Six-Element Optical Imaging Lens Compact Design
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Solution Overview
Problem
Existing large-angle optical imaging lenses are long, thick, and fail to meet market demands due to poor image quality and manufacturing challenges in achieving both miniaturization and favorable imaging quality.
Innovation Solution
An optical imaging lens design comprising six lens elements with specific refracting power distributions and surface shapes, including negative and positive refracting power elements, arranged to satisfy conditions such as V4+V5+V6≤120.000 and (T1+T2+G34+G45)/(G23+T5)≤2.400, optimizing the lens configuration for a large field of view and improved imaging quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the lens is designed with large field of view and multiple elements, then the imaging quality improves, but the lens becomes long and thick
Solution Approach 1:
The optical imaging lens is divided into six distinct lens elements, each with specific refracting power and surface shape characteristics. This segmentation allows complex optical functions to be distributed across multiple simpler components, achieving large field of view and high imaging quality while maintaining a compact overall structure that avoids excessive length
Solution Approach 2:
Each lens element is designed with specific local surface characteristics (convex or concave optical axis regions, convex or concave periphery regions) tailored to its position in the optical path. This localized optimization of surface geometry allows each element to contribute specifically to correcting aberrations and achieving high imaging quality without requiring excessive overall lens length
2Volume of moving object
If the lens is downsized for miniaturization, then the portability improves, but the manufacturing precision and imaging quality become difficult to guarantee
Solution Approach 1:
The patent specifies precise parameter ranges for each lens element including refracting power signs, surface shape configurations (convex/concave regions), and Abbe number constraints (V4+V5+V6≤120.000). These parameter optimizations enable miniaturization while maintaining manufacturing feasibility and imaging quality through carefully controlled optical characteristics
Solution Approach 2:
The lens system uses multiple lens elements with different material properties (indicated by varying Abbe numbers), combining materials with different optical characteristics to achieve chromatic aberration correction and high imaging quality in a compact form factor that would be difficult with single-material designs
3Adaptability or versatility
If the lens design is optimized for large field of view, then the viewing angle improves, but the distortion and aberrations increase
Solution Approach 1:
The six-lens-element configuration distributes field-of-view expansion and aberration correction functions across multiple elements. Each element contributes to both widening the field of view and correcting specific aberrations, allowing the system to achieve large field of view while maintaining high image quality through cumulative correction effects
Solution Approach 2:
Specific surface shape configurations in different lens elements (convex optical axis regions in certain elements, concave in others) are locally optimized to correct specific types of aberrations while maintaining large field of view capability
4Manufacturing precision
If the lens configuration is complex to achieve high imaging quality, then the image quality improves, but the manufacturing and assembly difficulty increases
Solution Approach 1:
The patent defines specific parameter ranges and constraints (Abbe number sum≤120.000, refracting power signs, surface shape configurations) that guide manufacturing while ensuring high imaging quality. These parameter specifications make the complex optical design manufacturable by providing clear fabrication targets
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 large field of view and favorable imaging quality while addressing manufacturing challenges, resulting in a more compact and efficient optical imaging lens with reduced aberrations and improved assembly yield.
Implementation Method 1
Each of the first lens element to the sixth lens element includes an object-side surface facing the object side and allowing imaging rays to pass through and an image-side surface facing the image side and allowing the imaging rays to pass through
Data Source
AI summary
An optical imaging lens including a first lens element to a sixth lens element arranged in sequence from an object side to an image side along an optical axis is provided. The first lens element has negative refracting power, and a periphery region of the object-side surface thereof is convex. An optical axis region of the image-side surface of the second lens element is convex. An optical axis region of the object-side surface of the third lens element is concave. An optical axis region of the object-side surface of the fourth lens element is convex and a periphery region of the image-side surface thereof is concave. The optical imaging lens only has abovementioned six lens elements having refracting power, and satisfies the following condition expression: V4+V5+V6≤120.000. Furthermore, other optical imaging lenses are also provided.