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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 small imaging surface, less image information, and small imaging range

Active Publication Date: 2021-02-09
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of relative illuminance, the imaging surface of the wide-angle lens is usually small, and the imaging range is small, and the image information collected is also small.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] 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.

[0103] Such as figure 1 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, seventh lens E7 and filter E8.

[0104] 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 concave, and its image side S6 is convex. The fourth lens E4 has positive refractive pow...

Embodiment 2

[0118] 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.

[0119] 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, seventh lens E7 and filter E8.

[0120] The first lens E1 has negative refractive power, its object side S1 is convex, 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 ...

Embodiment 3

[0130] 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.

[0131] 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, seventh lens E7 and filter E8.

[0132] The first lens E1 has negative 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 concave. The third lens E3 has positive refractive power, its object side S5 is concave, and its image side S6 is convex. The fourth lens E4 has positive refractive po...

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PUM

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Abstract

The invention discloses an optical imaging lens, which sequentially comprises from an object side to an image side along an optical axis: a first lens; a second lens; a third lens, wherein the image side surface of the third lens is a convex surface; a fourth lens, wherein the image side surface of the fourth lens is a convex surface; a fifth lens element; a sixth lens, wherein the object side surface of the sixth lens is a concave surface, and the image side surface is a convex surface; and a seventh lens element with a concave image-side surface, wherein the maximum field angle FOV of the optical imaging lens meets the condition that FOV is larger than 100 degrees and smaller than 120 degrees; the half ImgH of the diagonal length of the effective pixel area on the imaging surface of theoptical imaging lens meets the condition that ImgH is greater than 4.5 mm; and the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaginglens satisfy f / EPD<2.

Description

[0001] Divisional Application Statement [0002] This application is a divisional application of the Chinese invention patent application submitted on May 26, 2020 with the title of invention "Optical Imaging Lens" and application number 202010454282.8. technical field [0003] The present application relates to the field of optical elements, more specifically, to an optical imaging lens. Background technique [0004] With the rapid development of portable smart electronic devices such as mobile phones, and the wide application of camera modules on them, the trend of users using mobile phones to replace traditional smart cameras is becoming more and more obvious. Although the performance of the traditional smart camera is still powerful, the camera function on the portable smart electronic device is also constantly improved and perfected. [0005] At present, the mainstream mobile phone camera modules on the market usually use a multi-lens mode, such as a combination of an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0045G02B13/18G02B13/06G02B9/64G02B27/0025
Inventor 张佳莹戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD