Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Imaging optical lens assembly, image capturing apparatus and electronic device

a technology of optical lens and image capturing apparatus, applied in the direction of optics, optical elements, instruments, etc., can solve the problems of limited field of view of a conventional miniaturized lens module, difficult to reduce the size of the product equipped with the lens assembly, and increase the total track length of the lens assembly

Active Publication Date: 2017-06-15
LARGAN PRECISION
View PDF1 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes an imaging optical lens assembly used in a camera that can correct various aberrations and provide a wider field of view. It achieves this by using different lens elements with specific shapes and refractive powers. The third lens element has negative refractive power and a concave and convex surface to shift the principal point and enlarge the field of view. The balanced refractive power between the fifth and third lens elements allows the fifth lens element to control the optical path and correct various aberrations, while the third lens element can effectively correct astigmatism and improve image quality. The assembly also includes specific conditions to further reduce aberrations and achieve a wide field of view.

Problems solved by technology

However, such an arrangement often increases the total track length of the lens assembly and makes it difficult to reduce the size of the product equipped with the lens assembly.
Furthermore, the field of view of a conventional miniaturized lens module is limited due to the strict size requirement of the lens module.
Therefore, the conventional design can no longer meet the specifications and requirements of products in the market of the foreseeable future.

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
  • Imaging optical lens assembly, image capturing apparatus and electronic device
  • Imaging optical lens assembly, image capturing apparatus and electronic device
  • Imaging optical lens assembly, image capturing apparatus and electronic device

Examples

Experimental program
Comparison scheme
Effect test

1st embodiment

[0069]FIG. 1A is a schematic view of an image capturing apparatus according to the 1st embodiment of the present disclosure. FIG. 1B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves and a distortion curve of the image capturing apparatus according to the 1st embodiment.

[0070]In FIG. 1A, the image capturing apparatus includes an imaging optical lens assembly (not otherwise herein labeled) of the present disclosure and an image sensor 180. The imaging optical lens assembly includes, in order from an object side to an image side, a first lens element 110, an aperture stop 100, a second lens element 120, a third lens element 130, a fourth lens element 140, and a fifth lens element 150.

[0071]The first lens element 110 with negative refractive power has an object-side surface 111 being concave in a paraxial region thereof and an image-side surface 112 being concave in a paraxial region thereof, which are both aspheric, and at least one ...

2nd embodiment

[0101]FIG. 2A is a schematic view of an image capturing apparatus according to the 2nd embodiment of the present disclosure. FIG. 2B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves and a distortion curve of the image capturing apparatus according to the 2nd embodiment.

[0102]In FIG. 2A, the image capturing apparatus includes an imaging optical lens assembly (not otherwise herein labeled) of the present disclosure and an image sensor 280. The imaging optical lens assembly includes, in order from an object side to an image side, a first lens element 210, an aperture stop 200, a second lens element 220, a third lens element 230, a fourth lens element 240, and a fifth lens element 250.

[0103]The first lens element 210 with negative refractive power has an object-side surface 211 being concave in a paraxial region thereof and an image-side surface 212 being concave in a paraxial region thereof, which are both aspheric, and at least a co...

3rd embodiment

[0112]FIG. 3A is a schematic view of an image capturing apparatus according to the 3rd embodiment of the present disclosure. FIG. 3B shows, in order from left to right, longitudinal spherical aberration curves, astigmatic field curves and a distortion curve of the image capturing apparatus according to the 3rd embodiment.

[0113]In FIG. 3A, the image capturing apparatus includes an imaging optical lens assembly (not otherwise herein labeled) of the present disclosure and an image sensor 380. The imaging optical lens assembly includes, in order from an object side to an image side, a first lens element 310, an aperture stop 300, a second lens element 320, a third lens element 330, a fourth lens element 340, and a fifth lens element 350.

[0114]The first lens element 310 with negative refractive power has an object-side surface 311 being concave in a paraxial region thereof and an image-side surface 312 being concave in a paraxial region thereof, which are both aspheric, and at least one ...

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

The present disclosure provides an imaging optical lens assembly, including, in order from an object side to an image side: a first lens element with negative refractive power having an object-side surface being concave in a paraxial region, a second lens element with positive refractive power, a third lens element with negative refractive power, a fourth lens element with positive refractive power, and a fifth lens element with negative refractive power having an image-side surface being concave in a paraxial region and at least one convex shape in an off-axial region on the image-side surface, wherein the imaging optical lens assembly has a total of five lens elements.

Description

RELATED APPLICATIONS[0001]This application claims priority to Taiwan Application Serial Number 104142068, filed on Dec. 15, 2015, which is incorporated by reference herein in its entirety.BACKGROUND[0002]Technical Field[0003]The present disclosure relates to an imaging optical lens assembly and an image capturing apparatus, and more particularly, to an imaging optical lens assembly and an image capturing apparatus applicable to electronic devices.[0004]Description of Related Art[0005]In addition to applications in mobile devices, photographing modules have a wide range of applications. Utilizing photographing modules in various intelligent electronic products, such as vehicular devices and intelligent household appliances has become a trend in recent technological developments. As more and more devices, such as mobile phones, tablet computers, optical recognition devices, rear view cameras, driving recording systems and drone cameras, have been equipped with photographing modules in...

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
IPC IPC(8): G02B9/60G02B13/00
CPCG02B9/60G02B13/0045G02B13/0015G02B13/06
Inventor CHEN, KUAN-MINGHUANG, HSIN-HSUAN
Owner LARGAN PRECISION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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