Eight-Lens Wide-Angle Assembly for FOV, Resolution, and Thermal Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wide-angle lens assemblies fail to meet the requirements of large field of view, high resolution, and resistance to environmental temperature changes simultaneously.
Innovation Solution
A wide-angle lens assembly comprising specific configurations of lenses with defined radii of curvature, refractive powers, and arrangements that satisfy certain conditions, including combinations of meniscus, biconvex, and biconcave lenses, to enhance field of view, resolution, and temperature resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a conventional wide-angle lens assembly structure is used, then the field of view can be increased, but the resolution and temperature resistance deteriorate
Solution Approach 1:
The lens assembly is divided into multiple lens groups (first through eighth lenses) with different refractive powers and configurations. Each lens group performs specific optical functions, allowing the system to achieve wide field of view while maintaining high resolution through coordinated action of segmented components.
Solution Approach 2:
Different lens elements are designed with specific local properties: the first lens has negative refractive power with a concave image-side surface for wide-angle correction, while the fourth lens has positive refractive power with a convex image-side surface for focusing. This local differentiation of optical properties enables simultaneous achievement of wide field of view and high resolution.
2Area of moving object
If a conventional wide-angle lens assembly structure is used, then the field of view can be increased, but the temperature resistance deteriorates
Solution Approach 1:
The patent specifies precise parameter ranges for lens curvature radii (R51, R52, R71, R72) and thicknesses (T5, T7) that optimize the optical system's thermal stability. By controlling these parameters within specific ranges, the lens assembly maintains its optical performance across temperature variations while achieving wide field of view.
3Manufacturing precision
If the lens configuration is optimized for high resolution, then the resolution is improved, but the field of view decreases
Solution Approach 1:
The lens assembly employs a dynamic balance between converging and diverging lens elements. The first lens (negative power) expands the field of view while the fourth lens (positive power) maintains resolution. The interplay between these opposing optical effects creates a system that achieves both wide field of view and high resolution simultaneously.
4Reliability
If the lens configuration is optimized for temperature resistance, then the temperature resistance is improved, but the optical performance deteriorates
Solution Approach 1:
The patent defines specific parameter ranges for lens thicknesses (T5, T7) and curvature radii that simultaneously optimize thermal stability and optical performance. These parameter constraints ensure that the lens assembly maintains both temperature resistance and high optical quality without compromising either aspect.
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 increased field of view, improved resolution, and effective aberration correction while resisting environmental temperature changes, with optimized optical performance.
Implementation Method 1
The first lens is with negative refractive power and includes a concave surface facing an image side
Implementation Method 2
The fourth lens is with positive refractive power and includes a convex surface facing the image side
Implementation Method 3
The eighth lens is with positive refractive power and includes a convex surface facing an object side
Data Source
AI summary
A wide-angle lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens. The first lens is with negative refractive power and includes a concave surface facing an image side. The second lens is with refractive power. The third lens is with refractive power. The fourth lens is with positive refractive power and includes a convex surface facing the image side. The fifth lens is with positive refractive power. The sixth lens is with refractive power. The seventh lens is with refractive power. The eighth lens is with positive refractive power and includes a convex surface facing an object side. The first, second, third, fourth, fifth, sixth, seventh, and eighth lenses are arranged in order from the object side to the image side along an optical axis.