ophthalmic lenses

Abstract

An ophthalmic lens includes a central optical region, a first outer ring optical region, a second outer ring optical region, and a third outer ring optical region; the first outer ring optical region surrounds the central optical region; the second outer ring optical region surrounds the first outer ring optical region; and the third outer ring optical region surrounds the second outer ring optical region; wherein the ophthalmic lens defines a first refractive correction region, a second refractive correction region, a third refractive correction region, and a fourth refractive correction region, which are arbitrarily arranged in the central optical region, the first outer ring optical region, the second outer ring optical region, and the third outer ring optical region, thereby increasing the diversity of refractive power arrangement of the ophthalmic lens.

Description

[Technical Field]

[0001] This invention relates to ophthalmic lenses; in particular, it refers to a multifocal ophthalmic lens. [Previous Technology]

[0002] With the popularization of 3C products, the incidence of myopia in children and adolescents is showing a trend of younger age, resulting in a significant increase in the proportion of patients with high myopia. Among them, vision problems are not limited to myopia and hyperopia, but are also often accompanied by astigmatism. When light passes through the cornea and focuses normally on the retina, it can form a clear image; however, if the light cannot focus on a single focal point, but forms multiple focal points, astigmatism will occur, which will lead to problems such as image distortion, blurring and other issues when viewing objects at near and far distances, seriously affecting the quality of vision.

[0003] The traditional main method for correcting visual deviation is to wear ophthalmic lenses, such as contact lenses. Since the refractive power of traditional ophthalmic lenses with multifocal vision correction function is mostly designed to gradually increase from the central area to the peripheral area, this refractive power change pattern can easily cause wearers to feel discomfort, especially when used for a long time, which is difficult to tolerate and reduces the effect of vision control. [Summary of the Invention]

[0004] In view of the above, the purpose of the present invention is to provide an ophthalmic lens that provides a multifocal refractive power design and allows for arbitrary changes in the arrangement of refractive powers according to vision correction needs, thereby reducing visual fatigue and making the ophthalmic lens clearer and more comfortable to wear.

[0005] To achieve the above objectives, the ophthalmic lens provided by the present invention includes a central optical region, a first outer ring optical region, a second outer ring optical region, and a third outer ring optical region; the central optical region has a center point; the first outer ring optical region surrounds the central optical region; the second outer ring optical region surrounds the first outer ring optical region; and the third outer ring optical region surrounds the second outer ring optical region; wherein the ophthalmic lens defines a first refractive correction region, a second refractive correction region, a third refractive correction region, and a fourth refractive correction region, the first refractive correction region, the second refractive correction region, the third refractive correction region, and the fourth refractive correction region being arbitrarily disposed within the central optical region, the first outer ring optical region, the second outer ring optical region, and the third outer ring optical region; the ophthalmic lens has a refractive power distribution curve, the first refractive correction region being located within the refractive power distribution curve. The diopter distribution curve is a horizontal straight line. The second, third, and fourth refractive correction areas are wavy on the diopter distribution curve, and each of the three areas has at least one peak. The ophthalmic lens satisfies the following range: 3.5mm ≤ Z1 + Z2 + Z3 + Z4 ≤ 5.0mm, where Z1 is the distance from the center point to the boundary of the central optical zone; Z2 is the distance from the boundary of the central optical zone to the boundary of the first outer ring optical zone; Z3 is the distance from the boundary of the first outer ring optical zone to the boundary of the second outer ring optical zone; and Z4 is the distance from the boundary of the second outer ring optical zone to the boundary of the third outer ring optical zone.

[0006] The effect of the present invention is that the ophthalmic lens, through the design of multifocal refractive power, provides the effect of reducing visual fatigue of the wearer, making the ophthalmic lens clearer and more comfortable to wear. Moreover, the ophthalmic lens can arbitrarily allocate the first refractive correction area, the second refractive correction area, the third refractive correction area, and the fourth refractive correction area in the central optical area, the first outer ring optical area, the second outer ring optical area, and the third outer ring optical area according to the vision correction needs. The refractive power of each refractive correction area is adjusted separately, thereby increasing the diversity of refractive power arrangement of the ophthalmic lens.

Implementation Method

[0007] To more clearly illustrate the present invention, preferred embodiments are described in detail below with reference to the accompanying drawings. Please refer to Figures 1A and 1B, which illustrate an ophthalmic lens 100 according to a first preferred embodiment of the present invention, comprising a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30, and a third outer ring optical region 40. In this first embodiment, the ophthalmic lens 100 is illustrated using a contact lens, but is not limited thereto.

[0008] The central optical region 10 has a center point O. The first outer ring optical region 20 surrounds the central optical region 10. The second outer ring optical region 30 surrounds the first outer ring optical region 20. The third outer ring optical region 40 surrounds the second outer ring optical region 30. In the first embodiment, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are respectively concentrically arranged with respect to the center point O.

[0009] The ophthalmic lens 100 defines a first refractive correction region A1, a second refractive correction region B1, a third refractive correction region C1, and a fourth refractive correction region D1. The first refractive correction region A1, the second refractive correction region B1, the third refractive correction region C1, and the fourth refractive correction region D1 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40, indicating that the ophthalmic lens 100 can be arbitrarily disposed in the central optical region according to vision correction requirements. The first refractive correction region A1, the second refractive correction region B1, the third refractive correction region C1, and the fourth refractive correction region D1 can be arbitrarily arranged in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40. It is not limited that the first refractive correction region A1, the second refractive correction region B1, the third refractive correction region C1, and the fourth refractive correction region D1 are arranged in sequence in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40.

[0010] In a preferred embodiment, the first refractive correction region A1 is located in one of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40, and the second refractive correction region B1 or the third refractive correction region C1 is arranged on one side of the first refractive correction region A1; in another preferred embodiment, the first refractive correction region A1 is located in the first outer ring optical region 20 or the second outer ring optical region 30, and the second refractive correction region B1 and the third refractive correction region C1 are arranged on both sides of the first refractive correction region A1; in yet another preferred embodiment, the first refractive correction region A1 is located in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40. In one of the preferred embodiments, the fourth refractive correction region D1 is arranged on one side of the first refractive correction region A1; in another preferred embodiment, the first refractive correction region A1 is located in the first outer ring optical region 20 or the second outer ring optical region 30, the second refractive correction region B1 or the third refractive correction region C1 is arranged on one side of the first refractive correction region A1, and the fourth refractive correction region D1 is arranged on the other side of the first refractive correction region A1; for example, the first refractive correction region A1, the second refractive correction region B1, the third refractive correction region C1, and the fourth refractive correction region D1 in the ophthalmic lens 100 can be selected and arranged in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40 according to Table 1 below. Table 1 is a table showing the arrangement relationship of each refractive correction region in each optical region in the ophthalmic lens. Optical area arrangement Central optical zone 10 First Outer Ring Optical Zone 20 Second outer ring optical zone 30 Third Outer Ring Optical Zone 40 Arrangement of refractive correction area and corresponding optical zone First refractive correction area A1 Second refractive correction area B1 Third refractive correction area C1 Fourth refractive correction zone D1 First refractive correction area A1 Second refractive correction area B1 Fourth refractive correction zone D1 Third refractive correction area C1 First refractive correction area A1 Third refractive correction area C1 Second refractive correction area B1 Fourth refractive correction zone D1 First refractive correction area A1 Third refractive correction area C1 Fourth refractive correction zone D1 Second refractive correction area B1 First refractive correction area A1 Fourth refractive correction zone D1 Second refractive correction area B1 Third refractive correction area C1 First refractive correction area A1 Fourth refractive correction zone D1 Third refractive correction area C1 Second refractive correction area B1 Second refractive correction area B1 First refractive correction area A1 Third refractive correction area C1 Fourth refractive correction zone D1 Second refractive correction area B1 First refractive correction area A1 Fourth refractive correction zone D1 Third refractive correction area C1 Second refractive correction area B1 Third refractive correction area C1 First refractive correction area A1 Fourth refractive correction zone D1 Second refractive correction area B1 Fourth refractive correction zone D1 First refractive correction area A1 Third refractive correction area C1 Second refractive correction area B1 Third refractive correction area C1 Fourth refractive correction zone D1 First refractive correction area A1 Second refractive correction area B1 Fourth refractive correction zone D1 Third refractive correction area C1 First refractive correction area A1 Third refractive correction area C1 First refractive correction area A1 Second refractive correction area B1 Fourth refractive correction zone D1 Third refractive correction area C1 First refractive correction area A1 Fourth refractive correction zone D1 Second refractive correction area B1 Third refractive correction area C1 Second refractive correction area B1 First refractive correction area A1 Fourth refractive correction zone D1 Third refractive correction area C1 Fourth refractive correction zone D1 First refractive correction area A1 Second refractive correction area B1 Third refractive correction area C1 Second refractive correction area B1 Fourth refractive correction zone D1 First refractive correction area A1 Third refractive correction area C1 Fourth refractive correction zone D1 Second refractive correction area B1 First refractive correction area A1 Fourth refractive correction zone D1 First refractive correction area A1 Second refractive correction area B1 Third refractive correction area C1 Fourth refractive correction zone D1 First refractive correction area A1 Third refractive correction area C1 Second refractive correction area B1 Fourth refractive correction zone D1 Second refractive correction area B1 First refractive correction area A1 Third refractive correction area C1 Fourth refractive correction zone D1 Third refractive correction area C1 First refractive correction area A1 Second refractive correction area B1 Fourth refractive correction zone D1 Second refractive correction area B1 Third refractive correction area C1 First refractive correction area A1 Fourth refractive correction zone D1 Third refractive correction area C1 Second refractive correction area B1 First refractive correction area A1

