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Optical image capturing system

Active Publication Date: 2017-03-02
ABILITY OPTO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present disclosure describes an optical image capturing system and lens that use a combination of refractive powers to increase the amount of light and improve image quality. The system can focus on both visible light and infrared light simultaneously and correct optical distortion and TV distortion. The lens elements have inflection points to effectively adjust the angle of incidence and acquire better imaging quality. The system has a reduced horizontal distance and allows for other optical elements to be accommodated. The lens elements are designed to have weak refractive power to minimize aberration and facilitate fine tuning. The sixth lens element has negative refractive power and a concave image-side surface to reduce the back focal length and suppress aberration in off-axis fields of view.

Problems solved by technology

But the optical image capturing system with the large aperture design often produces more aberration resulting in the deterioration of quality in peripherical image formation and difficulties of manufacturing, and the optical image capturing system with wide view angle design increases distortion rate in image formation, thus the optical image capturing system in prior arts cannot meet the requirement of the higher order camera lens module.
Therefore, how to effectively increase quantity of incoming light and view angle of the optical lenses, not only further improves total pixels and imaging quality for the image formation, but also considers the equity design of the miniaturized optical lenses, becomes a quite important issue.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

first embodiment

The First Embodiment

Embodiment 1

[0102]Please refer to FIG. 1A and FIG. 1B. FIG. 1A is a schematic view of the optical image capturing system according to the first embodiment of the present application, FIG. 1B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion curve of the optical image capturing system in the order from left to right according to the first embodiment of the present application, FIG. 1C is a characteristic diagram of modulation transfer of a visible light according to the first embodiment of the present application, and FIG. 1D is a characteristic diagram of modulation transfer of infrared rays according to the first embodiment of the present application. As shown in FIG. 1A, in order from an object side to an image side, the optical image capturing system includes a first lens element 110, an aperture stop 100, a second lens element 120, a third lens element 130, a fourth lens element 140, a fifth lens element 150, a si...

second embodiment

The Second Embodiment

Embodiment 2

[0170]Please refer to FIG. 2A, FIG. 2B, FIGS. 2C, and 2D. FIG. 2A is a schematic view of the optical image capturing system according to the second embodiment of the present application, FIG. 2B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion curve of the optical image capturing system in the order from left to right according to the second embodiment of the present application, FIG. 2C is a characteristic diagram of modulation transfer of a visible light according to the second embodiment of the present application, and FIG. 2D is a characteristic diagram of modulation transfer of infrared rays according to the second embodiment of the present application. As shown in FIG. 2A, in order from an object side to an image side, the optical image capturing system includes a first lens element 210, a second lens element 220, a third lens element 230, an aperture stop 200, a fourth lens element 240, a fifth le...

third embodiment

The Third Embodiment

Embodiment 3

[0184]Please refer to FIG. 3A, FIG. 3B, FIGS. 3C, and 3D. FIG. 3A is a schematic view of the optical image capturing system according to the third embodiment of the present application, FIG. 3B is longitudinal spherical aberration curves, astigmatic field curves, and an optical distortion curve of the optical image capturing system in the order from left to right according to the third embodiment of the present application, FIG. 3C is a characteristic diagram of modulation transfer of a visible light according to the third embodiment of the present application, and FIG. 3D is a characteristic diagram of modulation transfer of infrared rays according to the third embodiment of the present application. As shown in FIG. 3A, in order from an object side to an image side, the optical image capturing system includes a first lens element 310, a second lens element 320, a third lens element 330, an aperture stop 300, a fourth lens element 340, a fifth lens el...

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Abstract

A six-piece optical lens for capturing image and a six-piece optical module for capturing image are provided. In order from an object side to an image side, the optical lens along the optical axis includes a first lens with refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power, a fifth lens with refractive power and a sixth lens with refractive power. At least one of the image-side surface and object-side surface of each of the six lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of Taiwan Patent Application No. 104127763, filed on Aug. 25, 2015, in the Taiwan Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present disclosure relates to an optical image capturing system, and more particularly to a compact optical image capturing system which can be applied to electronic products.[0004]2. Description of the Related Art[0005]In recent years, with the rise of portable electronic devices having camera functionalities, the demand for an optical image capturing system is raised gradually. The image sensing device of ordinary photographing camera is commonly selected from charge coupled device (CCD) or complementary metal-oxide semiconductor sensor (CMOS Sensor). In addition, as advanced semiconductor manufacturing technology enables the minimization of pixel siz...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B7/04G02B27/64G02B9/62
CPCG02B13/0045G02B9/62G02B5/20G02B27/646G02B7/04G02B13/0015G02B13/06
Inventor TANG, NAI-YUANCHANG, YEONG-MING
Owner ABILITY OPTO ELECTRONICS TECH
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