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Optical imaging lens

An optical imaging lens and lens technology, applied in optics, optical components, instruments, etc., can solve the problems of large distortion and distortion of wide-angle lenses, and achieve the effect of small distortion and good imaging quality

Active Publication Date: 2021-08-24
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general wide-angle lens has a large distortion, and distortion may occur when shooting scenes such as portraits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] Refer to the following Figures 1 to 2E An optical imaging lens according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown.

[0087] Such as figure 1 As shown, the optical imaging lens includes a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens along the optical axis from the object side to the image side. Lens E6 and filter E7.

[0088]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 convex. The fourth lens E4 has negative refractive power, its object side S7 is concave, and its imag...

Embodiment 2

[0101] Refer to the following Figure 3 to Figure 4E An optical imaging lens 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 according to Embodiment 2 of the present application is shown.

[0102] Such as image 3 As shown, the optical imaging lens includes in sequence from the object side to the image side along the optical axis: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens Lens E6 and filter E7.

[0103] 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 refract...

Embodiment 3

[0114] Refer to the following Figure 5 to Figure 6E An optical imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown.

[0115] Such as Figure 5 As shown, the optical imaging lens includes in sequence from the object side to the image side along the optical axis: the first lens E1, the second lens E2, the diaphragm STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens Lens E6 and filter E7.

[0116] 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 convex. The fourth lens E4 has positive refractive power, its object s...

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Abstract

The invention discloses an optical imaging lens, which sequentially comprises a first lens with negative focal power, a second lens with focal power, a third lens with focal power, a fourth lens with focal power, a fifth lens having focal power, and a sixth lens having focal power from an object side to an image side along an optical axis. The object side surface and the image side surface of the first lens are a concave surface. The image side surface of the fifth lens is a convex surface. The maximum field angle FOV of the optical imaging lens is greater than 100 degrees and less than 140 degrees. The absolute value of TV distortion TVD of the optical imaging lens is less than 1.1%. The half ImgH of the diagonal line length of an effective pixel area on the imaging surface of the optical imaging lens and the distance TTL from the object side surface of the first lens to the imaging surface along the optical axis meet the condition that ImgH / TTL is larger than 0.3 and smaller than 1.3.

Description

technical field [0001] The present application relates to the field of optical elements, more specifically, to an optical imaging lens. Background technique [0002] With the rapid development of science and technology in the 21st century, the development of miniature cameras suitable for portable electronic products such as mobile phones and tablet computers is also changing with each passing day, and people's requirements for the imaging quality of camera lenses are also getting higher and higher. In order to improve competitiveness, electronic product manufacturers often use multiple cameras to meet people’s requirements in different scenarios. For example, many mobile phones use dual, triple, or even quadruple and Wide-angle, large image surface and other lenses. Wide-angle lenses have the characteristics of large viewing angle and long depth of field, which can accommodate more scenery in the picture, and play an irreplaceable role in shooting scenes such as vast wilde...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18
Inventor 周进张晓彬闻人建科戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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