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Imaging lens group

A camera lens and lens technology, applied in prisms, optics, instruments, etc., can solve the problems of the focal length of the telephoto lens, the limited length of the camera lens group, and the inability to achieve ultra-thinness, etc., and achieve the effect of large field of view and good imaging quality

Pending Publication Date: 2020-07-10
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the conventional coaxial telephoto design is used, the focal length of the telephoto lens will be greatly limited by the overall length of the camera lens group
To achieve a long-focus lens that meets the requirements, it will inevitably make it impossible for portable electronic products such as smart phones to achieve ultra-thin features.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Refer to the following Figure 1 to Figure 2C An imaging lens group according to Embodiment 1 of the present application will be described. figure 1 A schematic structural diagram of an imaging lens group according to Embodiment 1 of the present application is shown.

[0060] like figure 1 As shown, the imaging lens group includes in sequence from the object side to the image side: the first lens E1 and the first prism E2 along the X1 optical axis; the diaphragm STO along the Y optical axis, the second lens E3, the third lens E4, The fourth lens E5 and the second prism E6; and the fifth lens E7 along the X2 optical axis, the filter E8 and the imaging surface S19.

[0061] The first lens E1 has negative refractive power, its object side S1 is concave, and its image side S2 is concave. The first prism E2 has a light incident surface S3, a first reflective surface S4 and a light exit surface S5. The second lens E3 has positive refractive power, its object side S6 is co...

Embodiment 2

[0073] Refer to the following Figure 3 to Figure 4C An imaging 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. image 3 A schematic structural diagram of an imaging lens group according to Embodiment 2 of the present application is shown.

[0074] like image 3 As shown, the imaging lens group includes in sequence from the object side to the image side: the first lens E1 and the first prism E2 along the X1 optical axis; the diaphragm STO along the Y optical axis, the second lens E3, the third lens E4, The fourth lens E5 and the second prism E6; and the fifth lens E7 along the X2 optical axis, the filter E8 and the imaging surface S19.

[0075] The first lens E1 has negative refractive power, its object side S1 is concave, and its image side S2 is concave. The first prism E2 has a light incident surface...

Embodiment 3

[0084] Refer to the following Figure 5 to Figure 6C An imaging lens group according to Embodiment 3 of the present application will be described. Figure 5 A schematic structural diagram of an imaging lens group according to Embodiment 3 of the present application is shown.

[0085] like Figure 5 As shown, the imaging lens group includes in sequence from the object side to the image side: the first lens E1 and the first prism E2 along the X1 optical axis; the diaphragm STO along the Y optical axis, the second lens E3, the third lens E4, The fourth lens E5 and the second prism E6; and the fifth lens E7 along the X2 optical axis, the filter E8 and the imaging surface S19.

[0086] The first lens E1 has negative refractive power, its object side S1 is concave, and its image side S2 is concave. The first prism E2 has a light incident surface S3, a first reflective surface S4 and a light exit surface S5. The second lens E3 has positive refractive power, its object side S6 is ...

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PUM

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Abstract

The invention discloses a camera lens group. The camera lens group sequentially comprises a first lens with focal power; a first prism which has a first reflecting surface, and the included angle between the first reflecting surface and the optical axis is 45 degrees; a diaphragm; a second lens having focal power; a third lens having focal power; a fourth lens having focal power; and a second prism which is provided with a second reflecting surface, and the included angle between the second reflecting surface and the optical axis is 45 degrees; and the maximum field angle FOV of the camera lens group meets the condition that FOV is greater than or equal to 80.0 degrees.

Description

technical field [0001] The present application relates to the field of optical elements, and more specifically, to an imaging lens group. Background technique [0002] At present, with the rapid development of portable electronic products such as smartphones, the application of camera lenses is becoming more and more extensive. Most of the camera lens groups of portable electronic products such as smartphones adopt a 3+1 combination configuration of a large image lens, a wide-angle lens, a telephoto lens and a TOF lens. zoom capability. However, if the conventional coaxial telephoto design is used, the focal length of the telephoto lens will be greatly limited by the overall length of the imaging lens group. To achieve a long-focus lens that meets the requirements, it will inevitably make it impossible for portable electronic products such as smart phones to achieve ultra-thin features. [0003] How to ensure that the camera lens has characteristics such as ultra-thin, mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/0065G02B13/06G02B13/18G02B9/60
Inventor 李龙闻人建科戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD