Camera lens, camera device, and portable device

Abstract

Provided is a camera lens that is small in size and has high optical performance. A camera lens (OS) is composed of, in order from the object side toward the image plane side, a first lens (L1) having a negative refractive power, a second lens (L2), a third lens (L3) having a positive refractive power, a fourth lens (L4) having a negative refractive power, a fifth lens (L5) having a positive refractive power, and a sixth lens (L6) having a negative refractive power. The camera lens satisfies the following condition: at least one of the first lens (L1) to the sixth lens (L6) satisfies 10 < νd < 20 and 1.65 < nd < 1.76, where νd is the Abbe number with respect to the d line, and nd is the refractive index with respect to the d line.

Description

Technical Field

[0001] This invention relates to camera lenses, camera devices, and portable devices. More specifically, this invention relates to camera lenses that image an optical image of a subject onto a camera element such as a CCD image sensor or a CMOS image sensor, camera devices equipped with such camera lenses, and portable devices equipped with such camera devices. Background Technology

[0002] In recent years, portable devices such as smartphones and mobile phones have become widespread. Camera modules and other imaging devices integrated into these portable devices contain camera lenses that create optical images of the subject. Camera lenses are not only found in portable devices such as smartphones, tablets, mobile phones, and personal digital assistants (PDAs), but also in information devices such as game consoles, personal computers (PCs), and robots. Furthermore, they are also found in various devices such as home appliances with added camera functionality, surveillance cameras, and automobiles.

[0003] For example, Patent Document 1 below discloses a camera lens mounted in a smartphone.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2013-246217 Summary of the Invention

[0007] The problem the invention aims to solve

[0008] With the increasing performance and miniaturization of camera elements such as CCD and CMOS image sensors, there is a growing demand for higher performance in camera lenses used in these devices. For example, as camera elements become more sophisticated, camera lenses in smartphones require both small size and high resolution.

[0009] The purpose of this invention is to provide a camera lens that is small in size and has high optical performance.

[0010] Solution to the problem

[0011] The present invention for achieving the above objectives includes, for example, the methods shown below.

[0012] (First item)

[0013] A camera lens, from the object side to the image plane side, consists of a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in sequence. The first lens has negative refractive power, the third lens has positive refractive power, the fourth lens has negative refractive power, the fifth lens has positive refractive power, and the sixth lens has negative refractive power. Furthermore, the camera lens satisfies the following conditions.

[0014] At least one of the first lens to the sixth lens satisfies:

[0015] 10 < νd < 20 and 1.65 <nd<1.76,

[0016] in,

[0017] νd is the Abbe number relative to the d-line.

[0018] nd is the refractive index relative to the d-line.

[0019] According to the camera lens described in the first item, high optical performance can be achieved in a small size.

[0020] (Second item)

[0021] According to the camera lens described in the first item, the following conditions must also be met:

[0022] At least one of the first lens to the sixth lens satisfies:

[0023] 11 < νd < 18 and 1.67 <nd<1.73。

[0024] (Third item)

[0025] According to the camera lens described in item 1 or 2, the following conditions must also be met:

[0026] At least one of the first lens to the sixth lens satisfies:

[0027] nd≧-0.0078×νd+1.78,

[0028] nd≦-0.0078×νd+1.84.

[0029] (Item 4)

[0030] According to any one of the first to third claims, the lens among the first to sixth lenses that satisfies the condition is the second lens, the fourth lens, and the sixth lens.

[0031] Furthermore, according to any one of the first to fourth items, by appropriately satisfying the conditions described below, it is possible to achieve higher optical performance in a small size, and to realize a high-resolution camera lens that both well balances wide-angle, low-background, and low F-number requirements while well correcting various aberrations.

[0032] (Item 5)

[0033] The camera lens according to any one of the first to fourth items, wherein the first lens satisfies the following condition:

[0034] -3.5 <f1 / f<-2,

[0035] in,

[0036] f is the focal length of the entire camera lens system.

[0037] f1 is the focal length of the first lens.

[0038] According to the camera lens described in item 5, it is possible to effectively achieve ease of wide-angle viewing and good correction of image plane curvature and distortion.

[0039] (Item 6)

[0040] The camera lens according to any one of the first to fifth items, wherein the second lens satisfies the following condition:

[0041] 5<|f2| / f,

[0042] in,

[0043] f is the focal length of the entire camera lens system.

[0044] f2 is the focal length of the second lens.

[0045] According to the sixth item, the camera lens can shorten the overall optical length and effectively correct image plane curvature while correcting chromatic aberration.

[0046] (Seventh item)

[0047] The camera lens according to any one of items 1 to 6, wherein the third lens satisfies the following condition:

[0048] 0.5 <f3 / f<2,

[0049] in,

[0050] f is the focal length of the entire camera lens system.

[0051] f3 is the focal length of the third lens.

[0052] According to the camera lens described in item 7, low-background imaging can be achieved, and spherical aberration and coma aberration can be well corrected.

[0053] (Item 8)

[0054] The camera lens according to any one of items 1 to 7, wherein the fourth lens satisfies the following condition:

[0055] -15 <f4 / f<-3,

[0056] in,

[0057] f is the focal length of the entire camera lens system.

[0058] f4 is the focal length of the fourth lens.

[0059] The camera lens described in item 8 can shorten the overall optical length while correcting chromatic aberration and effectively correcting image plane curvature.

[0060] (Item 9)

[0061] The camera lens according to any one of items 1 to 8, wherein the fifth lens satisfies the following condition:

[0062] 1.5 <f5 / f<3.5

[0063] in,

[0064] f is the focal length of the entire camera lens system.

[0065] f5 is the focal length of the fifth lens.

[0066] According to the camera lens described in item 9, a low-profile design can be achieved, and image plane curvature and distortion can be well corrected.

[0067] (Item 10)

[0068] The camera lens according to any one of items 1 to 9, wherein the sixth lens satisfies the following condition:

[0069] -5 <f6 / f<-1.5,

[0070] in,

[0071] f is the focal length of the entire camera lens system.

[0072] f6 is the focal length of the sixth lens.

[0073] According to the camera lens described in item 10, it is possible to properly ensure the back focal length while maintaining a low profile.

[0074] (Item 11)

[0075] The camera lens according to any one of items 1 to 10 also meets the following conditions:

[0076] 0.4 <d12 / f<2.5,

[0077] in,

[0078] f is the focal length of the entire camera lens system.

[0079] d12 is the distance on the optical axis between the first lens and the second lens.

[0080] According to the camera lens described in item eleven, it is able to effectively correct chromatic aberration, image plane curvature, and astigmatism of the camera lens.

[0081] (Item 12)

[0082] The camera lens according to any one of items 1 to 11 also meets the following conditions:

[0083] 20<|νd2-νd3|<70,

[0084] νd5>νd6,

[0085] νd5>νd4,

[0086] in,

[0087] νd2 is the Abbe number of the second lens relative to the d-line.

[0088] νd3 is the Abbe number of the third lens relative to the d-line.

[0089] νd4 is the Abbe number of the fourth lens relative to the d-line.

[0090] νd5 is the Abbe number of the fifth lens relative to the d-line.

[0091] νd6 is the Abbe number of the sixth lens relative to the d-line.

[0092] According to the camera lens described in item 12, the chromatic aberration of the camera lens can be well corrected.

[0093] (Item 13)

[0094] The camera lens according to any one of items 1 to 12 also satisfies the following condition:

[0095] 1.2 <r11 / r12<3.0,

[0096] in,

[0097] r11 is the radius of curvature of the object-side surface of the sixth lens.

[0098] r12 is the radius of curvature of the image plane side of the sixth lens.

[0099] The camera lens described in item thirteen is capable of effectively correcting image plane curvature.

[0100] (Item Fourteen)

[0101] The camera lens according to any one of items 1 to 13 also has a lens that is substantially non-refractive.

[0102] (Item 15)

[0103] The camera device comprises: a camera lens according to any one of claims 1 to 14; and

[0104] A camera element that outputs a camera signal corresponding to an optical image formed by the camera lens.

[0105] (Item 16)

[0106] A portable device equipped with the camera device as described in item 15.

[0107] The effects of the invention

[0108] According to the present invention, it is possible to provide a camera lens that is small in size and has high optical performance. Attached Figure Description

[0109] Figure 1 This is a cross-sectional view showing a first structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the first embodiment.

[0110] Figure 2 This is a cross-sectional view showing a second structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the second embodiment.

[0111] Figure 3 This is a cross-sectional view showing a third structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the third embodiment.

[0112] Figure 4 This is a cross-sectional view showing a fourth structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the fourth embodiment.

[0113] Figure 5 This is a cross-sectional view showing a fifth structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the fifth embodiment.

[0114] Figure 6 This is a cross-sectional view showing a sixth structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the sixth embodiment.

[0115] Figure 7 This is a cross-sectional view showing a seventh structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the seventh embodiment.

[0116] Figure 8 This is a cross-sectional view showing an eighth structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the eighth embodiment.

[0117] Figure 9 This is a cross-sectional view showing a ninth structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the ninth embodiment.

[0118] Figure 10 This is a cross-sectional view showing a tenth structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the tenth embodiment.

[0119] Figure 11 This is a cross-sectional view showing an eleventh structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the eleventh embodiment.

[0120] Figure 12 This is a cross-sectional view showing a twelfth structural example of a camera lens according to an embodiment of the present invention, and is a cross-sectional view of the lens structure corresponding to the twelfth embodiment.

[0121] Figure 13 This is a schematic diagram showing the structure of a camera device according to one embodiment of the present invention.

