Eight-Lens Camera Optical Lens Aberration Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current camera optical lenses for handheld devices face challenges in achieving excellent optical performance while meeting requirements for large aperture, long focal length, and ultra-thinness, particularly due to unreasonable optical power, lens spacing, and lens shape in existing eight-piece lens structures.
Innovation Solution
A camera optical lens design comprising eight lenses with specific refractive powers and curvature radii, optimized by satisfying conditions such as 0.95≤f/TTL, 3.50≤f2/f≤5.00, and −20.00≤(R9+R10)/(R9−R10)≤−3.50, which balances focal length and aberration correction, enabling large aperture and ultra-thinness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If an eight-piece lens structure is adopted to improve optical performance, then imaging quality is enhanced, but the lens structure cannot meet the design requirement for large aperture, long focal length and ultra-thinness due to unreasonable optical power, lens spacing and lens shape
Solution Approach 1:
The patent applies parameter changes by optimizing the optical power distribution across the eight lenses, adjusting lens spacing (particularly d11/d12 ratio), and modifying lens shape parameters (curvature radii R9, R10) to achieve both excellent optical performance and compliance with large aperture, long focal length, and ultra-thinness requirements
Solution Approach 2:
The patent employs dynamics by making the lens structure adjustable and flexible through optimized spacing parameters and curvature radii, allowing the system to adapt to different imaging requirements while maintaining the balance between optical performance and structural reasonability
2Length of moving object
If pixel size of photosensitive devices is reduced to meet miniaturization requirements, then device dimensions are reduced, but imaging quality deteriorates due to smaller pixel area
Solution Approach 1:
The patent uses parameter changes by optimizing the optical parameters (focal length, aperture ratio, lens curvature) to enhance the light-gathering capability and resolution, thereby maintaining high imaging quality even with reduced pixel size and miniaturized device dimensions
3Device complexity
If traditional three-piece to six-piece lens structure is used, then device complexity is reduced, but imaging quality cannot meet the constantly improving requirements with smaller pixel area
Solution Approach 1:
The patent applies segmentation by dividing the lens system into eight distinct lens elements with specific optical powers and spacing, allowing each lens to perform a dedicated function in correcting different types of aberrations, thereby achieving superior imaging quality while managing structural complexity through modular design
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 achieves excellent optical performance with large aperture, long focal length, and ultra-thinness, effectively correcting aberrations and ensuring high-quality imaging suitable for mobile phone and web camera lenses with high-pixel CCD and CMOS sensors.
Implementation Method 1
a first lens having a positive refractive power, a second lens having a positive 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, a sixth lens having a positive refractive power, a seventh lens having a negative refractive power, and an eighth lens having a negative refractive power
Data Source
AI summary
The present disclosure provides a camera optical lens including eight lenses which are, from an object side to an image side in sequence: a first lens having a positive refractive power, a second lens having a positive 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, a sixth lens having a positive refractive power, a seventh lens having a negative refractive power, and an eighth lens having a negative refractive power; the camera optical lens satisfies conditions of: 0.95≤f/TTL; 3.00≤f2/f≤5.00; and 3.50≤(R9+R10)/(R9−R10)≤30.00. The camera optical lens can achieve good optical performance while meeting the design requirements for large aperture, long focal length and ultra-thinness.