Optical lens and imaging device including the optical lens

A technology of optical lens and optical length, applied in the field of lens, can solve the problems affecting the miniaturization of lens and so on

Active Publication Date: 2022-04-12
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in order to improve the resolution capability of the lens, six, seven or even more lens structures are generally used, but this will seriously affect the miniaturization of the lens

Method used

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  • Optical lens and imaging device including the optical lens
  • Optical lens and imaging device including the optical lens
  • Optical lens and imaging device including the optical lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] Refer to the following figure 1 An optical lens according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of the optical lens according to Embodiment 1 of the present application is shown.

[0102] Such as figure 1 As shown, the optical lens sequentially includes a first lens L1 , a second lens L2 , a third lens L3 and a fourth lens L4 along the optical axis from the object side to the image side.

[0103] The first lens L1 is a meniscus lens with negative refractive power, the object side S1 is concave, and the image side S2 is convex. The second lens L2 is a biconvex lens with positive refractive power, the object side S4 is convex, and the image side S5 is convex. The third lens L3 is a biconvex lens with positive refractive power, the object side S6 is convex, and the image side S7 is convex. The fourth lens L4 is a biconcave lens with negative refractive power, the object side S7 is concave, and the image side S8...

Embodiment 2

[0138] Refer to the following figure 2 An optical lens according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. figure 2 A schematic structural view of the optical lens according to Embodiment 2 of the present application is shown.

[0139] Such as figure 2 As shown, the optical lens sequentially includes a first lens L1 , a second lens L2 , a third lens L3 and a fourth lens L4 along the optical axis from the object side to the image side.

[0140] The first lens L1 is a biconcave lens with negative refractive power, the object side S1 is concave, and the image side S2 is concave. The second lens L2 is a biconvex lens with positive refractive power, the object side S4 is convex, and the image side S5 is convex. The third lens L3 is a biconvex lens with positive refractive power, the object side S6 is convex, and the image si...

Embodiment 3

[0172] Refer to the following image 3 An optical lens according to Embodiment 3 of the present application is described. image 3 A schematic structural diagram of an optical lens according to Embodiment 3 of the present application is shown.

[0173] Such as image 3 As shown, the optical lens sequentially includes a first lens L1 , a second lens L2 , a third lens L3 and a fourth lens L4 along the optical axis from the object side to the image side.

[0174] The first lens L1 is a meniscus lens with negative refractive power, the object side S1 is convex, and the image side S2 is concave. The second lens L2 is a biconvex lens with positive refractive power, the object side S4 is convex, and the image side S5 is convex. The third lens L3 is a biconvex lens with positive refractive power, the object side S6 is convex, and the image side S7 is convex. The fourth lens L4 is a biconcave lens with negative refractive power, the object side S7 is concave, and the image side S8 ...

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Abstract

The application discloses an optical lens and an imaging device including the optical lens. The optical lens includes in sequence from the object side to the image side along the optical axis: a first lens, a second lens, a third lens and a fourth lens. Wherein, the first lens has negative refractive power, and at least one of its object side and image side is concave; the second lens has positive refractive power, and its object side and image side are convex; the third lens has positive refractive power , its object side and image side are both convex; the fourth lens has negative power, its object side and image side are both concave.

Description

technical field [0001] The present application relates to the lens field, and more specifically, to an optical lens including four lenses and an imaging device including the optical lens. Background technique [0002] Autonomous driving is one of the key technologies to realize "intelligent transportation", and it is also an inevitable trend in the future development of the transportation field. Vehicle lens is currently one of the important components of automotive vision sensors, and its performance directly affects the safety of autonomous driving. Compared with ordinary optical lenses, automotive lenses not only have high resolution requirements, but also do not affect their use in harsh environments. At the same time, this type of optical lens needs to have a larger aperture to achieve clear recognition in low-light environments and adapt to different driving environments. [0003] At present, in order to improve the resolution capability of the lens, six, seven or ev...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0035
Inventor王东方马奥林
OwnerNINGBO SUNNY AUTOMOTIVE OPTECH