CN108761728B - Optical imaging lens and electronic device - Google Patents
Optical imaging lens and electronic device Download PDFInfo
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- CN108761728B CN108761728B CN201810627862.5A CN201810627862A CN108761728B CN 108761728 B CN108761728 B CN 108761728B CN 201810627862 A CN201810627862 A CN 201810627862A CN 108761728 B CN108761728 B CN 108761728B
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Abstract
The invention relates to an optical imaging lens and an electronic apparatus. The present invention provides an optical imaging lens at least comprising, from an object side to an image side: a first lens, a second lens, and a third lens, the lenses meeting the definition of certain optical conditions. The present invention provides an electronic device, comprising: the optical imaging lens comprises a shell and an image module, wherein the shell and the image module are arranged in the shell and comprise an optical imaging lens, a lens cone used for arranging the optical imaging lens, a module rear seat unit used for arranging the lens cone, a substrate used for arranging the module rear seat unit and an image sensor which is arranged on the substrate and positioned at the image side of the optical imaging lens. The electronic device and the optical imaging lens thereof maintain good optical performance and effectively shorten the length of the lens.
Description
The patent application of the invention is divisional application. The original application number is 201410452628.5, the application date is 2014, 09 and 05, and the invention name is as follows: optical imaging lens and electron device.
Technical Field
The present invention relates to an optical imaging lens and an electronic device having the optical imaging lens, and more particularly, to an optical imaging lens with a multi-lens and an electronic device using the same.
Background
The specifications of consumer electronic products are changing day by day, and the steps for pursuing light, thin, short and small products are not slowed down, so that the specifications of key components of electronic products such as optical lenses and the like must be continuously improved to meet the requirements of consumers. The most important characteristics of the optical lens are not only the imaging quality and volume.
The optical lens design is not simply to shrink the lens with good imaging quality in equal proportion to manufacture the optical lens with both imaging quality and miniaturization, and the design process involves material characteristics and also needs to consider practical problems of production aspects such as assembly yield.
In summary, the technical difficulty of the miniaturized lens is significantly higher than that of the conventional lens, so how to manufacture an optical lens meeting the requirements of consumer electronic products and continuously improve the imaging quality thereof has been a goal earnestly pursued by the product, official and academic circles in the field for a long time.
Disclosure of Invention
An object of the present invention is to provide an electronic device and an optical imaging lens thereof, which can reduce the length of a system while maintaining good optical performance and system performance by controlling the characteristics of the concave-convex curved surface arrangement and/or the refractive index arrangement of each lens.
According to the present invention, an optical imaging lens assembly includes, from an object side to an image side, at least a first lens element, a second lens element and a third lens element, wherein the lens elements satisfy the following requirements: HFOV ≦ 25; TTL ≦ 20; the HFOV is a half field angle, and the TTL is a length from an object side surface of the first lens to an imaging surface on an optical axis.
According to the present invention, there is also provided an optical imaging lens assembly, comprising, from an object side to an image side, at least a first lens element, a second lens element and a third lens element, wherein the following conditions are satisfied: 2.00 ≦ EFL/IH; EFL ≦ 20; wherein EFL is the effective focal length of the system, and IH is the image height of the system on the imaging surface.
According to another aspect of the present invention, an optical imaging lens assembly includes, from an object side to an image side, at least a first lens element, a second lens element and a third lens element, where the following requirements are satisfied: TTL/EFL ≦ 1.4; IH ≦ 5; wherein, TTL is the length of the first lens body on the optical axis from the object side to the imaging surface, EFL is the effective focal length of the system, and IH is the image height of the system on the imaging surface.
The present invention provides an electronic device according to the above-mentioned optical imaging lens, comprising: the optical imaging lens comprises a shell and an image module, wherein the shell and the image module are arranged in the shell and comprise an optical imaging lens, a lens cone used for arranging the optical imaging lens, a module rear seat unit used for arranging the lens cone, a substrate used for arranging the module rear seat unit and an image sensor which is arranged on the substrate and positioned at the image side of the optical imaging lens.
As can be seen from the above, the electronic device and the optical imaging lens thereof of the present invention maintain good optical performance and effectively shorten the lens length by controlling the concave-convex curved surface arrangement and/or the refractive index of each lens.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of each lens of an optical imaging lens according to a first embodiment of the present invention.
Fig. 2 is a schematic diagram of longitudinal spherical aberration of the optical imaging lens of the first embodiment of the present invention.
Fig. 3 is a schematic view of astigmatism of the optical imaging lens according to the first embodiment of the present invention.
Fig. 4 is a schematic diagram of distortion aberration of the optical imaging lens of the first embodiment of the present invention.
Fig. 5 is a schematic cross-sectional structure diagram of each lens of an optical imaging lens according to a second embodiment of the present invention.
Fig. 6 is a schematic diagram of longitudinal spherical aberration of an optical imaging lens of a second embodiment of the present invention.
Fig. 7 is a schematic view of astigmatism of an optical imaging lens according to a second embodiment of the present invention.
Fig. 8 is a schematic diagram of distortion aberration of an optical imaging lens of the second embodiment of the present invention.
Fig. 9 is a schematic cross-sectional structure diagram of each lens of an optical imaging lens according to a third embodiment of the present invention.
Fig. 10 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a third embodiment of the present invention.
Fig. 11 is a schematic view of astigmatism of an optical imaging lens according to a third embodiment of the present invention.
Fig. 12 is a schematic diagram of distortion aberration of an optical imaging lens of the third embodiment of the present invention.
Fig. 13 is a schematic cross-sectional structure diagram of each lens of an optical imaging lens according to a fourth embodiment of the present invention.
Fig. 14 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a fourth embodiment of the present invention.
Fig. 15 is a schematic view of astigmatism of an optical imaging lens according to a fourth embodiment of the present invention.
Fig. 16 is a schematic diagram of distortion aberration of an optical imaging lens of the fourth embodiment of the present invention.
Fig. 17 is a schematic sectional structure view of each lens of an optical imaging lens according to a fifth embodiment of the present invention.
Fig. 18 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a fifth embodiment of the present invention.
Fig. 19 is a schematic view of astigmatism of an optical imaging lens according to a fifth embodiment of the present invention.
Fig. 20 is a schematic diagram of distortion aberration of an optical imaging lens of a fifth embodiment of the present invention.
Fig. 21 is a schematic sectional structure view of each lens of an optical imaging lens according to a sixth embodiment of the present invention.
Fig. 22 is a schematic diagram of longitudinal spherical aberration of an optical imaging lens of a sixth embodiment of the present invention.
Fig. 23 is a schematic view of astigmatism of an optical imaging lens according to a sixth embodiment of the present invention.
Fig. 24 is a schematic view of distortion aberration of an optical imaging lens of a sixth embodiment of the present invention.
Fig. 25 is a schematic sectional structure view of each lens of an optical imaging lens according to a seventh embodiment of the present invention.
Fig. 26 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a seventh embodiment of the present invention.
Fig. 27 is a schematic view of astigmatism of an optical imaging lens according to a seventh embodiment of the present invention.
Fig. 28 is a schematic diagram of distortion aberration of the optical imaging lens of the seventh embodiment of the present invention.
Fig. 29 is a schematic sectional structure view of each lens of an optical imaging lens according to an eighth embodiment of the present invention.
Fig. 30 is a schematic view of longitudinal spherical aberration of an optical imaging lens of an eighth embodiment of the present invention.
Fig. 31 is a schematic view of astigmatism of an optical imaging lens according to an eighth embodiment of the present invention.
Fig. 32 is a schematic diagram of distortion aberration of an optical imaging lens of the eighth embodiment of the present invention.
Fig. 33 is a schematic sectional structure view of each lens of an optical imaging lens according to a ninth embodiment of the present invention.
Fig. 34 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a ninth embodiment of the present invention.
Fig. 35 is a schematic view of astigmatism of an optical imaging lens according to a ninth embodiment of the present invention.
Fig. 36 is a schematic view of distortion aberration of an optical imaging lens of the ninth embodiment of the present invention.
Fig. 37 is a schematic sectional structure view of each lens of an optical imaging lens according to a tenth embodiment of the present invention.
Fig. 38 is a schematic view of longitudinal spherical aberration of an optical imaging lens of the tenth embodiment of the present invention.
Fig. 39 is a schematic view of astigmatism of an optical imaging lens according to a tenth embodiment of the present invention.
Fig. 40 is a schematic diagram of distortion aberration of an optical imaging lens of the tenth embodiment of the present invention.
Fig. 41 is a schematic sectional structure view of each lens of an optical imaging lens according to an eleventh embodiment of the present invention.
Fig. 42 is a schematic diagram of longitudinal spherical aberration of an optical imaging lens of an eleventh embodiment of the present invention.
Fig. 43 is a schematic view of astigmatism of an optical imaging lens according to an eleventh embodiment of the present invention.
Fig. 44 is a schematic diagram of distortion aberration of an optical imaging lens of the eleventh embodiment of the present invention.
Fig. 45 is a schematic cross-sectional view of each lens of an optical imaging lens according to a twelfth embodiment of the present invention.
Fig. 46 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a twelfth embodiment of the present invention.
Fig. 47 is a schematic view of astigmatism of an optical imaging lens according to a twelfth embodiment of the present invention.
Fig. 48 is a schematic view of distortion aberration of an optical imaging lens of the twelfth embodiment of the present invention.
Fig. 49 is a schematic sectional structure view of each lens of an optical imaging lens according to a thirteenth embodiment of the present invention.
Fig. 50 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a thirteenth embodiment of the present invention.
Fig. 51 is a schematic view of astigmatism of an optical imaging lens according to a thirteenth embodiment of the present invention.
Fig. 52 is a schematic diagram of distortion aberration of an optical imaging lens of the thirteenth embodiment of the present invention.
Fig. 53 is a schematic cross-sectional structure view of each lens of an optical imaging lens according to a fourteenth embodiment of the present invention.
Fig. 54 is a schematic view of longitudinal spherical aberration of an optical imaging lens according to a fourteenth embodiment of the present invention.
Fig. 55 is a schematic view of astigmatism of an optical imaging lens according to a fourteenth embodiment of the present invention.
Fig. 56 is a schematic view of distortion aberration of an optical imaging lens of the fourteenth embodiment of the present invention.
Fig. 57 is a schematic cross-sectional structure diagram of each lens of an optical imaging lens according to a fifteenth embodiment of the present invention.
Fig. 58 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a fifteenth embodiment of the present invention.
Fig. 59 is a schematic view of astigmatism of an optical imaging lens according to a fifteenth embodiment of the present invention.
Fig. 60 is a schematic view of distortion aberration of an optical imaging lens of a fifteenth embodiment of the present invention.
Fig. 61 is a schematic sectional structure view of each lens of an optical imaging lens according to a sixteenth embodiment of the present invention.
Fig. 62 is a schematic diagram of longitudinal spherical aberration of an optical imaging lens of a sixteenth embodiment of the present invention.
Fig. 63 is a schematic view of astigmatism of an optical imaging lens according to a sixteenth embodiment of the present invention.
