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Telephoto lens and electronic equipment

A lens and lens technology, applied in optical components, optics, instruments, etc., can solve the problem that the imaging clarity of remote scenes is difficult to meet the requirements of use, and achieve high-definition imaging, meet telephoto requirements, and ensure the effect of miniaturization

Pending Publication Date: 2022-03-25
GUANGDONG XUYE OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to adapt to the portability of portable smart devices, the camera lenses mounted in these smart devices are required to have the characteristics of miniaturization, but in this way, if the viewing angle range is required to meet the requirements at the same time, the effect of telephoto imaging will be sacrificed. The imaging clarity of far-end scenes is difficult to meet the requirements of use

Method used

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  • Telephoto lens and electronic equipment
  • Telephoto lens and electronic equipment
  • Telephoto lens and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] see Figure 1 to Figure 3 , figure 1 A schematic diagram showing a telephoto lens according to Embodiment 1 of the present invention, figure 2 From left to right is a graph of astigmatism and distortion curves of a telephoto lens according to Embodiment 1 of the present invention, image 3 It is a spherical aberration curve diagram of a telephoto lens according to Embodiment 1 of the present invention.

[0091] In this embodiment, the telephoto lens includes a first lens 110 to a sixth lens 160 sequentially arranged along the direction from the object side to the image side, and also includes a diaphragm 101 arranged on the object side of the first lens 110 .

[0092] Wherein, the first lens 110 has positive refractive power, its object-side surface 111 is convex at the near optical axis, and its image-side surface 112 is concave at the near optical axis; the second lens 120 has positive refractive power, and its object-side surface 121 is convex at the near optical...

Embodiment 2

[0104] see Figure 4 to Figure 6 , Figure 4 A schematic diagram showing a telephoto lens according to Embodiment 2 of the present invention, Figure 5 From left to right is the astigmatism and distortion curve of a telephoto lens according to Embodiment 2 of the present invention, Figure 6 It is a spherical aberration curve diagram of a telephoto lens according to Embodiment 2 of the present invention.

[0105] In this embodiment, the telephoto lens includes a first lens 210 to a sixth lens 260 sequentially arranged along the direction from the object side to the image side, and also includes a diaphragm 201 arranged on the object side of the first lens 210 .

[0106]Wherein, the first lens 210 has positive refractive power, its object-side surface 211 is convex at the near optical axis, and its image-side surface 212 is concave at the near optical axis; the second lens 220 has positive refractive power, and its object-side surface 221 is convex at the near optical axis, ...

Embodiment 3

[0115] see Figure 7 to Figure 9 , Figure 7 It shows a schematic diagram of a telephoto lens according to Embodiment 3 of the present invention, Figure 8 From left to right is the astigmatism and distortion curve of a telephoto lens according to Embodiment 3 of the present invention, Figure 9 It is a spherical aberration curve diagram of a telephoto lens according to Embodiment 3 of the present invention.

[0116] In this embodiment, the telephoto lens includes a first lens 310 to a sixth lens 360 sequentially arranged along the direction from the object side to the image side, and also includes a diaphragm 301 arranged on the object side of the first lens 310 .

[0117] Wherein, the first lens 310 has positive refractive power, its object-side surface 311 is convex at the near optical axis, and its image-side surface 312 is concave at the near optical axis; the second lens 320 has positive refractive power, and its object-side surface 321 is convex at the near optical a...

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Abstract

The invention discloses a telephoto lens and electronic equipment. The telephoto lens comprises a first lens, a second lens, a third lens, a fifth lens, a fourth lens and a sixth lens, wherein the first lens, the second lens, the third lens and the fifth lens have positive refractive power; the object side surfaces and the image side surfaces of the first lens, the second lens, the fifth lens and the sixth lens are convex surfaces and concave surfaces respectively, the object side surface and the image side surface of the third lens are convex surfaces, and the object side surface and the image side surface of the fourth lens are concave surfaces and convex surfaces respectively; the lens satisfies the following conditions: 1.00 < f / (f2-f3) < 1.70; 2.50 < R21 / (CT2 + ET2) < 3.25, f, f2 and f3 are focal lengths of the telephoto lens, the second lens and the third lens respectively, R21 is the radius of curvature of the object side surface of the second lens, CT2 is the thickness of the second lens on the optical axis, and ET2 is the edge thickness of the second lens. According to the telephoto lens, the bending force and the surface type of each lens are reasonably matched, and the telephoto lens meets specific conditions, so that high-definition imaging of a far-end scene can be realized while the size miniaturization is ensured, and the telephoto requirement is met.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a telephoto lens and electronic equipment. Background technique [0002] With the development of photosensitive element technology, camera lenses are now widely used in portable smart devices, and the imaging effect is almost comparable to that of professional cameras. [0003] In order to adapt to the portability of portable smart devices, the camera lenses mounted in these smart devices are required to have the characteristics of miniaturization, but in this way, if the viewing angle range is required to meet the requirements at the same time, the effect of telephoto imaging will be sacrificed. The imaging clarity of far-end scenes is difficult to meet the usage requirements. Contents of the invention [0004] Aiming at the deficiencies of the prior art, the present invention provides a telephoto lens and electronic equipment to solve the above-mentioned problems in ...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18G03B30/00
CPCG02B13/0045G02B13/18G03B30/00
Inventor 林肖怡袁嘉华申顺
Owner GUANGDONG XUYE OPTOELECTRONICS TECH
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