[0122] Figure 14 This is a schematic diagram of a smartphone-type portable device equipped with a camera device according to an embodiment of the present invention.

[0123] Figure 15 It is a graph showing the optical properties of the material used in the camera lens according to an embodiment of the present invention, and a graph showing the relationship between refractive index and Abbe number.

[0124] Figure 16 This is a diagram showing the various aberrations of the camera lens according to the first embodiment of the present invention.

[0125] Figure 17 This is a diagram showing the various aberrations of the camera lens according to the second embodiment of the present invention.

[0126] Figure 18 This is a diagram showing the various aberrations of the camera lens according to the third embodiment of the present invention.

[0127] Figure 19 This is a diagram showing the various aberrations of the camera lens according to the fourth embodiment of the present invention.

[0128] Figure 20 This is a diagram showing the various aberrations of the camera lens according to the fifth embodiment of the present invention.

[0129] Figure 21 This is a diagram showing the various aberrations of the camera lens according to the sixth embodiment of the present invention.

[0130] Figure 22 This is a diagram showing the various aberrations of the camera lens according to the seventh embodiment of the present invention.

[0131] Figure 23 This is a diagram showing the various aberrations of the camera lens according to the eighth embodiment of the present invention.

[0132] Figure 24 This is a diagram showing the various aberrations of the camera lens according to the ninth embodiment of the present invention.

[0133] Figure 25 This is a diagram showing the various aberrations of the camera lens according to the tenth embodiment of the present invention.

[0134] Figure 26 This is a diagram showing the various aberrations of the camera lens according to the eleventh embodiment of the present invention.

[0135] Figure 27 This is a diagram showing the various aberrations of the camera lens according to the twelfth embodiment of the present invention. Specific Implementation

[0136] In the following description, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Furthermore, in the following description and drawings, the same reference numerals denote the same or similar components, and therefore repeated descriptions relating to the same or similar components are omitted.

[0137] Figure 1 This is a cross-sectional view showing a first structural example of a camera lens according to an embodiment of the present invention. The first structural example corresponds to the lens structure of the first embodiment described later. Similarly, cross-sectional views showing the second to twelfth structural examples of a camera lens according to an embodiment of the present invention are shown in [the original text]. Figures 2 to 12 As shown in the image.

[0138] exist Figures 1 to 12In the diagram, the symbol Ri indicates that the lens surface closest to the object side is taken as the first surface, and the radius of curvature of the i-th surface is assigned by sequentially increasing the subscript i towards the image plane. The symbol Di indicates the surface spacing along the optical axis Zop between the i-th surface and the (i+1)-th surface. Figures 1 to 12 As shown, when the camera lens has an aperture stop St, the subscript i in the symbols Ri and Di increases sequentially, treating the face of the aperture stop St as a face as well. The symbol ri represents the radius of curvature of the i-th face when the face of the aperture stop St is not counted as a face. Furthermore, in the first to twelfth structural examples, the basic structure of the camera lens is the same, therefore, it will be referred to as... Figure 1 The camera lens shown in the first structural example will be used as an example for explanation.

[0139] like Figure 1 As shown, according to one embodiment of the present invention, a camera lens OS (OS1) comprises, sequentially along the optical axis Zop from the object side toward the image plane side: a first lens L1 having negative refractive power, a second lens L2, a third lens L3 having positive refractive power, a fourth lens L4 having negative refractive power, a fifth lens L5 having positive refractive power, and a sixth lens L6 having negative refractive power. The camera lens OS images the optical image of the subject onto the image plane Im. The refractive power of the second lens L2, depending on the structural example, is either positive or negative.

[0140] An aperture stop St can be positioned between the first lens L1 and the second lens L2. Various optical components CG can be positioned between the sixth lens L6 and the image plane Im. The optical components CG can be, for example, a flat glass cover plate. The optical components CG can be optical components with various filtering effects, such as those coated with anti-reflection coatings, infrared (IR) cutoff filters, ultraviolet (UV) cutoff filters, and neutral density (ND) filters. Alternatively, a coating can be applied to the sixth lens L6 instead of the optical components CG, thereby allowing the sixth lens L6 to achieve the same effect as the optical components CG.

[0141] According to one embodiment of the present invention, a camera lens OS can be mounted in a camera device such as a camera module. Examples of camera devices include camera modules, action cameras, wearable cameras, camcorders, mirrorless cameras, and reflex cameras. Furthermore, such a camera device equipped with a camera lens OS can be mounted in various devices such as smartphones. Examples of devices equipped with a camera device include smartphones, tablets, mobile phones, portable devices such as personal digital assistants (PDAs), game consoles, personal computers (PCs), and robots, home appliances with added camera functionality, surveillance cameras, and automobiles.

[0142] Figure 13 This is a schematic diagram illustrating the structure of a camera device according to an embodiment of the present invention. The camera device 20 according to an embodiment of the present invention includes: a camera lens OS according to an embodiment of the present invention; an image sensor 21 that outputs an image signal corresponding to an optical image formed by the camera lens OS; and an image processing device 22 that generates an image based on the image signal input from the image sensor 21. The image sensor 21 is disposed on the imaging plane (image plane Im) of the camera lens OS.

[0143] The image sensor 21 may be, for example, a CCD image sensor or a CMOS image sensor. The image processing device 22 may be, for example, an image processing engine mounted as an integrated circuit (LSI). The image processing device 22 may also be connected to the image sensor 21 via a data bus or network and configured externally to the image processing device 20. The image processing device 22 can have any structure; as described later, for example, in the case where the image processing device 20 is mounted in a device such as a smartphone or PC equipped with a CPU, the CPU mounted in these devices may be used instead of the image processing device 22 to generate the image.

[0144] Figure 14 This is a schematic diagram of a smartphone-type portable device equipped with a camera device according to an embodiment of the present invention. The portable device 30 according to an embodiment of the present invention includes a camera device 20 according to an embodiment of the present invention. In the illustrated configuration, the camera lens OS is arranged in the main body of the portable device 30 with the object-side surface of the first lens L1 facing outwards.

[0145] The function and effect of the OS of the camera lens as described above will be explained in more detail. Figure 15 It is a graph showing the optical properties of the material used in the camera lens according to an embodiment of the present invention, and a graph showing the relationship between refractive index and Abbe number.

[0146] In a camera lens OS according to an embodiment of the present invention, at least one of the first lens L1 to the sixth lens L6 is made of a material used in... Figure 15 The thermoplastic resin exhibits optical properties within specific areas of the graph shown. Thus, a camera lens OS according to one embodiment of the present invention can achieve high optical performance in a small size.

[0147] In the illustrated optical property graph, the vertical axis represents the refractive index nd relative to the d-line, and the horizontal axis represents the Abbe number νd relative to the d-line. Data plotted with black dots (●) in the graph represents the thermoplastic resin used in the material of the camera lens OS according to one embodiment, while data plotted with crosses (×) represents existing thermoplastic resins used as lens materials to date. For example, the thermoplastic resin represented by black dots (●) or crosses (×) can be polyester resin. Conditions A and B, shown by dashed lines in the graph, are as follows.

[0148] Conditional expression A: nd≥-0.0078×νd+1.78

[0149] Condition B: nd ≤ -0.0078 × νd + 1.84

[0150] In one embodiment, the optical property data of the thermoplastic resin used for the lens material is the data within the rectangular area of ​​a graph whose optical properties satisfy the following conditional expression (1). That is, in the camera lens OS, at least one of the first lens L1 to the sixth lens L6 is formed using a material that satisfies the following conditional expression (1).

[0151] 10 < νd < 20 and 1.65 <nd<1.76 (1)

[0152] Preferably, the optical property data of the thermoplastic resin used for the lens material is the data within the rectangular area of ​​the curve graph in which the optical properties satisfy the following condition (2). That is, at least one of the first lens L1 to the sixth lens L6 is formed using a material that satisfies the following condition (2).

[0153] 11 < νd < 18 and 1.67 <nd<1.73 (2)

[0154] More preferably, the optical property data of the thermoplastic resin used for the lens material is the data within the range of the rectangular area mentioned above, with conditional expressions A and B as the lower and upper limits, respectively. That is, at least one of the first lens L1 to the sixth lens L6 is formed using a material that satisfies the following conditional expression (3). Conditional expression (3) is represented by the following two conditional expressions (3-1) and (3-2).

[0155] nd≧-0.0078×νd+1.78 (3-1)

[0156] nd≦-0.0078×νd+1.84 (3-2)

[0157] More preferably, in the camera lens OS, the lens that satisfies any one of the aforementioned conditions (1), (2) and (3) among the first lens L1 to the sixth lens L6 is the second lens L2, the fourth lens L4 and the sixth lens L6.

[0158] Furthermore, according to one embodiment of the present invention, the camera lens OS can achieve higher optical performance in a small size by appropriately satisfying the conditions described below, and can realize a high-resolution camera lens that both satisfies wide-angle, low-background and low-F-number requirements and corrects various aberrations well.

[0159] The focal length f1 of the first lens L1 and the focal length f of the entire system of the camera lens OS satisfy the following condition (4).

[0160] -3.5 <f1 / f<-2 (4)

[0161] Condition (4) specifies the conditions for effectively achieving wide-angle focusing and good correction of image curvature and distortion. By satisfying the range of condition (4), the negative refractive power of the first lens L1 can be suppressed, and the light rays emitted from the first lens L1 can be directed to the second lens L2 at an appropriate angle. Therefore, it is easier to achieve wide-angle focusing of the camera lens OS. In addition, it is possible to prevent the refractive power of the first lens L1 from becoming too strong relative to the focal length balance of the entire system, and to effectively correct image curvature and distortion.

