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Optical imaging lens and imaging equipment

A technology of optical imaging lens and imaging surface, applied in the field of imaging lens

Active Publication Date: 2021-04-23
JIANGXI LIANCHUANG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most lenses on the existing market cannot meet the above requirements well

Method used

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  • Optical imaging lens and imaging equipment
  • Optical imaging lens and imaging equipment
  • Optical imaging lens and imaging equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0081] see figure 1 , a structural schematic diagram of an optical imaging lens 100 provided in the first embodiment of the present invention, which includes in sequence from the object side to the imaging surface: a first lens L1, a second lens L2, a stop ST, a third lens L3, and a fourth lens L4, fifth lens L5, sixth lens L6, filter G1.

[0082] The first lens L1 has negative 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 concave surface;

[0083] The second lens L2 has a positive refractive power, and both the object side S3 and the image side S4 of the second lens are convex;

[0084] The third lens L3 has positive refractive power, the object side S5 of the third lens is concave, and the image side S6 of the third lens is convex;

[0085] The fourth lens L4 has a negative refractive power, and the object side S7 and the image side of the fourth lens are concave;

[0086] The fifth lens L5 has pos...

no. 2 example

[0101] see Figure 6 , is a schematic structural diagram of the optical imaging lens 200 provided by the second embodiment. The optical imaging lens 200 among the present embodiment is roughly the same as the optical imaging lens 100 among the first embodiment, the difference is that: the image side S4 of the second lens of the optical imaging lens 200 among the present embodiment is a concave surface, and the cemented lens The fourth lens L4 in the group is a biconvex lens with positive refractive power, and the fifth lens L5 is a biconcave lens with negative refractive power, and the radius of curvature and material selection of each lens are different. The relevant parameters of each lens are shown in Table 3 shown.

[0102] table 3

[0103]

[0104]

[0105] The parameters of each lens aspheric surface in this embodiment are shown in Table 4.

[0106] Table 4

[0107] face number K B C D E F S10 -0.848113 4.7480E-04 -1.3887E-05 2.0417E-06 -...

no. 3 example

[0119] see Figure 11 , which is a schematic structural diagram of the imaging device 300 provided in the third embodiment of the present invention, the imaging device 300 includes an imaging element 310 and the optical imaging lens (such as the optical imaging lens 100 ) in any of the above embodiments. The imaging element 310 may be a CMOS (Complementary Metal Oxide Semiconductor, Complementary Metal Oxide Semiconductor) image sensor, and may also be a CCD (Charge Coupled Device, Charge Coupled Device) image sensor.

[0120] The imaging device 300 may be a vehicle monitoring device, a drone, a panoramic camera, or any other form of electronic device loaded with an optical imaging lens.

[0121] The imaging device 300 provided in this embodiment includes the optical imaging lens in any of the above embodiments. Since the optical imaging lens has the advantages of high pixels, small volume, low distortion and good thermal stability, the imaging device 300 has high pixels, It ...

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Abstract

The invention discloses an optical imaging lens and imaging equipment, and the optical imaging lens sequentially comprises, from an object side to an imaging surface along an optical axis: a first lens with negative focal power, wherein the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; a second lens with positive focal power, wherein the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a convex surface or a concave surface; a diaphragm; a third lens with positive focal power, wherein 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; a cemented lens group with positive focal power, wherein the cemented lens group is formed by bonding a fourth lens and a fifth lens; a sixth lens with positive focal power, wherein the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a concave surface; an optical filter; the first lens, the second lens, the third lens, the fourth lens and the fifth lens are all glass spherical lenses, and the sixth lens is a glass aspheric lens. The optical imaging lens can correct aberration of an edge field of view, and provides a higher-quality imaging effect.

Description

technical field [0001] The invention relates to the technical field of imaging lenses, in particular to an optical imaging lens and imaging equipment. Background technique [0002] At present, with the development of automatic driving assistance systems and the intensification of market demand, many countries have successively promulgated relevant policies to promote the development of automatic driving, which has greatly promoted the development of related industries of automatic driving. Key components have also ushered in rapid development. [0003] Due to the complex and changeable application environment of automobiles and the extremely high safety performance requirements, higher requirements are put forward for the camera lens installed in the automatic driving assistance system. Integrated in the vehicle system; on the other hand, the lens needs to have good thermal stability, which can maintain good resolution in high and low temperature environments; at the same t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18G02B1/00
CPCG02B13/18G02B1/00
Inventor 王昆吴愉魏文哲王克民曾吉勇
Owner JIANGXI LIANCHUANG ELECTRONICS CO LTD
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