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Optical image capturing 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: 2018-07-10
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 a three- or four-lens lens structure. However, as portable devices continue to develop in the direction of pixel enhancement, and end consumers’ demand for large apertures is gradually increasing, such as low-light and Night shooting function, the existing optical imaging system can no longer meet the higher-level photography requirements

Method used

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Examples

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no. 1 example

[0176] Please refer to Figure 1A and Figure 1B ,in Figure 1A is a schematic diagram of an optical imaging system according to the 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. Figure 1D It is the through focus MTF of the central field of view, 0.3 field of view, and 0.7 field of view of the visible light spectrum of the embodiment of the present invention; Figure 1E It is a graph of defocus modulation conversion versus transfer rate of the central field of view, 0.3 field of view, and 0.7 field of view of the infrared light...

no. 2 example

[0236] Please refer to Figure 2A and Figure 2B ,in Figure 2A It is a schematic diagram of an optical imaging system according to the 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 the lateral aberration diagram of the meridian plane light fan and sagittal plane light fan of the optical imaging system of the second embodiment, the longest working wavelength and the shortest working wavelength passing through the edge of the aperture at the 0.7 field of view. Figure 2D It is the defocus modulation conversion versus transfer rate diagram of the central field of view, 0.3 field of view, and 0.7 field of view of the visible light spectrum in the second embodiment of the present invention; Figure 2E It is a graph of defocus modulation conversion versus transfer ratio of the central field of view, 0.3 field...

no. 3 example

[0258] Please refer to Figure 3A and Figure 3B ,in Figure 3A It is a schematic diagram of an optical imaging system according to the 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 the lateral aberration diagram of the meridian plane light fan and the sagittal plane light fan of the optical imaging system of the third embodiment, the longest working wavelength and the shortest working wavelength passing through the edge of the aperture at the 0.7 field of view. Figure 3D It is the defocus modulation conversion versus transfer rate diagram of the central field of view, 0.3 field of view, and 0.7 field of view of the visible light spectrum in the third embodiment of the present invention; Figure 3E It is the defocus modulation conversion versus transfer rate diagram of the central field of view, 0.3 field...

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Abstract

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. At least one lens among the first to the fifth lenses has positive refractive force. The fifth lens can have negative refractive force. The lenses in the optical image capturing system which have refractive power include the first to the fifth lenses. The optical image capturing system can increase aperture value and realizes better optical path adjusting capability, thereby improving the imaging quality when a specific condition is satisfied.

Description

technical field [0001] The invention relates to an optical imaging system, and 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 the general optical system is nothing more than two kinds of photosensitive coupling device (Charge Coupled Device; CCD) or complementary metal oxide semiconductor element (Complementary Metal-Oxide Semiconductor Sensor; CMOSSensor), and with the progress of semiconductor manufacturing technology, making The pixel size of the photosensitive element is reduced, and the optical system is gradually developing towards a high-pixel direction, so the requirements for image quality are also increasing. [0003] Traditional optical systems mounted on portable devices mostly use a three- or four-lens lens stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18G02B13/008G02B13/06G02B13/14G02B9/60
Inventor 张永明赖建勋唐乃元
Owner ABILITY OPTO ELECTRONICS TECH