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Optical imaging lens

A technology of optical imaging lens and optical imaging system, which is applied in optics, optical components, instruments, etc., can solve problems such as the difficulty of optical system design, and achieve the effect of miniaturization and small optical distortion

Pending Publication Date: 2020-09-18
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Major terminal manufacturers have put forward more new requirements for lens specifications, which poses more difficult challenges to the design of optical systems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] figure 1 Shown is a schematic structural view of the optical imaging lens according to the first embodiment of the present invention, as figure 1 As shown, the imaging lens assembly includes sequentially from the object side to the image side, the stop STO, the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the filter E6 and Imaging surface S13.

[0074] Wherein, the first lens E1 has negative refractive power, its object side S1 is concave, 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 convex; the third lens E3 has negative refractive power, its object side S5 is convex, and its image side S6 is concave; the fourth lens E4 has positive refractive power, its object side S7 is concave, and its image side S8 is convex; the fifth lens E5 has negative optical focus degree, the object side S9 is convex, and the image side S10 is concave...

Embodiment 2

[0101] Figure 6 Shown is a schematic structural view of the optical imaging lens of the second embodiment of the present application, as Figure 6 As shown, the imaging lens assembly includes sequentially from the object side to the image side, the stop STO, the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the filter E6 and Imaging surface S13.

[0102] Wherein, the first lens E1 has negative refractive power, its object side S1 is concave, 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 convex; the third lens E3 has negative refractive power, its object side S5 is convex, and its image side S6 is concave; the fourth lens E4 has positive refractive power, its object side S7 is concave, and its image side S8 is convex; the fifth lens E5 has negative optical focus degree, the object side S9 is convex, and the image side S10 is concave. Th...

Embodiment 3

[0115] Figure 11 Shown is a schematic structural view of the optical imaging lens according to the third embodiment of the present application, as Figure 11 As shown, the imaging lens assembly includes sequentially from the object side to the image side, the stop STO, the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the filter E6 and Imaging surface S13.

[0116] Wherein, the first lens E1 has negative refractive power, its object side S1 is concave, 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 convex; the third lens E3 has negative refractive power, its object side S5 is convex, and its image side S6 is concave; the fourth lens E4 has positive refractive power, its object side S7 is concave, and its image side S8 is convex; the fifth lens E5 has negative optical focus degree, the object side S9 is convex, and the image side S10 is c...

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Abstract

The invention discloses an optical imaging lens, which comprises five lenses in sequence from an object side to an image side: a first lens with negative focal power, a second lens having focal power,a third lens having negative focal power, a fourth lens having focal power, a fifth lens having focal power, wherein the object side surface of the first lens is a concave surface, and the image sidesurface of the first lens is a concave surface; and the effective focal length f1 of the first lens and half Semi-FOV of a maximum field angle of an optical imaging system satisfy the following formula: 9mm<2><f12*tan(Semi-FOV)<15mm<2>. According to the optical imaging lens, the optical imaging system with wide angle and small optical distortion is provided by controlling related parameters of the lenses.

Description

technical field [0001] The invention relates to an optical imaging lens, in particular to an optical imaging lens composed of five lenses. Background technique [0002] In recent years, with the development of science and technology, portable electronic products gradually rise, especially portable electronic products with camera functions are more favored by people. Major terminal manufacturers have put forward more new requirements for lens specifications, which poses more difficult challenges to the design of optical systems. The invention provides an optical imaging system with wide angle and small optical distortion. Contents of the invention [0003] Based on the above problems, the present invention proposes an optical lens with five lenses, which is an optical imaging system with wide angle and small optical distortion. [0004] The invention discloses an optical imaging lens, which includes five lenses, which are a first lens, a second lens, a third lens, a fourt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0045G02B13/06G02B13/18
Inventor 姜超群戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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