Fig. 64 is a schematic view of distortion aberration of an optical imaging lens of a sixteenth embodiment of the present invention.
Fig. 65 is a schematic sectional structure view of each lens of an optical imaging lens according to a seventeenth embodiment of the present invention.
Fig. 66 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a seventeenth embodiment of the present invention.
Fig. 67 is a schematic view of astigmatism of an optical imaging lens according to a seventeenth embodiment of the present invention.
Fig. 68 is a schematic view of distortion aberration of an optical imaging lens of a seventeenth embodiment of the present invention.
Fig. 69 is a schematic sectional structure view of each lens of an optical imaging lens according to an eighteenth embodiment of the present invention.
Fig. 70 is a schematic view of longitudinal spherical aberration of an optical imaging lens of an eighteenth embodiment of the present invention.
Fig. 71 is a schematic view of astigmatism of an optical imaging lens according to an eighteenth embodiment of the present invention.
Fig. 72 is a schematic view of distortion aberration of an optical imaging lens of an eighteenth embodiment of the present invention.
Fig. 73 is a schematic sectional structure view of each lens of an optical imaging lens according to a nineteenth embodiment of the present invention.
Fig. 74 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a nineteenth embodiment of the present invention.
Fig. 75 is a schematic view of astigmatism of an optical imaging lens according to a nineteenth embodiment of the present invention.
Fig. 76 is a schematic diagram of distortion aberration of an optical imaging lens of a nineteenth embodiment of the present invention.
Fig. 77 is a schematic sectional structure view of each lens of an optical imaging lens according to a twentieth embodiment of the present invention.
Fig. 78 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a twentieth embodiment of the present invention.
Fig. 79 is a schematic view of astigmatism of an optical imaging lens according to a twentieth embodiment of the present invention.
Fig. 80 is a schematic diagram of distortion aberration of an optical imaging lens of a twentieth embodiment of the present invention.
Fig. 81 is a schematic sectional structure view of each lens of an optical imaging lens according to a twenty-first embodiment of the present invention.
Fig. 82 is a schematic view of longitudinal spherical aberration of an optical imaging lens of a twenty-first embodiment of the present invention.
Fig. 83 is a schematic view of astigmatism of an optical imaging lens according to a twenty-first embodiment of the present invention.
Fig. 84 is a schematic diagram of distortion aberration of an optical imaging lens of a twenty-first embodiment of the present invention.
Fig. 85 is a schematic cross-sectional view of a lens in an embodiment of the invention.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references in mind, one skilled in the art will understand that other embodiments are possible and that the advantages of the invention are readily apparent. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
In the present specification, the term "a lens element having positive refractive power (or negative refractive power)" means that the lens element has positive refractive power (or negative refractive power) in a region near the optical axis. The term "object-side surface (or image-side surface) of a lens includes a convex surface portion (or concave surface portion) located in a region" means that the region is more "outwardly convex" (or "inwardly concave") in a direction parallel to the optical axis than an outer region immediately radially outside the region. Taking fig. 85 as an example, where I is the optical axis and such a lens is radially symmetrical to each other with the optical axis I as the axis of symmetry, the object side surface of the lens has a convex surface portion in the a region, a concave surface portion in the B region and a convex surface portion in the C region, because the a region is more convex toward the direction parallel to the optical axis than the outer region (i.e., the B region) immediately adjacent to the region in the radial direction, the B region is more concave toward the inside than the C region, and the C region is also more convex toward the outside than the E region similarly. The "area near the circumference" refers to an area near the circumference of a curved surface on the lens for only imaging light rays to pass through, i.e. the area C in the figure, where the imaging light rays include a chief ray (chief ray) Lc and a marginal ray (margin ray) Lm. The "region near the optical axis" refers to the region near the optical axis of the curved surface through which only the imaging light passes, i.e., region a in the figure. In addition, the lens further includes an extension portion E for assembling the lens in an optical imaging lens, and an ideal imaging light does not pass through the extension portion E, but the structure and shape of the extension portion E are not limited thereto.
For convenience of explanation, english abbreviations of terms of the optical characteristic parameters related to the optical imaging lens of the present invention are defined below. In the following description, the English abbreviations are used directly, and the definitions of the English abbreviations follow the definitions in the table.
The optical imaging lens of the present invention is composed of a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and other lens elements, which are disposed in order along an optical axis from an object side to an image side, wherein each lens element has an object side surface facing the object side and allowing the imaging light to pass therethrough, and an image side surface facing the image side and allowing the imaging light to pass therethrough. The optical imaging lens of the invention can provide good optical performance and enlarge the visual angle by designing the detailed characteristics and/or the refractive index configuration of each lens.
If the side surfaces and the image side surfaces of the lenses in the embodiments related to the optical imaging lens of the present invention are aspheric, the shapes of the object side surfaces and the image side surfaces are expressed by the following curve equation (a), and are not described again:
y: the distance between a point on the aspheric curve and the optical axis;
z: aspheric depth (the perpendicular distance between a point on the aspheric surface that is Y from the optical axis and a tangent plane tangent to the vertex on the aspheric optical axis);
r: the radius of curvature of the lens surface;
k: a cone coefficient;
ai: the ith order aspheric coefficients.
To illustrate that the present invention can provide good optical performance and shorten the overall length of the system, a number of embodiments and detailed optical data thereof are provided below for detailed description.
In the drawings of the embodiments shown in fig. 1 to 84, the first lens 10, the second lens 20, the third lens 30, the fourth lens 40, the fifth lens 50, and the sixth lens 60 (specifically, the number of lenses is slightly changed depending on the number of lenses, and fig. 57 is taken as an example) are respectively arranged from the left to the right of the straight optical path on the drawing plane, the left side of the drawing plane of the x-th lens x0 is an object side x1 thereof, the region near the optical axis on the object side x1 is denoted by x11, the region near the circumference on the object side x1 is denoted by x12, the right side of the drawing plane is an image side x2 thereof, the region near the optical axis on the image side x2 is denoted by x21, and the region near the circumference on the image side x2 is denoted by x 22; the left side of the drawing is object side A1, and the right side of the drawing is image side A2.
And a first lens 10, a second lens 20, a third lens 30, a fourth lens 40, a fifth lens 50, and a sixth lens 60 (specifically, the number of lenses is slightly changed, for example, fig. 69) respectively from left to right and from top to bottom of the broken-line optical path according to the drawing plane, and a mirror M1 at the bending position of the optical path, wherein the left side of the x-th lens x0 is an object side x1 thereof, a region near the optical axis of the object side x1 is marked as x11, a region near the circumference of the object side x1 is marked as x12, the right side of the drawing plane is an object image plane x2 thereof, a region near the optical axis of the image side x2 is marked as x21, and a region near the circumference of the image side x2 is marked as x 22; or, the upper side of the x-th lens x0 is the object side x1, the area near the optical axis of the x1 is marked as x11, the area near the circumference of the x1 is marked as x12, the lower side of the x-th lens is the object image plane x2, the area near the optical axis of the x2 is marked as x21, and the area near the circumference of the x2 is marked as x 22; (ii) a The left or upper side of the drawing is the object side A1, and the right or lower side of the drawing is the image side A2.
In addition, the optical imaging lens can further comprise an aperture stop S1 (which can be positioned at the left side of the first lens 10 or between the two lenses), an imaging plane I1, and a filter CF1 positioned between the imaging planes I1.
For the sake of simplicity, reference may be made to fig. 57 and 69 for illustration and the above description for other embodiments.
The first embodiment:
referring to fig. 1, the optical lens of the first embodiment of the present invention includes an aperture stop S1, a first lens element 10, a second lens element 20, and a third lens element 30 sequentially from an object-side surface a1 to an image-side surface a 2.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex surface portion in the optical axis vicinity region 121 and a concave surface portion in the circumferential vicinity region 122.
The second lens element 20 has a negative refractive index, and has a concave portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a negative refractive index, and has a concave portion in a region 311 of the object-side surface 31 near the optical axis and a concave portion in a region 312 near the circumference. The image side surface 32 has a convex surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the third lens element 30 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the first embodiment is shown in table 1-1 below.
Tables 1 to 1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First pass through Mirror (object side) Noodle) | -7.839721E- 01 | 0.000000E+ 00 | 1.380396E -04 | 1.041757E -03 | - 1.657339E -04 | 2.294747E -05 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| First pass through Mirror (image side) Noodle) | 0.000000E+ 00 | 0.000000E+ 00 | 6.700699E -04 | 1.809030E -03 | - 1.029458E -04 | - 1.681865E -05 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Second pass through Mirror (object side) Noodle) | -1.289194E+ 02 | 0.000000E+ 00 | - 3.928692E -03 | 4.757483E -03 | - 9.313620E -04 | 4.353737E -05 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Second pass through Mirror (image side) Noodle) | 0.000000E+ 00 | 0.000000E+ 00 | 6.536406E -03 | 5.016123E -03 | - 2.247826E -03 | 3.329043E -04 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Third pass through Mirror (object side) Noodle) | 0.000000E+ 00 | 0.000000E+ 00 | - 6.150906E -02 | - 2.674198E -04 | - 2.968713E -04 | - 5.708244E -05 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Third pass through Mirror (image side) Noodle) | 0.000000E+ 00 | 0.000000E+ 00 | - 5.281717E -02 | 8.922641E -03 | - 1.764385E -03 | 2.286233E -04 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics and the widths of the air gaps of the lenses in the optical imaging lens according to the present embodiment are shown in tables 1 to 2 below.
Tables 1 to 2:
system parameters regarding the optical imaging lens of the present embodiment are shown in tables 1 to 3 below.
Tables 1 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (Whole focus of system, unit mm) | 11.310985 |
| HFOV (half view angle, unit degree) | 8.97978301 |
| TTL (System Total Length, Unit mm) | 9.40054875 |
| Fno (aperture value) | 2.34053667 |
| RI (relative illuminance) | 0.878 |
| CRA (chief ray angle, unit degree) | 15.87 |
On the other hand, as can be seen from fig. 2 to 4, the optical imaging lens of the present embodiment has good performance in longitudinal spherical aberration (fig. 2), astigmatism (fig. 3, sagittal and meridional directions), and distortion aberration (fig. 4).
Therefore, it can be seen from the above that the optical imaging lens of the present embodiment can reliably maintain good optical performance and effectively shorten the lens length.
Second embodiment:
referring to fig. 5, the optical lens of the second embodiment of the present invention includes an aperture stop S1, a first lens element 10, a second lens element 20, and a third lens element 30 sequentially from an object-side surface a1 to an image-side surface a 2.
The first lens element 10 has a negative refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side surface 12 has a concave portion in a region 121 near the optical axis and a concave portion in a region 122 near the circumference.
The second lens element 20 has a positive refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a convex portion in a region 212 near the circumference. The image side 22 has a convex portion in the optical axis vicinity region 221 and a convex portion in the circumference vicinity region 222.
The third lens element 30 has a negative refractive index, and has a concave portion in a region 311 of the object-side surface 31 near the optical axis and a concave portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the third lens element 30 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the second embodiment is shown in table 2-1 below.
Table 2-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object side) | 0.000000E+00 | 0.000000E+00 | -1.149777E-02 | 1.268162E-04 | -7.154302E-05 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| First lens (image side) | -2.217949E+00 | 0.000000E+00 | 6.991716E-03 | -1.511903E-03 | 4.786397E-05 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Second lens (object side) | -8.231150E-01 | 0.000000E+00 | -8.103392E-04 | -5.727761E-04 | 3.659000E-05 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Second lens (image side) | 0.000000E+00 | 0.000000E+00 | -4.784758E-03 | 1.552463E-04 | 1.666193E-05 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Third lens (object side) | 0.000000E+00 | 0.000000E+00 | -7.677381E-02 | 9.528993E-03 | 2.871211E-05 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Third lens (image side) | 0.000000E+00 | 0.000000E+00 | -6.360030E-02 | 1.610907E-02 | -1.476799E-03 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics and the widths of the air gaps of the lenses in the optical imaging lens according to the present embodiment are shown in table 2-2 below.
Tables 2 to 2:
system parameters regarding the optical imaging lens of the present embodiment are shown in tables 2 to 3 below.
Tables 2 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (Whole focus of system, unit mm) | 11.3074867 |
| HFOV (half view angle, unit degree) | 8.98115714 |
| TTL (System Total Length, Unit mm) | 9.90010621 |
| Fno (aperture value) | 2.35647778 |
| RI (relative illuminance) | 0.88 |
| CRA (chief ray angle, unit degree) | 16.26 |
On the other hand, as can be seen from fig. 6 to 8, the optical imaging lens of the present embodiment has excellent performance in longitudinal spherical aberration (fig. 6), astigmatism (fig. 7, sagittal and meridional directions), and distortion aberration (fig. 8).
Therefore, it can be seen from the above that the optical imaging lens of the present embodiment can reliably maintain good optical performance and effectively shorten the lens length.
Further, this embodiment has the following effects compared to the first embodiment: the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
The third embodiment:
referring to fig. 9, the optical lens assembly of the third embodiment of the present invention includes, in order from an object side a1 to an image side a2, a first lens element 10, a stop S1, a second lens element 20, a third lens element 30, and a fourth lens element 40.
The first lens element 10 has a negative refractive index, and has a convex surface portion in a region 111 near the optical axis on the object-side surface 11 and a concave surface portion in a region 112 near the circumference. The image side surface 12 has a concave portion in a region 121 near the optical axis and a concave portion in a region 122 near the circumference.
The second lens element 20 has a positive refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a convex portion in a region 212 near the circumference. The image side 22 has a convex portion in the optical axis vicinity region 221 and a convex portion in the circumference vicinity region 222.
The third lens element 30 has a negative refractive index, and has a concave portion in a region 311 of the object-side surface 31 near the optical axis and a concave portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a concave surface portion in the circumference vicinity area 322.
The fourth lens element 40 has negative refractive power, and has a concave portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fourth lens element 40 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the third embodiment is shown in table 3-1 below.
Table 3-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E+ 00 | 0.000000E +00 | - 2.376620E- 02 | 0.000000E+ 00 | 0.000000E+ 00 | 0.000000E+ 00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | -3.848529E +00 | 0.000000E +00 | - 1.059230E- 02 | 1.441829E- 04 | 0.000000E+ 00 | 0.000000E+ 00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E+ 00 | 0.000000E +00 | - 1.138553E- 02 | 4.202909E- 03 | - 7.323312E- 04 | 4.705055E- 05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E+ 00 | 0.000000E +00 | 1.479792E- 02 | - 6.180213E- 03 | 1.224969E- 03 | - 7.879202E- 05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E+ 00 | 0.000000E +00 | 1.028947E- 02 | - 1.125594E- 02 | 2.905599E- 03 | - 2.324527E- 04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E+ 00 | 0.000000E +00 | - 9.592328E- 03 | - 3.842653E- 04 | 5.868192E- 04 | 0.000000E+ 00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E+ 00 | 0.000000E +00 | - 1.797643E- 01 | 5.910375E- 02 | - 4.248711E- 03 | - 3.166389E- 03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E+ 00 | 0.000000E +00 | - 1.713337E- 01 | 9.101275E- 02 | - 2.517687E- 02 | 2.469701E- 03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics and the widths of the air gaps of the lenses in the optical imaging lens according to the present embodiment are shown in table 3-2 below.
Tables 3-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following tables 3 to 3.
Tables 3 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (Whole focus of system, unit mm) | 11.30627348 |
| HFOV (half view angle, unit degree) | 8.983889271 |
| TTL (System Total Length, Unit mm) | 9.400144168 |
| Fno (aperture value) | 2.492861611 |
| RI (relative illuminance) | 0.864 |
| CRA (chief ray angle, unit degree) | 17.91 |
On the other hand, as can be seen from fig. 10 to 12, the optical imaging lens of the present embodiment has excellent performance in longitudinal spherical aberration (fig. 10), astigmatism (in sagittal and meridional directions in fig. 11), and distortion aberration (fig. 12).
Therefore, it can be seen from the above that the optical imaging lens of the present embodiment can reliably maintain good optical performance and effectively shorten the lens length.
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the stop position of this embodiment is different from that of the first embodiment (the advantage of the stop being located at the forefront is that the lens length can be shortened; the field angle is larger as the stop goes backward, the imaging quality is better), the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberrations, distortion maps), and this embodiment is easier to manufacture than the first embodiment and therefore has a higher yield.
The fourth embodiment:
referring to fig. 13, the optical lens system of the fourth embodiment of the present invention includes an aperture stop S1, a first lens element 10, a second lens element 20, a reflector M1, a third lens element 30, and a fourth lens element 40 in sequence from an object-side surface a1 to an image-side surface a 2.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a convex surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has negative refractive power, and has a concave portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a concave surface portion in the circumference vicinity area 422.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fourth lens element 40 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the fourth embodiment is shown in table 4-1 below.
Table 4-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object side) | -1.637188E-01 | 0.000000E+00 | 1.755565E-03 | 4.864692E-04 | -2.956535E-04 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| First lens (image side) | -1.456399E+00 | 0.000000E+00 | 1.263903E-02 | -6.429712E-03 | 7.516481E-04 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Second lens (object side) | 0.000000E+00 | 0.000000E+00 | -5.566229E-02 | 3.894972E-03 | 6.426120E-04 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Second lens (image side) | 0.000000E+00 | 0.000000E+00 | -7.299985E-02 | 1.268056E-02 | -7.993944E-04 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Third lens (object side) | 0.000000E+00 | 0.000000E+00 | 1.013897E-02 | -4.125402E-03 | 9.078711E-04 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Third lens (image side) | 0.000000E+00 | 0.000000E+00 | -2.318859E-02 | 7.281140E-04 | -2.111556E-04 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Fourth lens (object side) | 0.000000E+00 | 0.000000E+00 | 2.439164E-02 | -1.050589E-02 | 5.970393E-04 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
| Fourth lens (image side) | 4.129458E-02 | 0.000000E+00 | 7.324128E-02 | -1.298761E-02 | 1.279833E-03 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 | 0.000000E+00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics and the widths of the air gaps of the lenses in the optical imaging lens according to the present embodiment are shown in table 4-2 below.
Tables 4-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 4-3.
Tables 4 to 3:
on the other hand, as can be seen from fig. 10 to 12, the optical imaging lens of the present embodiment has excellent performance in longitudinal spherical aberration (fig. 10), astigmatism (in sagittal and meridional directions in fig. 11), and distortion aberration (fig. 12).
Therefore, it can be seen from the above that the optical imaging lens of the present embodiment can reliably maintain good optical performance and effectively shorten the lens length.
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Fifth embodiment:
referring to fig. 17, the optical lens assembly of the fifth embodiment of the present invention includes, in order from an object side a1 to an image side a2, a stop S1, a first lens element 10, a second lens element 20, a reflector M1, a third lens element 30, and a fourth lens element 40.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side 22 has a concave portion in the region 221 near the optical axis and a convex portion in the region 222 near the circumference.
The third lens element 30 has a positive refractive index, and has a concave portion in a region 311 of the object-side surface 31 near the optical axis and a concave portion in a region 312 near the circumference. The image side surface 32 has a convex surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has negative refractive power, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a convex portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a concave surface portion in the circumference vicinity area 422.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fourth lens element 40 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the fifth embodiment is shown in the following table 5-1.
Table 5-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | - 5.607237E +00 | 0.000000E +00 | 1.424850E -02 | - 1.433639E -03 | - 7.430229E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | - 8.496017E +01 | 0.000000E +00 | 2.021590E -03 | - 4.683273E -03 | 9.175869E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.640203E -02 | - 2.921253E -03 | 1.507283E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | - 1.260430E +01 | 0.000000E +00 | - 6.533346E -03 | - 1.015821E -03 | 7.805577E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 9.045754E -03 | 2.556025E -03 | - 5.937657E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | - 6.341989E +00 | 0.000000E +00 | - 4.584844E -04 | 3.612210E -03 | - 4.874828E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.901476E -03 | 1.685945E -03 | - 1.218053E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | - 5.029073E +00 | 0.000000E +00 | - 4.686845E -03 | 7.839728E -04 | 4.596522E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 5-2 below.
Tables 5-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 5-3.
Tables 5 to 3:
| IH (image height, unit mm) | 2.3 |
| EFL (Whole focus of system, unit mm) | 7.294752795 |
| HFOV (half view angle, unit degree) | 17.49627188 |
| TTL (System Total Length, Unit mm) | 8.700004185 |
| Fno (aperture value) | 2.402438603 |
| RI (relative illuminance) | 0.83 |
| CRA (chief ray angle, unit degree) | 21.42 |
On the other hand, as can be seen from fig. 18 to 20, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 18), astigmatism (in fig. 19, sagittal and meridional directions), and distortion aberration (fig. 20).
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Sixth embodiment:
referring to fig. 21, the optical lens assembly of the sixth embodiment of the present invention includes, in order from an object side a1 to an image side a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, and a fifth lens element 50.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a convex portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a concave surface portion in the circumference vicinity area 322.
The fourth lens element 40 has negative refractive power, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a convex portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a concave surface portion in the circumference vicinity area 422.
The fifth lens element 50 has a positive refractive index, and has a concave portion in a region 511 of the object-side surface 51 near the optical axis and a convex portion in a region 512 near the circumference. The image side surface 52 has a convex surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fifth lens element 50 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the sixth embodiment is shown in table 6-1 below.
