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Optical image capturing system

An optical imaging system, imaging surface technology, applied in optics, optical components, lenses, etc., can solve problems such as inability to meet photography requirements

Active Publication Date: 2018-11-23
ABILITY OPTO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional optical system mounted on portable devices mostly adopts six-element or seven-lens lens structure. However, due to the continuous improvement of the pixels of portable devices and the demand of end consumers for large apertures such as low-light and night shooting functions, the existing The advanced optical imaging system can no longer meet the higher-level photography requirements

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Examples

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no. 1 example

[0206] Please refer to Figure 1A and Figure 1B ,among them Figure 1A Shows 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 For the meridian surface fan and the sagittal surface fan of the optical imaging system of the first embodiment, the longest operating wavelength and the shortest operating wavelength are transverse aberration diagrams at 0.7 field of view through the edge of the aperture. Figure 1D Shows the center field of view, 0.3 field of view, and 0.7 field of view of the visible light spectrum in the embodiment of the present invention, through focus modulation conversion contrast transfer rate diagram (Through FocusMTF); Figure 1E It shows the defocus modulation conversion contrast transfer ratio diagram of the center field of view, 0.3 field...

no. 2 example

[0272] Please refer to Figure 2A and Figure 2B ,among them Figure 2A Shows a schematic diagram of an optical imaging system according to a second embodiment of the present invention, Figure 2B From left to right, the spherical aberration, astigmatism and optical distortion curves of the optical imaging system of the second embodiment are shown in sequence. Figure 2C This is a lateral aberration diagram of the optical imaging system of the second embodiment at a field of view of 0.7. Figure 2D Shows the defocus modulation conversion contrast transfer ratio diagram of the center field of view, 0.3 field of view, and 0.7 field of view of the visible light spectrum of this embodiment; Figure 2E It shows the defocus modulation conversion contrast transfer ratio diagram of the center field of view, 0.3 field of view, and 0.7 field of view of the infrared spectrum of the second embodiment of the present invention. by Figure 2A It can be seen that the optical imaging system 20 inc...

no. 3 example

[0299] Please refer to Figure 3A and Figure 3B ,among them 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 graphs of spherical aberration, astigmatism and optical distortion of the optical imaging system of the third embodiment. Figure 3C This is a lateral aberration diagram of the optical imaging system of the third embodiment at a field of view of 0.7. Figure 3D Shows the defocus modulation conversion contrast transfer ratio diagram of the center field of view, 0.3 field of view, and 0.7 field of view of the visible light spectrum of this embodiment; Figure 3E The defocus modulation conversion contrast transfer ratio diagram of the center field of view, 0.3 field of view, and 0.7 field of view of the infrared light spectrum of this embodiment is shown. by Figure 3A It can be seen that the optical imaging system 30 includes a first lens 310, a second lens 320, a thi...

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Abstract

The invention discloses an optical image capturing system comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens in sequencefrom an object side to an image side. At least one lens of the first to the seventh lenses has a positive refractive power, the eighth lens may have a negative refractive power, at least one surfaceof the eighth lens comprises a point of inflection, and the lenses with the refractive power in the optical image capturing system are the first to the eight lenses. When a specific condition is satisfied, greater capabilities of light reception and optical path modulation are achieved, and the imagining quality is improved.

Description

Technical field [0001] The invention relates to an optical imaging system, and in particular to a miniaturized optical imaging system 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. The photosensitive components of general optical systems are nothing more than photosensitive coupled components (Charge Coupled Device; CCD) or Complementary Metal-Oxide Semiconductor Sensor (CMOSSensor), and with the advancement of semiconductor process technology, The pixel size of the photosensitive component is reduced, and the optical system is gradually developing in the field of high pixels, so the requirements for image quality are also increasing. [0003] Traditional optical systems mounted on portable devices mostly use six or seven-element lens structures. However, due to the continuous improvement of pixels in portable devices and the needs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18G02B9/64G02B13/008G02B13/146G02B3/04
Inventor 张永明赖建勋唐乃元
Owner ABILITY OPTO ELECTRONICS TECH
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