CN216351503U - Zoom lens - Google Patents
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- CN216351503U CN216351503U CN202123066966.XU CN202123066966U CN216351503U CN 216351503 U CN216351503 U CN 216351503U CN 202123066966 U CN202123066966 U CN 202123066966U CN 216351503 U CN216351503 U CN 216351503U
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Abstract
The utility model relates to a zoom lens, which comprises a first lens group (G1) with positive focal power, a second lens group (G2) with negative focal power, a Stop (STO), a third lens group (G3) with positive or negative focal power, a fourth lens group (G4) with positive focal power and a fifth lens group (G5) with positive focal power, wherein the sixth lens group (G6) with positive or negative focal power is arranged on the image side of the fifth lens group (G5) in sequence from the object side to the image side. The zoom lens has the characteristics of high resolution, large variable magnification and low distortion.
Description
Technical Field
The utility model relates to the technical field of optical imaging, in particular to a zoom lens.
Background
With the development of chip technologies such as CCD and CMOS, and the improvement of image quality requirements of people for video conferences, the standards for the imaging quality of the supporting optical system are also increasing. In order to meet this trend, optical lenses mounted on video conference products are required to have high resolution, large magnification, low distortion, and other properties.
The existing large-magnification zoom lens still has some performance defects, so that the use scene of the existing large-magnification zoom lens is limited. For example, the resolving power is insufficient, the resolution is low, and for example, the wide-angle is not large enough, the shooting range is limited, and the telephoto end magnification is not large enough, and the magnification is insufficient. In addition, the method has the defects of large distortion, serious deformation of an imaging picture and the like. The range of the focusing object distance of the existing lens is not wide enough, so that the use scene is limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a zoom lens.
In order to achieve the above object, the present invention provides a zoom lens, which includes a first lens group having positive refractive power, a second lens group having negative refractive power, a stop, a third lens group having positive or negative refractive power, a fourth lens group having positive refractive power, and a fifth lens group having positive refractive power, which are arranged in order from an object side to an image side along an optical axis, wherein the image side of the fifth lens group further includes a sixth lens group having positive or negative refractive power, and the sixth lens group is a fixed lens group.
According to an aspect of the present invention, the first lens group and the third lens group are fixed lens groups;
the second lens group and the fourth lens group are zoom lens groups, and the fifth lens group is a focusing lens group.
According to an aspect of the utility model, the first lens group includes at least three positive lenses and one negative lens.
According to an aspect of the utility model, the first lens group comprises at least one biconvex positive lens and one biconcave positive lens.
According to an aspect of the utility model, the second lens group includes at least one positive lens and two negative lenses.
According to an aspect of the utility model, the second lens group comprises a concave-convex negative lens.
According to an aspect of the utility model, the third lens group includes at least a positive lens and a negative lens.
According to an aspect of the utility model, the third lens group comprises at least one biconcave negative lens.
According to an aspect of the utility model, the fourth lens group includes at least two positive lenses and one negative lens.
According to an aspect of the utility model, the fourth lens group includes at least one biconvex positive lens and one biconcave lens.
According to an aspect of the utility model, the fifth lens group includes at least a positive lens and a negative lens.
According to an aspect of the utility model, the fifth lens group comprises at least one concave-convex lens.
According to an aspect of the utility model, the sixth lens group comprises at least one concave-convex lens.
According to one aspect of the present invention, the zoom lens comprises at least two cemented lens groups.
According to an aspect of the present invention, the fourth lens group comprises at least one cemented lens group.
According to an aspect of the present invention, a focal length FA of the cemented lens group and a focal length F4 of the fourth lens group satisfy the following relationship: 8.84 ℃ below zero and 19.70 percent of FA/F4.
According to one aspect of the utility model, the zoom lens includes at least five aspheric lenses.
According to an aspect of the present invention, at least three of the aspheric lenses are made of plastic.
