Optical imaging system

An optical imaging system and optical axis technology, applied in optics, optical components, instruments, etc., can solve problems such as increasing the difficulty of optical system design, and achieve high resolution and high imaging quality

Pending Publication Date: 2019-02-19
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The super large working image area means higher image resolution, and the short total system length means that the lens can be thinner and lighter. However, the super large working image area and short system length greatly improve the design of the optical system while reducing the cost. difficulty

Method used

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Embodiment 1

[0066] 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.

[0067] like figure 1 As shown, the optical imaging system according to the exemplary embodiment of the present application includes sequentially along the optical axis from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens E4 , the fifth lens E5, the filter E6 and the imaging surface S13.

[0068] 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, its object side S5 is concave, and its image side S6 is concave. ...

Embodiment 2

[0094] 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.

[0095] like image 3 As shown, the optical imaging system according to the exemplary embodiment of the present application includes sequentially along the optical axis from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens E4 , the fifth lens E5, the filter E6 and the imaging surface S13.

[0096] 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 im...

Embodiment 3

[0108] 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.

[0109] like Figure 5 As shown, the optical imaging system according to the exemplary embodiment of the present application includes sequentially along the optical axis from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, and a fourth lens E4 , the fifth lens E5, the filter E6 and the imaging surface S13.

[0110] 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, its object side S5 is concave, and its image side S6 is concave...

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PUM

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Abstract

The present application discloses an optical imaging system. The imaging system comprises a first lens, a second lens, a third lens, a fourth lens, and a fifth lens in order from an object side to animage side along an optical axis. The first lens has a positive focal power, the object side is a convex surface, and the image side is a concave surface. The second lens has a negative focal power. The third lens has a negative focal power. The fourth lens has a positive focal power, and the image side is a convex surface. The fifth lens has a negative focal power, and the object side is a concave surface. The distance TTL of the object side of the first lens to the imaging side of the optical imaging system on the optical axis and the half of the diagonal length ImgH of the effective pixel area on the imaging side of the optical imaging system satisfy 1 < TTL / ImgH < 1.3.

Description

technical field [0001] The present application relates to an optical imaging system, and more particularly, to an optical imaging system including five lenses. Background technique [0002] With the recent rapid development of the smart phone business and tablet business, the optical imaging system applied to it is facing the challenges of high pixel, low cost, and ultra-thin. For most mid-to-low-end models, the five-element lens system is still the main choice for cost control reasons. [0003] In recent years, major smart terminal manufacturers are increasingly pursuing high-resolution and thinner lenses, and super-large working image areas and short system lengths have become the main factors that manufacturers pay attention to. The super large working image area means higher image resolution, and the short total system length means that the lens can be thinner and lighter. However, the super large working image area and short system length greatly improve the design of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 徐武超戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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