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optical imaging system

An optical imaging system, optical axis technology, applied in optics, optical components, instruments, etc., can solve problems such as limiting the miniaturization of optical imaging systems and hindering the development of miniaturization of smartphones, and achieve miniaturized imaging quality and good imaging quality. , the effect of optimizing optical parameters

Active Publication Date: 2022-05-03
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditionally, in order to achieve high-definition optical imaging systems, it is necessary to increase the total length of the optical imaging system to increase its zoom factor, but this will severely limit the development of the miniaturization of the optical imaging system, thereby hindering the development of the miniaturization of smartphones

Method used

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Experimental program
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Embodiment 1

[0065] Refer to the following Figure 1 to Figure 2D An optical imaging system according to Embodiment 1 of the present application is described. figure 1 A schematic structural diagram of an optical imaging system according to Embodiment 1 of the present application is shown.

[0066] Such as figure 1 As shown, the optical imaging system includes in sequence from the object side to the image side along the second direction: a prism T, a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, and a fifth lens E5, sixth lens E6, seventh lens E7, filter E8 and imaging surface S17.

[0067]The prism T has a light incident surface, a light reflection surface and a light exit surface. 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 positive refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has negative refractive...

Embodiment 2

[0079] Refer to the following Figure 3 to Figure 4D An optical imaging system 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 system according to Embodiment 2 of the present application is shown.

[0080] Such as image 3 As shown, the optical imaging system includes in sequence from the object side to the image side: a prism T, a diaphragm 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.

[0081] The prism T has a light incident surface, a light reflection surface and a light exit surface. 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 positive refracti...

Embodiment 3

[0091] Refer to the following Figure 5 to Figure 6D An optical imaging system according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging system according to Embodiment 3 of the present application is shown.

[0092] Such as Figure 5 As shown, the optical imaging system includes in sequence from the object side to the image side: a prism T, a diaphragm 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.

[0093] The prism T has a light incident surface, a light reflection surface and a light exit surface. 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 positive refractive power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has negative refractive power, its object si...

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Abstract

The present application discloses an optical imaging system, which sequentially includes from the object side to the image side along the optical axis: a prism, a diaphragm, and a first lens with refractive power, a second lens, a third lens, and a fourth lens , the fifth lens, the sixth lens and the seventh lens. The prism reflects light incident to the prism along the first direction to exit the prism along the second direction. The diaphragm to the seventh lens are sequentially arranged along the second direction from the prism to the image side. The second lens has positive power, and its image side is concave; the third lens has negative power; the fourth lens has negative power, and its image side is concave; the fifth lens has positive power. At least one of the mirror surfaces from the object side of the first lens to the image side of the seventh lens is an aspheric mirror.

Description

technical field [0001] The present application relates to the field of optical elements, in particular, to an optical imaging system. Background technique [0002] In recent years, portable electronic products such as smart phones have developed rapidly, and users have increasingly strict requirements on the functions of smart phones, especially the camera function of mobile phones. With the development trend of miniaturization of smart phones, the optical imaging system mounted on smart phones tends to develop in the direction of high-definition and miniaturization. Traditionally, in order to achieve high-definition optical imaging systems, it is necessary to increase the total length of the optical imaging system to increase its zoom factor, but this will severely limit the development of the miniaturization of the optical imaging system, thereby hindering the development of the miniaturization of smartphones. Contents of the invention [0003] One aspect of the present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18G02B9/64G02B5/04
Inventor 李洋贺凌波黄林戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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