Six-Piece Camera Lens Glass Plastic Aberration Correction
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Solution Overview
Problem
There is a growing demand for ultra-thin wide-angle camera lenses with good optical characteristics and fully corrected chromatic aberration, particularly for handheld devices like smartphones and digital cameras, where the shrinking pixel size of photosensitive devices and increasing imaging quality requirements pose challenges for traditional lens designs.
Innovation Solution
A six-piece camera optical lens design is proposed, comprising lenses made of glass and plastic materials, with specific refractive power, focal length, and curvature radius conditions to achieve ultra-thin and wide-angle capabilities while correcting aberrations, including spherical and chromatic aberrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional three-piece or four-piece lens structure is used, then the lens can be manufactured with simpler process, but the imaging quality is insufficient and chromatic aberration cannot be fully corrected
Solution Approach 1:
The lens system is divided into six separate lens elements with specific refractive powers and material properties. Each lens element (first through sixth lenses) is independently designed with specific curvature radii, thicknesses, and materials (glass or plastic) to collectively achieve superior imaging quality and chromatic aberration correction that cannot be obtained with fewer elements.
2Manufacturing precision
If the number of lens pieces is increased to five, six, or seven, then the chromatic aberration correction is improved, but the lens thickness increases and miniaturization is compromised
Solution Approach 1:
The patent specifies precise parameter ranges for each lens element including curvature radii (e.g., R1, R2, R3, R4, R5, R6), thicknesses (d1, d2, d3, d4, d5, d6), and refractive indices (n1, n2, n3, n4, n5, n6) to achieve optimal chromatic aberration correction while controlling overall lens thickness. The conditional expressions (1) through (6) define relationships between these parameters to balance correction performance with compactness.
Solution Approach 2:
The lens system employs composite material construction with specific Abbe number requirements (v1, v2, v3, v4, v5, v6) for different lens elements. By selecting materials with different dispersive properties (different Abbe numbers), the system achieves effective chromatic aberration correction across multiple wavelengths while maintaining a compact form factor suitable for mobile devices.
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 design results in a compact, high-performance camera optical lens with excellent optical characteristics and full correction of on-axis and off-axis chromatic aberrations, maintaining miniaturization characteristics and enhancing imaging quality.
Implementation Method 1
a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 arranged from the object side to the image side
Data Source
AI summary
The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of glass material, the second lens is made of glass material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.