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Optical lens

An optical lens and lens technology, applied in the field of optical lens, can solve problems such as increase of lens aperture, influence of lens resolution, increase of lens volume and weight, etc.

Active Publication Date: 2021-10-15
NINGBO SUNNY AUTOMOTIVE OPTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As the resolution requirements for imaging devices (such as cameras) gradually increase, the corresponding chip size also increases, resulting in an increase in the overall size of the lens
At the same time, in some special applications, such as nighttime use of vehicle lenses, in order to improve the effect of lens nighttime use, it is usually necessary to increase the aperture of the lens, which will also lead to an increase in lens aperture
[0003] Usually, the resolution of the lens can be improved by increasing the number of lenses, but the volume and weight of the corresponding lens will increase, which is not conducive to the miniaturization of the lens and will increase the manufacturing cost
Under normal circumstances, in order to meet miniaturization, the resolution of the lens will be greatly affected when the total optical length of the lens is compressed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 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.

[0063] Such as figure 1 As shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens along the optical axis from the object side to the imaging side. Lens L7.

[0064] 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.

[0065] 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 meniscus lens with negative refractive power, the object side S5 is concave, and the image side S6 is convex. Wherein, the second lens L2 and the third lens L3 are...

Embodiment 2

[0085] 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.

[0086] Such as figure 2 As shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens along the optical axis from the object side to the imaging side. Lens L7.

[0087] 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.

[0088]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 meniscus lens with negativ...

Embodiment 3

[0104] Refer to the following image 3 An optical lens according to Embodiment 3 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. image 3 A schematic structural diagram of an optical lens according to Embodiment 3 of the present application is shown.

[0105] Such as image 3 As shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6 and a seventh lens along the optical axis from the object side to the imaging side. Lens L7.

[0106] 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.

[0107] 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 meniscus lens with negativ...

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Abstract

The present application discloses an optical lens. The optical lens may include: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in order from the object side to the image side along the optical axis. and seventh lens. Wherein, the first lens, the third lens and the sixth lens can all have negative refractive power; the second lens, the fourth lens, the fifth lens and the seventh lens can all have positive refractive power; The object side of the three lenses can be concave, and the image side can be convex; the object side and the image side of the second lens and the fifth lens can be convex; the object side and the image side of the sixth lens can be concave; and The object side of the seventh lens can be convex, and the image side can be concave.

Description

technical field [0001] The present application relates to an optical lens, and more particularly, the present application relates to an optical lens including seven lenses. Background technique [0002] As the resolution requirements for imaging devices (eg, cameras) gradually increase, the corresponding chip size also increases, resulting in an increase in the overall size of the lens. At the same time, in some special applications, such as the night use of vehicle lenses, in order to improve the effect of the lens at night, it is usually necessary to increase the aperture of the lens, which will also lead to an increase in the aperture of the lens. [0003] Generally, the resolution of the lens can be improved by increasing the number of lenses, but the volume and weight of the lens will increase correspondingly, which is not conducive to the miniaturization of the lens and will increase the manufacturing cost. Under normal circumstances, in order to meet the requirements...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00
CPCG02B13/0045
Inventor 姚波王东方谢前森
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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