Ophthalmic lens

Abstract

An ophthalmic lens comprising a central optic zone, a first outer annular optic zone, a second outer annular optic zone, and a third outer annular optic zone; the first outer annular optic zone surrounds the central optic zone; the second outer annular optic zone surrounds the first outer annular optic zone; the third outer annular optic zone surrounds the second outer annular optic zone; 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 are optionally disposed in the central optic zone, the first outer annular optic zone, the second outer annular optic zone, and the third outer annular optic zone, increasing the refractive power variety arrangement of the ophthalmic lens.

Description

Technical Field

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

[0002] With the widespread use of 3C products, the incidence of myopia among children and adolescents is showing a trend of younger ages, leading to a significant increase in the proportion of patients with high myopia. Among these, 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 and instead 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. However, 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 discomfort to the wearer, especially during long-term use, which is difficult to tolerate and can reduce the effect of vision control. Summary of the Invention

[0004] In view of this, 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 present invention provides an ophthalmic lens comprising 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, and the first refractive correction region is horizontally aligned with the refractive power distribution curve. The second, third, and fourth refractive correction regions are respectively wavy on the refractive power distribution curve, and each of the third, fourth, and third refractive correction regions 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 advantage of this invention is that the ophthalmic lens, through its multifocal refractive power design, reduces visual fatigue for the wearer, resulting in clearer and more comfortable wear. Furthermore, 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 within 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 vision correction needs. The refractive power of each refractive correction area is adjusted, thereby increasing the diversity of refractive power arrangements of the ophthalmic lens. Attached Figure Description

[0007] The above and other features of the present invention will be described in detail with reference to the accompanying drawings.

[0008] Figure 1A This is a schematic diagram of the structure of an ophthalmic lens according to a first preferred embodiment of the present invention.

[0009] Figure 1BThis is a graph showing the refractive power distribution of an ophthalmic lens according to a first preferred embodiment of the present invention.

[0010] Figure 2 This is a graph showing the refractive power distribution of an ophthalmic lens according to a second preferred embodiment of the present invention.

[0011] Figure 3 This is a graph showing the refractive power distribution of an ophthalmic lens according to a third preferred embodiment of the present invention.

[0012] Figure 4 This is a graph showing the refractive power distribution of an ophthalmic lens according to the fourth preferred embodiment of the present invention.

[0013] Figure 5 This is a graph showing the refractive power distribution of an ophthalmic lens according to the fifth preferred embodiment of the present invention.

[0014] Figure 6 This is a graph showing the refractive power distribution of an ophthalmic lens according to the sixth preferred embodiment of the present invention.

[0015] Figure 7 This is a graph showing the refractive power distribution of an ophthalmic lens according to the seventh preferred embodiment of the present invention.

[0016] Figure 8 This is a graph showing the refractive power distribution of an ophthalmic lens according to the eighth preferred embodiment of the present invention.

[0017] Figure 9 This is a graph showing the refractive power distribution of an ophthalmic lens according to the ninth preferred embodiment of the present invention.

[0018] Figure 10 This is a graph showing the refractive power distribution of an ophthalmic lens according to the tenth preferred embodiment of the present invention.

[0019] Figure 11 This is a graph showing the refractive power distribution of an ophthalmic lens according to the eleventh preferred embodiment of the present invention.

[0020] Figure 12 This is a graph showing the refractive power distribution of an ophthalmic lens according to the twelfth preferred embodiment of the present invention.

[0021] Figure 13 This is a graph showing the refractive power distribution of an ophthalmic lens according to the thirteenth preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300: Ophthalmic lenses 10: Central optical zone

[0024] 20: First outer ring optical zone

[0025] 30: Second outer ring optical zone

[0026] 40: Third Outer Ring Optical Zone

[0027] O: Center point

[0028] S1: First peak

[0029] T1: First trough

[0030] S2: Second peak

[0031] T2: Second trough

[0032] S3: Third Peak

[0033] T3: The Third Valley

[0034] A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13: First refractive correction zone

[0035] B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11, B12, B13: Second refractive correction zone

[0036] C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13: Third refractive correction zone

[0037] D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13: Fourth refractive correction zone Detailed Implementation

[0038] To more clearly illustrate the present invention, preferred embodiments are described in detail below with reference to the accompanying drawings. Please refer to... Figure 1A , Figure 1B The ophthalmic lens 100 of the first preferred embodiment of the present invention 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. In the first embodiment, the ophthalmic lens 100 is described using a contact lens as an example, but is not limited thereto.

[0039] 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, and 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 arranged concentrically with respect to the center point O.

[0040] 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 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 vision correction requirements. The first outer ring optical region 20, the second outer ring optical region 30, and the third outer ring optical region 40 can be arbitrarily arranged with 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, without limiting 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 to be arranged sequentially 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.

[0041] In a preferred embodiment, the first refractive correction region A1 is located at 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 at 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 at 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. In one preferred embodiment, 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, in the ophthalmic lens 100, 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 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.

[0042] Table 1 shows the configuration of each refractive correction zone in each optical zone of ophthalmic lenses.

[0043]

[0044]

[0045] like Figure 1B As shown 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 zone 10, the second refractive correction region B1 is located in the first outer ring optical zone 20, the third refractive correction region C1 is located in the second outer ring optical zone 30, and the fourth refractive correction region D1 is located in the third outer ring optical zone 40. The first refractive correction region A1 is a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B1, the third refractive correction region C1, and the fourth refractive correction region D1 are each plotted as a continuously changing wave shape on the refractive power distribution curve. Furthermore, the second refractive correction region B1... The third refractive correction region C1 and the fourth refractive correction region D1 each have multiple peaks. Specifically, the second refractive correction region B1 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C1 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D1 has multiple third peaks S3 and multiple 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.

[0046] To ensure that the ophthalmic lens 100 has a good visual correction effect, in the first embodiment, the ophthalmic lens 100 meets the following condition:

[0047] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0048] (2) 0.25mm≤Z1≤1.4mm;

[0049] (3) 0.25mm≤Z2≤1.4mm;

[0050] (4) 0.25mm≤Z3≤1.4mm;

[0051] (5) 0.25mm≤Z4≤1.4mm;

[0052] (6) -1.00D≤PPSD≤1.00D;

[0053] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0054] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0055] (9) -4.00D≤PPS2-PPS3≤4.00D

[0056] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0057] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0058] (12) 1.00D≤│PPS3-PPT3│≤4.00D。

[0059] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary, 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 first outer ring optical region 20 to its boundary, 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 its boundary. 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 each of the first peaks in the second refractive correction region B1. S1 is the peak refractive power value, PPT1 is the trough refractive power value of each of the first troughs T1 in the second refractive correction region B1, wherein the peak refractive power value PPS1 of the second refractive correction region B1 is based on the highest first peak S1, and the trough refractive power value PPT1 of the second refractive correction region B1 is based on the lowest first trough T1; PPS2 is the peak refractive power value of each of the second peaks S2 in the third refractive correction region C1, and PPT2 is the trough refractive power value of each of the second troughs T2 in the third refractive correction region C1, wherein the third refractive correction region C1... The peak refractive power PPS2 is based on the highest second peak S2, and the valley refractive power PPT2 of the third refractive correction region C1 is based on the lowest second valley T2; PPS3 is the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D1, and PPT3 is the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D1, wherein the peak refractive power PPS3 of the fourth refractive correction region D1 is based on the highest third peak S3, and the valley refractive power PPT3 of the fourth refractive correction region D1 is based on the lowest third valley T3.

