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An optical lens group, an image capturing apparatus and an electronic apparatus

A technology of optical lens group and lens, which is applied in the direction of optics, optical components, instruments, etc., and can solve problems such as difficult to mount, highly distorted, and bent

Active Publication Date: 2016-11-23
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the known optical system is difficult to be mounted on thin and light electronic devices because it is difficult to meet the requirements of large aperture and short overall length.
[0004] Although the six-element optical system has been further developed at present, while the product is moving toward large aperture and miniaturized design, problems such as image curvature, height distortion and poor relative illumination often occur due to poor surface configuration of the lens.

Method used

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  • An optical lens group, an image capturing apparatus and an electronic apparatus
  • An optical lens group, an image capturing apparatus and an electronic apparatus
  • An optical lens group, an image capturing apparatus and an electronic apparatus

Examples

Experimental program
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Effect test

no. 1 example

[0113] Please refer to figure 1 and figure 2 ,in figure 1 A schematic diagram showing an imaging device according to the first embodiment of the present invention, figure 2 From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment. Depend on figure 1 It can be seen that the image capturing device of the first embodiment includes an optical lens group (not another number) and an electronic photosensitive element 195 . The optical lens group includes an aperture 100, a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, a sixth lens 160, a seventh lens 170, Infrared ray filtering filter element (IR-cut filter) 180 and imaging surface 190, and electronic photosensitive element 195 is arranged on the imaging surface 190 of optical lens group, wherein the lens with refractive power in the optical lens group is seven (110-170 ), there is a separation distance between any two adjacent lenses...

no. 2 example

[0149] Please refer to image 3 and Figure 4 ,in image 3 A schematic diagram showing an imaging device according to a second embodiment of the present invention, Figure 4 From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment. Depend on image 3 It can be known that the image capturing device of the second embodiment includes an optical lens group (not another number) and an electronic photosensitive element 295 . The optical lens group includes an aperture 200, a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, a sixth lens 260, a seventh lens 270, Infrared ray filtering filter element 280 and imaging surface 290, and electronic photosensitive element 295 is arranged on the imaging surface 290 of the optical lens group, wherein there are seven lenses (210-270) with refractive power in the optical lens group, any two adjacent There is a distance between the lenses with refract...

no. 3 example

[0166] Please refer to Figure 5 and Figure 6 ,in Figure 5 A schematic diagram showing an imaging device according to a third embodiment of the present invention, Figure 6 From left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment. Depend on Figure 5 It can be seen that the imaging device of the third embodiment includes an optical lens group (not another number) and an electronic photosensitive element 395 . The optical lens group includes an aperture 300, a first lens 310, a second lens 320, a third lens 330, a fourth lens 340, a fifth lens 350, a sixth lens 360, a seventh lens 370, Infrared ray filtering filter element 380 and imaging surface 390, and electronic photosensitive element 395 is arranged on the imaging surface 390 of the optical lens group, wherein there are seven lenses (310-370) with refractive power in the optical lens group, any two adjacent There is a distance between the lenses with refractive power...

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PUM

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Abstract

The invention discloses an optical lens group, an imaging device and an electronic device. The optical lens group sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from the object side to the image side. The first lens has positive refractive power, and its object-side surface is convex near the optical axis. The second lens has refractive power. The third lens has refractive power. The fourth lens has refractive power. The fifth lens has refractive power, and its image-side surface near the optical axis is concave. The sixth lens has refractive power, its object-side surface near the optical axis is concave, and its object-side surface and image-side surface are both aspherical. The seventh lens has refractive power. The image-side surface near the optical axis is concave, and the image-side surface off-axis includes at least one convex surface. Both the object-side surface and the image-side surface are aspherical. When certain conditions are met, it can have a large aperture, a short overall length and a large viewing angle. The invention also discloses an image taking device and an electronic device with the above-mentioned optical lens group.

Description

technical field [0001] The present invention relates to an optical lens group and an image-taking device, and in particular to a miniaturized optical lens group and an image-taking device applied to an electronic device. Background technique [0002] In recent years, with the rise of electronic products with photographic functions, the demand for optical systems has increased day by day. The photosensitive element of the general optical system is nothing more than two types of photosensitive coupling device (Charge Coupled Device, CCD) or complementary metal oxide semiconductor device (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor), and with the improvement of semiconductor process technology, making The pixel size of the photosensitive element is shrinking, and the optical system is gradually developing into the high-pixel field, so the requirements for image quality are also increasing. [0003] Traditional optical systems mounted on electronic products most...

Claims

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Application Information

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IPC IPC(8): G02B13/18G02B13/00
Inventor 陈纬彧
Owner LARGAN PRECISION
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