Table 6-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E+ 00 | 0.000000E +00 | - 3.655460E- 03 | 8.114806E- 04 | - 7.184044E- 05 | - 7.951620E- 06 | 1.144581E -06 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E+ 00 | 0.000000E +00 | 3.454222E- 03 | - 1.440735E- 04 | - 3.328317E- 05 | - 2.782154E- 06 | 9.107791E -07 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E+ 00 | 0.000000E +00 | - 8.657462E- 03 | - 2.158117E- 04 | - 4.619230E- 06 | 6.189584E- 06 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E+ 00 | 0.000000E +00 | - 1.493183E- 02 | 1.763846E- 03 | - 7.339573E- 04 | 1.151265E- 04 | ######### ## | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E+ 00 | 0.000000E +00 | 3.981841E- 03 | 6.824501E- 04 | 0.000000E+ 00 | 0.000000E+ 00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E+ 00 | 0.000000E +00 | - 1.909782E- 02 | 6.458467E- 03 | 0.000000E+ 00 | 0.000000E+ 00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E+ 00 | 0.000000E +00 | 4.214071E- 02 | - 2.057215E- 02 | 0.000000E+ 00 | 0.000000E+ 00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E+ 00 | 0.000000E +00 | 9.004955E- 02 | - 1.629374E- 02 | - 2.249455E- 03 | 2.695595E- 04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E+ 00 | 0.000000E +00 | 2.418333E- 03 | 2.497989E- 04 | 2.392404E- 04 | 0.000000E+ 00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | - 4.579258E- 01 | 0.000000E +00 | - 1.193502E- 02 | 2.426744E- 03 | - 5.652951E- 04 | 9.572508E- 05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 6-2 below.
Table 6-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 6-3.
Tables 6 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (Whole focus of system, unit mm) | 11.32266365 |
| HFOV (half view angle, unit degree) | 8.990230814 |
| TTL (System Total Length, Unit mm) | 9.90002019 |
| Fno (aperture value) | 2.384556422 |
| RI (relative illuminance) | 0.937 |
| CRA (chief ray angle, unit degree) | 4.199 |
On the other hand, as can be seen from fig. 22 to 24, the optical imaging lens of the present embodiment has excellent performance in longitudinal spherical aberration (fig. 22), astigmatism (in sagittal and meridional directions in fig. 23), and distortion aberration (fig. 24).
Further, this embodiment has the following effects compared to the first embodiment: the aperture F # of this embodiment is smaller (smaller F # value, larger aperture) than that of the first embodiment, the imaging quality is better), the half angle of field of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Seventh embodiment:
referring to fig. 25, the optical lens assembly of the seventh embodiment of the present invention includes, in order from an object side a1 to an image side a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, and a fifth lens element 50.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side surface 12 has a concave portion in a region 121 near the optical axis and a concave portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a concave portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a convex surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a concave portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a convex surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a concave portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fifth lens element 50 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the seventh embodiment is shown in table 7-1 below.
Table 7-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.394831E -03 | - 3.472317E -04 | 5.695724E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 5.740345E -06 | 7.956497E -04 | 4.276275E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.608690E -04 | - 3.090883E -05 | 1.582499E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 6.017284E -03 | 3.924062E -04 | 4.171332E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.545214E -03 | 1.576197E -03 | - 5.507806E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 7.050405E -03 | - 1.007095E -03 | 5.301460E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.818134E -02 | - 2.219238E -02 | 4.698582E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 9.325451E -03 | - 2.644199E -02 | 6.526581E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.678471E -02 | - 2.416586E -02 | 5.581579E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 9.029286E -03 | - 2.496884E -03 | 4.972266E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 7-2 below.
Table 7-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 7-3.
Tables 7 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (Whole focus of system, unit mm) | 11.31775531 |
| HFOV (half view angle, unit degree) | 8.976425931 |
| TTL (System Total Length, Unit mm) | 9.900047245 |
| Fno (aperture value) | 2.363149409 |
| RI (relative illuminance) | 0.8812 |
| CRA (chief ray angle, unit degree) | 15.24 |
On the other hand, as can be seen from fig. 26 to 28, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 26), astigmatism (in fig. 27, sagittal and meridional directions), and distortion aberration (fig. 28).
Further, this embodiment has the following effects compared to the first embodiment: the imaging quality of this embodiment is superior to that of the first embodiment (aberration, distortion figure), which is easier to manufacture than the first embodiment and therefore has a higher yield.
Eighth embodiment:
referring to fig. 29, the optical lens assembly of the eighth embodiment of the present invention includes, in order from an object side a1 to an image side a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, and a fifth lens element 50.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a convex portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has negative refractive power, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a convex portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a concave surface portion in the circumference vicinity area 422.
The fifth lens element 50 has a positive refractive index, and has a convex portion in a region 511 of the object-side surface 51 near the optical axis and a convex portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a concave surface portion in an area 522 near the circumference.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fifth lens element 50 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the eighth embodiment is shown in the following table 8-1.
Table 8-1:
in the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 8-2 below.
Table 8-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 8-3.
Tables 8 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (integral focal length of system, unit mm) | 11.32537031 |
| HFOV (half view angle, unit degree) | 8.980652129 |
| TTL (System Total Length, Unit mm) | 10.90000791 |
| Fno (aperture value) | 2.400207735 |
| RI (relative illuminance) | 0.948 |
| CRA (chief ray angle, unit degree) | 11.87 |
On the other hand, as can be seen from fig. 30 to 32, the optical imaging lens of the present embodiment has excellent performance in longitudinal spherical aberration (fig. 30), astigmatism (fig. 31, sagittal and meridional directions), and distortion aberration (fig. 32).
Further, this embodiment has the following effects compared to the first embodiment: the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Ninth embodiment:
referring to fig. 33, the optical lens of the ninth embodiment of the present invention includes an aperture stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, and a fifth lens element 50 in sequence from an object-side surface a1 to an image-side surface a 2.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side surface 12 has a concave portion in a region 121 near the optical axis and a concave portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a concave portion in a region 312 near the circumference. The image side surface 32 has a convex surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has negative refractive power, and has a concave portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a convex surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a concave portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a convex surface portion in a region 521 near the optical axis and a concave surface portion in a region 522 near the circumference.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fifth lens element 50 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the ninth embodiment is shown in the following table 9-1.
Table 9-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.591800E -02 | - 2.639523E -03 | 1.624097E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.053128E -02 | - 6.590491E -03 | 3.325764E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 6.257214E -02 | 9.477143E -03 | - 5.573112E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.299518E -02 | 1.263426E -02 | - 2.189401E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.278565E -03 | - 2.351123E -03 | - 1.495329E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.781002E -03 | - 2.382230E -04 | 3.554987E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 5.539648E -02 | - 7.667448E -03 | 7.119074E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.350684E -02 | - 1.657794E -05 | - 3.497296E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.941531E -02 | 1.372326E -04 | - 4.170827E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 5.703558E -02 | - 7.675676E -03 | 4.706221E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 9-2 below.
Table 9-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 9-3.
Tables 9 to 3:
| IH (image height, unit mm) | 2.3 |
| EFL (Whole focus of system, unit mm) | 7.295995613 |
| HFOV (half view angle, unit degree) | 17.4984064 |
| TTL (System Total Length, Unit mm) | 9.900009313 |
| Fno (aperture value) | 2.407242077 |
| RI (relative illuminance) | 0.835 |
| CRA (chief ray angle, unit degree) | 24.99 |
On the other hand, as can be seen from fig. 34 to 36, the optical imaging lens of the present embodiment has excellent performance in longitudinal spherical aberration (fig. 34), astigmatism (fig. 35, sagittal and meridional directions), and distortion aberration (fig. 36).
In addition, this embodiment has the following effects compared with the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Tenth embodiment:
referring to fig. 37, the optical lens assembly according to the tenth embodiment of the present invention includes, in order from an object side a1 to an image side a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, and a fifth lens element 50.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side 22 has a concave portion in the region 221 near the optical axis and a convex portion in the region 222 near the circumference.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a concave surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a convex portion in a region 412 near the circumference. The image side surface 42 has a convex surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a convex portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fifth lens element 50 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the tenth embodiment is shown in the following table 10-1.
TABLE 10-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000 E+00 | 8.338160E -03 | - 5.714422E -03 | 2.977927E -03 | - 4.021208E -04 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000 E+00 | - 1.069385E -02 | 3.338767E -03 | 1.649814E -03 | - 6.461817E -04 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000 E+00 | - 2.236436E -02 | 1.826548E -03 | - 2.108754E -03 | - 2.445071E -04 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000 E+00 | - 2.601187E -02 | 3.269832E -03 | - 5.362789E -03 | 1.003909E -03 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000 E+00 | - 1.040696E -01 | 1.860086E -02 | 0.000000E +00 | 0.000000E +00 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000 E+00 | - 9.581002E -02 | 1.742095E -02 | 0.000000E +00 | 0.000000E +00 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000 E+00 | 2.168858E -02 | - 4.665846E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000 E+00 | 6.450638E -02 | - 2.115909E -02 | 2.844383E -03 | - 1.397134E -04 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000 E+00 | - 4.288264E -02 | - 8.516722E -03 | 3.101334E -03 | - 2.653349E -04 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
| Fifth lens (image) Side surface) | - 2.290363E +00 | 0.000000 E+00 | - 5.588068E -02 | 1.073637E -02 | - 1.234685E -03 | 4.861536E -05 | 0.000000 E+00 | 0.000000 E+00 | 0.000000 E+00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 10-2 below.
Table 10-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 10-3.
Tables 10 to 3:
| IH (image height, unit mm) | 2.3 |
| EFL (Whole focus of system, unit mm) | 7.301200859 |
| HFOV (half view angle, unit degree) | 17.47650033 |
| TTL (System Total Length, Unit mm) | 9.278481572 |
| Fno (aperture value) | 2.404153062 |
| RI (relative illuminance) | 0.8285 |
| CRA (chief ray angle, unit degree) | 8.571 |
On the other hand, as can be seen from fig. 38 to 40, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 38), astigmatism (fig. 39, sagittal and meridional directions), and distortion aberration (fig. 40).
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Eleventh embodiment:
referring to fig. 41, the optical lens system of the eleventh embodiment of the invention includes, in order from an object side a1 to an image side a2, an aperture stop S1, a first lens element 10, a second lens element 20, a reflector M1, a third lens element 30, a fourth lens element 40, and a fifth lens element 50.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side 22 has a concave portion in the region 221 near the optical axis and a convex portion in the region 222 near the circumference.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a concave portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a convex portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a convex portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fifth lens element 50 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of this eleventh embodiment is shown in table 11-1 below.
Table 11-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.055688E -03 | - 1.564893E -04 | - 1.232490E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | - 4.777738E +00 | 0.000000E +00 | 8.030718E -03 | - 5.222074E -03 | 6.552011E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 5.870225E -02 | 4.556704E -03 | 4.349718E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 7.637746E -02 | 1.271118E -02 | - 8.741164E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 9.212740E -03 | 7.944253E -04 | 7.822457E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.727101E -02 | - 1.111096E -02 | 1.164069E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.002811E -01 | - 2.486522E -02 | 2.042214E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 4.426812E -02 | 1.187196E -02 | - 7.679733E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 4.009537E -02 | - 4.955352E -05 | - 2.187769E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | - 2.719604E +00 | 0.000000E +00 | 5.642665E -02 | - 8.202082E -03 | 4.395025E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 11-2 below.
Table 11-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 11-3.