[0011] As shown in Figure 1B, in the first embodiment, the ophthalmic lens 100 is plotted on a refractive power distribution curve. The first refractive correction region A1 is located in the central optical region 10, the second refractive correction region B1 is located in the first outer ring optical region 20, the third refractive correction region C1 is located in the second outer ring optical region 30, and the fourth refractive correction region D1 is located in the third outer ring optical region 40. The first refractive correction region A1 is plotted on the refractive power distribution curve as a horizontal straight line, while the second refractive correction region B1, the third refractive correction region C1, and the fourth refractive correction region D1 are plotted on the refractive power distribution curve as continuously changing wavy lines. The third refractive correction region C1 and the fourth refractive correction region D1 each have a plurality of peaks. Specifically, the second refractive correction region B1 has a plurality of first peaks S1 and a plurality of first troughs T1 in the refractive power distribution curve, the third refractive correction region C1 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D1 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B1, the third refractive correction region C1, and the fourth refractive correction region D1 each only need to have at least one peak in the refractive power distribution curve.

[0012] To ensure that the ophthalmic lens 100 has a good visual acuity correction effect, in the first embodiment, the ophthalmic lens 100 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPS1≦1.00D; (7) -2.00D≦PPS1-PPS2≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0013] Wherein, Z1 is the distance from the center point of the central optical region 10 to the boundary of the central optical region 10, wherein the boundary of the central optical region 10 is the intersection of the central optical region 10 and the first outer ring optical region 20, and the center point is the starting point of the refractive power distribution curve; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20, wherein the boundary of the first outer ring optical region 20 is the intersection of the first outer ring optical region 20 and the second outer ring optical region 30; Z3 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the central optical region 10. 30 is the distance extending from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30, wherein the boundary of the second outer ring optical region 30 is the intersection of the second outer ring optical region 30 and the third outer ring optical region 40; Z4 is the distance extending from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40, wherein the boundary of the third outer ring optical region 40 is the outer periphery of the ophthalmic lens; PPSD is the refractive power of the first refractive correction region A1; PPS1 is the value of each of the first peaks S1 in the second refractive correction region B1. PPT1 represents the peak refractive power of each of the first troughs T1 within the second refractive correction region B1, where the peak refractive power PPS1 of the second refractive correction region B1 is based on the highest first peak S1, and the trough refractive power PPT1 of the second refractive correction region B1 is based on the lowest first trough T1; PPS2 represents the peak refractive power of each of the second peaks S2 within the third refractive correction region C1, and PPT2 represents the trough refractive power of each of the second troughs T2 within the third refractive correction region C1, where the refractive power of the third refractive correction region C1... The peak value PPS2 is based on the highest second peak S2, and the trough value PPT2 of the third refractive correction region C1 is based on the lowest second trough T2; PPS3 is the peak value of each third peak S3 in the fourth refractive correction region D1, and PPT3 is the trough value of each third trough T3 in the fourth refractive correction region D1, wherein the peak value PPS3 of the fourth refractive correction region D1 is based on the highest third peak S3, and the trough value PPT3 of the fourth refractive correction region D1 is based on the lowest third trough T3.

[0014] As can be seen from the refractive power distribution curve in Figure 1B, in the first embodiment, the distance Z1 from the center point to the boundary of the central optical region 10 is 0.8 mm, the distance Z2 from the boundary of the first outer ring optical region 20 to the boundary of the first outer ring optical region 20 is 1.4 mm, the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.2 mm, and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 1.1 mm. In the refractive power distribution curve, the central optical region 10... The total distance from the center point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.5mm; the refractive power of the first refractive correction area A1 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B1 is PPS1=-1.00D, and the valley refractive power of the second refractive correction area B1 is PPT1=-2.00D; the peak refractive power of the third refractive correction area C1 is PPS2=-1.00D, and the valley refractive power of the third refractive correction area C1 is PPT2=-3.00D; the peak refractive power of the fourth refractive correction area D1 is PPS3=-1.00D, and the valley refractive power of the fourth refractive correction area D1 is PPT3=-4.00D.

[0015] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 100 in the first embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.5mm; (2) Z1=0.8mm; (3) Z2=1.4mm; (4) Z3=1.2mm; (5) Z4=1.1mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=0; (8) PPS1-PPS2=0; (9) PPS2-PPS3=0; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=2.00D; (12) |PPS3-PPT3|=3.00D.

[0016] Thus, the first embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 100; in addition, in the first embodiment, the refractive power of the first refractive correction region A1, the second refractive correction region B1, the third refractive correction region C1 and the fourth refractive correction region D1 in the ophthalmic lens 100 are all the same, wherein the difference between the peak and trough refractive power of the second refractive correction region B1 |PPS1-PPT1| is less than the difference between the peak and trough refractive power of the third refractive correction region C1 |PPS2-PPT2|. The difference between the peak and trough refractive power of the third refractive correction region C1, |PPS2-PPT2|, is less than the difference between the peak and trough refractive power of the fourth refractive correction region D1, |PPS3-PPT3|. Thus, the ophthalmic lens 100, through its multifocal refractive power design, ensures that the refractive powers of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40 are all equal and without any difference, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 100 clearer and more comfortable to wear.

[0017] Please refer to Figure 2, which shows an ophthalmic lens 200 of the second preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the second embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0018] The ophthalmic lens 200 defines a first refractive correction region A2, a second refractive correction region B2, a third refractive correction region C2, and a fourth refractive correction region D2. The first refractive correction region A2, the second refractive correction region B2, the third refractive correction region C2, and the fourth refractive correction region D2 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region. 40; As shown in Figure 2, in the second embodiment, the ophthalmic lens 200 is plotted on the refractive power distribution curve. The first refractive correction region A2 is located in the central optical region 10, the second refractive correction region B2 is located in the first outer ring optical region 20, the third refractive correction region C2 is located in the second outer ring optical region 30, and the fourth refractive correction region D2 is located in the third outer ring optical region 40. The first refractive correction region A2 shows a horizontal distribution curve on the refractive power distribution curve. The second refractive correction region B2, the third refractive correction region C2, and the fourth refractive correction region D2 exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of these regions has a plurality of peaks. Specifically, the second refractive correction region B2 has a plurality of first peaks S1 and a plurality of first troughs T1 on the refractive power distribution curve. The third refractive correction region C2 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D2 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B2, the third refractive correction region C2 and the fourth refractive correction region D2 may each have at least one peak in the refractive power distribution curve.

[0019] To ensure that the ophthalmic lens 200 has a good vision correction effect, in the second embodiment, the ophthalmic lens 200 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0020] Where Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A2; PPS1 is the peak refractive power of each of the first peaks S1 in the second refractive correction region B2, and PPT1 is the valley refractive power of each of the first valleys T1 in the second refractive correction region B2; PPS2 is the peak refractive power of each of the second peaks S2 in the third refractive correction region C2, and PPT2 is the valley refractive power of each of the second valleys T2 in the third refractive correction region C2; PPS3 is the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D2, and PPT3 is the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D2.

[0021] As can be seen from the refractive power distribution curve in Figure 2, in the second embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm, the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.4 mm, the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.2 mm, and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 0.9 mm. The refractive power distribution curve shows that the center of the central optical region 10... The total distance from the point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.5mm; the refractive power of the first refractive correction area A2 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B2 is PPS1=-1.00D, and the valley refractive power of the second refractive correction area B2 is PPT1=-2.00D; the peak refractive power of the third refractive correction area C2 is PPS2=-1.00D, and the valley refractive power of the third refractive correction area C2 is PPT2=-2.00D; the peak refractive power of the fourth refractive correction area D2 is PPS3=-1.00D, and the valley refractive power of the fourth refractive correction area D2 is PPT3=-2.00D.

[0022] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 200 in the second embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.5mm; (2) Z1=1.0mm; (3) Z2=1.4mm; (4) Z3=1.2mm; (5) Z4=0.9mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=0; (8) PPS1-PPS2=0; (9) PPS2-PPS3=0; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0023] Thus, the second embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 200; in addition, in the second embodiment, the refractive power of the first refractive correction region A2, the second refractive correction region B2, the third refractive correction region C2, and the fourth refractive correction region D2 in the ophthalmic lens 200 are all the same, wherein the difference between the peak and trough refractive power of the second refractive correction region B2 |PPS1-PPT1|, and the difference between the peak and trough refractive power of the third refractive correction region C2 are the same. The difference between the diopter trough and the diopter trough of the fourth refractive correction zone D2 (PPS2-PPT2) are the same; thus, the ophthalmic lens 200, through its multifocal diopter design, ensures that the diopter of the central optical zone 10, the first outer ring optical zone 20, the second outer ring optical zone 30, and the third outer ring optical zone 40 are all equal without any difference, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 200 clearer and more comfortable to wear.

