Six-Lens Optical System Aberration Correction
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Solution Overview
Problem
Conventional optical image capturing systems in portable electronic devices are inadequate for meeting advanced photography requirements, such as low light mode or night mode, due to insufficient light admission and image quality.
Innovation Solution
An optical image capturing system utilizing a combination of refractive powers and aspheric surfaces in six lenses to increase light admission and improve image quality, with specific lens parameters and configurations that allow for dual-mode operation (visible and infrared) and effective aberration correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional optical systems use four or five lenses structure, then the system complexity is reduced, but the light admission and image quality are insufficient for advanced photography requirements
Solution Approach 1:
The optical system is divided into six distinct lens elements (first lens to sixth lens), each with specific refractive powers and surface configurations. This segmentation allows each lens to contribute differently to light gathering and image formation, enabling sufficient light admission while maintaining manageable system complexity through modular design.
2Volume of moving object
If the pixel size of photosensitive element is minimized, then the device size is reduced, but the demand for image quality increases
Solution Approach 1:
The patent employs aspheric surfaces on multiple lens elements, including the object-side and image-side surfaces of various lenses. These curved surfaces are specifically designed to correct optical aberrations and improve image quality, enabling high-resolution imaging with minimized device size by optimizing light path control through precise surface geometry.
3Illumination intensity
If large aperture is equipped for low light mode, then the light admission is increased, but the system size and complexity increase
Solution Approach 1:
The patent optimizes key parameters including the focal lengths of individual lenses (f1 through f6), the ratio of focal length to entrance pupil diameter (f/HEP between 1.0-10.0), and the thickness-to-distance ratios of each lens element. These parameter adjustments enable large aperture design (increased light admission) while controlling overall system complexity through mathematical optimization of optical parameters.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances light admission and image quality, enabling better performance in low light conditions and dual-mode operation, while maintaining a minimized system size and complexity.
Implementation Method 1
an optical image capturing system 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
Data Source
AI summary
The invention discloses a six-piece optical lens for capturing image and a six-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises 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; a sixth lens with refractive power; and 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.