Tables 11 to 3:
| IH (image height, unit mm) | 2.3 |
| EFL (Whole focus of system, unit mm) | 7.2986 |
| HFOV (half view angle, unit degree) | 17.5 |
| TTL (System Total Length, Unit mm) | 5 |
| Fno (aperture value) | 2.4 |
| RI (relative illuminance) | 0.8438 |
| CRA (chief ray angle, unit degree) | 14.43 |
On the other hand, as can be seen from fig. 42 to 44, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 42), astigmatism (fig. 43, sagittal and meridional directions), and distortion aberration (fig. 44).
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the aperture F # of this embodiment is smaller than that of the first embodiment (the smaller the value of F # is, the larger the aperture), the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Tenth itemThe second embodiment is as follows:
referring to fig. 45, the optical lens assembly according to the twelfth embodiment of the present invention includes, in order from the object side a1 to the image side a2, an aperture stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a reflector M1, a fourth lens element 40, and a fifth lens element 50.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a concave portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side 22 has a concave portion in the region 221 near the optical axis and a convex portion in the region 222 near the circumference.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a concave portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a convex surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a concave portion in a region 511 of the object-side surface 51 near the optical axis and a convex portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fifth lens element 50 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the twelfth embodiment is shown in the following table 12-1.
Table 12-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.237230E -03 | - 1.293905E -03 | 6.760912E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.894198E -03 | 1.944562E -03 | 1.287351E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 4.981790E -03 | - 7.662794E -03 | 7.878285E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.759439E -03 | - 6.272035E -03 | 1.159368E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 6.263737E -02 | 1.687886E -02 | - 1.387456E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 5.628671E -02 | 1.223913E -02 | - 1.027145E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.709764E -02 | - 6.732610E -04 | 4.201266E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.690876E -02 | - 2.808607E -03 | 5.741550E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.664264E -02 | - 4.321964E -03 | 6.611135E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.532432E -02 | - 3.681103E -03 | 5.140712E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 12-2 below.
Table 12-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 12-3.
Tables 12 to 3:
| IH (image height, unit mm) | 2.3 |
| EFL (Whole focus of system, unit mm) | 7.5262 |
| HFOV (half view angle, unit degree) | 17.5 |
| TTL (System Total Length, Unit mm) | 4.9 |
| Fno (aperture value) | 2.42 |
| RI (relative illuminance) | 0.8659 |
| CRA (chief ray angle, unit degree) | 11.3 |
On the other hand, as can be seen from fig. 46 to 48, the optical imaging lens of the present embodiment has excellent performances in longitudinal spherical aberration (fig. 46), astigmatism (fig. 47, sagittal and meridional directions), and distortion aberration (fig. 48).
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
The thirteenth embodiment:
referring to fig. 49, the optical lens assembly according to the thirteenth embodiment of the present invention includes, in order from an object side a1 to an image side a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a reflector M1, a fourth lens element 40, and a fifth lens element 50.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side 22 has a concave portion in the region 221 near the optical axis and a convex portion in the region 222 near the circumference.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a concave surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a concave surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a concave portion in a region 511 of the object-side surface 51 near the optical axis and a convex portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the fifth lens element 50 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the thirteenth embodiment is shown in table 13-1 below.
Table 13-1:
in the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 13-2 below.
Table 13-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 13-3.
Tables 13 to 3:
on the other hand, as can be seen from fig. 50 to 52, the optical imaging lens of the present embodiment has excellent performance in longitudinal spherical aberration (fig. 50), astigmatism (fig. 51, sagittal and meridional directions), and distortion aberration (fig. 52).
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Fourteenth embodiment:
referring to fig. 53, the optical lens assembly according to the fourteenth embodiment of the present invention includes, in order from the object side a1 to the image side a2, an aperture stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, a fifth lens element 50, and a sixth lens element 60.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a convex portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a concave surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a concave portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a convex surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a concave portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
The sixth lens element 60 has a positive refractive index, and has a concave portion in a region 611 near the optical axis on the object side 61 and a convex portion in a region 612 near the circumference. The image side surface 62 has a convex surface portion in the optical axis vicinity area 621 and a convex surface portion in the circumferential vicinity area 622.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the sixth lens element 60 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the fourteenth embodiment is shown in the following table 14-1.
TABLE 14-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.602229E -03 | 5.196044E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 7.295833E -04 | - 1.430742E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.031976E -03 | - 6.320376E -05 | - 1.443813E -06 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.706378E -03 | - 3.988794E -05 | - 1.296084E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.056845E -03 | 9.059694E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 6.225315E -03 | 1.847091E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 4.024277E -03 | - 3.090753E -04 | 4.346715E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 6.621959E -03 | 8.333879E -05 | 7.306985E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.741635E -02 | 6.930288E -03 | - 5.645607E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.581700E -02 | 1.176639E -02 | - 1.550581E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.822147E -02 | - 2.006097E -03 | 9.409814E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.500687E -03 | 2.184594E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the sixth lens element 60, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of the respective lenses and the widths of the respective air gaps in the optical imaging lens according to the present embodiment are shown in the following table 14-2.
Table 14-2:
the system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 14-3.
Tables 14 to 3:
on the other hand, as can be seen from fig. 54 to 56, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 54), astigmatism (fig. 55, sagittal and meridional directions), and distortion aberration (fig. 56).
Further, this embodiment has the following effects compared to the first embodiment: the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Fifteenth embodiment:
referring to fig. 57, the optical lens assembly according to the fifteenth embodiment of the present invention includes, in order from an object side a1 to an image side a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, a fifth lens element 50, and a sixth lens element 60.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a convex portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a concave surface portion in the circumference vicinity area 322.
The fourth lens element 40 has negative refractive power, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a convex portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a concave surface portion in the circumference vicinity area 422.
The fifth lens element 50 has a positive refractive index, and has a concave portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a convex surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
The sixth lens element 60 with negative refractive power has a concave portion in a region 611 near the optical axis on the object-side surface 61 and a concave portion in a region 612 near the circumference. The image side surface 62 has a convex surface portion in the optical axis vicinity area 621 and a convex surface portion in the circumferential vicinity area 622.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the sixth lens element 60 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens according to the fifteenth embodiment is shown in the following table 15-1.
Table 15-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.727603E -04 | - 1.010731E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.801430E -03 | - 8.796013E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.110517E -03 | - 5.231442E -05 | - 2.377125E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 7.568185E -04 | - 1.537422E -04 | - 7.709252E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.935563E -03 | 2.898805E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.866008E -02 | 3.759008E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.697710E -03 | - 6.129377E -03 | 3.514212E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.419032E -02 | - 4.091948E -03 | 1.499486E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.764215E -03 | - 3.933216E -03 | 5.670498E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 6.298004E -03 | - 1.572898E -03 | 2.395429E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.446219E -02 | 3.224591E -03 | - 2.089744E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.038922E -02 | 2.063434E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the sixth lens element 60, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 15-2 below.
Table 15-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 15-3.
Tables 15 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (Whole focus of system, unit mm) | 11.32648645 |
| HFOV (half view angle, unit degree) | 8.988074632 |
| TTL (System Total Length, Unit mm) | 9.900002357 |
| Fno (aperture value) | 2.39802922 |
| RI (relative illuminance) | 0.9493 |
| CRA (chief ray angle, unit degree) | 8.728 |
On the other hand, as can be seen from fig. 58 to 60, the optical imaging lens of the present embodiment has excellent performance in longitudinal spherical aberration (fig. 58), astigmatism (in sagittal and meridional directions in fig. 59), and distortion aberration (fig. 60).
Further, this embodiment has the following effects compared to the first embodiment: the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Sixteenth embodiment:
referring to fig. 61, the optical lens assembly according to the sixteenth embodiment of the present invention includes, in order from an object-side surface a1 to an image-side surface a2, an aperture stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, a fifth lens element 50, and a sixth lens element 60.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a convex portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a concave surface portion in the circumference vicinity area 322.
The fourth lens element 40 has negative refractive power, and has a concave portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a concave surface portion in the circumference vicinity area 422.
The fifth lens element 50 has a positive refractive index, and has a convex portion in a region 511 of the object-side surface 51 near the optical axis and a convex portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a concave surface portion in an area 522 near the circumference.
The sixth lens element 60 has a positive refractive index, and has a concave portion in a region 611 near the optical axis on the object side 61 and a convex portion in a region 612 near the circumference. The image side surface 62 has a convex surface portion in the optical axis vicinity area 621 and a convex surface portion in the circumferential vicinity area 622.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the sixth lens element 60 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens according to the sixteenth embodiment is shown in the following table 16-1.
Table 16-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.684494E -03 | - 8.252752E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.302219E -03 | - 1.477411E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 4.917747E -04 | - 1.845206E -04 | - 3.276141E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 6.466397E -04 | - 2.425617E -04 | - 5.923455E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.096366E -03 | 1.030670E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.536090E -03 | - 4.190214E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.819068E -02 | 6.053880E -03 | - 2.339705E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 4.141194E -02 | 2.295422E -02 | - 4.724196E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.794628E -02 | 8.691410E -03 | - 2.489349E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 6.378709E -03 | 6.837357E -04 | - 1.217407E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 4.982011E -03 | 2.063785E -03 | - 1.333238E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.931890E -03 | 1.958452E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the sixth lens element 60, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 16-2 below.
Table 16-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 16-3.
Tables 16 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (Whole focus of system, unit mm) | 11.3258561 |
| HFOV (half view angle, unit degree) | 8.989291307 |
| TTL (System Total Length, Unit mm) | 9.900005017 |
| Fno (aperture value) | 2.396099125 |
| RI (relative illuminance) | 0.9459 |
| CRA (chief ray angle, unit degree) | 9.67 |
On the other hand, as can be seen from fig. 62 to 64, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 61), astigmatism (in the sagittal and meridional directions in fig. 62), and distortion aberration (fig. 63).
Further, this embodiment has the following effects compared to the first embodiment: the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Seventeenth embodiment:
referring to fig. 65, the optical lens assembly of the seventeenth embodiment of the present invention includes, in order from an object-side surface a1 to an image-side surface a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, a fifth lens element 50, and a sixth lens element 60.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a concave surface portion in the circumference vicinity area 322.
The fourth lens element 40 has negative refractive power, and has a concave portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a concave portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a concave surface portion in an area 522 near the circumference.
The sixth lens element 60 has a positive refractive index, and has a concave portion in a region 611 near the optical axis on the object side 61 and a convex portion in a region 612 near the circumference. The image side surface 62 has a convex surface portion in the optical axis vicinity area 621 and a convex surface portion in the circumferential vicinity area 622.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the sixth lens element 60 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens according to the seventeenth embodiment is shown in the following table 17-1.
