CN109581629B - Optical imaging lens assembly, image capturing device and electronic device - Google Patents
Optical imaging lens assembly, image capturing device and electronic device Download PDFInfo
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- CN109581629B CN109581629B CN201910011916.XA CN201910011916A CN109581629B CN 109581629 B CN109581629 B CN 109581629B CN 201910011916 A CN201910011916 A CN 201910011916A CN 109581629 B CN109581629 B CN 109581629B
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Abstract
The invention discloses an optical imaging lens assembly, an image capturing device and an electronic device. The first lens element with negative refractive power has a concave image-side surface at a paraxial region. The second lens element has a concave object-side surface at a paraxial region. The third lens element with positive refractive power. The fourth lens element with negative refractive power. The fifth lens element with positive refractive power has a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region. The sixth lens element with negative refractive power has a concave image-side surface at a paraxial region thereof, and has at least one convex image-side surface at an off-axis region thereof, wherein both surfaces thereof are aspheric. The total number of lenses in the optical imaging lens group is six. The first lens to the sixth lens are all single and non-cemented lenses. The invention also discloses an image capturing device with the optical imaging lens group and an electronic device with the image capturing device.
Description
The application is a divisional application, and the application date of the original application is as follows: 26 months at 2015; the application numbers are: 201510529900. X; the invention has the name: optical imaging lens assembly, image capturing device and electronic device.
Technical Field
The present disclosure relates to optical imaging lens assemblies, image capturing devices and electronic devices, and particularly to an optical imaging lens assembly and an image capturing device suitable for an electronic device.
Background
In recent years, with the rapid development of miniaturized camera lenses, the demand of miniature image capture modules is increasing, and the photosensitive elements of general camera lenses are not limited to two types, namely, a Charge Coupled Device (CCD) or a Complementary Metal-Oxide Semiconductor (CMOS) Sensor, and with the advance of Semiconductor process technology, the pixel size of the photosensitive elements is reduced, and in addition, the development trend of electronic products is to have a good function, a light weight, a small size, and a good imaging quality, so that the miniaturized camera lenses are the mainstream in the current market.
The conventional high-pixel miniaturized camera lens mounted on an electronic Device mostly adopts a five-piece lens structure, but the requirements of the miniaturized camera lens on pixel and imaging quality are promoted due to the high specification requirements of the camera lens for vehicles, such as advanced Smart phones (Smart phones), Wearable devices (Wearable devices), Tablet Personal computers (Tablet Personal computers), and the like, and the existing five-piece lens group cannot meet the higher-level requirements.
Although conventional six-plate optical systems have been developed to meet the requirement of high image quality. However, the conventional six-piece optical system is difficult to simultaneously shorten the total track length under the condition of satisfying the wide viewing angle requirement, which is not favorable for the miniaturization and light weight of the wide viewing angle optical system.
Disclosure of Invention
The present invention provides an optical imaging lens assembly, an image capturing device and an electronic device, wherein the optical imaging lens assembly includes six lens elements. The first lens element with negative refractive power has a concave image-side surface at a paraxial region, and can provide negative refractive power for the optical imaging lens assembly, thereby improving the field of view and maintaining the imaging quality of the optical imaging lens assembly. The third lens element with positive refractive power can reduce the total track length of the optical imaging lens assembly to maintain its miniaturization. The first lens element and the sixth lens element with negative refractive power have a concave image-side surface at a paraxial region thereof and at least one convex image-side surface at an off-axis region thereof, thereby enlarging the field of view of the optical imaging lens assembly and reducing the total track length of the optical imaging lens assembly to improve the imaging quality.
The present invention provides an optical imaging lens assembly including, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with negative refractive power has a concave image-side surface at a paraxial region. The second lens element has a concave object-side surface at a paraxial region. The third lens element with positive refractive power. The fourth lens element with negative refractive power has a concave image-side surface at a paraxial region. The fifth lens element with positive refractive power has a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region. The sixth lens element with negative refractive power has a concave object-side surface at a paraxial region and a concave image-side surface at a paraxial region, and has at least one convex image-side surface at an off-axis region, wherein the object-side surface and the image-side surface are aspheric. The total number of lenses in the optical imaging lens group is six. The first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are all single and non-cemented lenses. The optical axis distance between the first lens element and the second lens element is T12, the optical axis distance between the second lens element and the third lens element is T23, the optical axis distance between the third lens element and the fourth lens element is T34, the optical axis distance between the fourth lens element and the fifth lens element is T45, and the optical axis distance between the fifth lens element and the sixth lens element is T56, which satisfies the following conditions:
T12/T56< 4.0; and
1.80<(T12+T56)/(T23+T34+T45)。
the present invention further provides an image capturing device, which includes the optical imaging lens assembly and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an image plane of the optical imaging lens assembly.
The invention further provides an electronic device comprising the image capturing device.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 is a schematic view of an image capturing apparatus according to a first embodiment of the present invention;
FIG. 2 is a graph showing the spherical aberration, astigmatism and distortion of the first embodiment in order from left to right;
FIG. 3 is a schematic view of an image capturing apparatus according to a second embodiment of the present invention;
FIG. 4 is a graph showing the spherical aberration, astigmatism and distortion of the second embodiment in order from left to right;
FIG. 5 is a schematic view of an image capturing apparatus according to a third embodiment of the present invention;
FIG. 6 is a graph showing the spherical aberration, astigmatism and distortion of the third embodiment from left to right;
FIG. 7 is a schematic view of an image capturing apparatus according to a fourth embodiment of the present invention;
FIG. 8 is a graph showing the spherical aberration, astigmatism and distortion of the fourth embodiment in order from left to right;
FIG. 9 is a schematic view of an image capturing apparatus according to a fifth embodiment of the present invention;
FIG. 10 is a graph showing the spherical aberration, astigmatism and distortion of the fifth embodiment in order from left to right;
FIG. 11 is a schematic view of an image capturing apparatus according to a sixth embodiment of the present invention;
FIG. 12 is a graph showing the spherical aberration, astigmatism and distortion of the sixth embodiment in order from left to right;
FIG. 13 is a schematic view of an image capturing apparatus according to a seventh embodiment of the invention;
FIG. 14 is a graph showing the spherical aberration, astigmatism and distortion in order from left to right for the seventh embodiment;
FIG. 15 is a schematic diagram illustrating a horizontal displacement on an optical axis from an intersection point of an object-side surface of the first lens element, an effective radius of an image-side surface of the sixth lens element, and an effective radial position of an image-side surface of the sixth lens element of the optical imaging lens assembly of FIG. 1;
FIG. 16 is a schematic diagram of an electronic device according to the present invention;
FIG. 17 is a schematic diagram of another electronic device according to the present invention;
FIG. 18 is a schematic diagram of yet another electronic device according to the present invention.
