TWM589285U - Optical imaging lens, imaging device and electronic device having the same - Google Patents

Abstract

An optical imaging lens including, in order from an object side to an image side, a first lens having negative refractive power, a second lens having positive refractive power, a meniscus third lens having positive refractive power, an aperture stop, a fourth lens having positive refractive power and a fifth lens having negative refractive power. The first lens includes an image-side surface being concave; the second lens includes an object-side surface being convex; the third lens includes an object-side surface being concave and an image-side surface being convex; the fourth lens includes an object-side surface and an image-side surface which are both convex; the fifth lens includes an object-side surface being concave and an image-side surface being convex. The fourth lens and the fifth lens are adhered to form a cemented lens. The imaging lens includes a total of five elements. When specific conditions are satisfied, it is favorable to provide a compact, wide-angle imaging lens capable of capturing good quality images.

Description

Optical camera lens group, imaging device and electronic device

This creation relates to an optical camera lens group and imaging device, in particular, to an optical camera lens group and imaging device suitable for a vehicle photography electronic device or a surveillance camera system.

In recent years, due to the popularity of digital electronic products, including digital cameras, notebook computers, mobile phones, tablets, etc., has driven the vigorous development of optical lens modules. In order to be suitable for various applications, such as smart phones, sports cameras, driving recorders, reversing camera devices, and home surveillance camera equipment, the demand for the quality of optical lens modules is also increasing.

In addition to the gradual development towards miniaturization, optical lens modules also require a wider field of view and good imaging quality. However, increasing the imaging angle of the optical lens module often causes the total length of the lens group to increase (the volume becomes larger), or makes the aberration difficult to correct. Taking US Patent No. 7,623,305 as an example, it includes a first lens group with negative refractive power, an aperture, and a second lens group with positive refractive power; the first lens group includes a first lens with negative refractive power and a positive refractive power The second lens; the second lens group includes a third lens with positive refractive power, a fourth lens with negative refractive power, and a fifth lens with positive refractive power. Although the optical lens assembly structure disclosed in this patent can effectively reduce the distortion aberration of the lens imaging, its shooting angle can only reach about 70 degrees, which cannot meet the needs of today's consumers.

Therefore, how to provide a small optical lens module with a wide viewing angle and good imaging quality has become a problem that people in this technical field are eager to solve.

Therefore, in order to solve the above problems, the present invention provides an optical imaging lens group, which includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in order from the object side to the image side. Among them, the first lens has negative refractive power and its image side is concave; the second lens has positive refractive power and its object side is convex; the third lens has positive refractive power and its object side is concave and the image side is convex; The four lenses have positive refractive power, and the object side and the image side are convex; the fifth lens has negative refractive power, the object side is concave, and the image side is convex; the fourth lens and the fifth lens are cemented lenses, and the fourth The lens and the fifth lens include at least one lens with high dispersion coefficient and one lens with low dispersion coefficient; the total number of lenses in this optical imaging lens group is five; the refractive index of the second lens is Nd2, and the refractive index of the fourth lens is Nd4, The refractive index of the fifth lens is Nd5; the dispersion coefficients of the fourth lens and the fifth lens are Vd4 and Vd5; the distance between the image side of the second lens and the object side of the third lens on the optical axis is AT23; the third lens The distance from the image side to the object side of the fourth lens on the optical axis is AT34; the distance from the object side of the second lens to the image side of the fifth lens on the optical axis is TT25; the combination of the second lens and the third lens The focal length is f23, and the effective focal length of this optical camera lens group is EFL. This optical camera lens group meets the following conditions:

Nd2≧1.68, Nd4≧1.68, Nd5≧1.68;

Vd4+Vd5<100;

0.04＜(AT23+AT34)/TT25＜0.16 and

1.75<f23/EFL<3.3.

According to an embodiment of the present creation, the optical imaging lens group satisfies the following conditions: 0.7<f23/f45<1.3; where f45 is the combined focal length of the fourth lens and the fifth lens.

According to an embodiment of the present creation, the optical camera lens group satisfies the following conditions:

Nd4<Nd5;

Vd4>Vd5; and

5<TTL/ImgH<7; where TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens group on the optical axis, and ImgH is the maximum image height of the optical imaging lens group on the imaging surface.

The present invention further provides an optical imaging lens group, which includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in order from the object side to the image side. Among them, the first lens has negative refractive power and its image side is concave; the second lens has positive refractive power and its object side is convex; the third lens has positive refractive power and its object side is concave and the image side is convex; The combined focal length of the first lens to the third lens is positive; the fourth lens has positive refractive power, and its object side and image side are convex; the fifth lens has negative refractive power, its object side is concave, and the image side is convex; The four lenses and the fifth lens are cemented lenses, and the fourth lens and the fifth lens include at least one lens with high dispersion coefficient and one lens with low dispersion coefficient; the total number of lenses of this optical imaging lens group is five; the refraction of the second lens The rate is Nd2, the refractive index of the fourth lens is Nd4, the refractive index of the fifth lens is Nd5; the dispersion coefficients of the fourth lens and the fifth lens are Vd4 and Vd5, respectively; the radius of curvature of the object side and the image side of the first lens R1 and R2 respectively; the combined focal length of the first lens, the second lens and the third lens is f123, the effective focal length of this optical imaging lens group is EFL; this optical imaging lens group meets the following conditions:

Nd2≧1.68, Nd4≧1.68, Nd5≧1.68;

Vd4+Vd5<100;

-0.01＜R2/R1＜0.03; and

4<f123/EFL<20.

According to an embodiment of the present invention, the optical imaging lens group satisfies the following condition: 0.04<(AT23+AT34)/TT25<0.16; where AT23 is the image side of the second lens to the object side of the third lens on the optical axis Distance, AT34 is the distance from the third lens image side to the fourth lens object side on the optical axis, and TT25 is the distance from the second lens object side to the fifth lens item side on the optical axis.

According to an embodiment of the present creation, the optical imaging lens group satisfies the following conditions: 1.75<f23/EFL<3.3; where f23 is the combined focal length of the second lens and the three lenses.

According to an embodiment of the present creation, the optical imaging lens group satisfies the following conditions: -1<R8/EFL<-0.6; where R8 is the radius of curvature of the image side of the fourth lens.

According to an embodiment of the present creation, the optical imaging lens group satisfies the following condition: 0.4<AT23/(|Sag4|+|Sag5|)<3.5; where Sag4 is the intersection point of the image side of the second lens and the optical axis to For the horizontal distance of the position of the maximum effective radius of the image side, Sag5 is the horizontal distance from the intersection of the object side of the third lens and the optical axis to the position of the maximum effective radius of the object side.

According to an embodiment of the present creation, the third lens satisfies the following conditions:

5<f3/EFL<12; and

0.6<CT3/EFL<1.2; where f3 is the focal length of the third lens and CT3 is the thickness of the third lens.

According to an embodiment of the present creation, the third lens further satisfies the following conditions:

Nd3<1.6; where, Nd3 is the refractive index of the third lens.

According to an embodiment of the present creation, the optical camera lens group satisfies the following conditions:

-1.6<f1/EFL<-1; where f1 is the focal length of the first lens.

According to an embodiment of the present creation, the image side of the second lens is convex.

According to an embodiment of the present invention, the second lens satisfies the following conditions: 0.15< (C3+C4)/(C3-C4)<1.2; where C3 is the curvature of the object side of the second lens, and C4 is the second transparent The curvature of the mirror side.

According to an embodiment of the present invention, the third lens satisfies the following conditions: -105< (C5+C6)/(C5-C6)<-5; where C5 is the curvature of the side surface of the third lens and C6 is the The curvature of the three lens image side.

According to an embodiment of the present creation, the third lens further satisfies the following condition: -12< (C5+C6)/(C5-C6)<-5.

According to an embodiment of the present creation, the optical imaging lens group further satisfies the following condition: 5<f3/EFL<8.

According to an embodiment of the present creation, the optical camera lens group satisfies the following conditions:

0.4<(AT12+AT23)/EFL<1.7; where, AT12 is the distance from the first lens image side to the second lens object side on the optical axis, and AT23 is the second lens image side to the third lens object side on the optical axis The distance.

The present invention further provides an imaging device. The imaging device includes the aforementioned optical camera lens group and an image sensing element.

This creation further provides an electronic device, which includes the imaging device as described above.

The present invention provides an optical imaging lens group, which includes a first lens, a second lens, a third lens, an aperture, a fourth lens, and a fifth lens in order from the object side to the image side. The first lens to the third lens form a front lens group with positive refractive power, wherein the first lens has negative refractive power and its image side is concave; the second lens has positive refractive power and its object side is convex; the third lens has With positive refracting force, the object side is concave and the image side is convex. The fourth lens and the fifth lens form a lens group with positive refractive power, and the image side of the fourth lens is bonded to the object side of the fifth lens to form a cemented lens; wherein, the fourth lens has positive refractive power, which Both the object side and the image side are convex; the fifth lens has negative refractive power, the object side is concave, and the image side is convex. The total number of lenses in this optical camera lens group is five.

In the following embodiments, the lenses of the optical imaging lens group may be made of glass or plastic, and are not limited to the materials listed in the embodiments. In the embodiment of the present invention, each lens includes an object side facing the subject, and an image side facing the imaging plane.

The first lens has a negative refractive power, and its image side is concave, which is used to improve the light receiving range, so that the entire optical imaging lens group can have a larger angle of view. The second lens and the third lens have a positive refractive power, as an element to adjust the optical path, so that the divergent beam formed by the incident light after passing through the first lens is refracted by the second lens and the third lens to form a closer Beam of the optical axis.