Table 17-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.323121E -03 | - 1.494564E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.624697E -03 | - 9.519187E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.306884E -03 | - 5.582449E -04 | 8.668555E -06 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 5.047553E -03 | 4.322198E -04 | - 1.312871E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.841665E -03 | 2.186321E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.788960E -02 | 1.128522E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 5.689628E -02 | 7.243379E -03 | 1.058488E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.299346E -01 | 3.560864E -02 | - 3.077470E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.191433E -01 | - 4.696652E -02 | 2.537094E -02 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 8.213928E -02 | - 4.434130E -02 | 9.556312E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 5.407830E -02 | - 7.780020E -03 | 5.605516E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 5.224459E -03 | 1.506753E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the sixth lens element 60, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 17-2 below.
Table 17-2:
system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 17-3.
Tables 17 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (Whole focus of system, unit mm) | 11.31614619 |
| HFOV (half view angle, unit degree) | 8.990919308 |
| TTL (System Total Length, Unit mm) | 9.200067319 |
| Fno (aperture value) | 2.383356589 |
| RI (relative illuminance) | 0.9305 |
| CRA (chief ray angle, unit degree) | 10.53 |
On the other hand, as can be seen from fig. 66 to 68, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 66), astigmatism (fig. 67, sagittal and meridional directions), and distortion aberration (fig. 68).
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Eighteenth embodiment:
referring to fig. 69, the optical lens assembly according to the eighteenth embodiment of the present invention includes, in order from an object side a1 to an image side a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a reflector M1, a fourth lens element 40, a fifth lens element 50, and a sixth lens element 60.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a convex portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a concave surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a convex portion in a region 412 near the circumference. The image side surface 42 has a concave surface portion in the optical axis vicinity area 421 and a concave surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a convex portion in a region 511 of the object-side surface 51 near the optical axis and a convex portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a concave surface portion in an area 522 near the circumference.
The sixth lens element 60 has a positive refractive index, and has a convex portion in a region 611 near the optical axis on the object side 61 and a convex portion in a region 612 near the circumference. The image side surface 62 has a concave portion in the optical axis vicinity area 621 and a concave portion in the circumferential vicinity area 622.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the sixth lens element 60 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of this eighteenth embodiment is shown in table 18-1 below.
TABLE 18-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.213179E -05 | - 1.043774E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.019624E -04 | 9.144599E -07 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.992335E -04 | 7.519205E -06 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.359335E -05 | - 1.581559E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 7.349536E -05 | - 5.566477E -06 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.241117E -03 | 2.547702E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.107910E -03 | 2.932148E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.945035E -03 | - 6.026402E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.565065E -03 | - 8.775364E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.041724E -03 | 3.684524E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.698571E -02 | 1.815174E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.297614E -02 | 2.410941E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the sixth lens element 60, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of the respective lenses and the widths of the respective air gaps in the optical imaging lens according to the present embodiment are shown in table 18-2 below.
Table 18-2:
the system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 18-3.
Tables 18 to 3:
| IH (image height, unit mm) | 1.792 |
| EFL (Whole focus of system, unit mm) | 11.33 |
| HFOV (half view angle, unit degree) | 9 |
| TTL (System Total Length, Unit mm) | 7.8 |
| Fno (aperture value) | 2.4 |
| RI (relative illuminance) | 0.9493 |
| CRA (chief ray angle, unit degree) | 11.08 |
On the other hand, as can be seen from fig. 70 to 72, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 70), astigmatism (fig. 71, sagittal and meridional directions), and distortion aberration (fig. 72).
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Nineteenth embodiment:
referring to fig. 73, an optical lens system according to the nineteenth embodiment of the present invention includes, in order from an object-side surface a1 to an image-side surface a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a fourth lens element 40, a fifth lens element 50, and a sixth lens element 60.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a convex portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a convex surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has a positive refractive index, and has a concave portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a convex surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
The sixth lens element 60 with negative refractive power has a concave portion in a region 611 near the optical axis on the object-side surface 61 and a concave portion in a region 612 near the circumference. The image side surface 62 has a concave surface portion in the optical axis vicinity area 621 and a convex surface portion in the circumferential vicinity area 622.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the sixth lens element 60 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens according to the nineteenth embodiment is shown in table 19-1 below.
Table 19-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.277958E -03 | 7.488550E -05 | - 8.682821E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.092624E -03 | - 8.729935E -04 | 7.884964E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 8.514250E -03 | - 3.857952E -04 | 7.992995E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.128206E -02 | 1.646403E -03 | - 2.660199E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.742660E -02 | 1.078126E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.327121E -02 | 1.623446E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.047790E -02 | - 1.985683E -03 | 3.423333E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | - 3.496093E +02 | 0.000000E +00 | - 1.775584E -02 | - 3.117001E -03 | 4.311350E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.453103E -03 | - 7.011976E -03 | 4.210611E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 2.083807E -02 | - 1.011384E -02 | 7.412089E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.785186E -02 | 1.905518E -03 | 1.104405E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (image) Side surface) | - 1.207490E +01 | 0.000000E +00 | - 3.244633E -02 | 4.015759E -03 | - 1.729893E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the sixth lens element 60, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 19-2 below.
Table 19-2:
the system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 19-3.
Tables 19 to 3:
| IH (image height, unit mm) | 2.3 |
| EFL (Whole focus of system, unit mm) | 7.294656514 |
| HFOV (half view angle, unit degree) | 17.50213992 |
| TTL (System Total Length, Unit mm) | 8.77144301 |
| Fno (aperture value) | 2.400579913 |
| RI (relative illuminance) | 0.8302 |
| CRA (chief ray angle, unit degree) | 22.52 |
On the other hand, as can be seen from fig. 74 to 76, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 74), astigmatism (fig. 75, sagittal and meridional directions), and distortion aberration (fig. 76).
Further, this embodiment has the following effects compared to the first embodiment: the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Twentieth embodiment:
referring to fig. 77, the optical lens assembly according to the twentieth embodiment of the present invention includes, in order from the object side a1 to the image side a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a reflector M1, a fourth lens element 40, a fifth lens element 50, and a sixth lens element 60.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side 22 has a concave portion in the region 221 near the optical axis and a convex portion in the region 222 near the circumference.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a convex surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a convex portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
The sixth lens element 60 has negative refractive power, and has a concave portion in a region 611 near the optical axis on the object-side surface 61 and a convex portion in a region 612 near the circumference. The image side surface 62 has a concave surface portion in the optical axis vicinity area 621 and a convex surface portion in the circumferential vicinity area 622.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the sixth lens element 60 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens of the twentieth embodiment is shown in the following table 20-1.
TABLE 20-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.082627E -03 | 3.778618E -03 | - 7.116784E -05 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.439692E -02 | 7.432939E -03 | - 1.166330E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 6.476473E -03 | - 1.590677E -02 | 6.324486E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.305104E -02 | - 1.902476E -02 | 2.840674E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 7.686608E -02 | 1.011476E -02 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 5.729437E -02 | 6.695329E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 1.479007E -02 | 2.021202E -03 | 8.390044E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 5.339079E -02 | 1.165924E -02 | - 8.340500E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 4.887943E -02 | - 7.544975E -04 | - 4.977288E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | 9.022761E -02 | - 1.153751E -02 | 9.421703E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 3.724350E -02 | - 1.097529E -02 | 9.056166E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (image) Side surface) | - 1.116935E +01 | 0.000000E +00 | 2.128696E -02 | - 4.926593E -03 | 5.012599E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the sixth lens element 60, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of each lens and the width of each air gap in the optical imaging lens according to the present embodiment are shown in table 20-2 below.
Table 20-2:
the system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 20-3.
Tables 20 to 3:
| IH (image height, unit mm) | 2.3 |
| EFL (Whole focus of system, unit mm) | 7.297 |
| HFOV (half view angle, unit degree) | 17.5 |
| TTL (System Total Length, Unit mm) | 5 |
| Fno (aperture value) | 2.42 |
| RI (relative illuminance) | 0.8183 |
| CRA (chief ray angle, unit degree) | 10.35 |
On the other hand, as can be seen from fig. 78 to 80, the optical imaging lens of the present embodiment is excellent in the longitudinal spherical aberration (fig. 78), astigmatism (in sagittal and meridional directions in fig. 79), and distortion aberration (fig. 80).
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
Twenty-first embodiment:
referring to fig. 81, the optical lens assembly according to the twenty-first embodiment of the present invention includes, in order from an object side a1 to an image side a2, a stop S1, a first lens element 10, a second lens element 20, a third lens element 30, a reflector M1, a fourth lens element 40, a fifth lens element 50, and a sixth lens element 60.
The first lens element 10 has a positive refractive index, and has a convex portion in a region 111 near the optical axis on the object-side surface 11 and a convex portion in a region 112 near the circumference. The image side 12 has a convex portion in a region 121 near the optical axis and a convex portion in a region 122 near the circumference.
The second lens element 20 has a negative refractive index, and has a convex portion in a region 211 of the object-side surface 21 near the optical axis and a concave portion in a region 212 near the circumference. The image side surface 22 has a concave surface portion in the optical axis vicinity region 221 and a concave surface portion in the circumference vicinity region 222.
The third lens element 30 has a positive refractive index, and has a convex portion in a region 311 of the object-side surface 31 near the optical axis and a convex portion in a region 312 near the circumference. The image side surface 32 has a concave surface portion in the optical axis vicinity area 321 and a convex surface portion in the circumference vicinity area 322.
The fourth lens element 40 has a positive refractive index, and has a convex portion in a region 411 of the object-side surface 41 near the optical axis and a concave portion in a region 412 near the circumference. The image side surface 42 has a convex surface portion in the optical axis vicinity area 421 and a convex surface portion in the circumference vicinity area 422.
The fifth lens element 50 has negative refractive power, and has a convex portion in a region 511 of the object-side surface 51 near the optical axis and a concave portion in a region 512 near the circumference. The image side surface 52 has a concave surface portion in an area 521 near the optical axis and a convex surface portion in an area 522 near the circumference.
The sixth lens element 60 has negative refractive power, and has a concave portion in a region 611 near the optical axis on the object-side surface 61 and a convex portion in a region 612 near the circumference. The image side surface 62 has a concave surface portion in the optical axis vicinity area 621 and a convex surface portion in the circumferential vicinity area 622.
Also included is a filter CF1, illustratively an IR cut filter, disposed between the sixth lens element 60 and the image plane I1. The light filter CF1 filters the light passing through the optical imaging lens to specific wavelength bands, such as: the infrared wave band is filtered, so that the wavelength of the infrared wave band which can not be seen by human eyes can not be imaged on the imaging surface I1 to influence the imaging quality.
The detailed data of the parameters of each aspherical surface of each lens (according to equation (a)) in the optical imaging lens according to the twenty-first embodiment is shown in the following table 21-1.
