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Camera lens group

A camera lens and lens group technology, applied in optical components, optics, instruments, etc., can solve the problems of portrait photography stay, unable to achieve theoretical breakthroughs, etc., and achieve optimization of optical parameters, miniaturized imaging quality, and good imaging quality. Effect

Pending Publication Date: 2020-07-28
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Limited by hardware such as chips, the development of portrait photography for portable electronic products such as smart phones has been stuck in hardware improvement and algorithm optimization, and so far has not been able to achieve a breakthrough in principle

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Refer to the following Figure 1 to Figure 2D An imaging lens group according to Embodiment 1 of the present application will be described. figure 1 A schematic structural diagram of an imaging lens group according to Embodiment 1 of the present application is shown.

[0068] Such as figure 1 As shown, the imaging lens group includes in sequence from the object side to the image side: 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 E6, The seventh lens E7, the filter E8 and the imaging surface S17.

[0069]The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is convex. 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 positive refractive power, its object side S5 is convex, and its image side S6 is concave. The fourth lens E4 has negative refractive power, its objec...

Embodiment 2

[0083] Refer to the following Figure 3 to Figure 4D An imaging lens group according to Embodiment 2 of the present application will be 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 imaging lens group according to Embodiment 2 of the present application is shown.

[0084] Such as image 3 As shown, the imaging lens group includes in sequence from the object side to the image side: 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 E6, The seventh lens E7, the filter E8 and the imaging surface S17.

[0085] The first lens E1 has positive refractive power, its object side S1 is convex, and its image side S2 is convex. 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 positive re...

Embodiment 3

[0096] Refer to the following Figure 5 to Figure 6D An imaging lens group according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an imaging lens group according to Embodiment 3 of the present application is shown.

[0097] Such as Figure 5 As shown, the imaging lens group includes in sequence from the object side to the image side: 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 E6, The seventh lens E7, the filter E8 and the imaging surface S17.

[0098] 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 positive 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...

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Abstract

The invention discloses a camera lens group, which sequentially comprises a first lens group with positive focal power and a second lens group with negative focal power; the first lens group sequentially comprises a first lens with focal power, a second lens with focal power and a third lens with focal power along the optical axis and the second lens group sequentially comprises a fourth lens withfocal power, a fifth lens with focal power, a sixth lens with focal power and a seventh lens with focal power along the optical axis. The total effective focal length f of the camera lens group and the entrance pupil diameter EPD of the camera lens group meet the following condition: f / EPD < 1.4; and the effective focal length f1 of the first lens and the spacing distance T34 between the third lens and the fourth lens on the optical axis satisfy 3.0 < f1 / T34 < 5.0.

Description

technical field [0001] The present application relates to the field of optical elements, in particular, to an imaging lens group. Background technique [0002] At present, as the requirements for imaging functions of portable electronic products such as smart phones are gradually improved, portable electronic products such as smart phones also put forward stricter requirements for the optical performance and functional diversity of imaging lenses. At the same time, with the popularity of multi-camera lenses, portrait shooting has become the standard configuration of portable electronic products such as smartphones. Compared with SLR cameras, people are becoming more and more keen on creating photography through portable electronic products such as smartphones. At the same time, with the emergence of various APPs with camera functions, portrait shooting seems to have been integrated into people's lives. [0003] However, the current portrait shooting of portable electronic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18G02B9/64G02B15/1421G02B27/0025
Inventor 胡亚斌张健赵烈烽戴付建
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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