Optical lens

An optical lens and optical total length technology, applied in the field of optical lenses, can solve the problems of difficult to increase the screen ratio, large head size, difficult to capture pictures, etc., and achieve the effect of good image quality and total length.

Active Publication Date: 2022-07-29
JIANGXI LIANYI OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large size of the head of the existing camera lens, it is difficult to increase the screen-to-body ratio, and the camera lens often has a small field of view, making it difficult to capture pictures in a large field of view, and cannot bring consumers a better experience. Visual experience

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0077] see figure 1 , which is a schematic structural diagram of the optical lens 100 provided in the first embodiment of the present invention. The optical lens 100 sequentially includes a first lens L1, a diaphragm ST, and a second lens L2 along the optical axis from the object side to the imaging surface S13. , the third lens L3, the fourth lens L4, the fifth lens L5 and the filter G1.

[0078] Wherein, the first lens L1 has a positive refractive power, and both the object side S1 and the image side S2 of the first lens are convex;

[0079] The second lens L2 has positive refractive power, the object side S3 of the second lens is concave, and the image side S4 of the second lens is convex;

[0080] The third lens L3 has negative refractive power, the object side S5 of the third lens is concave, and the image side S6 of the third lens is convex;

[0081] The fourth lens L4 has positive refractive power, the object side S7 of the fourth lens is convex at the near optical ax...

no. 2 example

[0093] see Figure 4 , which is a schematic structural diagram of the optical lens 200 provided in the second embodiment of the present invention. The optical lens 200 of this embodiment is substantially the same as the above-mentioned first embodiment, and the main difference is that the image side S2 of the first lens L1 It is concave at the near optical axis, the object side S3 of the second lens L2 is convex at the near optical axis, and the curvature radius, aspheric coefficient, thickness and material of each lens are different.

[0094] Specifically, the design parameters of the optical lens 200 provided in this embodiment are shown in Table 3.

[0095] table 3

[0096]

[0097] Table 4 shows the surface shape coefficients of each aspherical surface of the optical lens 200 in this embodiment.

[0098] Table 4

[0099]

[0100] Please refer to Figure 5 , Image 6 , which are the field curvature graph and the vertical axis chromatic aberration graph of the opt...

no. 3 example

[0102] like Figure 7 As shown, it is a schematic structural diagram of the optical lens 300 provided in this embodiment. The optical lens 300 of this embodiment is substantially the same as the above-mentioned first embodiment, except that the object side S1 of the first lens L1 is concave, and the second lens L1 is concave. The object side surface S3 of the lens L2 is a convex surface at the near optical axis, and the curvature radius, aspheric coefficient, thickness and material of each lens surface are different.

[0103] Specifically, the design parameters of the optical lens 300 provided in this embodiment are shown in Table 5.

[0104] table 5

[0105]

[0106] Table 6 shows the surface shape coefficients of each aspherical surface of the optical lens 300 in this embodiment.

[0107] Table 6

[0108]

[0109] Please refer to Figure 8 , Figure 9 , which are the field curvature graph and the vertical axis chromatic aberration graph of the optical lens 300, re...

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Abstract

The invention discloses an optical lens. The optical lens sequentially comprises a first lens, a second lens, a third lens and a fourth lens from an object side to an imaging surface along an optical axis, a diaphragm; the second lens has positive focal power, and the image side surface of the second lens is a convex surface; the third lens has negative focal power, the object side surface of the third lens is a concave surface, and the image side surface of the third lens is a convex surface; the fourth lens has positive focal power, the object side surface of the fourth lens is a convex surface near the optical axis, and the image side surface of the fourth lens is a convex surface near the optical axis; the fifth lens has positive focal power, the object side surface of the fifth lens is a convex surface near the optical axis, and the image side surface of the fifth lens is a concave surface near the optical axis; wherein the first lens to the fifth lens at least comprise one aspheric lens. The optical lens has the advantages of high pixel, large wide angle, total length and head miniaturization.

Description

technical field [0001] The present invention relates to the technical field of imaging lenses, in particular to an optical lens. Background technique [0002] With the rapid growth of the consumer electronics market, coupled with the popularity of social, video, and live broadcast software, people have higher and higher requirements for the imaging quality of camera lenses, and camera lenses have even become the primary consideration for consumers when purchasing electronic equipment. [0003] With the continuous development of mobile information technology, portable electronic devices such as smartphones are also developing in the direction of thinness, full screen, and ultra-high-definition imaging. The mobile phone industry has higher and higher requirements for screen-to-screen ratio. As a crucial component of mobile phones, the camera needs to reduce the size of its own head to increase the screen-to-screen ratio. At the same time, in order to provide users with high-q...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0015G02B13/0045G02B13/06G03B30/00
Inventor 章彬炜徐丽丽曾昊杰
Owner JIANGXI LIANYI OPTICS CO LTD
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