TWI736228B - Optical imaging lens - Google Patents

Abstract

An optical imaging lens including a first lens element to a sixth lens element arranged in sequence from an object side to an image side along an optical axis is provided. Each of the first lens element to the sixth lens element includes an object-side surface and an image-side surface. The first lens element is arranged to be a lens element having refracting power in a first order from the object side to the image side. The second lens element is arranged to be a lens element having refracting power in a second order from the object side to the image side. The third lens element is arranged to be a lens element having refracting power in a third order from the object side to the image side. The fourth lens element is arranged to be a lens element having refracting power in a first order from an aperture to the image side. The fifth lens element is arranged to be a lens element having refracting power in a second order from the aperture to the image side. The sixth lens element is arranged to be a lens element having refracting power in a third order from the aperture to the image side.

Description

Optical imaging lens

The present invention generally relates to an optical imaging lens. Specifically, the present invention specifically refers to an optical imaging lens mainly used for shooting and recording images, and can be applied to portable electronic products, such as mobile phones, cameras, tablets, and personal digital assistants (Personal Digital Assistant). , PDA), car camera, virtual reality tracker (Virtual Reality (VR) Tracker) and other devices.

The specifications of consumer electronic products are changing with each passing day, and the pursuit of lightness, thinness and shortness has not slowed down. Therefore, the specifications of key components of electronic products such as optical lenses must also be continuously improved to meet consumer needs. In addition to the imaging quality and volume, the most important characteristics of optical lenses are increasing the field of view (FOV). With the advancement of image sensing technology, the application of optical lenses is not only limited to shooting images and video, but also environmental monitoring, driving record photography and other needs, so in response to the driving environment or the environment with insufficient light, and consumers’ concerns about image quality, etc. It is required that in the field of optical lens design, in addition to the pursuit of thinness of the lens, it is also necessary to take into account the imaging quality and performance of the lens.

In addition, the difference in the environmental temperature of the electronic device can be The back focal length of the optical lens system can be changed, thereby affecting the imaging quality. Therefore, it is expected that the back focal length of the lens group is not easily affected by temperature changes.

In view of the above-mentioned problems, in addition to good imaging quality, the lens also has a low back focal length variation under different ambient temperatures and an increase in the viewing angle, which is the focus of improvement in the design of this field. However, optical lens design does not simply reduce the ratio of the lens with good imaging quality to produce an optical lens with both imaging quality and miniaturization. The design process not only involves material characteristics, but also must consider production, assembly yield and other production. The actual problem of the face.

On the other hand, the application areas of automotive lenses continue to increase. From reversing, 360-degree panoramic views, lane shifting systems to advanced driver assistance systems (ADAS), etc., a car uses 6 to 20 lenses. The lens specifications have also continued to improve, upgrading from VGA (300,000) to more than one million pixels. However, there is still much room for improvement in the imaging quality of car lenses and the imaging quality of tens of millions of pixels in mobile phone lenses.

For example, in order to avoid blind angles of the field of view in the functions of reversing and 360-degree panoramic view, the optical imaging lens needs to be able to take in imaging light with a horizontal field of view (Horizontal field of view) of 180±5 degrees.

In addition, the existing conventional image sensors have two aspect ratios: 4:3 and 16:9. First, for an image sensor with an aspect ratio of 4:3, the ratio of the diagonal field of view (Diagonal field) to the horizontal field of view (Horizontal field) is 1:0.8. On the other hand, for a 16:9 image sensor, the ratio of the diagonal field of view to the horizontal field of view is 1:0.8716.

According to the ideal image height formula: y=f*tan(ω), y is the image height, f is the focal length, and ω is the half angle of view. The relationship between the image height y and the half angle of view ω is a tangent function, and the distortion formula is (y ₁ -y ₀ )/y ₀ , y ₁ is the distorted image height, and y ₀ is the initial image height. In order to reduce distortion aberrations, the image height and the half angle of view are not in equal proportions. Therefore, if an optical imaging lens with a diagonal angle of view of 200 to 220 degrees is used, it can only capture 140 to 160 degrees in a 0.8 field of view. In the 0.8716 field of view, it can only take in the imaging light of 150~170 degrees, and this will cause the following problems.

In order to reduce the distortion aberration, take an image sensor with an aspect ratio of 4:3 as an example. When the diagonal field of view of the 4:3 image sensor captures imaging light of 200 to 220 degrees, it is due to 4:3 The horizontal field of view of the image sensor can only take in imaging light from 140 to 160 degrees, and part of the imaging light cannot be taken in, which will make the horizontal field of view have a partial blind angle.

To solve the above-mentioned blind angle problem, the possible solution is to reduce the optical imaging lens proportionally or enlarge the image sensor with the aspect ratio of 4:3 to make the image sensor with the aspect ratio of 4:3. The horizontal field of view of the device can take in 180±5 degrees of imaging light. However, this leads to the problem of dark corners that cannot receive imaging light at the four corners of the image sensor with an aspect ratio of 4:3.

In view of this, in the embodiments of the present invention, an optical imaging lens that can increase the half angle of view of the lens, has a low focal length shift under different ambient temperatures, and can maintain an appropriate length of the lens. The optical imaging lens of the present invention includes an object side, an image side, and an optical axis. The first lens is from the object side to the image side, the first lens has refractive power, and the second lens is from the object side to the image side. Two lenses with refractive power, the first The three lenses are from the image side to the object side, the fourth lens has refractive power, the fourth lens is from the image side to the object side, the third lens has refractive power, and the fifth lens is from the image side to the object side. The second lens has refractive power, the sixth lens is from the image side to the object side, and the first lens has refractive power. A side surface of an object through which light passes, and an image side surface that faces the image side and allows an imaging light to pass through.

4.800。 In the embodiment of the present invention, the second lens has negative refractive power, the object side of the second lens has a convex surface near the optical axis and a convex surface near the circumference. The material of the third lens is plastic. The object side of the third lens has a concave surface near the optical axis, the object side of the fourth lens has a convex surface near the optical axis, the object side of the fifth lens has a concave surface near the circumference, the fifth lens The image side surface of the sixth lens has a concave surface area near the optical axis and a concave surface area near the circumference. The image side surface of the sixth lens has a convex surface area near the optical axis and a convex surface area near the circumference. G12 is the distance between the image side of the first lens and the object side of the second lens on the optical axis, G34 is the distance between the image side of the third lens and the object side of the fourth lens on the optical axis, and T3 is defined as the third lens The center thickness on the optical axis, EFL is defined as the effective focal length of the optical imaging lens, and meets the following conditions: (G12+T3+G34)/EFL

4.800.

In the embodiments of the present invention, an optical imaging lens that can increase the half angle of view of the lens, has a low focal length offset under different ambient temperatures, and can maintain an appropriate length of the lens. The optical imaging lens of the present invention includes an object side, an image side, and an optical axis. The first lens is from the object side to the image side. The first lens has refractive power. The second lens is from the object side to the image side, the second lens has refractive power, the third lens is from the image side to the object side, the fourth lens has refractive power, and the fourth lens is from the image side to the object side. Count the third lens with refractive power, the fifth lens from the image side to the object side, the second lens with refractive power, and the sixth lens from the image side to the object side, and the first lens with refractive power. The first lens to the sixth lens each include an object side surface facing the object side and passing an imaging light, and an image side facing the image side and passing an imaging light.

4.800。 In the embodiment of the present invention, the second lens has negative refractive power, the object side of the second lens has a convex surface near the optical axis and a convex surface near the circumference. The material of the third lens is plastic. The object side of the third lens has a concave surface near the optical axis, the image side of the third lens has a convex surface near the optical axis, and the object side of the fourth lens has a convex surface near the optical axis. The image side surface of the five lens has a concave surface near the optical axis and a concave surface near the circumference. The image side surface of the sixth lens has a convex surface near the optical axis and a convex surface near the circumference. , Where G12 is the distance between the image side of the first lens and the object side of the second lens on the optical axis, G34 is the distance between the image side of the third lens and the object side of the fourth lens on the optical axis, and T3 is defined as the first The center thickness of the three lenses on the optical axis, EFL is defined as the effective focal length of the optical imaging lens, and meets the following conditions: (G12+T3+G34)/EFL

4.800.

In the embodiments of the present invention, an optical imaging lens that can increase the half angle of view of the lens, has a low focal length offset under different ambient temperatures, and can maintain an appropriate length of the lens. The optical imaging lens of the present invention includes an object side, an image side, and Optical axis, the first lens is from the object side to the image side, the first lens has refractive power, the second lens is from the object side to the image side, the second lens has refractive power, and the third lens is the image The fourth lens is from the side to the object side, the fourth lens is from the image side to the object side, the third is the lens from the object side, and the fifth lens is from the image side to the object side and the second is The sixth lens is a lens with refractive power from the image side to the object side, and the first lens to the sixth lens each include a lens that faces the object side and allows an imaging light to pass through. The object side and an image side that faces the image side and allows an imaging light to pass through.

4.800。 In the embodiment of the present invention, the object side of the second lens has a convex surface near the optical axis and a convex surface near the circumference. The material of the third lens is plastic, and the third lens has positive refractive power. The object side of the third lens has a concave surface near the optical axis, the object side of the fourth lens has a convex surface near the optical axis, the image side of the fifth lens has a concave surface near the optical axis, and A concave surface area near the circumference, the image side surface of the sixth lens has a convex surface area near the optical axis, and a convex surface area near the circumference area, where G12 is the image side surface of the first lens and the object side surface of the second lens The distance on the optical axis, G34 is the distance between the image side of the third lens and the object side of the fourth lens on the optical axis, T3 is defined as the center thickness of the third lens on the optical axis, EFL is defined as the optical imaging lens Effective focal length, and meet the following conditions: (G12+T3+G34)/EFL

4.800.

5.800。 In the optical imaging lens of the present invention, G45 is the distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis, and T5 is the center thickness of the fifth lens on the optical axis , G56 is the distance between the image side of the fifth lens and the object side of the sixth lens on the optical axis, and G23 is the distance between the image side of the second lens and the object side of the third lens on the optical axis. The distance on the axis, AAG is the sum of G12, G23, G34, G45 and G56, and meets the following conditions: AAG/(G34+G45+T5+G56)

5.800.

1.700。 In the optical imaging lens of the present invention, T2 is the central thickness of the second lens on the optical axis, and G45 is the distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis , And meet the following conditions: (T2+G34+G45)/EFL

1.700.

4.300。 In the optical imaging lens of the present invention, ALT is the sum of the central thickness of all lenses with refractive power in the optical imaging lens on the optical axis, and T6 is the central thickness of the sixth lens on the optical axis, and satisfies The following conditions: ALT/T6

4.300.

2.100。 In the optical imaging lens of the present invention, T1 is the central thickness of the first lens on the optical axis, and meets the following conditions: G12/T1

2.100.

2.700。 In the optical imaging lens of the present invention, T1 is the central thickness of the first lens on the optical axis, and T4 is the central thickness of the fourth lens on the optical axis, and meets the following conditions: (T1+T3)/ T4

2.700.

1.600。 In the optical imaging lens of the present invention, BFL is the length from the image side of the sixth lens to an imaging surface on the optical axis, and G23 is the image side of the second lens and the object side of the third lens The distance on the optical axis and meet the following conditions: BFL/G23

1.600.

2.500。 In the optical imaging lens of the present invention, T6 is the center thickness of the sixth lens on the optical axis, and G23 is the distance between the image side surface of the second lens and the object side surface of the third lens on the optical axis , G45 is the distance between the image side of the fourth lens and the object side of the fifth lens on the optical axis, and G56 is the distance between the image side of the fifth lens and the object side of the sixth lens on the optical axis. The distance on the axis, AAG is the sum of G12, G23, G34, G45 and G56, and meets the following conditions: AAG/T6

2.500.

1.400。 In the optical imaging lens of the present invention, the following conditions are more satisfied: T3/EFL

1.400.

4.700。 In the optical imaging lens of the present invention, ALT is the sum of the central thickness of all lenses with refractive power in the optical imaging lens on the optical axis, and G23 is the image side surface of the second lens and the third lens. The distance of the object side on the optical axis, and meet the following conditions: ALT/G23

4.700.

1.400。 In the optical imaging lens of the present invention, G12 is the distance between the image side surface of the first lens and the object side surface of the second lens on the optical axis, and T2 is the center thickness of the second lens on the optical axis , And meet the following conditions: G12/(T2+G34+G45)

1.400.

8.400。 In the optical imaging lens of the present invention, TL is the distance from the object side of the first lens to the image side of the sixth lens on the optical axis, and T4 is the center thickness of the fourth lens on the optical axis , BFL is the length from the image side of the sixth lens to an imaging surface on the optical axis, and meets the following conditions: TL/(T4+BFL)

8.400.

6.500。 In the optical imaging lens of the present invention, TTL is the length from the object side of the first lens to an imaging surface on the optical axis, and G45 is the image side of the fourth lens and the object side of the fifth lens The distance on the optical axis, T5 is the center thickness of the fifth lens on the optical axis, G56 is the distance between the image side surface of the fifth lens and the object side surface of the sixth lens on the optical axis, And meet the following conditions: TTL/(T3+G34+G45+T5+G56)

6.500.

2.300。 In the optical imaging lens of the present invention, G23 is the distance between the image side of the second lens and the object side of the third lens on the optical axis, and G45 is the distance between the image side of the fourth lens and the fifth lens. The distance between the object side of the lens on the optical axis, G56 is the distance between the image side of the fifth lens and the object side of the sixth lens on the optical axis, and AAG is G12, G23, G34, G45 and The sum of G56, and meet the following conditions: AAG/G23

2.300.

2.000。 In the optical imaging lens of the present invention, G45 is the distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis, and T5 is the center thickness of the fifth lens on the optical axis , G56 is the distance between the image side surface of the fifth lens and the object side surface of the sixth lens on the optical axis, and meets the following conditions: (G34+G45+T5+G56)/EFL

2.000.

2.200。 In the optical imaging lens of the present invention, T1 is the central thickness of the first lens on the optical axis, and T4 is the central thickness of the fourth lens on the optical axis, and meets the following conditions: (T1+G12)/ T4

2.200.

12.100。 In the optical imaging lens of the present invention, TL is the distance from the object side of the first lens to the image side of the sixth lens on the optical axis, and T2 is the center thickness of the second lens on the optical axis, G45 is the distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis, and meets the following conditions: TL/(T2+G34+G45)

12.100.

1.600。 In the optical imaging lens of the present invention, BFL is the length from the image side surface of the sixth lens to an imaging surface on the optical axis, and T6 is the center thickness of the sixth lens on the optical axis, and meets the following conditions : BFL/T6

1.600.

The present invention provides an optical imaging lens, which can make the horizontal viewing angle corresponding to an image sensor using the optical imaging lens greater than or equal to 175 degrees, and the image sensed by the image sensor has no vignetting.

An embodiment of the present invention provides an optical imaging lens that includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in order from the object side to the image side along the optical axis. Each of the first lens to the sixth lens includes an object side surface that faces the object side and allows imaging light to pass through, and an image side surface that faces the image side and allows imaging light to pass through. The first lens is the first lens having refractive power from the object side to the image side. The second lens is the second lens having refractive power from the object side to the image side. The third lens is the third lens having refractive power from the object side to the image side. The fourth lens is the first lens with refractive power counted from one aperture to the image side. The fifth lens is the second lens with refractive power from the aperture to the image side. The sixth lens is the third lens with refractive power from the aperture to the image side. The imaging circle of the optical imaging lens has an inscribed rectangle with an aspect ratio of 4:3. A reference line passing through the center of the imaging circle and parallel to any long side of the rectangle corresponds to capturing images with a viewing angle greater than or equal to 175° and less than or equal to 188°, and the diagonal line of the rectangle corresponds to capturing images greater than or equal to 209° and less than Image equal to 234° angle of view. The reference line extends from one short side of the rectangle to the other short side of the rectangle. The length of the reference line is equal to the length of any long side of the rectangle.

An embodiment of the present invention provides an optical imaging lens, from the object side to the image The side along the optical axis sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. Each of the first lens to the sixth lens includes an object side surface that faces the object side and allows imaging light to pass through, and an image side surface that faces the image side and allows imaging light to pass through. The first lens is the first lens having refractive power from the object side to the image side. The second lens is the second lens having refractive power from the object side to the image side. The third lens is the third lens with refractive power counted from the object side to the image side, and the third lens has a concave surface located near the optical axis. The fourth lens is the first lens with refractive power counted from one aperture to the image side. The fifth lens is the second lens with refractive power from the aperture to the image side. The sixth lens is the third lens with refractive power from the aperture to the image side. The imaging circle of the optical imaging lens has an inscribed rectangle with an aspect ratio of 16:9. A reference line passing through a center of the imaging circle and parallel to any long side of the rectangle corresponds to capturing images with a viewing angle greater than or equal to 176° and less than or equal to 201°, and the diagonal line of the rectangle corresponds to capturing images greater than or equal to 205° and Images with an angle of view less than or equal to 232°. The reference line extends from one short side of the rectangle to the other short side of the rectangle. The length of the reference line is equal to the length of any long side of the rectangle.

Based on the above, the beneficial effects of the optical imaging lens of the embodiment of the present invention are: by satisfying the above-mentioned lens with refractive index and the arrangement of the aperture, the surface shape, the imaging circle of the optical imaging lens, the inscribed rectangle of the imaging circle, The relationship between the image of the angle of view of the reference line and the image of the angle of view of the diagonal. The image sensed by the image sensor of this optical imaging lens has no blind angle in the horizontal direction, and the four of the image sensor The imaging light can be sensed in each corner so that the image sensed by the image sensor has no vignetting.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

A~C: area

CE: Center of imaging circle

DL: diagonal

E: Extension

HL: reference line

IC: imaging circle

Lc: chief ray

Lm: marginal light

LE: Long side

RT: Inscribed rectangle

SE: short side

T1~T8: Center thickness of each lens

1: Optical imaging lens

2: Object side

3: image side

4. I: Optical axis

10: The first lens

20: second lens

30: third lens

40: fourth lens

50: Fifth lens

60: sixth lens

70: seventh lens

8: Eighth lens

80: aperture

90: filter

91: imaging surface

11, 21, 31, 41, 51, 61, 71, 81: Object side

12, 22, 32, 42, 52, 62, 72, 82: like side

13, 14, 23, 24, 36, 37, 43, 44, 46, 47, 53', 54', 56', 57', 63, 64, 66, 67, 74', 76, 77, 83, 86 , 87: convex face

16, 17, 26, 27, 33, 34, 43’, 47’, 53, 54, 56, 57, 63’, 64’, 73, 74, 84: concave surface

1 to 5 are schematic diagrams of the method for judging the curvature shape of the optical imaging lens of the present invention.

FIG. 6 is a schematic diagram of the first embodiment of the optical imaging lens of the present invention.

FIG. 7A illustrates the longitudinal spherical aberration on the imaging surface of the first embodiment.

FIG. 7B illustrates the astigmatic aberration in the sagittal direction of the first example.

FIG. 7C illustrates the astigmatic aberration in the tangential direction of the first example.

FIG. 7D shows the distortion aberration of the first embodiment.

FIG. 8 is a schematic diagram of a second embodiment of the optical imaging lens of the present invention.

FIG. 9A illustrates the longitudinal spherical aberration on the imaging surface of the second embodiment.

FIG. 9B illustrates the astigmatic aberration in the sagittal direction of the second example.

FIG. 9C illustrates the astigmatic aberration in the tangential direction of the second example.

FIG. 9D illustrates the distortion aberration of the second embodiment.

FIG. 10 is a schematic diagram of a third embodiment of the optical imaging lens of the present invention.

FIG. 11A illustrates the longitudinal spherical aberration on the imaging surface of the third embodiment.

FIG. 11B illustrates the astigmatic aberration in the sagittal direction of the third example.

FIG. 11C illustrates the astigmatic aberration in the tangential direction of the third example.

FIG. 11D shows the distortion aberration of the third embodiment.

FIG. 12 is a schematic diagram of a fourth embodiment of the optical imaging lens of the present invention.

FIG. 13A illustrates the longitudinal spherical aberration on the imaging surface of the fourth embodiment.

FIG. 13B illustrates the astigmatic aberration in the sagittal direction of the fourth example.

FIG. 13C illustrates the astigmatic aberration in the tangential direction of the fourth example.

FIG. 13D shows the distortion aberration of the fourth embodiment.

FIG. 14 is a schematic diagram of a fifth embodiment of the optical imaging lens of the present invention.

FIG. 15A shows the longitudinal spherical aberration on the imaging surface of the fifth embodiment.

FIG. 15B illustrates the astigmatic aberration in the sagittal direction of the fifth example.

FIG. 15C illustrates the astigmatic aberration in the tangential direction of the fifth example.

FIG. 15D shows the distortion aberration of the fifth embodiment.

FIG. 16 is a schematic diagram of a sixth embodiment of the optical imaging lens of the present invention.

FIG. 17A shows the longitudinal spherical aberration on the imaging surface of the sixth embodiment.

FIG. 17B illustrates the astigmatic aberration in the sagittal direction of the sixth example.

FIG. 17C illustrates the astigmatic aberration in the tangential direction of the sixth example.

FIG. 17D shows the distortion aberration of the sixth example.

FIG. 18 is a schematic diagram of a seventh embodiment of the optical imaging lens of the present invention.

FIG. 19A shows the longitudinal spherical aberration on the imaging surface of the seventh embodiment.

FIG. 19B illustrates the astigmatic aberration in the sagittal direction of the seventh example.

FIG. 19C illustrates the astigmatic aberration in the tangential direction of the seventh example.

FIG. 19D shows the distortion aberration of the seventh example.

FIG. 20 is a schematic diagram of an eighth embodiment of the optical imaging lens of the present invention.

FIG. 21A shows the longitudinal spherical aberration on the imaging surface of the eighth embodiment.

FIG. 21B illustrates the astigmatic aberration in the sagittal direction of the eighth example.

FIG. 21C illustrates the astigmatic aberration in the tangential direction of the eighth example.

FIG. 21D shows the distortion aberration of the eighth example.

FIG. 22 is a schematic diagram of a ninth embodiment of the optical imaging lens of the present invention.

FIG. 23A shows the longitudinal spherical aberration on the imaging surface of the ninth example.

FIG. 23B illustrates the astigmatic aberration in the sagittal direction of the ninth example.

FIG. 23C illustrates the astigmatic aberration in the tangential direction of the ninth example.

FIG. 23D shows the distortion aberration of the ninth example.

FIG. 24 is a schematic diagram of a tenth embodiment of the optical imaging lens of the present invention.

FIG. 25A shows the longitudinal spherical aberration on the imaging surface of the tenth embodiment.

FIG. 25B illustrates the astigmatic aberration in the sagittal direction of the tenth example.

FIG. 25C illustrates the astigmatic aberration in the tangential direction of the tenth example.

FIG. 25D illustrates the distortion aberration of the tenth example.

FIG. 26 is a schematic diagram of an eleventh embodiment of the optical imaging lens of the present invention.

FIG. 27A shows the longitudinal spherical aberration on the imaging surface of the eleventh example.

FIG. 27B illustrates the astigmatic aberration in the sagittal direction of the eleventh example.

FIG. 27C illustrates the astigmatic aberration in the tangential direction of the eleventh example.

FIG. 27D shows the distortion aberration of the eleventh example.

FIG. 28 is a schematic diagram of a twelfth embodiment of the optical imaging lens of the present invention.

FIG. 29A shows the longitudinal spherical aberration on the imaging surface of the twelfth example.

FIG. 29B illustrates the astigmatic aberration in the sagittal direction of the twelfth example.

FIG. 29C illustrates the astigmatic aberration in the tangential direction of the twelfth example.

FIG. 29D illustrates the distortion aberration of the twelfth example.

Fig. 30 shows detailed optical data of the first embodiment.

Fig. 31 shows detailed aspheric surface data of the first embodiment.

Fig. 32 shows detailed optical data of the second embodiment.

Fig. 33 shows detailed aspheric surface data of the second embodiment.

Fig. 34 shows detailed optical data of the third embodiment.

Fig. 35 shows detailed aspheric surface data of the third embodiment.

Fig. 36 shows detailed optical data of the fourth embodiment.

Fig. 37 shows detailed aspheric surface data of the fourth embodiment.

Fig. 38 shows detailed optical data of the fifth embodiment.

Fig. 39 shows detailed aspheric surface data of the fifth embodiment.

Fig. 40 shows detailed optical data of the sixth embodiment.

Fig. 41 shows detailed aspheric surface data of the sixth embodiment.

Fig. 42 shows detailed optical data of the seventh embodiment.

Fig. 43 shows detailed aspheric surface data of the seventh embodiment.

Fig. 44 shows detailed optical data of the eighth embodiment.

Fig. 45 shows detailed aspheric surface data of the eighth embodiment.

Fig. 46 shows detailed optical data of the ninth embodiment.

Fig. 47 shows detailed aspheric surface data of the ninth embodiment.

Fig. 48 shows detailed optical data of the tenth embodiment.

Fig. 49 shows detailed aspheric surface data of the tenth embodiment.

Fig. 50 shows detailed optical data of the eleventh embodiment.

Fig. 51 shows detailed aspheric surface data of the eleventh embodiment.

Fig. 52 shows detailed optical data of the twelfth embodiment.

Fig. 53 shows detailed aspheric surface data of the twelfth embodiment.

Figure 54 shows the important parameters of the first to fifth embodiments.

Figure 55 shows the important parameters of the first to fifth embodiments.

Figure 56 shows the important parameters of the sixth to twelfth embodiments.

Fig. 57 shows the important parameters of the sixth to twelfth embodiments.

FIG. 58A and FIG. 58B are schematic diagrams for explaining the imaging circle, inscribed rectangle and related parameters of the optical imaging lens of the embodiment of the present invention.

FIG. 59 is a schematic diagram of a thirteenth embodiment of the optical imaging lens of the present invention.

FIG. 60A shows the longitudinal spherical aberration on the imaging surface of the thirteenth example.

FIG. 60B shows the astigmatic aberration in the sagittal direction of the thirteenth example.

FIG. 60C illustrates the astigmatic aberration in the tangential direction of the thirteenth example.

FIG. 60D shows the distortion aberration of the thirteenth example.

FIG. 61 is a schematic diagram of a fourteenth embodiment of the optical imaging lens of the present invention.

Fig. 62A shows the longitudinal spherical aberration on the imaging surface of the fourteenth example.

FIG. 62B illustrates the astigmatic aberration in the sagittal direction of the fourteenth example.

FIG. 62C illustrates the astigmatic aberration in the tangential direction of the fourteenth example.

FIG. 62D shows the distortion aberration of the fourteenth example.

FIG. 63 is a schematic diagram of a fifteenth embodiment of the optical imaging lens of the present invention.

Fig. 64A shows the longitudinal spherical aberration on the imaging surface of the fifteenth example.

Fig. 64B shows the astigmatic aberration in the sagittal direction of the fifteenth example.

Fig. 64C shows the astigmatic aberration in the tangential direction of the fifteenth example.

Fig. 64D shows the distortion aberration of the fifteenth example.

FIG. 65 is a schematic diagram of a sixteenth embodiment of the optical imaging lens of the present invention.

Fig. 66A shows the longitudinal spherical aberration on the imaging surface of the sixteenth example.

FIG. 66B shows the astigmatic aberration in the sagittal direction of the sixteenth example.

FIG. 66C illustrates the astigmatic aberration in the tangential direction of the sixteenth example.

FIG. 66D shows the distortion aberration of the sixteenth example.

FIG. 67 is a schematic diagram of a seventeenth embodiment of the optical imaging lens of the present invention.

Fig. 68A shows the longitudinal spherical aberration on the imaging surface of the seventeenth example.

FIG. 68B shows the astigmatic aberration in the sagittal direction of the seventeenth example.

FIG. 68C shows the astigmatic aberration in the tangential direction of the seventeenth example.

FIG. 68D shows the distortion aberration of the seventeenth example.

FIG. 69 is a schematic diagram of an eighteenth embodiment of the optical imaging lens of the present invention.

FIG. 70A shows the longitudinal spherical aberration on the imaging surface of the eighteenth example.

FIG. 70B shows the astigmatic aberration in the sagittal direction of the eighteenth example.

FIG. 70C shows the astigmatic aberration in the tangential direction of the eighteenth example.

FIG. 70D shows the distortion aberration of the eighteenth example.

FIG. 71 is a schematic diagram of a nineteenth embodiment of the optical imaging lens of the present invention.

FIG. 72A shows the longitudinal spherical aberration on the imaging surface of the nineteenth example.

FIG. 72B shows the astigmatic aberration in the sagittal direction of the nineteenth example.

FIG. 72C illustrates the astigmatic aberration in the tangential direction of the nineteenth example.

FIG. 72D shows the distortion aberration of the nineteenth example.

FIG. 73 is a schematic diagram of the twentieth embodiment of the optical imaging lens of the present invention.

FIG. 74A shows the longitudinal spherical aberration on the imaging surface of the twentieth example.

FIG. 74B illustrates the astigmatic aberration in the sagittal direction of the twentieth example.

FIG. 74C illustrates the astigmatic aberration in the tangential direction of the twentieth example.

FIG. 74D shows the distortion aberration of the twentieth example.

FIG. 75 is a schematic diagram of the twenty-first embodiment of the optical imaging lens of the present invention.

Fig. 76A shows the longitudinal spherical aberration on the imaging surface of the twenty-first embodiment.

FIG. 76B illustrates the astigmatic aberration in the sagittal direction of the twenty-first example.

FIG. 76C illustrates the astigmatic aberration in the tangential direction of the twenty-first example.

FIG. 76D shows the distortion aberration of the twenty-first example.

Fig. 77 shows detailed optical data of the thirteenth example.

Fig. 78 shows detailed aspheric surface data of the thirteenth embodiment.

Fig. 79 shows detailed optical data of the fourteenth embodiment.

Fig. 80 shows detailed aspheric surface data of the fourteenth embodiment.

Fig. 81 shows detailed optical data of the fifteenth embodiment.

Fig. 82 shows detailed aspheric surface data of the fifteenth embodiment.

Fig. 83 shows detailed optical data of the sixteenth embodiment.

Fig. 84 shows detailed aspheric surface data of the sixteenth embodiment.

Fig. 85 shows detailed optical data of the seventeenth embodiment.

Fig. 86 shows detailed aspheric surface data of the seventeenth embodiment.

Fig. 87 shows detailed optical data of the eighteenth embodiment.

Fig. 88 shows detailed aspheric surface data of the eighteenth embodiment.

Fig. 89 shows detailed optical data of the nineteenth embodiment.

Fig. 90 shows detailed aspheric surface data of the nineteenth embodiment.

Fig. 91 shows detailed optical data of the twentieth embodiment.

Fig. 92 shows detailed aspheric surface data of the twentieth embodiment.

Fig. 93 shows detailed optical data of the twenty-first embodiment.

Fig. 94 shows detailed aspheric surface data of the twenty-first embodiment.

Fig. 95 shows the important parameters of the thirteenth to the seventeenth embodiment.

Fig. 96 shows the important parameters of the thirteenth to the seventeenth embodiment.

Fig. 97 shows the important parameters of the eighteenth to twenty-first embodiments.

Fig. 98 shows the important parameters of the eighteenth to twenty-first embodiments.

Figures 99 to 101 list the image height y, half angle of view ω (in degrees), half angle of view ω (in radians) and their corresponding values in the optical imaging lens 1 of the thirteenth to twenty-first embodiments. Correspondence of the value of y/(EFL * ω).