Wherein the reference numerals
Image capturing device: 10
Aperture ratio of 100: 100, 200, 300, 400, 500, 600, 700
First lens: 110, 210, 310, 410, 510, 610, 710
Image side surface: 112, 212, 312, 412, 512, 612, 712
Second lens (120)/(220), 220, 320, 420, 520, 620, 720)
Image side surface: 122, 222, 322, 422, 522, 622, 722
130, 230, 330, 430, 530, 630, 730
Image side surface: 132, 232, 332, 432, 532, 632, 732
140, 240, 340, 440, 540, 640, 740 fourth lens element
Fifth lens element (150, 250, 350, 450, 550, 650, 750)
Object side surfaces 151, 251, 351, 451, 551, 651 and 751
Object side surface: 161, 261, 361, 461, 561, 661, 761
Image side surface: 162, 262, 362, 462, 562, 662, 762
170, 270, 370, 470, 570, 670, 770 IR-filtering filter
190, 290, 390, 490, 590, 690, 790 parts of electron-sensitive elements
BL: distance between the image side surface of the sixth lens element and the image plane on the optical axis
CT 2: thickness of the second lens on the optical axis
CT 3: thickness of the third lens on the optical axis
CT 6: thickness of the sixth lens element on the optical axis
CRA: chief ray angle of maximum image height of optical imaging lens group
Dr5r 10: the distance between the object side surface of the third lens and the image side surface of the fifth lens on the optical axis
f focal length of optical imaging lens group
f 1: focal length of the first lens
f 2: focal length of the second lens
f 3: focal length of the third lens
f 4: focal length of the fourth lens
f 5: focal length of fifth lens
f6 focal length of sixth lens
Fno aperture value of optical imaging lens group
Half of maximum viewing angle in HFOV-optical imaging lens assembly
Sd 11: maximum effective radius of object-side surface of the first lens
Sd 62: maximum effective radius of image-side surface of sixth lens
sag 62: horizontal displacement from the intersection point of the image-side surface of the sixth lens element on the optical axis to the maximum effective radius position of the image-side surface of the sixth lens element on the optical axis
R11: radius of curvature of object-side surface of sixth lens element
R12: radius of curvature of image-side surface of sixth lens element
T12: the distance between the first lens and the second lens on the optical axis
T23: the distance between the second lens and the third lens on the optical axis
T34: the distance between the third lens and the fourth lens on the optical axis
T45: the distance between the fourth lens and the fifth lens on the optical axis
T56: the distance between the fifth lens and the sixth lens on the optical axis
V2: abbe number of second lens
V4: abbe number of fourth lens
Sigma CT: the sum of the lens thicknesses of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens on the optical axis
Detailed Description
The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:
the optical imaging lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The optical imaging lens group comprises six lenses.
Any two adjacent lenses of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens have an air space on the optical axis, that is, the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are six single non-bonded lenses. Since the process of the cemented lens is more complicated than that of the non-cemented lens, especially the cemented surface of the two lenses needs to have a curved surface with high accuracy so as to achieve high degree of conformity when the two lenses are cemented, and during the cementing process, the shift defect caused by the offset is more likely to affect the overall optical imaging quality. Therefore, the first lens element to the sixth lens element in the optical imaging lens assembly are six single non-cemented lens elements, thereby effectively improving the problems caused by cemented lens elements.
The first lens element with negative refractive power has a concave image-side surface at a paraxial region. Therefore, the negative refractive power required by the optical imaging lens assembly can be provided, which is beneficial to enlarging the field angle of the optical imaging lens assembly and maintaining the imaging quality.
The second lens element can have a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region. Therefore, the astigmatism of the optical imaging lens group can be effectively corrected to improve the imaging quality.
The third lens element can have positive refractive power. Therefore, the total length of the optical imaging lens group is favorably shortened to keep the miniaturization of the optical imaging lens group.
The fourth lens element with negative refractive power has an object-side surface with at least one concave surface in an off-axis direction, and an image-side surface with a concave surface in a paraxial region. Therefore, the aberration of the optical imaging lens group at the paraxial position and the off-axis field can be corrected simultaneously.
At least one surface of the fifth lens element, which is on the object-side surface and the image-side surface, may have at least one inflection point located off-axis. Therefore, the method is beneficial to strengthening and correcting the aberration of the off-axis field so as to improve the peripheral imaging quality.
The sixth lens element with negative refractive power has a concave object-side surface at a paraxial region, a concave image-side surface at a paraxial region, and at least one convex image-side surface at an off-axis region. Therefore, the refractive power distribution of the first lens element to the sixth lens element and the mirror surface shape of the sixth lens element help to enlarge the field angle of the optical imaging lens assembly and shorten the total track length of the optical imaging lens assembly to improve the imaging quality. In addition, the angle of the light rays of the off-axis field of view incident on the photosensitive element can be suppressed, so that the receiving efficiency of the image photosensitive element is increased, and the aberration of the off-axis field of view is further corrected.
The distance between the first lens element and the second lens element is T12, and the distance between the fifth lens element and the sixth lens element is T56, which satisfies the following conditions: T12/T56< 4.0. Therefore, the effective imaging areas of the first lens element and the sixth lens element are more suitable, the double aspheric surface of the sixth lens element can be further effectively exerted to correct the aberration and distortion of the optical imaging lens assembly with wide angle of view, and the imaging quality can be further improved. Preferably, it satisfies the following conditions: T12/T56< 2.0. More preferably, it satisfies the following conditions: T12/T56< 1.5.
The optical axis distance between the first lens element and the second lens element is T12, the optical axis distance between the second lens element and the third lens element is T23, the optical axis distance between the third lens element and the fourth lens element is T34, the optical axis distance between the fourth lens element and the fifth lens element is T45, and the optical axis distance between the fifth lens element and the sixth lens element is T56, which satisfies the following conditions: 1.80< (T12+ T56)/(T23+ T34+ T45). Therefore, the optical imaging lens assembly is beneficial to properly configuring the spacing distance between any two adjacent lenses of the second lens element, the third lens element, the fourth lens element and the fifth lens element on the optical axis, so that the optical imaging lens assembly can simultaneously meet the requirements of wide visual angle, miniaturization and high imaging quality. Preferably, it satisfies the following conditions: 3.0< (T12+ T56)/(T23+ T34+ T45).
