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Camera lens

A camera lens and lens technology, applied in the field of camera lenses, can solve problems such as inability to meet imaging requirements

Active Publication Date: 2017-06-13
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous development of portable electronic products such as smart phones, higher requirements are put forward for the camera lens, especially for situations such as insufficient light (such as rainy days, dusk, etc.), hand shake, etc., so the aperture number of 2.0 or above Fno has been unable to meet higher-order imaging requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Refer to the following Figure 1 to Figure 2D An imaging lens according to Embodiment 1 of the present application will be described. figure 1 A schematic structural diagram of an imaging lens according to Embodiment 1 of the present application is shown.

[0079] Such as figure 1 As shown, the camera lens includes seven lenses E1-E7 arranged in sequence from the object side to the imaging side along the optical axis. The first lens E1 has object side S1 and image side S2; the second lens E2 has object side S3 and image side S4; the third lens E3 has object side S5 and image side S6; the fourth lens E4 has object side S7 and image side S8; the fifth lens E5 has an object side S9 and an image side S10; the sixth lens E6 has an object side S11 and an image side S12; and the seventh lens E7 has an object side S13 and an image side S14. Optionally, the camera lens may further include a filter E8 having an object side S15 and an image side S16, and the filter E8 may be us...

Embodiment 2

[0098] Refer to the following Figure 3 to Figure 4D An 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 imaging lens according to Embodiment 2 of the present application is shown.

[0099] Such as image 3 As shown, the camera lens includes seven lenses E1-E7 arranged in sequence from the object side to the imaging side along the optical axis. The first lens E1 has object side S1 and image side S2; the second lens E2 has object side S3 and image side S4; the third lens E3 has object side S5 and image side S6; the fourth lens E4 has object side S7 and image side S8; the fifth lens E5 has an object side S9 and an image side S10; the sixth lens E6 has an object side S11 and an image side S12; and the seventh lens E7 has an object side S13 and an image side S14. Op...

Embodiment 3

[0109] Refer to the following Figure 5 to Figure 6D An imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an imaging lens according to Embodiment 3 of the present application is shown.

[0110] Such as Figure 5 As shown, the camera lens includes seven lenses E1-E7 arranged in sequence from the object side to the imaging side along the optical axis. The first lens E1 has object side S1 and image side S2; the second lens E2 has object side S3 and image side S4; the third lens E3 has object side S5 and image side S6; the fourth lens E4 has object side S7 and image side S8; the fifth lens E5 has an object side S9 and an image side S10; the sixth lens E6 has an object side S11 and an image side S12; and the seventh lens E7 has an object side S13 and an image side S14. Optionally, the camera lens may further include a filter E8 having an object side S15 and an image side S16, and the filter E8 may be used ...

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Abstract

The invention relates to a camera lens. The camera lens has the total effective focal length f and entrance pupil diameter EPD, and the camera lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from the object side to the image side along the optical axis. The first lens has positive power, and the object side face of the first lens is a convex face; the second lens has positive power, and the object side face and the image side face of the second lens are convex faces; the third lens has negative power, the fourth lens and the fifth lens each have positive power or negative power, the sixth lens has positive power or negative power, and the image side face of the sixth lens is a concave face at the paraxial position; the seventh lens has negative power, and the image side face of the seventh lens is a concave face at the paraxial position, wherein the total effective focal length f and entrance pupil diameter EPD meet the formula f / EPD<=1.9.

Description

technical field [0001] The present application relates to a photographic lens, and more particularly, the present application relates to a photographic lens including seven lenses. Background technique [0002] In recent years, with the development of science and technology, portable electronic products have gradually emerged, and portable electronic products with camera functions have been more favored by people. Therefore, the market demand for camera lenses suitable for portable electronic products has gradually increased. As portable electronic products tend to be miniaturized, the total length of the lens is limited, which increases the difficulty of lens design. The photosensitive element of the currently commonly used camera lens is generally a CCD (Charge-Coupled Device, photosensitive coupling element) or a CMOS (Complementary Metal-Oxide Semiconductor, complementary metal oxide semiconductor element). With the improvement of performance and size reduction of CCD a...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
Inventor 杨健闻人建科
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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