Before starting to describe the present invention in detail, it should be noted that in the drawings of the present invention, similar elements are represented by the same numbers. Among them, the "a lens with positive refractive power (or negative refractive power)" mentioned in this manual means that the refractive power on the optical axis of the lens calculated by Gaussian optics is positive (or negative) ). The image side and object side are defined as the range through which the imaging light passes. The imaging light includes chief ray Lc and marginal ray Lm. As shown in Figure 1, I is the optical axis and this lens is Are symmetrical to each other radially with the optical axis I as the axis of symmetry, The area where the light passes through the optical axis is the area A near the optical axis, and the area where the edge light passes is the area C near the circumference. In addition, the lens also includes an extension E (that is, the area near the circumference C radially outward). In order for the lens to be assembled in an optical imaging lens, ideal imaging light does not pass through the extension E, but the structure and shape of the extension E are not limited to this. The following embodiments are omitted for the sake of simplicity. Part of the extension. In more detail, the method of determining the area of the surface shape or the area near the optical axis, the area near the circumference, or the range of multiple areas is as follows:

Please refer to FIG. 1, which is a cross-sectional view of the lens in the radial direction. From the cross-sectional view, when judging the scope of the aforementioned area, a center point is defined as an intersection point on the lens surface with the optical axis, and a conversion point is a point on the lens surface and a tangent line passing through the point. It is perpendicular to the optical axis. If there are a plurality of conversion points radially outwards, they will be the first conversion point and then the second conversion point in sequence, and the conversion point farthest in the radial direction from the optical axis on the effective half-effect radius is the Nth conversion point. The range between the center point and the first conversion point is the area near the optical axis, the radially outward area of the Nth conversion point is the area near the circumference, and different areas can be distinguished according to each conversion point. In addition, the effective radius is the vertical distance from the intersection of the edge ray Lm and the lens surface to the optical axis I.

As shown in Figure 2, the shape of the region is determined by the intersection of the light (or light extension line) passing through the region in parallel with the optical axis on the image side or the object side (light focus determination method). For example, when the light passes through this area, the light will focus toward the image side, and the focal point with the optical axis will be on the image side. For example, at point R in FIG. 2, the area is a convex surface. On the contrary, if the light passes through the certain area, the light will diverge, and the focal point of the extension line and the optical axis is on the object side. For example, at point M in Figure 2, the area is a concave surface. Take the convex surface from the center point to the first conversion point, and the radially outward area from the first conversion point to the concave surface; as shown in Figure 2, the conversion point is the boundary point between the convex surface and the concave surface, so this can be defined The area and the area adjacent to the inner side of the area in the radial direction have different surface shapes based on the transition point. In addition, if the surface shape of the area near the optical axis can be judged according to the judgment method of ordinary knowledge in the field, the R value (refers to the radius of curvature of the paraxial, usually refers to the R on the lens data in the optical software). Value) is positive or negative to determine the unevenness. For the object side, when the R value is positive, it is judged as a convex surface, when the R value is negative, it is judged as a concave surface; for the image side, when the R value is positive, it is judged as a concave surface. When the value is negative, it is judged as a convex surface. The concave and convex judged by this method are the same as the light focus judgment method. If there is no conversion point on the lens surface, the area near the optical axis is defined as 0-50% of the effective radius, and the area near the circumference is defined as 50-100% of the effective radius.

The image side surface of the lens in Example 1 of FIG. 3 has only the first conversion point on the effective radius, the first area is the area near the optical axis, and the second area is the area near the circumference. The R value of the side surface of the lens is positive, so it is judged that the area near the optical axis has a concave surface; the surface shape of the area near the circumference is different from the area immediately inside the area in the radial direction. That is, the area near the circumference and the area near the optical axis have different surface shapes; the area near the circumference has a convex surface.

The object side surface of the lens in Example 2 of FIG. 4 has first and second transition points on the effective radius, the first area is the area near the optical axis, and the third area is the area near the circumference. The R value on the object side of the lens is positive, so it is judged that the area near the optical axis is a convex surface; the area between the first conversion point and the second conversion point (the second area) has a concave surface, and the circumference is attached The near area (the third area) has a convex surface.

The object side surface of the lens in Example 3 of Figure 5 has no transition point on the effective radius. At this time, the effective radius is 0%-50% as the area near the optical axis, and 50%-100% is the area near the circle. Since the R value in the area near the optical axis is positive, the side surface of the object has a convex surface in the area near the optical axis; and there is no transition point between the area near the circumference and the area near the optical axis, so the area near the circumference has a convex surface.

As shown in FIG. 6, the optical imaging lens 1 of the present invention, from the object side 2 where the object (not shown) is placed to the image side 3 of the image, along the optical axis 4, includes at least a first lens 10, The second lens 20, the third lens 30, the fourth lens 40, the fifth lens 50, the sixth lens 60, the filter 90 and the image plane 91. Here, the first lens 10 is defined as the object side 2 to the image side 3 number, the first lens has refractive power, the second lens 20 is the object side 2 to the image side 3 number, and the second lens has refractive power , The third lens 30 is a third lens with refractive power from 3 to the object side, and the fourth lens 40 is a third lens with refractive power from 3 to the object side. The five lens 50 is a lens with 3 to 2 on the image side and the second lens with refractive power, and the sixth lens 60 is a lens with 3 to 2 on the image side and the first lens with refractive power. Generally speaking, the first lens 10, the second lens 20, the fourth lens 40, the fifth lens 50, and the sixth lens 60 can be made of plastic or glass materials, but the present invention is not limited thereto. The third lens 30 is made of plastic material, which helps to reduce the weight of the optical imaging lens and reduce the manufacturing cost, and at the same time, it can achieve a good effect of cost invention.

In addition, the optical imaging lens 1 further includes an aperture stop 80, which is set at an appropriate position. In FIG. 6, the aperture 80 is set on the third lens 30 Between and the fourth lens 40. When the light (not shown) emitted by the object to be photographed (not shown) on the object side 2 enters the optical imaging lens 1 of the present invention, it will pass through the first lens 10, the second lens 20, and the third lens 30 After the aperture 80, the fourth lens 40, the fifth lens 50, the sixth lens 60 and the filter 90, they will be focused on the imaging surface 91 of the image side 3 to form a clear image. In each embodiment of the present invention, the selectively set filter 90 can also be a filter with various suitable functions, which can filter out light of a specific wavelength, and is provided on the image side 62 and the imaging surface of the sixth lens 60. Between 91.

Each lens in the optical imaging lens 1 of the present invention has an object side facing the object side 2 and an image side facing the image side 3 respectively. In addition, each lens in the optical imaging lens 1 of the present invention also has an area near the optical axis and an area near the circumference. For example, the first lens 10 has an object side surface 11 and an image side surface 12; the second lens 20 has an object side surface 21 and an image side surface 22; the third lens 30 has an object side surface 31 and an image side surface 32; and the fourth lens 40 has an object side surface 41 and an image side surface. The image side surface 42; the fifth lens 50 has an object side surface 51 and an image side surface 52; the sixth lens 60 has an object side surface 61 and an image side surface 62. Each object side and image side have an area near the optical axis and an area near the circumference.

Each lens in the optical imaging lens 1 of the present invention also has a central thickness T located on the optical axis 4 respectively. For example, the first lens 10 has a first lens thickness T1, the second lens 20 has a second lens thickness T2, the third lens 30 has a third lens thickness T3, the fourth lens 40 has a fourth lens thickness T4, and a fifth lens 50 It has a fifth lens thickness T5, and the sixth lens 60 has a sixth lens thickness T6. Therefore, in the optical imaging lens 1 on the optical axis 4, the total center thickness of all lenses with refractive power is called ALT.

In addition, in the optical imaging lens 1 of the present invention, each lens has a distance on the optical axis 4 respectively. For example, the distance from the image side 12 of the first lens 10 to the object side 21 of the second lens 20 on the optical axis 4 is G12, and the image side 22 of the second lens 20 to the object side 31 of the third lens 30 are on the optical axis 4. The distance on the upper side is G23, the distance on the optical axis 4 from the image side surface 32 of the third lens 30 to the object side surface 41 of the fourth lens 40 is G34, the image side surface 42 of the fourth lens 40 to the object side surface 51 of the fifth lens 50 The distance on the optical axis 4 is G45, and the distance from the image side surface 52 of the fifth lens 50 to the object side surface 61 of the sixth lens 60 on the optical axis 4 is G56. In addition, define AAG=G12+G23+G34+G45+G56.

In addition, the length from the object side 11 to the imaging surface 91 of the first lens 10 on the optical axis is TTL. The effective focal length of the optical imaging lens is EFL, and TL is the length of the object side 11 of the first lens 10 to the image side 62 of the sixth lens 60 on the optical axis 4.

In addition, redefine: f1 is the focal length of the first lens 10; f2 is the focal length of the second lens 20; f3 is the focal length of the third lens 30; f4 is the focal length of the fourth lens 40; f5 is the focal length of the fifth lens 50; f6 is the focal length of the sixth lens 60; n1 is the refractive index of the first lens 10; n2 is the refractive index of the second lens 20; n3 is the refractive index of the third lens 30; n4 is the refractive index of the fourth lens 40; n5 Is the refractive index of the fifth lens 50; n6 is the refractive index of the sixth lens 60; υ 1 is the Abbe number of the first lens 10, that is, the dispersion coefficient; υ 2 is the Abbe number of the second lens 20 Υ 3 is the Abbe coefficient of the third lens 30; υ 4 is the Abbe coefficient of the fourth lens 10; υ 5 is the Abbe coefficient of the fifth lens 50; and υ 6 is the Abbe coefficient of the sixth lens 60. G6F represents the gap width between the sixth lens 60 and the filter 90 on the optical axis 4, TF represents the thickness of the filter 90 on the optical axis 4, GFP represents the gap width between the filter 90 and the imaging surface 91 on the optical axis 4, and BFL is the image side 62 of the sixth lens 60 to the imaging surface 91. The distance on the optical axis 4, that is, BFL=G6F+TF+GFP.

The first embodiment

Please refer to FIG. 6, which illustrates a first embodiment of the optical imaging lens 1 of the present invention. Please refer to FIG. 7A for the longitudinal spherical aberration on the imaging surface 91 of the first embodiment, and refer to FIG. 7B for the astigmatic field aberration in the sagittal direction. Please refer to Fig. 7C for astigmatic aberration and Fig. 7D for distortion aberration. The Y-axis of each spherical aberration diagram in all the embodiments represents the field of view, and the highest point is 1.0. The Y-axis of each astigmatism diagram and distortion diagram in the first to twelfth embodiments represents the image height, and the system image height It is 2.084 mm.

The optical imaging lens system 1 of the first embodiment is mainly composed of six lenses with refractive power, a filter 90, an aperture 80, and an imaging surface 91. The aperture 80 is provided between the third lens 30 and the fourth lens 40. The filter 90 can prevent light of a specific wavelength from being projected onto the imaging surface and affecting the imaging quality.

The material of the first lens 10 is glass and has a negative refractive power. The object side surface 11 facing the object side 2 has a convex surface 13 located in the vicinity of the optical axis and a convex surface 14 located in the vicinity of the circumference, and the image side surface 12 facing the image side 3 has a concave surface 16 located in the vicinity of the optical axis and located near the circumference Area of the concave surface 17. Both the object side surface 11 and the image side surface 12 of the first lens are spherical surfaces.

The second lens 20 is made of plastic and has a negative refractive power. Towards the object side 2 The object side surface 21 has a convex surface 23 located in the vicinity of the optical axis and a convex surface 24 located in the vicinity of the circumference. The image side surface 22 facing the image side 3 has a concave surface 26 located in the vicinity of the optical axis and a concave surface located in the vicinity of the circumference. 27. Both the object side surface 21 and the image side surface 22 of the second lens 20 are aspherical surfaces.

The third lens 30 is made of plastic and has positive refractive power. The object side 31 facing the object side 2 has a concave portion 33 located near the optical axis and a concave portion 34 located near the circumference, and the image facing the image side 3 The side surface 32 has a convex surface 36 in a region near the optical axis and a convex surface 37 in the vicinity of the circumference. Both the object side surface 31 and the image side surface 32 of the third lens 30 are aspherical surfaces.

The fourth lens 40 is made of plastic and has positive refractive power. The object side 41 facing the object side 2 has a convex surface 43 located near the optical axis and a convex surface 44 located near the circumference, and the image facing the image side 3 The side surface 42 has a convex surface 46 located in the vicinity of the optical axis and a convex surface 47 located in the vicinity of the circumference. Both the object side surface 41 and the image side surface 42 of the fourth lens 40 are aspherical surfaces.

The fifth lens 50 is made of plastic and has negative refractive power. The object side 51 facing the object side 2 has a concave surface 53 located in the vicinity of the optical axis and a concave surface 54 located in the vicinity of the circumference. The side surface 52 has a concave surface 56 located in the vicinity of the optical axis and a concave surface 57 located in the vicinity of the circumference. In addition, both the object side surface 51 and the image side surface 52 of the fifth lens 50 are aspherical surfaces.

The sixth lens 60 is made of plastic and has positive refractive power. The object side 61 facing the object side 2 has a convex surface 63 located in the vicinity of the optical axis and a convex surface 64 located in the vicinity of the circumference, facing the image side surface of the image side 3 62 has an area near the optical axis The convex surface 66 of the domain and the convex surface 67 located in the area near the circumference. In addition, both the object side surface 61 and the image side surface 62 of the sixth lens 60 are aspherical surfaces. Also in this embodiment, the fifth lens 50 and the sixth lens 60 are filled with colloid or film, but it is not limited to this. The filter 90 is located between the image side 62 and the imaging surface 91 of the sixth lens 60, and the filter 90 also has an object side 92 facing the object side 2 and an image side 93 facing the image side 3.

In the optical imaging lens 1 of the present invention, from the first lens 10 to the sixth lens 60, the total object side surface 11/21/31/41/51/61 and the image side surface 12/22/32/42/52/62 Twelve curved surfaces. If it is aspherical, then these aspherical systems are defined by the following formula (1):

Among them: R represents the radius of curvature of the lens surface; Z represents the depth of the aspheric surface (the point on the aspheric surface from the optical axis of Y, the vertical distance between the tangent plane tangent to the vertex on the optical axis of the aspheric surface); Y represents the vertical distance between the point on the aspheric surface and the optical axis; K is the conic constant; a _i is the i-th order aspheric coefficient.

It should be noted that if it is a spherical surface, the conic coefficient K and the aspheric coefficient a _{i of} each order are both 0 and are shown in the table.

The optical data of the optical lens system of the first embodiment is shown in Fig. 30, the aspherical The surface data is shown in Figure 31. A virtual reference surface (not shown) with an infinite radius of curvature is provided between the filter 90 and the imaging surface 91. In the optical lens system of the following embodiments, the aperture value (f-number) of the overall optical lens system is Fno, the effective focal length is (EFL), and the Maximum Half Field of View (HFOV) is the overall optical lens system It is half of the maximum viewing angle (Field of View), and the units of the radius of curvature, thickness and focal length are all millimeters (mm). Among them, System Image Height (ImgH) = 2.084 mm; EFL = 1.131 mm; HFOV = 107.500 degrees; TTL = 11.265 mm; Fno = 2.400. In addition, the optical imaging lens design of the first embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, while at- At an ambient temperature of 20°C, the change in back focal length is -0.040mm, and at an ambient temperature of 80°C, the change in back focal length is 0.066mm.

Second embodiment

Please refer to FIG. 8, which illustrates a second embodiment of the optical imaging lens 1 of the present invention. Please note that starting from the second embodiment, in order to simplify and clearly express the drawings, only the different surface shapes of each lens from the first embodiment are specifically marked on the figure, and the remaining surface shapes are similar to those of the first embodiment. For example, concave or convex surfaces are not marked separately. Please refer to FIG. 9A for the longitudinal spherical aberration on the imaging plane 91 of the second embodiment, refer to FIG. 9B for the astigmatic aberration in the sagittal direction, refer to FIG. 9C for the astigmatic aberration in the tangential direction, and refer to FIG. 9D for the distortion aberration . The design of the second embodiment is similar to that of the first embodiment, except that the lens curvature radius, lens thickness, lens aspheric coefficient or back focal length and other related parameters are different.