[0162] The focal length f2 of the second lens and the focal length f of the entire system of the camera lens OS satisfy the following condition (5).

[0163] 5<|f2| / f (5)

[0164] Condition (5) specifies the refractive power of the second lens L2, and specifies the conditions for effectively achieving low backlighting and good aberration correction of the camera lens OS. By making the value of condition (5) exceed the lower limit, the optical length can be shortened while correcting chromatic aberration, and the image plane curvature can be well corrected.

[0165] The focal length f3 of the third lens and the focal length f of the entire system of the camera lens OS satisfy the following condition (6).

[0166] 0.5 <f3 / f<2 (6)

[0167] Condition (6) specifies the conditions for effectively achieving low backlighting and good aberration correction of the camera lens OS. By making the value of condition (6) exceed the lower limit, the positive refractive power of the third lens L3 becomes an appropriate refractive power, thus achieving low backlighting. In addition, by making the value of condition (6) below the upper limit, spherical aberration and coma can be well corrected.

[0168] The focal length f4 of the fourth lens and the focal length f of the entire system of the camera lens OS satisfy the following condition (7).

[0169] -15 <f4 / f<-3 (7)

[0170] Condition (7) specifies the conditions for effectively achieving low-profile and good aberration correction of the camera lens OS. By satisfying the range of condition (7), it is possible to shorten the optical length and effectively correct image plane curvature while correcting chromatic aberration.

[0171] The focal length f5 of the fifth lens and the focal length f of the entire system of the camera lens OS satisfy the following condition (8).

[0172] 1.5 <f5 / f<3.5 (8)

[0173] Condition (8) specifies the conditions for effectively achieving low backlighting and good aberration correction of the camera lens OS. By setting the value of condition (8) below the upper limit, the positive refractive power of the fifth lens L5 is appropriate, thus achieving low backlighting. Furthermore, by setting the value of condition (8) above the lower limit, image plane curvature or distortion can be well corrected.

[0174] The focal length f6 of the sixth lens and the focal length f of the entire system of the camera lens OS satisfy the following condition (9).

[0175] -5 <f6 / f<-1.5 (9)

[0176] Condition (9) specifies the conditions for effectively achieving low backlighting and ensuring the back focal length of the camera lens OS. By setting the value of condition (9) below the upper limit, the negative refractive power of the sixth lens L6 is prevented from becoming excessive. As a result, low backlighting can be maintained. Furthermore, by setting the value of condition (9) above the lower limit, the negative refractive power of the sixth lens L6 is prevented from becoming excessively weak. As a result, the back focal length can be properly ensured.

[0177] The focal length f of the entire system of the camera lens OS and the distance d12 on the optical axis Zop between the first lens L1 and the second lens L2 satisfy the following condition (10).

[0178] 0.4 <d12 / f<2.5 (10)

[0179] Condition (10) specifies the conditions for properly correcting chromatic aberration, image plane curvature, and astigmatism in the camera lens OS. If the value of condition (10) exceeds the upper limit, although it is effective for correcting chromatic aberration, the sagittal image plane of astigmatism curves towards the image plane Im, increasing astigmatism. In addition, the image plane curvature is overcorrected because the imaging plane curves towards the image plane Im. On the other hand, if the value of condition (10) is below the lower limit, chromatic aberration correction is overcorrected, and the sagittal image plane of astigmatism curves towards the object side, increasing astigmatism. In addition, the image plane curvature is undercorrected because the imaging plane curves towards the object side. Therefore, it is difficult to obtain good imaging performance in either case.

[0180] The Abbe number νd2 of the second lens L2 relative to the d line to the Abbe number ν6 of the sixth lens L6 relative to the d line satisfy the following condition (11). Condition (11) is expressed by the following three condition equations (11-1) to (11-3).

[0181] 20<|νd2-νd3|<70 (11-1)

[0182] νd5>νd6 (11-2)

[0183] νd5>νd4 (11-3)

[0184] Condition (11) specifies the conditions for properly correcting the chromatic aberration of the camera lens OS.

[0185] The radius of curvature r11 of the object-side surface of the sixth lens L6 and the radius of curvature r12 of the image-side surface of the sixth lens L6 satisfy the following condition (12).

[0186] 1.2 <r11 / r12<3.0 (12)

[0187] Condition (12) specifies the paraxial radii of curvature of the object-side and image-side surfaces of the sixth lens L6. By satisfying condition (12), image plane curvature can be well corrected.

[0188] The conditions described above each exert the aforementioned effects. Therefore, the camera lens OS according to one embodiment of the present invention is not limited to satisfying all the conditions; even if any condition or any combination of conditions is satisfied, the aforementioned effects can still be achieved.

[0189] [Other methods]

[0190] The present invention has been described above through specific embodiments, but the present invention is not limited to the embodiments described above.

[0191] In the above embodiments, a single lens element is used to form a lens, but a combined lens consisting of multiple lens elements can also be used to form a lens.

[0192] In the above embodiments, the camera lens OS has six lenses, from the first lens L1 to the sixth lens L6, but the camera lens OS may also have lenses that are substantially non-refractive.

[0193] In the above embodiments, the material of at least one of the first lens L1 to the sixth lens L6 is used in... Figure 15 The optical property curves are represented by black dots (●) indicating thermoplastic resins, but the lens material is not limited to thermoplastic resins. As long as the optical properties of the material meet the reference... Figure 15 In any of the conditions (1), (2), and (3) described, the lens material is not limited to thermoplastic resin; for example, it can also be glass. Alternatively, the first lens L1 to the sixth lens L6 can be constructed by appropriately combining lenses using thermoplastic resin as the material and lenses using glass. Furthermore, for all the first lenses L1 to the sixth lenses L6, by using thermoplastic resin as the lens material, the manufacture of the lenses becomes easier, enabling mass production of lenses at low cost.

[0194] Example

[0195] In the following description, various embodiments of a camera lens OS according to one embodiment of the present invention are illustrated with reference to the accompanying drawings.

[0196] In the overall specifications, f represents the focal length of the entire system, Fno represents the F-number, ω represents the half angle of view [deg], Y represents the maximum image height, Bf represents the back focal length, and TTL represents the total lens length. More specifically, the total lens length is the length of the lens surface closest to the object (…). Figure 1 The value is the distance on the optical axis Zop from the first image plane of the nth lens (here, the sixth lens L6) to the image plane of the nth lens, which is closest to the image plane, plus the back focal length. The back focal length is the distance on the optical axis Zop from the image plane of the nth lens to the paraxial image plane Im, after adjusting for air displacement.

[0197] In the surface data, the first column indicates the sequence of the lens surfaces (surface number) starting from the object side along the direction of light travel. Aspherical surfaces are marked with an asterisk (*) to the right of the surface number. The second column, R, indicates the radius of curvature of each lens surface. The third column, D, indicates the distance on the optical axis Zop from each optical surface to the next optical surface (surface spacing). The fourth column, νd, and the fifth column, nd, indicate the Abbe number and refractive index relative to the d-line (wavelength λ = 587.56 nm), respectively. The sixth column indicates the type of lens material as a note. Additionally, the radius of curvature ∞ indicates a plane, omitting the description of the refractive index of air (1.00000). Furthermore, "plastic" as the type of lens material refers to synthetic resin.

[0198] In all the following specifications, focal length f, radius of curvature R, interplanar spacing D, and other length units use "mm," but the length units are not limited to this, as the optical system can achieve the same optical performance whether it is magnified or reduced proportionally. The explanation of these symbols and the specification table are the same in the following embodiments.

[0199] An aspherical surface is represented by the following formula.

[0200] Equation 1

[0201]

[0202] In the formula, y refers to the height above the optical axis, x refers to the distance from the vertex of the aspherical shape at a height of y above the optical axis to the tangent plane, R0 refers to the radius of curvature of the vertex of the aspherical surface, k refers to the conic constant, and A4, A6, A8, A10, A12, A14, and A16 refer to the aspherical coefficients. The aspherical data in each embodiment represents the constant k and the values ​​of coefficients A4, A6, A8, A10, A12, A14, and A16 in the above aspherical formula. In the aspherical data, "E±n" refers to a power of 10. "E+n" means "×10". n “En” means “×10” -n ".

[0203] In the diagrams representing various aberrations of a camera lens, the diagrams for spherical aberration, astigmatism (image plane curvature), and distortion are shown with reference to the d-line (wavelength λ = 587.56 nm), F-line (wavelength λ = 486.1 nm), and C-line (wavelength 656.27 nm), respectively. In these aberration diagrams, the different wavelengths of the light source used as the reference for the aberration are distinguished by the thickness of the lines. For example, in the illustrated example, if the thickness of the C-line is used as the reference, the d-line is represented by a line thicker than the C-line, and the F-line is represented by a line thinner than the C-line. In the diagram representing astigmatism (image plane curvature), solid lines represent aberrations in the tangential direction, and dashed lines represent aberrations in the sagittal direction.

[0204] An overview of the parameters in each embodiment is shown in Table 1. In Table 1, f1 is the focal length of the first lens L1. Similarly, f2 to f6 are the focal lengths of the second lens L2 to the sixth lens L6, respectively. f is the focal length of the entire camera lens OS system. d12 is the distance between the first lens L1 and the second lens L2 on the optical axis Zop. νd1 is the Abbe number of the first lens L1 relative to the d-line. Similarly, νd2 to νd6 are the Abbe numbers of the second lens L2 relative to the d-line to the sixth lens L6, respectively.

