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Optical imaging lens

An optical imaging lens and lens technology, applied in the field of imaging lens, can solve the problems of increasing production cost, unfavorable popularization and application, etc., and achieve the effect of low production cost, high imaging quality and good imaging

Active Publication Date: 2022-07-08
JIANGXI LIANCHUANG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For traditional high-quality automotive lenses, in order to improve the imaging quality, adding lenses or using glass aspheric surfaces will greatly increase production costs, which is not conducive to market promotion and application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0070] see figure 1 , which is a schematic structural diagram of the optical imaging lens 100 provided in the first embodiment of the present invention. The optical imaging lens 100 sequentially includes: a first lens L1, a second lens L2, an optical lens 100 along the optical axis from the object side to the imaging surface S16 Stop ST, third lens L3, fourth lens L4, fifth lens L5, sixth lens L6, filter G1, and protective glass G2.

[0071] Specifically, the first lens L1 has negative refractive power, and both the object side S1 and the image side S2 of the first lens are concave;

[0072] The second lens L2 has positive refractive power, and both the object side S3 and the image side S4 of the second lens are convex;

[0073] The third lens L3 has positive refractive power, and both the object side S5 and the image side of the third lens are convex;

[0074] The fourth lens L4 has negative refractive power, the object side of the fourth lens is concave, the image side S7 ...

no. 2 example

[0088] see Figure 4 , which is a schematic structural diagram of the optical imaging lens 200 provided in the second embodiment of the present invention. The optical imaging lens 200 in this embodiment is roughly the same as the optical imaging lens 100 in the first embodiment. The difference is that the optical imaging lens 200 The image side S11 of the sixth lens of the imaging lens 200 is a convex surface, and the related parameters of each lens are different from those of each lens of the optical imaging lens 100 in the first embodiment.

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

[0090] table 3

[0091]

[0092] Table 4 shows the surface shape coefficients of each aspherical surface of the optical imaging lens 200 in this embodiment.

[0093] Table 4

[0094]

[0095] The vertical-axis chromatic aberration curve diagram and the relative illuminance curve diagram of the optical ...

no. 3 example

[0097] see Figure 7 , which is a schematic structural diagram of the optical imaging lens 300 provided in the third embodiment of the present invention. The optical imaging lens 300 in this embodiment is roughly the same as the optical imaging lens 100 in the first embodiment. The difference is that the optical imaging lens 300 The image side S7 of the fourth lens of the imaging lens 300 is concave, and the related parameters of each lens are different from the related parameters of each lens of the optical imaging lens 100 in the first embodiment.

[0098] The relevant parameters of each lens in the optical imaging lens 300 provided in this embodiment are shown in Table 5.

[0099] table 5

[0100]

[0101] Table 6 shows the surface shape coefficients of each aspherical surface of the optical imaging lens 300 in this embodiment.

[0102] Table 6

[0103]

[0104] The vertical axis chromatic aberration curve diagram and the relative illuminance curve diagram of the o...

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Abstract

The invention discloses an optical imaging lens, and the lens sequentially comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with negative focal power, a fifth lens with negative focal power and a sixth lens with negative focal power from the object side to the image side along the optical axis, the object side surface and the image side surface of the second lens are convex surfaces; a diaphragm; the object side surface and the image side surface of the third lens are convex surfaces; the fourth lens has negative focal power, the object side surface of the fourth lens is a concave surface, and the third lens and the fourth lens form a balsaming lens; the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lens is a convex surface; and the sixth lens has positive focal power, and the object side surface of the sixth lens is a convex surface. The optical imaging lens has the advantages of low dispersion, high relative illumination and low production cost.

Description

technical field [0001] The present invention relates to the technical field of imaging lenses, in particular to an optical imaging lens. Background technique [0002] In recent years, with the vigorous development of the automotive industry, automation and in-vehicle monitoring and sensing systems have all begun to develop rapidly, and in-vehicle cameras, as a key component of automatic driving assistance systems, have also ushered in rapid development. The high image quality and reliability of in-vehicle lenses are increasingly being considered by car manufacturers. [0003] In today's increasingly high demand for automotive automation, car lenses are an indispensable medium for cars to obtain external environmental information, and the demand for quantity is also increasing. Reducing the cost of car lenses and improving imaging quality have become urgent needs of the automotive industry. For traditional high-quality car lenses, in order to improve the imaging quality, add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18G02B1/00G02B1/04
CPCG02B13/0045G02B1/00G02B1/041
Inventor 廖宝发魏文哲王克民
Owner JIANGXI LIANCHUANG ELECTRONICS CO LTD
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