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CN-224232030-U - Wide-angle high-definition camera

CN224232030UCN 224232030 UCN224232030 UCN 224232030UCN-224232030-U

Abstract

The utility model discloses a wide-angle high-definition camera, and belongs to the technical field of cameras. A wide-angle high-definition camera comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens, wherein the object side surfaces and the image side surfaces of the first lens, the second lens, the third lens, the fourth lens and the fifth lens are aspheric; according to the utility model, through the five-lens design consisting of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the diaphragm, and the surface-shaped structure of each lens is combined with the optimal range of optical parameters, the optical system of the camera has the characteristics of wide angle and high definition, and has good imaging quality, high-definition imaging can be realized, and the imaging effect can be more similar to that of a shot object, so that the high-image texture, high resolution and high definition of a shot picture are realized, and the shooting requirement of people is ensured to be met.

Inventors

  • LIN XIAOYI
  • SHEN SHUN
  • QI JIAJIA
  • YE QIAOYUN

Assignees

  • 广东旭业光电科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250228

Claims (9)

  1. 1. The wide-angle high-definition camera comprises a first lens (1), a second lens (2), a third lens (3), a fourth lens (4) and a fifth lens (5), and is characterized in that the object side surfaces and the image side surfaces of the first lens (1), the second lens (2), the third lens (3), the fourth lens (4) and the fifth lens (5) are aspheric surfaces, and the wide-angle high-definition camera also comprises a diaphragm (6) arranged between the second lens (2) and the third lens (3), The first lens element (1) and the fifth lens element (5) with negative refractive power, the second lens element (2), the third lens element (3) and the fourth lens element (4) with positive refractive power, the object-side surfaces of the first lens element (1) and the fifth lens element (5) are convex at the paraxial region, the object-side surface of the second lens element (2) is convex, the image-side surface of the third lens element (3) is convex, the object-side surface of the fourth lens element (4) is concave at the paraxial region, the image-side surface of the fourth lens element (4) is convex at the paraxial region, and the wide-angle high-definition camera satisfies the following relationship: 1.0620< f/R5<1.0680,2.23< V4/V2<2.53, wherein f is the focal length of the high-definition optical imaging lens, R5 is the curvature radius of the object side surface of the fifth lens (5), V4 is the abbe number of the fourth lens (4), and V2 is the abbe number of the second lens (2).
  2. 2. The wide-angle high-definition camera according to claim 1, wherein the wide-angle high-definition camera satisfies the following relation of 2.15< (d23+ct3)/f <2.18, wherein D23 is the distance between the image side surface of the second lens element (2) and the object side surface of the third lens element (3) on the optical axis, and CT3 is the thickness of the third lens element (3) on the optical axis.
  3. 3. The wide-angle high-definition camera according to claim 1, wherein the wide-angle high-definition camera satisfies the following relation 0.15< f/TL <0.23, wherein TL is the distance from the first lens (1) to the imaging surface on the optical axis.
  4. 4. The wide-angle high-definition camera according to claim 1, wherein the wide-angle high-definition camera satisfies the following relation 4.61< TD/T12<4.66, where TD is a distance between an object side surface of the first lens element (1) and an image side surface of the fifth lens element (5) on an optical axis, and T12 is a distance between the first lens element (1) and the second lens element (2) on the optical axis.
  5. 5. The wide-angle high-definition camera according to claim 1, wherein the wide-angle high-definition camera satisfies the following relation of 5.22< TTL/f <5.36, wherein TTL is the total optical length of the photographing optical lens.
  6. 6. The wide-angle high-definition camera according to claim 1, wherein the wide-angle high-definition camera satisfies the following relation 1.00< T34/AAT <1.56, wherein T34 is an air gap between an image side surface of the third lens (3) and an object side surface of the fourth lens (4) on an optical axis, and AAT is a sum of air gaps between adjacent lenses of the first lens 1 to the fifth lens (5).
  7. 7. The wide-angle high-definition camera according to claim 1, wherein the wide-angle high-definition camera satisfies the following relation 2.26< f/(f1+f4) <2.89, where f1 is the focal length of the first lens (1) and f4 is the focal length of the fourth lens (4).
  8. 8. The wide-angle high-definition camera according to claim 1, wherein the wide-angle high-definition camera satisfies the following relation 0.05< f/f123<0.09, wherein f123 is a combined focal length of the first lens (1), the second lens (2) and the third lens (3).
  9. 9. The wide-angle high-definition camera according to claim 1, wherein the wide-angle high-definition camera satisfies the following relation of-23.86 < f5/CT5< -22.06, wherein f5 is a focal length of the fifth lens (5), and CT5 is a center thickness of the fifth lens (5) along an optical axis.