Table 21-1:
| noodle | K | A2 | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| First lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 7.594295E -04 | 1.627479E -04 | 1.682797E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| First lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 5.419412E -03 | 2.253369E -03 | - 2.205103E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.638745E -02 | 1.085075E -03 | - 3.722267E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Second lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 5.030367E -02 | 8.733707E -04 | - 1.136248E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.712144E -02 | 4.030976E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Third lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 2.994472E -02 | 2.898356E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 7.620427E -03 | - 4.507583E -03 | 1.684660E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fourth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.626410E -02 | 4.257718E -03 | 2.625152E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | - 4.294127E -02 | 1.557293E -02 | - 1.304960E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Fifth lens (image) Side surface) | 0.000000E +00 | 0.000000E +00 | - 3.529436E -02 | 1.382335E -02 | - 1.267886E -03 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (object) Side surface) | 0.000000E +00 | 0.000000E +00 | 1.530825E -02 | - 7.149381E -03 | 5.331097E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
| Sixth lens (image) Side surface) | - 1.775912E +01 | 0.000000E +00 | 3.074813E -02 | - 5.741746E -03 | 4.171678E -04 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 | 0.000000E +00 |
In the present embodiment, it is designed that an air gap exists among the first lens element 10, the second lens element 20, the third lens element 30, the fourth lens element 40, the fifth lens element 50, the sixth lens element 60, the filter CF1, and the image plane I1 of the image sensor. However, in other embodiments, any of the air gaps may not be present, such as: the surface profiles of the two opposing lenses are designed to correspond to each other and can be conformed to each other to eliminate the air gap therebetween.
The optical characteristics of the respective lenses and the widths of the respective air gaps in the optical imaging lens according to the present embodiment are shown in the following table 21-2.
Table 21-2:
the system parameters regarding the optical imaging lens of the present embodiment are shown in the following table 21-3.
Tables 21 to 3:
| IH (image height, unit mm) | 2.3 |
| EFL (Whole focus of system, unit mm) | 8.021 |
| HFOV (half view angle, unit degree) | 17.5 |
| TTL (System Total Length, Unit mm) | 5 |
| Fno (aperture value) | 2.4 |
| RI (relative illuminance) | 0.854 |
| CRA (chief ray angle, unit degree) | 14.67 |
On the other hand, as can be seen from fig. 82 to 84, the optical imaging lens of the present embodiment is excellent in the performance of longitudinal spherical aberration (fig. 82), astigmatism (fig. 83, sagittal and meridional directions), and distortion aberration (fig. 84).
Further, this embodiment has the following effects compared to the first embodiment: the lens length TTL of this embodiment is shorter than that of the first embodiment, the half field angle of this embodiment is larger than that of the first embodiment, the imaging quality of this embodiment is better than that of the first embodiment (aberration, distortion figure), and this embodiment is easier to manufacture than the first embodiment and therefore the yield is higher.
The values of the parameters for the twenty-one embodiment above were calculated in summary as shown in table 22 below.
Table 22 (1):
| condition | Lower limit of the range | Upper limit of the range | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
| HFOV | 3.000 | 25.000 | 8.980 | 8.981 | 8.984 | 17.500 | 17.496 | 8.990 |
| TTL | 6.000 | 20.000 | 9.401 | 9.900 | 9.400 | 8.765 | 8.700 | 9.900 |
| EFL/IH | 1.000 | 7.587 | 6.312 | 6.310 | 6.309 | 3.172 | 3.172 | 6.318 |
| EFL | 5.836 | 20.000 | 11.311 | 11.307 | 11.306 | 7.297 | 7.295 | 11.323 |
| TTL/EFL | 0.650 | 1.400 | 0.831 | 0.876 | 0.831 | 1.201 | 1.193 | 0.874 |
| IH | 1.434 | 5.000 | 1.792 | 1.792 | 1.792 | 2.300 | 2.300 | 1.792 |
| Fno | 1.872 | 2.991 | 2.341 | 2.356 | 2.493 | 2.400 | 2.402 | 2.385 |
| RI | 0.637 | 1.139 | 0.878 | 0.880 | 0.864 | 0.837 | 0.830 | 0.937 |
| CRA | 3.359 | 29.988 | 15.870 | 16.260 | 17.910 | 14.830 | 21.420 | 4.199 |
| ALT | 2.113 | 7.203 | 3.130 | 2.931 | 3.160 | 2.641 | 3.156 | 5.259 |
| Gaa | 1.832 | 8.969 | 3.182 | 3.966 | 2.717 | 4.780 | 3.604 | 3.641 |
| BFL | 0.800 | 5.245 | 3.088 | 3.004 | 3.523 | 1.344 | 1.939 | 1.000 |
| TTL/IH | 3.026 | 9.978 | 5.246 | 5.525 | 5.246 | 3.811 | 3.783 | 5.525 |
| HFOV/IH | 4.007 | 9.132 | 5.011 | 5.012 | 5.013 | 7.609 | 7.607 | 5.017 |
| Fno/IH | 0.835 | 1.669 | 1.306 | 1.315 | 1.391 | 1.043 | 1.045 | 1.331 |
| Fno/RI | 2.020 | 3.632 | 2.666 | 2.678 | 2.885 | 2.867 | 2.895 | 2.545 |
| EFL/ALT | 1.250 | 4.630 | 3.613 | 3.859 | 3.578 | 2.762 | 2.311 | 2.153 |
| EFL/Gaa | 1.170 | 5.934 | 3.555 | 2.851 | 4.161 | 1.527 | 2.024 | 3.110 |
| EFL/BFL | 2.073 | 13.591 | 3.662 | 3.765 | 3.209 | 5.430 | 3.762 | 11.319 |
| EFL/T1 | 5.123 | 29.498 | 6.473 | 23.880 | 24.582 | 6.655 | 6.403 | 9.260 |
| EFL/G12 | 15.446 | 137.358 | 48.900 | 84.285 | 114.465 | 73.132 | 73.013 | 113.289 |
| EFL/T2 | 4.501 | 45.330 | 11.411 | 5.627 | 5.685 | 27.051 | 25.907 | 37.775 |
| EFL/G23 | 1.358 | 136.419 | 3.833 | 2.951 | 113.683 | 1.698 | 2.143 | 113.291 |
| EFL/T3 | 2.598 | 34.656 | 28.880 | 25.278 | 27.494 | 7.715 | 8.820 | 4.948 |
| HFOV/T1 | 4.111 | 40.611 | 5.139 | 18.967 | 19.533 | 15.962 | 15.358 | 7.353 |
| HFOV/G12 | 24.683 | 216.616 | 38.822 | 66.945 | 90.953 | 175.399 | 175.120 | 89.952 |
| HFOV/T2 | 3.575 | 78.707 | 9.059 | 4.469 | 4.517 | 64.879 | 62.137 | 29.994 |
| HFOV/G23 | 1.875 | 211.500 | 3.043 | 2.344 | 90.332 | 4.072 | 5.139 | 89.953 |
| HFOV/T3 | 2.696 | 54.474 | 22.928 | 20.077 | 21.846 | 18.504 | 21.155 | 3.929 |
Table 22 (2):
table 22 (3):
table 22 (4):
table 22 (5):
table 22 (6):
table 22 (7):
table 22 (8):
the range-limiting relationships listed in the above tables can be optionally combined and applied in the embodiments of the present invention, and are not limited thereto.
The above-mentioned limiting relationship is based on the angle of the variation of each parameter and the relationship between the manufacturing technology threshold, the optical characteristic and the field angle, and the above-mentioned conditional expression is proposed, so that the optical imaging lens with good optical performance, shortened system length, and feasible technology and manufacture can be designed.
When HFOV ≦ 25, it means that the lens of the present invention has a smaller half field angle due to the structural design, so as to reduce the image distortion.
When TTL ≦ 20, it means that the lens of the present invention can reduce the lens volume to an appropriate size by using the structural design while maintaining good imaging quality, and further has a better configuration when TTL ≦ 15 is achieved by using the aspheric coefficient design.
When EFL ≦ 20, it means that the lens of the present invention has a proper focal length by the structural design and is suitable for most of the shooting occasions.
The optical imaging lens meets the following conditional expression that 2.0 ≦ EFL/IH; 5.123 ≦ EFL/T1; 15.446 ≦ EFL/G12; 4.501 ≦ EFL/T2; 1.358 ≦ EFL/G23; 2.598 ≦ EFL/T3, indicating a better configuration that yields good image quality while maintaining adequate yield. If any of the following conditions can be further satisfied, a more appropriate volume can be further maintained: 2.0 ≦ EFL/IH ≦ 7.587; 5.123 ≦ EFL/T1 ≦ 29.498; 15.446 ≦ EFL/G12 ≦ 137.358; 4.501 ≦ EFL/T2 ≦ 45.33; 1.358 ≦ EFL/G23 ≦ 136.419; 2.598 ≦ EFL/T3 ≦ 34.656.
When the optical imaging lens meets any one of the following conditional expressions, the length of the numerator can be relatively shortened when the denominator is unchanged, so that the effect of reducing the volume of the lens can be achieved: TTL/EFL ≦ 1.4; HFOV ≦ 25; TTL ≦ 20; EFL ≦ 20; IH ≦ 5; ALT ≦ 7.203; gaa ≦ 8.969; BFL ≦ 5.245; TTL/IH ≦ 9.978; HFOV/IH ≦ 9.132; Fno/IH ≦ 1.669; Fno/RI ≦ 3.632; EFL/ALT ≦ 4.63; EFL/Gaa ≦ 5.934; EFL/BFL ≦ 13.591; HFOV/T1 ≦ 40.611; HFOV/G12 ≦ 216.616; HFOV/T2 ≦ 78.707; HFOV/G23 ≦ 211.5; HFOV/T3 ≦ 54.474 … … …. If any one of the following conditional expressions can be further met, better imaging quality can be achieved: 3 < HFOV < 25; 6 ≦ TTL ≦ 20; 5.836 ≦ EFL ≦ 20; 0.65 ≦ TTL/EFL ≦ 1.4; 1.434 ≦ IH ≦ 5; 2.113 ALT 7.203; 1.832 ≦ Gaa ≦ 8.969; 0.8 ≦ BFL ≦ 5.245; 3.026 ≦ TTL/IH ≦ 9.978; 4.007 ≦ HFOV/IH ≦ 9.132; 0.835 ≦ Fno/IH ≦ 1.669; 2.02 ≦ Fno/RI ≦ 3.632; 1.25 ≦ EFL/ALT ≦ 4.63; 1.17 ≦ EFL/Gaa ≦ 5.934; 2.073 ≦ EFL/BFL ≦ 13.591; 4.111 ≦ HFOV/T1 ≦ 40.611; 24.683 ≦ HFOV/G12 ≦ 216.616; 3.575 ≦ HFOV/T2 ≦ 78.707; 1.875 ≦ HFOV/G23 ≦ 211.5; 2.696 ≦ HFOV/T3 ≦ 54.474.
On the other hand, if all the lenses are made of plastic, the advantages of facilitating aspheric surface manufacture, reducing cost and lightening lens weight can be more prominent.
In view of the unpredictability of the optical system design, the configuration of the present invention preferably enables the lens length of the present invention to be shortened, the available aperture to be increased, the field angle to be increased, the imaging quality to be improved, or the assembly yield to be improved, thereby improving the disadvantages of the prior art.
In view of the unpredictability of the optical system design, the configuration of the present invention preferably enables the lens length of the present invention to be shortened, the available aperture to be increased, the field angle to be increased, the imaging quality to be improved, or the assembly yield to be improved, thereby improving the disadvantages of the prior art.
