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Optical zoom lens, camera module and mobile terminal

An optical zoom and lens technology, applied in the field of lenses, can solve the problems of high cost and large volume, and achieve the effect of low cost, small volume and reduced use

Active Publication Date: 2021-01-15
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiment of the present application is to provide an optical zoom lens, a camera module and a mobile terminal to solve the problems in the related art that the optical zoom of the camera in the mobile terminal requires the use of cameras with multiple focal lengths, high cost and large volume.

Method used

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  • Optical zoom lens, camera module and mobile terminal
  • Optical zoom lens, camera module and mobile terminal
  • Optical zoom lens, camera module and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0088]In this embodiment, please refer to Table 1, Table 2 and Table 3 for the design parameters of the optical zoom lens 100. Table 1 shows the relevant parameters of each surface of each lens.figure 1 The surface number of each lens corresponds to. Table 2 shows the aspheric system of each surface of each lens. Table 3 shows the parameters of the optical zoom lens 100 when the zoom is a wide-angle lens and a main lens. In Table 1 and Table 3, D12 is the distance between the second lens 112 and the third lens 121, and D23 is the distance between the sixth lens 124 and the seventh lens 131.

[0089]Table 1 Design parameters of each lens

[0090]

[0091]

[0092]Table 2 Aspheric parameters of each lens

[0093] Serial number kBCDEFGH S1-1.91E+011.70E-03-4.60E-055.14E-071.90E-09-1.48E-102.14E-12-1.15E-14 S2-8.94E+003.83E-03-1.01E-044.50E-06-1.48E-07-2.14E-091.84E-10-2.30E-12 S35.03E+00-5.39E-041.87E-05-2.29E-06-5.84E-09-3.27E-091.93E-10-2.26E-12 S41.26E+01-7.26E-041.31E-05-3.98E-062.40E-07-1.46E...

example 2

[0103]In this embodiment, please refer to Table 4, Table 5, and Table 6 for the design parameters of the optical zoom lens 100. Table 4 shows the relevant parameters of each surface of each lens.Picture 9 The surface number of each lens corresponds to. Table 5 shows the aspheric system of each surface of each lens. Table 6 shows the parameters of the optical zoom lens 100 when the zoom is a wide-angle lens and a main lens. In Tables 4 and 6, D12 is the distance between the second lens 112 and the third lens 121, and D23 is the distance between the sixth lens 124 and the seventh lens 131.

[0104]Table 4 Design parameters of each lens

[0105]

[0106]Table 5 Aspheric parameters of each lens

[0107]

[0108]

[0109]Table 6 Zoom parameters

[0110] Wide-angle lens Main lens Image height 5.125.12 Focal length (mm) 4.986.15 FNO 2.12.1 TTL(mm)19.5214.94 D124.980.113 D232.3062.601

[0111]In Example 2 of the present application, the structure of the optical zoom lens 100 when zooming is a wide-angle lens i...

example 3

[0118]In this embodiment, please refer to Table 7, Table 8 and Table 9 for the design parameters of the optical zoom lens 100. Table 7 shows the relevant parameters of each surface of each lens.Figure 17 The surface number of each lens corresponds to. Table 8 shows the aspheric system of each surface of each lens. Table 9 shows the parameters of the optical zoom lens 100 when the zoom is a wide-angle lens and a main lens. In Tables 7 and 9, D12 is the distance between the second lens 112 and the third lens 121, and D23 is the distance between the sixth lens 124 and the seventh lens 131.

[0119]Table 7 Design parameters of each lens

[0120]

[0121]

[0122]Table 8 Aspheric parameters of each lens

[0123] Serial number kBCDEFGH S1-1.05E+011.57E-03-3.51E-052.74E-072.60E-09-8.69E-119.83E-13-4.56E-15 S2-1.75E+022.75E-03-4.67E-051.48E-06-1.88E-08-2.36E-098.25E-11-7.19E-13 S33.31E+00-2.71E-031.13E-04-5.74E-07-5.33E-08-2.96E-091.72E-10-2.64E-12 S47.16E+00-2.51E-031.12E-04-2.77E-061.84E-07-1.54E-085...

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Abstract

The invention provides an optical zoom lens, a camera module and a mobile terminal. The optical zoom lens comprises a first lens group, a second lens group and a third lens group. The optical zoom lens is configured to fix the third lens group during zooming, and the first lens group and the second lens group move along the optical axis; the optical zoom lens also satisfies the following conditions: -1G2 / FG1 < 0 and 0G3 / FG1<1, wherein FG1 is the focal length of the first lens group, FG2 is the focal length of the second lens group, and FG3 is the focal length of the third lens group. Accordingto the optical zoom lens provided by the invention, the first lens group, the second lens group and the third lens group are arranged, so that the first lens group and the second lens group can movealong the optical axis to realize optical zoom, and the optical zoom lens can be manufactured to be relatively small, so that the optical zoom lens can realize switching between main shooting and wide-angle shooting, the use of the lens is reduced, the cost is reduced, and the size is reduced.

Description

Technical field[0001]This application belongs to the field of lens technology, and more specifically, relates to an optical zoom lens, a camera module, and a mobile terminal.Background technique[0002]Current mobile terminals such as smart phones and tablet computers often use different cameras, such as wide-angle lenses, main cameras, and telephoto lenses, in order to achieve different shooting functions. In order to improve the camera quality at different distances, current mobile terminals generally set up multiple cameras with different focal lengths, and switch between different cameras to achieve optical zoom. However, this structure requires cameras with multiple focal lengths to be provided in the mobile terminal, which is not only large in size, occupies more space in the mobile terminal, and high in cost.Summary of the invention[0003]The purpose of the embodiments of the present application is to provide an optical zoom lens, a camera module, and a mobile terminal, so as to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B15/163G02B15/14
CPCG02B15/163G02B15/143
Inventor 张凯朋
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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