[0205] Table 1

[0206] Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 Example 12 f1 / f -2.99 -2.95 -3.02 -2.57 -2.65 -2.70 -2.71 -2.70 -3.09 -2.66 -2.36 -2.19 |f2| / f 7.00 6.99 8.02 33.01 45.90 52.89 72.08 52.22 11.23 66.35 28.66 42.79 f3 / f 0.95 0.95 0.96 1.47 1.46 1.46 1.42 1.32 1.08 1.39 1.40 1.45 f4 / f -6.00 -6.01 -6.20 -11.36 -8.28 -7.50 -4.72 -6.07 -7.93 -7.93 -8.32 -9.15 f5 / f 1.91 1.91 1.93 2.38 2，45 2.43 3.16 3.15 2.11 2.57 2.45 2.50 f6 / f -2.03 -1.92 -2.09 -2.43 -2.47 -2.46 -4.31 -3.51 -2.17 -2.42 -2.94 -3.15 d12 / f 0.51 0.47 0.48 2.02 2.15 2.20 2.19 2.19 0.77 1.99 1.30 1.35 |νd2-νd3| 38.7 38.7 41.0 43.7 43.7 43.7 43.7 43.7 48.9 47.1 48.9 48.9 r11 / r12 1.7 1.6 1.6 2.4 2.3 2.3 2.1 2.0 1.8 2.3 1.9 1.8

[0207] As shown in Table 1, the conditional expressions (4) to (12) described in the above embodiments are satisfied in each of Examples 1 to 12.

[0208] Furthermore, while the embodiments are described with all camera lenses using a fixed focus, the camera lenses can also be configured to be adjustable in focus. For example, the lens system from the first lens L1 to the sixth lens L6 can be configured to be adjustable in focus by extending the entire lens system along the optical axis Zop, or one or more of the first lens L1 to the sixth lens L6 can be configured to be adjustable in focus by moving any one of the lenses along the optical axis Zop.

[0209] [First Embodiment]

[0210] The following describes specific numerical examples of the camera lens OS1 according to the first embodiment. Table 2 shows the surface data of the camera lens OS1, and Table 3 shows the aspherical data of the camera lens OS1.

[0211] As shown in the data below, in the camera lens OS1 according to the first embodiment, the first lens L1 to the sixth lens L6 are aspherical lenses. Figure 15 The thermoplastic resin, indicated by black dots (●) in the optical characteristic curve, is used for the second lens L2, the fourth lens L4, and the sixth lens L6. Furthermore, the material configuration of the first lens L1 to the sixth lens L6 and the optical component CG is such that the relationship between the Abbe number νd relative to the d-line is symmetrical with a value of 50 as the boundary. This achieves a high degree of chromatic aberration correction.

[0212] Figure 16 This diagram shows the various aberrations of the camera lens OS1. (A) represents spherical aberration, (B) represents astigmatism (image plane curvature), and (C) represents distortion. As these aberration diagrams show, it can be seen that the camera lens OS1 effectively corrects for each aberration.

[0213] [Overall Specifications]

[0214] f=1.745, Fno=2.2, ω=60deg, Y=2.3, Bf=0.797, TTL=5.87

[0215] [Surface Data]

[0216] Table 2

[0217] Example 1 Surface Data

[0218] Face number R D nd νd Remark 1* -30.9413 0.7208 1.545 56 plastic 2* 3.1565 0.8309 3 (Aperture) ∞ 0.0550 4* 13.8605 0.2551 1.674 17.3 plastic 5* 5.1253 0.1048 6* 11.6697 1.0230 1.545 56 plastic 7* -0.9467 0.0550 8* 1.2367 0.2500 1.715 12.3 plastic 9* 0.9720 0.4952 10* -8.9187 0.9879 1.545 56 Hope 11* -1.565 0.0531 12* 1.3392 0.2500 1.715 12.3 plastic 13* 0.8083 0.4000 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.1988 Image ∞

[0219] *Aspherical

[0220] [Aspherical Data]

[0221] Table 3

[0222] Example 1: Aspherical Data

[0223] Face number K A4 A6 A8 A10 A12 A14 A16 1 -4.035404E+01 7.133558E-07 -2.052892E-02 6.324107E-03 -1.193746E-03 1.104086E-04 0.000000E+00 0.000000E+00 2 2.772127E-01 1.183146E-01 3.088757E-02 -4.843211E-02 2.942599E-02 -9.379563E-03 0.000000E+00 0.000000E+00 4 3.736333E+01 -3.003705E-01 -1.564604E-01 6.848804E-01 -2.215106E+00 2.529588E-09 5.614837E-11 0.000000E+00 5 -3.866644E+01 -2.149093E-01 1.726399E-02 6.478521E-02 -1.742202E-01 8.918782E-02 -1311026E-08 0.000000E+00 6 -3.924857E+01 -2.803775E-02 -1.596613E-01 2.682722E-01 -2.196705E-01 9.937698E-02 -1.327837E-02 0.000000E+00 7 -1.010888E+00 6.594852E-03 -4.819415E-02 2.023271E-02 -6.191979E-02 3.236175E-02 -7.837561E-03 0.000000E+00 8 -1.369169E+00 -1.638708E-01 7.630721E-02 -2.800992E-02 5.645124E-03 -1.032770E-03 3.420977E-05 0.000000E+00 9 -2.085356E+00 -1.122549E-01 6.244225E-02 -2.298578E-02 4.228460E-03 -1.893525E-04 -3.841948E-05 0.000000E+00 10 1.018033E+01 1.823138E-01 1.152187E-01 3.820524E-02 -7.872321E03 1.531579E03 -1.913760E04 5.732835E-07 11 -3.959444E-01 1.998453E-01 -8.591085E-02 2.324769E-02 -3.942358E-03 7.176410E-04 -2.587412E-05 -8.237580E-06 12 -5.709481E+00 -1.8230444E-01 -2.191682E-05 1.524353E-02 8.584792E-04 -1.171501E-03 1.029460E-04 2.751083E-06 13 -2.935214E+00 -1.784520E-01 5.030957E-02 -6.270091E-03 -1.490047E-04 1.153976E-04 2.395673E-06 -2.105480E-06

[0224] [Second Embodiment]

[0225] Similar to the first embodiment, specific numerical examples of each of the camera lenses OS2 to OS12 according to the second to twelfth embodiments will also be described. Tables 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24 represent the surface data of each of the camera lenses OS2 to OS12, and Tables 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 25 represent the aspherical data of each of the camera lenses OS2 to OS12.

[0226] As shown in the data below, in each of the camera lenses OS2 to OS12 according to the second to twelfth embodiments, the first lens L1 to the sixth lens L6 are aspherical lenses. Figure 15 The thermoplastic resin, indicated by black dots (●) in the optical characteristic curve diagram, is used for the second lens L2, the fourth lens L4, and the sixth lens L6. Furthermore, the material configuration of the first lens L1 to the sixth lens L6 and the optical component CG is such that the relationship between the Abbe number νd relative to the d-line is symmetrical with a value of 50 as the boundary. This achieves a high degree of chromatic aberration correction.

[0227] Figures 17 to 27 This is a diagram showing the aberrations of each of the camera lenses OS2 to OS12. As shown in these aberration diagrams, it can be seen that camera lenses OS2 to OS12 have all corrected for their respective aberrations well.

[0228] [Overall Specifications]

[0229] f=1.749, Fno=2.2, ω=60deg, Y=2.3, Bf=0.797, TTL=5.823

[0230] [Surface Data]

[0231] Table 4

[0232] Example 2: Number of Faces

[0233] Face number R D nd νd Remark 1* -28.4860 0.7180 1.545 56 plastic 2* 3.1489 0.7739 3 (Aperture) ∞ 0.0550 4* 14.0823 0.2500 1.674 17.3 plastic 5* 5.1609 0.1046 6* 10.9400 1.0291 1.545 56 plastic 7* -0.9550 0.0550 8* 1.2340 0.2500 1.715 12.3 plastic 9* 0.9705 0.4861 10* -9.9665 0.9994 1.545 56 plastic 11* -1.5959 0.0550 12* 1.2570 0.2500 1.715 12.3 plastic 13* 0.7759 0.4000 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.1988 Image ∞

[0234] *Aspherical

[0235] [Aspherical Data]

[0236] Table 5

[0237] Example 2 Aspherical Data

[0238] Face number K A4 A6 A8 A10 A12 A14 A16 1 -1.826635E+01 7.121402E-02 -2.057410E-02 6.310851E-03 -1.195682E-03 1.114444E-04 0.000000E+00 0.000000E+00 2 2.201512E-01 1.178271E-01 3.373539E-02 -5.291751E-02 2.708858E-02 -7.768126E-03 0.000000E+00 0.000000E+00 4 9.998775E+01 -2.965979E-01 -1.576635E-01 6.725131E-01 -2.109245E+00 -2.394203E-10 -1.012741E-10 0.000000E+00 5 -3.870143E+01 -2.128146E-01 2.443766E-02 6.262192E-02 -1.767684E-01 8.918869E-02 -3.221837E-10 0.000000E+00 6 -2.213661E+01 -2.681524E-02 -1.601026E-01 2.707686E01 2.149289E-01 9.174514E-02 -1.435995E-02 0.000000E+00 7 -1.019898E+00 7.754345E-03 -5.076704E-02 1.961959E-02 -6.130687E-02 3.293223E-02 -7.838581E-03 0.000000E+00 8 -1.364437E+00 -1.631863E-01 7.698409E-02 -2.790241E-02 5.655657E-03 -1.018989E-03 4.235063E-05 0.000000E+00 9 -2.084028E+00 -1.120991E-01 6.292052E-02 -2.282067E-02 4.232305E-03 -1.935227E-04 -3.940598E-05 0.000000E+00 10 8.029456E+00 1.832181E-01 -1.155192E-01 3.808300E-02 -7.870288E-03 1.531854E-03 -1.929034E-04 -3.019854E-07 11 -4.024039E-01 2.003835E-01 -8.453012E-02 2.341301E-02 -4.103425E-03 6.710505E-04 -3.062659E-05 -7.864694E-06 12 -5.480060E+00 -1.827265E-01 -8.898869E-04 1.502582E-02 9.095181E-04 -1.154215E-03 1.009493E-04 1.042062E-06 13 -2.981143E+00 -1.781379E-01 5.021997E-02 -6.267685E-03 -1.561603E-04 1.139913E-04 2.304192E-06 -2.090156E-06