The detailed optical data of the second embodiment is shown in FIG. 32, and the aspheric surface data is shown in FIG. 33. System image height = 2.786 mm; EFL = 1.370 mm; HFOV = 107.500 degrees; TTL = 11.136 mm; Fno = 2.400. In particular, the second embodiment is easier to manufacture than the first embodiment and therefore has a higher yield rate. In addition, the optical imaging lens design of the second embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm. At an ambient temperature of 20°C, the change in back focal length is -0.046mm, and at an ambient temperature of 80°C, the change in back focal length is 0.076mm.

The third embodiment

Please refer to FIG. 10, which illustrates a third embodiment of the optical imaging lens 1 of the present invention. Please refer to Fig. 11A for the longitudinal spherical aberration on the imaging surface 91 of the third embodiment, refer to Fig. 11B for the astigmatic aberration in the sagittal direction, refer to Fig. 11C for the astigmatic aberration in the tangential direction, and Fig. 11D for the distortion aberration . The design of the third embodiment is similar to that of the first embodiment, except for the relevant parameters such as the radius of curvature of the lens, the thickness of the lens, the aspheric coefficient of the lens, or the back focal length.

The detailed optical data of the third embodiment is shown in Figure 34, and the aspherical data is shown in Figure 35, where the system image height = 1.772 mm; EFL = 1.105 mm; HFOV = 96.750 degrees; TTL = 12.911 mm; Fno=2.600. In particular, the third embodiment is easier to manufacture than the first embodiment and therefore has a higher yield. In addition, the optical imaging lens design of the third embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, while at- At an ambient temperature of 20°C, the change in the back focal length is -0.041mm, at an ambient temperature of 80°C, the back focal length change value is 0.066mm.

Fourth embodiment

Please refer to FIG. 12, which illustrates a fourth embodiment of the optical imaging lens 1 of the present invention. Please refer to FIG. 13A for the longitudinal spherical aberration on the imaging surface 91 of the fourth embodiment, refer to FIG. 13B for the astigmatic aberration in the sagittal direction, refer to FIG. 13C for the astigmatic aberration in the tangential direction, and refer to FIG. 13D for the distortion aberration . The design of the fourth embodiment is similar to that of the first embodiment, except for related parameters such as lens curvature radius, lens thickness, lens aspheric coefficient or back focal length.

The detailed optical data of the fourth embodiment is shown in Figure 36, and the aspherical data is shown in Figure 37, where the system image height=1.636 mm; EFL=0.962 mm; HFOV=96.750 degrees; TTL=11.925 mm; Fno=2.400. In particular, the fourth embodiment is easier to manufacture than the first embodiment and therefore has a higher yield. In addition, the optical imaging lens design of the fourth embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, while at- At an ambient temperature of 20°C, the change in back focal length is -0.034mm, and at an ambient temperature of 80°C, the change in back focal length is 0.054mm.

Fifth embodiment

Please refer to FIG. 14, which illustrates a fifth embodiment of the optical imaging lens 1 of the present invention. Please refer to FIG. 15A for the longitudinal spherical aberration on the imaging surface 91 of the fifth embodiment, for the astigmatic aberration in the sagittal direction, refer to FIG. 15B, and for the astigmatic aberration in the tangential direction, refer to FIG. 15C, Please refer to Figure 15D for distortion aberration. The design of the fifth embodiment is similar to that of the first embodiment, except for the relevant parameters such as the radius of curvature of the lens, the thickness of the lens, the aspheric coefficient of the lens, or the back focal length.

The detailed optical data of the fifth embodiment is shown in Figure 38, and the aspherical data is shown in Figure 39, where the system image height = 3.450 mm; EFL = 1.973 mm; HFOV = 107.500 degrees; TTL = 13.074 mm; Fno=2.600. In particular, the fifth embodiment is easier to manufacture than the first embodiment, so the yield rate is higher. In addition, the optical imaging lens design of the fifth embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, while at- At an ambient temperature of 20°C, the change in back focal length is -0.063mm, and at an ambient temperature of 80°C, the change in back focal length is 0.098mm.

Sixth embodiment

Please refer to FIG. 16, which illustrates a sixth embodiment of the optical imaging lens 1 of the present invention. Please refer to FIG. 17A for the longitudinal spherical aberration on the imaging surface 91 of the sixth embodiment, refer to FIG. 17B for the astigmatic aberration in the sagittal direction, refer to FIG. 17C for the astigmatic aberration in the tangential direction, and refer to FIG. 17D for the distortion aberration . In the sixth embodiment, the object side 51 of the fifth lens 50 has a convex surface 53' in the vicinity of the optical axis, the material of the fourth lens 40 is glass, and the object side 41 and the image side 42 of the fourth lens 40 are spherical surfaces. . In addition, related parameters such as lens curvature radius, lens thickness, lens aspheric coefficient or back focal length are also different from those of the first embodiment.

In addition, from the sixth embodiment to the other practices described in the following paragraphs In this embodiment, in addition to the first lens 10 to the sixth lens 60 described above, a seventh lens 70 is further included, which is disposed between the second lens 20 and the third lens 30. The seventh lens 70 is made of plastic and has positive refractive power. The object side surface 71 facing the object side 2 has a concave surface 73 located in the vicinity of the optical axis and a concave surface 74 located in the vicinity of the circumference. The image side surface 72 facing the image side 3 has a convex surface 76 located in the vicinity of the optical axis and located near the circumference. Area of the convex surface 77. Both the object side surface 71 and the image side surface 72 of the seventh lens 70 are aspherical surfaces.

Similarly, the object side surface 71 and the image side surface 22 of the seventh lens 70 are defined by the following formula:

Among them: R represents the radius of curvature of the lens surface; Z represents the depth of the aspheric surface (the point on the aspheric surface from the optical axis of Y, the vertical distance between the tangent plane tangent to the vertex on the optical axis of the aspheric surface); Y represents the vertical distance between the point on the aspheric surface and the optical axis; K is the conic constant; a _i is the i-th order aspheric coefficient.

For the sixth embodiment and subsequent embodiments, T7 is the central thickness of the seventh lens on the optical axis 4. In the optical imaging lens 1 on the optical axis 4, the sum of the center thicknesses of all lenses with refractive power is called ALT.

In addition, redefine: f7 is the focal length of the seventh lens 70; n7 is the seventh lens The refractive index of the mirror 70; υ 7 is the Abbe number of the seventh lens 70. The distance from the image side surface 22 of the second lens 20 to the object side surface 71 of the seventh lens 70 on the optical axis 4 is G27, and the distance from the image side surface 72 of the seventh lens 70 to the object side surface 31 of the third lens 30 on the optical axis 4 The distance is G73.

The detailed optical data of the sixth embodiment is shown in Figure 40, and the aspherical data is shown in Figure 41, where the system image height = 1.667 mm; EFL = 0.946 mm; HFOV = 103.000 degrees; TTL = 19.418 mm; Fno=2.400. In particular, the sixth embodiment is easier to manufacture than the first embodiment and therefore has a higher yield. In addition, the optical imaging lens design of the sixth embodiment has a good back focal length variation performance. The normal temperature is set at 20°C as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, while at- At an ambient temperature of 20°C, the change in the back focal length is -0.001mm, and at an ambient temperature of 80°C, the change in the back focal length is 0.002mm.

Seventh embodiment

Please refer to FIG. 18, which illustrates a seventh embodiment of the optical imaging lens 1 of the present invention. Please refer to Fig. 19A for the longitudinal spherical aberration on the imaging plane 91 of the seventh embodiment, Fig. 19B for the astigmatic aberration in the sagittal direction, Fig. 19C for the astigmatic aberration in the tangential direction, and Fig. 19D for the distortion aberration . The design of the seventh embodiment is similar to that of the sixth embodiment, except for related parameters such as lens curvature radius, lens thickness, lens aspheric coefficient or back focal length.

The detailed optical data of the seventh embodiment is shown in Figure 42, and the aspherical data is shown in Figure 43, where the system image height = 3.264 mm; EFL = 1.853 mm; HFOV = 103.000 degrees; TTL=21.235 mm; Fno=2.600. In particular, the seventh embodiment is easier to manufacture than the first embodiment and therefore has a higher yield rate. In addition, the optical imaging lens design of the seventh embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, while at- At an ambient temperature of 20°C, the change in back focal length is -0.008mm, and at an ambient temperature of 80°C, the change in back focal length is 0.013mm.

Eighth embodiment

Please refer to FIG. 20, which illustrates an eighth embodiment of the optical imaging lens 1 of the present invention. Please refer to FIG. 21A for the longitudinal spherical aberration on the imaging plane 91 of the eighth embodiment, for the astigmatic aberration in the sagittal direction, please refer to FIG. 21B, for the astigmatic aberration in the tangential direction, please refer to FIG. 21C, and for the distortion aberration, please refer to FIG. 21D . The design of the eighth embodiment is similar to that of the sixth embodiment, except for related parameters such as lens curvature radius, lens thickness, lens aspheric coefficient, or back focal length.

The detailed optical data of the eighth embodiment is shown in Fig. 44, and the aspheric data is shown in Fig. 45, where the system image height=3.383 mm; EFL=1.769 mm; HFOV=103.000 degrees; TTL=22.634 mm; Fno=2.600. In particular, the eighth embodiment is easier to manufacture than the first embodiment and therefore has a higher yield rate. In addition, the optical imaging lens design of the eighth embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, while at- At an ambient temperature of 20°C, the change in the back focal length is 0.012mm, and at an ambient temperature of 80°C, the change in the back focal length is -0.016mm.

Ninth embodiment

Please refer to FIG. 22, which illustrates a ninth embodiment of the optical imaging lens 1 of the present invention. Please refer to FIG. 23A for the longitudinal spherical aberration on the imaging plane 91 of the ninth embodiment, refer to FIG. 23B for the astigmatic aberration in the sagittal direction, refer to FIG. 23C for the astigmatic aberration in the tangential direction, and refer to FIG. 23D for the distortion aberration . The design of the ninth embodiment is similar to that of the sixth embodiment, except for related parameters such as lens curvature radius, lens thickness, lens aspheric coefficient, or back focal length.

The detailed optical data of the ninth embodiment is shown in Figure 46, and the aspherical data is shown in Figure 47, where the system image height = 2.820 mm; EFL = 1.129 mm; HFOV = 103.000 degrees; TTL = 15.052 mm; Fno=2.600. In particular, the ninth embodiment is easier to manufacture than the first embodiment and therefore has a higher yield rate. In addition, the optical imaging lens design of the ninth embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, while at- At an ambient temperature of 20°C, the back focal length change value is 0.003mm, and at an ambient temperature of 80°C, the back focal length change value is -0.003mm.

Tenth embodiment

Please refer to FIG. 24, which illustrates a tenth embodiment of the optical imaging lens 1 of the present invention. Please refer to FIG. 25A for the longitudinal spherical aberration on the imaging plane 91 of the tenth embodiment, for the astigmatic aberration in the sagittal direction, please refer to FIG. 25B, the astigmatic aberration in the tangential direction, please refer to FIG. 25C, and the distortion aberration, please refer to FIG. 25D . The design of the tenth embodiment is similar to that of the sixth embodiment, Only relevant parameters such as lens curvature radius, lens thickness, lens aspheric coefficient or back focal length are different.

The detailed optical data of the tenth embodiment is shown in Figure 48, and the aspherical data is shown in Figure 49, where the system image height = 2.030 mm; EFL = 1.390 mm; HFOV = 103.000 degrees; TTL = 18.076 mm; Fno=2.400. In particular, the tenth embodiment is easier to manufacture than the first embodiment and therefore has a higher yield rate. In addition, the optical imaging lens design of the tenth embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, while at- At an ambient temperature of 20°C, the back focal length change value is 0.003mm, and at an ambient temperature of 80°C, the back focal length change value is -0.005mm.

Eleventh embodiment

Please refer to FIG. 26, which illustrates an eleventh embodiment of the optical imaging lens 1 of the present invention. Please refer to Figure 27A for the longitudinal spherical aberration on the imaging plane 91 of the eleventh embodiment, refer to Figure 27B for the astigmatic aberration in the sagittal direction, refer to Figure 27C for the astigmatic aberration in the tangential direction, and refer to Figure 27C for the distortion aberration, refer to the figure. 27D. The design of the eleventh embodiment is similar to that of the sixth embodiment, except for related parameters such as lens curvature radius, lens thickness, lens aspheric coefficient, or back focal length.

The detailed optical data of the eleventh embodiment is shown in Figure 50, and the aspherical data is shown in Figure 51, where the system image height = 2.146 mm; EFL = 1.459 mm; HFOV = 103.000 degrees; TTL = 14.434 mm ; Fno=2.500. In particular, the eleventh embodiment is easier to manufacture than the first embodiment and therefore has a higher yield rate. In addition, the eleventh real The optical imaging lens design of the embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm, and in an environment of -20°C At temperature, the back focal length change value is 0.012mm, and at an ambient temperature of 80°C, the back focal length change value is -0.016mm.

Twelfth embodiment

Please refer to FIG. 28, which illustrates a twelfth embodiment of the optical imaging lens 1 of the present invention. Please refer to Figure 29A for the longitudinal spherical aberration on the imaging plane 91 of the twelfth embodiment, refer to Figure 29B for the astigmatic aberration in the sagittal direction, refer to Figure 29C for the astigmatic aberration in the tangential direction, and refer to Figure 29C for the distortion aberration, refer to the figure 29D. The design of the twelfth embodiment is similar to that of the sixth embodiment, except for the relevant parameters such as the radius of curvature of the lens, the thickness of the lens, the aspheric coefficient of the lens, or the back focal length.

The detailed optical data of the twelfth embodiment is shown in Figure 52, and the aspherical data is shown in Figure 53, where the system image height=1.675 mm; EFL=0.975 mm; HFOV=103.000 degrees; TTL=14.015 mm ; Fno=2.500. In particular, the twelfth embodiment is easier to manufacture than the first embodiment and therefore has a higher yield rate. In addition, the optical imaging lens design of the twelfth embodiment has a good performance of back focal length variation. A normal temperature of 20°C is set as a reference, and the back focal length variation value (back focal length variation) at this temperature is 0.000mm. At an ambient temperature of -20°C, the change in back focal length is -0.008mm, and at an ambient temperature of 80°C, the change in back focal length is 0.012mm.

In addition, the important parameters of each embodiment are sorted out in Figure 54, Figure 55, Figure 56 and Figure 57.

The applicant found that the lens configuration in this case can effectively improve the viewing angle through the mutual matching of the following designs, while having a low back focus change under different ambient temperatures, shortening the length of the lens, enhancing the sharpness of the object, and achieving good imaging quality.

1. The area where the object side of the second lens is located near the optical axis is a convex surface, and the area where the object side of the second lens is located near the circumference is a convex surface, which can help collect imaging light.

2. The area on the object side of the third lens near the optical axis is a concave surface, which is beneficial to correct the aberrations generated by the first lens and the second lens.

3. The third lens is made of plastic, which helps to lighten the optical imaging lens and reduce the manufacturing cost.

4. The object side of the fourth lens has a convex surface near the optical axis, which can help the imaging light converge.

5. The area near the optical axis of the fifth lens image side is a concave surface, the area near the image side circumference of the fifth lens is a concave surface, the area near the optical axis of the sixth lens image side is a convex surface, and the area near the image side circumference of the sixth lens is a concave surface. The convex surface can achieve the effect of correcting the overall aberration.

6. Optionally match the second lens with negative refractive power, which can correct the aberrations produced by the first lens.

7. Optionally match the third lens with positive refractive power, or the image side surface of the third lens is convex in the area near the circumference, which can correct the aberrations produced by the second lens.

8. Optionally match the fifth lens with a concave surface in the area near the circumference of the object side, which helps to adjust the aberrations produced by the first lens to the fourth lens.

