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Take the image with optical system, portrait device and electronic device

An optical system, image-side technology, applied in optics, optical components, instruments, etc., can solve problems such as unable to maintain imaging quality, excessive stray light, etc., to achieve the effect of improving imaging quality, suppressing total length, and avoiding excessive curvature

Active Publication Date: 2019-04-26
LARGAN PRECISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the lenses of portable electronic products on the market are equipped with the characteristics of large viewing angle and miniaturization to meet the trend of thinning electronic products. However, the lenses often cause excessive stray light and cannot maintain excellent imaging quality.

Method used

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  • Take the image with optical system, portrait device and electronic device
  • Take the image with optical system, portrait device and electronic device
  • Take the image with optical system, portrait device and electronic device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0108] 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 image capturing optical system (not labeled separately) and an electronic photosensitive element 180 . The image-taking optical system includes a first lens 110, an aperture 100, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, an infrared filter element 160 and The imaging surface 170, and the electronic photosensitive element 180 is arranged on the imaging surface 170 of the image-taking optical system, wherein the lens in the image-taking optical system is five (110-150), and any two adjacent lenses are on the optical axis All have an air gap.

[0109] The first len...

no. 2 example

[0140] 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 seen that the image capturing device of the second embodiment includes an image capturing optical system (not labeled separately) and an electronic photosensitive element 280 . The image-taking optical system includes an aperture 200, a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, an infrared filter element 260 and imaging surface 270, and the electronic photosensitive element 280 is arranged on the imaging surface 270 of the image-taking optical system, wherein the lens in the image-taking optical system is five (210-250), and any two adjacent lenses are on the optical axis All have an air gap.

[0141] The first lens 2...

no. 3 example

[0155] 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 image capturing device of the third embodiment includes an image capturing optical system (not labeled separately) and an electronic photosensitive element 380 . The image-taking optical system includes a first lens 310, an aperture 300, a second lens 320, a third lens 330, a fourth lens 340, a fifth lens 350, an infrared filter element 360 and imaging surface 370, and the electronic photosensitive element 380 is arranged on the imaging surface 370 of the image-taking optical system, wherein the lens in the image-taking optical system is five (310-350), and any two adjacent lenses are on the optical axis All have an air gap.

[0156] The first lens 3...

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Abstract

The invention reveals an image capturing optical system, an image capturing device, and an electronic device. The system sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from the object space to the image space. The first lens has the positive refraction power, and the object space surface of the first lens is a convex surface. The second lens has the positive refraction power, wherein the object space surface of the second lens is a convex surface, and the image space surface of the second lens is a concave surface. The third lens has the negative refraction power, and the image space surface of the third lens is a concave surface. The fourth lens has the positive refraction power. The fifth lens has the negative refraction power, and the image space surface of the fifth lens is a concave surface. Moreover, an off-axis part of the image space surface of the fifth lens comprises at least one convex surface, and the object space and image space surfaces of the fifth lens are aspheric surfaces. When a specific condition is met, the stabilization of the imaging quality and assembly of the system is facilitated. The invention also discloses the image capturing device with the system, and the electronic device with the image capturing device.

Description

technical field [0001] The present invention relates to an image-taking optical system and an image-taking device, and in particular to a miniaturized image-taking optical system and an image-taking device applied to electronic devices. 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, 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, the lenses of portable electronic products...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
Inventor 廖凌峣陈纬彧
Owner LARGAN PRECISION
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