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Camera lens system, imaging device and electronic device

A lens system and lens technology, applied in optical components, instruments, optics, etc., can solve problems such as the inability to effectively control the volume of the system, and the difficulty in taking into account the imaging quality of the peripheral image and the central image of the system.

Active Publication Date: 2018-10-19
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although existing electronic products have adopted an optical system composed of four lenses, in the existing optical system configured with four lenses, due to the configuration problem of the overall refractive power, the volume of the system cannot be effectively controlled, which makes the system It is difficult to take into account the good imaging quality of peripheral images and central images

Method used

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  • Camera lens system, imaging device and electronic device
  • Camera lens system, imaging device and electronic device
  • Camera lens system, imaging device and electronic device

Examples

Experimental program
Comparison scheme
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 imaging lens system (not another number) and an electronic photosensitive element 170 . The imaging lens system includes a first lens 110, an aperture 100, a second lens 120, a third lens 130, a fourth lens 140, an infrared filter 150, and an imaging surface 160 from the object side to the image side; 170 is arranged on the imaging surface 160 of the imaging lens system; there are four lenses (110-140) with refractive power in the imaging lens system, and there is an air gap between any two adjacent lenses with refractive power on the optical axis.

[0114] The first lens 110 has positive refra...

no. 2 example

[0155] 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 first embodiment. Depend on image 3 It can be seen that the image capturing device of the second embodiment includes an imaging lens system (not another number) and an electronic photosensitive element 270 . The imaging lens system includes an aperture 200, a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, an infrared filter 250, an imaging surface 260, and an electronic photosensitive element from the object side to the image side. 270 is arranged on the imaging surface 260 of the imaging lens system; there are four lenses (210-240) with refractive power in the imaging lens system, and there is an air gap between any two adjacent lenses with refractive power on the optical axis.

[0156...

no. 3 example

[0169] Please refer to Figure 5 and Image 6 ,in Figure 5 A schematic diagram showing an imaging device according to a third embodiment of the present invention, Image 6 From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment. Depend on Figure 5 It can be seen that the imaging device of the third embodiment includes an imaging lens system (not another number) and an electronic photosensitive element 370 . The imaging lens system includes an aperture 300, a first lens 310, a second lens 320, a third lens 330, a fourth lens 340, an infrared filter filter 350, and an imaging surface 360 ​​in order from the object side to the image side, and the electronic photosensitive element 370 is arranged on the imaging surface 360 ​​of the imaging lens system; wherein, there are four lenses (310-340) with refractive power in the imaging lens system, and there is air between any two adjacent lenses with refractive power on the optic...

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PUM

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Abstract

The invention relates to a shooting lens system, an image capture device and an electronic device. The shooting lens system first to fourth lenses from the object side to the image side sequentially. the first lens has a positive refraction power, and the second lens has a negative refraction power. The third lens has a positive refraction power, the surface of the image side of the third lens is a recessed surface, and the surfaces of the object and image sides of the third lens are both aspheric; and the third lens includes a refraction power, the surface of the image side of the fourth lens is a recessed surface, and the surfaces of the object and image sides of the fourth lens are both aspheric. The shooting lens system further comprises an aperture, and no lens with refraction power exists between the aperture and first lens. The shooting system includes four lenses with the refraction power, an air gap exists between any two lenses with refraction power, when certain condition is satisfied, light is prevented from total reflection due to too large incident or emergent angle, so that space at the near-object side is sufficient and an assembling capability is higher. The invention also discloses the shooting device with the shooting lens system and the electronic device including the shooting device.

Description

technical field [0001] The invention relates to an imaging lens system and an image capturing device, and in particular to a miniaturized imaging lens system and an image capturing 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 coupled device (Charge Coupled Device, CCD) or complementary metal oxide semiconductor element (Complementary Metal-Oxide Semiconductor Sensor, CMOS sensor), and with the advancement of semiconductor technology, The pixel size of the photosensitive element is reduced, and the optical system is gradually developing into the high-pixel field, so the requirements for imaging quality are also increasing. [0003] Although existing electronic products have adopted an optical system composed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18
Inventor 黄歆璇
Owner LARGAN PRECISION