Half of the maximum viewing angle of the optical imaging lens assembly is HFOV, and the chief ray angle at the maximum image height of the optical imaging lens assembly (i.e. the imaging height is half of the total length of the diagonal line of the effective sensing area of the electronic photosensitive element) is CRA, which satisfies the following conditions: 30 degrees [ deg. ] < CRA <45 degrees [ deg. ]; and 50 degrees [ deg. ] < HFOV <85 degrees [ deg. ]. Therefore, the angle of the light incident on the electronic photosensitive element can be effectively controlled, the response efficiency of the electronic photosensitive element is improved, the imaging quality is further improved, and the field angle of the optical imaging lens set is effectively enlarged.
In the optical imaging lens assembly disclosed by the invention, the diaphragm is arranged between the two lenses with the minimum spacing distance. Thereby, the field angle of the optical imaging lens group is expanded.
An axial distance between the first lens element and the second lens element is T12, an axial distance between the fifth lens element and the sixth lens element is T56, and an axial distance between an image-side surface of the sixth lens element and an imaging surface is BL, wherein the following conditions are satisfied: 2.5< (T12+ T56)/BL < 6.0. Therefore, the optical imaging lens group is beneficial to shortening the back focal length so as to maintain the miniaturization of the optical imaging lens group.
A maximum effective radius of the object-side surface of the first lens element is Sd11, and a maximum effective radius of the image-side surface of the sixth lens element is Sd62, which satisfy the following conditions: 0.80< | Sd11/Sd62| < 1.10. Therefore, the aperture of the light-in side and the aperture of the light-out side in the optical imaging lens group are close, which is beneficial to the assembly and stability of the optical imaging lens group. Referring to fig. 15, fig. 15 is a schematic diagram illustrating a maximum effective radius of an object-side surface of the first lens element and a maximum effective radius of an image-side surface of the sixth lens element of the optical imaging lens assembly shown in fig. 1.
A radius of curvature of the object-side surface of the sixth lens element is R11, and a radius of curvature of the image-side surface of the sixth lens element is R12, wherein: -0.75< (R11+ R12)/(R11-R12) < 0. Therefore, the aberration of the optical imaging lens group is reduced to maintain high imaging quality.
The second lens has an abbe number of V2, and the fourth lens has an abbe number of V4, which satisfy the following conditions: 35< V2+ V4< 85. Therefore, the chromatic aberration of the optical imaging lens group is corrected, and the chromatic aberration and the astigmatism of the optical imaging lens group are balanced.
The focal length of the optical imaging lens group is f, the focal length of the third lens element is f3, and the focal length of the fourth lens element is f4, which satisfies the following conditions: 2.0< (f/f3) - (f/f4) < 4.0. Therefore, the refractive power distribution of the optical imaging lens group is relatively even, which is beneficial to reducing the sensitivity of the optical imaging lens group and further correcting the aberration of the optical imaging lens group.
The thickness of the second lens element on the optical axis is CT2, the thickness of the third lens element on the optical axis is CT3, the sum of the thicknesses of the first, second, third, fourth, fifth and sixth lens elements on the optical axis is Σ CT (i.e. the sum of the thickness of the first lens element on the optical axis, the thickness of the second lens element on the optical axis CT2, the thickness of the third lens element on the optical axis CT3, the thickness of the fourth lens element on the optical axis, the thickness of the fifth lens element on the optical axis and the thickness of the sixth lens element on the optical axis CT 6), which satisfies the following conditions: Σ CT/(CT2+ CT3) < 2.5. Therefore, the thickness of each lens can be properly configured, and the assembly of each lens is facilitated to improve the manufacturing yield.
An axial horizontal displacement sag62 (positive for the horizontal displacement toward the image side, negative for the horizontal displacement toward the object side) from an intersection point of the image-side surface of the sixth lens element to a maximum effective radius of the image-side surface of the sixth lens element, wherein a thickness of the sixth lens element along the optical axis is CT6, satisfies the following condition: -1.5< sag62/CT6< -0.30. Therefore, the peripheral aberration and the relative illumination of the optical imaging lens group are corrected. Referring to fig. 15, fig. 15 is a schematic diagram illustrating a horizontal displacement on an optical axis from an intersection point of an image-side surface of the sixth lens element of the optical imaging lens assembly of fig. 1 to a maximum effective radius of the image-side surface of the sixth lens element.
The focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, and the focal length of the sixth lens is f6, that is, the focal length of the ith lens is fi, which satisfies the following conditions: i f2 i fi, where i is 1, 3, 4, 5, 6. Therefore, the incident angle change of the large-angle light can be effectively slowed down so as to reduce the aberration.
An axial distance between the first lens element and the second lens element is T12, an axial distance between the fifth lens element and the sixth lens element is T56, and an axial distance between the object-side surface of the third lens element and the image-side surface of the fifth lens element is Dr5r10, wherein the following conditions are satisfied: 0.80< (T12+ T56)/Dr5r 10. Therefore, the distance between the lenses is more appropriate, and the total length of the optical imaging lens assembly is further reduced.
In the optical imaging lens assembly disclosed in the present invention, the aperture can be configured as a front aperture or a middle aperture. The front diaphragm means that the diaphragm is arranged between the object to be shot and the first lens, and the middle diaphragm means that the diaphragm is arranged between the first lens and the imaging surface. If the diaphragm is a front diaphragm, a longer distance is generated between the Exit Pupil (Exit Pupil) of the optical imaging lens group and the imaging plane, so that the optical imaging lens group has a Telecentric (Telecentric) effect, and the image receiving efficiency of a CCD (charge coupled device) or a CMOS (complementary metal oxide semiconductor) of the electronic photosensitive element can be increased; if the aperture is arranged in the middle, the optical imaging lens group is beneficial to enlarging the field angle of the optical imaging lens group, so that the optical imaging lens group has the advantage of a wide-angle lens.
