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Imaging lens group, imaging device and electronic device

An imaging lens and lens technology, applied in optical components, instruments, optics, etc., can solve problems such as not easy to carry, unsatisfactory, and large lens size, and achieve the effect of improving convenience and balancing aberrations

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] Currently, most of the lenses used in portable electronic devices on the market pursue close-object distance and wide-angle shooting effects, but the optical design of such lenses cannot meet the needs of capturing subtle images in the distance.
The traditional telephoto optical system mostly adopts a multi-chip structure and is equipped with a spherical glass lens. This kind of configuration not only makes the lens too bulky to be carried easily, but also the high unit price of the product also discourages consumers. Therefore, The optical system of the existing technology is no longer able to meet the current general consumer's pursuit of convenience and multi-functional photography needs

Method used

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  • Imaging lens group, imaging device and electronic device
  • Imaging lens group, imaging device and electronic device
  • Imaging lens group, imaging device and electronic device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0125] Please refer to figure 1 and figure 2 ,in figure 1 It is a schematic diagram of an imaging device according to the first embodiment of the present invention, figure 2 A-2C is the spherical aberration, astigmatism and distortion curves of the first embodiment in sequence from left to right. Depend on figure 1 It can be seen that the image capturing device of the first embodiment includes an imaging lens group (not another number) and an electronic photosensitive element 170 . The imaging lens group 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, and the electronic photosensitive element 170 is disposed on the imaging surface 160 of the imaging lens group. The imaging lens group has four lenses with refractive power (110-140), and there is an air gap between any two adjacent lenses with refractive power.

[0126] The first ...

no. 2 example

[0167] Please refer to image 3 and Figure 4 ,in image 3 It is a schematic diagram of an imaging device according to the second embodiment of the present invention, Figure 4 A-4C is the spherical aberration, astigmatism and distortion curves of the second embodiment in order from left to right. Depend on image 3 It can be seen that the image capturing device of the second embodiment includes an imaging lens group (not another number) and an electronic photosensitive element 270 . The imaging lens group includes a first lens 210, an aperture 200, 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 disposed on the imaging surface 260 of the imaging lens group; wherein, there are four lenses with refractive power in the imaging lens group (210-240), and there is an air gap between any two adjacent lenses with refractive power.

[01...

no. 3 example

[0181] Please refer to Figure 5 and Figure 6 ,in Figure 5 It is a schematic diagram of an imaging device according to the third embodiment of the present invention, Figure 6 A-6C is the spherical aberration, astigmatism and distortion curves of the third embodiment in sequence from left to right. Depend on Figure 5 It can be seen that the image capturing device of the third embodiment includes an imaging lens group (not another number) and an electronic photosensitive element 370 . The imaging lens group includes a first lens 310, an aperture 300, a second lens 320, a third lens 330, a fourth lens 340, an infrared filter 350, and an imaging surface 360 ​​in order from the object side to the image side, and the electronic photosensitive element 370 is disposed on the imaging surface 360; wherein, there are four lenses with refractive power in the imaging lens group (310-340), and there is an air gap between any two adjacent lenses with refractive power.

[0182] The ...

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Abstract

The invention relates to an imaging lens group, an image capturing device and an electronic device. The imaging lens group sequentially comprises a first lens, a second lens, a third lens and a fourth lens from an object side to an image side, wherein the first lens has positive refraction power, an object side surface near-axis portion of the first lens is a convex surface, the second lens has negative refraction power, an object side surface near-axis portion of the second lens is a concave surface, the third lens has positive refraction power, an object side surface of the third lens and an image side surface of the third lens are aspheric surfaces, the fourth lens has refraction power, and an object side surface and an image side surface of the fourth lens are aspheric surfaces. When a specific condition is satisfied, a shooting scope can be effectively inhibited, so imaging quality of partial images is made to have relatively high resolution. The invention further discloses the image capturing device and the electronic device.

Description

technical field [0001] The invention relates to an imaging lens group and an image capturing device, in particular to a miniaturized imaging lens group 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 a general optical system is nothing more than a charge coupled device (Charge Coupled Device, CCD) or a complementary metal oxide semiconductor sensor (Complementary Metal-Oxide Semiconductor Sensor, CMOS sensor). 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] At present, most of the lenses configured in the portable electronic devices on the market pursue close-obje...

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