Six-Element Optical Imaging Lens Compact Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge lies in designing optical imaging lenses with reduced dimensions while maintaining good optical performance, particularly for consumer electronic devices, where the distance from the object side surface of the first lens element to the image plane is too large for modern devices like smartphones and digital cameras.
Innovation Solution
The optical imaging lens is designed by forming convex or concave portions on the surfaces of the lens elements and controlling specific parameters such as central thickness, air gaps, and refracting indices to satisfy various inequalities, effectively shortening the lens length while maintaining optical characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the lens elements are scaled down to reduce size, then the lens dimensions become smaller, but the optical performance deteriorates
Solution Approach 1:
The patent applies parameter changes by carefully selecting and optimizing the refractive indices, Abbe numbers, and thickness values of each lens element. By changing these material and geometric parameters, the system achieves compact dimensions while maintaining optical performance through precise control of light propagation characteristics.
Solution Approach 2:
The patent uses composite materials by combining different lens elements with varying refractive indices and optical properties. This allows the system to achieve both compact size and good optical performance by leveraging the complementary characteristics of different materials in the lens assembly.
2Length of stationary object
If the distance from object side surface to image plane is reduced, then the lens length is shortened, but the optical characteristics deteriorate
Solution Approach 1:
The patent applies dimensionality change by optimizing the spatial arrangement of lens elements in the longitudinal direction while also utilizing lateral positioning and air gap adjustments. This multi-dimensional optimization allows the system to achieve compact length without sacrificing optical characteristics.
Solution Approach 2:
The patent changes geometric parameters including central thicknesses, air gaps between lens elements, and curvatures to optimize the optical path length. By adjusting these parameters, the system achieves reduced lens length while maintaining focus and image quality.
3Reliability
If the lens is designed with more elements to improve optical performance, then the imaging quality improves, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the optical system into six distinct lens elements with specific functions. Each element is optimized for particular optical characteristics, allowing the system to achieve high imaging quality while maintaining manageable complexity through functional segmentation.
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 approach allows for a compact optical imaging lens with improved image quality, enlarged aperture, and increased assembly yield, while ensuring good optical performance and reduced field of view.
Implementation Method 1
Each of the first, second, third, fourth, fifth and sixth lens elements has different refracting power
Data Source
AI summary
Present embodiments provide for an optical imaging lens. The optical imaging lens 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 positioned in an order from an object side to an image side. Through forming convex or concave portions on the surfaces of the lens elements and designing parameters satisfying at least an inequality, the improved optical imaging lens may provide better optical characteristics while the total length of the optical imaging lens may be shortened.