CN-122018117-A - Optical lens and electronic device

CN122018117ACN 122018117 ACN122018117 ACN 122018117ACN-122018117-A

Abstract

The application discloses an optical lens and electronic equipment. The optical lens sequentially comprises a first lens with negative focal power, a second lens with focal power, a third lens with positive focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with focal power, a seventh lens with focal power, an eighth lens with positive focal power, a ninth lens with positive focal power, wherein the focal power of the fourth lens is opposite to that of the fifth lens, the focal power of the fifth lens is opposite to that of the sixth lens, or the focal power of the sixth lens is opposite to that of the seventh lens, the focal power of the seventh lens is opposite to that of the eighth lens, the number of lenses with focal power in the optical lens is nine, and the optical lens meets that (T12+T23+T34)/TL is less than or equal to 0.703.

Inventors

LANG HAITAO
CHEN RUXIA
LI XIANG
DUAN YING
Guan Boren
YANG GUANGRUI
ZHENG TIANBO
FAN JIAN
ZHANG HETENG

Assignees

宁波舜宇车载光学技术有限公司

Dates

Publication Date: 20260512
Application Date: 20251229

Claims (10)

1. An optical lens, comprising, in order from a first side to a second side along an optical axis: a first lens having negative optical power, the second side of which is concave; a second lens having optical power; A third lens having positive optical power; a fourth lens having optical power; A fifth lens having optical power; a sixth lens having optical power; a seventh lens having optical power; An eighth lens having positive optical power; A ninth lens having positive optical power; Wherein the fourth lens has opposite focal power to the fifth lens, or the fifth lens has opposite focal power to the sixth lens, or the sixth lens has opposite focal power to the seventh lens, or the seventh lens has opposite focal power to the eighth lens; the number of lenses with focal power in the optical lens is nine; the optical lens satisfies that (T12+T23+T34)/TL is more than or equal to 0.244 and less than or equal to 0.703; wherein T12 is an air space between the first lens and the second lens, T23 is an air space between the second lens and the third lens, T34 is an air space between the third lens and the fourth lens, and TL is a lens group length of the optical lens.
2. The optical lens of claim 1, wherein the optical lens meets at least one of: The first side surface of the first lens is a convex surface, or the first side surface of the first lens is a concave surface; The second lens is provided with negative focal power, the first side surface of the second lens is concave, the second lens is provided with negative focal power, the first side surface of the second lens is plane, the second side surface of the second lens is concave, the second lens is provided with negative focal power, the first side surface of the second lens is convex, the second side surface of the second lens is concave, the second lens is provided with negative focal power, the first side surface of the second lens is concave, the second side surface of the second lens is plane, or the second lens is provided with negative focal power, the first side surface of the second lens is concave, the second side surface of the second lens is convex, or the second lens is provided with positive focal power, the first side surface of the second lens is concave, and the second side surface of the second lens is convex; The first side surface of the third lens is a convex surface, the second side surface of the third lens is a convex surface, or the first side surface of the third lens is a plane, the second side surface of the third lens is a convex surface, or the first side surface of the third lens is a concave surface, and the second side surface of the third lens is a convex surface, or the first side surface of the third lens is a convex surface, the second side surface of the third lens is a plane, or the first side surface of the third lens is a convex surface, and the second side surface of the third lens is a concave surface; The fourth lens is provided with negative focal power, wherein the first side surface of the fourth lens is concave, the second side surface of the fourth lens is concave, the fourth lens is provided with negative focal power, the first side surface of the fourth lens is convex, the second side surface of the fourth lens is concave, the fourth lens is provided with negative focal power, the first side surface of the fourth lens is concave, the second side surface of the fourth lens is plane, the fourth lens is provided with negative focal power, the first side surface of the fourth lens is concave, the second side surface of the fourth lens is convex, or the fourth lens is provided with positive focal power, the first side surface of the fourth lens is convex, the second side surface of the fourth lens is convex, or the fourth lens is provided with positive focal power, the first side surface of the fourth lens is concave, and the second side surface of the fourth lens is convex; The fifth lens has positive focal power, the first side surface of the fifth lens is a convex surface, the second side surface of the fifth lens is a convex surface, or the fifth lens has positive focal power, the first side surface of the fifth lens is a plane, the second side surface of the fifth lens is a convex surface, or the fifth lens has positive focal power, the first side surface of the fifth lens is a concave surface, the second side surface of the fifth lens is a convex surface, or the fifth lens has positive focal power, the first side surface of the fifth lens is a convex surface, the second side surface of the fifth lens is a concave surface, or the fifth lens has negative focal power, the first side surface of the fifth lens is a concave surface, the second side surface of the fifth lens is a convex surface, or the fifth lens has negative focal power, the first side surface of the fifth lens is a convex surface, the fifth side surface is a concave surface, and the fifth side surface is a concave surface; The first side of the sixth lens is a convex surface, the second side of the sixth lens is a convex surface, or the sixth lens is a positive power, the first side of the sixth lens is a concave surface, and the second side of the sixth lens is a convex surface, or