[0060] Depend on Figure 1BFrom the refractive power distribution curve, it can be seen that in the first embodiment, the distance Z1 from the center point of the central optical region 10 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. The center point of the central optical region 10 in the refractive power distribution curve... The total length distance to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.5mm; the refractive power PPSD of the first refractive correction area A1 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B1 is -1.00D, and the valley refractive power PPT1 of the second refractive correction area B1 is -2.00D; the peak refractive power PPS2 of the third refractive correction area C1 is -1.00D, and the valley refractive power PPT2 of the third refractive correction area C1 is -3.00D; the peak refractive power PPS3 of the fourth refractive correction area D1 is -1.00D, and the valley refractive power PPT3 of the fourth refractive correction area D1 is -4.00D.

[0061] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 100 in the first embodiment are as follows:

[0062] (1) Z1+Z2+Z3+Z4=4.5mm;

[0063] (2) Z1 = 0.8 mm;

[0064] (3) Z2 = 1.4 mm;

[0065] (4) Z3 = 1.2 mm;

[0066] (5) Z4 = 1.1 mm;

[0067] (6) PPSD = -1.00D;

[0068] (7) PPSD-PPS1=0;

[0069] (8) PPS1-PPS2=0;

[0070] (9) PPS2-PPS3=0;

[0071] (10) │PPS1-PPT1│=1.00D;

[0072] (11) │PPS2-PPT2│=2.00D;

[0073] (12) │PPS3-PPT3│=3.00D.

[0074] Thus, the first embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 100; furthermore, in the ophthalmic lens 100 of 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 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|, and the first… 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 30 are all equal without any difference, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 100 clearer and more comfortable to wear.

[0075] Please refer to Figure 2 The ophthalmic lens 200 of the second preferred embodiment of the present invention 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 morphology 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 substantially 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.

[0076] 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 within 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. Figure 2As shown in the second embodiment, the ophthalmic lens 200 is plotted on a refractive power distribution curve. The first refractive correction region A2 is located in the central optical zone 10, the second refractive correction region B2 is located in the first outer ring optical zone 20, the third refractive correction region C2 is located in the second outer ring optical zone 30, and the fourth refractive correction region D2 is located in the third outer ring optical zone 40. The first refractive correction region A2 is plotted as a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B2, the third refractive correction region C2, and the fourth refractive correction region D2 are plotted as continuously changing wavy lines on the refractive power distribution curve. Furthermore, the second refractive correction region B2... The third refractive correction region C2 and the fourth refractive correction region D2 each have multiple peaks. Specifically, the second refractive correction region B2 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C2 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D2 has multiple third peaks S3 and multiple 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 each only need to have at least one peak in the refractive power distribution curve.

[0077] To ensure that the ophthalmic lens 200 has a good vision correction effect, in the second embodiment, the ophthalmic lens 200 meets the following condition:

[0078] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0079] (2) 0.25mm≤Z1≤1.4mm;

[0080] (3) 0.25mm≤Z2≤1.4mm;

[0081] (4) 0.25mm≤Z3≤1.4mm;

[0082] (5) 0.25mm≤Z4≤1.4mm;

[0083] (6) -1.00D≤PPSD≤1.00D;

[0084] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0085] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0086] (9) -4.00D≤PPS2-PPS3≤4.00D

[0087] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0088] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0089] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0090] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A2; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B2, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B2; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C2, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C2; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D2, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D2.

[0091] Depend on Figure 2From the refractive power distribution curve, it can be seen that in the second embodiment, the distance Z1 from the center point of the central optical region 10 to its boundary is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 to its boundary is 1.4 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to its boundary is 1.2 mm; and the distance Z4 from the boundary of the third outer ring optical region 40 to its boundary is 0.9 mm. The refractive power distribution curve shows that the center point of the central optical region 10... The total length distance to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.5mm; the refractive power PPSD of the first refractive correction area A2 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B2 is -1.00D, and the valley refractive power PPT1 of the second refractive correction area B2 is -2.00D; the peak refractive power PPS2 of the third refractive correction area C2 is -1.00D, and the valley refractive power PPT2 of the third refractive correction area C2 is -2.00D; the peak refractive power PPS3 of the fourth refractive correction area D2 is -1.00D, and the valley refractive power PPT3 of the fourth refractive correction area D2 is -2.00D.

[0092] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 200 in the second embodiment are as follows:

[0093] (1) Z1+Z2+Z3+Z4=4.5mm;

[0094] (2) Z1 = 1.0 mm;

[0095] (3) Z2 = 1.4 mm;

[0096] (4) Z3 = 1.2 mm;

[0097] (5) Z4 = 0.9 mm;

[0098] (6) PPSD = -1.00D;

[0099] (7) PPSD-PPS1=0;

[0100] (8) PPS1-PPS2=0;

[0101] (9) PPS2-PPS3=0;

[0102] (10) │PPS1-PPT1│=1.00D;

[0103] (11) │PPS2-PPT2│=1.00D;

[0104] (12) │PPS3-PPT3│=1.00D.

[0105] Thus, the second embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 200; furthermore, in the ophthalmic lens 200 of 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 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 difference in refractive power |PPS2-PPT2| and the difference in refractive power peak and valley values ​​|PPS3-PPT3| of the fourth refractive correction area D2 are all the same; thus, the ophthalmic lens 200, through its multifocal refractive power design, ensures that the refractive powers of the central optical area 10, the first outer ring optical area 20, the second outer ring optical area 30, and the third outer ring optical area 30 are all equal and without any difference, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 200 clearer and more comfortable to wear.

[0106] Please refer to Figure 3 The ophthalmic lens 300 of the third preferred embodiment of the present invention 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 third embodiment is substantially 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.

[0107] 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 within 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. Figure 3As shown in the third embodiment, the ophthalmic lens 300 is plotted on a refractive power distribution curve. The first refractive correction region A3 is located in the central optical zone 10, the second refractive correction region B3 is located in the first outer ring optical zone 20, the third refractive correction region C3 is located in the second outer ring optical zone 30, and the fourth refractive correction region D3 is located in the third outer ring optical zone 40. The first refractive correction region A3 is plotted as a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B3, the third refractive correction region C3, and the fourth refractive correction region D3 are plotted as continuously changing wavy lines on the refractive power distribution curve. Furthermore, the second refractive correction region B3... The third refractive correction region C3 and the fourth refractive correction region D3 each have multiple peaks. Specifically, the second refractive correction region B3 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C3 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D3 has multiple third peaks S3 and multiple 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 each only need to have at least one peak in the refractive power distribution curve.

[0108] To ensure that the ophthalmic lens 300 has a good vision correction effect, in the third embodiment, the ophthalmic lens 300 meets the following conditional expression:

[0109] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0110] (2) 0.25mm≤Z1≤1.4mm;

[0111] (3) 0.25mm≤Z2≤1.4mm;

[0112] (4) 0.25mm≤Z3≤1.4mm;

[0113] (5) 0.25mm≤Z4≤1.4mm;

[0114] (6) -1.00D≤PPSD≤1.00D;

[0115] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0116] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0117] (9) -4.00D≤PPS2-PPS3≤4.00D

[0118] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0119] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0120] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0121] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A3; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B3, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B3; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C3, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C3; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D3, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D3.

[0122] Depend on Figure 3From the refractive power distribution curve, it can be seen that 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 third outer ring optical region 40 is 1.0 mm. The center point of the central optical region 10 in the refractive power distribution curve... The total length distance to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power PPSD of the first refractive correction area A3 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B3 is -2.00D, and the valley refractive power PPT1 of the second refractive correction area B3 is -3.00D; the peak refractive power PPS2 of the third refractive correction area C3 is -4.00D, and the valley refractive power PPT2 of the third refractive correction area C3 is -5.00D; the peak refractive power PPS3 of the fourth refractive correction area D3 is -7.00D, and the valley refractive power PPT3 of the fourth refractive correction area D3 is -8.00D.