[0024] Please refer to Figure 3, which shows an ophthalmic lens 300 of the third preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the third embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0025] The ophthalmic lens 300 defines a first refractive correction region A3, a second refractive correction region B3, a third refractive correction region C3, and a fourth refractive correction region D3. The first refractive correction region A3, the second refractive correction region B3, the third refractive correction region C3, and the fourth refractive correction region D3 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region. 40; As shown in Figure 3, in the third embodiment, the ophthalmic lens 300 is plotted on the refractive power distribution curve. The first refractive correction region A3 is located in the central optical region 10, the second refractive correction region B3 is located in the first outer ring optical region 20, the third refractive correction region C3 is located in the second outer ring optical region 30, and the fourth refractive correction region D3 is located in the third outer ring optical region 40. The first refractive correction region A3 shows a horizontal distribution on the refractive power distribution curve. The second refractive correction region B3, the third refractive correction region C3, and the fourth refractive correction region D3 exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of these regions has a plurality of peaks. Specifically, the second refractive correction region B3 has a plurality of first peaks S1 and a plurality of first troughs T1 on the refractive power distribution curve. The third refractive correction region C3 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D3 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B3, the third refractive correction region C3 and the fourth refractive correction region D3 may each have at least one peak in the refractive power distribution curve.

[0026] To ensure that the ophthalmic lens 300 has a good vision correction effect, in the third embodiment, the ophthalmic lens 300 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0027] Where Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A3; PPS1 is the peak refractive power of each of the first peaks S1 in the second refractive correction region B3, and PPT1 is the valley refractive power of each of the first valleys T1 in the second refractive correction region B3; PPS2 is the peak refractive power of each of the second peaks S2 in the third refractive correction region C3, and PPT2 is the valley refractive power of each of the second valleys T2 in the third refractive correction region C3; PPS3 is the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D3, and PPT3 is the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D3.

[0028] As can be seen from the refractive power distribution curve in Figure 3, in the third embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.0 mm; and the distance Z4 from the boundary of the third outer ring optical region 40 to the boundary of the second outer ring optical region 30 is 1.0 mm. The refractive power distribution curve shows that the center of the central optical region 10... The total distance from the point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A3 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B3 is PPS1=-2.00D, and the valley refractive power of the second refractive correction area B3 is PPT1=-3.00D; the peak refractive power of the third refractive correction area C3 is PPS2=-4.00D, and the valley refractive power of the third refractive correction area C3 is PPT2=-5.00D; the peak refractive power of the fourth refractive correction area D3 is PPS3=-7.00D, and the valley refractive power of the fourth refractive correction area D3 is PPT3=-8.00D.

[0029] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 300 in the third embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.0mm; (4) Z3=1.0mm; (5) Z4=1.0mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=1.00D; (8) PPS1-PPS2=2.00D; (9) PPS2-PPS3=3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0030] Thus, the third embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 300; in addition, the refractive power of the first refractive correction region A3, the second refractive correction region B3, the third refractive correction region C3 and the fourth refractive correction region D3 in the ophthalmic lens 300 of the third embodiment is arranged by a progressively decreasing power change of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40, wherein the difference between the peak and trough refractive power of the second refractive correction region B3 is |PPS1 -PPT1│, the difference between the peak and trough refractive power of the third refractive correction region C3│PPS2-PPT2│ and the difference between the peak and trough refractive power of the fourth refractive correction region D3│PPS3-PPT3│ are all the same; thus, by means of a multifocal refractive power design, the ophthalmic lens 300 reduces the difference in refractive power between any two adjacent central optical regions 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 300 clearer and more comfortable to wear.

[0031] Please refer to Figure 4, which shows an ophthalmic lens 400 of the fourth preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the fourth embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0032] The ophthalmic lens 400 defines a first refractive correction region A4, a second refractive correction region B4, a third refractive correction region C4, and a fourth refractive correction region D4. The first refractive correction region A4, the second refractive correction region B4, the third refractive correction region C4, and the fourth refractive correction region D4 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region. 40; As shown in Figure 4, in the fourth embodiment, the ophthalmic lens 400 is plotted on the refractive power distribution curve. The first refractive correction region A4 is located in the central optical region 10, the second refractive correction region B4 is located in the first outer ring optical region 20, the third refractive correction region C4 is located in the second outer ring optical region 30, and the fourth refractive correction region D4 is located in the third outer ring optical region 40. The first refractive correction region A4 shows a horizontal distribution on the refractive power distribution curve. The second refractive correction region B4, the third refractive correction region C4, and the fourth refractive correction region D4 exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of these regions has a plurality of peaks. Specifically, the second refractive correction region B4 has a plurality of first peaks S1 and a plurality of first troughs T1 on the refractive power distribution curve. The third refractive correction region C4 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D4 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B4, the third refractive correction region C4 and the fourth refractive correction region D4 may each have at least one peak in the refractive power distribution curve.

[0033] To ensure that the ophthalmic lens 400 has a good vision correction effect, in the fourth embodiment, the ophthalmic lens 400 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0034] Where Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A4; PPS1 is the peak refractive power of each of the first peaks S1 in the second refractive correction region B4, and PPT1 is the valley refractive power of each of the first valleys T1 in the second refractive correction region B4; PPS2 is the peak refractive power of each of the second peaks S2 in the third refractive correction region C4, and PPT2 is the valley refractive power of each of the second valleys T2 in the third refractive correction region C4; PPS3 is the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D4, and PPT3 is the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D4.

[0035] As can be seen from the refractive power distribution curve in Figure 4, in the fourth embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.0 mm; and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 1.0 mm. The refractive power distribution curve shows that the center of the central optical region 10... The total distance from the point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A4 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B4 is PPS1=-2.00D, and the valley refractive power of the second refractive correction area B4 is PPT1=-3.00D; the peak refractive power of the third refractive correction area C4 is PPS2=-4.00D, and the valley refractive power of the third refractive correction area C4 is PPT2=-5.00D; the peak refractive power of the fourth refractive correction area D4 is PPS3=-1.00D, and the valley refractive power of the fourth refractive correction area D4 is PPT3=-2.00D.

[0036] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 400 in the fourth embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.0mm; (4) Z3=1.0mm; (5) Z4=1.0mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=1.00D; (8) PPS1-PPS2=2.00D; (9) PPS2-PPS3=-3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0037] Thus, the fourth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 400; in addition, in the fourth embodiment, the refractive power of the first refractive correction region A4, the second refractive correction region B4 and the third refractive correction region C4 in the ophthalmic lens 400 are arranged by a progressively decreasing power change of the central optical region 10, the first outer ring optical region 20 and the second outer ring optical region 30, and the refractive power of the fourth refractive correction region D4 is increased relative to the third refractive correction region C4, and the refractive power of the fourth refractive correction region D4 is the same as the refractive power of the first refractive correction region A4, wherein the second refractive correction region A4 is the same as the third refractive correction region C4. The difference between the peak and trough refractive power in region B4 (PPS1-PPT1), the difference between the peak and trough refractive power in the third refractive correction region C4 (PPS2-PPT2), and the difference between the peak and trough refractive power in the fourth refractive correction region D4 (PPS3-PPT3) are all the same. Thus, by using a multifocal refractive power design, the ophthalmic lens 400 reduces the difference in refractive power between any two adjacent central optical zones 10, the first outer ring optical zone 20, the second outer ring optical zone 30, and the third outer ring optical zone 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 400 clearer and more comfortable to wear.

[0038] Please refer to Figure 5, which shows the ophthalmic lens 500 of the fifth preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the fifth embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0039] The ophthalmic lens 500 defines a first refractive correction region A5, a second refractive correction region B5, a third refractive correction region C5, and a fourth refractive correction region D5. The first refractive correction region A5, the second refractive correction region B5, the third refractive correction region C5, and the fourth refractive correction region D5 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region. 40; As shown in Figure 5, in the fifth embodiment, the ophthalmic lens 500 is plotted on the refractive power distribution curve. The first refractive correction region A5 is located in the central optical region 10, the second refractive correction region B5 is located in the first outer ring optical region 20, the third refractive correction region C5 is located in the second outer ring optical region 30, and the fourth refractive correction region D5 is located in the third outer ring optical region 40. The first refractive correction region A5 shows a horizontal distribution on the refractive power distribution curve. The second refractive correction region B5, the third refractive correction region C5, and the fourth refractive correction region D5 exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of these regions has a plurality of peaks. Specifically, the second refractive correction region B5 has a plurality of first peaks S1 and a plurality of first troughs T1 on the refractive power distribution curve. The third refractive correction region C5 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D5 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B5, the third refractive correction region C5 and the fourth refractive correction region D5 may each have at least one peak in the refractive power distribution curve.