The fourth lens and the fifth lens of the rear mirror group are cemented lenses, including a high dispersion coefficient lens and a low dispersion coefficient lens, for eliminating chromatic aberration. In the context of this specification, a high dispersion coefficient lens refers to a lens with a dispersion coefficient greater than or equal to 50, and a low dispersion coefficient lens refers to a lens with a dispersion coefficient less than 50. The dispersion coefficient of the fourth lens is Vd4, and the dispersion coefficient of the fifth lens is Vd5, which satisfies the following relationship:

Vd4+Vd5＜100 (1);

The optical imaging lens group has at least three lenses with higher refractive index, which is beneficial to reduce the aberration of the optical imaging lens group. Among them, the refractive index of the second lens is Nd2, the refractive index of the fourth lens is Nd4 and the refractive index of the fifth lens is Nd5, which satisfies the following relationship:

Nd2≧1.68, Nd4≧1.68, and Nd5≧1.68 (2);

The distance from the image side of the second lens to the object side of the third lens on the optical axis is AT23, the distance from the image side of the third lens to the object side of the fourth lens on the optical axis is AT34, and the object side of the second lens to the fifth transparent The distance of the mirror side on the optical axis is TT25, which satisfies the following relationship:

0.04＜(AT23+AT34)/TT25＜0.16 (3);

By satisfying the condition of relation (3), it is beneficial to correct the spherical aberration, field curvature aberration and coma of the optical imaging lens group.

The combined focal length of the second lens and the third lens is f23, and the effective focal length of the optical imaging lens group is EFL, which satisfies the following relationship:

1.75＜ f23/EFL＜ 3.3 (4);

By satisfying the condition of relation (4), it is conducive to reducing the volume of the optical imaging lens group while maintaining good optical performance. If f23/EFL exceeds the upper or lower limit of equation (4), the aberration is more difficult to correct.

The thickness of the third lens is CT3, and the focal length is f3, which satisfies the following relationship between the effective focal length of the optical imaging lens group:

0.6＜CT3/EFL＜1.2 (5); and

5 ＜ f3/EFL ＜ 12 (6);

By satisfying relation (5), the third lens is a thick meniscus lens, and satisfying relation (6), the third lens has a longer focal length, which helps to correct the field curvature aberration of the optical imaging lens group.

Further, the third lens satisfies the following relationship: 5<f3/EFL<8 (7).

Further, the refractive index of the third lens is Nd3, which satisfies the following relationship:

Nd3＜1.6 (8);

By satisfying the relationship (8), it is beneficial to select an appropriate third lens material, and further achieve the purpose of reducing the field curvature aberration of the optical imaging lens group.

The radius of curvature of the cemented surface of the fourth lens and the fifth lens is R8, and the effective focal length EFL of the optical imaging lens group satisfies the following relationship:

-1＜R8/EFL＜-0.6 (9);

By satisfying relation (9), it is beneficial to correct the chromatic aberration of the optical imaging lens group. When R8/EFL is lower than the lower limit of relation (9), the field curvature aberration of the optical imaging lens group will become larger; when R8/EFL is higher than the upper limit of relation (9), the optical imaging lens The chromatic aberration of the group is insufficiently corrected.

The combined focal length of the fourth lens and the fifth lens is f45, and the combined focal length of the second lens and the third lens is f23, satisfying the following relationship:

0.7<f23/f45<1.3(10).

The optical camera lens group further satisfies the following relationship:

Nd4 <Nd5 (11);

Vd4>Vd5 (12); and

5＜TTL/ImgH＜7 (13);

By satisfying the conditions of relational expressions (11) to (13), it is advantageous to produce an optical imaging lens group that uses visible light as the main light source, which can effectively correct chromatic aberration and maintain the miniaturization of the lens group.

The focal length of the first lens is f1, which satisfies the following relationship between the effective focal length EFL of the optical imaging lens group:

-1.6＜f1/EFL＜-1 (14).

The horizontal distance between the intersection of the image side of the second lens and the optical axis to the position of the maximum effective radius of the image side is Sag4, and the horizontal distance of the intersection of the object side of the third lens and the optical axis to the position of the maximum effective radius of the object side is Sag5, and the distance between the image side of the second lens and the object side of the third lens on the optical axis is AT23, which satisfies the following relationship:

0.4＜AT23/(|Sag4|+|Sag5|)＜3.5 (15);

The curvature of the object side of the second lens is C3, and the curvature of the image side is C4, which satisfies the following relationship:

0.15＜ (C3+C4)/(C3-C4)＜1.2 (16).

The curvature of the object side of the third lens is C5, and the curvature of the image side is C6, which satisfies the following relationship:

-105＜(C5+C6)/(C5-C6)＜-5 (17);

Further, the third lens satisfies the following relationship: -12< (C5+C6)/(C5-C6)<-5 (18).

Further, the image side of the second lens is convex.

The distance from the image side of the first lens to the object side of the second lens on the optical axis is AT12, and the distance from the image side of the second lens to the object side of the third lens on the optical axis is AT23, which is Between the effective focal length EFL, the following relationship is satisfied:

0.4＜(AT12+AT23)/EFL＜1.7 (19);

In addition, the radius of curvature of the object side surface of the first lens of the optical imaging lens group is R1, and the radius of curvature of the image side surface is R2, which satisfies the following relationship:

-0.01＜R2/R1＜0.03 (20);

By satisfying the relationship (20), it is beneficial to receive incident light at a large angle and improve the angle of view of the optical camera lens group.

The combined focal length of the first lens, the second lens, and the third lens is f123, and the effective focal length EFL of the optical imaging lens group satisfies the following relationship:

4＜f123/EFL＜20 (21);

By further satisfying the relationship (21), it is helpful to form a lens group with a long focal length (that is, weak refractive power), which can reduce the angle of incident light on the surface of the fourth lens and reduce aberration.

Referring to FIG. 11, the figure shows a schematic diagram of the sagging value (Sag) on the lens surface of the creative embodiment. FIG. 11 takes the concave value of the object side of a lens as an example. As shown in the figure, the intersection of the lens object side and the optical axis I is point A, and the maximum effective radius position on the object side is point B, then the horizontal distance between point A and point B is defined as the lens object side Sag value. First embodiment

Referring to FIG. 1A and FIG. 1B, FIG. 1A is a schematic diagram of creating an optical imaging lens group according to the first embodiment. FIG. 1B creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the first embodiment in this order from left to right.

As shown in FIG. 1A, the optical imaging lens group 100 of the first embodiment includes a first lens 110 with negative refractive power, a second lens 120 with positive refractive power, a third lens 130 with positive refractive power, an aperture ST, A fourth lens 140 with positive refractive power and a fifth lens 150 with negative refractive power. Among them, the first lens 110, the second lens 120, and the third lens 130 constitute a front lens group with positive refractive power (not otherwise labeled), and the fourth lens 140 and fifth lens 150 constitute a rear lens group with positive refractive power (not otherwise Label). The optical imaging lens group 100 of the first embodiment may further include a filter element 160 and an imaging surface 170. Among them, the filter element 160 is disposed between the fifth lens 150 and the imaging surface 170. On the imaging surface 170, an image sensing element 101 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 110 has a negative refractive power, its object side 111 is convex, the image side 112 is concave, and both the object side 111 and the image side 112 are spherical. The first lens 11 is made of glass.

The second lens 120 has a positive refractive power, its object side 121 is convex, the image side 122 is convex, and both the object side 121 and the image side 122 are spherical. The second lens 120 is made of glass.

The third lens 130 has a positive refractive power, its object side 131 is concave, the image side 132 is convex, and both the object side 131 and the image side 132 are spherical. The third lens 130 is made of glass.

The fourth lens 140 has a positive refractive power, its object side 141 is convex, the image side 142 is convex, and both the object side 141 and the image side 142 are spherical. The fourth lens 140 is made of glass.

The fifth lens 150 has a negative refractive power, the object side surface 151 is a concave surface, the image side surface 152 is a convex surface, and the object side surface 151 and the image side surface 152 are both spherical surfaces. The fifth lens 150 is made of glass. The image side 142 of the fourth lens 140 and the object side 151 of the fifth lens 150 are cemented with each other to form a cemented lens.

The filter element 160 is disposed between the fifth lens 150 and the imaging surface 170. Both surfaces 161 and 162 are flat surfaces, and the material is glass.

The image sensing element 101 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

Please refer to Table 1 below, which is the detailed optical data of the optical imaging lens group 100 of the first embodiment. Among them, the object side 111 of the first lens 110 is marked as the surface 111, the image side 112 is marked as the surface 112, and the other lens surfaces are deduced by analogy. The value in the distance field in the table represents the distance from the surface to the next surface on the optical axis I. For example, the distance from the object side 111 to the image side 112 of the first lens 110 is 0.5 mm, which means that the thickness of the first lens 110 is 0.5 mm. The distance from the image side 112 of the first lens 110 to the object side 121 of the second lens 120 is 0.932 mm. Others can be deduced by analogy. In the first embodiment, the effective focal length of the optical imaging lens group 100 is EFL, the aperture value (F-number) is Fno, and one-half of the maximum angle of view of the overall optical imaging lens group 100 is HFOV (Half Field of View). In Table 1. First embodiment EFL = 2.45 mm, Fno = 2.03, HFOV = 60 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 111 120.000 0.500 1.758 52.3 -2.62 glass 112 1.952 0.932 Second lens 121 5.818 1.932 1.839 37.3 4.98 glass 122 -12.597 0.300 Third lens 131 -4.088 2.054 1.534 48.8 12.58 glass 132 -2.987 0.061 aperture ST 0.000 Fourth lens 141 5.781 1.939 1.700 56.2 2.42 glass 142 (glued surface) -2.060 0.000 Fifth lens 151 (glued surface) -2.060 0.540 1.855 23.8 -4.01 glass 152 -5.789 0.204 Filter element 161 flat 0.950 1.519 64.2 glass 162 flat 2.966 Imaging plane 170 flat Reference wavelength: 546 nm Table I

In the first embodiment, the dispersion coefficient of the fourth lens 140 is Vd4, and the dispersion coefficient of the fifth lens 150 is Vd5, and the relationship is Vd4+Vd5=80.

In the first embodiment, the refractive index of the second lens 120 is Nd2, the refractive index of the fourth lens 140 is Nd4, and the refractive index of the fifth lens 150 is Nd5. The relationship is Nd2=1.839, Nd4=1.700, Nd5= 1.855.

In the first embodiment, the distance from the image side 122 of the second lens 120 to the object side 131 of the third lens 130 on the optical axis is AT23, and the image side 132 of the third lens 130 to the object side 141 of the fourth lens 140 on the optical axis The distance is AT34, and the distance between the object side 121 of the second lens 120 and the image side 152 of the fifth lens 150 on the optical axis is TT25, and the relationship is (AT23+AT34)/TT25=0.05.

