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Optical imaging lens

An optical imaging lens and lens technology, applied in optics, optical components, instruments, etc., can solve the problem that the angle of view is not enough to meet the needs of photography enthusiasts to shoot large-area scenes, and the camera lens cannot take full-scale scenes.

Pending Publication Date: 2020-08-07
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When many photographers are shooting large-scale scenes, such as tall mountain views, wide buildings, large parades, and all indoor exhibits, etc., they are often limited by aspects such as the field of view of the lens, so that the camera lens cannot Take pictures of a large area
The angle of view of most camera lenses on the market is not enough to meet the needs of photographers for shooting large-scale scenes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Refer to the following Figure 1 to Figure 2D 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.

[0055] like figure 1 As shown, the optical imaging lens 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.

[0056] 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 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 ...

Embodiment 2

[0070] Refer to the following Figure 3 to Figure 4D 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.

[0071] like image 3 As shown, the optical imaging lens 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.

[0072] The first lens E1 has positive refractive power, its object side S1 is concave, and its image side S2 is convex. 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, an...

Embodiment 3

[0084] Refer to the following Figure 5 to Figure 6D 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.

[0085] like Figure 5 As shown, the optical imaging lens 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.

[0086] 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 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 S...

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Abstract

The invention discloses an optical imaging lens, and the lens sequentially comprises the following five lenses from an object side to an image side along an optical axis: a first lens with focal power, wherein the object side of the first lens is a concave surface; a second lens with positive focal power; a third lens with negative focal power, wherein the object side of the third lens is a convexsurface; a fourth lens with focal power; and a fifth lens with focal power, wherein the object side of the fifth lens is a concave surface. A half of the Simi-FOV of the maximum field angle of the optical imaging lens meets the condition that the Simi-FOV is greater than or equal to 60 degrees; the half ImgH of the diagonal length of the effective pixel area on the imaging surface of the opticalimaging lens, the effective focal length f2 of the second lens and the effective focal length f5 of the fifth lens meet the condition that ImgH / (f2 + f5) is more than 0 and less than 5.0.

Description

technical field [0001] The present application relates to the field of optical elements, in particular, to an optical imaging lens. Background technique [0002] When many photographers are shooting large-scale scenes, such as tall mountain views, wide buildings, large parades, and all indoor exhibits, etc., they are often limited by aspects such as the field of view of the lens, so that the camera lens cannot Shoot a large area of ​​scenery. The angle of view of most camera lenses on the market is not enough to meet the needs of photographers for shooting large-scale scenes. [0003] Therefore, in order to meet the needs of more photographers for shooting large-area scenes, there is an urgent need in the market for an optical imaging lens that can take into account both high imaging quality and a large field of view. Contents of the invention [0004] One aspect of the present application provides such an optical imaging lens, the optical imaging lens includes in sequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0045G02B13/06G02B13/18
Inventor 周雨黄林戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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