[0239] [Third Embodiment]

[0240] [Overall Specifications]

[0241] f=1.75, Fno=2.2, ω=60deg, Y=2.3, Bf=0.798, TTL=5.748

[0242] [Surface Data]

[0243] Table 6

[0244] Example 3 Surface Data

[0245] Face number R D nd νd Remark 1* -58.3971 0.6665 1.545 56 plastic 2* 3.0340 0.7929 3 (Aperture) ∞ 0.0550 4* 13.6507 0.2500 1.696 15 plastic 5* 5.6520 0.1049 6* 16.6885 1.0067 1.545 56 plastic 7* -0.9505 0.0550 8* 1.2304 0.2500 1.715 12.3 plastic 9* 0.9720 0.4780 10* -10.5793 0.9868 1.545 56 plastic 11* -1.6161 0.0550 12* 1.2669 0.2500 1.715 12。3 plastic 13* 0.7831 0.4000 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.2000 Image ∞

[0246] *Aspherical

[0247] [Aspherical Data]

[0248] Table 7

[0249] Example 3 Aspherical Data

[0250] Face number K A4 A6 A8 A10 A12 A14 A16 1 9.870112E+01 7.188239E-02 -1.988196E-02 6.094359E-03 -1.185210E-03 1.186239E-04 0.000000E+00 0.000000E+00 2 -1.818322E+00 1.228366E-01 4.102017E-02 -5.737095E-02 2.588417E-02 -6.826442E-03 0.000000E+00 0.000000E+00 4 1.000000E+02 -3.008625E-01 -1.759703E-01 7.144618E-01 -2.209942E+00 -1.700080E-10 -9.577335E-11 0.000000E+00 5 -5.385156E+01 -2.124783E-01 2.140514E-02 2.599625E-02 -1.348051E-01 8.919354E-02 -2.948358E-10 0.000000E+00 6 -1.232733E+01 -2.555915E-02 -1.611500E-01 2.770364E-01 -2.270821E-01 9.825409E-02 -1.151440E-02 0.003000E+00 7 -1.019530E+00 7.597785E-03 -5.336681E-02 2.003882E-02 -6.055603E-02 3.285255E-02 -8.906755E-03 0.000000E+00 8 -1.364999E+00 -1.619988E-01 7.802531E-02 -2.787424E-02 5.549086E-03 -1.049386E-03 5.376048E-05 0.000000E+00 9 -2.104465E+00 -1.095790E-01 6.254644E-02 -2.288679E-02 4.232123E-03 -1.873705E-04 -3.990329E-05 0.000000E+00 10 -3.097197E+00 1.849776E-01 -1.159203E-01 3.804015E-02 -7.858436E-03 1.534173E-03 -1.930788E-04 -4.565345E-07 11 -3.395332E01 2.026304E-0l -8.198558E-02 2.326078E-02 -4.257707E-03 6.607985E-04 -2.549038E-05 -5.682604E-06 12 -5.434143E+00 -1.818289E-01 -1.800366E-03 1.495245E-02 9.672703E-04 -1.151478E-03 9.611047E-05 -3.553482E-07 13 -2.952863E+00 -1.785893E-01 5.075431E-02 -6.343544E-03 -1.720063E-04 1.127328E-04 2.378284E-06 -2.052018E-06

[0251] [Fourth Embodiment]

[0252] [Overall Specifications]

[0253] f=1.1, Fno=2.2, ω=60deg, Y=1.35, Bf=0.735, TTL=5.932

[0254] [Surface Data]

[0255] Table 8

[0256] Example 4 Surface Data

[0257] Face number R D nd νd Remark 1* 4.9574 0.3226 1.545 56 plastic 2* 1.1482 2.1506 3 (Aperture) ∞ 0.0750 4* 3.9489 0.2500 1.715 12.3 plastic 5* 3.3372 0.0750 6* 3.2736 0.5806 1.545 56 plastic 7* 1.1304 0.0750 8* 1.7259 0.2500 1.715 12.3 plastic 9* 1.3592 0.1877 10* 4.2743 0.9546 1.545 56 plastic 11* -1.9764 0.0189 12* 2.4754 0.2570 1.715 12.3 plastic 13* 1.0316 0.3222 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.2150 Image ∞

[0258] *Aspherical

[0259] [Aspherical Data]

[0260] Table 9

[0261] Example 4 Aspherical Data

[0262] Face number K A4 A6 A8 A10 A12 A14 A16 1 4.575150E+00 9.409279E-02 -2.478478E-02 4.954349E-03 -1.472317E-03 1.534536E-04 4.220553E-05 -7.537735E-06 2 9.504997E-02 1.152771E-01 6.645038E-02 -3.632999E-02 6.078833E-02 -1.535599E-02 -4.441669E-02 2.004062E-02 4 -8.504736E+01 -3.207510E-01 -9.005228E-01 2.445177E+00 -6.559108E+00 -3.336082E-04 -1.774102E-05 -8.795314E-08 5 -6.748108E+01 -2.806175E-01 -4.779222E-01 5.160920E-03 3.456748E-01 8.547954E-02 -2324714E-03 8.096979E-05 6 1.165616E+01 8.063434E-03 -3.191244E-01 3.813891E-01 -5.766458E-01 1.235297E-01 -1.540385E-02 8.346938E-08 7 -1.158345E+00 2.160968E-02 -1.142802E-02 4.015524E-02 -1.326526E-01 -1.594454E-01 -1.983517E-01 -5.577287E-04 8 -1.871761E+00 -1.706271E-01 4.865200E-02 -5.144556E-02 1.211478E-02 2.426418E-02 -3.364559E-02 -1.340153E-01 9 -2.048915E+00 -1.010574E-01 9.566204E-02 -1.236781E-02 -1.021482E-03 -2.771166E-02 1.627223E-01 -1.475062E-01 10 -2.231940E+01 1.855139E-01 -1.516092E-01 2.640596F-02 5.853653F-03 6.270735E-02 -1.817003E-01 1.072382E-01 11 5.171914E-03 2.441127E-01 -1.345059E-01 -1.279768E-02 -1.387650E02 1.490843E-03 3.550406E03 -1.116556E-03 12 -9.999959E+01 -3.012258E-01 2.750929E-02 2.959650E-02 4.778265E-03 -2.251150E-03 -1.797076E-03 -5.405735E-05 13 -1.215861E+01 -1.800864E-01 1.146121E-02 -5.859388E-03 4.945598E-03 1.879674E-03 -7.529504E-05 -4.216921F04

[0263] [Fifth Embodiment]

[0264] [Overall Specifications]

[0265] f=1.099, Fno=2.2, ω=60deg, Y=1.35, Bf=0.724, TTL=6.046

[0266] [Surface Data]

[0267] Table 10

[0268] Example 5 Surface Data

[0269] Face number R D nd νd Remark 1* 5.1195 0.3060 1.545 56 plastic 2* 1.1864 2.2855 3 (Aperture) ∞ 0.0750 4* 3.6617 0.2500 1.715 12.3 plastic 5* 3.2296 0.0750 6* 3.2073 0.5849 1.545 56 plastic 7* -1.1234 0.0750 8* 1.7374 0.2500 1.696 15 plastic 9* 1.2828 0.1668 10* 3.8538 0.9810 1.545 56 plastic 11* -2.1486 0.0233 12* 2.3924 0.2500 1.715 12.3 plastic 13* 1.0258 0.3224 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.2034 Image ∞

[0270] *Aspherical

[0271] [Aspherical Data]

[0272] Table 11

[0273] Example 5 Aspherical Data

[0274] Face number K A4 A6 A8 A10 A12 A14 A16 1 4.561053E+00 9.678860E-02 -2.481787E-02 4.871089E-03 -1.504890E-03 1.494275E-04 4.214730E-05 -6.927780E-06 2 8.162447E-02 1.129401E-01 7.940423E-02 -5.347413E-02 5.720195E-02 -5.257751E-03 -3.648671E-02 1.165100E-02 4 -6.828538E+01 -3.068607E-01 -8.630536E-01 2.236138E+00 -5.647950E+00 -3.336064E-04 -1.774086E-05 -8.784679E-08 5 -5.839534E+01 -2.725707E-01 -4.525346E-01 1.106214E-01 2.616768E-01 8.547954E-02 -2.324714E-03 8.096979E-05 6 1.140327E+01 5.220368E-03 -3.109785E-01 3.693531E-01 -6.257483E-01 1.235297E-01 -1.540385E-02 8.347695E-08 7 -1.139757E+00 1.949013E-02 -4.177776E-02 1.778544E-02 -1.356236E-01 -1.647577E-01 -2.342646E-01 -5.577287E-04 8 -2.691804E+00 -1.844705E-01 3.845365E-02 -7.754666E-02 -6.950571E-03 3.779295E-02 -1.847663E-02 -1.911604E-01 9 2.113088E+00 -1.042820E-01 9.290195E-02 -1.149990E-02 -7.543987E-03 -4.132634E-02 1.544245E-01 -1.195592E-01 10 -1.240702E+01 1.904112E-01 -1.533223E-01 2.655668E-02 1.233286E-02 6.881551E-02 -1.814750E-01 9.701702E-02 11 2.542544E-01 2.278215E-01 -1.419183E-01 -5.512309E-03 -9.420261E-03 2.168719E-03 2.699870E-03 -1.938586E-03 12 -1.000000E+02 -3.147886E-01 3.185234E-02 3.112217E-02 5.256821E-03 -1.919404E-03 -1.631416E-03 -2.252774E-04 13 -1.321574E+01 -1816826E-01 9.145618E-03 -5415410E-03 5.481211E-03 2.051095E-03 -5.556522E-05 -4.045632E-04