In the first embodiment, the combined focal length of the second lens 120 and the third lens 130 is f23, and its relationship with the effective focal length EFL of the overall optical imaging lens group 100 is f23/EFL=1.90.

In the first embodiment, the thickness of the third lens 130 is CT3 and the focal length is f3, and the relationship between the effective focal length EFL of the overall optical imaging lens group 100 is CT3/EFL=0.84 and f3/EFL=5.13.

In the first embodiment, the refractive index of the third lens 130 is Nd3, and the relationship is Nd3=1.534.

In the first embodiment, the radius of curvature of the cemented surfaces (surface 142 and surface 151) of the fourth lens 140 and the fifth lens 150 is R8, and the relationship between the effective focal length EFL of the optical imaging lens group 100 is R8 /EFL= -0.84.

In the first embodiment, the combined focal length of the second lens 120 and the third lens 130 is f23, the combined focal length of the fourth lens 140 and the fifth lens 150 is f45, and the relationship is f23/f45=0.84.

In the first embodiment, the distance (total track length) from the object side 111 of the first lens 110 to the imaging plane 170 on the optical axis I is the total length TTL. On the imaging plane 170, the image sensing element 101 effectively senses the diagonal of the area One half of the line is the maximum image height ImgH (Image Height), and its relationship is TTL/ImgH=5.63.

In the first embodiment, the focal length of the first lens 110 is f1, and its relationship with the effective focal length EFL of the optical imaging lens group 100 is f1/EFL= -1.07.

In the first embodiment, the horizontal distance between the intersection of the image side 122 of the second lens 120 and the optical axis I to the position of the maximum effective radius on the image side 122 is Sag4, and the object side 131 of the third lens 130 and the optical axis I The horizontal distance from the intersection to the position of the maximum effective radius of its object side 131 is Sag5, and its relationship with the distance AT23 of the second lens 120 image side 122 to the third lens 130 object side 131 on the optical axis is AT23/(|Sag4| +|Sag5|)=0.70.

In the first embodiment, the curvature of the object side 121 of the second lens 120 is C3, and the curvature of the image side 122 is C4. The relationship is (C3+C4)/(C3-C4)=0.37.

In the first embodiment, the curvature of the object side 131 of the third lens 130 is C5, and the curvature of the image side 132 is C6, and the relationship is (C5+C6)/(C5-C6)= -6.42.

In the first embodiment, the distance AT12 on the optical axis from the image side 112 of the first lens 110 to the object side 121 of the second lens 120 and the image side 122 of the second lens 120 to the object side 131 of the third lens 130 The relationship between the sum of the distances AT23 and the overall optical imaging lens group 100 is (AT12+AT23)/EFL=0.50.

In the first embodiment, the radius of curvature of the object side 111 of the first lens 110 is R1, and the radius of curvature of the image side 112 is R2, and the relationship is R2/R1=0.02.

In the first embodiment, the combined focal length of the first lens 110, the second lens 120, and the third lens 130 is f123, and its relationship with the effective focal length EFL of the optical imaging lens group 100 is f123/EFL=6.58.

It can be known from the numerical values of the above relational expressions that the optical imaging lens group 100 of the first embodiment satisfies the requirements of relational expressions (1) to (21).

Referring to FIG. 1B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 100, respectively. It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three visible wavelengths of 436nm, 546nm, and 656nm at different heights can be concentrated near the imaging point, and the imaging point deviation can be controlled within + 0.05mm. It can be seen from the astigmatism aberration diagram (wavelength 546nm) that the sagittal aberration aberration varies within the entire field of view within + 0.05mm; the meridional astigmatism aberration across the entire field of view The focal length variation within is within + 0.02mm; and the distortion aberration can be controlled within 15%. As shown in FIG. 1B, the optical imaging lens group 100 of this embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Second embodiment

Referring to FIGS. 2A and 2B, FIG. 2A is a schematic diagram of creating an optical imaging lens group according to a second embodiment. FIG. 2B creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the second embodiment in this order from left to right.

As shown in FIG. 2A, the optical imaging lens group 200 of the second embodiment includes a first lens 210 with negative refractive power, a second lens 220 with positive refractive power, a third lens 230 with positive refractive power, an aperture ST, A fourth lens 240 with positive refractive power and a fifth lens 250 with negative refractive power. Among them, the first lens 210, the second lens 220, and the third lens 230 constitute a front lens group (not otherwise labeled) with positive refractive power, and the fourth lens 240 and fifth lens 250 constitute a rear lens group (not otherwise designated) with positive refractive power Label). The optical imaging lens group 200 of the second embodiment may further include a filter element 260 and an imaging surface 270. Among them, the filter element 260 is disposed between the fifth lens 250 and the imaging surface 270. On the imaging surface 270, an image sensing element 201 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 210 has a negative refractive power, its object side 211 is convex, the image side 212 is concave, and both the object side 211 and the image side 212 are spherical. The first lens 210 is made of glass material.

The second lens 220 has a positive refractive power, its object side 221 is convex, the image side 222 is convex, and both the object side 221 and the image side 222 are spherical. The second lens 220 is made of glass.

The third lens 230 has a positive refractive power, its object side 231 is concave, the image side 232 is convex, and both the object side 231 and the image side 232 are spherical. The third lens 230 is made of glass.

The fourth lens 240 has a positive refractive power, its object side 241 is convex, the image side 242 is convex, and both the object side 241 and the image side 242 are spherical. The fourth lens 240 is made of glass material.

The fifth lens 250 has a negative refractive power, the object side surface 251 is a concave surface, the image side surface 252 is a convex surface, and both the object side surface 251 and the image side surface 252 are spherical surfaces. The fifth lens 250 is made of glass. The image side 242 of the fourth lens 240 and the object side 251 of the fifth lens are cemented with each other to form a cemented lens.

The filter element 260 is disposed between the fifth lens 250 and the imaging surface 270, the two surfaces 261 and 262 are both flat, and the material is glass.

The image sensing element 201 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

Detailed optical data of the optical imaging lens group 200 of the second embodiment is listed in Table 2. Second embodiment EFL = 2.4 mm, Fno = 2.02, HFOV = 60 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 211 110.000 0.500 1.776 49.6 -3.10 glass 212 2.358 1.714 Second lens 221 5.877 1.900 1.811 40.7 6.47 glass 222 -41.863 0.800 Third lens 231 -4.839 2.100 1.597 35.4 18.30 glass 232 -3.897 0.110 aperture ST 0.000 Fourth lens 241 4.843 2.200 1.716 53.9 2.38 glass 242 (glued surface) -2.131 0.000 Fifth lens 251 (glued surface) -2.131 0.400 1.855 23.8 -3.59 glass 252 -7.598 0.204 Filter element 261 flat 0.950 1.519 64.2 glass 262 flat 2.987 Imaging plane 270 flat Reference wavelength: 546 nm Table II

In the second embodiment, the numerical values of the relational expressions of the optical imaging lens group 200 are listed in Table 3. It can be seen from Table 3 that the optical imaging lens group 200 of the second embodiment satisfies the requirements of relational expressions (1) to (21). Vd4 53.9 Vd5 23.8 Nd2 1.811 Nd4 1.716 Nd5 1.855 Sag4 (mm) -0.04 Sag5 (mm) -0.29 f23 (mm) 6.12 f45 (mm) 5.44 f123 (mm) 29.59 TTL (mm) 13.87 ImgH (mm) 2.12 Vd4+Vd5 77.7 (AT23+AT34)/TT25 0.12 f23/EFL 2.55 f3/EFL 7.62 CT3/EFL 0.88 Nd3 1.60 R8/EFL -0.89 f23/f45 1.13 TTL/ImgH 6.55 f1/EFL -1.30 AT23/(|Sag4|+|Sag5|) 2.40 (C3+C4)/(C3-C4) 0.75 (C5+C6)/(C5-C6) -9.27 (AT12+AT23)/EFL 1.05 R2/R1 0.02 f123/EFL 12.33 Table 3

Referring to FIG. 2B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 200, respectively. It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three visible wavelengths of 436nm, 546nm, and 656nm at different heights can be concentrated near the imaging point, and the imaging point deviation can be controlled within + 0.05mm. As can be seen from the astigmatic aberration diagram (wavelength 546nm), the sagittal aberration aberration varies within the entire field of view within + 0.04mm; the meridional astigmatism aberration across the entire field of view The focal length variation within is within + 0.02mm; and the distortion aberration can be controlled within 16%. As shown in FIG. 2B, the optical imaging lens group 200 of this embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Third embodiment

Referring to FIGS. 3A and 3B, FIG. 3A is a schematic diagram of creating an optical imaging lens group according to a third embodiment. FIG. 3B creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the third embodiment in this order from left to right.

As shown in FIG. 3A, the optical imaging lens group 300 of the third embodiment includes a first lens 310 with negative refractive power, a second lens 320 with positive refractive power, a third lens 330 with positive refractive power, an aperture ST, A fourth lens 340 with positive refractive power and a fifth lens 350 with negative refractive power. Among them, the first lens 310, the second lens 320, and the third lens 330 constitute a front lens group with positive refractive power (not otherwise labeled), and the fourth lens 340 and fifth lens 350 constitute a rear lens group with positive refractive power (not otherwise Label). The optical imaging lens group 300 of the third embodiment may further include a filter element 360 and an imaging surface 370. Among them, the filter element 360 is disposed between the fifth lens 350 and the imaging surface 370. On the imaging surface 370, an image sensing element 301 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 310 has a negative refractive power, the object side surface 311 is a convex surface, the image side surface 312 is a concave surface, and both the object side surface 311 and the image side surface 312 are spherical surfaces. The first lens 310 is made of glass material.

The second lens 320 has a positive refractive power, its object side 321 is convex, the image side 322 is convex, and both the object side 321 and the image side 322 are spherical. The second lens 320 is made of glass.

The third lens 330 has a positive refractive power, its object side 331 is concave, the image side 332 is convex, and both the object side 331 and the image side 332 are spherical. The third lens 330 is made of glass material.

The fourth lens 340 has a positive refractive power, its object side 341 is convex, the image side 342 is convex, and both the object side 341 and the image side 342 are spherical. The fourth lens 340 is made of glass material.