[0123] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 300 in the third embodiment are as follows:

[0124] (1) Z1+Z2+Z3+Z4=4.0mm;

[0125] (2) Z1 = 1.0 mm;

[0126] (3) Z2 = 1.0 mm;

[0127] (4) Z3 = 1.0 mm;

[0128] (5) Z4 = 1.0 mm;

[0129] (6) PPSD = -1.00D;

[0130] (7) PPSD-PPS1 = 1.00D;

[0131] (8) PPS1-PPS2=2.00D;

[0132] (9) PPS2-PPS3=3.00D;

[0133] (10) │PPS1-PPT1│=1.00D;

[0134] (11) │PPS2-PPT2│=1.00D;

[0135] (12) │PPS3-PPT3│=1.00D.

[0136] Thus, the third embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 300; furthermore, in the ophthalmic lens 300 of the third embodiment, 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 is arranged by a progressively decreasing power change from 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-P The peak and trough refractive power difference between PT1, the third refractive correction region C3 (PPS2-PPT2), and the peak and trough refractive power difference between the fourth refractive correction region D3 (PPS3-PPT3) are all the same. Thus, the ophthalmic lens 300, through its multifocal refractive power design, reduces the refractive power difference 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 30, providing an effect of reducing visual fatigue for the wearer, making the ophthalmic lens 300 clearer and more comfortable to wear.

[0137] Please refer to Figure 4 The ophthalmic lens 400 of the fourth preferred embodiment of the present invention 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 fourth embodiment is substantially 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.

[0138] 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 within 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. Figure 4As shown in the fourth embodiment, the ophthalmic lens 400 is plotted on a refractive power distribution curve. The first refractive correction region A4 is located in the central optical zone 10, the second refractive correction region B4 is located in the first outer ring optical zone 20, the third refractive correction region C4 is located in the second outer ring optical zone 30, and the fourth refractive correction region D4 is located in the third outer ring optical zone 40. The first refractive correction region A4 appears as a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B4, the third refractive correction region C4, and the fourth refractive correction region D4 each exhibit continuously changing wavy shapes on the refractive power distribution curve. Furthermore, the second refractive correction region B4… The third refractive correction region C4 and the fourth refractive correction region D4 each have multiple peaks. Specifically, the second refractive correction region B4 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C4 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D4 has multiple third peaks S3 and multiple 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 each only need at least one peak in the refractive power distribution curve.

[0139] To ensure that the ophthalmic lens 400 has a good vision correction effect, in the fourth embodiment, the ophthalmic lens 400 meets the following condition:

[0140] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0141] (2) 0.25mm≤Z1≤1.4mm;

[0142] (3) 0.25mm≤Z2≤1.4mm;

[0143] (4) 0.25mm≤Z3≤1.4mm;

[0144] (5) 0.25mm≤Z4≤1.4mm;

[0145] (6) -1.00D≤PPSD≤1.00D;

[0146] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0147] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0148] (9) -4.00D≤PPS2-PPS3≤4.00D

[0149] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0150] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0151] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0152] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A4; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B4, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B4; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C4, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C4; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D4, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D4.

[0153] Depend on Figure 4From the refractive power distribution curve, it can be seen that 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 third outer ring optical region 40 to the boundary of the third outer ring optical region 40 is 1.0 mm. The center point of the central optical region 10 in the refractive power distribution curve... The total length distance to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power PPSD of the first refractive correction area A4 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B4 is -2.00D, and the valley refractive power PPT1 of the second refractive correction area B4 is -3.00D; the peak refractive power PPS2 of the third refractive correction area C4 is -4.00D, and the valley refractive power PPT2 of the third refractive correction area C4 is -5.00D; the peak refractive power PPS3 of the fourth refractive correction area D4 is -1.00D, and the valley refractive power PPT3 of the fourth refractive correction area D4 is -2.00D.

[0154] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 400 in the fourth embodiment are as follows:

[0155] (1) Z1+Z2+Z3+Z4=4.0mm;

[0156] (2) Z1 = 1.0 mm;

[0157] (3) Z2 = 1.0 mm;

[0158] (4) Z3 = 1.0 mm;

[0159] (5) Z4 = 1.0 mm;

[0160] (6) PPSD = -1.00D;

[0161] (7) PPSD-PPS1 = 1.00D;

[0162] (8) PPS1-PPS2=2.00D;

[0163] (9) PPS2-PPS3=-3.00D;

[0164] (10) │PPS1-PPT1│=1.00D;

[0165] (11) │PPS2-PPT2│=1.00D;

[0166] (12) │PPS3-PPT3│=1.00D.

[0167] Thus, the fourth embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 400; furthermore, in the ophthalmic lens 400 of 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 is arranged by a progressively decreasing power change from the central optical region 10, the first outer ring optical region 20, and the second outer ring optical region 30, while the fourth refractive correction region D4 increases the refractive power relative to the third refractive correction region C4, and the refractive power of the fourth refractive correction region D4 is the same as that of the first refractive correction region A4, wherein the second refractive correction region 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, the ophthalmic lens 400, through its multifocal refractive power design, 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 30, providing an effect of reducing visual fatigue for the wearer, making the ophthalmic lens 400 clearer and more comfortable to wear.

[0168] Please refer to Figure 5 The ophthalmic lens 500 of the fifth preferred embodiment of the present invention 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 fifth embodiment is substantially 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.

[0169] 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 within 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. Figure 5 As shown in the fifth embodiment, the ophthalmic lens 500 is plotted on a refractive power distribution curve. The first refractive correction region A5 is located in the central optical zone 10, the second refractive correction region B5 is located in the first outer ring optical zone 20, the third refractive correction region C5 is located in the second outer ring optical zone 30, and the fourth refractive correction region D5 is located in the third outer ring optical zone 40. The first refractive correction region A5 is a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B5, the third refractive correction region C5, and the fourth refractive correction region D5 are each plotted as continuously changing wavy lines on the refractive power distribution curve. Furthermore, the second refractive correction region B5... The third refractive correction region C5 and the fourth refractive correction region D5 each have multiple peaks. Specifically, the second refractive correction region B5 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C5 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D5 has multiple third peaks S3 and multiple 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 each only need to have at least one peak in the refractive power distribution curve.

[0170] To ensure that the ophthalmic lens 500 has a good vision correction effect, in the fifth embodiment, the ophthalmic lens 500 meets the following condition:

[0171] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0172] (2) 0.25mm≤Z1≤1.4mm;

[0173] (3) 0.25mm≤Z2≤1.4mm;

[0174] (4) 0.25mm≤Z3≤1.4mm;

[0175] (5) 0.25mm≤Z4≤1.4mm;

[0176] (6) -1.00D≤PPSD≤1.00D;

[0177] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0178] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0179] (9) -4.00D≤PPS2-PPS3≤4.00D

[0180] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0181] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0182] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0183] 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 A5; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B5, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B5; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C5, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C5; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D5, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D5.

[0184] Depend on Figure 5From the refractive power distribution curve, it can be seen that in the fifth 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 third outer ring optical region 40 is 1.0 mm. The center point of the central optical region 10 in the refractive power distribution curve... The total length distance to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power PPSD of the first refractive correction area A5 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B5 is -2.00D, and the valley refractive power PPT1 of the second refractive correction area B5 is -3.00D; the peak refractive power PPS2 of the third refractive correction area C5 is 0.00D, and the valley refractive power PPT2 of the third refractive correction area C5 is -1.00D; the peak refractive power PPS3 of the fourth refractive correction area D5 is -3.00D, and the valley refractive power PPT3 of the fourth refractive correction area D5 is -4.00D.

