Pick-up lens group

A camera lens and lens technology, which is applied in the field of camera lens groups, can solve problems such as inability to correct off-axis aberrations

Active Publication Date: 2021-09-10
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of rotationally symmetric aspheric surface can be regarded as a curve in the meridian plane rotated 360° around the optical axis, so it only has sufficient degrees of freedom in the meridian plane, and cannot correct off-axis aberrations well. make corrections

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Refer to the following figure 1 with figure 2 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.

[0078] Such as figure 1 As shown, the imaging lens group according to the exemplary embodiment of the present application includes in sequence along the optical axis from the object side to the image side: a first lens E1, a second lens E2, a stop STO, a third lens E3, and a fourth lens E4 , the fifth lens E5, the sixth lens E6, the filter E7 and the imaging surface S15.

[0079] The first lens E1 has negative refractive power, its object side S1 is concave, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has positive refractive power, its object side S5 is convex, and its image side...

Embodiment 2

[0099] Refer to the following image 3 with Figure 4 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.

[0100] Such as image 3 As shown, the imaging lens group according to the exemplary embodiment of the present application includes in sequence along the optical axis from the object side to the image side: a first lens E1, a second lens E2, a stop STO, a third lens E3, and a fourth lens E4 , the fifth lens E5, the sixth lens E6, the filter E7 and the imaging surface S15.

[0101] The first lens E1 has negative refractive power, its object side S1 is concave, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is c...

Embodiment 3

[0116] Refer to the following Figure 5 with Image 6 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.

[0117] Such as Figure 5 As shown, the imaging lens group according to the exemplary embodiment of the present application includes in sequence along the optical axis from the object side to the image side: a first lens E1, a second lens E2, a stop STO, a third lens E3, and a fourth lens E4 , the fifth lens E5, the sixth lens E6, the filter E7 and the imaging surface S15.

[0118]The first lens E1 has negative refractive power, its object side S1 is concave, and its image side S2 is concave. The second lens E2 has positive refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has positive refractive power, its object side S5 is convex, and its image side S6 is...

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Abstract

The invention discloses a pick-up lens group. The pick-up lens group sequentially comprises from an object side to an image side along an optical axis: a first lens with negative focal power; a second lens with focal power; a third lens with positive focal power; a fourth lens with focal power; a fifth lens with focal power; and a sixth lens with focal power. At least one lens among the first to sixth lenses has a non-rotationally symmetrical aspheric surface; and the maximum field angle FOV of the camera lens group satisfies FOV > 100 degrees, and the axial distance SAG12 from the intersection point of the image side surface of the first lens and the optical axis to the maximum effective semi-aperture vertex of the image side surface of the first lens and the axial distance SAG21 from the intersection point of the object side surface of the second lens and the optical axis to the maximum effective semi-aperture vertex of the object side surface of the second lens satisfy 0<SAG12 / SAG21<2.0.

Description

[0001] Divisional Application Statement [0002] This application is a divisional application of the Chinese invention patent application submitted on November 21, 2018. technical field [0003] The present application relates to a camera lens group, and more particularly, to a camera lens group including six lenses. Background technique [0004] In recent years, with the rapid development of mobile phone cameras and the popularity of large-size, high-pixel complementary metal oxide semiconductor (CMOS) or photosensitive coupling device (CCD) chips, major mobile phone manufacturers are pursuing thinner lenses and Simultaneously with miniaturization, strict requirements are placed on the imaging quality of the lens. At present, the lenses used in mobile phones and other portable electronic products mostly adopt a six-piece structure, and the lens surfaces are all rotationally symmetrical (axisymmetric) aspherical surfaces. This type of rotationally symmetric aspheric surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18G03B30/00
CPCG02B13/0045G02B13/06G02B13/18G03B30/00
Inventor 贾远林徐武超
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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