[0040] To ensure that the ophthalmic lens 500 has a good vision correction effect, in the fifth embodiment, the ophthalmic lens 500 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0041] Where Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A5; PPS1 is the peak refractive power of each of the first peaks S1 in the second refractive correction region B5, and PPT1 is the valley refractive power of each of the first valleys T1 in the second refractive correction region B5; PPS2 is the peak refractive power of each of the second peaks S2 in the third refractive correction region C5, and PPT2 is the valley refractive power of each of the second valleys T2 in the third refractive correction region C5; PPS3 is the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D5, and PPT3 is the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D5.

[0042] As can be seen from the refractive power distribution curve in Figure 5, in the fifth embodiment, the distance Z1 from the center point to the boundary of the central optical region 10 is 1.0 mm, the distance Z2 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm, the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.0 mm, and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 1.0 mm. In the refractive power distribution curve, the central optical region 10... The total distance from the center point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A5 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B5 is PPS1=-2.00D, and the valley refractive power of the second refractive correction area B5 is PPT1=-3.00D; the peak refractive power of the third refractive correction area C5 is PPS2=0.00D, and the valley refractive power of the third refractive correction area C5 is PPT2=-1.00D; the peak refractive power of the fourth refractive correction area D5 is PPS3=-3.00D, and the valley refractive power of the fourth refractive correction area D5 is PPT3=-4.00D.

[0043] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 500 in the fifth embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.0mm; (4) Z3=1.0mm; (5) Z4=1.0mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=1.00D; (8) PPS1-PPS2=-2.00D; (9) PPS2-PPS3=3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0044] Thus, the fifth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 500; in addition, in the fifth embodiment of the ophthalmic lens 500, the second refractive correction region B5 has a lower refractive power relative to the first refractive correction region A5, while the third refractive correction region C5 has an increased refractive power relative to the second refractive correction region B5, and the refractive power of the third refractive correction region C5 is higher than that of the first refractive correction region A5; the fourth refractive correction region D5 has a lower refractive power relative to the third refractive correction region C5, and the refractive power of the fourth refractive correction region D5 is lower than that of the second refractive correction region B5, wherein the first The difference between the peak and trough refractive power in the second refractive correction region B5 (PPS1-PPT1), the difference between the peak and trough refractive power in the third refractive correction region C5 (PPS2-PPT2), and the difference between the peak and trough refractive power in the fourth refractive correction region D5 (PPS3-PPT3) are all the same. Thus, by using a multifocal refractive power design, the ophthalmic lens 500 reduces the difference in refractive power between any two adjacent central optical zones 10, the first outer ring optical zone 20, the second outer ring optical zone 30, and the third outer ring optical zone 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 500 clearer and more comfortable to wear.

[0045] Please refer to Figure 6, which shows an ophthalmic lens 600 of the sixth preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the sixth embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0046] The ophthalmic lens 600 defines a first refractive correction region A6, a second refractive correction region B6, a third refractive correction region C6, and a fourth refractive correction region D6. The first refractive correction region A6, the second refractive correction region B6, the third refractive correction region C6, and the fourth refractive correction region D6 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region. 40; As shown in Figure 6, in the sixth embodiment, the ophthalmic lens 600 is plotted on the refractive power distribution curve. The first refractive correction region A6 is located in the central optical region 10, the second refractive correction region B6 is located in the first outer ring optical region 20, the third refractive correction region C6 is located in the second outer ring optical region 30, and the fourth refractive correction region D6 is located in the third outer ring optical region 40. The first refractive correction region A6 exhibits a horizontal distribution on the refractive power distribution curve. The second refractive correction region B6, the third refractive correction region C6, and the fourth refractive correction region D6 exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of these regions has a plurality of peaks. Specifically, the second refractive correction region B6 has a plurality of first peaks S1 and a plurality of first troughs T1 on the refractive power distribution curve. The third refractive correction region C6 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D6 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B6, the third refractive correction region C6 and the fourth refractive correction region D6 may each have at least one peak in the refractive power distribution curve.

[0047] To ensure that the ophthalmic lens 600 has a good vision correction effect, in the sixth embodiment, the ophthalmic lens 600 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0048] Where Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A6; PPS1 is the peak refractive power of each of the first peaks S1 in the second refractive correction region B6, and PPT1 is the valley refractive power of each of the first valleys T1 in the second refractive correction region B6; PPS2 is the peak refractive power of each of the second peaks S2 in the third refractive correction region C6, and PPT2 is the valley refractive power of each of the second valleys T2 in the third refractive correction region C6; PPS3 is the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D6, and PPT3 is the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D6.

[0049] As can be seen from the refractive power distribution curve in Figure 6, in the sixth embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.0 mm; and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 1.0 mm. The refractive power distribution curve shows that the center of the central optical region 10... The total distance from the point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A6 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B6 is PPS1=-2.00D, and the valley refractive power of the second refractive correction area B6 is PPT1=-3.00D; the peak refractive power of the third refractive correction area C6 is PPS2=0.00D, and the valley refractive power of the third refractive correction area C6 is PPT2=-1.00D; the peak refractive power of the fourth refractive correction area D6 is PPS3=3.00D, and the valley refractive power of the fourth refractive correction area D6 is PPT3=2.00D.

[0050] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 600 in the sixth embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.0mm; (4) Z3=1.0mm; (5) Z4=1.0mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=1.00D; (8) PPS1-PPS2=-2.00D; (9) PPS2-PPS3=-3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0051] Thus, the sixth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 600; in addition, in the sixth embodiment, the second refractive correction region B6 in the ophthalmic lens 600 has a lower refractive power than the first refractive correction region A6, and the refractive powers of the second refractive correction region B6, the third refractive correction region C6, and the fourth refractive correction region D6 are arranged by a progressively increasing power change of the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40, and the refractive powers of the third refractive correction region C6 and the fourth refractive correction region D6 are respectively higher than the refractive power of the first refractive correction region A6, wherein the The difference between the peak and trough refractive power in the second refractive correction region B6 (PPS1-PPT1), the difference between the peak and trough refractive power in the third refractive correction region C6 (PPS2-PPT2), and the difference between the peak and trough refractive power in the fourth refractive correction region D6 (PPS3-PPT3) are all the same. Thus, by using a multifocal refractive power design, the ophthalmic lens 600 reduces the difference in refractive power between any two adjacent central optical zones 10, the first outer ring optical zone 20, the second outer ring optical zone 30, and the third outer ring optical zone 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 600 clearer and more comfortable to wear.

[0052] Please refer to Figure 7, which shows an ophthalmic lens 700 of the seventh preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the seventh embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0053] The ophthalmic lens 700 defines a first refractive correction region A7, a second refractive correction region B7, a third refractive correction region C7, and a fourth refractive correction region D7. The first refractive correction region A7, the second refractive correction region B7, the third refractive correction region C7, and the fourth refractive correction region D7 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region. 40; As shown in Figure 7, in the seventh embodiment, the ophthalmic lens 700 is plotted on the refractive power distribution curve. The first refractive correction region A7 is located in the central optical region 10, the second refractive correction region B7 is located in the first outer ring optical region 20, the third refractive correction region C7 is located in the second outer ring optical region 30, and the fourth refractive correction region D7 is located in the third outer ring optical region 40. The first refractive correction region A7 shows a horizontal distribution on the refractive power distribution curve. The second refractive correction region B7, the third refractive correction region C7, and the fourth refractive correction region D7 exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of these regions has multiple peaks. Specifically, the second refractive correction region B7 has multiple first peaks S1 and multiple first troughs T1 on the refractive power distribution curve. The third refractive correction region C7 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D7 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B7, the third refractive correction region C7 and the fourth refractive correction region D7 may each have at least one peak in the refractive power distribution curve.

[0054] To ensure that the ophthalmic lens 700 has a good vision correction effect, in the seventh embodiment, the ophthalmic lens 700 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0055] Where Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A7; PPS1 is the peak refractive power of each of the first peaks S1 in the second refractive correction region B7, and PPT1 is the valley refractive power of each of the first valleys T1 in the second refractive correction region B7; PPS2 is the peak refractive power of each of the second peaks S2 in the third refractive correction region C7, and PPT2 is the valley refractive power of each of the second valleys T2 in the third refractive correction region C7; PPS3 is the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D7, and PPT3 is the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D7.

[0056] As can be seen from the refractive power distribution curve in Figure 7, in the seventh embodiment, the distance Z1 from the center point to the boundary of the central optical region 10 is 1.0 mm, the distance Z2 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm, the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.0 mm, and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 1.0 mm. In the refractive power distribution curve, the central optical region 10... The total distance from the center point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A7 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B7 is PPS1=0.00D, and the valley refractive power of the second refractive correction area B7 is PPT1=-1.00D; the peak refractive power of the third refractive correction area C7 is PPS2=-2.00D, and the valley refractive power of the third refractive correction area C7 is PPT2=-3.00D; the peak refractive power of the fourth refractive correction area D7 is PPS3=-5.00D, and the valley refractive power of the fourth refractive correction area D7 is PPT3=-6.00D.

[0057] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 700 in the seventh embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.0mm; (4) Z3=1.0mm; (5) Z4=1.0mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=-1.00D; (8) PPS1-PPS2=2.00D; (9) PPS2-PPS3=3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0058] Thus, the seventh embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 700; in addition, in the seventh embodiment, the second refractive correction region B7 of the ophthalmic lens 700 increases the refractive power relative to the first refractive correction region A7, and the refractive power of the second refractive correction region B7, the third refractive correction region C7 and the fourth refractive correction region D7 are arranged by a progressively decreasing power change of the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40, and the refractive power of the third refractive correction region C7 and the fourth refractive correction region D7 are respectively lower than the refractive power of the first refractive correction region A7, wherein The difference between the peak and trough refractive power of the second refractive correction region B7 (PPS1-PPT1), the difference between the peak and trough refractive power of the third refractive correction region C7 (PPS2-PPT2), and the difference between the peak and trough refractive power of the fourth refractive correction region D7 (PPS3-PPT3) are all the same. Thus, by using a multifocal refractive power design, the ophthalmic lens 700 reduces the difference in refractive power between any two adjacent central optical zones 10, the first outer ring optical zone 20, the second outer ring optical zone 30, and the third outer ring optical zone 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 700 clearer and more comfortable to wear.

[0059] Please refer to Figure 8, which shows an ophthalmic lens 800 of the eighth preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the eighth embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0060] The ophthalmic lens 800 defines a first refractive correction region A8, a second refractive correction region B8, a third refractive correction region C8, and a fourth refractive correction region D8. The first refractive correction region A8, the second refractive correction region B8, the third refractive correction region C8, and the fourth refractive correction region D8 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region. 40; As shown in Figure 8, in the eighth embodiment, the ophthalmic lens 800 is plotted on the refractive power distribution curve. The first refractive correction region A8 is located in the central optical region 10, the second refractive correction region B8 is located in the first outer ring optical region 20, the third refractive correction region C8 is located in the second outer ring optical region 30, and the fourth refractive correction region D8 is located in the third outer ring optical region 40. The first refractive correction region A8 shows a horizontal distribution curve on the refractive power distribution curve. The second refractive correction region B8, the third refractive correction region C8, and the fourth refractive correction region D8 exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of these regions has a plurality of peaks. Specifically, the second refractive correction region B8 has a plurality of first peaks S1 and a plurality of first troughs T1 on the refractive power distribution curve. The third refractive correction region C8 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D8 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B8, the third refractive correction region C8 and the fourth refractive correction region D8 may each have at least one peak in the refractive power distribution curve.

[0061] To ensure that the ophthalmic lens 800 has a good vision correction effect, in the eighth embodiment, the ophthalmic lens 800 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0062] Wherein, Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A8; PPS1 is the peak refractive power of each of the first peaks S1 in the second refractive correction region B8, and PPT1 is the valley refractive power of each of the first valleys T1 in the second refractive correction region B8; PPS2 is the peak refractive power of each of the second peaks S2 in the third refractive correction region C8, and PPT2 is the valley refractive power of each of the second valleys T2 in the third refractive correction region C8; PPS3 is the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D8, and PPT3 is the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D8.

[0063] As can be seen from the refractive power distribution curve in Figure 8, in the eighth embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.2 mm; and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 0.8 mm. The refractive power distribution curve shows that the distance Z1 from the center point of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm. The total distance from the center point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A8 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B8 is PPS1=0.00D, and the valley refractive power of the second refractive correction area B8 is PPT1=-1.00D; the peak refractive power of the third refractive correction area C8 is PPS2=-2.00D, and the valley refractive power of the third refractive correction area C8 is PPT2=-3.00D; the peak refractive power of the fourth refractive correction area D8 is PPS3=1.00D, and the valley refractive power of the fourth refractive correction area D8 is PPT3=0.00D.

[0064] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 800 in the eighth embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.0mm; (4) Z3=1.2mm; (5) Z4=0.8mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=-1.00D; (8) PPS1-PPS2=2.00D; (9) PPS2-PPS3=3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0065] Thus, the eighth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 800; in addition, in the ophthalmic lens 800 of the eighth embodiment, the second refractive correction region B8 increases the refractive power relative to the first refractive correction region A8, the third refractive correction region C8 decreases the refractive power relative to the second refractive correction region B8, and the refractive power of the third refractive correction region C8 is lower than that of the first refractive correction region A8, the fourth refractive correction region D8 increases the refractive power relative to the third refractive correction region C8, and the refractive power of the fourth refractive correction region D8 is higher than that of the second refractive correction region B8, wherein the first The difference between the peak and trough refractive power in the second refractive correction region B8 (PPS1-PPT1), the difference between the peak and trough refractive power in the third refractive correction region C8 (PPS2-PPT2), and the difference between the peak and trough refractive power in the fourth refractive correction region D8 (PPS3-PPT3) are all the same. Thus, by using a multifocal refractive power design, the ophthalmic lens 800 reduces the difference in refractive power between any two adjacent central optical zones 10, the first outer ring optical zone 20, the second outer ring optical zone 30, and the third outer ring optical zone 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 800 clearer and more comfortable to wear.

[0066] Please refer to Figure 9, which shows an ophthalmic lens 900 of the ninth preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the ninth embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0067] The ophthalmic lens 900 defines a first refractive correction region A9, a second refractive correction region B9, a third refractive correction region C9, and a fourth refractive correction region D9. The first refractive correction region A9, the second refractive correction region B9, the third refractive correction region C9, and the fourth refractive correction region D9 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region. 40; As shown in Figure 9, in the ninth embodiment, the ophthalmic lens 900, according to the refractive power distribution curve, has the first refractive correction region A9 located in the central optical region 10, the second refractive correction region B9 located in the first outer ring optical region 20, the third refractive correction region C9 located in the second outer ring optical region 30, and the fourth refractive correction region D9 located in the third outer ring optical region 40. The first refractive correction region A9 exhibits a horizontal distribution curve. The second refractive correction region B9, the third refractive correction region C9, and the fourth refractive correction region D9 exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of these regions has a plurality of peaks. Specifically, the second refractive correction region B9 has a plurality of first peaks S1 and a plurality of first troughs T1 on the refractive power distribution curve. The third refractive correction region C9 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D9 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B9, the third refractive correction region C9 and the fourth refractive correction region D9 only need to have at least one peak in the refractive power distribution curve.

[0068] To ensure that the ophthalmic lens 900 has a good vision correction effect, in the ninth embodiment, the ophthalmic lens 900 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0069] Wherein, Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A9; PPS1 is the peak refractive power of each of the first peaks S1 in the second refractive correction region B9, and PPT1 is the valley refractive power of each of the first valleys T1 in the second refractive correction region B9; PPS2 is the peak refractive power of each of the second peaks S2 in the third refractive correction region C9, and PPT2 is the valley refractive power of each of the second valleys T2 in the third refractive correction region C9; PPS3 is the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D9, and PPT3 is the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D9.

[0070] As can be seen from the refractive power distribution curve in Figure 9, in the ninth embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.2 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.0 mm; and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 0.8 mm. The refractive power distribution curve shows that the distance Z1 from the center point of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm; the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 0.8 mm. The total distance from the center point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A9 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B9 is PPS1=0.00D, and the valley refractive power of the second refractive correction area B9 is PPT1=-1.00D; the peak refractive power of the third refractive correction area C9 is PPS2=2.00D, and the valley refractive power of the third refractive correction area C9 is PPT2=1.00D; the peak refractive power of the fourth refractive correction area D9 is PPS3=-1.00D, and the valley refractive power of the fourth refractive correction area D9 is PPT3=-2.00D.

[0071] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 900 in the ninth embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.2mm; (4) Z3=1.0mm; (5) Z4=0.8mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=-1.00D; (8) PPS1-PPS2=-2.00D; (9) PPS2-PPS3=3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0072] Thus, the ninth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 900; in addition, in the ninth embodiment, the refractive power of the first refractive correction region A9, the second refractive correction region B9 and the third refractive correction region C9 in the ophthalmic lens 900 are arranged by a progressively increasing power change of the central optical region 10, the first outer ring optical region 20 and the second outer ring optical region 30, and the refractive power of the fourth refractive correction region D9 is lower than that of the third refractive correction region C9, and the refractive power of the fourth refractive correction region D9 is equal to that of the first refractive correction region A9, wherein the second refractive correction region A9 is lower than that of the third refractive correction region C9. The difference between the peak and trough refractive power in region B9 (PPS1-PPT1), the difference between the peak and trough refractive power in the third refractive correction region C9 (PPS2-PPT2), and the difference between the peak and trough refractive power in the fourth refractive correction region D9 (PPS3-PPT3) are all the same. Thus, by using a multifocal refractive power design, the ophthalmic lens 900 reduces the difference in refractive power between any two adjacent central optical zones 10, the first outer ring optical zone 20, the second outer ring optical zone 30, and the third outer ring optical zone 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 900 clearer and more comfortable to wear.

[0073] Please refer to Figure 10, which shows an ophthalmic lens 1000 according to the tenth preferred embodiment of the present invention. It includes a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30, and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40 in the tenth embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0074] The ophthalmic lens 1000 defines a first refractive correction region A10, a second refractive correction region B10, a third refractive correction region C10, and a fourth refractive correction region D10. The first refractive correction region A10, the second refractive correction region B10, the third refractive correction region C10, and the fourth refractive correction region D10 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region D10. School District 40; As shown in Figure 10, in the tenth embodiment, the ophthalmic lens 1000 is shown in the refractive power distribution curve. The first refractive correction region A10 is located in the central optical region 10, the second refractive correction region B10 is located in the first outer ring optical region 20, the third refractive correction region C10 is located in the second outer ring optical region 30, and the fourth refractive correction region D10 is located in the third outer ring optical region 40. The first refractive correction region A10 is shown in the refractive power distribution curve. The horizontal straight line is shown. The second refractive correction region B10, the third refractive correction region C10, and the fourth refractive correction region D10 each exhibit a continuously changing wavy shape on the refractive power distribution curve. Furthermore, each of the three regions has multiple peaks. Specifically, the second refractive correction region B10 has multiple first peaks S1 and multiple first troughs on the refractive power distribution curve. T1, the third refractive correction region C10 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D10 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B10, the third refractive correction region C10 and the fourth refractive correction region D10 only need to have at least one peak in the refractive power distribution curve.

[0075] To ensure that the ophthalmic lens 1000 has a good vision correction effect, in the tenth embodiment, the ophthalmic lens 1000 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0076] Wherein, Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A10; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B10, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B10; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C10, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C10; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D10, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D10.

[0077] As can be seen from the refractive power distribution curve in Figure 10, in the tenth embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.1 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.0 mm; and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 0.9 mm. The refractive power distribution curve shows that the center of the central optical region 10... The total distance from the point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A10 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B10 is PPS1=0.00D, and the valley refractive power of the second refractive correction area B10 is PPT1=-1.00D; the peak refractive power of the third refractive correction area C10 is PPS2=2.00D, and the valley refractive power of the third refractive correction area C10 is PPT2=1.00D; the peak refractive power of the fourth refractive correction area D10 is PPS3=5.00D, and the valley refractive power of the fourth refractive correction area D10 is PPT3=4.00D.

[0078] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 1000 in the tenth embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.1mm; (4) Z3=1.0mm; (5) Z4=0.9mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=-1.00D; (8) PPS1-PPS2=-2.00D; (9) PPS2-PPS3=-3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0079] Thus, the tenth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 1000; in addition, in the tenth embodiment, the refractive power of the first refractive correction region A10, the second refractive correction region B10, the third refractive correction region C10 and the fourth refractive correction region D10 in the ophthalmic lens 1000 are arranged by a progressively increasing power change of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40, wherein the difference between the peak and trough refractive power of the second refractive correction region B10 is │PPS 1-PPT1│, the difference between the peak and trough refractive power of the third refractive correction region C10│PPS2-PPT2│ and the difference between the peak and trough refractive power of the fourth refractive correction region D10│PPS3-PPT3│ are all the same; thus, by using a multifocal refractive power design, the ophthalmic lens 1000 reduces the difference in refractive power between any two adjacent central optical regions 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 1000 clearer and more comfortable to wear.

[0080] Please refer to Figure 11, which shows an ophthalmic lens 1100 of the eleventh preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the eleventh embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0081] The ophthalmic lens 1100 defines a first refractive correction region A11, a second refractive correction region B11, a third refractive correction region C11, and a fourth refractive correction region D11. The first refractive correction region A11, the second refractive correction region B11, the third refractive correction region C11, and the fourth refractive correction region D11 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring. Optical region 40; As shown in Figure 11, in the eleventh embodiment, the ophthalmic lens 1100 is located in the refractive power distribution curve. The first refractive correction region A11 is located in the first outer ring optical region 20, the second refractive correction region B11 is located in the central optical region 10, the third refractive correction region C11 is located in the second outer ring optical region 30, and the fourth refractive correction region D11 is located in the third outer ring optical region 40. The first refractive correction region A11 is located in the refractive power distribution curve. The line appears as a horizontal straight line. The second refractive correction region, the third refractive correction region C11, and the fourth refractive correction region D11 each exhibit a continuously changing wavy shape on the refractive power distribution curve. Furthermore, the second refractive correction region B11, the third refractive correction region C11, and the fourth refractive correction region D11 each have multiple peaks. Specifically, the second refractive correction region B11 has multiple first peaks S1 and multiple first troughs on the refractive power distribution curve. T1, the third refractive correction region C11 has a plurality of second peaks S2 and a plurality of second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D11 has a plurality of third peaks S3 and a plurality of third troughs T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B11, the third refractive correction region C11 and the fourth refractive correction region D11 only need to have at least one peak in the refractive power distribution curve.

[0082] To ensure that the ophthalmic lens 1100 has a good vision correction effect, in the eleventh embodiment, the ophthalmic lens 1100 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0083] Wherein, Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A11; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B11, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B11; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C11, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C11; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D11, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D11.

[0084] As can be seen from the refractive power distribution curve in Figure 11, in the eleventh embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.1 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 0.9 mm; and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 1.0 mm. The refractive power distribution curve shows that the center of the central optical region 10... The total distance from the point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A11 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B11 is PPS1=0.00D, and the valley refractive power of the second refractive correction area B11 is PPT1=-1.00D; the peak refractive power of the third refractive correction area C11 is PPS2=2.00D, and the valley refractive power of the third refractive correction area C11 is PPT2=1.00D; the peak refractive power of the fourth refractive correction area D11 is PPS3=5.00D, and the valley refractive power of the fourth refractive correction area D11 is PPT3=4.00D.

[0085] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 1100 in the eleventh embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.1mm; (4) Z3=0.9mm; (5) Z4=1.0mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=-1.00D; (8) PPS1-PPS2=-2.00D; (9) PPS2-PPS3=-3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0086] Thus, the eleventh embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 1100; in addition, in the eleventh embodiment, the second refractive correction region B11 and the third refractive correction region C11 are respectively arranged on both sides of the first refractive correction region in the ophthalmic lens 1100, and the second refractive correction region B11 and the third refractive correction region C11 increase the refractive power relative to the first refractive correction region A11. The refractive power arrangement of the first refractive correction region A11, the third refractive correction region C11 and the fourth refractive correction region D11 is a gradual increase in power from the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40. The third refractive correction region C11 and the fourth refractive correction region D11... The refractive power of the lens 1100 is higher than that of the second refractive correction region B11. The difference between the peak and trough refractive power of the second refractive correction region B11 (PPS1-PPT1), the difference between the peak and trough refractive power of the third refractive correction region C11 (PPS2-PPT2), and the difference between the peak and trough refractive power of the fourth refractive correction region D11 (PPS3-PPT3) are all the same. Thus, by using a multifocal refractive power design, the lens 1100 reduces the difference in refractive power between any two adjacent central optical regions 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40, thereby reducing visual fatigue for the wearer and making the lens 1100 clearer and more comfortable to wear.

[0087] Please refer to Figure 12, which shows an ophthalmic lens 1200 of the twelfth preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the twelfth embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0088] The ophthalmic lens 1200 defines a first refractive correction region A12, a second refractive correction region B12, a third refractive correction region C12, and a fourth refractive correction region D12. The first refractive correction region A12, the second refractive correction region B12, the third refractive correction region C12, and the fourth refractive correction region D12 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region D12. School District 40; As shown in Figure 12, in the twelfth embodiment, the ophthalmic lens 1200 is located in the refractive power distribution curve. The first refractive correction region A12 is located in the second outer ring optical region 30, the second refractive correction region B12 is located in the central optical region 10, the third refractive correction region C12 is located in the first outer ring optical region 20, and the fourth refractive correction region D12 is located in the third outer ring optical region 40. The first refractive correction region A12 is located in the refractive power distribution curve. Presenting a horizontal straight line, the second refractive correction region B12, the third refractive correction region C12, and the fourth refractive correction region D12 each exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of the three regions has multiple peaks. Specifically, the second refractive correction region B12 has multiple first peaks S1 and multiple first waves on the refractive power distribution curve. Valley T1, the third refractive correction region C12 has a plurality of second peaks S2 and a plurality of second valleys T2 in the refractive power distribution curve, and the fourth refractive correction region D12 has a plurality of third peaks S3 and a plurality of third valleys T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B12, the third refractive correction region C12 and the fourth refractive correction region D12 only need to have at least one peak in the refractive power distribution curve.

[0089] To ensure that the ophthalmic lens 1200 has a good vision correction effect, in the twelfth embodiment, the ophthalmic lens 1200 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPS1≦1.00D; (7) -2.00D≦PPS1-PPS2≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0090] Wherein, Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A12; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B12, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B12; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C12, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C12; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D12, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D12.

