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Optical Imaging Lens

An optical imaging lens and imaging technology, which is applied in the field of four-piece optical imaging lens, can solve the problems such as the decrease of light input and the increase of aperture value, and achieve the effects of reducing the aperture value, high assembly, and increasing the focal length of the system

Active Publication Date: 2021-06-11
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the system focal length of the optical imaging lens is increased, the aperture value will increase and the amount of incoming light will decrease. Therefore, how to increase the system focal length of the optical imaging lens while reducing the aperture value, maintain imaging quality and improve assembly and manufacturing yield is a subject that needs to be explored in depth

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  • Optical Imaging Lens
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[0163] Compared with the first embodiment, the longitudinal spherical aberration, field curvature aberration and distortion aberration in the sagittal and meridional directions of this embodiment are smaller, the aperture value is smaller, and the total length of the system is shorter.

[0164] About EFL, Fno, HFOV, ImgH, T1, G12, T2, G23, T3, G34, T4, G4F, TTF, GFP, V1, V2, V3, V4, BFL, ALT, AAG, TL, TTL of this embodiment , HFOV*Fno / EFL, TTL / ALT, TL / BFL, EFL / ALT, TL / (T1+G12+T2), TTL / (T1+G23+T3), TTL / (T1+G34+T4), AAG Values ​​of / T2, AAG / T3, AAG / T4, (T1+G12+G23) / T2, (T1+G12+G34) / T3, (T1+G23+G34) / T4, EFL / ImgH and TL / ImgH , please refer to Figure 38 .

[0165] Please also refer to Figure 34 to Figure 37 ,in Figure 34A schematic diagram showing the cross-sectional structure of the optical imaging lens 8 according to the eighth embodiment of the present invention, Figure 35 A schematic diagram showing the longitudinal spherical aberration and various aberrations of the o...

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Abstract

The invention provides an optical imaging lens, which sequentially includes first, second, third and fourth lenses from the object side to the image side. The present invention controls the concave-convex curved surface arrangement of each lens surface, and meets the half angle of view angle (HFOV) of the optical imaging lens, the aperture value (Fno) of the optical imaging lens and the system focal length (EFL) of the optical imaging lens. The relationship is HFOV *Under the limit of Fno / EFL≦2.400, the image quality can be maintained and the length of the lens can be reduced, while increasing the focal length of the system and reducing the aperture value, in order to achieve the effects of low cost, high assembly and yield.

Description

technical field [0001] The invention relates to an optical imaging lens, in particular to a four-chip optical imaging lens. Background technique [0002] The specifications of portable electronic products are changing with each passing day, and its key component - the optical imaging lens is also becoming more diversified. The application is not limited to shooting images and videos, but also needs to be telephoto. With the wide-angle lens, the optical zoom function can be achieved; If the system focal length of the telephoto lens is longer, the magnification of the optical zoom is higher. However, when the system focal length of the optical imaging lens is increased, the aperture value will increase and the amount of incoming light will decrease. Therefore, how to increase the system focal length of the optical imaging lens while reducing the aperture value, maintain imaging quality and improve assembly and manufacturing yield It is a subject that needs to be explored in d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/004G02B9/36G02B13/18G02B9/34G02B5/005G02B27/0025G02B13/002
Inventor 谢宏健张兰兰周欧
Owner GENIUS ELECTRONICS OPTICAL XIAMEN