In addition, the numerical control of the following parameters can assist designers in designing optical lens sets that have good optical performance, effectively shorten the overall length, and are technically feasible. Therefore, the optical imaging system can achieve a better configuration under the numerical limit of the following conditional formula:

(a) In order to shorten the length of the lens system, the present invention appropriately shortens the lens thickness and the air gap between the lenses, but considering the ease of the lens assembly process and the need to take into account the imaging quality, the lens thickness and the air gap between the lenses They need to be adjusted to each other, or the ratio of specific optical parameters in a specific lens group value combination. Therefore, the optical imaging system can achieve a better configuration under the numerical limit of the following conditional formula.

2.300，較佳的範圍為1.400

AAG/G23

2.300；AAG/T6

2.500，較佳的範圍為1.400

AAG/T6

2.500；ALT/G23

4.700，較佳的範圍為1.900

ALT/G23

4.700；ALT/T6

4.300，較佳的範圍為2.600

ALT/T6

4.300；G12/T1

2.100，較佳的範圍為0.800

G12/T1

2.100；G12/(T2+G34+G45)

1.400，較佳的範圍為0.500

G12/(T2+G34+G45)

1.400；BFL/G23

1.600，較佳的範圍為0.300

BFL/G23

1.600；BFL/T6

1.600，較佳的範圍為0.300

BFL/T6

1.600；(T1+T3)/T4

2.700，較佳的範圍為1.100

(T1+T3)/T4

2.700；AAG/(G34+G45+T5+G56)

5.800，較佳的範圍為 2.000

AAG/(G34+G45+T5+G56)

5.800；(T1+G12)/T4

2.200，較佳的範圍為1.200

(T1+G12)/T4

2.200。 AAG/G23

2.300, the preferred range is 1.400

AAG/G23

2.300; AAG/T6

2.500, the preferred range is 1.400

AAG/T6

2.500; ALT/G23

4.700, the preferred range is 1.900

ALT/G23

4.700; ALT/T6

4.300, the preferred range is 2.600

ALT/T6

4.300; G12/T1

2.100, the preferred range is 0.800

G12/T1

2.100; G12/(T2+G34+G45)

1.400, the preferred range is 0.500

G12/(T2+G34+G45)

1.400; BFL/G23

1.600, the preferred range is 0.300

BFL/G23

1.600; BFL/T6

1.600, the preferred range is 0.300

BFL/T6

1.600; (T1+T3)/T4

2.700, the preferred range is 1.100

(T1+T3)/T4

2.700; AAG/(G34+G45+T5+G56)

5.800, the preferred range is 2.000

AAG/(G34+G45+T5+G56)

5.800; (T1+G12)/T4

2.200, the preferred range is 1.200

(T1+G12)/T4

2.200.

(b) If the following conditional expressions are satisfied, the EFL and other optical parameters can maintain a ratio, which can help expand the viewing angle during the thinning of the optical system.

4.800，較佳的範圍為0.300

(G12+T3+G34)/EFL

4.800；(G34+G45+T5+G56)/EFL

2.000，較佳的範圍為0.600

(G34+G45+T5+G56)/EFL

2.000；T3/EFL

1.400，較佳的範圍為0.600

T3/EFL

1.400；(T2+G34+G45)/EFL

1.700，較佳的範圍為0.500

(T2+G34+G45)/EFL

1.700。 (G12+T3+G34)/EFL

4.800, the preferred range is 0.300

(G12+T3+G34)/EFL

4.800; (G34+G45+T5+G56)/EFL

2.000, the preferred range is 0.600

(G34+G45+T5+G56)/EFL

2.000; T3/EFL

1.400, the preferred range is 0.600

T3/EFL

1.400; (T2+G34+G45)/EFL

1.700, the preferred range is 0.500

(T2+G34+G45)/EFL

1.700.

c) Keep the ratio of the optical element parameters to the lens length at an appropriate value to avoid too small a parameter that is not conducive to manufacturing, or avoid too large a parameter to make the lens length too long.

6.500，較佳的範圍為2.500

TTL/(T3+G34+G45+T5+G56)

6.500；TL/(T2+G34+G45)

12.100，較佳的範圍為5.700

TL/(T2+G34+G45)

12.100；TL/(T4+BFL)

8.400，較佳的範圍為2.400

TL/(T4+BFL)

8.400。 TTL/(T3+G34+G45+T5+G56)

6.500, the preferred range is 2.500

TTL/(T3+G34+G45+T5+G56)

6.500; TL/(T2+G34+G45)

12.100, the preferred range is 5.700

TL/(T2+G34+G45)

12.100; TL/(T4+BFL)

8.400, the preferred range is 2.400

TL/(T4+BFL)

8.400.

Next, in order to explain the composition of the optical imaging lens of the embodiment of the present invention The relationship between the image circle, its inscribed rectangle and the rear image sensor. Please refer to FIGS. 58A and 58B. Generally speaking, when the imaging light from the object side 2 is projected to the image side 3 through the optical imaging lens 1, ideally it will be focused by the optical imaging lens 1 and located on the imaging surface 3 of the image side A circular image is formed on 91. This circular image is called an "imaging circle" IC (Imaging Circle). The imaging circle IC is the imaging result obtained by the entire optical imaging lens 1. In addition, a sensing surface (not shown) of the image sensor at the rear end of the optical imaging lens 1 is configured to overlap the imaging surface 91 so that the image sensor at the rear end of the optical imaging lens 1 senses images. The imaging circle IC has an inscribed rectangle RT inscribed in the imaging circle IC, and the inscribed rectangle RT can have different aspect ratios according to different positions on the imaging circle IC. The inscribed rectangle RT has two opposite long sides LE and two opposite short sides SE, and the aspect ratio is defined as the ratio of the length of the long side LE to the short side SE. In the embodiment of the present invention, the aspect ratio of the inscribed rectangle RT is 4:3 (as shown in FIG. 58A) and 16:9 (as shown in FIG. 58B) as examples. Generally speaking, the shape of the image sensor is roughly rectangular, and the aspect ratio of the commonly used image sensor is 4:3 or 16:9, and its size can be matched as shown in Figure 58A and Figure 58B. Connect the rectangle.

Please refer to Figure 58A and Figure 58B again. First, the Maximum Hald Field of View (HFOV) is the half of the maximum angle of the object image that the optical imaging lens 1 can receive on the object side 2, and the object side 2 The radius of the image of the object imaged by the optical imaging lens 1 on the imaging surface 91 of the image side 3 is called the field of view (Field), in which the 1x field of view is the 1x maximum image height, which is also called the system image height. The size of the rear image sensor matches the inscribed rectangle RT as shown in Fig. 58A and Fig. 58B. The optical imaging lens 1 actually corresponds to the diagonal of the inscribed rectangle RT in the maximum angle of view The image received in the diagonal direction of DL will correspond to the image on the diagonal line DL of the inscribed rectangle RT, and the image received by the optical imaging lens 1 in the horizontal direction in the viewing angle will correspond to the image of the inscribed rectangle RT. On the reference line HL. Therefore, the angular range of the Diagonal FOV corresponding to the Diagonal field of the image sensor is captured by the diagonal DL formed by the two diagonals of the inscribed rectangle RT. The range of the receiving angle of the object on the object side 2. On the other hand, the angle range of the horizontal field of view (Horizontal FOV) corresponding to the horizontal field of the image sensor is the light receiving angle range of the object on the object side 2 taken by the reference line HL. The reference line HL is defined as passing through the center C of the imaging circle IC and parallel to the long side LE of the inscribed rectangle RT. The reference line HL extends from one short side SE of the rectangle RT to the other short side SE of the rectangle RT, and the length of the reference line HL is equal to the length of any long side LE of the rectangle RT.

Thirteenth embodiment

Please refer to FIG. 59, which illustrates a thirteenth embodiment of the optical imaging lens 1 of the present invention. Please refer to Figure 60A for the longitudinal spherical aberration on the imaging plane 91 of the thirteenth embodiment, refer to Figure 60B for the astigmatic aberration in the sagittal direction, refer to Figure 60C for the astigmatic aberration in the tangential direction, and refer to Figure 60C for the astigmatic aberration in the tangential direction, and refer to Figure 60C for the distortion aberration, refer to Figure 60D. In the thirteenth embodiment to the twenty-first embodiment, the Y axis of the astigmatism diagrams and the distortion diagrams represents the half angle of view, and the half angle of view is 104.50 degrees.

The optical imaging lens system 1 of the thirteenth embodiment is mainly composed of six lenses 10-60 with refractive power, a filter 90, an aperture 80, and an imaging surface 91. The aperture 80 is provided between the third lens 30 and the fourth lens 40. The filter 90 can prevent light of a specific wavelength from being projected onto the imaging surface 91 and affecting the imaging quality.

The first lens 10 is the first lens having refractive power counted from the object side 2 to the image side 3. The material of the first lens 10 is glass and has a negative refractive power. The object side surface 11 facing the object side 2 has a convex surface 13 located in the vicinity of the optical axis and a convex surface 14 located in the vicinity of the circumference, and the image side surface 12 facing the image side 3 has a concave surface 16 located in the vicinity of the optical axis and located near the circumference Area of the concave surface 17. Both the object side surface 11 and the image side surface 12 of the first lens are spherical surfaces.

The second lens 20 is the second lens having refractive power counted from the object side 2 to the image side 3. The second lens 20 is made of plastic and has a negative refractive power. The object side surface 21 facing the object side 2 has a convex surface 23 located in the vicinity of the optical axis and a convex surface 24 located in the vicinity of the circumference, and the image side surface 22 facing the image side 3 has a concave surface 26 located in the vicinity of the optical axis and located near the circumference. Area of the concave 27. Both the object side surface 21 and the image side surface 22 of the second lens 20 are aspherical surfaces.

The third lens 30 is the third lens having refractive power counted from the object side 2 to the image side 3. The third lens 30 is made of plastic and has positive refractive power. The object side 31 facing the object side 2 has a concave portion 33 located near the optical axis and a concave portion 34 located near the circumference, and the image facing the image side 3 The side surface 32 has a convex surface 36 in a region near the optical axis and a convex surface 37 in the vicinity of the circumference. Both the object side surface 31 and the image side surface 32 of the third lens 30 are aspherical surfaces.

The aperture 80 is disposed between the third lens 30 and the fourth lens 40.

The fourth lens 40 is the first lens having refractive power three times from the aperture 80 to the image side. The fourth lens 40 is made of plastic and has positive refractive power. The object side 41 facing the object side 2 has a convex surface 43 located in the vicinity of the optical axis and a peripheral surface. The convex surface 44 in the near area, and the image side surface 42 facing the image side 3 has a convex surface 46 in the vicinity of the optical axis and a convex surface 47 in the vicinity of the circumference. Both the object side surface 41 and the image side surface 42 of the fourth lens 40 are aspherical surfaces.

The fifth lens 50 is the second lens having refractive power three times from the aperture 80 to the image side. The fifth lens 50 is made of plastic and has negative refractive power. The object side 51 facing the object side 2 has a concave surface 53 located in the vicinity of the optical axis and a concave surface 54 located in the vicinity of the circumference. The side surface 52 has a concave surface 56 located in the vicinity of the optical axis and a concave surface 57 located in the vicinity of the circumference. In addition, both the object side surface 51 and the image side surface 52 of the fifth lens 50 are aspherical surfaces.

The sixth lens 60 is the third lens having refractive power three times from the aperture 80 to the image side. The sixth lens 60 is made of plastic and has positive refractive power. The object side 61 facing the object side 2 has a convex surface 63 located in the vicinity of the optical axis and a convex surface 64 located in the vicinity of the circumference, facing the image side surface of the image side 3 62 has a convex surface 66 located in an area near the optical axis and a convex surface 67 located in an area near the circumference. In addition, both the object side surface 61 and the image side surface 62 of the sixth lens 60 are aspherical surfaces. Also in this embodiment, the fifth lens 50 and the sixth lens 60 are filled with a colloid, a film, or a glued material, but it is not limited to this. The filter 90 is located between the image side surface 62 and the image surface 91 of the sixth lens 60.

In the optical imaging lens 1 of the present invention, from the first lens 10 to the sixth lens 60, the total object side surface 11/21/31/41/51/61 and the image side surface 12/22/32/42/52/62 The twelve curved surfaces can be defined by the above formula (1). If the curved surface is a spherical surface, the conic coefficient K and all aspheric surface coefficients a _i are all 0, and the corresponding data is omitted and not shown.

The optical data of the optical lens system of the thirteenth embodiment is shown in FIG. 77, and the aspheric surface data is shown in FIG. 78. System image height = 2.240 mm; EFL = 1.000 mm; HFOV = 104.500 degrees; TTL = 11.869 mm; Fno = 2.060.

With reference to FIGS. 60A to 60D, the diagram in FIG. 60A illustrates the longitudinal spherical aberration of the thirteenth embodiment, and the diagrams in FIGS. 60B and 60C illustrate the thirteenth embodiment when the wavelengths are 470nm, 555nm, and 650nm, respectively. When the field curvature aberration in the sagittal direction and the field curvature aberration in the tangential direction are on the imaging surface 91, the diagram in FIG. 60D illustrates that when the wavelengths are 470nm, 555nm, and 650nm, the Distortion aberration on the surface. In the longitudinal spherical aberration diagram of the thirteenth embodiment, in Figure 60A, the curves formed by each wavelength are very close and approach the middle, indicating that off-axis rays of different heights of each wavelength are concentrated near the imaging point. It can be seen from the skew amplitude of the curve of one wavelength that the deviation of the imaging point of off-axis rays of different heights is controlled within the range of ±0.025 mm. Therefore, the thirteenth embodiment does significantly improve the spherical aberration of the same wavelength. In addition, The distances between the three representative wavelengths are also quite close to each other, and the imaging positions of the different wavelengths of light have been quite concentrated, so the chromatic aberration has also been significantly improved.

In the two field curvature aberration diagrams in Figure 60B and Figure 60C, the focal length variation of the three representative wavelengths within the entire field of view falls within ±0.075 mm, indicating that the optical system of the thirteenth embodiment can be effective Eliminate aberrations. The distortion aberration diagram in FIG. 60D shows that the distortion aberration of the thirteenth embodiment is maintained within the range of ±100%, indicating that the distortion aberration of the thirteenth embodiment has met the imaging quality requirements of the optical system. according to This shows that compared with the existing optical lens, the thirteenth embodiment can still provide good imaging quality under the condition that the system length has been shortened to about 11.869 mm.

Fourteenth embodiment

Please refer to FIG. 61, which illustrates a fourteenth embodiment of the optical imaging lens 1 of the present invention. Please refer to Figure 62A for the longitudinal spherical aberration on the imaging plane 91 of the fourteenth embodiment, refer to Figure 62B for the astigmatic aberration in the sagittal direction, refer to Figure 62C for the astigmatic aberration in the tangential direction, and refer to Figure 62C for the astigmatic aberration in the tangential direction, and refer to Figure 62C for the distortion aberration, refer to Figure 62D. The optical imaging lens 1 of the fourteenth embodiment is roughly similar to the thirteenth embodiment, and the differences between the two are as follows: the various optical data, aspheric coefficients, and the parameters between these lenses 10-60 are more or less slightly different. In addition, the object side surface 41 of the fourth lens 40 has a concave surface 43' located in the vicinity of the optical axis. It should be noted here that, in order to clearly show the drawing, the reference numerals of the area near the optical axis and the area near the circumference that are similar to those in the thirteenth embodiment are omitted in FIG. 61.

The detailed optical data of the fourteenth embodiment is shown in Figure 79, and the aspherical data is shown in Figure 80, where the system image height = 2.240 mm; EFL = 0.990 mm; HFOV = 117.000 degrees; TTL = 12.994 mm ; Fno=2.060.

In FIG. 62A of the longitudinal spherical aberration diagram of the fourteenth embodiment, the deviation of the imaging point of off-axis rays of different heights is controlled within the range of ±0.025 mm. In the two field curvature aberration diagrams in FIG. 62B and FIG. 62C, the focal length variation of the three representative wavelengths within the entire field of view falls within ±0.1 mm. The distortion aberration diagram in FIG. 62D shows that the distortion aberration of the second embodiment is maintained within the range of ±100%. Accordingly, compared with the thirteenth embodiment, the fourteenth embodiment can still provide good image quality even when the system length has been shortened to about 12.944 mm.

From the above description, it can be known that the half angle of view of the fourteenth embodiment is greater than that of the thirteenth embodiment.

Fifteenth embodiment

Please refer to FIG. 63, which illustrates a fifteenth embodiment of the optical imaging lens 1 of the present invention. Please refer to Figure 64A for the longitudinal spherical aberration on the imaging plane 91 of the fifteenth embodiment, refer to Figure 64B for the astigmatic aberration in the sagittal direction, refer to Figure 64C for the astigmatic aberration in the tangential direction, and refer to Figure 64C for the astigmatic aberration in the tangential direction, and refer to Figure 64C for the distortion aberration, refer to Figure 64D. The optical imaging lens 1 of the fifteenth embodiment is roughly similar to the thirteenth embodiment, and the differences between the two are as follows: the optical data, aspheric coefficients, and the parameters between these lenses 10-60 are more or less slightly different. In addition, the object side surface 41 of the fourth lens 40 has a concave surface 43' located in the vicinity of the optical axis. It should be noted here that, in order to clearly show the drawing, the reference numerals of the area near the optical axis and the area near the circumference, which are similar to those in the thirteenth embodiment, are omitted in FIG. 63.

The detailed optical data of the fifteenth embodiment is shown in Figure 81, and the aspherical data is shown in Figure 82, where the system image height=2.058 mm; EFL=0.973 mm; HFOV=102.500 degrees; TTL=12.485 mm ; Fno=2.060.

In the longitudinal spherical aberration diagram of the fifteenth embodiment in Fig. 64A, the deviation of the imaging point of off-axis rays of different heights is controlled within the range of ±0.04 mm. In the two field curvature aberration diagrams in Fig. 64B and Fig. 64C, the focal length variation of the three representative wavelengths within the entire field of view falls within ±0.1 mm. The distortion aberration diagram in FIG. 64D shows that the distortion aberration of the second embodiment is maintained within the range of ±100%. Accordingly, compared with the thirteenth embodiment, the fifteenth embodiment can still provide good image quality even when the system length has been shortened to about 12.485 mm.

From the above description, it can be known that the fifteenth embodiment is easier to manufacture than the thirteenth embodiment and therefore has a higher yield.

Sixteenth embodiment

Please refer to FIG. 65, which illustrates a sixteenth embodiment of the optical imaging lens 1 of the present invention. Please refer to Figure 66A for the longitudinal spherical aberration on the imaging plane 91 of the sixteenth embodiment, refer to Figure 66B for the astigmatic aberration in the sagittal direction, refer to Figure 66C for the astigmatic aberration in the tangential direction, and refer to Figure 66C for the astigmatic aberration in the tangential direction, and refer to Figure 66C for the distortion aberration, refer to Figure 66D. The optical imaging lens 1 of the sixteenth embodiment is roughly similar to the thirteenth embodiment, and the differences between the two are as follows: the optical data, aspheric coefficients, and the parameters between these lenses 10-60 are more or less slightly different. In addition, the object side surface 41 of the fourth lens 40 has a concave surface 43' located in the vicinity of the optical axis. It should be noted here that, in order to clearly show the drawing, the reference numerals of the area near the optical axis and the area near the circumference, which are similar to those in the thirteenth embodiment, are omitted in FIG. 65.

The detailed optical data of the sixteenth embodiment is shown in Fig. 83, and the aspheric data is shown in Fig. 84, where the system image height=2.056 mm; EFL=0.953 mm; HFOV=116.000 degrees; TTL=13.100 mm ; Fno=2.060.

In FIG. 66A of the longitudinal spherical aberration diagram of the sixteenth embodiment, the deviation of the imaging point of off-axis rays of different heights is controlled within the range of ±0.02 mm. In the two field curvature aberration diagrams in Fig. 66B and Fig. 66C, the focal length variation of the three representative wavelengths within the entire field of view falls within ±0.075 mm. The distortion aberration diagram in FIG. 66D shows that the distortion aberration of the second embodiment is maintained within the range of ±100%. This shows that compared with the thirteenth embodiment, the sixteenth embodiment can still provide good imaging quality under the condition that the system length has been shortened to about 13.100 mm.

From the above description, it can be known that the half viewing angle of the sixteenth embodiment is greater than that of the thirteenth embodiment. The longitudinal spherical aberration of the sixteenth embodiment is smaller than that of the thirteenth embodiment.

Seventeenth embodiment

Please refer to FIG. 67, which illustrates a seventeenth embodiment of the optical imaging lens 1 of the present invention. Please refer to Figure 68A for the longitudinal spherical aberration on the imaging plane 91 of the seventeenth embodiment, refer to Figure 68B for the astigmatic aberration in the sagittal direction, refer to Figure 68C for the astigmatic aberration in the tangential direction, and refer to Figure 68C for the distortion aberration, refer to Figure 68D. The optical imaging lens 1 of the seventeenth embodiment is roughly similar to the thirteenth embodiment, and the differences between the two are as follows: the optical data, aspheric coefficients, and the parameters between these lenses 10-60 are more or less slightly different. In addition, the refractive power of the fifth lens 50 is positive. The refractive power of the sixth lens 60 is negative. The object side 51 of the fifth lens 50 has a convex surface 53' located in the vicinity of the optical axis and a convex surface 54' located in the vicinity of the circumference. The image side surface 52 of the fifth lens 50 has a convex surface 56' located in the vicinity of the optical axis and a convex surface 57' located in the vicinity of the circumference. The object side surface 61 of the sixth lens 60 has a concave surface 63' located in the vicinity of the optical axis and a concave surface 64' located in the vicinity of the circumference. Both the object side surface 51 and the image side surface 52 of the fifth lens 50 are spherical surfaces. Both the object side surface 61 and the image side surface 62 of the sixth lens 60 are spherical surfaces. It should be noted here that, in order to clearly show the drawing, the reference numerals of the area near the optical axis and the area near the circumference that are similar to those in the thirteenth embodiment are omitted in FIG. 67.

The detailed optical data of the seventeenth embodiment is shown in Figure 85, and the aspherical data is shown in Figure 86, where the system image height = 2.240 mm; EFL = 1.191 mm; HFOV=104.500 degrees; TTL=14.066 mm; Fno=2.200.

In the longitudinal spherical aberration diagram of the seventeenth embodiment in Fig. 68A, the deviation of the imaging point of off-axis rays of different heights is controlled within the range of ±0.015 mm. In the two field curvature aberration diagrams in FIG. 68B and FIG. 68C, the focal length variation of the three representative wavelengths within the entire field of view falls within ±0.25 mm. The distortion aberration diagram in FIG. 68D shows that the distortion aberration of the seventeenth example is maintained within the range of ±100%. This shows that compared with the thirteenth embodiment, the seventeenth embodiment can still provide good imaging quality under the condition that the system length has been shortened to about 14.066 mm.

From the above description, it can be known that the seventeenth embodiment is easier to manufacture than the thirteenth embodiment and therefore has a higher yield.

Eighteenth embodiment

Please refer to FIG. 69, which illustrates an eighteenth embodiment of the optical imaging lens 1 of the present invention. Please refer to Figure 70A for the longitudinal spherical aberration on the imaging plane 91 of the eighteenth embodiment, refer to Figure 70B for the astigmatic aberration in the sagittal direction, refer to Figure 70C for the astigmatic aberration in the tangential direction, and refer to Figure 70C for the astigmatic aberration in the tangential direction, and refer to Figure 70C for the distortion aberration, refer to Figure 70D. The optical imaging lens 1 of the eighteenth embodiment is roughly similar to the thirteenth embodiment, and the differences between the two are as follows: the optical data, aspheric coefficients, and the parameters between these lenses 10-60 are more or less slightly different. In addition, the material of the second lens 20 is glass. The refractive power of the fifth lens 50 is positive. The refractive power of the sixth lens 60 is negative. The object side 51 of the fifth lens 50 has a convex surface 53' located in the vicinity of the optical axis and a convex surface 54' located in the vicinity of the circumference. The image side surface 52 of the fifth lens 50 has a convex surface 56' located in the vicinity of the optical axis and a convex surface 57' located in the vicinity of the circumference. The sixth lens 60 has 61 on the object side There are a concave portion 63' in the area near the optical axis and a concave portion 64' in the area near the circumference. The image side surface 62 of the sixth lens 60 has a concave surface 66' located in the vicinity of the optical axis and a concave surface 67' located in the vicinity of the circumference. Both the object side surface 21 and the image side surface 22 of the second lens 20 are spherical surfaces. It should be noted here that, in order to clearly show the drawing, the reference numerals of the area near the optical axis and the area near the circumference, which are similar to those in the thirteenth embodiment, are omitted in FIG. 69.

The detailed optical data of the eighteenth embodiment is shown in Figure 87, and the aspherical data is shown in Figure 90, where the system image height = 2.240 mm; EFL = 1.101 mm; HFOV = 117.000 degrees; TTL = 21.301 mm ; Fno=2.400.

In the longitudinal spherical aberration diagram 70A of the eighteenth embodiment, the deviation of the imaging point of off-axis rays of different heights is controlled within the range of ±0.010 mm. In the two field curvature aberration diagrams in FIG. 70B and FIG. 70C, the focal length variation of the three representative wavelengths within the entire field of view falls within ±0.04 mm. The distortion aberration diagram in FIG. 70D shows that the distortion aberration of the second embodiment is maintained within the range of ±100%. Based on this, it is explained that compared with the thirteenth embodiment, the eighteenth embodiment can still provide good imaging quality under the condition that the system length has been shortened to about 21.301 mm.

From the above description, it can be known that the half viewing angle of the eighteenth embodiment is greater than that of the thirteenth embodiment. The longitudinal spherical aberration of the eighteenth embodiment is smaller than that of the thirteenth embodiment. The distortion aberration of the eighteenth embodiment is smaller than that of the thirteenth embodiment.

Nineteenth embodiment

Please refer to FIG. 71, which illustrates the nineteenth implementation of the optical imaging lens 1 of the present invention example. Please refer to Figure 72A for the longitudinal spherical aberration on the imaging plane 91 of the nineteenth example, refer to Figure 72B for the astigmatic aberration in the sagittal direction, refer to Figure 72C for the astigmatic aberration in the tangential direction, and refer to Figure 72C for the astigmatic aberration in the tangential direction, and refer to Figure 72C for the distortion aberration, refer to Figure 72D. The optical imaging lens 1 of the nineteenth embodiment is roughly similar to the thirteenth embodiment, and the differences between the two are as follows: the optical data, aspheric coefficients, and the parameters between these lenses 10-60 are more or less slightly different. In addition, the refractive power of the fifth lens 50 is positive. The refractive power of the sixth lens 60 is negative. The image side surface 42 of the fourth lens 40 has a concave surface 47' located in the vicinity of the circumference. The object side 51 of the fifth lens 50 has a convex surface 53' located in the vicinity of the optical axis and a convex surface 54' located in the vicinity of the circumference. The image side surface 52 of the fifth lens 50 has a convex surface 56' located in the vicinity of the optical axis and a convex surface 57' located in the vicinity of the circumference. The object side surface 61 of the sixth lens 60 has a concave surface 63' located in the vicinity of the optical axis and a concave surface 64' located in the vicinity of the circumference. Both the object side surface 51 and the image side surface 52 of the fifth lens 50 are spherical surfaces. Both the object side surface 61 and the image side surface 62 of the sixth lens 60 are spherical surfaces. It should be noted here that, in order to clearly show the drawing, the reference numerals of the area near the optical axis and the area near the circumference, which are similar to those in the thirteenth embodiment, are omitted in FIG. 71.

The detailed optical data of the nineteenth embodiment is shown in Figure 89, and the aspherical data is shown in Figure 92, where the system image height = 2.057 mm; EFL = 1.189 mm; HFOV = 102.500 degrees; TTL = 11.689 mm ; Fno=2.200.

In the longitudinal spherical aberration diagram 72A of the nineteenth embodiment, the deviation of the imaging point of off-axis rays of different heights is controlled within the range of ±0.025 mm. In the two field curvature aberration diagrams in Figure 72B and Figure 72C, the three representative wavelengths are within the entire field of view The change in focal length of the lens is within ±0.08 mm. The distortion aberration diagram in FIG. 72D shows that the distortion aberration of the nineteenth example is maintained within the range of ±100%. This shows that compared with the thirteenth embodiment, the nineteenth embodiment can still provide good imaging quality under the condition that the system length has been shortened to about 11.689 mm.

From the above description, it can be known that the system length of the nineteenth embodiment is smaller than that of the thirteenth embodiment.

Twentieth embodiment

Please refer to FIG. 73, which illustrates the twentieth embodiment of the optical imaging lens 1 of the present invention. Please refer to Figure 74A for the longitudinal spherical aberration on the imaging surface 91 of the twentieth embodiment, refer to Figure 74B for the astigmatic aberration in the sagittal direction, refer to Figure 74C for the astigmatic aberration in the tangential direction, and refer to Figure 74C for the astigmatic aberration in the tangential direction, and refer to Figure 74C for the distortion aberration, refer to Figure 74D. The optical imaging lens 1 of the twentieth embodiment is substantially similar to the thirteenth embodiment, and the difference between the two is as follows: the optical imaging lens 1 further includes a seventh lens 70. The seventh lens 70 is disposed between the third lens 30 and the aperture 80. The material of the seventh lens 70 is plastic. The seventh lens 70 has an object side surface 71 facing the object side 2 and an image side surface 72 facing the image side 3. The object side 71 of the seventh lens 70 has a concave surface 73 located in the vicinity of the optical axis and a convex surface 74' located in the vicinity of the circumference. The image side surface 72 of the seventh lens 70 has a convex surface 76 located near the optical axis and a convex surface 77 located near the circumference. Both the object side surface 71 and the image side surface 72 are aspherical surfaces. It can also be defined by the above formula (1), which will not be repeated here. In addition, the optical data, aspheric coefficients, and the parameters of these lenses between 10 and 60 are more or less different. It should be noted here that, in order to clearly show the figure, the parts in the vicinity of the optical axis and the circumference similar to those in the thirteenth embodiment are omitted in FIG. 73. The label of the area. In addition, for the definition of related parameters of the seventh lens 70, refer to the above paragraphs, and redefine: the distance from the image side surface 32 of the third lens 30 to the object side surface 71 of the seventh lens 70 on the optical axis 4 is G37. The distance from the image side surface 72 of the seventh lens 70 to the object side surface 41 of the fourth lens 40 on the optical axis 4 is G74. And AAG=G12+G23+G37+T7+G74+G45+G56.

The detailed optical data of the twentieth embodiment is shown in Fig. 91, and the aspheric data is shown in Fig. 92, where the system image height=2.240 mm; EFL=0.966 mm; HFOV=104.500 degrees; TTL=12.470 mm ; Fno=2.100.

With reference to FIGS. 74A to 74D, the diagrams in FIG. 74A illustrate the longitudinal spherical aberration of the twentieth embodiment, and the diagrams in FIGS. 74B and 74C illustrate the twentieth embodiment when the wavelengths are 470nm, 555nm and 650nm. When the field curvature aberration in the sagittal direction and the field curvature aberration in the tangential direction are on the imaging surface 91, the diagram in FIG. 74D illustrates that when the wavelengths of the twentieth embodiment are 470nm, 555nm, and 650nm, the field curvature aberrations on the imaging plane 91 Distortion aberration on the surface. The longitudinal spherical aberration diagram of the twentieth embodiment is shown in Fig. 74A. The curves formed by each wavelength are very close and approach the middle, indicating that off-axis rays of different heights of each wavelength are concentrated near the imaging point. It can be seen from the deviation of the curve of one wavelength that the deviation of the imaging point of off-axis rays of different heights is controlled within the range of ±0.015 mm, so the twentieth embodiment does significantly improve the spherical aberration of the same wavelength. In addition, The distances between the three representative wavelengths are also quite close to each other, and the imaging positions of the different wavelengths of light have been quite concentrated, so the chromatic aberration has also been significantly improved.