In the optical imaging lens assembly disclosed in the present invention, the lens material can be plastic or glass. When the lens is made of glass, the degree of freedom of the refractive power configuration can be increased. In addition, when the lens is made of plastic, the production cost can be effectively reduced. In addition, an Aspheric Surface (ASP) can be arranged on the surface of the lens, the ASP can be easily made into shapes other than a spherical surface, more control variables are obtained for reducing the aberration, and the number of the lenses required to be used is further reduced, so that the total optical length can be effectively reduced.
In the optical imaging lens assembly disclosed in the present invention, if the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface can be convex at the paraxial region; if the lens surface is concave and the concave position is not defined, it means that the lens surface may be concave at the paraxial region. If the refractive power or focal length of the lens element does not define its local position, it means that the refractive power or focal length of the lens element is the refractive power or focal length of the lens element at the paraxial region.
In the optical imaging lens assembly disclosed in the present invention, the Image Surface of the optical imaging lens assembly may be a plane or a curved Surface with any curvature, especially a curved Surface with a concave Surface facing the object side, depending on the corresponding electronic photosensitive element.
The optical imaging lens assembly disclosed in the present invention can be provided with at least one Stop, the position of which can be set in front of the first lens element, between the lens elements or behind the last lens element, the Stop being of the type of flare Stop (Glare Stop) or Field Stop (Field Stop) for reducing stray light and improving image quality.
The present invention further provides an image capturing device, which comprises the optical imaging lens assembly and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on an imaging surface of the optical imaging lens assembly. Preferably, the image capturing device may further include a Barrel (Barrel Member), a Holding Member (Holding Member), or a combination thereof.
Referring to fig. 16, 17 and 18, the image capturing apparatus 10 can be applied to a smart phone (as shown in fig. 16), a tablet computer (as shown in fig. 17), a wearable apparatus (as shown in fig. 18), and the like in many ways. Preferably, the electronic device may further include a Control unit (Control Units), a Display unit (Display Units), a Storage unit (Storage Units), a Random Access Memory (RAM), or a combination thereof.
The optical imaging lens group can be applied to a mobile focusing optical system according to the requirements, and has the characteristics of excellent aberration correction and good imaging quality. The invention can also be applied to electronic devices such as three-dimensional (3D) image acquisition, digital cameras, mobile devices, tablet computers, smart televisions, network monitoring equipment, driving recorders, backing developing devices, motion sensing game machines, wearable devices and the like in many aspects. The electronic device disclosed in the foregoing is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the image capturing device of the present invention.
The following provides a detailed description of the embodiments with reference to the accompanying drawings.
< first embodiment >
Referring to fig. 1 and fig. 2, wherein fig. 1 is a schematic view of an image capturing device according to a first embodiment of the invention, and fig. 2 is a graph of spherical aberration, astigmatism and distortion in the first embodiment from left to right. As shown in fig. 1, the image capturing device includes an optical imaging lens assembly (not shown) and an electronic photosensitive element 190. The optical imaging lens assembly includes, in order from an object side to an image side, a first lens element 110, a second lens element 120, an aperture stop 100, a third lens element 130, a fourth lens element 140, a fifth lens element 150, a sixth lens element 160, an infrared-cut Filter (IR-cut Filter)170 and an image plane 180. The electron sensor 190 is disposed on the image plane 180. The optical imaging lens group comprises six single non-cemented lenses (110) and 160).
The first lens element 110 with negative refractive power has a convex object-side surface 111 at a paraxial region and a concave image-side surface 112 at a paraxial region, and is made of plastic material.
The second lens element 120 with positive refractive power has a convex object-side surface 121 at a paraxial region and a convex image-side surface 122 at a paraxial region, and is made of plastic material.
The third lens element 130 with positive refractive power has a convex object-side surface 131 at a paraxial region and a convex image-side surface 132 at a paraxial region, and is made of plastic material.
The fourth lens element 140 with negative refractive power has a concave object-side surface 141 at a paraxial region thereof and a concave image-side surface 142 at a paraxial region thereof, and is made of plastic material, wherein both surfaces are aspheric, and the object-side surface 141 has at least one concave surface at an off-axis region thereof.
The fifth lens element 150 with positive refractive power has an object-side surface 151 being convex in a paraxial region thereof and an image-side surface 152 being convex in a paraxial region thereof, and both surfaces are aspheric, and the object-side surface 151 and the image-side surface 152 have at least one inflection point in an off-axis region thereof.
The sixth lens element 160 with negative refractive power has a concave object-side surface 161 at a paraxial region and a concave image-side surface 162 at a paraxial region, and is made of plastic material, wherein both surfaces are aspheric, and the image-side surface 162 has at least one convex surface at an off-axis region.
The ir-cut filter 170 is made of glass, and is disposed between the sixth lens element 160 and the image plane 180, and does not affect the focal length of the optical imaging lens assembly.
The curve equation of the aspherical surface of each lens described above is as follows:
(ii) a Wherein:
x: the distance between a point on the aspheric surface, which is Y away from the optical axis, and the relative distance between the point and a tangent plane tangent to the intersection point on the aspheric surface optical axis;
y: the perpendicular distance between a point on the aspheric curve and the optical axis;
r: a radius of curvature;
k: the cone coefficient; and
ai: the ith order aspheric coefficients.
In the optical imaging lens group of the first embodiment, the focal length of the optical imaging lens group is F, the aperture value (F-number) of the optical imaging lens group is Fno, and half of the maximum field of view in the optical imaging lens group is HFOV, which has the following values: f 3.68mm (mm), Fno 2.45, HFOV 57.7 degrees (deg.).
The chief ray angle at the maximum image height of the optical imaging lens group is CRA, which satisfies the following conditions: CRA 36.1 degrees [ deg. ].
The second lens 120 has an abbe number of V2, and the fourth lens 140 has an abbe number of V4, which satisfy the following conditions: v2+ V4 ═ 43.9.
The distance between the first lens element 110 and the second lens element 120 is T12, and the distance between the fifth lens element 150 and the sixth lens element 160 is T56, which satisfies the following conditions: T12/T56 is 1.33.
The optical axis distance between the first lens element 110 and the second lens element 120 is T12, the optical axis distance between the second lens element 120 and the third lens element 130 is T23, the optical axis distance between the third lens element 130 and the fourth lens element 140 is T34, the optical axis distance between the fourth lens element 140 and the fifth lens element 150 is T45, and the optical axis distance between the fifth lens element 150 and the sixth lens element 160 is T56, which satisfy the following conditions: (T12+ T56)/(T23+ T34+ T45) ═ 4.95.
An axial distance between the first lens element 110 and the second lens element 120 is T12, an axial distance between the fifth lens element 150 and the sixth lens element 160 is T56, and an axial distance between the image-side surface 162 of the sixth lens element and the image plane 180 is BL, which satisfy the following conditions: (T12+ T56)/BL is 4.01.
An axial distance between the first lens element 110 and the second lens element 120 is T12, an axial distance between the fifth lens element 150 and the sixth lens element 160 is T56, and an axial distance between the third object-side surface 131 and the fifth image-side surface 152 is Dr5r10, which satisfies the following conditions: (T12+ T56)/Dr5r10 ═ 1.22.
The optical axis thickness of the second lens element 120 is CT2, the optical axis thickness of the third lens element 130 is CT3, and the total of the optical axis lens thicknesses of the first lens element 110, the second lens element 120, the third lens element 130, the fourth lens element 140, the fifth lens element 150, and the sixth lens element 160 is Σ CT, which satisfies the following conditions: Σ CT/(CT2+ CT3) is 2.11.
An axial horizontal displacement sa 62 from an intersection point of the image-side surface 162 of the sixth lens element to the maximum effective radius of the image-side surface 162 of the sixth lens element, and an axial thickness CT6 of the sixth lens element 160 satisfy the following conditions: sag62/CT6 is-0.60.
A radius of curvature of the sixth lens object-side surface 161 is R11, and a radius of curvature of the sixth lens image-side surface 162 is R12, which satisfy the following conditions: (R11+ R12)/(R11-R12) — 0.40.
The focal length of the optical imaging lens group is f, the focal length of the third lens element 130 is f3, and the focal length of the fourth lens element 140 is f4, which satisfies the following conditions: (f/f3) - (f/f4) ═ 2.17.
A maximum effective radius of the first lens object-side surface 111 is Sd11, and a maximum effective radius of the sixth lens image-side surface 162 is Sd62, which satisfy the following conditions: 0.96 | Sd11/Sd62 |.
The following table one and table two are referred to cooperatively.
In table one, the detailed structural data of the first embodiment of fig. 1 are shown, wherein the units of the radius of curvature, the thickness and the focal length are millimeters (mm), and surfaces 0 to 16 sequentially represent surfaces from an object side to an image side. Table two shows the aspheric data of the first embodiment, where k is the cone coefficient in the aspheric curve equation, and a4 to a16 represent the 4 th to 16 th order aspheric coefficients of each surface. In addition, the following tables of the embodiments correspond to the schematic diagrams and aberration graphs of the embodiments, and the definitions of the data in the tables are the same as those of the first and second tables of the first embodiment, which will not be described herein.
< second embodiment >
Referring to fig. 3 and fig. 4, wherein fig. 3 is a schematic view of an image capturing apparatus according to a second embodiment of the invention, and fig. 4 is a graph of spherical aberration, astigmatism and distortion of the second embodiment in order from left to right. As shown in fig. 3, the image capturing device includes an optical imaging lens assembly (not shown) and an electronic photosensitive element 290. The optical imaging lens assembly includes, in order from an object side to an image side, a first lens element 210, a second lens element 220, an aperture stop 200, a third lens element 230, a fourth lens element 240, a fifth lens element 250, a sixth lens element 260, an ir-cut filter 270 and an image plane 280. The electron sensor 290 is disposed on the image plane 280. The optical imaging lens group comprises six single non-cemented lenses (210-260).
The first lens element 210 with negative refractive power has a convex object-side surface 211 at a paraxial region and a concave image-side surface 212 at a paraxial region, and is made of plastic material.
The second lens element 220 with positive refractive power has a concave object-side surface 221 at a paraxial region and a convex image-side surface 222 at a paraxial region, and is made of plastic material.
The third lens element 230 with positive refractive power has a convex object-side surface 231 at a paraxial region and a convex image-side surface 232 at a paraxial region, and is made of plastic material.
The fourth lens element 240 with negative refractive power has a concave object-side surface 241 in a paraxial region thereof, a concave image-side surface 242 in a paraxial region thereof, and both surfaces thereof are aspheric, and the object-side surface 241 has at least one concave surface in an off-axis region thereof.
The fifth lens element 250 with positive refractive power has a concave object-side surface 251 and a convex image-side surface 252 at a paraxial region, both surfaces being aspheric, and the image-side surface 252 has at least one inflection point at an off-axis region.
The sixth lens element 260 with negative refractive power has a concave object-side surface 261 and a concave image-side surface 262 both being aspheric, and the image-side surface 262 is convex at an off-axis position.
The ir-cut filter 270 is made of glass, and is disposed between the sixth lens element 260 and the image plane 280 without affecting the focal length of the optical imaging lens assembly.
Please refer to the following table three and table four.
In the second embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment. In addition, the definitions described in the following table are the same as those in the first embodiment, and are not repeated herein.
< third embodiment >
Referring to fig. 5 and fig. 6, wherein fig. 5 is a schematic view of an image capturing apparatus according to a third embodiment of the invention, and fig. 6 is a graph showing spherical aberration, astigmatism and distortion in order from left to right in the third embodiment. As shown in fig. 5, the image capturing device includes an optical imaging lens assembly (not shown) and an electronic photosensitive element 390. The optical imaging lens assembly includes, in order from an object side to an image side, a first lens element 310, a second lens element 320, an aperture stop 300, a third lens element 330, a fourth lens element 340, a fifth lens element 350, a sixth lens element 360, an ir-cut filter 370 and an image plane 380. The electro-optic element 390 is disposed on the image plane 380. The optical imaging lens group comprises six single non-cemented lenses (310-360).
The first lens element 310 with negative refractive power has a convex object-side surface 311 at a paraxial region and a concave image-side surface 312 at a paraxial region, and is made of plastic material.
The second lens element 320 with positive refractive power has a concave object-side surface 321 at a paraxial region and a convex image-side surface 322 at a paraxial region, and is made of plastic material.
The third lens element 330 with positive refractive power has a convex object-side surface 331 at a paraxial region and a convex image-side surface 332 at a paraxial region, and is made of plastic material.
The fourth lens element 340 with negative refractive power has a concave object-side surface 341 in a paraxial region thereof, a concave image-side surface 342 in a paraxial region thereof, and both surfaces thereof are aspheric, and the object-side surface 341 has at least one concave surface in an off-axis region thereof.
The fifth lens element 350 with positive refractive power has a convex object-side surface 351 at a paraxial region and a convex image-side surface 352 at a paraxial region, and is aspheric, and the image-side surface 352 has at least one inflection point at an off-axis region.
The sixth lens element 360 with negative refractive power has a concave object-side surface 361 at a paraxial region and a concave image-side surface 362 at a paraxial region, both surfaces being aspheric, and the image-side surface 362 has at least one convex surface at an off-axis region.
The ir-cut filter 370 is made of glass, and is disposed between the sixth lens element 360 and the image plane 380 without affecting the focal length of the optical imaging lens assembly.
Please refer to table five and table six below.
In the third embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment. In addition, the definitions described in the following table are the same as those in the first embodiment, and are not repeated herein.
The distance between the first lens element and the second lens element on the optical axis is T12, the distance between the second lens element and the third lens element on the optical axis is T23, the distance between the third lens element and the fourth lens element on the optical axis is T34, the distance between the fourth lens element and the fifth lens element on the optical axis is T45, and the distance between the fifth lens element and the sixth lens element on the optical axis is T56, wherein the distance between the second lens element and the third lens element on the optical axis is minimum, and the aperture stop is disposed between the second lens element and the third lens element with the minimum distance.
< fourth embodiment >
Referring to fig. 7 and 8, wherein fig. 7 is a schematic view of an image capturing apparatus according to a fourth embodiment of the invention, and fig. 8 is a graph showing spherical aberration, astigmatism and distortion in the fourth embodiment from left to right. As shown in fig. 7, the image capturing device includes an optical imaging lens assembly (not shown) and an electronic photosensitive element 490. The optical imaging lens assembly includes, in order from an object side to an image side, a first lens element 410, a second lens element 420, an aperture stop 400, a third lens element 430, a fourth lens element 440, a fifth lens element 450, a sixth lens element 460, an ir-cut filter 470 and an image plane 480. The image sensor 490 is disposed on the image plane 480. The optical imaging lens group comprises six single non-cemented lenses (410-460).
The first lens element 410 with negative refractive power has a convex object-side surface 411 at a paraxial region and a concave image-side surface 412 at a paraxial region, and is made of plastic material.
The second lens element 420 with positive refractive power has a concave object-side surface 421 at a paraxial region and a convex image-side surface 422 at a paraxial region, and is made of plastic material.
The third lens element 430 with positive refractive power has a convex object-side surface 431 at a paraxial region and a convex image-side surface 432 at a paraxial region, and is made of plastic material.
The fourth lens element 440 with negative refractive power has a concave object-side surface 441 at a paraxial region and a concave image-side surface 442 at a paraxial region, and is made of plastic material, wherein both surfaces are aspheric, and the object-side surface 441 has at least one concave surface at an off-axis region.
The fifth lens element 450 with positive refractive power has a concave object-side surface 451 at a paraxial region and a convex image-side surface 452 at a paraxial region, and both surfaces are aspheric, and the object-side surface 451 and the image-side surface 452 have at least one inflection point at an off-axis region.
The sixth lens element 460 with negative refractive power has a concave object-side surface 461 at a paraxial region and a concave image-side surface 462 at a paraxial region, and both surfaces are aspheric, and the image-side surface 462 has at least one convex surface.
The ir-cut filter 470 is made of glass, and is disposed between the sixth lens element 460 and the image plane 480, and does not affect the focal length of the optical imaging lens assembly.
Please refer to table seven and table eight below.
In the fourth embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment. In addition, the definitions described in the following table are the same as those in the first embodiment, and are not repeated herein.
The distance between the first lens element and the second lens element on the optical axis is T12, the distance between the second lens element and the third lens element on the optical axis is T23, the distance between the third lens element and the fourth lens element on the optical axis is T34, the distance between the fourth lens element and the fifth lens element on the optical axis is T45, and the distance between the fifth lens element and the sixth lens element on the optical axis is T56, wherein the distance between the second lens element and the third lens element on the optical axis is minimum, and the aperture stop is disposed between the second lens element and the third lens element with the minimum distance.
< fifth embodiment >
Referring to fig. 9 and 10, fig. 9 is a schematic view of an image capturing apparatus according to a fifth embodiment of the invention, and fig. 10 is a graph showing spherical aberration, astigmatism and distortion in the fifth embodiment from left to right. As shown in fig. 9, the image capturing device includes an optical imaging lens assembly (not numbered) and an electronic photosensitive element 590. The optical imaging lens assembly includes, in order from an object side to an image side, a first lens element 510, a second lens element 520, an aperture stop 500, a third lens element 530, a fourth lens element 540, a fifth lens element 550, a sixth lens element 560, an ir-cut filter element 570 and an image plane 580. The electronic photosensitive element 590 is disposed on the image plane 580. The optical imaging lens group comprises six single non-cemented lenses (510-560).
The first lens element 510 with negative refractive power has a convex object-side surface 511 at a paraxial region and a concave image-side surface 512 at a paraxial region, and is made of plastic material.
The second lens element 520 with positive refractive power has a concave object-side surface 521 at a paraxial region and a convex image-side surface 522 at a paraxial region, and is made of plastic material.
The third lens element 530 with positive refractive power has a convex object-side surface 531 at a paraxial region and a convex image-side surface 532 at a paraxial region, and is made of plastic material.
The fourth lens element 540 with negative refractive power has a concave object-side surface 541 at a paraxial region and a concave image-side surface 542 at a paraxial region, both surfaces being aspheric, and the object-side surface 541 has at least one concave surface at an off-axis region.
The fifth lens element 550 with positive refractive power has a concave object-side surface 551 at a paraxial region and a convex image-side surface 552 at a paraxial region, and both surfaces are aspheric, and the object-side surface 551 and the image-side surface 552 have at least one inflection point at an off-axis region.
The sixth lens element 560 with negative refractive power has a concave object-side surface 561 at a paraxial region and a concave image-side surface 562 at a paraxial region, and both surfaces are aspheric, and the image-side surface 562 has at least one convex surface at an off-axis region.
The ir-cut filter 570 is made of glass, and is disposed between the sixth lens element 560 and the image plane 580, and does not affect the focal length of the optical imaging lens assembly.
Please refer to table nine and table ten below.
