Six-Lens Optical System Aberration Control
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Solution Overview
Problem
Traditional optical image capturing systems in portable electronic devices face challenges in achieving high resolution, large aperture, and wide-angle capabilities while minimizing aberrations and size, failing to meet the demands for high imaging quality and compact design.
Innovation Solution
The optical image capturing system employs a combination of refractive powers and aspheric surfaces in six-piece optical lenses to increase incoming light quantity, view angle, and total pixels, with specific lens element parameters and aberration corrections to enhance imaging quality and compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the aperture value is increased to improve light gathering capability and night view function, then the incoming light quantity increases, but the aberrations increase resulting in worse image quality
Solution Approach 1:
The optical system is divided into six separate lens elements with different refractive powers and surface configurations. Each lens element contributes to correcting specific types of aberrations, allowing the system to maintain large aperture while controlling overall aberration levels through coordinated design of all elements
Solution Approach 2:
The patent employs asymmetric surface designs including convex and concave surfaces with different curvatures on each lens element. The object-side and image-side surfaces of each lens element have different geometric configurations, allowing optimized control of light paths to reduce aberrations while maintaining large aperture capability
2Area of stationary object
If the view angle is increased to improve self-shooting function, then the field of view expands, but the distortion increases
Solution Approach 1:
The six-lens element configuration allows different sections of the optical system to handle different portions of the wide field of view. Each lens element is optimized for specific field angles, enabling the system to maintain low distortion across the entire expanded view angle range
Solution Approach 2:
Different lens elements have locally optimized surface configurations tailored to their specific positions in the optical path. The convex and concave surfaces are designed with specific curvatures that address distortion issues in particular regions of the field of view, enabling overall distortion control across the wide angle
3Manufacturing precision
If the number of lens elements is increased to improve imaging quality and reduce aberrations, then the image formation quality improves, but the system size and complexity increase
Solution Approach 1:
The optical system is segmented into six lens elements with clearly defined functional roles. This segmentation allows each element to be optimized for specific aberration correction tasks while maintaining an overall compact configuration that balances complexity with performance
Solution Approach 2:
Multiple optical functions are merged into a single six-element configuration. The lens elements collectively provide aberration correction, focus control, and field flattening functions that would otherwise require separate components, reducing overall system complexity while maintaining high imaging quality
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 improves image formation quality, reduces aberrations, and miniaturizes the optical system, enabling applications in high-pixel imaging devices like UHD and QHD cameras with reduced size and weight.
Implementation Method 1
Optical image capturing system, optical lenses, refractive powers
Data Source
AI summary
The invention discloses a six-piece optical lens for capturing image and a six-piece optical system 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 a positive refractive power having a convex object-side surface; a second lens with a refractive power; a third lens with a refractive power; a fourth lens with a refractive power; a fifth lens with a refractive power; and a sixth lens with a negative refractive power having a concave object-side surface; and at least one of the image-side surface and object-side surface of each of the sixth lens element has inflection points and both of the image-side surface and object-side surface of the sixth lens element are aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.