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CN-116047722-B - Optical lens group for shooting, image capturing device and electronic device

CN116047722BCN 116047722 BCN116047722 BCN 116047722BCN-116047722-B

Abstract

The invention provides an optical lens group for image pickup, an image capturing device and an electronic device. The nine lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens from the object side to the image side along the light path. The first lens element with positive refractive power. The seventh lens element side surface is concave at a paraxial region. The eighth lens element with positive refractive power has a convex image-side surface at a paraxial region. The image side surface of the ninth lens element is concave at a paraxial region thereof, and the image side surface of the ninth lens element has at least one convex critical point at an off-axis region thereof. The total number of lenses in the optical lens group for image pickup is nine. When certain conditions are satisfied, the optical lens group for image pickup can satisfy the demands for miniaturization and high imaging quality at the same time. The invention also discloses an image capturing device with the optical lens group for image capturing and an electronic device with the image capturing device.

Inventors

  • CHEN WEIYU

Assignees

  • 大立光电股份有限公司

Dates

Publication Date
20260505
Application Date
20200622
Priority Date
20200520

Claims (20)

  1. 1. An optical lens group for image pickup is characterized by comprising nine lenses, wherein the nine lenses are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens in sequence from an object side to an image side along an optical path; The first lens element with positive refractive power, the third lens element with negative refractive power, the fourth lens element with positive refractive power, the fifth lens element with positive refractive power, the sixth lens element with negative refractive power, the seventh lens element with positive refractive power, the eighth lens element with convex surface at a paraxial region, the ninth lens element with negative refractive power, the ninth lens element with concave surface at a paraxial region, and the ninth lens element with at least one convex critical point at an off-axis region; The total number of lenses in the optical lens group for image pickup is nine, the radius of curvature of the object side surface of the eighth lens is R15, the radius of curvature of the image side surface of the eighth lens is R16, and the aperture value of the optical lens group for image pickup is Fno, which satisfies the following conditions: -0.75 < (R15+R16)/(R15-R16) < 4.0, and 1.0 < Fno < 2.60。
  2. 2. The image capturing optical lens system according to claim 1, wherein a radius of curvature of the eighth lens object-side surface is R15, and a radius of curvature of the eighth lens image-side surface is R16, which satisfies the following condition: -0.30 < (R15+R16)/(R15-R16) < 4.0。
  3. 3. The optical lens assembly for image pickup according to claim 1, wherein each two adjacent lenses in the optical lens assembly for image pickup have an air space therebetween on an optical axis; The distance from the object side surface of the first lens element to the imaging surface on the optical axis is TL, the maximum imaging height of the optical lens group for image capturing is ImgH, and the aperture value of the optical lens group for image capturing is Fno, which satisfies the following conditions: 1.0 < TL/ImgH < 1.50, and 1.86 ≤ Fno < 2.10。
  4. 4. The image capturing optical lens system according to claim 1, wherein a vertical distance between a critical point of the eighth lens object-side surface and the optical axis is Yc81, and a vertical distance between a critical point of the ninth lens image-side surface and the optical axis is Yc92, which satisfies the following condition: 0.50 < Yc92/Yc81 < 2.30。
  5. 5. the image pickup optical lens group according to claim 1, wherein the number of lenses having an abbe number smaller than 26 in the image pickup optical lens group is V26, which satisfies the following condition: 3 ≤ V26。
  6. 6. The image capturing optical lens assembly according to claim 1, wherein a distance from the object side surface of the first lens element to the imaging plane on the optical axis is TL, a focal length of the image capturing optical lens assembly is f, and a maximum angle of view in the image capturing optical lens assembly is FOV, which satisfies the following condition: TL/f < 1.40, and 70. The degree < FOV < 105 degrees.
  7. 7. The image pickup optical lens group according to claim 1, wherein a radius of curvature of the ninth lens image side surface is R18, and a maximum imaging height of the image pickup optical lens group is ImgH, which satisfies the following condition: R18/ImgH < 1.0。
  8. 8. The image capturing optical lens assembly according to claim 1, wherein a distance from the object side surface of the first lens element to the imaging plane on the optical axis is TL, a maximum imaging height of the image capturing optical lens assembly is ImgH, and a chief ray incidence angle of the image capturing optical lens assembly at a position of the maximum imaging height is CRA, which satisfies the following condition: TL/[ImgH×tan(CRA)] < 3.0。
  9. 9. The image capturing optical lens assembly according to claim 1, wherein a maximum effective radius of the ninth lens image side surface is Y92, and a distance from the ninth lens image side surface to the imaging plane on the optical axis is BL, which satisfies the following condition: 4.0 < Y92/BL < 20。
  10. 10. The image capturing optical lens assembly according to claim 1, wherein a distance between the first lens object-side surface and the ninth lens image-side surface on the optical axis is Td, and a sum of thicknesses of all lenses in the image capturing optical lens assembly on the optical axis is Σct, which satisfies the following condition: Td/ΣCT < 1.80。
