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Camera lens group

A camera lens and lens technology, applied in the field of camera lens groups, can solve the problems of large aperture, large field of view and high imaging quality, and achieve the effect of high imaging quality and large field of view

Active Publication Date: 2018-07-13
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing miniaturized lenses capable of imaging in the infrared band cannot take into account large aperture, large field of view and high imaging quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Refer to the following Figure 1 to Figure 2D An imaging lens group according to Embodiment 1 of the present application will be described. figure 1 A schematic structural diagram of the camera lens group according to Embodiment 1 of the present application is shown.

[0076] Such as figure 1 As shown, the imaging lens group according to the exemplary embodiment of the present application may sequentially include: an aperture STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens along the optical axis from the object side to the image side E4, filter E5 and imaging surface S11.

[0077] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is concave, and its image side S4 is convex. The third lens E3 has positive refractive power, its object side S5 is concave, and its image side S6 is convex. The fourth lens E4 has n...

Embodiment 2

[0102] Refer to the following Figure 3 to Figure 4D 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 the camera lens group according to Embodiment 2 of the present application is shown.

[0103] Such as image 3 As shown, the imaging lens group according to the exemplary embodiment of the present application may sequentially include: an aperture STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens along the optical axis from the object side to the image side E4, filter E5 and imaging surface S11.

[0104] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is concave, and its image side S4 is convex. ...

Embodiment 3

[0117] Refer to the following Figure 5 to Figure 6D An imaging lens group according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of a camera lens group according to Embodiment 3 of the present application is shown.

[0118] Such as Figure 5 As shown, the imaging lens group according to the exemplary embodiment of the present application may sequentially include: an aperture STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens along the optical axis from the object side to the image side E4, filter E5 and imaging surface S11.

[0119] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is concave, and its image side S4 is convex. The third lens E3 has positive refractive power, its object side S5 is concave, and its image side S6 is convex. The fourth lens E4 has negati...

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Abstract

The invention discloses a camera lens group which sequentially comprises a first lens, a second lens, a third lens and a fourth lens along the optical axis from an object side to an image side. The first lens has positive focal power, and an object-side surface of the first lens is a convex surface; the second lens has positive focal power; the third lens has positive focal power, an object-side surface of the third lens is a concave surface, and an image-side surface of the third lens is a convex surface; the fourth lens has negative focal power. The maximum half-field-of-view angle HFOV of the camera lens group meets a conditional expression of 45 <HFOV<50 .

Description

technical field [0001] The present application relates to a camera lens group, and more specifically, the present application relates to a camera lens group including four lenses. Background technique [0002] With the popularization of portable electronic products such as mobile phones and tablet computers, people's demand for diversified product functions is increasing. At the same time, with the development of science and technology, 3D camera technology has become more and more mature, and has been widely used in portable electronic products. However, most of the existing miniaturized lenses capable of imaging in the infrared band cannot take into account large aperture, large field of view and high imaging quality. [0003] Therefore, there is a need for a camera lens group based on the infrared band, which has the characteristics of miniaturization, large aperture, large field of view, and good imaging performance. Contents of the invention [0004] The present app...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/004G02B13/06G02B9/34
Inventor 徐标张凯元
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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