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Imaging lens group

A camera lens and lens technology, applied in the direction of optical components, optics, instruments, etc., can solve the problems of unfavorable shooting of distant objects, lack of design freedom, difficulty in meeting the needs of high imaging performance, etc., to achieve small module size and high imaging performance Good quality and long effective focal length

Active Publication Date: 2020-06-19
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to meet the miniaturization, it is necessary to reduce the number of lenses of the imaging lens as much as possible, but the resulting lack of design freedom will make it difficult to meet the market demand for high imaging performance
Moreover, in order to obtain wide-angle images, the current mainstream camera lenses use wide-angle optical systems, but it is not conducive to shooting distant objects and cannot obtain clear images

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] First refer to Figure 1 to Figure 5 An imaging lens group according to Embodiment 1 of the present application will be described.

[0089] figure 1 It is a schematic diagram showing the structure of the imaging lens group in Embodiment 1. like figure 1 As shown, the imaging lens group includes 6 lenses. The six lenses are the first lens E1 with object side S1 and image side S2, the second lens E2 with object side S3 and image side S4, the third lens E3 with object side S5 and image side S6, and the third lens E3 with object side S5 and image side S6. A fourth lens E4 with a side S7 and an image side S8, a fifth lens E5 with an object side S9 and an image side S10, and a sixth lens E6 with an object side S11 and an image side S12. The first lens E1 to the sixth lens E6 are arranged in order from the object side to the image side of the imaging lens group. The first lens E1 may have positive power, and its object side S1 may be convex; the second lens E2 may have ne...

Embodiment 2

[0102] Refer to the following Figure 6 to Figure 10 An imaging lens group according to Embodiment 2 of the present application will be described. In addition to the parameters of each lens of the imaging lens group, such as the radius of curvature, thickness, material, conic coefficient, effective focal length, axial distance, and higher-order coefficients of each lens, in this embodiment 2 The arrangement structure of the imaging lens groups described in the following embodiments is the same as that of the imaging lens groups described in Embodiment 1. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted.

[0103] Image 6 It is a schematic diagram showing the structure of the imaging lens group of Embodiment 2. The imaging lens group includes a first lens E1 , a second lens E2 , a third lens E3 , a fourth lens E4 , a fifth lens E5 and a sixth lens E6 from the object side to the image side...

Embodiment 3

[0115] Refer to the following Figure 11 to Figure 15 An imaging lens group according to Embodiment 3 of the present application will be described.

[0116] Figure 11 It is a schematic diagram showing the structure of the imaging lens group of Embodiment 3. The imaging lens group includes a first lens E1 , a second lens E2 , a third lens E3 , a fourth lens E4 , a fifth lens E5 and a sixth lens E6 from the object side to the image side.

[0117] Table 7 below shows the effective focal lengths f1 to f6 of the first to sixth lenses E1 to E6, the total effective focal length f of the imaging lens group, the total length TTL of the imaging lens group, and half the maximum field of view HFOV of the imaging lens group .

[0118] f1(mm) 6.15 f(mm) 10.69 f2(mm) -8.79 TTL(mm) 11.50 f3(mm) -11.42 HFOV(deg) 16.6 f4(mm) 15.38 f5(mm) 5.79 f6(mm) -5.34

[0119] Table 7

[0120] Table 8 shows the surface type, curvature r...

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Abstract

The invention discloses a camera lens group. The camera lens group sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object side to the image side of the camera lens group, wherein the first lens has positive focal power; the object side surface of the first lens is a convex surface; the second lens has negative focal power; theimage side surface of the second lens is a concave surface; the third lens, the fourth lens, the fifth lens and the sixth lens all have focal power. The effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens satisfy | f2 / f4 | < 1.5, and the on-axis distance TTL from the object side surface of the first lens to the imaging surface and the effective focallength f of the camera lens group satisfy TTL / f < = 1.1. The six plastic aspheric lenses are adopted in the camera lens set, and the camera lens set has the advantages of being long in effective focallength, good in imaging quality and small in module size.

Description

[0001] divisional application [0002] This application is a divisional application of the Chinese invention patent application submitted on March 13, 2017. technical field [0003] The invention relates to a camera lens group, in particular to a small camera lens group composed of six lenses. Background technique [0004] With the development of science and technology, people have higher and higher requirements for the imaging quality of portable electronic products, and electronic products such as mobile phones and tablet computers will become thinner and smaller. Currently commonly used photosensitive elements such as CCD (charge-coupled device, charge-coupled device) or CMOS (complementary metal-oxide semiconductor, complementary metal-oxide semiconductor) image sensor performance is also improving, the size is gradually decreasing, so the corresponding Camera lenses also need to meet the demands of high imaging quality and miniaturization. [0005] In order to meet mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18G02B1/041
Inventor 黄林戴付建
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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