[0091] As can be seen from the refractive power distribution curve in Figure 12, in the twelfth embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.0 mm; and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 1.0 mm. The refractive power distribution curve shows that the center of the central optical region 10... The total distance from the point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A12 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B12 is PPS1=0.00D, and the valley refractive power of the second refractive correction area B12 is PPT1=-1.00D; the peak refractive power of the third refractive correction area C12 is PPS2=2.00D, and the valley refractive power of the third refractive correction area C12 is PPT2=1.00D; the peak refractive power of the fourth refractive correction area D12 is PPS3=5.00D, and the valley refractive power of the fourth refractive correction area D12 is PPT3=4.00D.

[0092] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 1200 in the twelfth embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.0mm; (4) Z3=1.0mm; (5) Z4=1.0mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=-1.00D; (8) PPS1-PPS2=-2.00D; (9) PPS2-PPS3=-3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0093] Thus, the twelfth embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 1200; furthermore, in the twelfth embodiment, the third refractive correction region C12 and the fourth refractive correction region D12 are respectively arranged on both sides of the first refractive correction region A12, the second refractive correction region B12, the third refractive correction region C12 and the fourth refractive correction region D12 respectively increase the refractive power relative to the first refractive correction region A12, and the refractive power of the third refractive correction region C12 and the fourth refractive correction region D12 is higher than the refractive power of the second refractive correction region B12, wherein the second refractive... The difference between the peak and trough refractive power in the correction area B12 (PPS1-PPT1), the difference between the peak and trough refractive power in the third correction area C12 (PPS2-PPT2), and the difference between the peak and trough refractive power in the fourth correction area D12 (PPS3-PPT3) are all the same. Thus, by using a multifocal refractive power design, the ophthalmic lens 1200 reduces the difference in refractive power between any two adjacent central optical areas 10, the first outer ring optical areas 20, the second outer ring optical areas 30, and the third outer ring optical areas 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 1200 clearer and more comfortable to wear.

[0094] Please refer to Figure 13, which shows an ophthalmic lens 1300 of the thirteenth preferred embodiment of the present invention, including a central optical region 10, a first outer ring optical region 20, a second outer ring optical region 30 and a third outer ring optical region 40. The shape of the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 in the thirteenth embodiment is basically the same as that described in the first embodiment above, meaning that the first outer ring optical region 20, the second outer ring optical region 30 and the third outer ring optical region 40 are sequentially surrounding the central optical region 10.

[0095] The ophthalmic lens 1300 defines a first refractive correction region A13, a second refractive correction region B13, a third refractive correction region C13, and a fourth refractive correction region D13. The first refractive correction region A13, the second refractive correction region B13, the third refractive correction region C13, and the fourth refractive correction region D13 are arbitrarily disposed in the central optical region 10, the first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region D13. School District 40; As shown in Figure 13, in the thirteenth embodiment, the ophthalmic lens 1300 is located in the refractive power distribution curve. The first refractive correction region A13 is located in the third outer ring optical region 40, the second refractive correction region B13 is located in the central optical region 10, the third refractive correction region C13 is located in the first outer ring optical region 20, and the fourth refractive correction region D13 is located in the second outer ring optical region 30. The first refractive correction region A13 is located in the refractive power distribution curve. Presenting a horizontal straight line, the second refractive correction region B13, the third refractive correction region C13, and the fourth refractive correction region D13 each exhibit a continuously changing wavy shape on the refractive power distribution curve, and each of the three regions has multiple peaks. Specifically, the second refractive correction region B13 has multiple first peaks S1 and multiple first waves on the refractive power distribution curve. Valley T1, the third refractive correction region C13 has a plurality of second peaks S2 and a plurality of second valleys T2 in the refractive power distribution curve, and the fourth refractive correction region D13 has a plurality of third peaks S3 and a plurality of third valleys T3 in the refractive power distribution curve. However, in other embodiments, the second refractive correction region B13, the third refractive correction region C13 and the fourth refractive correction region D13 only need to have at least one peak in the refractive power distribution curve.

[0096] To ​​ensure that the ophthalmic lens 1300 has a good vision correction effect, in the thirteenth embodiment, the ophthalmic lens 1300 meets the following conditions: (1) 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; (2) 0.25mm≦Z1≦1.4mm; (3) 0.25mm≦Z2≦1.4mm; (4) 0.25mm≦Z3≦1.4mm; (5) 0.25mm≦Z4≦1.4mm; (6) -1.00D≦PPSD≦1.00D; (7) -2.00D≦PPSD-PPS1≦2.00D; (8) -3.00D≦PPS1-PPS2≦3.00D; (9) -4.00D≦PPS2-PPS3≦4.00D (10) 1.00D≦│PPS1-PPT1│≦4.00D; (11) 1.00D≦│PPS2-PPT2│≦4.00D; (12) 1.00D≦│PPS3-PPT3│≦4.00D.

[0097] Wherein, Z1 is the distance from the center point to the boundary of the central optical region 10; Z2 is the distance from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20; Z3 is the distance from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30; Z4 is the distance from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40; PPSD is the refractive power of the first refractive correction region A13; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B13, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B13; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C13, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C13; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D13, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D13.

[0098] As can be seen from the refractive power distribution curve in Figure 13, in the thirteenth embodiment, the distance Z1 from the center point of the central optical region 10 to the boundary of the central optical region 10 is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 from the boundary of the central optical region 10 to the boundary of the first outer ring optical region 20 is 1.0 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to the boundary of the second outer ring optical region 30 is 1.0 mm; and the distance Z4 from the boundary of the second outer ring optical region 30 to the boundary of the third outer ring optical region 40 is 1.0 mm. The refractive power distribution curve shows that the center of the central optical region 10... The total distance from the point to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power of the first refractive correction area A13 is PPSD=-1.00D, the peak refractive power of the second refractive correction area B13 is PPS1=0.00D, and the valley refractive power of the second refractive correction area B13 is PPT1=-1.00D; the peak refractive power of the third refractive correction area C13 is PPS2=2.00D, and the valley refractive power of the third refractive correction area C13 is PPT2=1.00D; the peak refractive power of the fourth refractive correction area D13 is PPS3=5.00D, and the valley refractive power of the fourth refractive correction area D13 is PPT3=4.00D.

[0099] Therefore, based on the detailed values ​​of the above-mentioned refractive power distribution curve, the specific values ​​of the condition formula of the aforementioned ophthalmic lens 1300 in the thirteenth embodiment are as follows: (1) Z1+Z2+Z3+Z4=4.0mm; (2) Z1=1.0mm; (3) Z2=1.0mm; (4) Z3=1.0mm; (5) Z4=1.0mm; (6) PPSD=-1.00D; (7) PPSD-PPS1=-1.00D; (8) PPS1-PPS2=-2.00D; (9) PPS2-PPS3=-3.00D; (10) |PPS1-PPT1|=1.00D; (11) |PPS2-PPT2|=1.00D; (12) |PPS3-PPT3|=1.00D.

[0100] Thus, the thirteenth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 1300; in addition, in the thirteenth embodiment, the second refractive correction region B13, the third refractive correction region C13, and the fourth refractive correction region D13 of the ophthalmic lens 1300 respectively increase the refractive power relative to the first refractive correction region A13. The refractive power of the second refractive correction region B13, the third refractive correction region C13, and the fourth refractive correction region D13 is arranged by a progressively increasing power change of the central optical region 10, the first outer ring optical region 20, and the second outer ring optical region 30, and the fourth refractive correction region D13 is arranged in the first refractive correction region A13. On one side, the difference between the peak and trough refractive power of the second refractive correction region B13 (PPS1-PPT1), the difference between the peak and trough refractive power of the third refractive correction region C13 (PPS2-PPT2), and the difference between the peak and trough refractive power of the fourth refractive correction region D13 (PPS3-PPT3) are all the same. Thus, by using a multifocal refractive power design, the ophthalmic lens 1300 reduces the difference in refractive power between any two adjacent central optical zones 10, the first outer ring optical zone 20, the second outer ring optical zone 30, and the third outer ring optical zone 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 1300 clearer and more comfortable to wear.

[0101] In summary, the ophthalmic lenses of the first to thirteenth embodiments, through the design of multifocal refractive power, reduce the difference in refractive power between any two adjacent central optical zones 10, the first outer ring optical zone 20, the second outer ring optical zone 30, and the third outer ring optical zone 40, thereby reducing visual fatigue for the wearer and making the ophthalmic lenses clearer and more comfortable to wear. In addition, the ophthalmic lenses can arbitrarily allocate the first refractive correction area, the second refractive correction area, the third refractive correction area, and the fourth refractive correction area in the central optical zone, the first outer ring optical zone, the second outer ring optical zone, and the third outer ring optical zone according to vision correction needs, and adjust the refractive power of each refractive correction area separately, thereby increasing the diversity of refractive power arrangement of the ophthalmic lenses.