According to an aspect of the present invention, a focal length F1 of the first lens group satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft of the zoom lens, respectively:
13.10≤F1/Fw≤19.86；
0.72≤F1/Ft≤1.11。
according to an aspect of the present invention, a focal length F2 of the second lens group satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft of the zoom lens, respectively:
-2.99≤F2/Fw≤-2.06；
-0.17≤F2/Ft≤-0.11。
according to an aspect of the present invention, a focal length F3 of the third lens group satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft of the zoom lens, respectively:
-133.09≤F3/Fw≤168.21；
-10.75≤F3/Ft≤12.70。
according to an aspect of the present invention, a focal length F4 of the fourth lens group satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft of the zoom lens, respectively:
5.06≤F4/Fw≤6.35；
0.28≤F4/Ft≤0.36。
according to an aspect of the present invention, a focal length F5 of the fifth lens group satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft of the zoom lens, respectively:
8.17≤F5/Fw≤18.78；
0.45≤F5/Ft≤1.05。
according to an aspect of the present invention, a focal length F6 of the sixth lens group satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft of the zoom lens, respectively:
-77.80≤F6/Fw≤55.08；
-4.33≤F6/Ft≤3.07。
according to an aspect of the present invention, the wide-angle end focal length Fw and the telephoto end focal length Ft of the zoom lens respectively satisfy the following relationships with the total optical length TTL of the zoom lens:
0.02≤Fw/TTL≤0.03；
0.49≤Ft/TTL≤0.52。
according to the concept of the present invention, a zoom lens with high resolution, large magnification ratio, and low distortion is provided.
According to one scheme of the utility model, the range of the focusable object distance is wider by reasonably setting the positions and focal powers of the fixed, variable-power and focusing lens groups, the object distance can be clearly focused from 0.1m to infinity in the whole zooming process, so that a better imaging effect is realized, the variable-power multiplying power is higher, and the multiplying power variation range can reach more than 20X from the wide-angle end to the telephoto end.
According to one scheme of the utility model, through reasonably setting the focal power and the shape of the lens in each lens group and matching with the positive and negative focal powers of the reasonably distributed groups, the resolution can reach more than 4K, and the wide-angle end has a wide visual field range which can reach more than 85 degrees.
According to one scheme of the utility model, through reasonably arranging the cemented lens group, the absolute value of the distortion in the whole zooming process is less than 5%, the deformation of a shot picture is less, and the single part and the assembly tolerance are better, so that the method has good manufacturability.
According to one scheme of the utility model, a glass-plastic mixed structure is adopted, and an aspheric lens is reasonably arranged, so that the design cost can be reduced while a larger magnification is ensured.
According to one scheme of the utility model, the relationship between the focal length of each lens group and the focal length of the wide-angle end and the telephoto end of the lens is reasonably set, so that the focusing object distance range is wider, the object distance can be clearly focused from 0.1m to infinity in the whole zooming process, a better imaging effect is realized, the variable magnification is higher, and the magnification variation range can reach more than 20X from the wide-angle end to the telephoto end.
According to one scheme of the utility model, the relationship between the focal length of the wide-angle end and the telephoto end of the lens and the total optical length is reasonably set, so that the variable magnification is higher, the variation range of the magnification from the wide-angle end to the telephoto end can reach more than 20X, and the requirement of miniaturization of the lens can be met.
Drawings
Fig. 1 schematically shows a configuration diagram of a zoom lens according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram showing a configuration of a zoom lens according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram showing a configuration of a zoom lens according to a third embodiment of the present invention;
FIG. 4 is a schematic diagram showing a configuration of a zoom lens according to a fourth embodiment of the present invention;
fig. 5 schematically shows a configuration diagram of a zoom lens according to a fifth embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship that is based on the orientation or positional relationship shown in the associated drawings, which is for convenience and simplicity of description only, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above-described terms should not be construed as limiting the present invention.
The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.
Referring to fig. 1, the zoom lens of the present invention includes, in order from an object side to an image side along an optical axis, a first lens group G1 having positive power, a second lens group G2 having negative power, a stop STO, a third lens group G3 having positive or negative power, a fourth lens group G4 having positive power, a fifth lens group G5 having positive power, and a sixth lens group G6 having positive or negative power. The first lens group G1, the third lens group G3 and the sixth lens group G6 are fixed lens groups. The second lens group G2 and the fourth lens group G4 are magnification-varying lens groups, and the fifth lens group G5 is a focusing lens group. Therefore, the range of the object distance capable of being focused is wide, the object distance can be clearly focused from 0.1m to infinity in the whole zooming process, the imaging effect is good, the zoom magnification is high, and the magnification variation range can reach more than 20X from the wide-angle end to the telephoto end.