  11. 11. the image pickup optical lens group according to claim 1, wherein an abbe number minimum value among all lenses of the image pickup optical lens group is Vmin, which satisfies the following condition: Vmin < 20; Wherein the Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the Abbe number of the fourth lens is V4, the Abbe number of the fifth lens is V5, the Abbe number of the sixth lens is V6, the Abbe number of the seventh lens is V7, the Abbe number of the eighth lens is V8, the Abbe number of the ninth lens is V9, the Abbe number of the ith lens is Vi, the refractive index of the first lens is N1, the refractive index of the second lens is N2, the refractive index of the third lens is N3, the refractive index of the fourth lens is N4, the refractive index of the fifth lens is N5, the refractive index of the sixth lens is N6, the refractive index of the seventh lens is N7, the refractive index of the eighth lens is N8, the refractive index of the ninth lens is N9, the refractive index of the i-th lens is Ni, and at least one lens in the optical lens group for image pickup satisfies the following conditions: 6.0 < Vi/Ni < 12.0, where i=1, 2, 3, 4, 5, 6, 7, 8 or 9.
  12. 12. The image capturing optical lens system according to claim 1, wherein a perpendicular distance between an optical axis and a maximum distance between an object-side surface of the ninth lens and an image-side surface of the ninth lens parallel to the optical axis is y_ MaxET9, and a maximum effective radius of the image-side surface of the ninth lens is Y92, which satisfies the following condition: 0.40 < Y_MaxET9/Y92 < 0.80。
  13. 13. An image capturing device, comprising: The optical lens group for image pickup according to claim 1, and The electronic photosensitive component is arranged on an imaging surface of the optical lens group for shooting.
  14. 14. An electronic device, comprising at least two image capturing devices, wherein the at least two image capturing devices are located on the same side of the electronic device, and wherein the at least two image capturing devices comprise an image capturing device according to claim 13, wherein the respective maximum viewing angles of the at least two image capturing devices are different, and the maximum viewing angles of the at least two image capturing devices differ by at least 20 degrees.
  15. 15. An optical lens group for image pickup is characterized by comprising nine lenses, wherein the nine lenses are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens in sequence from an object side to an image side along an optical path; The first lens element with positive refractive power has a concave image-side surface at a paraxial region, the second lens element with positive refractive power has a positive refractive power, the eighth lens element with positive refractive power has a convex image-side surface at a paraxial region, the ninth lens element with negative refractive power has a concave image-side surface at a paraxial region, and the ninth lens element with image-side surface at an off-axis region has at least one convex critical point; The total number of lenses in the optical lens group for image capturing is nine, the radius of curvature of the object side surface of the eighth lens is R15, the radius of curvature of the image side surface of the eighth lens is R16, the aperture value of the optical lens group for image capturing is Fno, the distance from the object side surface of the first lens to the imaging plane on the optical axis is TL, and the maximum imaging height of the optical lens group for image capturing is ImgH, which satisfies the following conditions: -0.50 < (R15+R16)/(R15-R16) < 4.0; 1.0 < FNo < 2.60 > 1.0 < TL/ImgH < 2.0。
  16. 16. The image capturing optical lens assembly according to claim 15, wherein a radius of curvature of the eighth lens object side surface is R15, a radius of curvature of the eighth lens image side surface is R16, an aperture value of the image capturing optical lens assembly is Fno, a distance from the first lens object side surface to the imaging surface on the optical axis is TL, and a maximum imaging height of the image capturing optical lens assembly is ImgH, which satisfies the following condition: -0.50 < (R15+R16)/(R15-R16) < 3.0; 1.20 < FNo < 2.30 > 1.0 < TL/ImgH < 1.50。
  17. 17. The optical lens assembly for image capturing according to claim 15, wherein each two adjacent lenses in the optical lens assembly for image capturing have an air space on the optical axis, wherein the radius of curvature of the object side surface of the eighth lens is R15, the radius of curvature of the image side surface of the eighth lens is R16, the aperture value of the optical lens assembly for image capturing is Fno, the distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, and the maximum imaging height of the optical lens assembly for image capturing is ImgH, which satisfies the following conditions: -0.50 < (R15+R16)/(R15-R16) ≤ 1.82; 1.20 < FNo < 2.10 > 1.33 ≤ TL/ImgH ≤ 1.80。
  18. 18. The image capturing optical lens assembly according to claim 15, wherein a vertical distance between a critical point of the eighth lens object-side surface and the optical axis is Yc81, and a vertical distance between a critical point of the ninth lens image-side surface and the optical axis is Yc92, which satisfies the following condition: 0.50 < Yc92/Yc81 < 2.30。
  19. 19. the image pickup optical lens group according to claim 15, wherein the number of lenses having an abbe number smaller than 40 in the image pickup optical lens group is V40, which satisfies the following condition: 4 ≤ V40 ≤ 7。
  20. 20. the image pickup optical lens group according to claim 15, wherein a radius of curvature of the ninth lens image side surface is R18, and a maximum imaging height of the image pickup optical lens group is ImgH, which satisfies the following condition: 0.18 ≤ R18/ImgH < 0.75。

