progressive visual area 12, and if one boundary of the auxiliary visual area 6 does not coincide with the boundary of the lens body 2, two second progressive visual areas 12 are required to be disposed at both ends of the auxiliary visual area 6, which is not limited by the present invention.

Specifically, referring to fig. 5-6, the lens body 2 is a negative sphere lens, and under the condition that the heights of the third ribs 10 are equal, the third pitches 11 are gradually increased from the side far away from the auxiliary visual area 6 to the side close to the auxiliary visual area 6; that is, the width of each third distance 11 gradually increases from the side far from the auxiliary visual area 6 to the side near the auxiliary visual area 6, and the width of each third distance 11 is irregularly arranged. Under the condition that the heights of the fourth ribs 13 are equal, the fourth distance is gradually increased from the end of the second progressive visual area 12 far away from the auxiliary visual area 6 to the end close to the auxiliary visual area 6; i.e. the width of each fourth pitch is regularly arranged, but the width of each fourth pitch is gradually increased from the end of the second progressive vision zone 12 remote from the supplementary vision zone 6 to the end close to the supplementary vision zone 6.

The pitch is regular when the height of the ribs is the same as described above. Referring to fig. 7, under the condition that the third pitches 11 are equal, the height of each third rib 10 is gradually decreased from the end far away from the auxiliary visual area 6 to the end close to the auxiliary visual area 6; that is, the height of each third rib 10 is gradually reduced from the side far from the auxiliary visual area 6 to the side near the auxiliary visual area 6, and the height of each third rib 10 is irregularly arranged. The fourth ribs 13 are arranged to gradually decrease in height from the end of the second progressive visual area 12 away from the supplementary visual area 6 to the end close to the supplementary visual area 6, with the respective fourth pitches 14 being equal. I.e. the height of each fourth rib is regularly arranged, but the height of each fourth rib 13 is gradually reduced from the end of the second progressive visual area 12 away from the supplementary visual area 6 to the end close to the supplementary visual area 6.

The above is a change rule of the negative spherical lens, and approximately, in the case that the lens body 2 is the positive spherical lens, and in the case that the heights of the third ribs 10 are equal, the third pitches 11 are gradually decreased from the side far away from the auxiliary visual area 6 to the end near the auxiliary visual area 6; in the case where the heights of the fourth ribs 13 are equal, the fourth distance 14 is gradually decreased from the end of the second progressive visual area 12 far from the supplementary visual area 6 to the end near the supplementary visual area 6.

Under the condition that the third intervals 11 are equal, the height of each third rib 10 is gradually increased from one end far away from the auxiliary visual area 6 to one end close to the auxiliary visual area 6; in the case that the fourth pitches 14 are equal, the height of the fourth rib 13 is gradually increased from the end of the second progressive visual area 12 far away from the auxiliary visual area 6 to the end near the auxiliary visual area 6.

The power change of each progressive visual zone 15 may be a linear change or a step-type change, and in this embodiment, the power change is a step-type change, which is not limited in the present invention. In the actual production process, in order to improve the imaging effect, the height and the interval of the ribs are continuously changed, so that the ribs are arranged in a mutually connected mode.

When there are a plurality of supplementary visual zones 6, there are a plurality of first progressive visual zones 9 and a plurality of second progressive visual zones 12, respectively, and the present invention is not limited thereto.

On the basis of the multi-light fresnel lens 1, the present invention further provides an eyewear, which includes the multi-light fresnel lens 1 and a carrier, where the carrier is used for mounting the multi-light fresnel lens 1, and may be a spectacle frame, and the like, and the present invention is not limited thereto. Since the multi-light fresnel lens 1 is the main point of the present invention, other structures of the eyewear will not be described in detail in this embodiment.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.