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Optical system for imaging, imaging device and electronic device

An optical system and imaging technology, applied in optics, optical components, instruments, etc., can solve the problems of too high, not easy to combine large aperture and short overall length, difficult to carry, etc.

Active Publication Date: 2019-04-02
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-chip optical system has been further developed at present, while the product is moving towards a large aperture and miniaturized design, its imaging quality often fails to meet the requirements due to excessive stray light

Method used

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  • Optical system for imaging, imaging device and electronic device
  • Optical system for imaging, imaging device and electronic device
  • Optical system for imaging, imaging device and electronic device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0118] 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 optical system (not otherwise labeled) and an electronic photosensitive element 190 . The optical system for imaging includes first lens 110, aperture 100, second lens 120, third lens 130, fourth lens 140, fifth lens 150, sixth lens 160, infrared filter Optical element (IR-cut filter) 170 and imaging surface 180, and electronic photosensitive element 190 is arranged on the imaging surface 180 of imaging optical system, wherein the lens of imaging optical system is six (110-160), any two adjacent There is an air gap between the lenses.

[0119] The first lens 110 has positive refractive...

no. 2 example

[0152] 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 imaging optical system (not otherwise labeled) and an electronic photosensitive element 290 . The imaging optical system includes a diaphragm 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, an infrared filter The optical element 270 and the imaging surface 280, and the electronic photosensitive element 290 is arranged on the imaging surface 280 of the optical system for imaging, wherein the lenses of the optical system for imaging are six pieces (210-260), and there is an air gap between any two adjacent lenses. gap.

[0153] ...

no. 3 example

[0169] 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 imaging optical system (not labeled separately) and an electronic photosensitive element 390 . The imaging optical system includes a diaphragm 300, a first lens 310, a second lens 320, a diaphragm 301, a third lens 330, a fourth lens 340, a fifth lens 350, a sixth lens 360, Infrared ray filtering filter element 370 and imaging surface 380, and electronic photosensitive element 390 is arranged on the imaging surface 380 of imaging optical system, wherein the lens of imaging optical system is six (310-360), any two adjacent lenses There is an air gap between them.

[0170] The first lens 310 ha...

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Abstract

The invention discloses an imaging-used optical system, an image capturing device and an electronic device. The imaging-used optical system sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens sequentially from an object side to an image side, wherein the first lens has positive refractive power, and the surface, close to the optical axis, of the object side is a convex surface; the surface, close to the optical axis, of the image side of the third lens is a concave surface; the surface, close to the optical axis, of the image side of the fourth lens is a concave surface; the fifth lens has positive refractive power; and the sixth lens has negative refractive power, the surface, close to the optical axis, of the image side is a concave surface, the off-axis place on the surface of the image side contains at least one convex surface, and both the object side surface and the image side surface are aspheric surfaces. When specific conditions are met, the miniaturization of the imaging-used optical system can be maintained, and the feature of a short total length when configuration requirements of a large aperture and a large viewing angle are considered. The invention also discloses an image capturing device comprising the above imaging optical system and an electronic device with the image capturing device.

Description

technical field [0001] The present invention relates to an imaging optical system and an image pickup device, and in particular to a miniaturized imaging optical system and an image pickup 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, 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] Traditionally, the optical systems mounted on electronic produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18G02B13/00
Inventor 许伯纶林振诚陈纬彧
Owner LARGAN PRECISION
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