[0275] [Sixth Embodiment]

[0276] [Overall Specifications]

[0277] f=1.1, Fno=2.2, ω=55deg, Y=1.26, Bf=0.731, TTL=6.112

[0278] [Surface Data]

[0279] Table 12

[0280] Example 6 Surface Data

[0281] Face number R D nd νd Remark 1* 5.1677 0.2900 1.545 56 plastic 2* 1.2082 2.3439 3 (Aperture) ∞ 0.0756 4* 3.5942 0.2500 1.696 15 plastic 5* 3.2070 0.0942 6* 3.2086 0.5887 1.545 56 plastic 7* -1.1266 0.0750 8* 1.7571 0.2500 1.696 15 plastic 9* 1.2670 0.1643 10* 3.6576 0.9813 1.545 56 plastic 11* -2.1854 0.0184 12* 2.3826 0.2500 1.715 12.3 plastic 13* 1.0201 0.3203 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.2127 Image ∞

[0282] *Aspherical

[0283] [Aspherical Data]

[0284] Table 13

[0285] Example 6 Aspherical Data

[0286] Face number K A4 A6 A8 A10 A12 A14 A16 1 4.601861E+00 9.797494E-02 -2.474699E-02 4.840765E-03 -1.516155E-03 1.476479E-04 4.208068E-05 -6.755388E-06 2 7.415283E-02 1.117577E-01 8.015492E-02 -5.651004E-02 5.719953E-02 -3.272775E-03 -3.500860E-02 1.069443E-02 4 -6.294060E+01 -3.060924E-01 -8.576606E-01 2.148493E+00 -5.720336E+00 -3.336045E-04 -1.774145E-05 -8.815317E-08 5 -5.532212E+01 -2.727304E-01 -4.630513E-01 9.286262E-02 1.261055E-01 8.547954E-02 -2.324714E-03 8.096986E-05 6 1.110043E+01 2.712065E-03 -3.090190E-01 3.674276E-01 -6.659015E-01 1.235297E-01 -1.540385E-02 8.354006E-08 7 -1.144155E+00 1.977549E-02 -4.352940E-02 1.820514E-02 -1.329685E-01 -1.613719E-01 -2.214939E-01 -5.577287E-04 8 -2.896217E+00 -1.846218E-01 4.196545E-02 -7.695113E-02 -8.426481E-03 4.411743E-02 -8.717856E-03 -1.973877E-01 9 -2.185734E+00 -1.067868E-01 9.100672E-02 -1.253029E-02 -8.469698E-03 -4.321587E-02 1.527839E-01 -1.157364E-01 10 -1.157094E+01 1.902458E-01 -1.561459E-01 2.727773E-02 1.371929E-02 6.992494E-02 -1.811854E-01 9.475624E-02 11 2.723732E-01 2.247020E-01 1.426552E-01 -4.801694E-03 -8.028643E-03 2.143982E-03 2.546207E-03 -2.069789E-03 12 -9.992625F+01 -3.142714F-01 3.256554E-02 3.134092E-02 5.293906E-03 -1.929611E-03 -1.671270E-03 -3.064624E-04 13 -1.317995E+01 -1.824359E-01 9.168133E-03 -5.341481E-03 5.524262E-03 2.055963E-03 -6.229749E-05 -4.149307E-04

[0287] [Seventh Embodiment]

[0288] [Overall Specifications]

[0289] f=1.1, Fno=2, ω=50deg, Y=1.17, Bf=0.698, TTL=6.004

[0290] [Surface Data]

[0291] Table 14

[0292] Example 7 Face Number

[0293] Face number R D nd νd Remark 1* 4.5642 0.2974 1.545 56 plastic 2* 1.1703 2.3314 3 (Aperture) ∞ 0.0750 4* 2.0731 0.2872 1.715 12.3 plastic 5* 2.0275 0.1063 6* 2.2409 0.7368 1.545 56 plastic 7* -1.2105 0.0750 8* 2.2925 0.2500 1.696 15 plastic 9* 1.3398 0.1140 10* 2.0240 0.5823 1.545 56 plastic 11* -25.8241 0.2015 12* 3.4859 0.2500 1.715 12.3 plastic 13* 1.6681 0.2979 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.2021 Image ∞

[0294] *Aspherical

[0295] [Aspherical Data]

[0296] Table 15

[0297] Example 7 Aspherical Data

[0298] Face number K A4 A6 A8 A10 A12 A14 A16 1 4.743037E+00 9.982550E-02 -2.409386E-02 4.966700E-03 -1.500820E-03 1.526027E-04 4.264562E-05 -7.031907E-06 2 1.199597E-01 8.283169E-02 1.421816E-01 -1.335275E-01 9.867314E-02 -5.651300E-03 -3.641630E-02 1.336330E-02 4 -5.581133E+00 -2.474362E-01 -3.059587E-01 1.106023E+00 -2.995587E+00 -3.343899E-04 -1.795893E-05 -1.297594E-07 5 3.791327E+00 -4.314094E-01 -1.933872E-01 3.761834E-01 -2.665666E-01 8.547898E-02 -2.324859E-03 8.090410E-05 6 -6.988460E+00 2.667022E-02 -3.258026E-01 4.749243E-01 -2.873564E-01 1.222018E-01 -1.540400E-02 1.741529E-08 7 -3.841691E-01 -2.880238E-02 -5.371818E-02 7.884208E-03 -1.341471E-01 -3.639640E-02 1.537088E-01 -5.577933E-04 8 -2.312808E+01 -2.095099E-01 4.316985E-02 -2.118391E-02 5.249214E-02 -2591205E-01 -5.866200E-01 4.894887E-01 9 -8.237158E+00 -5.533105E-02 1.590690E-01 8.343926E-02 -3.541360E-02 -2.655214E-01 -1.428386E-01 2.622321E-01 10 -1.568168E+01 2.748961E-01 -1.531384E-01 -1346360E-03 1.204089E-02 1.023347E-01 -1.491774E-01 4.540317E-02 11 1.000000E+02 1.959561E-01 -1.425486E-01 -4.419558E-02 -4.030051E-02 5.499289E-02 9.620838E-02 -7.665214E-02 12 -2.977386E+01 -3.607932E-01 3.395721E-02 4.485499E-02 5.984351E-02 5.131498E-02 4.990048E-03 -4.348165E-02 13 -5.365214E-02 -5.541503E-01 2.370775E-01 -1.091258E-02 -1.368886E-01 1.612186E-02 1.898544E-01 -1.000182E-01

[0299] [Eighth Embodiment]

[0300] [Overall Specifications]

[0301] f=1.1, Fno=2, ω=50deg, Y=1.11, Bf=0.698, TTL=5.893

[0302] [Surface Data]

[0303] Table 16

[0304] Example 8 Surface Data

[0305] Face number R D nd νd Remark 1* 4.5642 0.2772 1.545 56 plastic 2* 1.1685 2.3309 3 (Aperture) ∞ 0.0750 4* 1.2832 0.2500 1.715 12.3 plastic 5* 1.1433 0.1154 6* 1.4131 0.7357 1.545 56 plastic 7* -1.4601 0.0750 8* 3.3554 0.2500 1.696 15 plastic 9* 1.8886 0.1105 10* 2.5209 0.6780 1.545 56 plastic 11* -6.7474 0.0477 12* 2.5760 0.2500 1.715 12.3 plastic 13* 1.2784 0.2125 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.2875 Image ∞

[0306] *Aspherical

[0307] [Aspherical Data]

[0308] Table 17

[0309] Example 8 Aspherical Data

[0310] Face number K A4 A6 A8 A10 A12 A14 A16 1 4.678406E+00 1.005577E-01 -2.426137E-02 4.950343E-03 -1.496046E-03 1.501154E-04 4.211004E-05 -7.153314E-06 2 1.493739E-01 1.102501E01 7.510937E-02 -5.144954E-02 4.531269E-02 8.075182E-02 -1.460278E-01 5.950572E-02 4 -3.073334E+00 -1.392980E-01 -2.995380E-01 1.038659E+00 -2.621345E+00 -2.917256E-04 8.729692E-05 2.716429E-05 5 -3.225548E+00 -2.792136E-01 -1.279859E-01 4.369343E-01 -8.033857E-01 8.567961E-02 -2.255301E-03 1.001810E-04 6 -5.497611E+00 8.476126E-03 -3.114710E-01 4.837428E-01 -1.894460E-01 1.301333E-01 -1.534158E-02 1.905755E-05 7 -3.788246E-01 -1.498715E-01 5.930777E-04 2.428430E-02 -1.983244E-01 8.416347E-02 3.369477E-01 -5.368623E-04 8 -4.908175E+01 -1.447221E-01 -1.104585E-01 -8.618159E-02 7.484130E-02 -6.522104E-01 -8.319069E-01 1.899180E+00 9 3.103508E+00 -1.371138E-01 8.131466E-02 -9.474144E-02 -1.573875E-01 -9.363266E02 -5.169769E-02 2.627290E-01 10 -5.352341E+00 1.670197E-01 -2.510050E-01 1.264577E-01 7.678101E-02 3.152679E-02 -2.199955E-01 5.457147E-02 11 -1.000000E+02 1.507573E-01 -1.646111E-01 -1.742154E-02 1.597593E-02 -6.518817E-02 -3.755121E-02 3.783691E-02 12 -9.449115E+01 -2.935167E-01 2.175372E-01 1.211032E-01 -1.936436E-01 -1.889878E-01 4.658038E-03 1.161572E-01 13 -2.047352E+01 -2.254064E-01 9.175139E-02 6.298195E-02 -1.275530E-01 -6.921407E-02 1.224204E-01 -3.453018E-02

