Six-Lens Camera Optical Lens for Wide-Angle Aberration Correction
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Solution Overview
Problem
There is an urgent need for a wide-angled camera lens with excellent optical characteristics, small size, and fully corrected aberrations, particularly for handheld devices like smartphones and digital cameras.
Innovation Solution
A camera optical lens comprising six lenses, with specific refractive powers and curvature radii, arranged from object side to image side, including a first lens with positive refractive power, a second lens with negative refractive power, and so on, satisfying certain relationships for optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-piece lens structure is adopted to improve imaging quality, then optical performance is improved, but device complexity and size increase
Solution Approach 1:
The optical system is divided into six separate lens elements with alternating positive and negative refractive powers, allowing each element to be optimized for specific aberration correction while maintaining overall system performance
Solution Approach 2:
Each lens element is designed with specific curvature radii and refractive power characteristics tailored to its position in the optical train, with the first lens having positive power for converging light, followed by negative power lenses for diverging and correcting aberrations, creating localized optical functions throughout the system
2Reliability
If lens structure is refined to correct aberrations, then imaging quality is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies precise parameter ranges for curvature radii (R1 through R12) and their ratios, along with thickness ratios (d1/TTL, d3/TTL, etc.), providing manufacturing guidance that balances optical performance with manufacturability
Solution Approach 2:
The lens system uses multiple lens elements with different refractive indices and Abbe numbers, allowing chromatic aberrations to be corrected through the combined optical properties of different materials rather than relying solely on precise geometric shaping
3Length of moving object
If ultra-thin design is implemented to meet portability requirements, then device thickness is reduced, but optical performance and aberration correction become more difficult
Solution Approach 1:
The patent employs aspheric surfaces on multiple lens elements, allowing the curvature to vary dynamically across the surface rather than maintaining a constant radius, which enables better aberration correction in a compact form factor
Solution Approach 2:
The patent controls the axial spacing between lens elements (d2, d4, d6, d8, d10) as a critical dimension, using precise spacing to achieve the desired optical path length and aberration correction while minimizing the overall total optical length
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 achieves excellent optical performance with large aperture, wide-angle, and ultra-thin design, suitable for high-pixel camera components like CCD and CMOS, fully correcting aberrations and meeting the design requirements for mobile phone camera lenses and web camera lenses.
Implementation Method 1
a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power
Data Source
AI summary
The present disclosure relates to a technical field of optical lenses, and discloses a camera optical lens. The camera optical lens includes six lenses. An order of the six lenses is sequentially from an object side to an image side, which is shown as follows: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power. The camera optical lens provided by the present disclosure has excellent optical characteristics, and further has characteristics of large aperture, wide-angle, and ultra-thin, especially suitable for mobile phone camera lens assemblies and WEB camera lenses, which are composed of camera components having high pixels, such as CCD and CMOS.