Six-Lens Optical System with Aspheric Surfaces for High Aperture
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Solution Overview
Problem
Traditional optical image capturing systems in portable electronic devices struggle to meet the requirements of high pixel density and large aperture, leading to insufficient light intake and compromised imaging quality for advanced camera functionalities like micro filming and night viewing.
Innovation Solution
The optical image capturing system employs a combination of six-piece optical lenses with refractive powers, convex and concave surfaces, and inflection points to optimize light intake and correct optical distortions, utilizing specific lens element parameters and aspheric surfaces to enhance imaging quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional four-lens or fifth-lens design is used, then device complexity is reduced, but light intake is insufficient and imaging quality deteriorates
Solution Approach 1:
The optical system is divided into six distinct lens elements, each with specific refractive powers and surface characteristics. This segmentation allows each lens element to contribute differently to light gathering and image formation, thereby increasing overall light intake while maintaining manageable system complexity through modular design
Solution Approach 2:
The six lens elements are designed to perform multiple functions simultaneously: light gathering, aberration correction, and image formation. By making each lens element multi-functional, the system achieves high light intake and imaging quality without requiring additional separate components, thus avoiding excessive complexity
2Illumination intensity
If aperture is increased for better light intake, then imaging quality improves, but system size increases
Solution Approach 1:
Aspheric surfaces are employed on multiple lens elements to optimize light path control. The curved surfaces enable efficient light gathering with larger effective aperture while maintaining a compact physical footprint, as the aspheric geometry allows for more efficient packing of optical paths within a smaller volume
Solution Approach 2:
The system utilizes varying refractive indices and curvature radii across the six lens elements to optimize the optical path. By carefully controlling parameters like refractive power and surface curvature, the design achieves large effective aperture for high light intake while keeping the physical dimensions of each lens element and the overall system compact
3Measurement precision
If pixel density is increased for high resolution, then imaging quality improves, but light intake per pixel decreases
Solution Approach 1:
The six lens elements work together as a unified optical system to concentrate and distribute light across the image sensor array. This combined approach ensures that even with high pixel density, each pixel receives sufficient light by optimizing the overall light distribution across the entire sensor surface through the coordinated action of all lens elements
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
This configuration effectively increases light intake and improves imaging quality, enabling better performance in high-resolution and low-light conditions, while minimizing the system's size and weight for portable applications.
Implementation Method 1
Optical image capturing system employs a combination of six-piece optical lenses with refractive powers
Data Source
AI summary
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.