Six-Lens Wide-Angle Assembly for Compact High-Resolution Imaging

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Solution Overview

Problem

Existing wide-angle lens assemblies struggle to meet the requirements of large field of view, miniaturization, and high resolution simultaneously.

Innovation Solution

A wide-angle lens assembly comprising specific configurations of lenses with refractive powers and surface orientations, including a first lens with negative power, a second biconvex lens, a third biconvex lens, a fourth meniscus lens with negative power, a fifth biconvex lens, and a sixth biconcave lens, arranged along an optical axis, with specific optical parameters to enhance field of view, reduce total lens length, and improve resolution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If the field of view is increased, then the coverage area is improved, but the lens length increases

Engineering Contradiction:

Improvefield of viewVSAvoidlens length

Core Design Contradiction:

Area of moving objectVSLength of moving object

Solution Approach 1:

The lens system is divided into six separate lens elements with different refractive powers and surface configurations. Each lens element is optimized for specific optical functions, allowing the system to achieve a wide field of view while maintaining a compact overall length through segmented optical design.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent employs complex surface geometries including aspheric surfaces and varying curvatures on different lens elements. By optimizing surfaces in multiple dimensional aspects (sagittal, tangential, radial curvatures), the system achieves compact lens length while maintaining wide field of view coverage.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Length of moving object

If the lens length is decreased, then the miniaturization is improved, but the resolution decreases

Engineering Contradiction:

Improvelens lengthVSAvoidresolution

Core Design Contradiction:

Length of moving objectVSMeasurement precision

Solution Approach 1:

Different regions of the lens system have optimized local properties - each lens element has specific refractive indices, curvatures, and thicknesses tailored to its position and function. This local optimization allows compact lens length while maintaining high resolution through precise control of light paths and aberrations in each region.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent utilizes varying optical parameters including refractive indices, surface curvatures, and lens thicknesses across different elements. By carefully changing these parameters to optimize each lens element's contribution, the system achieves both miniaturization and high resolution performance.

Inventive Principle:

Principle #35Parameter changes

3Area of moving object

If the field of view is increased, then the coverage area is improved, but the aberration increases

Engineering Contradiction:

Improvefield of viewVSAvoidaberration

Core Design Contradiction:

Area of moving objectVSObject-generated harmful factors

Solution Approach 1:

The lens elements feature asymmetric surface configurations with different curvatures on object-side and image-side surfaces. This asymmetric design allows the system to achieve wide field of view while correcting optical aberrations through carefully balanced asymmetric surface geometries that compensate for off-axis light path deviations.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The patent converts the potential harm of increased aberrations into a benefit by using specific lens configurations (meniscus and biconvex shapes with controlled curvatures) that intentionally introduce compensating optical effects. The asymmetric curvatures and refractive power distributions are designed to cancel out aberrations while maintaining wide coverage.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 lens assembly achieves an increased field of view, reduced total lens length, and improved resolution while effectively correcting aberrations, ensuring good optical performance.

Implementation Method 1

The first lens is with refractive power. The second lens is with refractive power and includes a convex surface facing an object side. The third lens is with positive refractive power. The fourth lens is with refractive power and includes a convex surface facing the object side. The fifth lens is with positive refractive power and includes a convex surface facing the object side. The sixth lens is with refractive power and includes a concave surface facing an image side.

Methodology Applied

Scientific EffectRefraction: Refraction

Data Source

PatentUS20250362481A1Wide-angle lens assembly

Publication Date: 2025.11.27 ASIA OPTICAL CO INC

AI summary

A wide-angle lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is with refractive power. The second lens is with refractive power and includes a convex surface facing an object side. The third lens is with positive refractive power. The fourth lens is with refractive power and includes a convex surface facing the object side. The fifth lens is with positive refractive power and includes a convex surface facing the object side. The sixth lens is with refractive power and includes a concave surface facing an image side. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are arranged in order from the object side to the image side along an optical axis.