[0185] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 500 in the fifth embodiment are as follows:

[0186] (1) Z1+Z2+Z3+Z4=4.0mm;

[0187] (2) Z1 = 1.0 mm;

[0188] (3) Z2 = 1.0 mm;

[0189] (4) Z3 = 1.0 mm;

[0190] (5) Z4 = 1.0 mm;

[0191] (6) PPSD = -1.00D;

[0192] (7) PPSD-PPS1 = 1.00D;

[0193] (8) PPS1-PPS2=-2.00D;

[0194] (9) PPS2-PPS3=3.00D;

[0195] (10) │PPS1-PPT1│=1.00D;

[0196] (11) │PPS2-PPT2│=1.00D;

[0197] (12) │PPS3-PPT3│=1.00D.

[0198] Thus, the fifth embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 500; furthermore, in the ophthalmic lens 500 of the fifth embodiment, 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, the ophthalmic lens 500, through its multifocal refractive power design, 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 30, providing an effect of reducing visual fatigue for the wearer, making the ophthalmic lens 500 clearer and more comfortable to wear.

[0199] Please refer to Figure 6 The ophthalmic lens 600 of the sixth preferred embodiment of the present invention 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 morphology 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 substantially 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.

[0200] 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 within 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. Figure 6 As shown in the sixth embodiment, the ophthalmic lens 600 is plotted on a refractive power distribution curve. The first refractive correction region A6 is located in the central optical zone 10, the second refractive correction region B6 is located in the first outer ring optical zone 20, the third refractive correction region C6 is located in the second outer ring optical zone 30, and the fourth refractive correction region D6 is located in the third outer ring optical zone 40. The first refractive correction region A6 is plotted as a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B6, the third refractive correction region C6, and the fourth refractive correction region D6 are plotted as continuously changing wavy lines on the refractive power distribution curve. Furthermore, the second refractive correction region B6... The third refractive correction region C6 and the fourth refractive correction region D6 each have multiple peaks. Specifically, the second refractive correction region B6 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C6 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D6 has multiple third peaks S3 and multiple 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 each only need at least one peak in the refractive power distribution curve.

[0201] To ensure that the ophthalmic lens 600 has a good vision correction effect, in the sixth embodiment, the ophthalmic lens 600 meets the following conditional expression:

[0202] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0203] (2) 0.25mm≤Z1≤1.4mm;

[0204] (3) 0.25mm≤Z2≤1.4mm;

[0205] (4) 0.25mm≤Z3≤1.4mm;

[0206] (5) 0.25mm≤Z4≤1.4mm;

[0207] (6) -1.00D≤PPSD≤1.00D;

[0208] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0209] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0210] (9) -4.00D≤PPS2-PPS3≤4.00D

[0211] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0212] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0213] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0214] 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 A6; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B6, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B6; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C6, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C6; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D6, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D6.

[0215] Depend on Figure 6From the refractive power distribution curve, it can be seen that 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 third outer ring optical region 40 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 PPSD of the first refractive correction area A6 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B6 is -2.00D, and the valley refractive power PPT1 of the second refractive correction area B6 is -3.00D; the peak refractive power PPS2 of the third refractive correction area C6 is 0.00D, and the valley refractive power PPT2 of the third refractive correction area C6 is -1.00D; the peak refractive power PPS3 of the fourth refractive correction area D6 is 3.00D, and the valley refractive power PPT3 of the fourth refractive correction area D6 is 2.00D.

[0216] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 600 in the sixth embodiment are as follows:

[0217] (1) Z1+Z2+Z3+Z4=4.0mm;

[0218] (2) Z1 = 1.0 mm;

[0219] (3) Z2 = 1.0 mm;

[0220] (4) Z3 = 1.0 mm;

[0221] (5) Z4 = 1.0 mm;

[0222] (6) PPSD = -1.00D;

[0223] (7) PPSD-PPS1 = 1.00D;

[0224] (8) PPS1-PPS2=-2.00D;

[0225] (9) PPS2-PPS3=-3.00D;

[0226] (10) │PPS1-PPT1│=1.00D;

[0227] (11) │PPS2-PPT2│=1.00D;

[0228] (12) │PPS3-PPT3│=1.00D.

[0229] Thus, the sixth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 600; furthermore, in the ophthalmic lens 600 of the sixth embodiment, the second refractive correction region B6 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 in a progressively increasing order 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 difference between the peak and trough refractive power of the second refractive correction region B6 (PPS1-PPT1), the difference between the peak and trough refractive power of the third refractive correction region C6 (PPS2-PPT2), and the difference between the peak and trough refractive power of the fourth refractive correction region D6 (PPS3-PPT3) are all the same. Thus, the ophthalmic lens 600, through its multifocal refractive power design, 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 30, providing a reduction in visual fatigue for the wearer, resulting in a clearer and more comfortable wearing experience.

[0230] Please refer to Figure 7 The ophthalmic lens 700 of the seventh preferred embodiment of the present invention 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 seventh embodiment is substantially 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.

[0231] 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 within 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. Figure 7 As shown in the seventh embodiment, the ophthalmic lens 700 is plotted on a refractive power distribution curve. The first refractive correction region A7 is located in the central optical zone 10, the second refractive correction region B7 is located in the first outer ring optical zone 20, the third refractive correction region C7 is located in the second outer ring optical zone 30, and the fourth refractive correction region D7 is located in the third outer ring optical zone 40. The first refractive correction region A7 is plotted as a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B7, the third refractive correction region C7, and the fourth refractive correction region D7 are plotted as continuously changing wavy lines on the refractive power distribution curve. Furthermore, the second refractive correction region B7... The third refractive correction region C7 and the fourth refractive correction region D7 each have multiple peaks. Specifically, the second refractive correction region B7 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C7 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D7 has multiple third peaks S3 and multiple 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 each only need to have at least one peak in the refractive power distribution curve.

[0232] To ensure that the ophthalmic lens 700 has a good vision correction effect, in the seventh embodiment, the ophthalmic lens 700 meets the following conditional expression:

[0233] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0234] (2) 0.25mm≤Z1≤1.4mm;

[0235] (3) 0.25mm≤Z2≤1.4mm;

[0236] (4) 0.25mm≤Z3≤1.4mm;

[0237] (5) 0.25mm≤Z4≤1.4mm;

[0238] (6) -1.00D≤PPSD≤1.00D;

[0239] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0240] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0241] (9) -4.00D≤PPS2-PPS3≤4.00D

[0242] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0243] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0244] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0245] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A7; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B7, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B7; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C7, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C7; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D7, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D7.

[0246] Depend on Figure 7From the refractive power distribution curve, it can be seen that in the seventh 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 third outer ring optical region 40 is 1.0 mm. The center point of the central optical region 10 in the refractive power distribution curve... The total length distance to the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power PPSD of the first refractive correction area A7 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B7 is 0.00D, and the valley refractive power PPT1 of the second refractive correction area B7 is -1.00D; the peak refractive power PPS2 of the third refractive correction area C7 is -2.00D, and the valley refractive power PPT2 of the third refractive correction area C7 is -3.00D; the peak refractive power PPS3 of the fourth refractive correction area D7 is -5.00D, and the valley refractive power PPT3 of the fourth refractive correction area D7 is -6.00D.

