Optical lens and imaging device

An optical lens and imaging surface technology, applied in the field of imaging lenses, can solve the problem of not being able to meet the design requirements of long focal length, high pixel, and miniaturization, and achieve the effect of long focal length, high pixel, and compact structure of the lens.

Active Publication Date: 2022-03-25
JIANGXI LIANYI OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, although the common five-element optical lens already has good optical performance, it cannot better meet the design requirements of long focal length, high pixels, and miniaturization.

Method used

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  • Optical lens and imaging device
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  • Optical lens and imaging device

Examples

Experimental program
Comparison scheme
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no. 1 example

[0070] Such as figure 1 As shown, it is a schematic structural diagram of the optical lens 100 provided by the first embodiment of the present invention. The optical lens 100 includes in sequence from the object side to the imaging surface S13 along the optical axis: a stop ST, a first lens L1, a second lens L2, The third lens L3, the fourth lens L4, the fifth lens L5, and the filter G1.

[0071] Wherein, the first lens L1 has positive refractive power, the object side S1 of the first lens is a convex surface, and the image side S2 of the first lens is a convex surface;

[0072] The second lens L2 has negative refractive power, the object side S3 of the second lens is concave at the near optical axis, and the image side S4 of the second lens is concave;

[0073] The third lens L3 has a negative refractive power, the object side S5 of the third lens is a convex surface, and the image side S6 of the third lens is a concave surface;

[0074] The fourth lens L4 has positive refr...

no. 2 example

[0088] see Figure 5 The structure of the optical lens 200 provided by the second embodiment of the present invention is substantially the same as that of the optical lens 100 in the first embodiment, except that the image side of the first lens L1 is concave.

[0089] The relevant parameters of each lens in the optical lens 200 provided in this embodiment are shown in Table 3.

[0090] table 3

[0091]

[0092] The surface coefficients of each aspheric surface of the optical lens 200 in this embodiment are shown in Table 4.

[0093] Table 4

[0094]

[0095] In this embodiment, the distortion curve, the axial chromatic aberration curve and the vertical axis chromatic aberration curve of the optical lens 200 are respectively as follows Figure 6 , Figure 7 and Figure 8 shown.

[0096] Figure 6 The distortion curve of shows the distortion at different image heights on the imaging plane. From Figure 6 It can be seen that the optical distortion is controlled wi...

no. 3 example

[0100] see Figure 9 The structure of the optical lens 300 provided by the third embodiment of the present invention is substantially the same as that of the optical lens 100 in the first embodiment, except that the image side of the first lens L1 is concave at the near optical axis.

[0101] The relevant parameters of each lens in the optical lens 300 provided in this embodiment are shown in Table 5.

[0102] table 5

[0103]

[0104] Table 6 shows the surface coefficients of each aspheric surface of the optical lens 300 in this embodiment.

[0105] Table 6

[0106]

[0107] In this embodiment, the distortion curve, the axial chromatic aberration curve and the vertical axis chromatic aberration curve of the optical lens 300 are respectively as follows Figure 10 , Figure 11 and Figure 12 shown.

[0108] Figure 10 The distortion curve of shows the distortion at different image heights on the imaging surface. From Figure 10 It can be seen from the figure that...

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Abstract

The invention discloses an optical lens and imaging equipment. The optical lens sequentially comprises a diaphragm, a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an imaging surface along an optical axis, the first lens has positive focal power, and the object side surface of the first lens is a convex surface; the second lens has negative focal power, the object side surface of the second lens is a concave surface near the optical axis, and the image side surface is a concave surface; the third lens has negative focal power, the object side surface of the third lens is a convex surface, and the image side surface is a concave surface; the fourth lens has positive focal power, the object side surface of the fourth lens is a concave surface, and the image side surface is a convex surface; the fifth lens has negative focal power, the object side surface of the fifth lens is a concave surface near the optical axis, and the image side surface of the fifth lens is a convex surface; the first lens, the second lens, the third lens, the fourth lens and the fifth lens are all aspherical lenses. The optical lens has the advantages of long focal length, high pixel and miniaturization.

Description

technical field [0001] The invention relates to the technical field of imaging lenses, in particular to an optical lens and imaging equipment. Background technique [0002] At present, with the popularization of portable electronic devices (such as smartphones and cameras), coupled with the popularity of social networking, video, and live broadcast software, people are more and more fond of photography, and camera lenses have become standard equipment for electronic devices. , The camera lens has even become the first indicator that consumers consider when purchasing electronic equipment. [0003] With the continuous development of mobile information technology, portable electronic devices such as mobile phones are also developing in the direction of thinner and lighter, full-screen, ultra-high-definition imaging, etc., which puts forward higher requirements for camera lenses mounted on portable electronic devices. [0004] However, although the common five-element optical ...

Claims

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Application Information

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IPC IPC(8): G02B13/18
CPCG02B13/0045
Inventor谢雨辰于笑枝曾昊杰
OwnerJIANGXI LIANYI OPTICS CO LTD