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Zoom lens group

A zoom lens and lens group technology, applied in the field of zoom lens groups, can solve the problems of large size, occupying the internal space of movable devices, and increased weight, and achieve the effects of optimizing optical parameters, miniaturized imaging quality, and good imaging quality

Pending Publication Date: 2020-06-12
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, installing multiple lenses in a mobile device will not only greatly occupy the internal space of the mobile device, but also cause many problems such as high cost, large size, and substantial increase in weight.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Refer to the following Figures 1 to 6D A zoom lens group according to Embodiment 1 of the present application will be described. figure 1 A schematic structural diagram of the zoom lens group according to Embodiment 1 of the present application when it is in a wide-angle state is shown. figure 2 A schematic structural diagram showing an intermediate state of the zoom lens group according to Embodiment 1 of the present application during switching from a wide-angle state to a telephoto state. image 3A schematic structural diagram of the zoom lens group according to Embodiment 1 of the present application when it is in a telephoto state is shown.

[0075] Such as Figure 1-Figure 3 As shown, the zoom lens group includes in order from the object side to the image side: the first lens group G1 (the first lens E1 and the second lens E2), the diaphragm STO, the second lens group G2 (the third lens E3, the fourth lens E2) lens E4 and fifth lens E5), third lens group G3 (...

Embodiment 2

[0091] Refer to the following Figure 7 to Figure 12D A zoom lens group according to Embodiment 2 of the present application will be described. In this embodiment and the following embodiments, for the sake of brevity, descriptions similar to those in Embodiment 1 will be omitted. Figure 7 A schematic structural diagram of the zoom lens group according to Embodiment 2 of the present application when it is in a wide-angle state is shown. Figure 8 A schematic structural diagram showing an intermediate state of the zoom lens group according to Embodiment 2 of the present application during switching from a wide-angle state to a telephoto state. Figure 9 A schematic structural diagram of the zoom lens group according to Embodiment 2 of the present application when it is in a telephoto state is shown.

[0092] Such as Figure 7-Figure 9 As shown, the zoom lens group includes in order from the object side to the image side: the first lens group G1 (the first lens E1 and the se...

Embodiment 3

[0106] Refer to the following Figure 13 to Figure 18D A zoom lens group according to Embodiment 3 of the present application will be described. Figure 13 A schematic structural diagram of the zoom lens group according to Embodiment 3 of the present application when it is in a wide-angle state is shown. Figure 14 A schematic structural diagram showing an intermediate state of the zoom lens group according to Embodiment 3 of the present application during switching from a wide-angle state to a telephoto state. Figure 15 A schematic structural diagram of the zoom lens group according to Embodiment 3 of the present application when it is in a telephoto state is shown.

[0107] Such as Figure 13-Figure 15 As shown, the zoom lens group includes in order from the object side to the image side: the first lens group G1 (the first lens E1 and the second lens E2), the diaphragm STO, the second lens group G2 (the third lens E3, the fourth lens E2) lens E4 and fifth lens E5), third...

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Abstract

The invention discloses a zoom lens group, which sequentially comprises: a first lens group with negative focal power and having a first lens and a second lens which are arranged in order along an optical axis, wherein the first lens and the second lens are glued to form a first balsaming lens; a second lens group with positive focal power and having a third lens, a fourth lens and a fifth lens which are arranged in order along the optical axis, wherein the fourth lens and the fifth lens are glued to form a second balsaming lens; a third lens group with positive focal power and having a sixthlens. The spacing distance between the first lens group and the second lens group on the optical axis and the spacing distance between the second lens group and the third lens group on the optical axis are changed so as to realize switching of the zoom lens group from the wide-angle state to the telephoto state. The total effective focal length FT when the zoom lens group is in the long-focus state and the total effective focal length FW when the zoom lens group is in the wide-angle state meet the condition that FT / FW is larger than or equal to 2.0.

Description

technical field [0001] The present application relates to the field of optical elements, in particular, to a zoom lens group. Background technique [0002] With the development of camera technology and the rise of the Internet industry, users have higher and higher requirements for the camera level and camera quality of mobile devices such as smartphones and cameras. At present, lens manufacturers in this field generally optimize lens imaging quality by using a combination of ultra-clear main camera, super wide-angle lens, and telephoto lens. However, currently available lenses in the market need to switch between different lenses to complete zooming when shooting different scenes. [0003] The zoom of the current rear camera is mostly "baton" zoom, that is, through the switching of wide-angle-main camera-telephoto to achieve "continuous" zoom in the non-true optical sense. In addition, installing multiple lenses in the mobile device will not only greatly occupy the intern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B15/177
CPCG02B15/177G02B15/143507G02B15/1455G02B7/04G02B13/06
Inventor 高扬张凯元戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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