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Optical imaging lens

An optical imaging lens and lens technology, applied in optics, optical components, lenses, etc., can solve the problem of increasing the total optical length of the lens, and achieve the effect of optimizing the surface shape

Active Publication Date: 2022-02-08
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increasing the number of lenses in the lens can effectively improve the imaging quality of the lens, but it will also increase the total optical length of the lens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Refer to the following Figure 1 to Figure 2D An optical imaging lens according to Embodiment 1 of the present application is described. figure 1 is a schematic diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application.

[0086] 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, eighth lens E8, filter E9 and imaging surface S19.

[0087] 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 side S5 is convex, and its image side S6 is concave. The fourth lens E4 has ...

Embodiment 2

[0101] Refer to the following Figure 3 to Figure 4D An optical imaging lens according to Embodiment 2 of the present application is described. image 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown.

[0102] 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, eighth lens E8, filter E9 and imaging surface S19.

[0103]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 side S5 is convex, and its image side S6 is concave. The fourth lens E4 has positi...

Embodiment 3

[0115] Refer to the following Figure 5 to Figure 6D 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.

[0116] 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, eighth lens E8, filter E9 and imaging surface S19.

[0117] 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 side S5 is convex, and its image side S6 is concave. The fourth lens E4 has neg...

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Abstract

The invention discloses an optical imaging lens. The lens sequentially comprises, from the object side to the image side along an optical axis, a first lens withfocal power, a second lens with focal power, a third lens with negative focal power, a fourth lens with focal power and with the object side surface to be a convex surface, a fifth lens with focal power and with the object side surface to be a concave surface, a sixth lens with focal power, a seventh lens with focal power, and an eighth lens with focal power. The edge thickness ET7 of the seventh lens and the center thickness CT7 of the seventh lens on the optical axis meet the condition that ET7 / CT7 is larger than 0.5 and smaller than 1.0.

Description

[0001] divisional application [0002] This application is a divisional application of the Chinese invention patent application with the title of "Optical Imaging Lens" and application number 201911076595.8 submitted on November 6, 2019. technical field [0003] The present application relates to an optical imaging lens, in particular to an optical imaging lens including eight lenses. Background technique [0004] In recent years, with the rapid development of smart terminal devices such as mobile phones, their shooting functions have become more and more technical highlands that mobile phone manufacturers of various brands are competing for. Especially in order to improve the shooting quality of mobile phones, various manufacturers continue to increase the shooting pixels of the lens. At present, the lens shooting pixels of mainstream mobile phones are already above 48 million pixels. Among them, the shooting pixels of the lens with seven lenses can reach 64 million pixel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G03B30/00G02B9/64G02B3/04G02B13/18G02B2003/0093G02B27/0025G02B27/0081G02B13/002
Inventor 陈念张凯元戴付建赵烈烽
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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