In the fifth embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment. In addition, the definitions described in the following table are the same as those in the first embodiment, and are not repeated herein.
The distance between the first lens element and the second lens element on the optical axis is T12, the distance between the second lens element and the third lens element on the optical axis is T23, the distance between the third lens element and the fourth lens element on the optical axis is T34, the distance between the fourth lens element and the fifth lens element on the optical axis is T45, and the distance between the fifth lens element and the sixth lens element on the optical axis is T56, wherein the distance between the second lens element and the third lens element on the optical axis is minimum, and the aperture stop is disposed between the second lens element and the third lens element with the minimum distance.
< sixth embodiment >
Referring to fig. 11 and 12, wherein fig. 11 is a schematic view of an image capturing apparatus according to a sixth embodiment of the invention, and fig. 12 is a graph showing spherical aberration, astigmatism and distortion in the sixth embodiment from left to right. As shown in fig. 11, the image capturing device includes an optical imaging lens assembly (not shown) and an electronic photosensitive element 690. The optical imaging lens assembly includes, in order from an object side to an image side, a first lens element 610, a second lens element 620, an aperture stop 600, a third lens element 630, a fourth lens element 640, a fifth lens element 650, a sixth lens element 660, an ir-cut filter element 670 and an image plane 680. The electro-optic device 690 is disposed on the image plane 680. The optical imaging lens assembly has six single non-cemented lenses (610-660).
The first lens element 610 with negative refractive power has a convex object-side surface 611 at a paraxial region and a concave image-side surface 612 at a paraxial region, and is made of plastic material.
The second lens element 620 with positive refractive power has a concave object-side surface 621 at a paraxial region and a convex image-side surface 622 at a paraxial region, and is made of plastic material.
The third lens element 630 with positive refractive power has a convex object-side surface 631 and a convex image-side surface 632 at a paraxial region, and is made of plastic material.
The fourth lens element 640 with negative refractive power has a concave object-side surface 641 at a paraxial region, and a concave image-side surface 642 at a paraxial region, both surfaces being aspheric, and the object-side surface 641 has at least one concave surface at an off-axis region.
The fifth lens element 650 with positive refractive power has a concave object-side surface 651 at a paraxial region thereof and a convex image-side surface 652 at a paraxial region thereof, and is made of plastic material, wherein both surfaces are aspheric, and the object-side surface 651 and the image-side surface 652 have at least one inflection point at an off-axis region thereof.
The sixth lens element 660 with negative refractive power has a concave object-side surface 661 at a paraxial region, a concave image-side surface 662 at a paraxial region, both surfaces being aspheric, and an image-side surface 662 having at least one convex surface at an off-axis region.
The ir-cut filter 670 is made of glass, and is disposed between the sixth lens element 660 and the image plane 680 without affecting the focal length of the optical imaging lens assembly.
Please refer to the following table eleven and table twelve.
In the sixth embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment. In addition, the definitions described in the following table are the same as those in the first embodiment, and are not repeated herein.
The distance between the first lens element and the second lens element on the optical axis is T12, the distance between the second lens element and the third lens element on the optical axis is T23, the distance between the third lens element and the fourth lens element on the optical axis is T34, the distance between the fourth lens element and the fifth lens element on the optical axis is T45, and the distance between the fifth lens element and the sixth lens element on the optical axis is T56, wherein the distance between the second lens element and the third lens element on the optical axis is minimum, and the aperture stop is disposed between the second lens element and the third lens element with the minimum distance.
< seventh embodiment >
Referring to fig. 13 and 14, wherein fig. 13 is a schematic view of an image capturing apparatus according to a seventh embodiment of the invention, and fig. 14 is a graph showing spherical aberration, astigmatism and distortion in the seventh embodiment from left to right. As shown in fig. 13, the image capturing device includes an optical imaging lens assembly (not shown) and an electronic photosensitive element 790. The optical imaging lens assembly includes, in order from an object side to an image side, a first lens element 710, a second lens element 720, an aperture stop 700, a third lens element 730, a fourth lens element 740, a fifth lens element 750, a sixth lens element 760, an ir-cut filter 770 and an image plane 780. The electronic photosensitive element 790 is disposed on the image plane 780. The optical imaging lens assembly has six non-cemented lenses (710 and 760).
The first lens element 710 with negative refractive power has a convex object-side surface 711 at a paraxial region and a concave image-side surface 712 at a paraxial region, and is made of plastic material.
The second lens element 720 with negative refractive power has a concave object-side surface 721 at a paraxial region and a concave image-side surface 722 at a paraxial region, and is made of plastic material.
The third lens element 730 with positive refractive power has a convex object-side surface 731 at a paraxial region and a convex image-side surface 732 at a paraxial region, and is made of plastic material.
The fourth lens element 740 with negative refractive power has an object-side surface 741 being convex in a paraxial region thereof and an image-side surface 742 being concave in a paraxial region thereof, both surfaces being aspheric, and the object-side surface 741 having at least one concave surface in an off-axis region thereof.
The fifth lens element 750 with positive refractive power has a convex object-side surface 751 at a paraxial region and a convex image-side surface 752 at a paraxial region, and is made of plastic material, wherein both surfaces are aspheric, and the object-side surface 751 and the image-side surface 752 have at least one inflection point at an off-axis region.
The sixth lens element 760 with negative refractive power has a concave object-side surface 761 at a paraxial region and a concave image-side surface 762 at a paraxial region, wherein both surfaces are aspheric, and the image-side surface 762 has at least one convex surface at an off-axis region.
The ir-cut filter 770 is made of glass and disposed between the sixth lens element 760 and the image plane 780 without affecting the focal length of the optical imaging lens assembly.
Please refer to the following thirteen tables and fourteen tables.
In the seventh embodiment, the curve equation of the aspherical surface represents the form as in the first embodiment. In addition, the definitions described in the following table are the same as those in the first embodiment, and are not repeated herein.
