CN-224216936-U - Vehicle-mounted lens

CN224216936UCN 224216936 UCN224216936 UCN 224216936UCN-224216936-U

Abstract

The utility model discloses a vehicle-mounted lens. The vehicle-mounted lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from an object plane to an image plane along an optical axis, wherein the first lens has negative focal power, the second lens has negative focal power, the third lens has positive focal power, the fourth lens has positive focal power, the fifth lens and the sixth lens are glued and fixed to form a gluing lens group, and the gluing lens group has positive focal power or negative focal power. Through the relative position and the focal power of each lens of rational design, guarantee that on-vehicle camera lens satisfies high image quality, low aberration's imaging demand under the circumstances of small volume.

Inventors

Du Zirun
HE MINGKE
XUE LONGTAO
TIAN JIJUN
LI HANDONG
WANG DAN

Assignees

东莞市宇瞳玖洲光学有限公司

Dates

Publication Date: 20260508
Application Date: 20250514

Claims (10)

1. The vehicle-mounted lens is characterized by comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from an object plane to an image plane along an optical axis; The first lens has negative focal power, the second lens has negative focal power, the third lens has positive focal power, the fourth lens has positive focal power, and the fifth lens and the sixth lens are glued and fixed to form a glued lens group, wherein the glued lens group has positive focal power or negative focal power.
2. The vehicle-mounted lens according to claim 1, wherein a surface of a lens adjacent to an object plane is an object side surface, a surface of a lens adjacent to an image plane is an image side surface, the image side surface of the first lens is convex toward the object plane, the object side surface of the second lens is convex toward the object plane, the image side surface of the second lens is convex toward the object plane, the object side surface of the third lens is convex toward the object plane, the image side surface of the fourth lens is concave toward the object plane, the object side surface of the fifth lens is convex toward the object plane, the image side surface of the fifth lens is concave toward the object plane, the object side surface of the sixth lens is concave toward the object plane, and the image side surface of the sixth lens is concave toward the object plane.
3. The vehicle lens of claim 1, wherein the first lens is a meniscus lens.
4. The vehicle-mounted lens according to claim 1, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are all glass spherical lenses.
5. The vehicle-mounted lens according to claim 1, wherein the refractive index of the first lens is Nd1, the refractive index of the second lens is Nd2, the refractive index of the third lens is Nd3, the refractive index of the fourth lens is Nd4, the refractive index of the fifth lens is Nd5, and the refractive index of the sixth lens is Nd6, wherein Nd1 is 1.47-2.01, nd2 is 1.39-1.69, and Nd3 is 1.82-2.05; 1.67≤Nd4≤1.92;1.49≤Nd5≤1.72;1.85≤Nd6≤2.00。
6. The vehicle-mounted lens according to claim 1, wherein the abbe number of the first lens is Vd1, the abbe number of the second lens is Vd2, the abbe number of the third lens is Vd3, the abbe number of the fourth lens is Vd4, the abbe number of the fifth lens is Vd5, and the abbe number of the sixth lens is Vd6, wherein 34.30≤Vd1≤64.00, 60.30≤Vd2≤72.40, 16.20≤Vd3≤26.40, 45.60≤Vd4≤50.60, 62.40≤Vd5≤69.30, 16.90≤Vd6≤ 33.30.
7. The vehicle-mounted lens of claim 1, wherein a distance from an optical axis center of an image side of the sixth lens element to the image plane is BFL, and a distance from an optical axis center of an object side of the first lens element to the image plane is TTL, wherein BFL/TTL is greater than or equal to 0.284.
8. The vehicle lens according to claim 1, wherein the field angle of the vehicle lens is FOV, and the distance from the center of the optical axis of the object side surface of the first lens to the image plane is TTL, wherein FOV/TTL is not less than 4.75.
9. The in-vehicle lens according to claim 1, further comprising a diaphragm; The diaphragm is located in an optical path between the third lens and the fourth lens.
10. The in-vehicle lens according to claim 1, further comprising an optical filter; the filter is positioned on one side of the image side surface of the sixth lens.

