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Optical imaging lens
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An optical imaging lens and lens technology, applied in optics, optical components, lenses, etc., to achieve high imaging quality
Active Publication Date: 2021-10-29
ZHEJIANG SUNNY OPTICAL CO LTD
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Abstract
Description
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[0005] However, in order to achieve the characteristics of large image area, large aperture, and ultra-thin, new challenges have been put forward in the field of lens design. The previous five-element or six-element optical system structure is not enough to meet these challenges. Seven-element The traditional optical imaging system may gradually become the mainstream
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Embodiment 1
[0062] Refer to the following Figure 1 to Figure 2C 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.
[0063] Such as figure 1 As shown, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens Lens E6, seventh lens E7, filter E8 and imaging surface S17.
[0064]The first lens E1 has positive refractive power, its object side S1 is convex, and the image side S2 is concave; the second lens E2 has positive refractive power, its object side S3 is convex, and the image side S4 is concave; the third lens E3 has a negative Refractive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has positive refraction, t...
Embodiment 2
[0076] Refer to the following Figure 3 to Figure 4C 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 optical imaging lens according to Embodiment 2 of the present application is shown.
[0077] Such as image 3 As shown, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens Lens E6, seventh lens E7, filter E8 and imaging surface S17.
[0078] The first lens E1 has positive refractive power, its object side S1 is convex, and the image side S2 is concave; the second lens E2 has positive refractive power, its object side S3 is convex, and the image side S4 is concave; the third lens E3 has a negat...
Embodiment 3
[0087] Refer to the following Figure 5 to Figure 6C 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.
[0088] Such as Figure 5 As shown, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens Lens E6, seventh lens E7, filter E8 and imaging surface S17.
[0089] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is concave; the second lens E2 has negative refractive power, its object side S3 is convex, and its image side S4 is concave; the third lens E3 has Negative refractive power, the object side S5 is convex, and the image side S6 is concave; the fourth lens E4 has positive refractive p...
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Abstract
The invention discloses an optical imaging lens which sequentially comprises a first lens with positive focal power, a second lens with focal power, a third lens with negative focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with focal power, and a seventh lens with focal power from an object side to an image side along an optical axis, wherein the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a concave surface; the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a concave surface; and the object side surface of the seventh lens is a concave surface. The effective focal length f1 of the first lens and the curvature radius R1 of the object side surface of the first lens satisfy 1.5<f1 / R1<3.5, and the spacing distance T45 between the fourth lens and the fifth lens on the optical axis and the spacing distance T23 between the second lens and the third lens on the optical axis satisfy 0.5<T45 / T23<1.5.
Description
[0001] Divisional Application Statement [0002] This application is a divisional application of the Chinese invention patent application with the title of "Optical Imaging Lens" and application number 201910610430.8 submitted on July 3, 2019. technical field [0003] The present application relates to an optical imaging lens, and more particularly, to an optical imaging lens including seven lenses. Background technique [0004] With the rapid development of portable electronic devices such as smart phones, consumers have higher and higher requirements for matching camera lenses on portable electronic devices. Especially for the main camera lens of smartphones, it is hoped that it can have the characteristics of large image area, large aperture, and ultra-thin at the same time. Large image area means higher pixels and imaging resolution; large aperture represents more effective luminous flux and higher signal-to-noise ratio during imaging, which is conducive to the image qu...
Claims
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Application Information
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