Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Optical image capturing system

An optical imaging system and imaging surface technology, applied in optics, optical components, instruments, etc., can solve problems such as increased imaging distortion rate, deterioration of peripheral imaging quality, and manufacturing difficulty

Active Publication Date: 2016-11-23
ABILITY OPTO ELECTRONICS TECH
View PDF3 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the optical system designed with a large aperture often faces the situation of producing more aberrations, resulting in the deterioration of the surrounding imaging quality and the difficulty of manufacturing, while the optical system designed with a wide viewing angle will face an increase in the distortion rate of imaging. The advanced optical imaging system can no longer meet the higher-level photography requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical image capturing system
  • Optical image capturing system
  • Optical image capturing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0163] The sum of the focal lengths fp of each lens with positive refractive power in the optical imaging system is ΣPP, and the sum of the focal lengths of each lens with negative refractive power is ΣNP. An embodiment of the optical imaging system of the present invention satisfies the following conditions: <ΣPP≤200; and f1 / ΣPP≤0.85. Preferably, the following conditions may be satisfied: 0<ΣPP≤150; and 0.01≤f1 / ΣPP≤0.7. Therefore, it is helpful to control the focusing ability of the optical imaging system, and properly distribute the positive refractive power of the system to suppress the premature occurrence of significant aberrations.

[0164] The first lens may have positive refractive power, and its object side may be convex. Thus, the positive refractive power of the first lens can be properly adjusted, which helps to shorten the total length of the optical imaging system.

[0165] The second lens may have negative refractive power. Thereby, aberrations generated by t...

no. 1 example

[0198] Please refer to Figure 1A and Figure 1B ,in Figure 1A Representing a schematic diagram of 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 an aperture 100, a first lens 110, a second lens 120, a third lens 130, a fourth lens 140, an infrared filter 170, an imaging surface 180, and an image sensing element in order from the object side to the image side. 190.

[0199] The first lens 110 has positive refrac...

no. 2 example

[0249] 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 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. Depend on Figure 2A It can be seen that the optical imaging system sequentially includes an aperture 200, a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, an infrared filter 270, an imaging surface 280, and an image sensing element from the object side to the image side. 290.

[0250] The first lens 210 has positive refracti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An optical image capturing system, sequentially including a first lens element, a second lens element, a third lens element and a fourth lens element from an object side to an image side, is provided. The first lens element has positive refractive power. The second through third lens elements have refractive power. The fourth lens element has negative refractive power. At least one of the image side surface and the object side surface of each of the four lens elements are aspheric. The optical lens elements can increase aperture value and improve the imagining quality for use in compact cameras.

Description

technical field [0001] The invention relates to an optical imaging system group, 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 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 element (Complementary Metal-Oxide SemiconductorduTPor Sensor; CMOS Sensor), and with the improvement of semiconductor manufacturing 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 image quality are also increasing. [0003] Traditional optical systems mounted on portable devices mostly use two-element or three-element lens...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/004G02B13/06G02B13/18G02B9/34
Inventor 刘耀维张永明
Owner ABILITY OPTO ELECTRONICS TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com