Description

Vehicle-mounted lens Technical Field The utility model relates to the technical field of optical lenses, in particular to a vehicle-mounted lens. Background The automobile intellectualization is one of the important directions of development in the future industry, and as an eye of the automobile intellectualization, the on-board lens provides contents and services for a driver in the driving process, so that the driving safety, comfort and convenience are improved. The on-vehicle side view lens is taken as an important component part of the on-vehicle lens, and the optical performance is very focused, so that the on-vehicle side view lens is always advanced towards high precision, high adaptability, miniaturization and intellectualization. Under the design trend of realizing miniaturization, the existing vehicle-mounted camera has larger overall aberration of the lens, and is not beneficial to realizing high-quality imaging. Disclosure of utility model The utility model provides a vehicle-mounted lens which can meet the imaging requirements of low aberration and high image quality on the premise of small volume. The utility model provides a vehicle-mounted lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from an object plane to an image plane along an optical axis; The first lens has negative focal power, the second lens has negative focal power, the third lens has positive focal power, the fourth lens has positive focal power, and the fifth lens and the sixth lens are glued and fixed to form a glued lens group, wherein the glued lens group has positive focal power or negative focal power. Optionally, the surface of the lens adjacent to the object plane is an object side surface, the surface of the lens adjacent to the image plane is an image side surface, the image side surface of the first lens is convex towards the object plane, the object side surface of the second lens is convex towards the object plane, the image side surface of the second lens is convex towards the object plane, the object side surface of the third lens is convex towards the object plane, the image side surface of the fourth lens is concave towards the object plane, the object side surface of the fifth lens is convex towards the object plane, the image side surface of the fifth lens is concave towards the object plane, the object side surface of the sixth lens is concave towards the object plane, and the image side surface of the sixth lens is concave towards the object plane. Optionally, the first lens is a meniscus lens. Optionally, the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are all glass spherical lenses. Optionally, the refractive index of the first lens is Nd1, the refractive index of the second lens is Nd2, the refractive index of the third lens is Nd3, the refractive index of the fourth lens is Nd4, the refractive index of the fifth lens is Nd5, the refractive index of the sixth lens is Nd6, wherein Nd1 is more than or equal to 1.47 and less than or equal to 2.01, nd2 is more than or equal to 1.39 and less than or equal to 1.69, nd3 is more than or equal to 1.82 and less than or equal to 2.05, nd4 is more than or equal to 1.67 and less than or equal to 1.92, nd5 is more than or equal to 1.72, nd6 is more than or equal to 1.85 and less than or equal to 2.00. Optionally, the Abbe number of the first lens is Vd1, the Abbe number of the second lens is Vd2, the Abbe number of the third lens is Vd3, the Abbe number of the fourth lens is Vd4, the Abbe number of the fifth lens is Vd5, the Abbe number of the sixth lens is Vd6, wherein Vd1 is not less than 34.30 and not more than 64.00, vd2 is not less than 60.30 and not more than 72.40, vd3 is not more than 16.20 and not more than 26.40, vd4 is not more than 45.60 and not more than 50.60, vd5 is not more than 62.40 and not more than 69.30, and Vd6 is not more than 16.90 and not more than 33.30. Optionally, a distance from an optical axis center of an image side surface of the sixth lens element to the image plane is BFL, and a distance from an optical axis center of an object side surface of the first lens element to the image plane is TTL, where BFL/TTL is greater than or equal to 0.284. Optionally, the field angle of the vehicle-mounted lens is FOV, and the distance from the center of the optical axis of the object side surface of the first lens to the image plane is TTL, wherein FOV/TTL is more than or equal to 4.75. Optionally, the vehicle-mounted lens further comprises a diaphragm; The diaphragm is located in an optical path between the third lens and the fourth lens. Optionally, the vehicle-mounted lens further comprises an optical filter; the filter is positioned on one side of the image side surface of the sixth lens. According to the technical scheme, the vehicle-mounted lens comprises a first lens, a second lens, a third lens,