[0311] [Ninth Embodiment]

[0312] [Overall Specifications]

[0313] f=1.47, Fno=2.2, ω=55.5deg, Y=1.7, Bf=0.701, TTL=5.809

[0314] [Surface Data]

[0315] Table 18

[0316] Example 9: Number of faces

[0317] Face number R D nd vd Remark 1* -30.5877 0.7669 1.545 56 plastic 2* 2.7124 1.0523 3 (Aperture) ∞ 0.0750 4* 13.8997 0.2665 1.715 12.3 plastic 5* 6.3323 0.1039 6* 17.4566 0.9813 1.589 61.2 Glass 7* -0.9663 0.0750 8* 1.2101 0.2500 1.715 12.3 plastic 9* 0.9657 0.4471 10* -9.2792 0.7634 1.589 61.2 Glass 11* -1.5735 0.0769 12* 1.6734 0.2500 1.715 12.3 plastic 13* 0.9052 0.3015 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.2014 Image ∞

[0318] *Aspherical

[0319] [Aspherical Data]

[0320] Table 19

[0321] Example 9 Aspherical Data

[0322] Face number K A4 A6 A8 A10 A12 A14 A16 1 -9.378302E+01 7.176753E-02 -2.097056E-02 6.359493E-03 -1.164134E-03 1.106316E-04 -1.229324E-06 -2.558245E-07 2 7.288251E-01 1.162117E-01 3.893066E-02 -3.718765E-02 3.458967E-02 -7.650108E-03 -4.346455E-04 -1.949103E-04 4 -4.992834E+01 -2.624333E-01 -2.298359E-01 4.655155E-01 -1.635884E+00 -1.817485E-04 -8.800103E-06 -1.024329E-11 5 -4.845674E+01 -1.924096E-01 -1.890901E-02 2.931168E-02 -3.831326E-02 4.645105E-02 -1.130863E03 3.521444E-05 6 -9.536103E+01 -2.932292E-02 -1.545602E-01 2.676746E-01 -2.214850E-01 1.083854E-01 -1.542260E-02 8.335225E-10 7 -9.859362E-01 3.306757E-03 -4.511072E-02 1.982792E-02 -6.055355E-02 3.206205E-02 -5.962608E-03 -1.767726E-03 8 -1.384500E+00 -1.644738E-01 7.628019E-02 -2.791861E-02 5.430867E-03 -1.134979E-03 -2，277754E-05 -2.755817E-05 9 -2.107943E+00 -1.138198E-01 6.125573E-02 -2.299554E-02 4.398656E-03 -1.327796E-04 -2.152056E-05 -5.922823E-07 10 8.265915E+00 1.907041-E-01 -1.230730E-01 4.310493E-02 -8.999540E-03 1.823107E-03 -2.398855E-04 1.242636E-06 11 -4.042369E-01 2.235898E-01 -9.511948E-02 2.475181E-02 -4.776562E-03 8.491920E-04 -1.986966E-05 -3.323218E-06 12 -2.008708E+01 -1.778915E-01 1.980918E-03 1.560428E-02 7.839627E-04 -1.209497E-03 8.126885E-05 -1.034586E-05 13 -5.385650E+00 -1.505700E-01 4.477194E-02 -7.620658E-03 -2.915917E-04 1.151948E-04 9.146414E-06 9.980241E-07

[0323] [Tenth Embodiment]

[0324] [Overall Specifications]

[0325] f=1.093, Fno=2.2, ω=55deg, Y=1.25, Bf=0.692, TTL=5.816.

[0326] [Surface Data]

[0327] Table 20

[0328] Example 10 data

[0329] Face number R D nd νd Remark 1* 4.6778 0.3297 1.545 56 plastic 2* 1.1546 2.1020 3 (Aperture) ∞ 0.0750 4* 3.5932 0.2500 1.715 12.3 plastic 5* 3.2629 0.0981 6* 3.2662 0.5883 1.583 59.4 Glass 7* -1.1327 0.0750 8* 1.9313 0.2500 1.696 15 plastic 9* 1.3853 0.1713 10* 4.5079 0.9062 1.583 59.4 Glass 11* -2.3865 0.0280 12* 2.1722 0.2500 1.715 12.3 plastic 13* 0.9632 0.3009 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.1934 Image ∞

[0330] *Aspherical

[0331] [Aspherical Data]

[0332] Table 21

[0333] Example 10 Aspherical Data

[0334] Face number K A4 A6 A8 A10 A12 A14 A16 1 4.208676E+00 9.779849E-02 -2.479937E-02 4.881620E-03 -1.507655E-03 1.493194E-04 4.271598E-05 -6.639131E-06 2 1.089874E-01 1.237309E-01 8.724683E-02 -5.178575E-02 5.563949E-02 -6.905440E-03 -3.728422E-02 1168688E-02 4 -6.646680E+01 -3.071967E-01 -9.153656E-01 2.207916E+00 -6.110189E+00 -3.335985E-04 -1.773921E-05 -8.431241E-08 5 -5.688666E+01 -2.734641E-01 -4.547857E-01 2.057466E-03 3.407590E-01 8.547954E-02 -2.324712E-03 8.097334E-05 6 1.163020E+01 7.044516E-03 -3.051534E-01 3.659804E-01 -6.498892E-01 1.235297E-01 -1.540384E-02 8.701358E-08 7 -1.150506E+00 2.016094E-02 -4.646159E-02 1.414015E-02 -1.392908E-01 -1.653135E-01 -1.580117E-01 -5.577251E-04 8 -2.692228E+00 -1.841519E-01 3.527763E-02 -8.041977E-02 -1.252516E-02 3.204140E-02 -1.316044E-02 -2.112522E-01 9 -2.102576E+00 -1.039660E-01 9.394272E-02 -9.464677E-03 -6.237306E-03 -4.176081E-02 1.534639E-01 -1.226618E-01 10 -1.550598E+01 1.864149E-01 -1.546433E-01 3.060392E-02 1.165430E-02 6.832355E-02 -1.819105E-01 9.622565E-02 11 2.649755E-01 2.271391E-01 -1.437983E-01 -5.684661E-03 -9.351864E-03 2.178978E-03 2.676623E-03 -1.959368E-03 12 -8.316134E+01 -3.121528E-01 3.279182E-02 3.132604E-02 5.259621E-03 -1.953766E-03 -1.669168E-03 -1.396137E-04 13 -1.298435E+01 -1.862879E-01 9.523088E-03 -5.214544E-03 5.581173E-03 2.100151E-03 -3.444321E-05 -3.941374E-04

[0335] [Eleventh Embodiment]

[0336] [Overall Specifications]

[0337] f=1.1, Fno=2.2, ω=52.5deg, Y=1.19, Bf=0.759, TTL=6.129

[0338] [Surface Data]

[0339] Table 22

[0340] Example 11: Number of faces

[0341] Face number R D nd Vd Remark 1* -30.5182 0.7548 1.545 56 plastic 2* 1.4919 1.0731 3 (Aperture) ∞ 0.3569 4* -284.6208 0.2647 1.715 12.3 plastic 5* 24.4893 0.1007 6* 388.5921 1.0157 1.589 61.2 Glass 7* -0.9094 0.0750 8* 1.0815 0.2500 1.715 12.3 plastic 9* 0.8386 0.3747 10* -40.8710 0.7999 1.589 61.2 Glass 11* -1.5421 0.0500 12* 1.7651 0.2553 1.715 12.3 plastic 13* 0.9412 0.2992 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.2615 Image ∞

[0342] *Aspherical

[0343] [Aspherical Data]

