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Camera lens group

A camera lens and lens technology, applied in the field of camera lens groups, can solve problems such as inability to effectively correct

Pending Publication Date: 2020-08-25
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the camera lens groups used in various types of terminal smart devices currently use rotationally symmetrical (axisymmetric) aspheric surface features, they only have sufficient degrees of freedom in the direction of the meridional image plane, and cannot be well aligned with off-axis The aberrations on the meridian image plane and the aberrations on the sagittal image plane are effectively corrected

Method used

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Experimental program
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Effect test

Embodiment 1

[0071] Refer to the following Figure 1 to Figure 3B 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.

[0072] Such as figure 1As shown, the camera lens group includes in sequence from the object side to the image side: a first lens E1, a diaphragm STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and Imaging surface S13.

[0073] The first lens E1 has negative 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 convex, and its image side S4 is convex. The third lens E3 has negative refractive power, its object side S5 is convex, and its image side S6 is concave. The fourth lens E4 has positive refractive power, its object side S7 is concave, and its image side S8 i...

Embodiment 2

[0095] Refer to the following Figure 4 to Figure 6B 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. Figure 4 A schematic structural diagram of the camera lens group according to Embodiment 2 of the present application is shown.

[0096] Such as Figure 4 As shown, the camera lens group includes in sequence from the object side to the image side: a first lens E1, a diaphragm STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and Imaging surface S13.

[0097] The first lens E1 has negative 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 convex, and its image side S4 is convex. The third lens E3 has negative refractive power, its object side S5 is conve...

Embodiment 3

[0113] Refer to the following Figure 7 to Figure 9B The imaging lens group according to Embodiment 3 of the present application is described. Figure 7 A schematic structural diagram of a camera lens group according to Embodiment 3 of the present application is shown.

[0114] Such as Figure 7 As shown, the camera lens group includes in sequence from the object side to the image side: a first lens E1, a diaphragm STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and Imaging surface S13.

[0115] The first lens E1 has negative 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 convex, and its image side S4 is convex. The third lens E3 has negative refractive power, its object side S5 is convex, and its image side S6 is concave. The fourth lens E4 has positive refractive power, its object side S7 is concave, and its image side S8 is con...

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Abstract

The invention discloses a pick-up lens group. The pick-up lens group sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens with focal power from an object side to an image side along an optical axis, at least one lens among the first to the fifth lenses is provided with an aspheric mirror surface which is in non-rotational symmetry. And the maximum effective radius DT11 of the object side surface of the first lens meets the condition that DT11 is less than 0.80 mm.

Description

technical field [0001] The present application relates to the field of optical elements, in particular, to a camera lens group. Background technique [0002] In recent years, with the continuous development of miniaturized camera lenses and the popularity of large-size, high-pixel chips, major terminal smart device manufacturers have put forward higher requirements for the performance of camera lenses used in smart devices. Since the camera lens groups used in various types of terminal smart devices currently use rotationally symmetrical (axisymmetric) aspheric surface features, they only have sufficient degrees of freedom in the direction of the meridional image plane, and cannot be well aligned with off-axis The aberrations on the meridian image plane and the aberrations on the sagittal image plane are effectively corrected. [0003] The free-form surface is a non-rotationally symmetric aspheric surface, which increases the non-rotationally symmetric component and increas...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18G02B9/60G02B13/04
Inventor 李阳戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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