In the two field curvature aberration diagrams in Fig. 74B and Fig. 74C, the focal length changes of the three representative wavelengths within the entire field of view are within ±0.07 mm, indicating the second The optical system of the tenth embodiment can effectively eliminate aberrations. The distortion aberration diagram in FIG. 74D shows that the distortion aberration of the twentieth embodiment is maintained within ±100%, indicating that the distortion aberration of the twentieth embodiment meets the imaging quality requirements of the optical system. Accordingly, compared with the existing optical lens, the twentieth embodiment can still provide good imaging quality under the condition that the system length has been shortened to about 14.055 mm.

Twenty-first embodiment

Please refer to FIG. 75, which illustrates the twenty-first embodiment of the optical imaging lens 1 of the present invention. Please refer to FIG. 76A for the longitudinal spherical aberration on the imaging surface 91 in the twenty-first embodiment, refer to FIG. 76B for the astigmatic aberration in the sagittal direction, refer to FIG. 76C for the astigmatic aberration in the tangential direction, and refer to FIG. 76C for the distortion aberration. Refer to Figure 76D. The optical imaging lens 1 of the twenty-first embodiment is roughly similar to the twentieth embodiment, and the differences between the two are as follows: the optical imaging lens 1 of the twenty-first embodiment further includes an eighth lens 8. The eighth lens 8 is the fourth lens having refractive power three times from the aperture 80 to the image side. Alternatively, the eighth lens 8 is disposed between the sixth lens 60 and the filter 90. The eighth lens 8 has an object side surface 81 facing the object side 2 and an image side surface 82 facing the image side 3. The object side 81 of the eighth lens 8 has a convex surface 83 located in the vicinity of the optical axis and a concave surface 84 located in the vicinity of the circumference. The image side surface 82 of the eighth lens 8 has a convex surface 86 located near the optical axis and a convex surface 87 located near the circumference. Both the object side surface 81 and the image side surface 82 are aspherical surfaces. It can also be defined by the above formula (1), which will not be repeated here. The object side surface 31 of the third lens 30 has a convex surface 33' located in the vicinity of the optical axis. The image side surface 62 of the sixth lens 60 has a concave surface 67' located in the vicinity of the circumference. The image side 72 of the seventh lens 70 has an area near the circumference The concave portion 77’. In addition, the optical data, aspheric coefficients, and the parameters of these lenses between 10 and 70 are more or less different. It should be noted here that, in order to clearly show the drawing, the reference numerals of the area near the optical axis and the area near the circumference, which are similar to those in the twentieth embodiment, are omitted in FIG. 75.

For the twenty-first embodiment, T8 is the center thickness of the eighth lens 8 on the optical axis 4. In the optical imaging lens 1 on the optical axis 4, the total center thickness of all lenses with refractive power is called ALT, that is, ALT=T1+T2+T3+T4+T5+T6+T7+T8.

In addition, redefine: f8 is the focal length of the eighth lens 8; n8 is the refractive index of the eighth lens 80; υ 8 is the Abbe number of the eighth lens 8. The distance from the image side 62 of the sixth lens 60 to the object side 81 of the eighth lens 8 on the optical axis 4 is G68, and the distance from the image side 82 of the eighth lens 8 to the object side 92 of the filter 90 on the optical axis 4 is G68. The distance is G8F.

The detailed optical data of the twenty-first embodiment is shown in Fig. 93, and the aspherical data is shown in Fig. 94, where the system image height=2.240 mm; EFL=0.969 mm; HFOV=104.500 degrees; TTL=14.055 mm Centimeters; Fno=2.100.

With reference to FIGS. 76A to 76D, the diagram in FIG. 76A illustrates the longitudinal spherical aberration of the twenty-first embodiment, and the diagrams in FIGS. 76B and 76C illustrate the twenty-first embodiment when the wavelengths are 470nm and 555nm, respectively. And the field curvature aberration in the sagittal direction and the tangential direction on the imaging plane 91 at 650nm. The diagram in FIG. 76D shows that the twenty-first embodiment is at 470nm, 555nm, and 650nm. Distortion aberration on the imaging surface 91. Graphical diagram of the longitudinal spherical aberration of the twenty-first embodiment In 76A, the curves formed by each wavelength are very close and approach the middle, indicating that off-axis rays of different heights of each wavelength are concentrated near the imaging point. It can be seen from the deflection amplitude of the curve of each wavelength that the difference is different. The deviation of the imaging point of the high off-axis light is controlled within the range of ±0.375 mm, so the twenty-first embodiment does significantly improve the spherical aberration of the same wavelength. In addition, the distances between the three representative wavelengths are also quite close to each other, representing The imaging positions of light of different wavelengths have been quite concentrated, so the chromatic aberration has also been significantly improved.

In the two field curvature aberration diagrams in Fig. 76B and Fig. 76C, the focal length variation of the three representative wavelengths within the entire field of view falls within ±0.08 mm, indicating that the optical system of the twenty-first embodiment can Effectively eliminate aberrations. The distortion aberration diagram in FIG. 76D shows that the distortion aberration of the twenty-first embodiment is maintained within the range of ±100%, indicating that the distortion aberration of the twenty-first embodiment has met the imaging quality of the optical system. According to the requirements, it is shown that compared with the existing optical lens, the twenty-first embodiment can still provide good imaging quality under the condition that the system length has been shortened to about 14.055 mm.

In addition, the important parameters of the thirteenth to twenty-first embodiments are sorted out in FIG. 95, FIG. 96, FIG. 97, and FIG. 98, respectively.

First, in Figures 95 and 96, the units of the corresponding values in the fields "Fno", "V1" ~ "V8" are dimensionless, the units of the corresponding values in the field "Half-FOV" are degrees, and the other fields The value corresponding to the bit is in millimeters.

Next, in Figures 97 and 98, the fields "y at 0.8 field of view", "y at 0.8716 field", "BFL", "ALT", "AAG", "TL", and "TTL" correspond to the values The unit is millimeters. The fields "corresponding to the ingested ω at 0.8 visual field" and "at 0.8716 The unit of the value corresponding to "ω corresponding to intake depending on the place" is degree. The values corresponding to other fields are dimensionless.

Please refer to Figure 58A, Figure 58B, Figure 97 and Figure 98. In the field "ω corresponding to ingestion in 0.8 visual field", it means that the image sensor can correspondingly ingest in 0.8 times visual field. The half angle of view of the image. The field "corresponding to the intake ω at 0.8716 depending on the location" and so on.

On the other hand, in the field "y in 0.8 field of view", the meaning it represents is: the image height corresponding to the 0.8 times field of view of the image sensor. The field "y in the 0.8716 field of view" can be deduced by analogy.

For satisfying the following conditional expressions, at least one of the objectives is to maintain the system focal length and the optical parameters at an appropriate value, to avoid any parameter that is too large to be conducive to the correction of the aberration of the optical imaging system as a whole, or to avoid any parameter It is too small to affect assembly or increase the difficulty of manufacturing.

For the conditional expression that meets (EFL+AAG+BFL)/ALT≦1.500, it is preferably limited to 0.800≦(EFL+AAG+BFL)/ALT≦1.500.

For the conditional formula that meets (EFL*Fno+T4)/ImgH≦2.100, it is preferably limited to 1.000≦(EFL*Fno+T4)/ImgH≦2.100.

For the following conditional expressions, at least one of the objectives is to maintain the thickness and spacing of each lens at an appropriate value, to avoid any parameter that is too large, which is not conducive to the overall thinning of the optical imaging lens, or to avoid any parameter that is too small to affect Assemble or increase the difficulty of manufacturing.

For the conditional formula that meets TL/ALT≦3.500, it is better limited to 1.260 ≦TL/ALT≦3.500.

For the conditional formula that meets (G12+G45+T5+G56)/T1≦2.900, it is preferably limited to 0.800≦(G12+G45+T5+G56)/T1≦2.900.

For the conditional expression that meets (G45+G56+T5+T6)/G23≦4.300, it is preferably limited to 0.710≦(G45+G56+T5+T6)/G23≦4.300.

For the conditional expression that meets (G34+G45+T4+T5)/T1≦10.400, it is preferably limited to 2.730≦(G34+G45+T4+T5)/T1≦10.400

For the conditional formula that meets (G34+G45+T3+T6)/T2≦7.300, it is preferably limited to 0.970≦(G34+G45+T3+T6)/T2≦7.300.

For the conditional formula that meets (G23+G34+G45+T5)/T1≦6.000, it is preferably limited to 3.500≦(G23+G34+G45+T5)/T1≦6.000.

For the conditional formula that meets TTL/ALT≦2.500, it is preferably limited to 1.650≦TTL/ALT≦2.500.

For the conditional expression that meets (G12+G45+T5+G56)/T4≦6.100, it is preferably limited to 1.100≦(G12+G45+T5+G56)/T4≦6.100.

For the conditional expression that meets (G45+G56+T4+T6)/G23≦3.300, it is preferably limited to 0.690≦(G45+G56+T4+T6)/G23≦3.300.

For the conditional formula that meets (G34+G45+T3+T6)/T1≦6.500, it is preferably limited to 1.200≦(G34+G45+T3+T6)/T1≦6.500.

For the conditional formula that meets (G34+G45+T4+T5)/T2≦6.850, it is preferably limited to 1.900≦(G34+G45+T4+T5)/T2≦6.850.

For the conditional expression that meets (G23+G34+G45+T6)/T1≦10.000, compare The best limit is 0.915≦(G23+G34+G45+T6)/T1≦10.000.

In view of the unpredictability of the optical system design, under the framework of the present invention, meeting the above conditional expressions can better shorten the length of the lens of the present invention, increase the available aperture, improve the imaging quality, or increase the assembly yield rate to improve the previous Disadvantages of technology.

In addition, any combination of the embodiment parameters can be selected to increase the lens limit, so as to facilitate the lens design of the present invention with the same architecture. In view of the unpredictability of the optical system design, under the framework of the present invention, meeting the above conditional expressions can better shorten the system length, improve the imaging quality, or increase the assembly yield of the optical imaging lens 10 of the embodiment of the present invention. And to improve the shortcomings of the prior art. The above-listed exemplary limiting relational expressions can also be selectively combined with unequal numbers and applied to the embodiments of the present invention, and they are not limited thereto. In addition to the foregoing relational expressions, other detailed structures such as the arrangement of concave and convex surfaces of more lenses can also be designed for a single lens or more widely for multiple lenses, so as to strengthen the control of system performance and/or resolution. It should be noted that these details need to be selectively combined and applied to other embodiments of the present invention without conflict.

The numerical range including the maximum and minimum values obtained from the combination ratio relationship of the optical parameters disclosed in the various embodiments of the present invention can be implemented accordingly.

In addition, any combination of the embodiment parameters can be selected to increase the lens limit, so as to facilitate the lens design of the present invention with the same architecture.

In summary, the optical imaging lens 10 of the embodiment of the present invention can achieve the following effects and advantages:

1. The longitudinal spherical aberration, astigmatic aberration, and distortion of each embodiment of the present invention are consistent with each other Compliance with the specification. In addition, the three off-axis rays of red, green, and blue representing wavelengths at different heights are all concentrated near the imaging point. From the deflection amplitude of each curve, it can be seen that the deviation of the imaging point of off-axis rays of different heights is controlled and has Good spherical aberration, aberration, and distortion suppression capabilities. Further referring to the imaging quality data, the distances between the three representative wavelengths of red, green, and blue are also quite close to each other, which shows that the embodiment of the present invention has good concentration of light of different wavelengths under various conditions and has excellent dispersion suppression ability. Therefore, it can be seen from the above that the present invention has good optical performance.

2. The imaging circle IC of the optical imaging lens 1 of the present invention has an inscribed rectangular RT with an aspect ratio of 4:3. The reference line HL parallel to the long side LE of the inscribed rectangle RT captures images with a field of view greater than or equal to 175° and less than or equal to 188°, and the diagonal line DL of the rectangle RT captures images greater than or equal to 209° and less than or equal to 234° °Image of the field of view. For an image sensor with an aspect ratio of 4:3, the horizontal viewing angle is greater than or equal to 175 degrees, and there is no blind angle in the horizontal direction. At the same time, the four corners of the image sensor have imaging light intake to reach the four corners of the image sensor No vignetting effect.

3. The ratio of the field of view corresponding to the angle of view taken by the diagonal line DL and the field of view corresponding to the angle taken by the reference line HL is 1:0.8, which is conducive to no blind angles of the field of view in the horizontal direction and aspect ratio 4: 3The four corners of the image sensor are designed without vignetting.

4. The imaging circle IC of the optical imaging lens 1 of the present invention has an inscribed rectangle RT with an aspect ratio of 16:9. The reference line HL parallel to the long side LE of the inscribed rectangle RT corresponds to capture images of the field of view greater than or equal to 176° and less than or equal to 201°, and the diagonal line DL of the rectangle RT corresponds to capture greater than or equal to 205° and less than or equal to 232 ° The image of the field of view. For an image sensor with an aspect ratio of 16:9, the horizontal viewing angle is greater than 176 degrees to achieve no blind angle in the horizontal direction, and at the same time, the four corners of the image sensor have imaging light intake to reach the four corners of the image sensor without vignetting effect.

5. The ratio of the field of view corresponding to the angle of view corresponding to the diagonal line DL to the field of view corresponding to the angle of view corresponding to the reference line HL is 1:0.8716, which is beneficial to the horizontal direction without blind angles and the aspect ratio of 16:9 The four corners of the image sensor are designed without vignetting.

6. When it is satisfied that the aperture 80 is between the third lens 30 and the fourth lens 40, the first lens 10 has negative refractive power, the second lens 20 has negative refractive power, the third lens 30 has positive refractive power, and the The object side surface 31 of the triple lens 30 has a concave surface 34 and other surface combinations located in the vicinity of the circumference. It is advantageous to use at least three lenses in front of the aperture for ultra-wide-angle light collection, and at the same time use at least three lenses behind the aperture to correct chromatic aberration and astigmatism. The aberration maintains a certain imaging quality, and the preferable surface shape is limited to that the object side surface 31 of the third lens 3 has a concave surface 33 located near the optical axis.

Seven. Among the three lenses after the aperture 80, there is a group of aspherical cemented lens groups, which is beneficial to improve the image quality such as chromatic aberration and astigmatism.

8. When the optical imaging lens 1 satisfies the 3.5≦(V1+V2)/V3≦6 conditional formula and the above restrictions in this case, it is beneficial to correct the chromatic aberration of the first three lenses.

9. When the optical imaging lens 1 satisfies the 3.5≦(V1+V4)/V3≦6 conditional formula and the above restrictions in this case, it is beneficial to correct the chromatic aberration of the front four lenses.

10. With the improvement of image processing performance, it is easier to correct distortion aberrations by image processing and the cost of image processing is gradually reduced. The optical imaging lens 1 of the embodiment of the present invention adopts a design in which the image height y and the half angle of view ω are approximately proportional to each other, so as to achieve the advantages of no blind angles in the horizontal direction and no vignetting at the four corners of the image sensor. Although the distortion aberration is worse than that of existing lenses, with real-time image processing, images with extremely low distortion aberration can be obtained in real time. For example, the optical imaging lens 1 of the thirteenth to twenty-first embodiments of the present invention captures different angles of half angle of view ω, all satisfying the following conditional formula: 0.900 radians ^-1 ≦y/(EFL * ω)≦1.300 Radian ^-1 , ω is the half angle of view taken by the optical imaging lens 1 from different angles, and y is the image height corresponding to each half angle of view, where ω is calculated in radian, which can be regarded as unitless, so y/(EFL * ω) can be regarded as unitless, or the unit is radians ^-1 . The image height y, half angle of view ω (in degrees), half angle of view ω (in radians) of the optical imaging lens 1 and the corresponding values of y/(EFL * ω) (ω in this value is in radians) Numerical calculation) The corresponding relationship is shown in Fig. 99 to Fig. 101. When the optical imaging lens 1 takes in the half angle of view ω of different angles to satisfy 0.900 radian ^-1 ≦y/(EFL * ω)≦1.300 radian ^-1 , it is beneficial to realize the design of an approximately equal proportional relationship between the image height y and the half angle of view ω.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be subject to those defined by the attached patent application scope.