Description

Wide-angle high-definition camera Technical Field The utility model relates to the technical field of cameras, in particular to a wide-angle high-definition camera. Background With the continuous development of technology, the electronic products with the image capturing function are rising, the demand of miniaturized photographic lenses is gradually increased, and people pay more attention to improvement and innovation of the electronic products. The lens is widely applied to electronic products such as mobile phones, tablet personal computers, unmanned aerial vehicles, computers and the like in life, improvement of various scientific technologies is promoted, and requirements of people on mobile phone shooting are increased so as to meet shooting requirements of people. In the use process of the current mobile phone camera, high-definition imaging cannot be realized because the wide angle of the optical system is not high enough, so that the imaging effect cannot be close to that of a shot object, and the quality, resolution and definition of a shot picture are poor. Disclosure of utility model The utility model aims to solve the problem that the current wide angle of a mobile phone camera is not high enough, so that the quality, resolution and definition of a shot picture are poor. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The wide-angle high-definition camera comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens, wherein the first lens, the second lens, the third lens, the fourth lens and the fifth lens are aspheric, the wide-angle high-definition camera further comprises a diaphragm arranged between the second lens and the third lens, the first lens and the fifth lens are provided with negative refractive power, the second lens, the third lens and the fourth lens are provided with positive refractive power, the object side surfaces of the first lens and the fifth lens are convex at the paraxial region, the object side surface of the second lens is convex, the image side surface of the third lens is convex, the object side surface of the fourth lens is concave at the paraxial region, the image side surface of the fourth lens is convex at the paraxial region, the wide-angle high-definition camera satisfies the following relational expressions of 1.0620 f/R5 1.0680,2.23< V4/V2.53, the fourth lens is a high-definition lens with a focal length of V5, and the fourth lens is a high-definition lens with a focal length of V5. In order to select the range between the distance from the image side surface of the second lens to the object side surface of the third lens on the optical axis and the focal length of the high-definition optical imaging lens, preferably, the wide-angle high-definition camera satisfies the following relation of 2.15< (d23+ct3)/f <2.18, wherein D23 is the distance from the image side surface of the second lens to the object side surface of the third lens on the optical axis, and CT3 is the thickness of the third lens on the optical axis. In order to select the range between the focal length of the high-definition optical imaging lens and the distance between the first lens and the imaging surface on the optical axis, preferably, the wide-angle high-definition camera satisfies the following relation of 0.15< f/TL <0.23, wherein TL is the distance between the first lens and the imaging surface on the optical axis. In order to select the range between the distance from the object side surface of the first lens element to the image side surface of the fifth lens element on the optical axis and the distance between the first lens element and the second lens element on the optical axis, it is preferable that the wide-angle high-definition camera lens assembly satisfies the following relationship of 4.61< TD/T12<4.66, wherein TD is the distance from the object side surface of the first lens element to the image side surface of the fifth lens element on the optical axis, and T12 is the distance between the first lens element and the second lens element on the optical axis. In order to select the range of the total optical length of the photographing optical lens and the focal length of the high-definition optical imaging lens, preferably, the wide-angle high-definition camera satisfies the following relation of 5.22< TTL/f <5.36, wherein TTL is the total optical length of the photographing optical lens. In order to select the range of the air gap between the image side surface of the third lens element and the object side surface of the fourth lens element on the optical axis and the sum of the air gaps between the adjacent lens elements of the first lens element and the fifth lens element, it is preferable that the wide-angle high-definition camera satisfies the following relation 1.00< T34/AAT <1.56, wherein T34 is the air gap between the image side surface of the third lens element and the object side su