Six-Element Optical Imaging Lens for Vehicle Electronics
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Solution Overview
Problem
The challenge in designing optical imaging lenses for vehicle electronics is to achieve improved imaging quality with a great aperture and wide view angle while overcoming production difficulties and technical barriers, such as size reduction and material properties.
Innovation Solution
The optical imaging lens is designed with six lens elements, where the convex or concave shape of the surfaces is controlled to enhance imaging quality, and specific inequalities are satisfied to optimize the thickness and refractive indices of the lens elements, allowing for a broader half field of view and aperture while shortening the lens length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the number of lens elements is increased to improve imaging quality, then imaging quality is improved, but device complexity increases
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 each element to contribute differently to correcting optical aberrations, thereby improving overall imaging quality while managing system complexity through functional division
Solution Approach 2:
Different lens elements are assigned different local properties: the first lens element has negative refracting power with specific convex/concave surface shapes, while subsequent elements have positive refracting power. Each element's object-side and image-side surfaces are designed with specific convex or concave characteristics to address specific aberration types locally, optimizing the overall system performance
2Manufacturing precision
If the aperture is increased to improve imaging quality, then imaging quality is improved, but lens length increases
Solution Approach 1:
The lens elements incorporate aspherical surfaces with specific convex or concave shapes to control light ray paths more efficiently than spherical surfaces. This allows for better correction of optical aberrations and more compact lens design, enabling larger effective aperture without proportionally increasing lens length
Solution Approach 2:
Specific parameter ranges are established for lens element thicknesses (T1-T6), air gaps (G12-G56), and focal lengths (f1-f6) to optimize the balance between aperture size and lens length. The ratio constraints on these parameters ensure that the lens maintains compact dimensions while achieving the desired aperture and imaging quality
3Length of stationary object
If the lens elements are proportionally shrunk to reduce size, then lens length is reduced, but imaging quality deteriorates
Solution Approach 1:
Rather than uniform scaling, the patent establishes specific parameter relationships and ratios between different lens element dimensions. This allows non-proportional optimization where certain elements can be thinner or spaced differently to reduce overall length while maintaining the optical performance required for high-quality imaging
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 results in improved imaging quality, a broader half field of view, and a shorter lens length, effectively addressing the technical barriers and production challenges in creating high-performance optical imaging lenses for vehicle applications.
Implementation Method 1
Each of the first, second, third, fourth, fifth and sixth lens elements may also have an object-side surface facing toward the object side and allowing imaging rays to pass through. Each of the first, second, third, fourth, fifth and sixth lens elements may also have an image-side surface facing toward the image side and allowing the imaging rays to pass through.
Data Source
AI summary
The present disclosure provides for various embodiments of optical imaging lenses. An optical imaging lens may comprise six lens elements positioned in an order from an object side to an image side. By controlling the convex or concave shape of the surfaces of the lens elements, the optical imaging lens may provide great view angle and proper length of the optical imaging lens and improve the imaging quality.