The image capturing device can be mounted in the electronic device. The invention discloses an optical imaging lens group using six refractive power lenses. The first lens element with negative refractive power and the sixth lens element with concave object-side surface and concave image-side surface at paraxial region thereof can enlarge the field of view of the optical imaging lens assembly and shorten the total track length of the optical imaging lens assembly to improve the imaging quality. When specific conditions are met, the effective imaging areas of the first lens element and the sixth lens element are proper, so that the double aspheric surface characteristic of the sixth lens element can be further effectively exerted, the aberration and distortion of the optical imaging lens assembly with a wide angle of view can be corrected, and the imaging quality can be further improved. In addition, it is helpful to properly arrange the distance between any two adjacent lenses of the second lens element, the third lens element, the fourth lens element and the fifth lens element on the optical axis, so that the optical imaging lens assembly can satisfy the requirements of wide viewing angle, miniaturization and high imaging quality.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (15)
1. An optical imaging lens assembly, in order from an object side to an image side comprising:
a first lens element with negative refractive power having a concave image-side surface at paraxial region;
a second lens element having a concave object-side surface at a paraxial region;
a third lens element with positive refractive power;
a fourth lens element with negative refractive power having a concave image-side surface at paraxial region;
a fifth lens element with positive refractive power having a concave object-side surface and a convex image-side surface at a paraxial region; and
a sixth lens element with negative refractive power having a concave object-side surface at a paraxial region and a concave image-side surface at a paraxial region, the image-side surface of the sixth lens element having at least one convex surface at an off-axis region, wherein the object-side surface and the image-side surface are aspheric;
wherein the total number of the lenses in the optical imaging lens assembly is six, and the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element and the sixth lens element are all single and non-cemented lenses;
wherein an axial distance between the first lens element and the second lens element is T12, an axial distance between the second lens element and the third lens element is T23, an axial distance between the third lens element and the fourth lens element is T34, an axial distance between the fourth lens element and the fifth lens element is T45, an axial distance between the fifth lens element and the sixth lens element is T56, a chief ray angle at a maximum image height of the optical imaging lens assembly is CRA, and half of a maximum view angle of the optical imaging lens assembly is HFOV, and satisfies the following conditions:
T12/T56<4.0；
1.80<(T12+T56)/(T23+T34+T45)；
30 degrees < CRA <45 degrees; and
50 degrees < HFOV <85 degrees.
2. The optical imaging lens assembly of claim 1, wherein the image-side surface of the second lens element is convex at paraxial region.
3. The optical imaging lens assembly of claim 1, further comprising an aperture stop, wherein the aperture stop is disposed between two adjacent lenses having the smallest distance value.
4. The optical imaging lens assembly of claim 1 wherein the maximum effective radius of the object-side surface of the first lens element is Sd11, and the maximum effective radius of the image-side surface of the sixth lens element is Sd62, satisfying the following condition:
0.80<|Sd11/Sd62|<1.10。
5. the optical imaging lens assembly of claim 1 wherein the second lens element has an abbe number of V2 and the fourth lens element has an abbe number of V4, wherein the following conditions are satisfied:
35<V2+V4<85。
6. the optical imaging lens assembly of claim 1, wherein the focal length of the optical imaging lens assembly is f, the focal length of the third lens element is f3, and the focal length of the fourth lens element is f4, which satisfies the following conditions:
2.0<(f/f3)–(f/f4)<4.0。
7. the optical imaging lens assembly of claim 1, wherein at least one of the object-side surface and the image-side surface of the fifth lens element has at least one inflection point located off-axis.
8. The optical imaging lens assembly of claim 1 wherein the second lens element has an axial thickness CT2, the third lens element has an axial thickness CT3, and the sum of the respective axial lens thicknesses of the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element and the sixth lens element is Σ CT, which satisfies the following conditions:
ΣCT/(CT2+CT3)<2.5。
9. the optical imaging lens assembly of claim 1 wherein the horizontal displacement along the optical axis from the intersection of the image-side surface of the sixth lens element to the maximum effective radius of the image-side surface of the sixth lens element is sag62, and the thickness along the optical axis of the sixth lens element is CT6, wherein:
-1.5<sag62/CT6<-0.30。
10. the optical imaging lens assembly of claim 1 wherein the focal length of the first lens element is f1, the focal length of the second lens element is f2, the focal length of the third lens element is f3, the focal length of the fourth lens element is f4, the focal length of the fifth lens element is f5, the focal length of the sixth lens element is f6, also denoted as fi, which satisfies the following condition:
i f2 i fi, where i is 1, 3, 4, 5, 6.
11. The optical imaging lens assembly of claim 1, wherein an axial distance between the first lens element and the second lens element is T12, an axial distance between the fifth lens element and the sixth lens element is T56, and an axial distance between an object-side surface of the third lens element and an image-side surface of the fifth lens element is Dr5r10, wherein the following conditions are satisfied:
0.80<(T12+T56)/Dr5r10。
12. the optical imaging lens assembly of claim 1, wherein the distance separating the first lens element and the second lens element is T12, the distance separating the fifth lens element and the sixth lens element is T56, and the distance separating the image-side surface of the sixth lens element from an imaging plane is BL, wherein the following conditions are satisfied:
2.5<(T12+T56)/BL<6.0。
13. the optical imaging lens assembly of claim 1 wherein the second lens element has positive refractive power.
14. An image capturing device, comprising:
the optical imaging lens group of claim 1; and
and the electronic photosensitive element is arranged on an imaging surface of the optical imaging lens group.
15. An electronic device, comprising:
the image capturing apparatus of claim 14.
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| CN108061960B (en) * | 2018-01-18 | 2023-08-25 | 平湖动态电子有限公司 | Lens of vehicle-mounted streaming media camera |
| CN111077645B (en) * | 2019-12-23 | 2021-12-14 | 诚瑞光学(常州)股份有限公司 | Image pickup optical lens |
| WO2021128238A1 (en) * | 2019-12-27 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
| CN111965786B (en) * | 2020-08-25 | 2023-05-30 | 玉晶光电(厦门)有限公司 | Optical imaging lens |
| CN111929871B (en) * | 2020-09-21 | 2020-12-18 | 常州市瑞泰光电有限公司 | Image pickup optical lens |
| WO2022089603A1 (en) * | 2020-10-30 | 2022-05-05 | 宁波舜宇车载光学技术有限公司 | Optical lens and electronic device |
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| JP2014044250A (en) * | 2012-08-24 | 2014-03-13 | Sony Corp | Image pickup lens and image pickup device |
| US8953261B2 (en) * | 2013-03-03 | 2015-02-10 | Newmax Technology Co., Ltd. | Six-piece optical lens system |
| JP2014240918A (en) * | 2013-06-12 | 2014-12-25 | 富士フイルム株式会社 | Imaging lens and imaging apparatus including imaging lens |
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