1: Optical imaging lens

2: Object side

3: image side

4: Optical axis

10: The first lens

20: second lens

30: third lens

40: fourth lens

50: Fifth lens

60: sixth lens

80: aperture

90: filter

91: imaging surface

11, 21, 31, 41, 51, 61: Object side

12, 22, 32, 42, 52, 62: like the side

13, 14, 23, 24, 36, 37, 43, 44, 46, 47, 63, 64, 66, 67: convex surface

16, 17, 26, 27, 33, 34, 53, 54, 56, 57: concave surface

Claims (20)

An optical imaging lens comprising a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens, and a first lens in sequence along an optical axis from an object side to an image side Six lenses, and each of the first lens to the sixth lens includes an object side surface that faces the object side and allows imaging light to pass through, and an image side surface that faces the image side and allows imaging light to pass through, wherein the first lens is The first lens is counted from the object side to the image side; the second lens is the second lens counted from the object side to the image side; the third lens is counted from the object side to the image side The third lens has a positive refractive power; the fourth lens is the first lens counted from the aperture to the image side; the fifth lens is the second lens counted from the aperture to the image side ; The sixth lens is the third lens counted from the aperture to the image side, in which the optical imaging lens takes in half of the angle of view from different angles and satisfies the following conditional formula: 0.900 radians ^-1 ≦y/(EFL * ω)≦1.300 radians ^-1 ; the optical imaging lens satisfies the following conditional formula: G12/T1

2.100; and 96.75°≦HFOV≦117° where EFL is a system focal length of the optical imaging lens, ω is the half angle of view taken by the optical imaging lens at different angles, and y is an image height corresponding to each half angle of view , G12 is the distance between the image side surface of the first lens and the object side surface of the second lens on the optical axis, T1 is a center thickness of the first lens on the optical axis, and HFOV is the optical axis The imaging lens can receive the range of half of the maximum angle of the object image on the object side; an imaging circle of the optical imaging lens has an inscribed rectangle with an aspect ratio of 4:3 or 16:9. An optical imaging lens comprising a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens and a first lens in sequence along an optical axis from an object side to an image side Six lenses, and each of the first lens to the sixth lens includes an object side surface that faces the object side and allows imaging light to pass through, and an image side surface that faces the image side and allows imaging light to pass through, wherein the first lens is The first lens is counted from the object side to the image side; the second lens is the second lens counted from the object side to the image side; the third lens is counted from the object side to the image side The third lens, the image side of the third lens has a convex surface in the area near the optical axis; the fourth lens is the first lens counted from the aperture to the image side; the fifth lens is from the The second lens is counted from the aperture to the image side; the sixth lens is the third lens counted from the aperture to the image side. Among them, the optical imaging lens captures half of the angle of view from different angles and satisfies the following conditional formula ：0.900 radians ^-1 ≦y/(EFL * ω)≦1.300 radians ^-1 ; the optical imaging lens satisfies the following conditional formula: G12/T1

2.100; and 96.75°≦HFOV≦117° where EFL is a system focal length of the optical imaging lens, ω is the half angle of view taken by the optical imaging lens at different angles, and y is an image height corresponding to each half angle of view , G12 is the distance between the image side surface of the first lens and the object side surface of the second lens on the optical axis, T1 is a center thickness of the first lens on the optical axis, and HFOV is the optical axis The imaging lens can receive a range of half of the maximum angle of the object image on the object side; an imaging circle of the optical imaging lens has an inscribed rectangle with an aspect ratio of 4:3 or 16:9. An optical imaging lens comprising a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens, and a first lens in sequence along an optical axis from an object side to an image side Six lenses, and each of the first lens to the sixth lens includes an object side surface that faces the object side and allows imaging light to pass through, and an image side surface that faces the image side and allows imaging light to pass through, wherein the first lens is The first lens is counted from the object side to the image side; the second lens is the second lens counted from the object side to the image side; the third lens is counted from the object side to the image side The third lens, the image side of the third lens has a convex surface in the area near the circumference; the fourth lens is the first lens counted from the aperture to the image side; the fifth lens is from the aperture The second lens is counted from the image side; the sixth lens is the third lens counted from the aperture to the image side, wherein the optical imaging lens captures half of the angle of view from different angles and satisfies the following conditional expressions: 0.900 radians ^-1 ≦y/(EFL * ω)≦1.300 radians ^-1 ; the optical imaging lens satisfies the following conditional formula: G12/T1

2.100; and 96.75°≦HFOV≦117° where EFL is a system focal length of the optical imaging lens, ω is the half angle of view taken by the optical imaging lens at different angles, and y is an image height corresponding to each half angle of view , G12 is the distance between the image side surface of the first lens and the object side surface of the second lens on the optical axis, T1 is a center thickness of the first lens on the optical axis, and HFOV is the optical axis The imaging lens can receive a range of half of the maximum angle of the object image on the object side; an imaging circle of the optical imaging lens has an inscribed rectangle with an aspect ratio of 4:3 or 16:9. For the optical imaging lens described in items 1 to 3 of the scope of patent application, the optical imaging lens satisfies the following conditional formula: (G12+G45+T5+G56)/T1≦3.500, G45 is the fourth lens The distance between the image side surface and the object side surface of the fifth lens on the optical axis, T5 is a center thickness of the fifth lens on the optical axis, and G56 is the image side surface and the second lens of the fifth lens. The distance of the object side of the six lens on the optical axis. For the optical imaging lens described in items 1 to 3 of the scope of patent application, the optical imaging lens satisfies the following conditional formula: (G45+G56+T5+T6)/G23≦ 2.900, G45 is the distance between the image side of the fourth lens and the object side of the fifth lens on the optical axis, and G56 is the distance between the image side of the fifth lens and the object side of the sixth lens on the optical axis. A distance on the optical axis, T5 is a thickness of the fifth lens on the optical axis, T6 is a thickness of the sixth lens on the optical axis, and G23 is the image side surface of the second lens and the A distance of the object side surface of the third lens on the optical axis. An optical imaging lens comprising a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens, and a first lens in sequence along an optical axis from an object side to an image side Six lenses, and each of the first lens to the sixth lens includes an object side surface that faces the object side and allows imaging light to pass through, and an image side surface that faces the image side and allows imaging light to pass through, wherein the first lens is The first lens is counted from the object side to the image side; the second lens is the second lens counted from the object side to the image side; the third lens is counted from the object side to the image side The third lens, the object side of the third lens has a concave surface located near the optical axis; the fourth lens is the first lens counted from the aperture to the image side; the fifth lens is from the The second lens is counted from the aperture to the image side; the sixth lens is the third lens counted from the aperture to the image side. Among them, the optical imaging lens captures half of the angle of view from different angles and satisfies the following conditional formula ：0.900 radians ^-1 ≦y/(EFL * ω)≦1.300 radians ^-1 ; the optical imaging lens satisfies the following conditional formula: (G12+G45+T5+G56)/T1≦3.500; and 96.75°≦HFOV≦ 117° where EFL is a system focal length of the optical imaging lens, ω is the half angle of view taken by the optical imaging lens at different angles, y is an image height corresponding to each half angle of view, and G12 is the first lens The distance between the image side surface and the object side surface of the second lens on the optical axis, G45 is the distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis, and T5 is A center thickness of the fifth lens on the optical axis, G56 is a distance between the image side surface of the fifth lens and the object side surface of the sixth lens on the optical axis, and T1 is the distance between the first lens A center thickness on the optical axis, and HFOV is the range of half the maximum angle of the object image on the object side that the optical imaging lens can receive; an imaging circle of the optical imaging lens has an aspect ratio of 4:3 or 16:9 inscribed rectangle. For the optical imaging lens described in item 6 of the scope of patent application, the optical imaging lens satisfies the following conditional formula: (G34+G45+T4+T5)/T1≦4.300, G34 is the image side surface of the third lens and the A distance of the object side surface of the fourth lens on the optical axis, and T4 is a center thickness of the fourth lens on the optical axis. For the optical imaging lens described in item 6 of the scope of patent application, the optical imaging lens satisfies the following conditional formula: (G23+G34+G45+T5)/T1≦7.300, G23 is the image side surface of the second lens and the The object-side surface of the third lens is a distance on the optical axis, and G34 is a distance between the image-side surface of the third lens and the object-side surface of the fourth lens on the optical axis. An optical imaging lens comprising a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens, and a first lens in sequence along an optical axis from an object side to an image side Six lenses, and each of the first lens to the sixth lens includes an object side surface that faces the object side and allows imaging light to pass through, and an image side surface that faces the image side and allows imaging light to pass through, wherein the first lens is The first lens is counted from the object side to the image side, and it has a negative refractive power; the second lens is the second lens counted from the object side to the image side; the third lens is from the The third lens is counted from the object side to the image side, and the object side of the third lens has a concave surface located near the optical axis; the fourth lens is the first lens counted from the aperture to the image side The fifth lens is the second lens counted from the aperture to the image side, the object side of the fifth lens has a convex surface located in the vicinity of the optical axis; the sixth lens is from the aperture to the image The third lens is from the side. Among them, the optical imaging lens captures half of the angle of view from different angles and satisfies the following conditional formula: 0.900 radians ^-1 ≦y/(EFL * ω)≦1.300 radians ^-1 ; the optical imaging lens It further satisfies the following conditional formula: (G45+G56+T5+T6)/G23≦2.900, where EFL is a system focal length of the optical imaging lens, ω is the half angle of view taken by the optical imaging lens at different angles, y Is an image height corresponding to each half angle of view, G45 is the distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis, and G56 is the image side surface of the fifth lens A distance from the object side surface of the sixth lens on the optical axis, T5 is a thickness of the fifth lens on the optical axis, T6 is a thickness of the sixth lens on the optical axis, and G23 Is a distance between the image side surface of the second lens and the object side surface of the third lens on the optical axis. The optical imaging lens described in item 9 of the scope of patent application, wherein the optical imaging lens satisfies the following conditional formula: (G12+G45+T5+G56)/T4≦6.100, and G12 is the image side surface of the first lens and the A distance of the object side surface of the second lens on the optical axis, and T4 is a center thickness of the fourth lens on the optical axis. For the optical imaging lens described in item 9 of the scope of patent application, the optical imaging lens satisfies the following conditional formula: (G34+G45+T4+T5)/T2≦6.850, G34 is the image side surface of the third lens and the A distance of the object side surface of the fourth lens on the optical axis, T4 is a central thickness of the fourth lens on the optical axis, and T2 is a central thickness of the second lens on the optical axis. For example, the optical imaging lens of any one of items 1 to 3, 6, and 9 of the scope of patent application, wherein the optical imaging lens satisfies the following conditional formula: (EFL*Fno+T4)/ImgH≦2.100, Fno Is the aperture value of the optical imaging lens, T4 is a central thickness of the fourth lens on the optical axis, and ImgH is a system image height of the optical imaging lens. An optical imaging lens comprising a first lens, a second lens, a third lens, an aperture, a fourth lens, a fifth lens, and a first lens in sequence along an optical axis from an object side to an image side Six lenses, and each of the first lens to the sixth lens includes an object side surface that faces the object side and allows imaging light to pass through, and an image side surface that faces the image side and allows imaging light to pass through, wherein the first lens is The first lens is counted from the object side to the image side, and it has a negative refractive power; the second lens is the second lens counted from the object side to the image side; the third lens is from the The third lens is counted from the object side to the image side, and the object side of the third lens has a concave surface located near the optical axis; the fourth lens is the first lens counted from the aperture to the image side ; The fifth lens is the second lens counted from the aperture to the image side; the sixth lens is the third lens counted from the aperture to the image side, wherein the optical imaging lens takes in different angles Half of the angle of view satisfies the following conditional formula: 0.900 radians ^-1 ≦y/(EFL * ω)≦1.300 radians ^-1 ; the optical imaging lens satisfies the following conditional formula: (G34+G45+T4+T5)/T1≦ 4.300; and G12/T1

2.100 where EFL is a system focal length of the optical imaging lens, ω is the half angle of view taken by the optical imaging lens at different angles, y is an image height corresponding to each half angle of view, G34 is the third lens The distance between the image side surface and the object side surface of the fourth lens on the optical axis, G45 is the distance between the image side surface of the fourth lens and the object side surface of the fifth lens on the optical axis, and T4 is A central thickness of the fourth lens on the optical axis, T5 is a central thickness of the fifth lens on the optical axis, T1 is a central thickness of the first lens on the optical axis, and G12 is the A distance between the image side surface of the first lens and the object side surface of the second lens on the optical axis; an imaging circle of the optical imaging lens has an inscribed aspect ratio of 4:3 or 16:9 rectangle. For the optical imaging lens described in item 13 of the scope of patent application, the optical imaging lens satisfies the following conditional formula: (G34+G45+T3+T6)/T1≦6.500, T3 is the third lens on the optical axis A central thickness, and T6 is a central thickness of the sixth lens on the optical axis. For the optical imaging lens described in item 13 of the scope of patent application, the optical imaging lens satisfies the following conditional formula: (G45+G56+T4+T6)/G23≦3.300, and G56 is the image side surface of the fifth lens and the A distance between the object side surface of the sixth lens on the optical axis, T6 is a center thickness of the sixth lens on the optical axis, and G23 is the image side surface of the second lens and the third lens The distance of the object side on the optical axis. For example, the optical imaging lens of any one of items 1 to 3, 6, 9, and 13 of the scope of patent application, wherein the optical imaging lens satisfies the following conditional formula: 3.500≦(V1+V2)/V3≦6.000 , Where V1 is an Abbe number of the first lens, V2 is an Abbe number of the second lens, and V3 is an Abbe number of the third lens. For example, the optical imaging lens of any one of items 1 to 3, 6, 9, and 13 of the scope of patent application, wherein the optical imaging lens satisfies the following conditional formula: TL/ALT≦1.820, where TL is the A distance from the object side of the first lens to the image side of the sixth lens on the optical axis, and ALT is the sum of a central thickness of all lenses in the optical imaging lens on the optical axis. For example, the optical imaging lens of any one of items 1 to 3, 6, 9, and 13 of the scope of patent application, wherein the optical imaging lens satisfies the following conditional formula: (EFL+AAG+BFL)/ALT≦1.500 , AAG is a distance between the image side surface of the first lens and the object side surface of the second lens on the optical axis, and the image side surface of the second lens and the object side surface of the third lens are on the optical axis A distance on the optical axis, a distance between the image side surface of the third lens and the object side surface of the fourth lens on the optical axis, the image side surface of the fourth lens and the object side surface of the fifth lens in the A distance on the optical axis and a distance between the image side surface of the fifth lens and the object side surface of the sixth lens on the optical axis, BFL is the image side surface to an imaging surface of the sixth lens in the The length on the optical axis, and ALT is the total thickness of each lens on the optical axis. Such as the optical imaging lens of any one of items 1 to 3, 6, 9, and 13 of the scope of patent application, wherein the optical imaging lens satisfies the following conditional formula: 3.500≦(V1+V4)/V3≦6.000 , V1 is an Abbe coefficient of the first lens, V4 is an Abbe coefficient of the fourth lens, and V3 is an Abbe coefficient of the third lens. For example, the optical imaging lens of any one of items 1 to 3, 6, 9, and 13 of the scope of patent application, wherein the optical imaging lens satisfies the following conditional formula: TTL/ALT≦2.500, TTL is the first The distance from the object side surface of the lens to an imaging surface on the optical axis, and ALT is the sum of a central thickness of all lenses in the optical imaging lens on the optical axis.

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