the sixth lens is a negative power, the first side of the sixth lens is a concave surface, and the second side of the sixth lens is a concave surface, or the sixth lens is a negative power, the first side of the sixth lens is a concave surface, and the second side of the sixth lens is a convex surface; The seventh lens has negative focal power, the first side surface of the seventh lens is a concave surface, the second side surface of the seventh lens is a concave surface, or the seventh lens has negative focal power, the first side surface of the seventh lens is a concave surface, the second side surface of the seventh lens is a convex surface, or the seventh lens has negative focal power, the first side surface of the seventh lens is a concave surface, the second side surface of the seventh lens is a plane, or the seventh lens has negative focal power, the first side surface of the seventh lens is a convex surface, the second side surface of the seventh lens is a concave surface, or the seventh lens has positive focal power, the first side surface of the seventh lens is a convex surface, and the second side surface of the seventh lens is a convex surface; The first side surface of the eighth lens is a convex surface, the second side surface of the eighth lens is a convex surface, or the first side surface of the eighth lens is a concave surface, and the second side surface of the eighth lens is a convex surface; the first side surface of the ninth lens is a convex surface, the second side surface of the ninth lens is a convex surface, or the first side surface of the ninth lens is a plane, the second side surface of the ninth lens is a convex surface, or the first side surface of the ninth lens is a concave surface, and the second side surface of the ninth lens is a convex surface.
3. The optical lens according to claim 1 or 2, wherein the optical lens satisfies at least one of the following relations: 0.094≤F/TTL≤0.205、1.435≤BFL/F≤3.18、44.746°≤(FOV×F)/H≤65.134°、0.133°≤TTL/H/FOV≤0.313°、3.329≤TTL/DMAX≤6.188、0.382≤(F*θ)/D≤0.802、0.027°≤D/H/FOV≤0.049°、0.063≤D/H/F*mm≤0.202、0.829≤F/H≤1.904、1.7≤F/ENPD≤2.99、0.077≤F/ENPD/D*mm≤0.183、0.627≤DST/F≤1.332 Or 0.818 < (H/2)/(F tan (θ/2)) < 1.173; wherein F is the whole set of focal length values of the optical lens, TTL is the total optical length of the optical lens, BFL is the optical back focal length of the optical lens, FOV is the maximum field angle of the optical lens, H is the image height corresponding to the maximum field angle of the optical lens, DMAX is the maximum value of the maximum aperture of all lenses in the optical lens, θ is the radian value of the maximum field angle of the optical lens, D is the maximum aperture of the first side of the first lens corresponding to the maximum field angle of the optical lens, ENPD is the entrance pupil diameter of the optical lens, and DST is the effective aperture of the diaphragm of the optical lens.
4. The optical lens according to claim 1 or 2, wherein the optical lens satisfies at least one of the following relations: -11.583 < F1/F < 1.247 > or 0.054 < |F1/F2| < 12.962 >; Wherein F is a focal length value of the whole group of the optical lens, F1 is a focal length value of the first lens, and F2 is a focal length value of the second lens.
5. The optical lens according to claim 1 or 2, wherein the optical lens satisfies at least one of the following relations: The content of F2/F is more than or equal to 0.76 and less than or equal to 32.015 or more than or equal to 0.399 and less than or equal to 3.908; Wherein F is a focal length value of the whole group of the optical lens, F2 is a focal length value of the second lens, and F3 is a focal length value of the third lens.
6. The optical lens according to claim 1 or 2, wherein the optical lens satisfies at least one of the following relations: F3/F is more than or equal to 0.995 and less than or equal to 9.422 or F3/F4 is more than or equal to 0.071 and less than or equal to 4.001; wherein F is a focal length value of the whole group of the optical lens, F3 is a focal length value of the third lens, and F4 is a focal length value of the fourth lens.
7. The optical lens according to claim 1 or 2, wherein the optical lens satisfies at least one of the following relations: 1.087 +.F4/F23.408, 0.944 +.F5/F10.681, 0.279 +.F4/F9 +.10.14, 0.632 +.F4/F5 +.8.09, 0.396 +.F5/F6 +.4.03 or 1.137 +.R 7R 8)/F4; Wherein F is the focal length of the optical lens, F4 is the focal length of the fourth lens, F5 is the focal length of the fifth lens, F9 is the focal length of the ninth lens, F6 is the focal length of the sixth lens, R7 is the central radius of curvature of the first side of the fourth lens, and R8 is the central radius of curvature of the second side of the fourth lens.
8. The optical lens according to claim 1 or 2, wherein the optical lens satisfies at least one of the following relations: 0.841≤3.23 of |F6/F|, 0.639≤ 8.233 of |F7/F|, 1.77≤ 4.497 of F8/F, 0.187≤2.49 of |F6/F7|or0.307≤ |F7/F8| 3.717; Wherein F is the focal length of the optical lens, F6 is the focal length of the sixth lens, F7 is the focal length of the seventh lens, and F8 is the focal length of the eighth lens.
9. The optical lens according to claim 1 or 2, wherein the optical lens satisfies at least one of the following relations: F9/F is more than or equal to 1.901 and less than or equal to 4.993, F8/F9 is more than or equal to 0.498 and less than or equal to 1.45 or 27.333 and less than or equal to |R17, R18/F9|; Wherein F is a focal length value of the whole group of the optical lens, F9 is a focal length value of the ninth lens, F8 is a focal length value of the eighth lens, R17 is a central radius of curvature of the first side surface of the ninth lens, and R18 is a central radius of curvature of the second side surface of the ninth lens.
10. An electronic device, comprising: The optical lens according to any one of claims 1 to 9, and At least one of an imaging element and a light source; The imaging element is used for converting an optical image or optical information formed by the optical lens into an electric signal; The light source is positioned on the second side of the optical lens, and light rays emitted by the light source are projected to the first side of the optical lens after passing through the optical lens, and an image or an illumination area is formed on the first side of the optical lens.