The fifth lens 350 has a negative refractive power, the object side surface 351 is a concave surface, the image side surface 352 is a convex surface, and the object side surface 351 and the image side surface 352 are both spherical surfaces. The fifth lens 350 is made of glass material. The image side 342 of the fourth lens 340 and the object side 351 of the fifth lens are cemented with each other to form a cemented lens.

The filter element 360 is disposed between the fifth lens 350 and the imaging surface 370. Both surfaces 361 and 362 are flat surfaces, and the material is glass.

The image sensor 301 is, for example, a charge-coupled device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

The detailed optical data of the optical imaging lens group 300 of the third embodiment is listed in Table 4. Third embodiment EFL = 2.45 mm, Fno = 2.03, HFOV = 60 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 311 123.750 0.500 1.776 49.6 -2.58 glass 312 1.967 1.220 Second lens 321 5.465 1.693 1.812 33.3 5.09 glass 322 -14.618 0.359 Third lens 331 -4.321 1.933 1.534 48.8 13.13 glass 332 -3.090 0.121 aperture ST 0.000 Fourth lens 341 5.878 1.886 1.700 55.5 2.39 glass 342 (glued surface) -2.032 0.000 Fifth lens 351 (glued surface) -2.032 0.500 1.855 23.8 -3.82 glass 352 -6.000 0.204 Filter element 361 flat 0.950 1.519 64.2 glass 362 flat 3.114 Imaging plane 370 flat Reference wavelength: 546 nm Table 4

In the third embodiment, the numerical values of the relational expressions of the optical imaging lens group 300 are listed in Table 5. It can be seen from Table 5 that the optical imaging lens group 300 of the third embodiment satisfies the requirements of relational expressions (1) to (21). Vd4 55.5 Vd5 23.8 Nd2 1.812 Nd4 1.700 Nd5 1.855 Sag4 (mm) -0.10 Sag5 (mm) -0.32 f23 (mm) 4.68 f45 (mm) 5.73 f123 (mm) 15.44 TTL (mm) 12.48 ImgH (mm) 2.21 Vd4+Vd5 79.3 (AT23+AT34)/TT25 0.07 f23/EFL 1.90 f3/EFL 5.35 CT3/EFL 0.79 Nd3 1.53 R8/EFL -0.83 f23/f45 0.82 TTL/ImgH 5.66 f1/EFL -1.05 AT23/(|Sag4|+|Sag5|) 0.85 (C3+C4)/(C3-C4) 0.46 (C5+C6)/(C5-C6) -6.02 (AT12+AT23)/EFL 0.64 R2/R1 0.02 f123/EFL 6.29 Table 5

Referring to FIG. 3B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 300, respectively. It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three visible wavelengths of 436nm, 546nm, and 656nm at different heights can be concentrated near the imaging point, and the deviation of the imaging point can be controlled within +0.06mm. It can be seen from the astigmatic aberration diagram (wavelength 546nm) that the sagittal aberration aberration varies within +0.04mm of the focal length in the entire field of view; the meridional astigmatism aberration in the entire field of view The focal length variation within is within +0.02mm; and the distortion aberration can be controlled within 15%. As shown in FIG. 3B, the optical imaging lens group 300 of this embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Fourth embodiment

Referring to FIGS. 4A and 4B, FIG. 4A is a schematic diagram of creating an optical imaging lens group according to a fourth embodiment. FIG. 4B creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the fourth embodiment in this order from left to right.

As shown in FIG. 4A, the optical imaging lens group 400 of the fourth embodiment includes a first lens 410 having negative refractive power, a second lens 420 having positive refractive power, a third lens 430 having positive refractive power, an aperture ST, A fourth lens 440 with positive refractive power and a fifth lens 450 with negative refractive power. Among them, the first lens 410, the second lens 420, and the third lens 430 constitute the front lens group (not otherwise labeled) with positive refractive power, and the fourth lens 440 and the fifth lens 450 constitute the rear lens group (not otherwise designated) with positive refractive power Label). The optical imaging lens group 400 of the fourth embodiment may further include a filter element 460 and an imaging surface 470. The filter element 460 is disposed between the fifth lens 450 and the imaging surface 470. On the imaging surface 470, an image sensing element 401 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 410 has a negative refractive power, its object side 411 is convex, the image side 412 is concave, and both the object side 411 and the image side 412 are spherical. The first lens 410 is made of glass material.

The second lens 420 has a positive refractive power, its object side 421 is convex, the image side 422 is convex, and both the object side 421 and the image side 422 are spherical. The second lens 420 is made of glass.

The third lens 430 has a positive refractive power, its object side 431 is concave, the image side 432 is convex, and both the object side 431 and the image side 432 are spherical. The third lens 430 is made of plastic material.

The fourth lens 440 has a positive refractive power, its object side 441 is convex, the image side 442 is convex, and both the object side 441 and the image side 442 are spherical. The fourth lens 440 is made of glass material.

The fifth lens 450 has a negative refractive power, its object side 451 is concave, the image side 452 is convex, and both the object side 451 and the image side 452 are spherical. The fifth lens 450 is made of glass. The image side 442 of the fourth lens 440 and the object side 451 of the fifth lens are cemented with each other to form a cemented lens.

The filter element 460 is disposed between the fifth lens 450 and the imaging surface 470. Both surfaces 461 and 462 are flat surfaces, and the material is glass.

The image sensing element 401 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

The detailed optical data of the optical imaging lens group 400 of the fourth embodiment is listed in Table 6. Fourth embodiment EFL = 2.46 mm, Fno = 2.03, HFOV = 60 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 411 123.750 0.500 1.776 49.6 -2.58 glass 412 1.967 1.220 Second lens 421 5.465 1.693 1.812 33.3 5.09 glass 422 -14.618 0.359 Third lens 431 -4.321 1.933 1.534 55.8 13.14 plastic 432 -3.090 0.121 aperture ST 0.000 Fourth lens 441 5.878 1.886 1.700 55.5 2.39 glass 442 (glued surface) -2.032 0.000 Fifth lens 451 (glued surface) -2.032 0.500 1.855 23.8 -3.82 glass 452 -6.000 0.204 Filter element 461 flat 0.950 1.519 64.2 glass 462 flat 3.112 Imaging plane 470 flat Reference wavelength: 546 nm Table 6

In the fourth embodiment, the numerical values of the relational expressions of the optical imaging lens group 400 are listed in Table 7. It can be seen from Table 7 that the optical imaging lens group 400 of the fourth embodiment satisfies the requirements of relational expressions (1) to (21). Vd4 55.5 Vd5 23.8 Nd2 1.812 Nd4 1.700 Nd5 1.855 Sag4 (mm) -0.10 Sag5 (mm) -0.32 f23 (mm) 4.68 f45 (mm) 5.73 f123 (mm) 15.47 TTL (mm) 12.48 ImgH (mm) 2.20 Vd4+Vd5 79.3 (AT23+AT34)/TT25 0.07 f23/EFL 1.90 f3/EFL 5.35 CT3/EFL 0.79 Nd3 1.53 R8/EFL -0.83 f23/f45 0.82 TTL/ImgH 5.66 f1/EFL -1.05 AT23/(|Sag4|+|Sag5|) 0.85 (C3+C4)/(C3-C4) 0.46 (C5+C6)/(C5-C6) -6.02 (AT12+AT23)/EFL 0.64 R2/R1 0.02 f123/EFL 6.30 Table 7

Referring to FIG. 4B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 400, respectively. It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three visible wavelengths of 436nm, 546nm, and 656nm at different heights can be concentrated near the imaging point, and the imaging point deviation can be controlled within + 0.06mm. It can be seen from the astigmatism aberration diagram (wavelength 546nm) that the sagittal aberration aberration varies within the entire field of view within + 0.05mm; the meridional astigmatism aberration across the entire field of view The focal length variation within is within + 0.02mm; and the distortion aberration can be controlled within 15%. As shown in FIG. 4B, the optical imaging lens group 400 of this embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Fifth embodiment

Referring to FIGS. 5A and 5B, FIG. 5A is a schematic diagram of creating an optical imaging lens assembly of a fifth embodiment. FIG. 5B creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the fifth embodiment in this order from left to right.

As shown in FIG. 5A, the optical imaging lens group 500 of the fifth embodiment includes a first lens 510 having negative refractive power, a second lens 520 having positive refractive power, a third lens 530 having positive refractive power, an aperture ST, A fourth lens 540 with positive refractive power and a fifth lens 550 with negative refractive power. Among them, the first lens 510, the second lens 520, and the third lens 530 constitute the front lens group (not otherwise labeled) with positive refractive power, and the fourth lens 540 and the fifth lens 550 constitute the rear lens group (not otherwise designated) with positive refractive power Label). The optical imaging lens group 500 of the fifth embodiment may further include a filter element 560 and an imaging surface 570. Among them, the filter element 560 is disposed between the fifth lens 550 and the imaging surface 570. On the imaging surface 570, an image sensing element 501 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 510 has a negative refractive power, its object side 511 is convex, the image side 512 is concave, and both the object side 511 and the image side 512 are spherical. The first lens 510 is made of glass.

The second lens 520 has a positive refractive power, its object side 521 is convex, the image side 522 is convex, and both the object side 521 and the image side 522 are spherical. The second lens 520 is made of glass.

The third lens 530 has a positive refractive power, its object side 531 is concave, the image side 532 is convex, and both the object side 531 and the image side 532 are spherical. The third lens 530 is made of glass.

The fourth lens 540 has a positive refractive power, its object side 541 is convex, the image side 542 is convex, and both the object side 541 and the image side 542 are spherical. The fourth lens 540 is made of glass.

The fifth lens 550 has a negative refractive power, the object side surface 551 is a concave surface, the image side surface 552 is a convex surface, and the object side surface 551 and the image side surface 552 are both spherical surfaces. The fifth lens 550 is made of glass material. The image side 542 of the fourth lens 540 and the object side 551 of the fifth lens are cemented with each other to form a cemented lens.

The filter element 560 is disposed between the fifth lens 550 and the imaging surface 570, the two surfaces 561 and 562 are both flat, and the material is glass.