[0247] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 700 in the seventh embodiment are as follows:

[0248] (1) Z1+Z2+Z3+Z4=4.0mm;

[0249] (2) Z1 = 1.0 mm;

[0250] (3) Z2 = 1.0 mm;

[0251] (4) Z3 = 1.0 mm;

[0252] (5) Z4 = 1.0 mm;

[0253] (6) PPSD = -1.00D;

[0254] (7) PPSD-PPS1 = -1.00D;

[0255] (8) PPS1-PPS2=2.00D;

[0256] (9) PPS2-PPS3=3.00D;

[0257] (10) │PPS1-PPT1│=1.00D;

[0258] (11) │PPS2-PPT2│=1.00D;

[0259] (12) │PPS3-PPT3│=1.00D.

[0260] Thus, the seventh embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 700; furthermore, in the ophthalmic lens 700 of the seventh embodiment, the second refractive correction region B7 increases the refractive power relative to the first refractive correction region A7, and the refractive powers of the second refractive correction region B7, the third refractive correction region C7, and the fourth refractive correction region D7 are arranged in a progressively decreasing order 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 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, the ophthalmic lens 700, through its multifocal refractive power design, 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 30, providing an effect of reducing visual fatigue for the wearer, making the ophthalmic lens 700 clearer and more comfortable to wear.

[0261] Please refer to Figure 8 The ophthalmic lens 800 of the eighth preferred embodiment of the present invention 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 morphology 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 substantially 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.

[0262] 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 within 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. Figure 8 As shown in the eighth embodiment, the ophthalmic lens 800 is plotted on a refractive power distribution curve. The first refractive correction region A8 is located in the central optical zone 10, the second refractive correction region B8 is located in the first outer ring optical zone 20, the third refractive correction region C8 is located in the second outer ring optical zone 30, and the fourth refractive correction region D8 is located in the third outer ring optical zone 40. The first refractive correction region A8 is a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B8, the third refractive correction region C8, and the fourth refractive correction region D8 are each plotted as continuously changing wavy lines on the refractive power distribution curve. Furthermore, the second refractive correction region B8... The third refractive correction region C8 and the fourth refractive correction region D8 each have multiple peaks. Specifically, the second refractive correction region B8 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C8 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D8 has multiple third peaks S3 and multiple 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 each only need at least one peak in the refractive power distribution curve.

[0263] To ensure that the ophthalmic lens 800 has a good vision correction effect, in the eighth embodiment, the ophthalmic lens 800 meets the following conditional expression:

[0264] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0265] (2) 0.25mm≤Z1≤1.4mm;

[0266] (3) 0.25mm≤Z2≤1.4mm;

[0267] (4) 0.25mm≤Z3≤1.4mm;

[0268] (5) 0.25mm≤Z4≤1.4mm;

[0269] (6) -1.00D≤PPSD≤1.00D;

[0270] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0271] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0272] (9) -4.00D≤PPS2-PPS3≤4.00D

[0273] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0274] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0275] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0276] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A8; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B8, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B8; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C8, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C8; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D8, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D8.

[0277] Depend on Figure 8From the refractive power distribution curve, it can be seen that 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 third outer ring optical region 40 to the boundary of the third outer ring optical region 30 is 0.8 mm. The center of the central optical region 10 in the refractive power distribution curve... 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 PPSD of the first refractive correction area A8 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B8 is 0.00D, and the valley refractive power PPT1 of the second refractive correction area B8 is -1.00D; the peak refractive power PPS2 of the third refractive correction area C8 is -2.00D, and the valley refractive power PPT2 of the third refractive correction area C8 is -3.00D; the peak refractive power PPS3 of the fourth refractive correction area D8 is 1.00D, and the valley refractive power PPT3 of the fourth refractive correction area D8 is 0.00D.

[0278] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 800 in the eighth embodiment are as follows:

[0279] (1) Z1+Z2+Z3+Z4=4.0mm;

[0280] (2) Z1 = 1.0 mm;

[0281] (3) Z2 = 1.0 mm;

[0282] (4) Z3 = 1.2 mm;

[0283] (5) Z4 = 0.8 mm;

[0284] (6) PPSD = -1.00D;

[0285] (7) PPSD-PPS1 = -1.00D;

[0286] (8) PPS1-PPS2=2.00D;

[0287] (9) PPS2-PPS3=3.00D;

[0288] (10) │PPS1-PPT1│=1.00D;

[0289] (11) │PPS2-PPT2│=1.00D;

[0290] (12) │PPS3-PPT3│=1.00D.

[0291] Thus, the eighth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 800; furthermore, 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 second The difference between the peak and trough refractive power in 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, the ophthalmic lens 800, through its multifocal refractive power design, 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 30, providing a reduction in visual fatigue for the wearer, resulting in a clearer and more comfortable wearing experience.

[0292] Please refer to Figure 9 The ophthalmic lens 900 of the ninth preferred embodiment of the present invention 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 ninth embodiment is substantially 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.

[0293] 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 within 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. Figure 9 As shown in the ninth embodiment, the ophthalmic lens 900 is plotted on a refractive power distribution curve. The first refractive correction region A9 is located in the central optical zone 10, the second refractive correction region B9 is located in the first outer ring optical zone 20, the third refractive correction region C9 is located in the second outer ring optical zone 30, and the fourth refractive correction region D9 is located in the third outer ring optical zone 40. The first refractive correction region A9 appears as a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B9, the third refractive correction region C9, and the fourth refractive correction region D9 each exhibit continuously changing wavy shapes on the refractive power distribution curve. Furthermore, the second refractive correction region B9… The third refractive correction region C9 and the fourth refractive correction region D9 each have multiple peaks. Specifically, the second refractive correction region B9 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C9 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D9 has multiple third peaks S3 and multiple 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.

[0294] To ensure that the ophthalmic lens 900 has a good vision correction effect, in the ninth embodiment, the ophthalmic lens 900 meets the following conditional expression:

[0295] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0296] (2) 0.25mm≤Z1≤1.4mm;

[0297] (3) 0.25mm≤Z2≤1.4mm;

[0298] (4) 0.25mm≤Z3≤1.4mm;

[0299] (5) 0.25mm≤Z4≤1.4mm;

[0300] (6) -1.00D≤PPSD≤1.00D;

[0301] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0302] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0303] (9) -4.00D≤PPS2-PPS3≤4.00D

[0304] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0305] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0306] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0307] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A9; PPS 1 represents the peak refractive power of each of the first peaks S1 in the second refractive correction region B9, and PPT1 represents the valley refractive power of each of the first valleys T1 in the second refractive correction region B9; PPS2 represents the peak refractive power of each of the second peaks S2 in the third refractive correction region C9, and PPT2 represents the valley refractive power of each of the second valleys T2 in the third refractive correction region C9; PPS3 represents the peak refractive power of each of the third peaks S3 in the fourth refractive correction region D9, and PPT3 represents the valley refractive power of each of the third valleys T3 in the fourth refractive correction region D9.

[0308] Depend on Figure 9From the refractive power distribution curve, it can be seen that in the ninth embodiment, the distance Z1 from the center point of the central optical region 10 to its boundary is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 to its boundary is 1.2 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to its boundary is 1.0 mm; and the distance Z4 from the boundary of the third outer ring optical region 40 to its boundary is 0.8 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 PPSD of the first refractive correction area A9 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B9 is 0.00D, and the valley refractive power PPT1 of the second refractive correction area B9 is -1.00D; the peak refractive power PPS2 of the third refractive correction area C9 is 2.00D, and the valley refractive power PPT2 of the third refractive correction area C9 is 1.00D; the peak refractive power PPS3 of the fourth refractive correction area D9 is -1.00D, and the valley refractive power PPT3 of the fourth refractive correction area D9 is -2.00D.

