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Optical imaging lens group

A technology of optical imaging and lens group, which is applied in optics, optical components, instruments, etc., can solve problems such as limited promotion, and achieve the effects of optimizing optical parameters, miniaturized imaging quality, and good imaging quality

Active Publication Date: 2021-05-04
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if an anamorphic lens is connected to the mobile phone, on the one hand, the anamorphic lens needs to be precisely docked with the phone lens; , which to some extent limits the promotion of this wide-format picture technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Refer to the following Figure 1 to Figure 2 An optical imaging lens group according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of an optical imaging lens group according to Embodiment 1 of the present application is shown.

[0097] Such as figure 1 As shown, the optical imaging lens group includes in sequence from the object side to the image side: the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the diaphragm STO, the fifth lens E5, and the sixth lens E6 , the seventh lens E7, the eighth lens E8, the filter E9 and the imaging surface S19.

[0098] The first lens E1 has negative refractive power in the Y-axis direction of the optical imaging lens group, and has negative refractive power in the X-axis direction of the optical imaging lens group. The object side S1 is convex, and the image side S2 is concave. The second lens E2 has positive refractive power in the Y-axis direction of the ...

Embodiment 2

[0124] Refer to the following Figure 3 to Figure 4 An optical imaging lens group according to Embodiment 2 of the present application is 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 optical imaging lens group according to Embodiment 2 of the present application is shown.

[0125] Such as image 3 As shown, the optical imaging lens group includes in sequence from the object side to the image side: the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the diaphragm STO, the fifth lens E5, and the sixth lens E6 , the seventh lens E7, the eighth lens E8, the filter E9 and the imaging surface S19.

[0126] The first lens E1 has negative refractive power in the Y-axis direction of the optical imaging lens group, and has negative refractive power in the X-axis direction of the optical imaging lens group. The ...

Embodiment 3

[0144] Refer to the following Figure 5 to Figure 6 An optical imaging lens group according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens group according to Embodiment 3 of the present application is shown.

[0145] Such as Figure 5 As shown, the optical imaging lens group includes in sequence from the object side to the image side: the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the diaphragm STO, the fifth lens E5, and the sixth lens E6 , the seventh lens E7, the eighth lens E8, the filter E9 and the imaging surface S19.

[0146] The first lens E1 has negative refractive power in the Y-axis direction of the optical imaging lens group, and has negative refractive power in the X-axis direction of the optical imaging lens group. The object side S1 is convex, and the image side S2 is concave. The second lens E2 has positive refractive power in the Y-axis direction of ...

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Abstract

The invention discloses an optical imaging lens group. The optical imaging lens group sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens from an object side to an image side along an optical axis, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens and the eighth lens have focal power. At least one of the first to eighth lenses has a non-rotationally symmetric aspherical mirror surface. The total effective focal length fy of the optical imaging lens group in the Y-axis direction and the total effective focal length fx of the optical imaging lens group in the X-axis direction meet the condition that fy / fx is less than 0.8; and the aperture value Fnoy of the optical imaging lens group in the Y-axis direction meets the condition that Fnoy is less than 2.9.

Description

technical field [0001] The present application relates to the field of optical elements, in particular to an optical imaging lens group. Background technique [0002] In recent years, with the vigorous development of portable electronic products such as smartphones, manufacturers of major smartphones have gradually begun to study how to improve the shooting effect of smartphones in order to improve the competitiveness of their products. At present, most mobile phone lenses on the market have an aspect ratio of 16:9, which cannot meet users' needs for wide-format images. [0003] Usually, in order to obtain a wide-frame picture, it is necessary to crop the captured photo later, but the cropping will destroy the composition and pixels of the original photo. In addition, in order to generate the original wide-format picture, it is first necessary to apply a free-form surface to compress the length of the picture, and then stretch it through post-processing. Specifically, an ex...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18G02B9/64G02B27/0025
Inventor 王晓芳张晓彬闻人建科戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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