In the present invention, the first lens group G1 at least includes three positive lenses and one negative lens. The first lens group G1 at least includes a biconvex positive lens and a biconcave positive lens. The second lens group G2 at least includes a positive lens and two negative lenses. The second lens group G2 includes at least one concave-convex negative lens. The third lens group G3 at least includes a positive lens and a negative lens. The third lens group G3 includes at least one biconcave negative lens. The fourth lens group G4 includes at least two positive lenses and one negative lens. The fourth lens group G4 at least includes a biconvex positive lens and a biconcave lens. The fifth lens group G5 at least includes a positive lens and a negative lens. The fifth lens group G5 includes at least one concave-convex lens. The sixth lens group G6 includes at least one concave-convex lens. Therefore, by reasonably distributing the positive and negative focal powers and the shapes of the lenses and reasonably distributing the positive and negative focal powers of the groups, the resolution can reach more than 4K, and the wide-angle end has a wide visual field range which can reach more than 85 degrees.
In the present invention, in a direction from the object side to the image side along the optical axis, the first lens group G1 includes a first lens L1, a second lens L2, a third lens L3, and a fourth lens L4, the second lens group G2 includes a fifth lens L5, a sixth lens L6, a seventh lens L7, and an eighth lens L8, the third lens group G3 includes a ninth lens L9 and a tenth lens L10, the fourth lens group G4 includes an eleventh lens L11, a twelfth lens L12, a thirteenth lens L13, and a fourteenth lens L14, the fifth lens group G5 includes a fifteenth lens L15, a sixteenth lens L16, and a seventeenth lens L17, and the sixth lens group G6 includes an eighteenth lens L18.
In the utility model, the zoom lens at least comprises two cemented lens groups. The fourth lens group G4 at least includes a cemented lens group, and the focal length FA of the cemented lens group and the focal length F4 of the fourth lens group G4 satisfy the following relationship: 8.84 ℃ below zero and 19.70 percent of FA/F4. Therefore, the absolute value of the distortion of the whole zooming process is less than 5%, the deformation of a shot picture is ensured to be small, and the single-part product and the assembly tolerance are good, so that the device has good manufacturability.
In the present invention, the zoom lens comprises at least five aspheric lenses, wherein at least three of the aspheric lenses are made of plastic. So, adopt glass to mould mixed structure, can reduce design cost when guaranteeing great magnification.
In the present invention, the focal length F1 of the first lens group G1 satisfies the following relationships with the wide-angle end focal length Fw and the telephoto end focal length Ft of the zoom lens, respectively: F1/Fw is more than or equal to 13.10 and less than or equal to 19.86; F1/Ft is more than or equal to 0.72 and less than or equal to 1.11. The focal length F2 of the second lens group G2 satisfies the following relationships with the wide-angle end focal length Fw and the telephoto end focal length Ft of the zoom lens, respectively: F2/Fw is more than or equal to-2.99 and less than or equal to-2.06; F2/Ft is more than or equal to-0.17 and less than or equal to-0.11. The focal length F3 of the third lens group G3 satisfies the following relationships with the wide-angle end focal length Fw and the telephoto end focal length Ft of the zoom lens, respectively: -133.09 ≦ F3/Fw ≦ 168.21; 10.75 ≦ F3/Ft ≦ 12.70. The focal length F4 of the fourth lens group G4 satisfies the following relationships with the wide-angle end focal length Fw and the telephoto end focal length Ft of the zoom lens, respectively: F4/Fw is more than or equal to 5.06 and less than or equal to 6.35; F4/Ft is more than or equal to 0.28 and less than or equal to 0.36. A focal length F5 of the fifth lens group G5 satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft of the zoom lens, respectively: F5/Fw is more than or equal to 8.17 and less than or equal to 18.78; F5/Ft is more than or equal to 0.45 and less than or equal to 1.05. A focal length F6 of the sixth lens group G6 satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft of the zoom lens, respectively: 77.80 ℃ F6/Fw 55.08; F6/Ft is more than or equal to-4.33 and less than or equal to 3.07. Therefore, the range of the object distance capable of being focused is wide, the object distance can be clearly focused from 0.1m to infinity in the whole zooming process, the imaging effect is good, the zoom magnification is high, and the magnification variation range can reach more than 20X from the wide-angle end to the telephoto end.
In the utility model, the wide-angle end focal length Fw and the telephoto end focal length Ft of the zoom lens respectively satisfy the following relations with the total optical length TTL of the zoom lens: Fw/TTL is more than or equal to 0.02 and less than or equal to 0.03; Ft/TTL is more than or equal to 0.49 and less than or equal to 0.52. Therefore, the variable magnification is higher, the magnification variation range can reach more than 20X from the wide-angle end to the telephoto end, and the miniaturization of the lens can be met.