In summary, the longitudinal spherical aberration, the astigmatic aberration, and the distortion of the embodiments of the present invention all conform to the usage specifications. In addition, the three kinds of off-axis light with red, green and blue representing wavelengths at different heights are all concentrated near the imaging point, and the deviation amplitude of each curve can show that the deviation of the imaging point of the off-axis light at different heights can be controlled, so that the spherical aberration, the aberration and the distortion suppression capability are good. Further referring to the imaging quality data, the distances between the three representative wavelengths of red, green and blue are also very close, showing that the present invention has good concentration of light of different wavelengths and excellent dispersion suppression capability in various states. In summary, the present invention can generate excellent image quality by the design and mutual matching of the lenses.
Therefore, the present invention can shorten the lens length to achieve the goal of miniaturization while maintaining good optical performance.
Based on the optical imaging lens, the invention also provides an electronic device using the optical imaging lens. The first preferred embodiment of the electronic device comprises: a casing and an image module installed in the casing. The electronic device is described herein by way of example only as a mobile phone, but the type of the electronic device is not limited thereto, and the electronic device may also include, but is not limited to, a camera, a tablet computer, a Personal Digital Assistant (PDA), and the like.
The image module includes an optical imaging lens as described above, and the optical imaging lens according to the foregoing first embodiment is exemplarily selected here, a lens barrel for the optical imaging lens, a module housing unit for the lens barrel, a substrate for the module housing unit, and an image sensor disposed on an image side of the optical imaging lens. The imaging surface is formed on the image sensor.
It should be noted that although the present embodiment shows the optical filter, in other embodiments, the structure of the optical filter may be omitted, and the need of the optical filter is not limited, and the chassis, the lens barrel, and/or the module rear seat unit may be formed by assembling a single component or multiple components, and need not be limited thereto; next, the image sensor used in this embodiment is directly connected to the substrate in a Chip On Board (COB) Package manner, and the difference between the Chip on Board Package (CSP) and the conventional CSP is that the CSP does not need to use a cover glass (cover glass), so that the cover glass does not need to be disposed in front of the image sensor in the optical imaging lens, but the invention is not limited thereto.
The two-piece lens with overall refractive index is exemplarily disposed in the lens barrel in a manner that an air gap exists between the two lenses respectively.
The module backseat unit comprises a lens backseat for the lens cone to be arranged and an image sensor backseat. The lens cone is coaxially arranged with the lens backseat along an axis, the lens cone is arranged at the inner side of the lens backseat, the image sensor backseat is positioned between the lens backseat and the image sensor, and the image sensor backseat is attached to the lens backseat.
Since the length of the optical imaging lens is only 2.479338363mm, the electronic device can be designed to be thinner and shorter, and still provide good optical performance and imaging quality. Therefore, the present embodiment not only has the economic benefit of reducing the consumption of the raw materials of the housing, but also can meet the design trend of light, thin, short and small products and the consumption demand.
The electronic device of the second preferred embodiment differs from the electronic device of the first preferred embodiment mainly in that: the lens backseat is provided with a first seat body unit, a second seat body unit, a coil and a magnetic assembly. The first base unit is attached to the outer side of the lens barrel and arranged along the optical axis, and the second base unit is arranged around the outer side of the first base unit along the optical axis. The coil is arranged between the outer side of the first seat unit and the inner side of the second seat unit. The magnetic assembly is arranged between the outer side of the coil and the inner side of the second seat unit.
The first base unit can carry the lens barrel and the optical imaging lens arranged in the lens barrel to move along the optical axis. The other component structures of the eighth embodiment of the electronic device are similar to those of the electronic device of the first embodiment, and are not described again here.
Similarly, since the optical imaging lens has a length of only 2.479338363mm, the portable electronic device can be designed to be thinner and smaller, and still provide good optical performance and imaging quality. Therefore, the present embodiment not only has the economic benefit of reducing the consumption of the raw materials of the housing, but also can meet the design trend of light, thin, short and small products and the consumption demand.
As can be seen from the above, the electronic device and the optical imaging lens of the invention maintain good optical performance and effectively shorten the lens length by controlling the detailed structure and/or the refractive index design of each of the two lenses.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (20)
1. An optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side along an optical axis, wherein the first lens to the fifth lens respectively comprise an object side surface facing the object side and allowing imaging light to pass and an image side surface facing the image side and allowing the imaging light to pass; the method is characterized in that:
the first lens element has positive refractive index;
the object side surface of the fifth lens is provided with a concave surface part in the area near the optical axis, and the image side surface of the fifth lens is provided with a convex surface part in the area near the circumference;
the optical imaging lens has only five lenses with refractive indexes and satisfies the following conditional expressions:
3.000≦HFOV≦25.000；
0.835≦Fno/IH≦1.669；
the HFOV is a half field angle, Fno is an aperture value of the optical imaging lens, and IH is an image height of the system imaged on an imaging plane.
2. An optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side along an optical axis, wherein the first lens to the fifth lens respectively comprise an object side surface facing the object side and allowing imaging light to pass and an image side surface facing the image side and allowing the imaging light to pass; the method is characterized in that:
the first lens element has positive refractive index, and the image side surface of the first lens element is provided with a convex surface portion in a region near the circumference;
the object side surface of the second lens is provided with a convex surface part in the area near the circumference, and the image side surface of the second lens is provided with a concave surface part in the area near the circumference;
the image side surface of the fifth lens is provided with a convex surface part in the area near the circumference;
the optical imaging lens has only five lenses with refractive indexes and satisfies the following conditional expressions:
3.000≦HFOV≦25.000；
HFOV/IH≦9.132；
the HFOV is a half field angle, and the IH is an image height of the system imaged on an imaging plane.
3. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 0.442 ≦ ALT/Gaa ≦ 2.304, where ALT is a sum of thicknesses of the first lens to the fifth lens on the optical axis, and Gaa is a sum of air gaps between the first lens and the fifth lens on the optical axis.
4. The optical imaging lens according to claim 1 or 2, characterized in that: the image side surface of the third lens is provided with a concave surface part in the area near the circumference.
5. The optical imaging lens according to claim 1 or 2, characterized in that: the third lens element has a positive refractive index.
6. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies an EFL of less than or equal to 5.836 and less than or equal to 20.000, wherein the EFL is an effective focal length of the optical imaging lens.
7. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 1.273 ≦ Gaa/T3 ≦ 14.206, Gaa being a sum of air gaps between the first lens and the fifth lens on the optical axis, and T3 being a thickness of the third lens on the optical axis.
8. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies EFL/IH which is more than or equal to 2.000, and EFL is the effective focal length of the optical imaging lens.
9. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 5.123 ≦ EFL/T1 ≦ 29.498, EFL being a system effective focal length of the optical imaging lens, and T1 being a thickness of the first lens on the optical axis.
10. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies the condition that EFL/BFL is less than or equal to 13.591, EFL is the effective focal length of the optical imaging lens, and BFL is the length from the image side surface of the fifth lens to the imaging surface on the optical axis.
11. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 4.501 ≦ EFL/T2 ≦ 45.330, EFL being a system effective focal length of the optical imaging lens, and T2 being a thickness of the second lens on the optical axis.
12. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 1.358 ≦ EFL/G23 ≦ 136.419, EFL being a system effective focal length of the optical imaging lens, and G23 being a distance between the image-side surface of the second lens and the object-side surface of the third lens on the optical axis.
13. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 2.598 ≦ EFL/T3 ≦ 34.656, EFL being a system effective focal length of the optical imaging lens, and T3 being a thickness of the third lens on the optical axis.
14. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 4.111 ≦ HFOV/T1 ≦ 40.611, T1 being the thickness of the first lens on the optical axis.
15. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies the requirements of 3.575 and 78.707 for HFOV/T2, and T2 is the thickness of the second lens on the optical axis.
16. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 1.875 ≦ HFOV/G23 ≦ 211.500, and G23 is a distance between the image-side surface of the second lens and the object-side surface of the third lens on the optical axis.
17. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 0.492 ≦ ALT/G23 ≦ 72.033, ALT being a sum of thicknesses of the first lens to the fifth lens on the optical axis, G23 being a distance between the image-side surface of the second lens and the object-side surface of the third lens on the optical axis.
18. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 0.536/G34/50.868, where ALT is a sum of thicknesses of the first lens element to the fifth lens element on the optical axis, and G34 is a distance between the image-side surface of the third lens element and the object-side surface of the fourth lens element on the optical axis.
19. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies 0.549 ≦ BFL/T1 ≦ 9.192, BFL being a length from the image side surface of the fifth lens element to an image plane on the optical axis, and T1 being a thickness of the first lens element on the optical axis.
20. The optical imaging lens according to claim 1 or 2, characterized in that: the optical imaging lens further satisfies the conditions that BFL/T2 is less than or equal to 17.486, BFL is the length from the image side surface of the fifth lens to an imaging surface on the optical axis, and T2 is the thickness of the second lens on the optical axis.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627862.5A CN108761728B (en) | 2014-09-05 | 2014-09-05 | Optical imaging lens and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410452628.5A CN105467562A (en) | 2014-09-05 | 2014-09-05 | Optical imaging lens and electronic device |
| CN201810627862.5A CN108761728B (en) | 2014-09-05 | 2014-09-05 | Optical imaging lens and electronic device |
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| CN201410452628.5A Division CN105467562A (en) | 2014-09-05 | 2014-09-05 | Optical imaging lens and electronic device |
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| CN108761728A CN108761728A (en) | 2018-11-06 |
| CN108761728B true CN108761728B (en) | 2021-04-09 |
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| CN201810627863.XA Active CN108761729B (en) | 2014-09-05 | 2014-09-05 | Optical imaging lens and electronic device |
| CN201810622249.4A Pending CN109375339A (en) | 2014-09-05 | 2014-09-05 | Optical imaging lens and electronic device |
| CN201410452628.5A Pending CN105467562A (en) | 2014-09-05 | 2014-09-05 | Optical imaging lens and electronic device |
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| CN201810622249.4A Pending CN109375339A (en) | 2014-09-05 | 2014-09-05 | Optical imaging lens and electronic device |
| CN201410452628.5A Pending CN105467562A (en) | 2014-09-05 | 2014-09-05 | Optical imaging lens and electronic device |
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| TWI571653B (en) | 2016-02-26 | 2017-02-21 | 大立光電股份有限公司 | Optical imaging lens assembly, image capturing unit and electronic device |
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| TWI607238B (en) | 2016-08-22 | 2017-12-01 | 大立光電股份有限公司 | Optical imaging system, imaging apparatus and electronic device |
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| JP7396788B2 (en) * | 2018-08-08 | 2023-12-12 | 東京晨美光学電子株式会社 | imaging lens |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105467562A (en) | 2016-04-06 |
| CN108761728A (en) | 2018-11-06 |
| CN108761729B (en) | 2021-04-09 |
| CN109407270A (en) | 2019-03-01 |
| CN109375339A (en) | 2019-02-22 |
| CN108761729A (en) | 2018-11-06 |
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