Six-Lens Imaging System Compact Design Aberration Control

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

High-resolution imaging lens systems with multiple lenses face challenges in compact design due to increased length, making them difficult to mount in thin mobile terminals, and require optimization for reduced size and improved refractive power distribution.

Innovation Solution

The proposed imaging lens system consists of six lenses with specific refractive powers and surface configurations, including aspherical surfaces, to achieve a compact design while maintaining high resolution, with conditional expressions defining the relationships between focal lengths, refractive indices, and optical axis distances to optimize performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If high-resolution imaging lens systems with multiple lenses are configured, then imaging resolution is improved, but system length increases making it difficult to mount in thin mobile terminals

Engineering Contradiction:

Improveimaging resolutionVSAvoidlens system length

Core Design Contradiction:

Measurement precisionVSLength of moving object

Solution Approach 1:

The patent applies parameter changes by carefully controlling the refractive powers, curvatures, and axial distances of each lens element. Specific conditional expressions define the relationships between these parameters (e.g., focal length ratios, curvature radii relationships) to optimize the optical path and reduce overall system length while maintaining high-resolution imaging capability

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent implements nesting by arranging six lens elements in a compact sequential configuration where each lens is positioned close to the others along the optical axis. The conditional expressions ensure that the axial distances between lenses are minimized while maintaining proper optical function, creating a nested-like compact structure that reduces overall system length

Inventive Principle:

Principle #7Nested doll (Nesting)

2Length of moving object

If lens system length is reduced for compact design, then ease of mounting in mobile terminals is improved, but manufacturing precision and aberration control become more difficult

Engineering Contradiction:

Improvelens system lengthVSAvoidaberration control precision

Core Design Contradiction:

Length of moving objectVSManufacturing precision

Solution Approach 1:

The patent uses parameter changes to balance compactness with aberration control by defining specific relationships between lens parameters. The conditional expressions control parameters such as refractive index ratios, curvature radii relationships, and axial distance proportions to ensure that even in a compact configuration, aberrations are properly managed through precise parameter optimization

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent applies local quality by assigning different refractive powers, curvatures, and material properties to specific lens elements based on their positions in the optical system. Each lens element is optimized with specific characteristics (convex/concave surfaces, refractive indices) to address local aberration issues while contributing to the overall compact design

Inventive Principle:

Principle #3Local quality

3Measurement precision

If six lenses are used for high-resolution imaging, then imaging quality is improved, but device complexity increases

Engineering Contradiction:

Improveimaging qualityVSAvoidlens system complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent reduces complexity through parameter changes by establishing conditional relationships that constrain the design space. The conditional expressions define specific ranges and relationships for focal lengths, curvatures, and distances, which simplifies the design process and manufacturing by providing clear parameter targets rather than requiring optimization of all possible combinations

Inventive Principle:

Principle #35Parameter changes

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 solution enables a compact high-resolution imaging lens system that satisfies various conditional expressions, reducing distortion aberration and chromatic aberration, and improving manufacturing efficiency, allowing for effective use in thin mobile terminals.