In summary, the zoom lens reasonably distributes the positive and negative powers and the lens shapes of the lenses, and reasonably distributes the positive and negative powers of the groups, so that the resolution can reach more than 4K. The wide-angle end of the zoom lens has wide visual field range which can reach more than 85 degrees; the variable magnification is higher, and the magnification variation range can reach more than 20X from the wide angle end to the telephoto end; the absolute value of distortion in the whole zooming process is less than 5 percent, so that the deformation of a shot picture can be ensured to be small; the focusing object distance range is wide, the object distance can be clearly focused from 0.1m to infinity in the whole zooming process, and the imaging effect is good. In addition, the zoom lens adopts a glass-plastic mixed structure, so that the design cost can be reduced while the larger magnification is ensured. The zoom lens has good single-component products and assembly tolerance, thereby having good manufacturability.
In the following five embodiments, the surfaces of the optical elements are denoted by 1, 2, …, and N, the stop is denoted by STO, and the Image plane is denoted by Image. The aspheric formula is:
wherein z is the axial distance from the curved surface to the vertex at the position with the height h perpendicular to the optical axis along the direction of the optical axis; c represents the curvature at the apex of the aspherical surface; k is a conic coefficient; a. the4、A6、A8、A10、A12、A14、A16The aspherical coefficients of the fourth, sixth, eighth, tenth, twelfth, fourteenth and sixteenth orders are expressed respectively.
The parameters of each embodiment specifically satisfying the above conditional expressions are shown in table 1 below:
TABLE 1 first embodiment
Referring to fig. 1, in the present embodiment, the second lens group G2 includes two positive lenses and two negative lenses; the focal power of the third lens group G3 is positive; the fourth lens group G4 includes three positive lenses and one negative lens; the fifth lens group G5 includes two positive lenses and a negative lens; the sixth lens group G6 has negative optical power.
The zoom lens of the present embodiment includes three cemented lens groups and five aspheric lenses, wherein the four aspheric lenses are made of plastic, and other parameters are as follows: TTL is 125.015 mm; fno (wide) 1.88; the focal length fw at the wide angle end is 3.48 mm; the tele end focal length ft is 62.58 mm.
The parameters of each optical element in the zoom lens according to the present embodiment are shown in table 2 below:
TABLE 2
The aspherical surface coefficients of the aspherical lenses in the present embodiment are shown in table 3 below:
TABLE 3
The zoom lens according to the present embodiment has variable magnification data at the wide angle end and the telephoto end as shown in table 4 below:
TABLE 4
Second embodiment
Referring to fig. 2, in the present embodiment, the second lens group G2 includes one positive lens and three negative lenses; the focal power of the third lens group G3 is negative; the fourth lens group G4 includes three positive lenses and one negative lens; the fifth lens group G5 includes two positive lenses and a negative lens; the sixth lens group G6 has negative optical power.
The zoom lens of the present embodiment includes three cemented lens groups and five aspheric lenses, wherein the four aspheric lenses are made of plastic, and other parameters are as follows: TTL is 125 mm; fno (wide) 1.88; the focal length fw at the wide angle end is 3.48 mm; the tele end focal length ft is 62.60 mm.
The parameters of each optical element in the zoom lens according to the present embodiment are shown in table 5 below:
TABLE 5
The aspherical surface coefficients of the aspherical lenses in the present embodiment are shown in table 6 below:
TABLE 6
The zoom lens according to the present embodiment has variable magnification data at the wide angle end and the telephoto end as shown in table 7 below:
| thickness d | Wide angle end | Telescope end |
| T1 | 0.8 | 44.02 |
| T2 | 45.62 | 2.4 |
| T3 | 11.35 | 1.13 |
| T4 | 3.245 | 3.247 |
| T5 | 4.545 | 14.763 |
TABLE 7
Third embodiment
Referring to fig. 3, in the present embodiment, the second lens group G2 includes one positive lens and three negative lenses; the focal power of the third lens group G3 is positive; the fourth lens group G4 includes two positive lenses and two negative lenses; the fifth lens group G5 includes two positive lenses and a negative lens; the focal power of the sixth lens group G6 is positive;
the zoom lens of the present embodiment includes three cemented lens groups and five aspheric lenses, wherein the three aspheric lenses are made of plastic, and other parameters are as follows: TTL is 126.03 mm; fno (wide) 1.88; the focal length fw at the wide angle end is 3.48 mm; the tele end focal length ft is 62.56 mm.
