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Camera lens

A camera lens and lens technology, applied in the field of camera lens, can solve the problem of insufficient diopter distribution shape and the like

Active Publication Date: 2017-08-01
AAC OPTICS (CHANGZHOU) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The imaging lens disclosed in Example 1 of Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2015-175876) is composed of the above six lenses, but the diopter distribution of the first lens and the shape of the third lens are insufficient, so 2ω=83.4 ° wide angle
[0007] The imaging lens disclosed in Example 6 of Patent Document 2 (Japanese Unexamined Patent Publication No. 2015-121730) is composed of the above six lenses, but the diopter distribution of the first lens and the shape of the third lens are insufficient, so 2ω=74.0 ° wide angle

Method used

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Examples

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Embodiment 1

[0153] figure 2 It is a diagram illustrating the configuration of the imaging lens LA in Example 1. The data in Table 1 include: the radius of curvature R of the object side and the image side of the first lens L1 to the sixth lens L6 constituting the imaging lens LA in Example 1, the center thickness of the lens, the axial distance d between the lenses, and the refractive index n d, Abbe number v d. The data in Table 2 include: conic coefficient k, aspheric coefficient.

[0154] 【Table 1】

[0155]

[0156] 【Table 2】

[0157]

[0158] Subsequent Table 5 lists the numerical values ​​corresponding to the parameters specified in the conditional formulas (1)-(5) in Examples 1 and 2.

[0159] As shown in Table 5, Example 1 satisfies conditional formulas (1)-(5).

Embodiment 2

[0162] Image 6It is a diagram illustrating the configuration of the imaging lens LA in Example 2. The data in Table 2 includes: the radius of curvature R of the object side and the image side of the first lens L1 to the sixth lens L6 constituting the imaging lens L A in Example 2, the center thickness of the lens, the axial distance d between the lenses, and the refractive index n d, Abbe number v d. The data in Table 4 include: conic coefficient k, aspheric coefficient.

[0163] 【table 3】

[0164]

[0165] 【Table 4】

[0166]

[0167] As shown in Table 5, Example 2 satisfies conditional formulas (1)-(5).

[0168] The axial aberration of camera lens LA among the embodiment 2 sees Figure 7 , vertical axis chromatic aberration see Figure 8 , field curvature and distortion see Figure 9 shown. Such as Figure 7-9 As shown, the imaging lens LA in embodiment 2 is 2ω=47.5°, TTL=5.382mm, and the lens is a narrow-angle, small lens, so it is not difficult to understand...

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Abstract

The invention provides a camera lens, which has excellent optical features, has narrow angle, and is small-size. The camera lens is composed of six lens, and is provided with, beginning from object side, a first lens having positive diopter, a second lens having negative diopter, a third having negative diopter, a fourth lens having positive diopter, a fifth lens having negative diopter, and a sixth lens having negative diopter; herein, all specified conditions are satisfied.

Description

[0001] 【Technical field】 [0002] The invention relates to a camera lens, in particular to a camera lens suitable for mobile phone camera components, WEB cameras and the like using high-pixel CCD, CMOS and other camera elements. The imaging lens of the present invention is composed of 6 small lenses with excellent optical characteristics, a full picture angle (hereinafter referred to as 2ω), a narrow angle of 50° or less, and a small size. [0003] 【Background technique】 [0004] In recent years, various imaging devices using imaging elements such as CCDs and CMOSs ​​have spread widely. With the development of miniaturization and high performance of imaging elements, the society needs more excellent optical characteristics, narrow angle, and compact imaging lenses. [0005] The technological development related to the imaging lens consisting of 6 compact lenses with excellent optical characteristics is advancing step by step. The proposed scheme is that the camera lens is com...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B9/62G02B13/18
Inventor 寺冈弘之
Owner AAC OPTICS (CHANGZHOU) CO LTD
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