Description

Optical lens group for shooting, image capturing device and electronic device The application relates to a divisional application, the application date of the original application is 22 days of 2020 and 06 months, the application number is 202010575753.0, and the application is an optical lens group for image pickup, an image capturing device and an electronic device. Technical Field The present invention relates to an optical lens assembly for image capturing, an image capturing device, and an electronic apparatus, and more particularly, to an optical lens assembly for image capturing and an image capturing device suitable for an electronic apparatus. Background With the advancement of semiconductor technology, the performance of electronic photosensitive devices is improved, and pixels can be made to have smaller sizes, so that an optical lens with high imaging quality is considered to be an indispensable feature. Along with the technological change, the electronic device equipped with the optical lens has a wider application range, and the requirements for the optical lens are more diversified. Because the conventional optical lens is less likely to be balanced among requirements of imaging quality, sensitivity, aperture size, volume or viewing angle, the invention provides an optical lens which meets the requirements. Disclosure of Invention The invention provides an optical lens assembly for image pickup, an image capturing device and an electronic device. The optical lens assembly for image pickup sequentially comprises nine lenses from an object side to an image side along an optical path. When certain conditions are met, the optical lens group for image pickup provided by the invention can meet the requirements of miniaturization and high imaging quality at the same time. The invention provides an optical lens group for image pickup, comprising nine lenses. The nine lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens from the object side to the image side along the light path. The first lens element with positive refractive power. The seventh lens element side surface is concave at a paraxial region. The eighth lens element with positive refractive power has a convex image-side surface at a paraxial region. The image side surface of the ninth lens element is concave at a paraxial region thereof, and the image side surface of the ninth lens element has at least one convex critical point at an off-axis region thereof. The total number of lenses in the optical lens group for image pickup is nine. The eighth lens element object-side surface has a radius of curvature R15, the eighth lens element image-side surface has a radius of curvature R16, and the aperture value of the image-capturing optical lens assembly has Fno, which satisfies the following conditions: -0.75< (R15+R16)/(R15-R16), and Fno<2.60。 The invention also provides an optical lens group for image pickup, which comprises nine lenses. The nine lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens from the object side to the image side along the light path. The first lens-side surface is concave at a paraxial region. The second lens element with positive refractive power. The eighth lens element with positive refractive power has a convex image-side surface at a paraxial region. The ninth lens element with negative refractive power has a concave image-side surface at a paraxial region, and the image-side surface of the ninth lens element has at least one convex critical point at an off-axis region. The total number of lenses in the optical lens group for image pickup is nine. The radius of curvature of the object-side surface of the eighth lens element is R15, the radius of curvature of the image-side surface of the eighth lens element is R16, the aperture value of the optical lens group for image pickup is Fno, the distance from the object-side surface of the first lens element to the imaging surface on the optical axis is TL, and the maximum imaging height of the optical lens group for image pickup is ImgH, which satisfies the following conditions: -0.50<(R15+R16)/(R15-R16); fno <2.60, and TL/ImgH<2.0。 The invention provides an image capturing device, which comprises the optical lens group for image capturing and an electronic photosensitive component, wherein the electronic photosensitive component is arranged on an imaging surface of the optical lens group for image capturing. The invention provides an electronic device, which comprises at least two image capturing devices, wherein the at least two image capturing devices are positioned on the same side of the electronic device. The at least two image capturing devices comprise one image capturing device. The maximum visual angles of the at least two image capturing devices are diff