The parameters of each optical element in the zoom lens according to the present embodiment are shown in table 8 below:
TABLE 8
The aspherical surface coefficients of the aspherical lenses in the present embodiment are shown in table 9 below:
TABLE 9
The zoom lens according to the present embodiment has variable magnification data at the wide angle end and the telephoto end as shown in table 10 below:
| thickness d | Wide angle end | Telescope end |
| T1 | 0.8 | 38.29 |
| T2 | 39.89 | 2.4 |
| T3 | 16.89 | 1.13 |
| T4 | 2.99 | 9.471 |
| T5 | 5.74 | 15.019 |
Watch 10
Fourth embodiment
Referring to fig. 4, in the present embodiment, the second lens group G2 includes one positive lens and three negative lenses; the focal power of the third lens group G3 is positive; the fourth lens group G4 includes two positive lenses and two negative lenses; the fifth lens group G5 includes a positive lens and two negative lenses; the sixth lens group G6 has positive optical power.
The zoom lens of the present embodiment includes two cemented lens groups and six aspheric lenses, wherein the five aspheric lenses are made of plastic, and other parameters are as follows: TTL is 125.01 mm; fno (wide) ═ 1.89; the focal length fw at the wide angle end is 3.55 mm; the tele end focal length ft is 63.96 mm.
The parameters of each optical element in the zoom lens according to the present embodiment are shown in table 11 below:
TABLE 11
The aspherical surface coefficients of the aspherical lenses in the present embodiment are shown in table 12 below:
TABLE 12
The zoom lens according to the present embodiment has variable magnification data at the wide angle end and the telephoto end as shown in table 13 below:
| thickness d | Wide angle end | Telescope end |
| T1 | 0.8 | 34.6 |
| T2 | 36.2 | 2.4 |
| T3 | 16.29 | 1.1 |
| T4 | 3.53 | 3.505 |
| T5 | 3.84 | 19.055 |
Watch 13
Fifth embodiment
Referring to fig. 5, in the present embodiment, the second lens group G2 includes one positive lens and three negative lenses; the focal power of the third lens group G3 is positive; the fourth lens group G4 includes two positive lenses and two negative lenses; the fifth lens group G5 includes a positive lens and two negative lenses; the sixth lens group G6 has positive optical power.
The zoom lens of the present embodiment includes three cemented lens groups and seven aspheric lenses, wherein the six aspheric lenses are made of plastic, and other parameters are as follows: TTL is 125 mm; fno (wide) 1.87; the wide-angle end focal length fw is 3.56 mm; the tele end focal length ft is 64.09 mm.
The parameters of each optical element in the zoom lens according to the present embodiment are shown in table 14 below:
TABLE 14
The aspherical surface coefficients of the aspherical lenses in the present embodiment are shown in table 15 below:
watch 15
The zoom lens according to the present embodiment has variable magnification data at the wide angle end and the telephoto end as shown in table 16 below:
| thickness d | Wide angle end | Telescope end |
| T1 | 0.8 | 30.55 |
| T2 | 32.15 | 2.4 |
| T3 | 17.85 | 1.1 |
| T4 | 3.141 | 3.103 |
| T5 | 3.889 | 20.677 |
TABLE 16
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and it is apparent to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (25)
1. A zoom lens comprising, in order from an object side to an image side along an optical axis, a first lens group (G1) having positive power, a second lens group (G2) having negative power, a Stop (STO), a third lens group (G3) having positive or negative power, a fourth lens group (G4) having positive power, and a fifth lens group (G5) having positive power, characterized in that a sixth lens group (G6) having positive or negative power is further included on the image side of the fifth lens group (G5), the sixth lens group (G6) being a fixed lens group.
2. A zoom lens according to claim 1, wherein the first lens group (G1) and the third lens group (G3) are fixed lens groups;
the second lens group (G2) and the fourth lens group (G4) are magnification-varying lens groups, and the fifth lens group (G5) is a focusing lens group.
3. A zoom lens according to claim 1, wherein the first lens group (G1) comprises at least three positive lenses and one negative lens.
4. A zoom lens according to claim 3, wherein the first lens group (G1) comprises at least one of a biconvex positive lens and a biconcave positive lens.
5. A zoom lens according to claim 1, wherein the second lens group (G2) comprises at least one positive lens and two negative lenses.
6. The zoom lens according to claim 5, wherein the second lens group (G2) comprises at least one concave-convex negative lens.
7. A zoom lens according to claim 1, wherein the third lens group (G3) comprises at least a positive lens and a negative lens.
8. The zoom lens according to claim 7, wherein the third lens group (G3) comprises at least one biconcave negative lens.
9. A zoom lens according to claim 1, wherein the fourth lens group (G4) comprises at least two positive lenses and one negative lens.
10. The zoom lens according to claim 9, wherein the fourth lens group (G4) comprises at least one of a biconvex positive lens and a biconcave positive lens.
11. A zoom lens according to claim 1, wherein the fifth lens group (G5) comprises at least a positive lens and a negative lens.
12. The zoom lens according to claim 11, wherein the fifth lens group (G5) comprises at least one concave-convex lens.
13. A zoom lens according to claim 1, wherein the sixth lens group (G6) comprises at least one meniscus lens.
14. The zoom lens according to claim 1, wherein the zoom lens comprises at least two cemented lens groups.
15. A zoom lens according to claim 14, wherein the fourth lens group (G4) comprises at least one cemented lens group.
16. A zoom lens according to claim 15, wherein the focal length FA of the cemented lens group and the focal length F4 of the fourth lens group (G4) satisfy the following relationship: 8.84 ℃ below zero and 19.70 percent of FA/F4.
17. The zoom lens according to claim 1, wherein the zoom lens includes at least five aspherical lenses.
18. The zoom lens of claim 17, wherein at least three of the aspheric lenses are made of plastic.
19. A zoom lens according to any one of claims 1 to 18, wherein the focal length F1 of the first lens group (G1) satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft, respectively, of the zoom lens:
13.10≤F1/Fw≤19.86；
0.72≤F1/Ft≤1.11。
20. a zoom lens according to any one of claims 1 to 18, wherein the focal length F2 of the second lens group (G2) satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft, respectively, of the zoom lens:
-2.99≤F2/Fw≤-2.06；
-0.17≤F2/Ft≤-0.11。
21. a zoom lens according to any one of claims 1 to 18, wherein the focal length F3 of the third lens group (G3) satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft, respectively, of the zoom lens:
-133.09≤F3/Fw≤168.21；
-10.75≤F3/Ft≤12.70。
22. a zoom lens according to any one of claims 1 to 18, wherein the focal length F4 of the fourth lens group (G4) satisfies the following relationships, respectively, with the wide-angle end focal length Fw and the telephoto end focal length Ft of the zoom lens:
5.06≤F4/Fw≤6.35；
0.28≤F4/Ft≤0.36。
23. a zoom lens according to any one of claims 1 to 18, wherein the focal length F5 of the fifth lens group (G5) satisfies the following relationships with a wide-angle end focal length Fw and a telephoto end focal length Ft, respectively, of the zoom lens:
8.17≤F5/Fw≤18.78；
0.45≤F5/Ft≤1.05。
24. a zoom lens according to any one of claims 1 to 18, wherein the focal length F6 of the sixth lens group (G6) satisfies the following relationships, respectively, with the wide-angle end focal length Fw and the telephoto end focal length Ft of the zoom lens:
-77.80≤F6/Fw≤55.08；
-4.33≤F6/Ft≤3.07。
25. a zoom lens according to any one of claims 1 to 18, wherein the wide-angle end focal length Fw and the telephoto end focal length Ft of the zoom lens respectively satisfy the following relationships with the total optical length TTL of the zoom lens:
0.02≤Fw/TTL≤0.03；
0.49≤Ft/TTL≤0.52。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123066966.XU CN216351503U (en) | 2021-12-08 | 2021-12-08 | Zoom lens |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123066966.XU CN216351503U (en) | 2021-12-08 | 2021-12-08 | Zoom lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089518A (en) * | 2021-12-08 | 2022-02-25 | 舜宇光学(中山)有限公司 | Zoom lens |
| CN114815196A (en) * | 2022-06-06 | 2022-07-29 | 舜宇光学(中山)有限公司 | Zoom lens |
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2021
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089518A (en) * | 2021-12-08 | 2022-02-25 | 舜宇光学(中山)有限公司 | Zoom lens |
| CN114815196A (en) * | 2022-06-06 | 2022-07-29 | 舜宇光学(中山)有限公司 | Zoom lens |
| CN114815196B (en) * | 2022-06-06 | 2024-02-23 | 舜宇光学(中山)有限公司 | Zoom lens |
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