[0102] The above description is only a preferred embodiment of the present invention. Any equivalent changes made by applying the present invention specification and the claims should be included within the patent scope of the present invention. [Simplified Explanation of the Diagram]

[0103] The above and other features of the present invention will be described in detail with reference to the accompanying drawings. FIG1A is a schematic diagram of the structure of an ophthalmic lens according to a first preferred embodiment of the present invention. FIG1B is a graph showing the refractive power distribution of the ophthalmic lens according to a first preferred embodiment of the present invention. FIG2 is a graph showing the refractive power distribution of the ophthalmic lens according to a second preferred embodiment of the present invention. FIG3 is a graph showing the refractive power distribution of the ophthalmic lens according to a third preferred embodiment of the present invention. FIG4 is a graph showing the refractive power distribution of the ophthalmic lens according to a fourth preferred embodiment of the present invention. FIG5 is a graph showing the refractive power distribution of the ophthalmic lens according to a fifth preferred embodiment of the present invention. FIG6 is a graph showing the refractive power distribution of the ophthalmic lens according to a sixth preferred embodiment of the present invention. FIG7 is a graph showing the refractive power distribution of the ophthalmic lens according to a seventh preferred embodiment of the present invention. FIG8 is a graph showing the refractive power distribution of the ophthalmic lens according to an eighth preferred embodiment of the present invention. FIG9 is a graph showing the refractive power distribution of the ophthalmic lens according to a ninth preferred embodiment of the present invention. FIG10 is a graph showing the refractive power distribution of the ophthalmic lens according to a tenth preferred embodiment of the present invention. Figure 11 is a graph showing the refractive power distribution of an ophthalmic lens according to the eleventh preferred embodiment of the present invention. Figure 12 is a graph showing the refractive power distribution of an ophthalmic lens according to the twelfth preferred embodiment of the present invention. Figure 13 is a graph showing the refractive power distribution of an ophthalmic lens according to the thirteenth preferred embodiment of the present invention.

Claims

1. An ophthalmic lens comprising: a central optical region having a central point; a first outer ring optical region surrounding the central optical region; a second outer ring optical region surrounding the first outer ring optical region; and a third outer ring optical region surrounding the second outer ring optical region; The ophthalmic lens defines a first refractive correction region, a second refractive correction region, a third refractive correction region, and a fourth refractive correction region. These regions are arbitrarily located within the central optical region, the first outer ring optical region, the second outer ring optical region, and the third outer ring optical region. The ophthalmic lens has a refractive power distribution curve. The first refractive correction region appears as a horizontal straight line on the curve. The second, third, and fourth refractive correction regions each appear as wavy lines on the curve, and each region has at least one peak. The second refractive correction region has a plurality of first peaks and a plurality of first troughs on the curve. The ophthalmic lens meets the following ranges: 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; 1.00D≦│PPS1-PPT1│≦4.00D, where Z1 is the distance from the center point to the boundary of the central optical zone; Z2 is the distance from the boundary of the central optical zone to the boundary of the first outer ring optical zone; Z3 is the distance from the boundary of the first outer ring optical zone to the boundary of the second outer ring optical zone; Z4 is the distance from the boundary of the second outer ring optical zone to the boundary of the third outer ring optical zone; PPS1 is the peak refractive power of each of the first peaks in the second refractive correction region, and PPT1 is the valley refractive power of each of the first valleys in the second refractive correction region.

2. The ophthalmic lens as claimed in claim 1, wherein the first refractive correction region is located in one of the central optical region, the first outer ring optical region, the second outer ring optical region, and the third outer ring optical region, and the second refractive correction region or the third refractive correction region is arranged on one side of the first refractive correction region.

3. The ophthalmic lens as claimed in claim 1, wherein the first refractive correction region is located in the first outer ring optical region or the second outer ring optical region, and the second refractive correction region and the third refractive correction region are arranged on both sides of the first refractive correction region.

4. The ophthalmic lens as claimed in claim 1, wherein the first refractive correction region is located in one of the central optical region, the first outer ring optical region, the second outer ring optical region and the third outer ring optical region, and the fourth refractive correction region is arranged on one side of the first refractive correction region.

5. The ophthalmic lens as claimed in claim 1, wherein the first refractive correction region is located in the first outer ring optical region or the second outer ring optical region, the second refractive correction region or the third refractive correction region is arranged on one side of the first refractive correction region, and the fourth refractive correction region is arranged on the other side of the first refractive correction region.

6. An ophthalmic lens as described in any one of claims 1 to 5, wherein the ophthalmic lens satisfies the following range: -1.00D ≤ PPSD ≤ 1.00D, where PPSD is the refractive power of the first refractive correction zone.

7. An ophthalmic lens as described in any one of claims 1 to 5, wherein the ophthalmic lens satisfies the following range: -2.00D≦PPSD-PPS1≦2.00D, where PPSD is the refractive power of the first refractive correction region and PPS1 is the peak refractive power of the second refractive correction region.

8. An ophthalmic lens as described in any one of claims 1 to 5, wherein the ophthalmic lens satisfies the following range: -3.00D≦PPS1-PPS2≦3.00D, where PPS1 is the peak refractive power of the second refractive correction region and PPS2 is the peak refractive power of the third refractive correction region.

9. An ophthalmic lens as described in any one of claims 1 to 5, wherein the ophthalmic lens satisfies the following range: -4.00D≦PPS2-PPS3≦4.00D, where PPS2 is the peak refractive power of the third refractive correction region and PPS3 is the peak refractive power of the fourth refractive correction region.

10. An ophthalmic lens as described in any one of claims 1 to 5, wherein the third refractive correction region has a plurality of continuously varying second peaks and a plurality of second troughs in the refractive power distribution curve, and the ophthalmic lens satisfies the following range: 1.00D ≦│PPS2-PPT2│ ≦4.00D, wherein PPS2 is the peak refractive power of each of the second peaks in the third refractive correction region, and PPT2 is the trough refractive power of each of the second troughs in the third refractive correction region.

11. An ophthalmic lens as described in any one of claims 1 to 5, wherein the fourth refractive correction region has a plurality of continuously varying third peaks and a plurality of third troughs in the refractive power distribution curve, and the ophthalmic lens satisfies the following range: 1.00D ≦│PPS3-PPT3│ ≦4.00D, wherein PPS3 is the peak refractive power of each of the third peaks in the fourth refractive correction region, and PPT3 is the trough refractive power of each of the third troughs in the fourth refractive correction region.

12. The ophthalmic lens as claimed in claim 1, wherein the ophthalmic lens satisfies the following range: 0.25mm ≤ Z1 ≤ 1.4mm, where Z1 is the distance from the center point to the boundary of the central optical zone.

13. The ophthalmic lens as claimed in claim 1, wherein the ophthalmic lens satisfies the following range: 0.25mm ≤ Z2 ≤ 1.4mm, where Z2 is the distance between the first outer ring optical zone and the boundary of the central optical zone.

14. The ophthalmic lens as claimed in claim 1, wherein the ophthalmic lens satisfies the following range: 0.25mm ≤ Z3 ≤ 1.4mm, where Z3 is the distance between the second outer ring optical region and the boundary of the first outer ring optical region.

15. An ophthalmic lens comprising: a central optical region having a central point; a first outer ring optical region surrounding the central optical region; a second outer ring optical region surrounding the first outer ring optical region; and a third outer ring optical region surrounding the second outer ring optical region; The ophthalmic lens defines a first refractive correction region, a second refractive correction region, a third refractive correction region, and a fourth refractive correction region. The first, second, third, and fourth refractive correction regions are arbitrarily disposed in the central optical region, the first outer ring optical region, the second outer ring optical region, and the third outer ring optical region. The ophthalmic lens has a refractive power distribution curve. The first refractive correction region is a horizontal straight line on the refractive power distribution curve. The second, third, and fourth refractive correction regions are wavy on the refractive power distribution curve, and each of the second, third, and fourth refractive correction regions has at least one peak. The ophthalmic lens meets the following ranges: 3.5mm≦Z1+Z2+Z3+Z4≦5.0mm; -2.00D≦PPS1-PPS1≦2.00D; -3.00D≦PPS1-PPS2≦3.00D; -4.00D≦PPS2-PPS3≦4.00D; 0.25mm≦Z1≦1.4mm; 0.25mm≦Z2≦1.4mm; 0.25mm≦Z3≦1.4mm; 0.25mm≦Z4≦1.4mm, where Z1 is the distance from the center point to the boundary of the central optical zone. Spacing; Z2 is the distance from the boundary of the central optical area to the boundary of the first outer ring optical area; Z3 is the distance from the boundary of the first outer ring optical area to the boundary of the second outer ring optical area; Z4 is the distance from the boundary of the second outer ring optical area to the boundary of the third outer ring optical area; PPSD is the refractive power of the first refractive correction area; PPS1 is the peak refractive power of the second refractive correction area; PPS2 is the peak refractive power of the third refractive correction area; PPS3 is the peak refractive power of the fourth refractive correction area.

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