Optical lens group

一种光学镜片、光学镜头的技术，应用在光学、光学元件、仪器等方向，能够解决不利手机和数字相机薄型化、距离大等问题，达到提升产品良率、良好球差的效果

Active Publication Date: 2017-05-31
GENIUS ELECTRONICS OPTICAL XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] As far as the six-piece lens structure is concerned, in previous inventions, the distance from the object side of the first lens to the imaging surface on the optical axis is large, which is not conducive to the thinning of mobile phones and digital cameras
However, optical lens design does not simply reduce the proportion of a lens with good imaging quality to produce an optical lens with both image quality and miniaturization. The design process not only involves material characteristics, but also production and assembly yields. practical problems

Method used

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Experimental program
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Embodiment 1

[0153] See Image 6 , Illustrates the first embodiment of the optical lens group 1 of the present invention. Please refer to Figure 7A for the longitudinal spherical aberration on the imaging surface 71 of the first embodiment, and refer to Figure 7B for the astigmatic field aberration in the sagittal direction. Please refer to FIG. 7C for astigmatic aberration and FIG. 7D for distortion aberration. The Y-axis of each spherical aberration diagram in all embodiments represents the field of view, and the highest point is 1.0. The Y-axis of each astigmatism diagram and distortion diagram in the embodiments represents the image height, and the system image height is 3.528 mm.

[0154] The optical lens group system 1 of the first embodiment is mainly composed of six lenses with refractive power, a filter 70, an aperture 80, and an imaging surface 71. The aperture 80 is arranged between the object side 2 and the first lens 10. The filter 70 can prevent light of a specific wavelength ...

Embodiment 2

[0171] See Figure 8 , Exemplifies the second embodiment of the optical lens group 1 of the present invention. Please note that starting from the second embodiment, in order to simplify and clearly express the drawings, only the different surface shapes of each lens from the first embodiment are specifically marked on the figure, and the rest are the same as the lens of the first embodiment. For example, concave or convex surfaces are not marked separately. Please refer to Figure 9A for the longitudinal spherical aberration on the imaging surface 71 of the second embodiment, refer to Figure 9B for the astigmatic aberration in the sagittal direction, refer to Figure 9C for the astigmatic aberration in the tangential direction, and refer to Figure 9D for the distortion aberration . The design of the second embodiment is similar to that of the first embodiment, except that the relevant parameters such as the radius of curvature, lens refractive power, lens curvature radius, lens ...

Embodiment 3

[0174] See Picture 10 , Exemplifies the third embodiment of the optical lens group 1 of the present invention. Please refer to Fig. 11A for the longitudinal spherical aberration on the imaging surface 71 of the third embodiment, Fig. 11B for the astigmatic aberration in the sagittal direction, Fig. 11C for the astigmatic aberration in the tangential direction, and Fig. 11D for the distortion aberration . The design of the third embodiment is similar to that of the first embodiment, except that the radius of curvature, lens refractive power, lens curvature radius, lens thickness, lens aspheric coefficient or back focal length and other related parameters are different, and the fifth lens 50 The side surface 51 has a concave surface 53' located in the vicinity of the optical axis.

[0175] The detailed optical data of the third embodiment are as Figure 26 As shown, the aspheric data is as Figure 27 As shown, TTL is 5.4403 mm, system image height is 3.528 mm, Fno is 1.7302, and ...

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Abstract

The invention discloses an optical lens group. There is no air gap between first and second lenses, an object side of a third lens includes a concave part positioned in an area near to an optical axis, and an image side of a sixth lens includes a convex part positioned in an area near to the circumference. Upsilon 3 represents an Abbe coefficient of the third lens, upsilon 5 represents an Abbe coefficient of a fifth lens, and the absolute value of a difference between upsilon3 and upsilon5 <=25.

Description

Technical field [0001] The invention relates to an optical imaging lens for shooting images and video. Specifically, the present invention particularly refers to an optical lens set for shooting images and videos, and is applied to portable electronic products, such as mobile phones, cameras, tablet computers, or personal digital assistants (Personal Digital Assistants, PDAs). ) Waiting. Background technique [0002] The specifications of consumer electronic products are changing with each passing day, and the pursuit of lightness, thinness and shortness has not slowed down. Therefore, the specifications of key components of electronic products such as optical lenses must also be continuously improved to meet consumer needs. The most important characteristics of optical lenses are nothing more than imaging quality and volume. Among them, in terms of image quality, with the advancement of image sensing technology, consumers' requirements for image quality will also increase. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06
CPCG02B13/0045G02B13/06G02B13/02G02B9/62G02B5/005G02B27/0025
Inventor 公金辉高田芳何媚婷
Owner GENIUS ELECTRONICS OPTICAL XIAMEN
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