[0344] Table 23

[0345] Example 11 Aspherical Data

[0346] Face number K A4 A6 A8 A10 A12 A14 A16 1 7.764980E+01 7.149017E-02 -2.101993E-02 6.381497E-03 -1.157575E-03 1.116375E-04 -1.071044E-06 -3.061158E-07 2 1.513765E+00 3.430095E-02 8.790813E-02 3.547582E-02 3.672132E-02 5.581759E-03 1.282064E-03 1.817066E-04 4 1.000000E+02 2.017250E-01 -4.497780E-01 3.671646E-01 -1.648593E+00 -1.816893E-04 -8.783410E-06 -6.524680E09 5 1.000000E+02 -1.515997E-01 -8.435646E-02 -2.681982E-02 -1.030060E-01 4.559210E-02 -1.130857E-03 3.520724E-05 6 -9.741344E+01 -9.831733E-03 1.118922E-01 2.815374E-01 -2.367077E-01 1.045810E-01 -1.552187E-02 -9.412587E-04 7 -1.061165E+00 1.462591E-02 -5.364024E-02 2.056707E-02 -5.043438E-02 4.299868E-02 7.724193E-04 8.483838E-04 8 -2.876936E+00 -1.806583E-01 8.125151E-02 -2.526088E-02 6.738411E-03 1.905426E-04 6.552166E-04 -5.571432E-04 9 -3.258671E+00 -1.338385E-01 6.367808E-02 -1.875478E-02 5.520644E-03 -9.207609E-04 -7.674745E-04 1.540536E-04 10 -1.000000E+02 2.331168E-01 -1.204971E-01 4.276933E-02 -9.507607E-03 1.722668E-03 -3.462195E-04 -3.454054E-04 11 -6.234856E-01 2.475775E-01 -9.922292E-02 2.175301E-02 -5.254457E-03 6.688355E-04 -5.805249E-05 2.335760E-04 12 -3.784027E+01 2.223135E-01 2.680607E-02 2.264363E-02 1.330814E-03 1.238055E-03 7.869156E-05 1.672183E04 13 -8.772663E+00 -1.239815E-01 1.046551E-02 -1.493360E-03 6.266411E-03 1.877672E-03 -2.959355E-04 -6.997720E-04

[0347] [Twelfth Embodiment]

[0348] [Overall Specifications]

[0349] f=1.1, Fno=2.2, ω=50deg, Y=1.13, Bf=0.877, TTL=6.314

[0350] [Surface Data]

[0351] Table 24

[0352] Example 12 Surface Data

[0353] Face number R D nd νd Remark 1* -30.5182 0.7548 1.545 56 plastic 2* 1.3797 1.0731 3 (Aperture) ∞ 0.4119 4* -212.7405 0.2645 1.715 12.3 plastic 5* 40.0012 0.1010 6* -85.2320 1.0195 1.589 61.2 Glass 7* -0.9333 0.0750 8* 1.1458 0.2500 1.715 12.3 plastic 9* 0.8985 0.3747 10* -11.1092 0.8071 1.589 61.2 Glass 11* -1.4510 0.0500 12* 1.6897 0.2547 1.715 12.3 plastic 13* 0.9412 0.2992 14 ∞ 0.3000 1.517 64.2 Glass (cover) 15 ∞ 0.3802 Image ∞

[0354] *Aspherical

[0355] [Aspherical Data]

[0356] Table 25

[0357] Example 12 Aspherical Data

[0358] Face number K A4 A6 A8 A10 A12 A14 A16 1 7.764980E+01 7.149017E-02 -2.101993E-02 6.381497E-03 -1.166030E-03 1.116375E-04 -1.071044E-06 -3.061158E-07 2 1.290052E+00 2.274677E-02 1.071007E-01 -3.547582E-02 3.672132E-02 -5.581759E-03 1.282064E-03 1.817066E-04 4 -4.438445E+01 -1.681930E-01 -3.985626E-01 3.875479E-01 -1.245173E+00 -1.816887E-04 -8.783359E-06 -6.517955E-09 5 9.969930E+01 -1.402448E-01 -6.524506E-02 -1.227548E-03 -1.247900E-01 4.312458E-02 -5.327080E-03 3.562620E-05 6 -5.397715E+00 -1.170020E-02 -1.126978E-01 2.813679E-01 -2.373082E-01 1.043025E-01 -1.406604E-02 -1.879268E-03 7 -1.090601E+00 1.829177E-02 -5.304026E-02 2.025519E-02 -5.086895E-02 4.240839E-02 2.705649E-04 2.390091E-04 8 -3.244959E+00 -1.826487E-01 8.142465E-02 -2.461539E-02 7.269773E-03 4.317944E-04 7.486298E-04 -7.014139E-04 9 -3.776367E+00 -1.331721E-01 6.623855E-02 -1.827140E-02 5.511023E-03 -9.622475E-04 -7.697637E-04 1.863017E-04 10 -1.000000E+02 2.438112E-01 -1.215763E-01 4.262182E-02 -9.348638E-03 1.783369E-03 -3.374546E-04 -3.349500E-04 11 -6.966914E-01 2.498775E-01 9.513961E-02 2.329646E-02 -5.122320E-03 4.952165E-04 -1.977916E-04 1.797986E-04 12 -3.634625E+01 -2.149814E-01 2.861823E-02 2.236937E-02 1.248320E-03 -1.215849E-03 6.157451E-05 -2.378907E-04 13 -9.551393E+00 -1.256748E-01 1.246010E-02 7.162392E-04 6.889342E-03 1.890713E-03 -3.858340E-04 -7.904075E-04

[0359] Label Explanation

[0360] OS (OS1 to OS 12) camera lens

[0361] L1 to L6: First lens to sixth lens

[0362] Im image

[0363] CG optical components

[0364] Zop optical axis

[0365] St Aperture Stop

[0366] 20 camera devices

[0367] 21 Camera elements

[0368] 22 Image processing device

[0369] 30 Portable devices

Claims

1. An imaging lens composed of, in order from an object side toward an image plane side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, wherein the first lens has a negative refractive power, the third lens has a positive refractive power, the fourth lens has a negative refractive power, the fifth lens has a positive refractive power, the sixth lens has a negative refractive power, and the imaging lens satisfies the following conditions, 0 < f1 / f < -2, 5 < |f2| / f, 0.5 < f3 / f < 2, -15 < f4 / f < -3, -5 < f6 / f < -1.5, and 0.4 < d12 / f < 2.5, wherein f is a focal length of an entire system of the imaging lens, f1 is a focal length of the first lens, f2 is a focal length of the second lens, f3 is a focal length of the third lens, f4 is a focal length of the fourth lens, f6 is a focal length of the sixth lens, and d12 is a distance on an optical axis between the first lens and the second lens. At least one of the first lens to the sixth lens satisfies: 10 < νd < 20 and 1.65 < nd < 1.76, wherein νd is an Abbe number with respect to the d line, and nd is a refractive index with respect to the d line. An image-side surface of the first lens is a concave surface, an image-side surface of the second lens is a concave surface, the third lens is a biconvex lens, the fourth lens is a convex-concave lens, an image-side surface of the fifth lens is a convex surface, and the sixth lens is a convex-concave lens. The fifth lens satisfies the following condition: 1.5 < f5 / f < 3.5, wherein f5 is a focal length of the fifth lens.

2. The imaging lens according to claim 1, further satisfying the following condition, the at least one of the first lens to the sixth lens satisfies: 11 < νd < 18 and 1.67 < nd < 1.

73.

3. The imaging lens according to claim 1 or 2, further satisfying the following condition, the at least one of the first lens to the sixth lens satisfies: nd ≧ -0.0078 × νd + 1.78, and nd ≦ -0.0078 × νd + 1.

84. The first lens satisfies the following condition: -3.5 < f1 / f < -2, wherein f is a focal length of an entire system of the imaging lens, and f1 is a focal length of the first lens. The second lens satisfies the following condition: 5 < |f2| / f, wherein f is a focal length of an entire system of the imaging lens, and f2 is a focal length of the second lens. The third lens satisfies the following condition: 0.5 < f3 / f < 2, wherein f is a focal length of an entire system of the imaging lens, and f3 is a focal length of the third lens. The fourth lens satisfies the following condition: -15 < f4 / f < -3, wherein f is a focal length of an entire system of the imaging lens, and f4 is a focal length of the fourth lens. The sixth lens satisfies the following condition: -5 < f6 / f < -1.5, wherein f is a focal length of an entire system of the imaging lens, and f6 is a focal length of the sixth lens.

9. The imaging lens according to claim 1, further satisfying the following condition: 0.4 < d12 / f < 2.5, wherein f is a focal length of an entire system of the imaging lens, and d12 is a distance on an optical axis between the first lens and the second lens.

10. The imaging lens according to claim 1, further satisfying the following conditions: 20 < |νd2- νd3| < 70, νd5 > νd6, and 0.5 < f5 / f < 2, wherein νd2 is an Abbe number of the second lens with respect to the d line, νd3 is an Abbe number of the third lens with respect to the d line, νd5 is an Abbe number of the fifth lens with respect to the d line, and νd6 is an Abbe number of the sixth lens with respect to the d line. ​ ​ ​ ​ ​ ​ ​ 4. The camera lens of claim 1, wherein, ​ ​ ​ ​ ​ 5. The camera lens of claim 1, wherein, ​ ​ ​ ​ ​ 6. The camera lens of claim 1, wherein, ​ ​ ​ ​ ​ 7. The camera lens of claim 1, wherein, ​ ​ ​ ​ ​ 8. The camera lens of claim 1, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ νd5 > νd4, wherein νd2 is an Abbe number of the second lens with respect to the d-line, νd3 is an Abbe number of the third lens with respect to the d-line, νd4 is an Abbe number of the fourth lens with respect to the d-line, νd5 is an Abbe number of the fifth lens with respect to the d-line, νd6 is an Abbe number of the sixth lens with respect to the d-line.

11. The imaging lens according to claim 1, further satisfying the following condition: 1.2 < r11 / r12 < 3.0， wherein r11 is a radius of curvature of an object side surface of the sixth lens, r12 is a radius of curvature of an image side surface of the sixth lens.

12. The imaging lens according to claim 1, further comprising a lens having substantially no refractive power.

13. An imaging apparatus comprising: the imaging lens according to any one of claims 1 to 12; and an imaging device that outputs an imaging signal corresponding to an optical image formed by the imaging lens.

14. A portable device comprising the imaging apparatus according to claim 13.

Images