Description

Optical lens and electronic device Technical Field The present application relates to the field of optical elements, and more particularly, to an optical lens and an electronic device. Background In recent years, automobile assisted driving technology is increasingly popular with users, and accordingly, there is an increasing demand for on-vehicle lenses for acquiring external information of automobiles, which are optical lenses mounted on automobiles to realize various functions, and which may include, for example, an inner view lens, a rear view lens, a front view lens, a side view lens, a ring view lens, a projection headlight lens, and the like. High resolution is a core competing quality of vehicular projection headlight lenses, however, with the use of large chips, higher demands are placed on the resolution capability of optical lenses that can be used as vehicular lenses. The inventor of the application discovers that the projection lens in the vehicle cabin has higher requirement on imaging, but the existing projection lens in the vehicle cabin cannot meet the design requirements on performances such as distortion, chromatic aberration and volume. Disclosure of Invention The first aspect of the present application provides an optical lens comprising, in order from a first side to a second side along an optical axis, a first lens having negative optical power, a second lens having positive optical power, a third lens having positive optical power, a fourth lens having optical power, a fifth lens having optical power, a sixth lens having optical power, a seventh lens having optical power, an eighth lens having positive optical power, a ninth lens having positive optical power, wherein the fourth lens has optical power opposite to that of the fifth lens, or the fifth lens has optical power opposite to that of the sixth lens, or the sixth lens has optical power opposite to that of the seventh lens, or the seventh lens has optical power opposite to that of the eighth lens, and the number of lenses having optical power in the optical lens is nine, and the optical lens satisfies that (T12+T23+T34)/TL≤0.244. T12 is an air gap between the first lens and the second lens, T23 is an air gap between the second lens and the third lens, T34 is an air gap between the third lens and the fourth lens, and TL is a lens group length of the optical lens. A second aspect of the present application provides an electronic device including the optical lens of the above exemplary embodiment, and at least one of an imaging element and a light source, wherein the imaging element is configured to convert an optical image or optical information formed by the optical lens into an electrical signal, the light source is located at a second side of the optical lens, and light emitted by the light source is projected to a first side of the optical lens after passing through the optical lens, and forms an image or an illuminated area at the first side of the optical lens. One example is that the first side of the first lens is convex, or that the first side of the first lens is concave. One example is that the second lens has a negative power, the first side of the second lens is concave, the second side of the second lens is concave, or the second lens has a negative power, the first side of the second lens is planar, the second side of the second lens is concave, or the second lens has a negative power, the first side of the second lens is convex, the second side of the second lens is concave, or the second lens has a negative power, the first side of the second lens is concave, the second side of the second lens is planar, or the second lens has a negative power, the first side of the second lens is concave, the second side of the second lens is convex, or the second lens has a positive power, the first side of the second lens is concave, and the second side of the second lens is convex. One example is that the first side of the third lens is convex, the second side of the third lens is convex, or the first side of the third lens is planar, the second side of the third lens is convex, or the first side of the third lens is concave, the second side of the third lens is convex, or the first side of the third lens is convex, the second side of the third lens is planar, or the first side of the third lens is convex, and the second side of the third lens is concave. One example is that the fourth lens has negative power, the first side of the fourth lens is concave, the second side of the fourth lens is concave, or the fourth lens has negative power, the first side of the fourth lens is convex, the second side of the fourth lens is concave, or the fourth lens has negative power, the first side of the fourth lens is concave, the second side of the fourth lens is plane, or the fourth lens has negative power, the first side of the fourth lens is concave, the second side of the fourth lens is convex, or the fourth lens has positive power, t