The image sensor 501 is, for example, a charge-coupled device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

Detailed optical data of the optical imaging lens group 500 of the fifth embodiment are listed in Table 8. Fifth embodiment EFL = 2.19 mm, Fno = 2.02, HFOV = 60 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 511 80.000 0.500 1.678 30.1 -3.02 glass 512 1.992 1.200 Second lens 521 6.201 2.105 1.816 23.8 5.67 glass 522 -15.412 0.263 Third lens 531 -4.138 2.300 1.581 39.2 13.83 glass 532 -3.290 0.121 aperture ST 0.000 Fourth lens 541 4.481 2.000 1.696 29.5 1.90 glass 542 (glued surface) -1.532 0.000 Fifth lens 551 (glued surface) -1.532 0.500 1.740 52.3 -2.60 glass 552 -8.641 0.204 Filter element 561 flat 0.950 1.508 64.2 glass 562 flat 2.323 Imaging plane 570 flat Reference wavelength: 940 nm Table 8

In the fifth embodiment, the numerical values of the relational expressions of the optical imaging lens group 500 are listed in Table 9. It can be seen from Table 9 that the optical imaging lens group 500 of the fifth embodiment satisfies the requirements of relational expressions (1) to (21). Vd4 29.5 Vd5 52.3 Nd2 1.816 Nd4 1.696 Nd5 1.740 Sag4 (mm) -0.08 Sag5 (mm) -0.30 f23 (mm) 5.29 f45 (mm) 5.03 f123 (mm) 15.04 TTL (mm) 12.47 ImgH (mm) 1.96 Vd4+Vd5 81.8 (AT23+AT34)/TT25 0.05 f23/EFL 2.40 f3/EFL 6.29 CT3/EFL 1.05 Nd3 1.58 R8/EFL -0.70 f23/f45 1.05 TTL/ImgH 6.37 f1/EFL -1.37 AT23/(|Sag4|+|Sag5|) 0.69 (C3+C4)/(C3-C4) 0.43 (C5+C6)/(C5-C6) -8.76 (AT12+AT23)/EFL 0.66 R2/R1 0.02 f123/EFL 6.84 Table 9

Referring to FIG. 5B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 500, respectively. It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three near-infrared wavelengths of 900nm, 940nm, and 980nm at different heights can be concentrated near the imaging point, and the imaging point deviation can be controlled within + 0.06mm. It can be seen from the astigmatism aberration diagram (wavelength 940nm) that the sagittal aberration aberration in the entire field of view changes the focal length within + 0.03mm; the meridional astigmatism aberration in the entire field of view The focal length variation within is within + 0.03mm; and the distortion aberration can be controlled within 15%. As shown in FIG. 5B, the optical imaging lens group 500 of this embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Sixth embodiment

6A and 6B, FIG. 6A is a schematic diagram of creating an optical imaging lens group according to a sixth embodiment. FIG. 6B creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the sixth embodiment in this order from left to right.

As shown in FIG. 6A, the optical imaging lens group 600 of the sixth embodiment includes a first lens 610 having a negative refractive power, a second lens 620 having a positive refractive power, a third lens 630 having a positive refractive power, an aperture ST, A fourth lens 640 with positive refractive power and a fifth lens 650 with negative refractive power. Among them, the first lens 610, the second lens 620, and the third lens 630 constitute the front lens group with positive refractive power (not otherwise labeled), and the fourth lens 640 and the fifth lens 650 constitute the rear lens group with positive refractive power (not otherwise Label). The optical imaging lens group 600 of the sixth embodiment may further include a filter element 660 and an imaging surface 670. The filter element 660 is disposed between the fifth lens 650 and the imaging surface 670. On the imaging surface 670, an image sensing element 601 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 610 has a negative refractive power, its object side 611 is convex, the image side 612 is concave, and both the object side 611 and the image side 612 are spherical. The first lens 610 is made of glass.

The second lens 620 has a positive refractive power, its object side 621 is convex, the image side 622 is convex, and both the object side 621 and the image side 622 are spherical. The second lens 620 is made of glass.

The third lens 630 has a positive refractive power, its object side 631 is concave, the image side 632 is convex, and both the object side 631 and the image side 632 are spherical. The third lens 630 is made of glass.

The fourth lens 640 has a positive refractive power, its object side 641 is convex, the image side 642 is convex, and both the object side 641 and the image side 642 are spherical. The fourth lens 640 is made of glass material.

The fifth lens 650 has a negative refractive power, the object side surface 651 is a concave surface, the image side surface 652 is a convex surface, and the object side surface 651 and the image side surface 652 are both spherical surfaces. The fifth lens 650 is made of glass. The image side 642 of the fourth lens 640 and the object side 651 of the fifth lens are cemented with each other to form a cemented lens.

The filter element 660 is disposed between the fifth lens 650 and the imaging surface 670. Both surfaces 661 and 662 are flat surfaces, and the material is glass.

The image sensor 601 is, for example, a charge-coupled device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

The detailed optical data of the optical imaging lens group 600 of the sixth embodiment is listed in Table 10. Sixth embodiment EFL = 2.45 mm, Fno = 2.03, HFOV = 60 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 611 128.991 0.500 1.776 49.6 -2.58 glass 612 1.970 1.285 Second lens 621 5.374 1.384 1.839 37.3 4.61 glass 622 -12.213 0.300 Third lens 631 -4.364 2.115 1.551 45.8 13.53 glass 632 -3.226 0.121 aperture ST 0.000 Fourth lens 641 6.087 1.850 1.700 55.5 2.36 glass 642 (glued surface) -1.987 0.000 Fifth lens 651 (glued surface) -1.987 0.543 1.855 23.8 -3.71 glass 652 -5.986 0.204 Filter element 661 flat 0.950 1.519 64.2 glass 662 flat 2.946 Imaging plane 670 flat Reference wavelength: 546 nm Table ten

In the sixth embodiment, the numerical values of the relational expressions of the optical imaging lens group 600 are listed in Table 11. It can be seen from Table 11 that the optical imaging lens group 600 of the sixth embodiment satisfies the requirements of relational expressions (1) to (21). Vd4 55.5 Vd5 23.8 Nd2 1.839 Nd4 1.700 Nd5 1.855 Sag4 (mm) -0.12 Sag5 (mm) -0.33 f23 (mm) 4.41 f45 (mm) 5.90 f123 (mm) 11.47 TTL (mm) 12.20 ImgH (mm) 2.21 Vd4+Vd5 79.3 (AT23+AT34)/TT25 0.07 f23/EFL 1.80 f3/EFL 5.52 CT3/EFL 0.86 Nd3 1.55 R8/EFL -0.81 f23/f45 0.75 TTL/ImgH 5.52 f1/EFL -1.05 AT23/(|Sag4|+|Sag5|) 0.67 (C3+C4)/(C3-C4) 0.39 (C5+C6)/(C5-C6) -6.67 (AT12+AT23)/EFL 0.65 R2/R1 0.02 f123/EFL 4.68 Table eleven

Referring to FIG. 6B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 600, respectively. It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three visible wavelengths of 436nm, 546nm, and 656nm at different heights can be concentrated near the imaging point, and the imaging point deviation can be controlled within + 0.06mm. It can be seen from the astigmatism aberration diagram (wavelength 546nm) that the sagittal aberration aberration varies within the entire field of view within + 0.05mm; the meridional astigmatism aberration across the entire field of view The focal length variation within is within + 0.04mm; and the distortion aberration can be controlled within 15%. As shown in FIG. 6B, the optical imaging lens group 600 of the present embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Seventh embodiment

Referring to FIGS. 7A and 7B, FIG. 7A is a schematic diagram of creating an optical imaging lens group according to a seventh embodiment. FIG. 7B sequentially creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the seventh embodiment from left to right.

As shown in FIG. 7A, the optical imaging lens group 700 of the seventh embodiment includes a first lens 710 having negative refractive power, a second lens 720 having positive refractive power, a third lens 730 having positive refractive power, an aperture ST, A fourth lens 740 with positive refractive power and a fifth lens 750 with negative refractive power. Among them, the first lens 710, the second lens 720, and the third lens 730 constitute a front lens group (not otherwise labeled) having a positive refractive power, and the fourth lens 740 and the fifth lens 750 constitute a rear lens group having a positive refractive power (not otherwise Label). The optical imaging lens group 700 of the seventh embodiment may further include a filter element 760 and an imaging surface 770. The filter element 760 is disposed between the fifth lens 750 and the imaging surface 770. On the imaging surface 770, an image sensing element 701 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 710 has a negative refractive power, its object side 711 is convex, the image side 712 is concave, and both the object side 711 and the image side 712 are spherical. The first lens 710 is made of glass material.

The second lens 720 has a positive refractive power, its object side 721 is convex, the image side 722 is convex, and both the object side 721 and the image side 722 are spherical. The second lens 720 is made of glass material.

The third lens 730 has a positive refractive power, the object side surface 731 is a concave surface, the image side surface 732 is a convex surface, and the object side surface 731 and the image side surface 732 are both spherical surfaces. The third lens 730 is made of glass material.

The fourth lens 740 has a positive refractive power, its object side 741 is convex, the image side 742 is convex, and both the object side 741 and the image side 742 are spherical. The fourth lens 740 is made of glass material.

The fifth lens 750 has a negative refractive power, its object side 751 is concave, the image side 752 is convex, and both the object side 751 and the image side 752 are spherical. The fifth lens 750 is made of glass material. The image side 742 of the fourth lens 740 and the object side 751 of the fifth lens are cemented with each other to form a cemented lens.

The filter element 760 is disposed between the fifth lens 750 and the imaging surface 770. Both surfaces 761 and 762 are flat, and the material is glass.

