Six-Lens Optical Imaging Lens Design for Compact Wide-Angle Systems
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Solution Overview
Problem
Current optical imaging lenses with large angles of view are longer, thicker, and heavier, compromising imaging quality due to distortion aberration and failing to meet market demands for compact, high-performance lenses in portable devices.
Innovation Solution
A six-lens element optical imaging lens design with specific refracting power distributions and air gaps, optimized for reduced length, weight, and improved imaging quality, featuring a combination of negative and positive refracting power elements and concave/convex surface regions to correct aberrations and enhance field of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the angle of view is increased, then the field of view is enlarged, but the total length and thickness increase
Solution Approach 1:
The optical lens system is divided into six separate lens elements with different refracting powers arranged in sequence. This segmentation allows each element to contribute differently to the overall optical function, enabling a larger angle of view while maintaining a compact total length through optimized spacing and individual element design.
2Adaptability or versatility
If the angle of view is increased, then the field of view is enlarged, but the total weight increases
Solution Approach 1:
The patent optimizes multiple parameters including the refracting power of each lens element, the air gaps between elements, and the surface curvatures. By carefully adjusting these parameters, the system achieves a larger angle of view while minimizing the total weight through reduced material requirements and optimized structural configuration.
3Length of moving object
If the focal length is reduced, then the lens size is minimized, but the imaging quality deteriorates due to distortion aberration
Solution Approach 1:
Different regions of the optical system are designed with different properties. Each lens element has specific refracting power (positive or negative) and surface curvature tailored to its position in the sequence. This local optimization allows the system to maintain short focal length while correcting distortion aberration through the combined effect of elements with locally optimized characteristics.
4Volume of moving object
If the lens size is reduced, then the portability is improved, but the imaging quality deteriorates
Solution Approach 1:
The compact optical system is achieved by segmenting the lens into six elements with optimized individual sizes and spacing. This segmentation allows the total volume to be reduced while maintaining imaging quality, as each element contributes specifically to correcting certain aberrations and the combined effect produces high-quality images in a compact form factor.
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 design achieves a shorter total length, smaller focal length, and improved optical performance with a larger angle of view while maintaining high image quality, addressing the limitations of existing lenses in terms of size and performance.
Implementation Method 1
Each first lens element, second lens element, third lens element, fourth lens element, fifth lens element and sixth lens element respectively has an object-side surface which faces toward the object side and allows imaging rays to pass through as well as an image-side surface which faces toward the image side and allows the imaging rays to pass through
Data Source
AI summary
An optical imaging lens includes: first, second, third, fourth, fifth and sixth lens element, the first lens element has negative refracting power, the third lens element has negative refracting power, and an optical axis region of an image-side surface of the sixth lens element is concave. The lens elements having refracting power included by the optical imaging lens are only the six lens elements described above. In addition, the optical imaging lens satisfies the relationship: (G23+T3+G34+T4+G45)/G12≤2.600 and υ3+υ4+υ5+υ6≤150.000.