[0309] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 900 in the ninth embodiment are as follows:

[0310] (1) Z1+Z2+Z3+Z4=4.0mm;

[0311] (2) Z1 = 1.0 mm;

[0312] (3) Z2 = 1.2 mm;

[0313] (4) Z3 = 1.0 mm;

[0314] (5) Z4 = 0.8 mm;

[0315] (6) PPSD = -1.00D;

[0316] (7) PPSD-PPS1 = -1.00D;

[0317] (8) PPS1-PPS2=-2.00D;

[0318] (9) PPS2-PPS3=3.00D;

[0319] (10) │PPS1-PPT1│=1.00D;

[0320] (11) │PPS2-PPT2│=1.00D;

[0321] (12) │PPS3-PPT3│=1.00D.

[0322] Thus, the ninth embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 900; furthermore, in the ophthalmic lens 900 of 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 is arranged by a progressively increasing power change from the central optical region 10, the first outer ring optical region 20, and the second outer ring optical region 30, while 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 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, the ophthalmic lens 900, through its multifocal refractive power design, 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 30, providing an effect of reducing visual fatigue for the wearer, making the ophthalmic lens 900 clearer and more comfortable to wear.

[0323] Please refer to Figure 10 The ophthalmic lens 1000 of the tenth preferred embodiment of the present invention 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 morphology 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 substantially 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.

[0324] 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 within 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. Figure 10 As shown in the tenth embodiment, the ophthalmic lens 1000 is plotted on a refractive power distribution curve. The first refractive correction region A10 is located in the central optical zone 10, the second refractive correction region B10 is located in the first outer ring optical zone 20, the third refractive correction region C10 is located in the second outer ring optical zone 30, and the fourth refractive correction region D10 is located in the third outer ring optical zone 40. The first refractive correction region A10 appears as a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B10, the third refractive correction region C10, and the fourth refractive correction region D10 each exhibit continuously changing wavy shapes on the refractive power distribution curve. Furthermore, the second refractive correction region B10... The third refractive correction region C10 and the fourth refractive correction region D10 each have multiple peaks. Specifically, the second refractive correction region B10 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C10 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D10 has multiple third peaks S3 and multiple 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.

[0325] To ensure that the ophthalmic lens 1000 has a good vision correction effect, in the tenth embodiment, the ophthalmic lens 1000 meets the following conditional expression:

[0326] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0327] (2) 0.25mm≤Z1≤1.4mm;

[0328] (3) 0.25mm≤Z2≤1.4mm;

[0329] (4) 0.25mm≤Z3≤1.4mm;

[0330] (5) 0.25mm≤Z4≤1.4mm;

[0331] (6) -1.00D≤PPSD≤1.00D;

[0332] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0333] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0334] (9) -4.00D≤PPS2-PPS3≤4.00D

[0335] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0336] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0337] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0338] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A10; PPS1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 10 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A10; PPS1 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z5 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z6 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z7 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z8 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z9 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z1 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z2 ...3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z5 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z6 is the The first peak S1 in the second refractive correction region B10 is the peak value of the refractive power, PPT1 is the valley value of the first trough T1 in the second refractive correction region B10; PPS2 is the peak value of the second peak S2 in the third refractive correction region C10, PPT2 is the valley value of the second trough T2 in the third refractive correction region C10; PPS3 is the peak value of the third peak S3 in the fourth refractive correction region D10, PPT3 is the valley value of the third trough T3 in the fourth refractive correction region D10.

[0339] Depend on Figure 10From the refractive power distribution curve, it can be seen that in the tenth embodiment, the distance Z1 from the center point of the central optical region 10 to its boundary is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 to its boundary is 1.1 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to its boundary is 1.0 mm; and the distance Z4 from the boundary of the third outer ring optical region 40 to its boundary is 0.9 mm. The distance from the center point of the central optical region 10 to its boundary in the refractive power distribution curve is... The total length of the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power PPSD of the first refractive correction area A10 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B10 is 0.00D, and the valley refractive power PPT1 of the second refractive correction area B10 is -1.00D; the peak refractive power PPS2 of the third refractive correction area C10 is 2.00D, and the valley refractive power PPT2 of the third refractive correction area C10 is 1.00D; the peak refractive power PPS3 of the fourth refractive correction area D10 is 5.00D, and the valley refractive power PPT3 of the fourth refractive correction area D10 is 4.00D.

[0340] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 1000 in the tenth embodiment are as follows:

[0341] (1) Z1+Z2+Z3+Z4=4.0mm;

[0342] (2) Z1 = 1.0 mm;

[0343] (3) Z2 = 1.1 mm;

[0344] (4) Z3 = 1.0 mm;

[0345] (5) Z4 = 0.9 mm;

[0346] (6) PPSD = -1.00D;

[0347] (7) PPSD-PPS1 = -1.00D;

[0348] (8) PPS1-PPS2=-2.00D;

[0349] (9) PPS2-PPS3=-3.00D;

[0350] (10) │PPS1-PPT1│=1.00D;

[0351] (11) │PPS2-PPT2│=1.00D;

[0352] (12) │PPS3-PPT3│=1.00D.

[0353] Thus, the tenth embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 1000; furthermore, in the ophthalmic lens 1000 of 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 is 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 |PPS1 -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, the ophthalmic lens 1000, through its multifocal refractive power design, 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 30, providing an effect of reducing visual fatigue for the wearer, making the ophthalmic lens 1000 clearer and more comfortable to wear.

[0354] Please refer to Figure 11 The ophthalmic lens 1100 of the eleventh preferred embodiment of the present invention 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 morphology 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 substantially 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.

[0355] 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 within 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. Figure 11 As shown in the eleventh embodiment, the ophthalmic lens 1100, according to the refractive power distribution curve, has the first refractive correction region A11 located in the first outer ring optical zone 20, the second refractive correction region B11 located in the central optical zone 10, the third refractive correction region C11 located in the second outer ring optical zone 30, and the fourth refractive correction region D11 located in the third outer ring optical zone 40. The first refractive correction region A11 appears as a horizontal straight line on the refractive power distribution curve, while the second, third, and fourth refractive correction regions C11 and D11 respectively exhibit continuously changing wavy shapes 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 T1 in the refractive power distribution curve, the third refractive correction region C11 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D11 has multiple third peaks S3 and multiple 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 each only need to have at least one peak in the refractive power distribution curve.

[0356] To ensure that the ophthalmic lens 1100 has a good vision correction effect, in the eleventh embodiment, the ophthalmic lens 1100 meets the following condition:

[0357] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0358] (2) 0.25mm≤Z1≤1.4mm;

[0359] (3) 0.25mm≤Z2≤1.4mm;

[0360] (4) 0.25mm≤Z3≤1.4mm;

[0361] (5) 0.25mm≤Z4≤1.4mm;

[0362] (6) -1.00D≤PPSD≤1.00D;

[0363] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0364] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0365] (9) -4.00D≤PPS2-PPS3≤4.00D

[0366] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0367] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0368] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0369] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A11; PPS1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 10 to its boundary; Z3 is the distance from the boundary of the second outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A11; PPS1 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z5 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z6 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z7 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z8 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z9 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z1 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z1 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z2 ...3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z5 is the The first peak S1 in the second refractive correction region B11 is the peak value of refractive power, PPT1 is the valley value of refractive power of the first trough T1 in the second refractive correction region B11; PPS2 is the peak value of refractive power of the second peak S2 in the third refractive correction region C11, PPT2 is the valley value of refractive power of the second trough T2 in the third refractive correction region C11; PPS3 is the peak value of refractive power of the third peak S3 in the fourth refractive correction region D11, PPT3 is the valley value of refractive power of the third trough T3 in the fourth refractive correction region D11.

