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Optical imaging system

An optical imaging system and imaging surface technology, applied in optics, optical components, instruments, etc., can solve problems such as inability to meet photography requirements, achieve the effect of increasing the amount of incoming light and improving imaging quality

Active Publication Date: 2016-11-30
ABILITY OPTO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional optical systems mounted on portable devices mostly use four- or five-lens lens structures. However, due to the continuous improvement of pixels in portable devices and the demand for large apertures by end consumers, such as low-light and night shooting functions , the existing optical imaging system can no longer meet the higher-level photography requirements

Method used

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Examples

Experimental program
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Effect test

no. 1 example

[0181] Please refer to Figure 1A and Figure 1B ,in Figure 1A A schematic diagram showing an optical imaging system according to a first embodiment of the present invention, Figure 1B From left to right are the spherical aberration, astigmatism and optical distortion curves of the optical imaging system of the first embodiment. Figure 1C It is the lateral aberration diagram of the meridian plane light fan and the sagittal plane light fan of the optical imaging system of the first embodiment, the longest working wavelength and the shortest working wavelength passing through the edge of the aperture at the 0.7 field of view. Depend on Figure 1A It can be seen that the optical imaging 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, a sixth lens 160, and an infrared filter from the object side to the image side. 180 , an imaging surface 190 and an image sensing element 192 .

[0182] The first lens...

no. 2 example

[0245] Please refer to Figure 2A and Figure 2B ,in Figure 2A A schematic diagram showing an optical imaging system according to a second embodiment of the present invention, Figure 2B From left to right are the spherical aberration, astigmatism and optical distortion curves of the optical imaging system of the second embodiment. Figure 2C It is a lateral aberration diagram of the optical imaging system of the second embodiment at a field of view of 0.7. Depend on Figure 2A It can be seen that the optical imaging system includes a first lens 210, a second lens 220, an aperture 200, a third lens 230, a fourth lens 240, a fifth lens 250, a sixth lens 260, and an infrared filter from the object side to the image side. 280 , an imaging surface 290 and an image sensing element 292 .

[0246] The first lens 210 has negative refractive power and is made of plastic material. The object side 212 is convex, and the image side 214 is concave, both of which are aspherical.

[0...

no. 3 example

[0269] Please refer to Figure 3A and Figure 3B ,in Figure 3A shows a schematic diagram of an optical imaging system according to a third embodiment of the present invention, Figure 3B From left to right are the spherical aberration, astigmatism and optical distortion curves of the optical imaging system of the third embodiment. Figure 3C It is a lateral aberration diagram of the optical imaging system of the third embodiment at a field of view of 0.7. Depend on Figure 3A It can be seen that the optical imaging system sequentially includes a first lens 310, a second lens 320, an aperture 300, a third lens 330, a fourth lens 340, a fifth lens 350, a sixth lens 360, and an infrared filter from the object side to the image side. 380 , an imaging surface 390 and an image sensing element 392 .

[0270] The first lens 310 has negative refractive power and is made of plastic material. The object side 312 is convex, and the image side 314 is concave, both of which are aspher...

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Abstract

The invention discloses an optical imaging system comprising, in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. At least one of the first to fifth lenses is provided with with positive refractive power. The sixth lens may be provided with negative refractive power. Both surfaces of the sixth lens are aspheric and at least one surface of the sixth lens has a point of inflexion. The lenses with refractive power in the optical imaging system are the first to sixth lenses. When a specified condition is satisfied, the optical imaging system can have better light receiving capability and a better optical path adjustment capability so as to improve imagining quality.

Description

technical field [0001] The invention relates to an optical imaging system group, in particular to a miniaturized optical imaging system group applied to electronic products. Background technique [0002] In recent years, with the rise of portable electronic products with photography functions, the demand for optical systems has increased day by day. The photosensitive element of a general optical system is nothing more than a photosensitive coupling device (Charge Coupled Device; CCD) or a complementary metal oxide semiconductor element (Complementary Metal-Oxide Semiconductor Sensor; CMOS Sensor). The pixel size of components 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 portable devices mostly use four- or five-lens lens structures. However, due to the continuous improvement of pixels in portable devices and the demand for la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00
CPCG02B13/0045G02B27/0075G02B9/62
Inventor 刘耀维唐乃元张永明
Owner ABILITY OPTO ELECTRONICS TECH
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