The image sensor 701 is, for example, a charge-coupled device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

The detailed optical data of the optical imaging lens set 700 of the seventh embodiment is listed in Table 12. Seventh embodiment EFL = 2.45 mm, Fno = 2.02, HFOV = 60 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 711 123.750 0.500 1.776 49.6 -2.85 glass 712 2.172 1.270 Second lens 721 5.472 1.993 1.839 37.3 6.29 glass 722 -123.839 0.903 Third lens 731 -4.759 1.500 1.534 48.8 14.06 glass 732 -3.234 0.121 aperture ST 0.000 Fourth lens 741 4.953 1.886 1.700 55.5 2.34 glass 742 (glued surface) -2.060 0.500 Fifth lens 751 (glued surface) -2.060 0.204 1.855 23.8 -3.92 glass 752 -5.945 0.950 Filter element 761 flat 3.054 1.519 64.2 glass 762 flat Imaging plane 770 flat Reference wavelength: 546 nm Table 12

In the seventh embodiment, the numerical values of the relational expressions of the optical imaging lens group 700 are listed in Table 13. It can be seen from Table 13 that the optical imaging lens group 700 of the seventh embodiment satisfies the requirements of relational expressions (1) to (21). Vd4 55.5 Vd5 23.8 Nd2 1.839 Nd4 1.700 Nd5 1.855 Sag4 (mm) -0.01 Sag5 (mm) -0.27 f23 (mm) 5.48 f45 (mm) 5.10 f123 (mm) 47.65 TTL (mm) 12.88 ImgH (mm) 2.15 Vd4+Vd5 79.3 (AT23+AT34)/TT25 0.15 f23/EFL 2.24 f3/EFL 5.74 CT3/EFL 0.61 Nd3 1.53 R8/EFL -0.84 f23/f45 1.07 TTL/ImgH 5.98 f1/EFL -1.17 AT23/(|Sag4|+|Sag5|) 3.20 (C3+C4)/(C3-C4) 0.92 (C5+C6)/(C5-C6) -5.24 (AT12+AT23)/EFL 0.89 R2/R1 0.02 f123/EFL 19.46 Table XIII

Referring to FIG. 7B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 700, respectively. It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three visible wavelengths of 436nm, 546nm, and 656nm at different heights can be concentrated near the imaging point, and the imaging point deviation can be controlled within + 0.06mm. It can be seen from the astigmatism aberration diagram (wavelength 546nm) that the sagittal aberration aberration varies within the entire field of view within + 0.05mm; the meridional astigmatism aberration across the entire field of view The focal length variation within is within + 0.03mm; and the distortion aberration can be controlled within 16%. As shown in FIG. 7B, the optical imaging lens group 700 of this embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Eighth embodiment

Referring to FIGS. 8A and 8B, FIG. 8A is a schematic diagram of creating an optical imaging lens group according to an eighth embodiment. FIG. 8B creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the eighth embodiment in order from left to right.

As shown in FIG. 8A, the optical imaging lens group 800 of the eighth embodiment includes a first lens 810 having negative refractive power, a second lens 820 having positive refractive power, a third lens 830 having positive refractive power, an aperture ST, A fourth lens 840 with positive refractive power and a fifth lens 850 with negative refractive power. Among them, the first lens 810, the second lens 820, and the third lens 830 constitute a front lens group with positive refractive power (not otherwise labeled), and the fourth lens 840 and fifth lens 850 constitute a rear lens group with positive refractive power (not otherwise Label). The optical imaging lens group 800 of the eighth embodiment may further include a filter element 860 and an imaging surface 870. Among them, the filter element 860 is disposed between the fifth lens 850 and the imaging surface 870. On the imaging surface 870, an image sensing element 801 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 810 has a negative refractive power, its object side 811 is concave, the image side 812 is concave, and both the object side 811 and the image side 812 are spherical. The first lens 810 is made of glass.

The second lens 820 has a positive refractive power, its object side 821 is convex, the image side 822 is concave, and both the object side 821 and the image side 822 are spherical. The second lens 820 is made of glass.

The third lens 830 has a positive refractive power, the object side surface 831 is a concave surface, the image side surface 832 is a convex surface, and the object side surface 831 and the image side surface 832 are both spherical surfaces. The third lens 830 is made of glass material.

The fourth lens 840 has a positive refractive power, its object side 841 is convex, the image side 842 is convex, and both the object side 841 and the image side 842 are spherical. The fourth lens 840 is made of glass.

The fifth lens 850 has a negative refractive power, its object side 851 is concave, the image side 852 is convex, and both the object side 851 and the image side 852 are spherical. The fifth lens 850 is made of glass. The image side 842 of the fourth lens 840 and the object side 851 of the fifth lens are cemented with each other to form a cemented lens.

The filter element 860 is disposed between the fifth lens 850 and the imaging surface 870, the two surfaces 861 and 862 are both flat, and the material is glass.

The image sensor 801 is, for example, a charge-coupled device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

The detailed optical data of the optical imaging lens group 800 of the eighth embodiment is listed in Table 14. Eighth embodiment EFL = 2.46 mm, Fno = 2.01, HFOV = 60 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 811 -657.909 0.500 1.776 49.6 -3.01 glass 812 2.346 1.410 Second lens 821 4.501 1.600 1.839 37.3 5.63 glass 822 80.000 0.866 Third lens 831 -6.116 2.395 1.651 53.0 15.68 glass 832 -4.417 0.121 aperture ST 0.000 Fourth lens 841 4.676 1.886 1.700 55.5 2.39 glass 842 (glued surface) -2.166 0.000 Fifth lens 851 (glued surface) -2.166 0.500 1.855 23.8 -3.89 glass 852 -6.861 0.204 Filter element 861 flat 0.950 1.519 64.2 glass 862 flat 2.820 Imaging plane 870 flat Reference wavelength: 546 nm Table 14

In the eighth embodiment, the numerical values of the relational expressions of the optical imaging lens group 800 are listed in Table 15. It can be seen from Table 15 that the optical imaging lens group 800 of the eighth embodiment satisfies the requirements of relational expressions (1) to (21). Vd4 55.5 Vd5 23.8 Nd2 1.839 Nd4 1.700 Nd5 1.855 Sag4 (mm) 0.02 Sag5 (mm) 0.23 f23 (mm) 5.46 f45 (mm) 5.24 f123 (mm) 23.45 TTL (mm) 13.25 ImgH (mm) 2.10 Vd4+Vd5 79.3 (AT23+AT34)/TT25 0.13 f23/EFL 2.22 f3/EFL 6.38 CT3/EFL 0.97 Nd3 1.65 R8/EFL -0.88 f23/f45 1.04 TTL/ImgH 6.32 f1/EFL -1.23 AT23/(|Sag4|+|Sag5|) 3.43 (C3+C4)/(C3-C4) 1.12 (C5+C6)/(C5-C6) -6.20 (AT12+AT23)/EFL 0.93 R2/R1 -0.004 f123/EFL 9.54 Table 15

Referring to FIG. 8B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 800, respectively. It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three visible wavelengths of 436nm, 546nm, and 656nm at different heights can be concentrated near the imaging point, and the imaging point deviation can be controlled within + 0.08mm. It can be seen from the astigmatism aberration diagram (wavelength 546nm) that the sagittal aberration aberration varies within the entire field of view within + 0.05mm; the meridional astigmatism aberration across the entire field of view The focal length variation within is within + 0.05mm; and the distortion aberration can be controlled within 18%. As shown in FIG. 8B, the optical imaging lens group 800 of this embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Ninth embodiment

Referring to FIGS. 9A and 9B, FIG. 9A is a schematic diagram of creating an optical imaging lens group of a ninth embodiment. FIG. 9B creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the ninth embodiment in order from left to right.

As shown in FIG. 9A, the optical imaging lens group 900 of the ninth embodiment includes a first lens 910 having negative refractive power, a second lens 920 having positive refractive power, a third lens 930 having positive refractive power, an aperture ST, A fourth lens 940 with positive refractive power and a fifth lens 950 with negative refractive power. Among them, the first lens 910, the second lens 920, and the third lens 930 constitute a front lens group with positive refractive power (not otherwise labeled), and the fourth lens 940 and fifth lens 950 constitute a rear lens group with positive refractive power (not otherwise Label). The optical imaging lens group 900 of the ninth embodiment may further include a filter element 960 and an imaging surface 970. Among them, the filter element 960 is disposed between the fifth lens 950 and the imaging surface 970. On the imaging surface 970, an image sensing element 901 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 910 has a negative refractive power, its object side 911 is convex, the image side 912 is concave, and both the object side 911 and the image side 912 are spherical. The first lens 910 is made of glass.

The second lens 920 has a positive refractive power, its object side 921 is convex, the image side 922 is convex, and both the object side 921 and the image side 922 are spherical. The second lens 920 is made of glass.

The third lens 930 has a positive refractive power, its object side 931 is concave, the image side 932 is convex, and both the object side 931 and the image side 932 are spherical. The third lens 930 is made of glass.

The fourth lens 940 has a positive refractive power, its object side 941 is convex, the image side 942 is convex, and both the object side 941 and the image side 942 are spherical. The fourth lens 940 is made of glass material.

The fifth lens 950 has a negative refractive power, the object side surface 951 is a concave surface, the image side surface 952 is a convex surface, and the object side surface 951 and the image side surface 952 are both spherical surfaces. The fifth lens 950 is made of glass. The image side 942 of the fourth lens 940 and the object side 951 of the fifth lens are cemented with each other to form a cemented lens.

The filter element 960 is disposed between the fifth lens 950 and the imaging surface 970. Both surfaces 961 and 962 are flat surfaces, and the material is glass.