[0370] Depend on Figure 11From the refractive power distribution curve, it can be seen that in the eleventh embodiment, the distance Z1 from the center point of the central optical region 10 to its boundary is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 to its boundary is 1.1 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to its boundary is 0.9 mm; and the distance Z4 from the boundary of the third outer ring optical region 40 to its boundary is 1.0 mm. The distance from the center point of the central optical region 10 to its boundary in the refractive power distribution curve is... The total length of the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power PPSD of the first refractive correction area A11 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B11 is 0.00D, and the valley refractive power PPT1 of the second refractive correction area B11 is -1.00D; the peak refractive power PPS2 of the third refractive correction area C11 is 2.00D, and the valley refractive power PPT2 of the third refractive correction area C11 is 1.00D; the peak refractive power PPS3 of the fourth refractive correction area D11 is 5.00D, and the valley refractive power PPT3 of the fourth refractive correction area D11 is 4.00D.

[0371] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 1100 in the eleventh embodiment are as follows:

[0372] (1) Z1+Z2+Z3+Z4=4.0mm;

[0373] (2) Z1 = 1.0 mm;

[0374] (3) Z2 = 1.1 mm;

[0375] (4) Z3 = 0.9 mm;

[0376] (5) Z4 = 1.0 mm;

[0377] (6) PPSD = -1.00D;

[0378] (7) PPSD-PPS1 = -1.00D;

[0379] (8) PPS1-PPS2=-2.00D;

[0380] (9) PPS2-PPS3=-3.00D;

[0381] (10) │PPS1-PPT1│=1.00D;

[0382] (11) │PPS2-PPT2│=1.00D;

[0383] (12) │PPS3-PPT3│=1.00D.

[0384] Thus, the eleventh embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 1100; furthermore, in the ophthalmic lens 1100 of 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, 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 of the first refractive correction region A11, the third refractive correction region C11 and the fourth refractive correction region D11 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. 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, wherein 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, the ophthalmic lens 1100, through its multifocal refractive power design, 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 30, thereby reducing visual fatigue for the wearer and making the ophthalmic lens 1100 clearer and more comfortable to wear.

[0385] Please refer to Figure 12 The ophthalmic lens 1200 of the twelfth preferred embodiment of the present invention 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 morphology 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 substantially 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.

[0386] 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 within 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. Figure 12 As shown in the twelfth embodiment, in the refractive power distribution curve of the ophthalmic lens 1200, the first refractive correction region A12 is located in the second outer ring optical zone 30, the second refractive correction region B12 is located in the central optical zone 10, the third refractive correction region C12 is located in the first outer ring optical zone 20, and the fourth refractive correction region D12 is located in the third outer ring optical zone 40. The first refractive correction region A12 appears as a horizontal straight line on the refractive power distribution curve, while 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. Furthermore, the second refractive correction region B12... The third refractive correction region C12 and the fourth refractive correction region D12 each have multiple peaks. Specifically, the second refractive correction region B12 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C12 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D12 has multiple third peaks S3 and multiple third troughs 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.

[0387] To ensure that the ophthalmic lens 1200 has a good vision correction effect, in the twelfth embodiment, the ophthalmic lens 1200 meets the following condition:

[0388] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0389] (2) 0.25mm≤Z1≤1.4mm;

[0390] (3) 0.25mm≤Z2≤1.4mm;

[0391] (4) 0.25mm≤Z3≤1.4mm;

[0392] (5) 0.25mm≤Z4≤1.4mm;

[0393] (6) -1.00D≤PPSD≤1.00D;

[0394] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0395] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0396] (9) -4.00D≤PPS2-PPS3≤4.00D

[0397] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0398] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0399] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0400] Wherein, Z1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A12; PPS1 is the distance from the center point of the central optical region 10 to its boundary; Z2 is the distance from the boundary of the first outer ring optical region 10 to its boundary; Z3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the third outer ring optical region 40 to its boundary; PPSD is the refractive power of the first refractive correction region A12; PPS1 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z5 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z6 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z7 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z8 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z9 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z1 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z2 ...3 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z4 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z5 is the distance from the boundary of the first outer ring optical region 20 to its boundary; Z6 is the The first peak S1 in the second refractive correction region B12 is the peak value of the refractive power, PPT1 is the valley value of the first trough T1 in the second refractive correction region B12; PPS2 is the peak value of the second peak S2 in the third refractive correction region C12, PPT2 is the valley value of the second trough T2 in the third refractive correction region C12; PPS3 is the peak value of the third peak S3 in the fourth refractive correction region D12, PPT3 is the valley value of the third trough T3 in the fourth refractive correction region D12.

[0401] Depend on Figure 12From the refractive power distribution curve, it can be seen that in the twelfth embodiment, the distance Z1 from the center point of the central optical region 10 to its boundary is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 to its boundary is 1.0 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to its boundary is 1.0 mm; the distance Z4 from the boundary of the third outer ring optical region 40 to its boundary is 1.0 mm; and the distance from the center point of the central optical region 10 to its boundary is 1.0 mm. The total length of the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power PPSD of the first refractive correction area A12 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B12 is 0.00D, and the valley refractive power PPT1 of the second refractive correction area B12 is -1.00D; the peak refractive power PPS2 of the third refractive correction area C12 is 2.00D, and the valley refractive power PPT2 of the third refractive correction area C12 is 1.00D; the peak refractive power PPS3 of the fourth refractive correction area D12 is 5.00D, and the valley refractive power PPT3 of the fourth refractive correction area D12 is 4.00D.

[0402] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 1200 in the twelfth embodiment are as follows:

[0403] (1) Z1+Z2+Z3+Z4=4.0mm;

[0404] (2) Z1 = 1.0 mm;

[0405] (3) Z2 = 1.0 mm;

[0406] (4) Z3 = 1.0 mm;

[0407] (5) Z4 = 1.0 mm;

[0408] (6) PPSD = -1.00D;

[0409] (7) PPSD-PPS1 = -1.00D;

[0410] (8) PPS1-PPS2=-2.00D;

[0411] (9) PPS2-PPS3=-3.00D;

[0412] (10) │PPS1-PPT1│=1.00D;

[0413] (11) │PPS2-PPT2│=1.00D;

[0414] (12) │PPS3-PPT3│=1.00D.

[0415] Thus, the twelfth embodiment satisfies the conditions set at points (1) to (12) of the aforementioned ophthalmic lens 1200; furthermore, in the ophthalmic lens 1200 of 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 correction region C12 is higher than the refractive power of the second refractive correction region D12. The difference between the peak and trough refractive power in the positive region B12 (PPS1-PPT1), the difference between the peak and trough refractive power in the third refractive correction region C12 (PPS2-PPT2), and the difference between the peak and trough refractive power in the fourth refractive correction region D12 (PPS3-PPT3) are all the same. Thus, the ophthalmic lens 1200, through its multifocal refractive power design, 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 30, providing an effect of reducing visual fatigue for the wearer, making the ophthalmic lens 1200 clearer and more comfortable to wear.

[0416] Please refer to Figure 13 The ophthalmic lens 1300 of the thirteenth preferred embodiment of the present invention 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 morphology 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 substantially 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.

