Optical imaging lens and photographing equipment

An optical imaging lens and lens technology, which is applied in the field of optical lenses, can solve problems such as the inability to further meet high-standard imaging requirements, and achieve the effects of shortening the total optical length, correcting astigmatism, and reducing image distortion

Active Publication Date: 2018-03-30
GUANGDONG XUYE OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, mainstream small lenses mostly use five-element lens structure, but in the era when high-standard mobile terminals such as smartphones and tablet computers are prevalent, people pursue higher image quality for better user experience, and now Some five-element lens structures have limitations in terms of refractive power distribution, aberration astigmatism correction, sensitivity distribution, etc., and cannot further meet higher-standard imaging requirements

Method used

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  • Optical imaging lens and photographing equipment
  • Optical imaging lens and photographing equipment
  • Optical imaging lens and photographing equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0089] Please refer to figure 1 , is a schematic diagram of the optical imaging lens provided by the first embodiment of the present invention. As can be seen from the figure, the optical imaging lens includes a first lens 11, a second lens 12, a third lens 13, a fourth lens 14, a fifth lens 15 and a sixth lens arranged in sequence along the optical axis from the object side to the image side 16;

[0090] The first lens 11 has a positive refractive power, and its object-side surface is convex;

[0091] The second lens 12 has a negative refractive power, its object-side surface is convex, and its image-side surface is concave;

[0092] The third lens 13 has positive refractive power, its image-side surface is concave at the near optical axis, and the image-side surface has at least one inflection point;

[0093] The fourth lens 14 has negative refractive power, its object-side surface is convex at the near optical axis, its image-side surface is concave at the near optical a...

no. 2 example

[0111] Please refer to Image 6 , is a schematic diagram of the optical imaging lens provided by the second embodiment of the present invention. As can be seen from the figure, the optical imaging lens includes a first lens 21, a second lens 22, a third lens 23, a fourth lens 24, a fifth lens 25 and a sixth lens arranged in sequence along the optical axis from the object side to the image side 26;

[0112] The first lens 21 has a positive refractive power, and its object-side surface is convex;

[0113] The second lens 22 has a negative refractive power, its object-side surface is convex, and its image-side surface is concave;

[0114] The third lens 23 has positive refractive power, its image-side surface is concave at the near optical axis, and the image-side surface has at least one inflection point;

[0115] The fourth lens 24 has negative refractive power, its object-side surface is convex at the near optical axis, its image-side surface is concave at the near optical ...

no. 3 example

[0132] Please refer to Figure 9 , is a schematic diagram of the optical imaging lens provided by the third embodiment of the present invention. As can be seen from the figure, the optical imaging lens includes a first lens 31, a second lens 32, a third lens 33, a fourth lens 34, a fifth lens 35 and a sixth lens arranged in sequence along the optical axis from the object side to the image side 36;

[0133] The first lens 31 has a positive refractive power, and its object-side surface is convex;

[0134] The second lens 32 has a negative refractive power, its object-side surface is convex, and its image-side surface is concave;

[0135] The third lens 33 has positive refractive power, its image-side surface is concave at the near optical axis, and the image-side surface has at least one inflection point;

[0136] The fourth lens 34 has negative refractive power, its object-side surface is convex at the near optical axis, its image-side surface is concave at the near optical ...

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Abstract

The invention discloses an optical imaging lens comprising a first lens which has positive refractive power and a convex object side surface; a second lens which has negative refractive power and a convex object side surface and a concave image side surface; a third lens which has positive refractive power; a fourth lens which has negative refractive power; a fifth lens which has positive refractive power, wherein the position of the object side surface close to the optical axis is a convex surface and the area away from the optical axis is a concave surface, the object side surface is provided with at least one point of inflexion, the position of the image side surface close to the optical axis is a convex surface and the object side surface and the image side surface are aspheric surfaces; and a sixth lens which has negative refractive power, wherein the positions of the object side surface and the image side surface close to the optical axis are concave surfaces, the image side surface is provided with at least one point of inflexion and the object side surface and the image side surface are aspheric surfaces. According to the optical imaging lens, miniaturizing and lightweightand thinning can be met and the aberration and astigmatism can be reasonably corrected so that the imaging frame has low distortion and high definition. The invention also discloses photographing equipment comprising the optical imaging lens.

Description

technical field [0001] The invention relates to the technical field of optical lenses, in particular to an optical imaging lens. The invention also relates to an imaging device. Background technique [0002] In recent years, the mobile Internet has developed rapidly. While bringing great convenience to people's lives, people have higher and higher requirements for mobile terminals. They are constantly pursuing more convenient, efficient and high-quality mobile experience, which requires mobile terminals to be more Lightweight and portable. Driven by this, the market demand for small and thin camera modules has increased sharply, especially in lens applications in mobile phones, tablet computers and other fields. [0003] At present, mainstream small lenses mostly use five-element lens structure, but in the era when high-standard mobile terminals such as smartphones and tablet computers are prevalent, people pursue higher image quality for better user experience, and now S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00
CPCG02B13/0045
Inventor 林肖怡李光云覃祖逖
Owner GUANGDONG XUYE OPTOELECTRONICS TECH
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