The image sensor 901 is, for example, a charge-coupled device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

The detailed optical data of the optical imaging lens group 900 of the ninth embodiment is listed in Table 16. Ninth embodiment EFL = 2.10 mm, Fno = 2.20, HFOV = 80 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 911 2,943.604 0.500 1.716 53.9 -3.15 glass 912 2.256 2.968 Second lens 921 6.346 1.003 1.839 37.3 6.91 glass 922 -62.901 0.400 Third lens 931 -5.096 1.933 1.534 48.8 23.35 glass 932 -4.096 0.140 aperture ST 0.000 Fourth lens 941 5.399 2.053 1.700 56.2 2.22 glass 942 (glued surface) -1.839 0.000 Fifth lens 951 (glued surface) -1.839 0.500 1.814 25.4 -3.41 glass 952 -6.114 0.204 Filter element 961 flat 0.950 1.519 64.2 glass 962 flat 2.883 Imaging plane 970 flat Reference wavelength: 546 nm Table 16

In the ninth embodiment, the numerical values of the relational expressions of the optical imaging lens group 900 are listed in Table 17. It can be seen from Table 17 that the optical imaging lens group 900 of the ninth embodiment satisfies the requirements of relational expressions (1) to (21). Vd4 56.2 Vd5 25.4 Nd2 1.839 Nd4 1.700 Nd5 1.814 Sag4 (mm) -0.02 Sag5 (mm) -0.29 f23 (mm) 6.32 f45 (mm) 5.36 f123 (mm) 17.65 TTL (mm) 13.53 ImgH (mm) 2.14 Vd4+Vd5 81.6 (AT23+AT34)/TT25 0.09 f23/EFL 3.01 f3/EFL 11.12 CT3/EFL 0.92 Nd3 1.53 R8/EFL -0.88 f23/f45 1.18 TTL/ImgH 6.33 f1/EFL -1.50 AT23/(|Sag4|+|Sag5|) 1.26 (C3+C4)/(C3-C4) 0.82 (C5+C6)/(C5-C6) -9.19 (AT12+AT23)/EFL 1.60 R2/R1 0.001 f123/EFL 8.41 Table 17

Referring to FIG. 9B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 900, respectively. It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three visible wavelengths of 436nm, 546nm, and 656nm at different heights can be concentrated near the imaging point, and the imaging point deviation can be controlled within + 0.07mm. As can be seen from the astigmatic aberration diagram (wavelength 546nm), the sagittal aberration aberration varies within the entire field of view within + 0.04mm; the meridional astigmatism aberration across the entire field of view The focal length variation within is within + 0.04mm; and the distortion aberration can be controlled within 30%. As shown in FIG. 9B, the optical imaging lens group 900 of this embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Tenth embodiment

Referring to FIGS. 10A and 10B, FIG. 10A is a schematic diagram of creating an optical imaging lens assembly of a tenth embodiment. FIG. 10B creates the longitudinal spherical aberration diagram (Longitudinal Spherical Aberration), astigmatism aberration diagram (Astigmatism) and distortion aberration diagram (Distortion) of the tenth embodiment in order from left to right.

As shown in FIG. 10A, the optical imaging lens group 1000 of the tenth embodiment includes a first lens 1010 having negative refractive power, a second lens 1020 having positive refractive power, a third lens 1030 having positive refractive power, an aperture ST, A fourth lens 1040 with positive refractive power and a fifth lens 1050 with negative refractive power. Among them, the first lens 1010, the second lens 1020, and the third lens 1030 constitute a front lens group with positive refractive power (not otherwise labeled), and the fourth lens 1040 and fifth lens 1050 constitute a rear lens group with positive refractive power (not otherwise Label). The optical imaging lens group 1000 of the tenth embodiment may further include a filter element 1060 and an imaging surface 1070. The filter element 1060 is disposed between the fifth lens 1050 and the imaging surface 1070. On the imaging surface 1070, an image sensing element 1001 may be further provided to constitute an imaging device (not otherwise labeled).

The first lens 1010 has a negative refractive power, the object side surface 1011 is a convex surface, the image side surface 1012 is a concave surface, and both the object side surface 1011 and the image side surface 1012 are spherical surfaces. The first lens 1010 is made of glass.

The second lens 1020 has a positive refractive power, its object side 1021 is convex, the image side 1022 is convex, and both the object side 1021 and the image side 1022 are spherical. The second lens 1020 is made of glass.

The third lens 1030 has a positive refractive power, its object side 1031 is concave, the image side 1032 is convex, and both the object side 1031 and the image side 1032 are spherical. The third lens 1030 is made of glass.

The fourth lens 1040 has a positive refractive power, its object side 1041 is convex, the image side 1042 is convex, and both the object side 1041 and the image side 1042 are spherical. The fourth lens 1040 is made of glass material.

The fifth lens 1050 has a negative refractive power, the object side surface 1051 is a concave surface, the image side surface 1052 is a convex surface, and the object side surface 1051 and the image side surface 1052 are both spherical surfaces. The fifth lens 1050 is made of glass. The image side 1042 of the fourth lens 1040 and the object side 1051 of the fifth lens are cemented with each other to form a cemented lens.

The filter element 1060 is disposed between the fifth lens 1050 and the imaging surface 1070, the two surfaces 1061 and 1062 are both flat, and the material is glass.

The image sensing element 1001 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a complementary metal oxide semiconductor sensor (CMOS Image Sensor).

The detailed optical data of the optical imaging lens group 1000 of the tenth embodiment is listed in Table 18. Tenth embodiment EFL = 1.99 mm, Fno = 2.02, HFOV = 60 deg surface Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Material Subject flat unlimited First lens 1011 135.000 0.500 1.816 23.8 -2.20 glass 1012 1.771 0.780 Second lens 1021 4.524 1.836 1.686 41.1 4.13 glass 1022 -6.308 0.220 Third lens 1031 -3.201 1.958 1.784 44.3 13.87 glass 1032 -3.138 0.121 aperture ST Infinity 0.000 Fourth lens 1041 4.825 2.107 1.681 34.9 1.97 glass 1042 (glued surface) -1.534 0.000 Fifth lens 1051 (glued surface) -1.534 0.500 1.741 52.3 -2.92 glass 1052 -6.023 0.204 Filter element 1061 flat 0.950 1.508 64.2 glass 1062 flat 2.319 Imaging plane 1070 flat Reference wavelength: 940 nm Table 18

In the tenth embodiment, the numerical values of the relational expressions of the optical imaging lens group 1000 are listed in Table 19. It can be seen from Table 19 that the optical imaging lens group 1000 of the tenth embodiment satisfies the requirements of relational expressions (1) to (21). Vd4 34.9 Vd5 52.3 Nd2 1.686 Nd4 1.681 Nd5 1.741 Sag4 (mm) -0.15 Sag5 (mm) -0.30 f23 (mm) 4.31 f45 (mm) 4.83 f123 (mm) 15.24 TTL (mm) 11.49 ImgH (mm) 1.78 Vd4+Vd5 87.2 (AT23+AT34)/TT25 0.05 f23/EFL 2.15 f3/EFL 6.93 CT3/EFL 0.98 Nd3 1.78 R8/EFL -0.77 f23/f45 0.89 TTL/ImgH 6.45 f1/EFL -1.10 AT23/(|Sag4|+|Sag5|) 0.49 (C3+C4)/(C3-C4) 0.16 (C5+C6)/(C5-C6) -100.83 (AT12+AT23)/EFL 0.50 R2/R1 0.01 f123/EFL 7.62 Table 19

Referring to FIG. 10B, from left to right in the figure are a longitudinal spherical aberration diagram, an astigmatic aberration diagram, and a distortion aberration diagram of the optical imaging lens group 1000, respectively. From the longitudinal spherical aberration diagram, it can be seen that the three near-infrared rays of 900nm, 940nm, and 980nm at different heights can be concentrated near the imaging point, and the deviation of the imaging point can be controlled within + 0.05mm. It can be seen from the astigmatic aberration diagram (wavelength 940nm) that the sagittal aberration aberration varies within + 0.04mm of the focal length in the entire field of view; the meridional astigmatism aberration in the entire field of view The focal length variation within is within + 0.04mm; and the distortion aberration can be controlled within 15%. As shown in FIG. 10B, the optical imaging lens group 1000 of this embodiment has corrected various aberrations well, which meets the imaging quality requirements of the optical system. Eleventh embodiment

The eleventh embodiment of the present invention is an imaging device. The imaging device includes the optical camera lens group as described in the foregoing first to tenth embodiments, and an image sensing element. The image sensing device is, for example, a charge-coupled device (Charge-Coupled Device, CCD) or a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) image sensing device. The imaging device is, for example, a camera module for vehicle photography, a camera module for portable electronic products, or a camera module for surveillance cameras. Twelfth embodiment

The twelfth embodiment of the present invention is an electronic device. The electronic device includes the imaging device as the eleventh embodiment. The electronic device is, for example, a driving recorder, a reversing camera or a surveillance camera.

Although this creation is described using the foregoing several embodiments, these embodiments are not intended to limit the scope of this creation. For anyone who is familiar with this skill, without departing from the spirit and scope of this creation, you can still refer to the content of the embodiments disclosed in this creation to make various changes in form and detail. Therefore, what needs to be understood here is that this creation is subject to the scope defined in the following patent applications, and any changes made within the scope of the patent application or its equivalent should still fall within the application of this creation Within the scope of the patent.

100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 ‧‧‧ optical camera lens group 110, 210, 310, 410, 510, 610, 710, 810, 910, 1010‧‧‧ First lens 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020 130, 230, 330, 430, 530, 630, 730, 830, 930, 1030‧‧‧ third lens 140, 240, 340, 440, 540, 640, 740, 840, 940, 1040‧‧‧ fourth lens 150, 250, 350, 450, 550, 650, 750, 850, 950, 1050‧‧‧ fifth lens 160, 260, 360, 460, 560, 660, 760, 860, 960, 1060 170, 270, 370, 470, 570, 670, 770, 870, 970, 1070 111, 211, 311, 411, 511, 611, 711, 811, 911, 1011 112, 212, 312, 412, 512, 612, 712, 812, 912, 1012 ‧‧‧ Image side of the first lens 121, 221, 321, 421, 521, 621, 721, 821, 921, 1021‧‧‧Object side of the second lens 122, 222, 322, 422, 522, 622, 722, 822, 922, 1022 ‧‧‧ Image side of the second lens 131, 231, 331, 431, 531, 631, 731, 831, 931, 1031‧‧‧Object side of third lens 132, 232, 332, 432, 532, 632, 732, 832, 932, 1032 ‧‧‧ Image side of the third lens 141, 241, 341, 441, 541, 641, 741, 841, 941, 1041 142, 242, 342, 442, 542, 642, 742, 842, 942, 1042 ‧‧‧ Image side of the fourth lens 151, 251, 351, 451, 551, 651, 751, 851, 951, 1051 152, 252, 352, 452, 552, 652, 752, 852, 952, 1052 ‧‧‧ Image side of the fifth lens 161, 162, 261, 262, 361, 362, 461, 462, 561, 562, 661, 662, 761, 762, 861, 862, 961, 962, 1061, 1062 101, 201, 301, 401, 501, 601, 701, 801, 901, 1001 A‧‧‧Intersection of lens side and optical axis B‧‧‧Maximum effective radius of the side of the lens object I‧‧‧optic axis Sag‧‧‧Density of lens surface ST‧‧‧ Aperture

[FIG. 1A] A schematic diagram of an optical camera lens group of the first embodiment of the creation; [Figure 1B] The longitudinal spherical aberration diagram, astigmatism aberration diagram, and distortion aberration diagram of the first embodiment are created from left to right in order; [FIG. 2A] This is a schematic diagram of the optical camera lens group of the second embodiment of the creation; [FIG. 2B] The longitudinal spherical aberration diagram, the astigmatic aberration diagram, and the distortion aberration diagram of the second embodiment are sequentially created from left to right in this order; [FIG. 3A] A schematic diagram of an optical camera lens group of the third embodiment of the invention; [Figure 3B] The longitudinal spherical aberration diagram, astigmatism aberration diagram and distortion aberration diagram of the third embodiment are sequentially created from left to right; [FIG. 4A] A schematic diagram of an optical camera lens group according to the fourth embodiment of the invention; [Figure 4B] The longitudinal spherical aberration diagram, astigmatism aberration diagram, and distortion aberration diagram of the fourth embodiment are sequentially created from left to right; [FIG. 5A] This is a schematic diagram of the optical imaging lens group of the fifth embodiment of the creation; [FIG. 5B] The longitudinal spherical aberration diagram, the astigmatic aberration diagram, and the distortion aberration diagram of the fifth embodiment are sequentially created from left to right; [FIG. 6A] A schematic diagram of an optical camera lens group of the sixth embodiment of the invention; [Fig. 6B] The longitudinal spherical aberration diagram, the astigmatic aberration diagram and the distortion aberration diagram of the sixth embodiment are created from left to right in order; [FIG. 7A] A schematic diagram of an optical camera lens group of the seventh embodiment of the creation; [FIG. 7B] The longitudinal spherical aberration diagram, astigmatism aberration diagram, and distortion aberration diagram of the seventh embodiment are sequentially created from left to right; [FIG. 8A] This is a schematic diagram of the optical imaging lens group of the eighth embodiment of the creation; [Figure 8B] The longitudinal spherical aberration diagram, astigmatic aberration diagram, and distortion aberration diagram of the eighth embodiment are sequentially created from left to right; [FIG. 9A] This is a schematic diagram of the optical imaging lens group of the ninth embodiment of the creation; [FIG. 9B] The longitudinal spherical aberration diagram, astigmatism aberration diagram, and distortion aberration diagram of the ninth embodiment are created in order from left to right; [FIG. 10A] This is a schematic diagram of the optical camera lens group of the tenth embodiment of the creation; [FIG. 10B] The longitudinal spherical aberration diagram, astigmatic aberration diagram, and distortion aberration diagram of the tenth embodiment are sequentially created from left to right; and [FIG. 11] This is a schematic diagram of the sagging value (Sag) of the lens surface of the creative example.

100‧‧‧Optical camera lens group

110‧‧‧ First lens

120‧‧‧Second lens

130‧‧‧third lens

140‧‧‧ fourth lens

150‧‧‧ fifth lens

160‧‧‧filter element

170‧‧‧Imaging surface

111‧‧‧Object side of the first lens

112‧‧‧Image side of the first lens

121‧‧‧Object side of the second lens

122‧‧‧Image side of the second lens

131‧‧‧Object side of the third lens

132‧‧‧Image side of third lens

141‧‧‧Object side of fourth lens

142‧‧‧Image side of fourth lens

151‧‧‧Object side of fifth lens

152‧‧‧Image side of the fifth lens

161, 162‧‧‧The second surface of the filter element

101‧‧‧Image sensor

I‧‧‧optic axis

ST‧‧‧ Aperture

Claims (19)

An optical camera lens group, which sequentially includes from the object side to the image side: A first lens with negative refractive power, the image side of which is concave; A second lens with positive refractive power, the object side of which is convex; A third meniscus lens with positive refractive power, the object side is concave and the image side is convex; An aperture A fourth lens with positive refractive power, whose object side and image side are convex; and A fifth lens with negative refractive power has a concave object surface and a convex image side; wherein the fourth lens and the fifth lens are cemented lenses, and the fourth lens and the fifth lens include at least one having High dispersion coefficient lens and a low dispersion coefficient lens; the total number of lenses of the optical imaging lens group is five; the refractive index of the second lens is Nd2, the refractive index of the fourth lens is Nd4, the refractive index of the fifth lens Is Nd5; the dispersion coefficients of the fourth lens and the fifth lens are Vd4 and Vd5; the distance between the image side of the second lens and the object side of the third lens on the optical axis is AT23; the distance of the third lens The distance from the image side to the object side of the fourth lens on the optical axis is AT34; the distance from the object side of the second lens to the image side of the fifth lens on the optical axis is TT25; the second lens and the first The combined focal length of the three lenses is f23, and the effective focal length of this optical imaging lens group is EFL. This optical imaging lens group satisfies the following conditions: Nd2≧1.68, Nd4≧1.68, Nd5≧1.68; Vd4+Vd5<100; 0.04＜(AT23+AT34)/TT25＜0.16 and 1.75<f23/EFL<3.3. An optical imaging lens group as claimed in item 1 of the patent scope, wherein the optical imaging lens group satisfies the following conditions: 0.7<f23/f45<1.3; Where f45 is the combined focal length of the fourth lens and the fifth lens. An optical imaging lens group as claimed in item 1 of the patent scope, wherein the optical imaging lens group satisfies the following conditions: Nd4<Nd5; Vd4>Vd5; and 5＜TTL/ImgH＜7; Where, TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens group on the optical axis, and ImgH is the maximum image height of the optical imaging lens group on the imaging surface. An optical camera lens group, which sequentially includes from the object side to the image side: A first lens with negative refractive power, the image side of which is concave; A second lens with positive refractive power, the object side of which is convex; A meniscus-shaped third lens with positive refractive power, the object side of which is concave and the image side of which is convex, where the combined focal length of the first lens to the third lens is positive; An aperture A fourth lens with positive refractive power, the object side and the image side are convex; and A fifth lens with negative refractive power has a concave surface on the object side and a convex surface on the image side, wherein the fourth lens and the fifth lens are cemented lenses, and the fourth lens and the fifth lens include at least one having A high dispersion coefficient lens and a low dispersion coefficient lens; wherein, the total number of lenses of the optical imaging lens group is five; the refractive index of the second lens is Nd2, the refractive index of the fourth lens is Nd4, and the refractive index of the fifth lens The refractive index is Nd5; the dispersion coefficient of the fourth lens is Vd4, and the dispersion coefficient of the fifth lens is Vd5; the radius of curvature of the object side and the image side of the first lens are R1, R2; the first lens, the The combined focal length of the second lens and the third lens is f123, and the effective focal length of the optical imaging lens group is EFL; the optical imaging lens group satisfies the following conditions: Nd2≧1.68, Nd4≧1.68, Nd5≧1.68; Vd4+Vd5<100; -0.01＜R2/R1＜0.03; and 4<f123/EFL<20. For example, the optical imaging lens group of claim 4 of the patent scope, wherein the optical imaging lens group satisfies the following conditions: 0.04＜(AT23+AT34)/TT25＜0.16; Where AT23 is the distance from the image side of the second lens to the object side of the third lens on the optical axis, AT34 is the distance from the image side of the third lens to the object side of the fourth lens on the optical axis, and TT25 is the first The distance between the object side of the two lenses and the side of the fifth lens item on the optical axis. For example, the optical imaging lens group of claim 4 of the patent scope, wherein the optical imaging lens group satisfies the following conditions: 1.75＜f23/EFL＜3.3; Where, f23 is the combined focal length of the second lens and the three lenses. For example, the optical imaging lens group of claim 1 or 4 of the patent scope, wherein the optical imaging lens group satisfies the following conditions: -1＜R8/EFL＜-0.6; Where R8 is the radius of curvature of the image side of the fourth lens. For example, the optical imaging lens group of claim 1 or 4 of the patent scope, wherein the optical imaging lens group satisfies the following conditions: 0.4＜AT23/(|Sag4|+|Sag5|)＜3.5; Where Sag4 is the horizontal distance from the intersection of the image side of the second lens and the optical axis to the position of the maximum effective radius of its image side, and Sag5 is the position of the intersection of the object side of the third lens and the optical axis to the position of the maximum effective radius of its object side Horizontal distance. For example, in the optical imaging lens group of claim 1 or claim 4, the third lens satisfies the following conditions: 5<f3/EFL<12; and 0.6＜CT3/EFL＜1.2; Where, f3 is the focal length of the third lens, and CT3 is the thickness of the third lens. For example, the optical imaging lens group of claim 9 of the patent scope, wherein the third lens satisfies the following conditions: Nd3＜1.6; Where Nd3 is the refractive index of the third lens. For example, the optical imaging lens group of claim 1 or 4 of the patent scope, wherein the optical imaging lens group satisfies the following conditions: -1.6＜f1/EFL＜-1; Where f1 is the focal length of the first lens. For example, in the optical imaging lens group of claim 1 or claim 4, the image side of the second lens is convex. For example, in the optical imaging lens group of claim 1 or claim 4, the second lens satisfies the following conditions: 0.15＜ (C3+C4)/(C3-C4)＜1.2; Where C3 is the curvature of the object side of the two lenses, and C4 is the curvature of the image side of the second lens. For example, in the optical imaging lens group of claim 1 or claim 4, the third lens satisfies the following conditions: -105＜ (C5+C6)/(C5-C6)＜-5; Where, C5 is the curvature of the object side of the three lenses, and C6 is the curvature of the image side of the third lens. For example, the optical imaging lens group of claim 14 of the patent scope, wherein the third lens further satisfies the following conditions: -12< (C5+C6)/(C5-C6)<-5. For example, the optical imaging lens group of claim 9 of the patent scope, wherein the optical imaging lens group further satisfies the following conditions: 5<f3/EFL<8. For example, the optical imaging lens group of claim 1 or 4 of the patent scope, wherein the optical imaging lens group satisfies the following conditions: 0.4＜(AT12+AT23)/EFL＜1.7; Where, AT12 is the distance from the image side of the first lens to the object side of the second lens on the optical axis, and AT23 is the distance from the image side of the second lens to the object side of the third lens on the optical axis. An imaging device includes an optical camera lens group as claimed in item 1 or item 4, and an image sensing element. An electronic device including an imaging device as claimed in item 18 of the patent scope.

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