Six-Lens Optical System with Aspheric Surfaces for Wide-Angle Imaging
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Solution Overview
Problem
Traditional optical image capturing systems in portable electronic devices fail to meet the demands for higher resolution, wider angles, and improved imaging quality, particularly for self-shooting functions.
Innovation Solution
An optical image capturing system utilizing a combination of six-piece optical lenses with specific refractive powers, convex and concave surfaces, and aspheric surfaces to increase view angles and improve imaging quality, while minimizing system height and correcting aberrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional four-lens or five-lens designs are used, then the system structure is relatively simple, but the view angle and imaging quality cannot meet the requirements for high resolution and wide angle self-shooting functions
Solution Approach 1:
The optical system is divided into six independent lens elements, each with specific refractive powers and surface configurations. This segmentation allows each element to contribute to correcting different types of aberrations and achieving the desired wide angle of view, thereby resolving the contradiction between system performance and complexity by optimizing the functional division of each lens element
Solution Approach 2:
The patent specifies precise parameter ranges for each lens element including refractive power ratios (e.g., 0.1 < |f1/f6| ≤ 10, 0 ≤ f/f1 ≤ 2), focal length relationships, and surface curvature characteristics. By controlling these parameters within defined ranges, the system achieves high imaging quality and wide view angles while managing the complexity through standardized design criteria
2Manufacturing precision
If more lens elements are added to improve imaging quality and view angle, then the imaging performance increases, but the system height and device size increase
Solution Approach 1:
The patent employs aspheric surfaces on multiple lens elements (first, second, third, fourth, and sixth lens elements) to replace traditional spherical surfaces. This curvature optimization enables better control of light paths, corrects spherical and other optical aberrations more effectively, and allows for a more compact lens arrangement that reduces overall system height while maintaining high imaging quality
Solution Approach 2:
The patent establishes specific parameter relationships to control system height, including constraints on focal length ratios (0.1 < |f1/f6| ≤ 10, 0 ≤ f/f1 ≤ 2) and other optical parameters. These parameter controls ensure that the six-element design achieves high imaging quality without excessive system height, resolving the contradiction between performance and compactness
3Manufacturing precision
If conventional lens designs are used, then the design and manufacturing process is simpler, but aberrations cannot be effectively corrected to achieve high imaging quality
Solution Approach 1:
The patent specifies that the first, second, third, fourth, and sixth lens elements have aspheric surfaces, which provide superior aberration correction capabilities compared to conventional spherical surfaces. The aspheric design enables precise control of light rays across the entire field of view, achieving high imaging quality while the standardized six-element configuration and defined parameter ranges facilitate manufacturing
Solution Approach 2:
The patent defines specific parameter ranges and relationships for each lens element (refractive powers, focal lengths, surface curvatures) that balance optical performance with manufacturability. These controlled parameters enable effective aberration correction through the aspheric designs while maintaining feasibility for manufacturing and assembly processes
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
The system achieves enhanced imaging quality and increased view angles, effectively addressing the limitations of traditional designs by optimizing lens configurations and materials, such as plastic or glass, to reduce aberrations and system height.
Implementation Method 1
Optical image capturing system includes a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element
Data Source
AI summary
The present disclosure illustrates an optical image capturing system which comprises, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. The first lens element with a refractive power has a convex object-side surface. The second through fifth lens elements have refractive powers, and the object-side surfaces and the image-side surfaces of the four lens elements are aspheric. The sixth lens element with a negative refractive power has a concave object-side surface, an object-side surface and an image-side surface of the sixth lens elements are aspheric, and at least one of the object-side and the image-side surfaces has an inflection point. When specific conditions are satisfied, the optical image capturing system has a better optical path adjusting ability to improve imaging quality.