[0417] 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 within 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. Figure 13 As shown in the thirteenth embodiment, the ophthalmic lens 1300, according to the refractive power distribution curve, has the first refractive correction region A13 located in the third outer ring optical zone 40, the second refractive correction region B13 located in the central optical zone 10, the third refractive correction region C13 located in the first outer ring optical zone 20, and the fourth refractive correction region D13 located in the second outer ring optical zone 30. The first refractive correction region A13 appears as a horizontal straight line on the refractive power distribution curve, while the second refractive correction region B13, the third refractive correction region C13, and the fourth refractive correction region D13 each exhibit continuously changing wavy shapes on the refractive power distribution curve. Furthermore, the second refractive correction region B13... The third refractive correction region C13 and the fourth refractive correction region D13 each have multiple peaks. Specifically, the second refractive correction region B13 has multiple first peaks S1 and multiple first troughs T1 in the refractive power distribution curve, the third refractive correction region C13 has multiple second peaks S2 and multiple second troughs T2 in the refractive power distribution curve, and the fourth refractive correction region D13 has multiple third peaks S3 and multiple third troughs 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.

[0418] To ensure that the ophthalmic lens 1300 has a good vision correction effect, in the thirteenth embodiment, the ophthalmic lens 1300 meets the following condition:

[0419] (1) 3.5mm≤Z1+Z2+Z3+Z4≤5.0mm;

[0420] (2) 0.25mm≤Z1≤1.4mm;

[0421] (3) 0.25mm≤Z2≤1.4mm;

[0422] (4) 0.25mm≤Z3≤1.4mm;

[0423] (5) 0.25mm≤Z4≤1.4mm;

[0424] (6) -1.00D≤PPSD≤1.00D;

[0425] (7) -2.00D≤PPSD-PPS1≤2.00D;

[0426] (8) -3.00D≤PPS1-PPS2≤3.00D;

[0427] (9) -4.00D≤PPS2-PPS3≤4.00D

[0428] (10) 1.00D≤│PPS1-PPT1│≤4.00D;

[0429] (11) 1.00D≤│PPS2-PPT2│≤4.00D;

[0430] (12) 1.00D≤│PPS3-PPT3│≤4.00D.

[0431] 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; PPS1 is the distance from the boundary of the first refractive correction region A13 to the boundary of the third outer ring optical region 40. The first peak S1 in the second refractive correction region B13 is the peak value of the refractive power, PPT1 is the valley value of the first trough T1 in the second refractive correction region B13; PPS2 is the peak value of the second peak S2 in the third refractive correction region C13, PPT2 is the valley value of the second trough T2 in the third refractive correction region C13; PPS3 is the peak value of the third peak S3 in the fourth refractive correction region D13, PPT3 is the valley value of the third trough T3 in the fourth refractive correction region D13.

[0432] Depend on Figure 13From the refractive power distribution curve, it can be seen that in the thirteenth embodiment, the distance Z1 from the center point of the central optical region 10 to its boundary is 1.0 mm; the distance Z2 from the boundary of the first outer ring optical region 20 to its boundary is 1.0 mm; the distance Z3 from the boundary of the first outer ring optical region 20 to its boundary is 1.0 mm; the distance Z4 from the boundary of the third outer ring optical region 40 to its boundary is 1.0 mm; and the distance from the center point of the central optical region 10 to its boundary is 1.0 mm. The total length of the boundary of the third outer ring optical zone 40 is Z1+Z2+Z3+Z4=4.0mm; the refractive power PPSD of the first refractive correction area A13 is -1.00D, the peak refractive power PPS1 of the second refractive correction area B13 is 0.00D, and the valley refractive power PPT1 of the second refractive correction area B13 is -1.00D; the peak refractive power PPS2 of the third refractive correction area C13 is 2.00D, and the valley refractive power PPT2 of the third refractive correction area C13 is 1.00D; the peak refractive power PPS3 of the fourth refractive correction area D13 is 5.00D, and the valley refractive power PPT3 of the fourth refractive correction area D13 is 4.00D.

[0433] Therefore, based on the detailed values ​​of the aforementioned refractive power distribution curve, the specific values ​​of the conditional formula for the aforementioned ophthalmic lens 1300 in the thirteenth embodiment are as follows:

[0434] (1) Z1+Z2+Z3+Z4=4.0mm;

[0435] (2) Z1 = 1.0 mm;

[0436] (3) Z2 = 1.0 mm;

[0437] (4) Z3 = 1.0 mm;

[0438] (5) Z4 = 1.0 mm;

[0439] (6) PPSD = -1.00D;

[0440] (7) PPSD-PPS1 = -1.00D;

[0441] (8) PPS1-PPS2=-2.00D;

[0442] (9) PPS2-PPS3=-3.00D;

[0443] (10) │PPS1-PPT1│=1.00D;

[0444] (11) │PPS2-PPT2│=1.00D;

[0445] (12) │PPS3-PPT3│=1.00D.

[0446] Thus, the thirteenth embodiment satisfies the conditions set in points (1) to (12) of the aforementioned ophthalmic lens 1300; furthermore, in the ophthalmic lens 1300 of the thirteenth embodiment, the second refractive correction region B13, the third refractive correction region C13, and the fourth refractive correction region D13 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 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 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, the ophthalmic lens 1300, through its multifocal refractive power design, 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 30, providing an effect of reducing visual fatigue for the wearer, making the ophthalmic lens 1300 clearer and more comfortable to wear.

[0447] In summary, the ophthalmic lenses of the first to thirteenth embodiments, through multifocal refractive power design, reduce the refractive power difference 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 30, providing an effect of reducing visual fatigue for the wearer, 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 among 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 each refractive correction area is separately configured with a refractive power, thereby increasing the diversity of refractive power arrangement of the ophthalmic lenses.

[0448] The above description is only a preferred and feasible embodiment of the present invention. Any equivalent changes made by applying the present invention specification and claims should be included within the patent scope of the present invention.

Claims

1. An ophthalmic lens, comprising: A central optical region, having a central point; A first outer ring optical region surrounds the central optical region; A second outer ring optical region surrounds the first outer ring optical region; and A third outer ring optical region surrounds 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. in, 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 area; 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; and Z4 is the distance from the boundary of the second outer ring optical area to the boundary of the third outer ring optical area.

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 of 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. The ophthalmic lens according to 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 region.

7. The ophthalmic lens according to 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. The ophthalmic lens according to any one of claims 1 to 5, wherein the ophthalmic lens satisfies the following range: -3.00D≤PPS1-PPS2≤3.00D, wherein 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. The ophthalmic lens according to any one of claims 1 to 5, wherein the ophthalmic lens satisfies the following range: -4.00D≤PPS2-PPS3≤4.00D, wherein 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. The ophthalmic lens according to any one of claims 1 to 5, wherein the second refractive correction region has a plurality of first peaks and a plurality of first troughs in the refractive power distribution curve, and the ophthalmic lens satisfies the following range: 1.00D≤│PPS1-PPT1│≤4.00D, wherein PPS1 is the peak refractive power of each of the first peaks in the second refractive correction region, and PPT1 is the trough refractive power of each of the first troughs in the second refractive correction region.

11. The ophthalmic lens according to 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.

12. The ophthalmic lens according to 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.

13. The ophthalmic lens of 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 area.

14. The ophthalmic lens of claim 1, wherein the ophthalmic lens satisfies the following range: 0.25mm ≤ Z2 ≤ 1.4mm, where Z2 is the distance from the boundary of the central optical area to the boundary of the first outer ring optical area.

15. The ophthalmic lens of 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 area extending from the boundary of the first outer ring optical area to the boundary of the second outer ring optical area.

16. The ophthalmic lens of claim 1, wherein the ophthalmic lens satisfies the following range: 0.25mm ≤ Z4 ≤ 1.4mm, where Z4 is the distance between the third outer ring optical area extending from the boundary of the second outer ring optical area to the boundary of the third outer ring optical area.

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