Ten-Lens Optical Imaging Assembly for Ultrathin High-Resolution Mobile Cameras
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Solution Overview
Problem
The increasing demand for high-resolution camera lenses in mobile phones requires an optical imaging lens assembly with a larger image surface and ultrathin design to accommodate higher pixel counts and improved imaging quality, while maintaining a compact form factor.
Innovation Solution
The optical imaging lens assembly consists of ten lenses with specific refractive powers and surface curvatures, arranged to optimize focal lengths, field of view, and thickness, ensuring a balanced distribution of refractive power and minimizing aberrations, with at least four lenses made of plastic to reduce weight and enhance machinability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of lenses is increased to improve resolution and imaging quality, then the imaging quality and resolving power are improved, but the device complexity and overall thickness increase
Solution Approach 1:
The patent divides the imaging system into ten separate lens elements with specific refractive powers (positive or negative) arranged in sequence from object side to image side. Each lens element contributes to correcting specific aberrations and achieving the desired imaging quality, with at least four lenses made of plastic material to reduce weight and enable thinner design
Solution Approach 2:
The patent employs composite material selection by using plastic materials for at least four of the ten lenses. This allows optimization of weight, machinability, and optical properties while maintaining the complex multi-element structure necessary for high-resolution imaging
2Measurement precision
If the number of lenses is increased to improve resolution, then the resolving power is improved, but the overall thickness of the camera module increases
Solution Approach 1:
The patent optimizes the refractive power parameters of each lens element, with specific lenses having positive or negative refractive powers. The effective focal length f and maximum field of view FOV satisfy f×tan(1⁄2FOV)>6.0 mm, allowing high resolution with controlled thickness. The ratio TTL/ImgH is controlled within specific ranges to balance thickness and imaging performance
3Measurement precision
If the image surface size is increased to accommodate higher pixel counts, then the resolution is improved, but the device dimensions and thickness increase
Solution Approach 1:
The patent achieves a large image surface with diameter or maximum diagonal length ≥6.0 mm through dynamic optimization of the optical path and lens positioning. The ten-lens configuration with specific spacing and curvature radii enables light rays to converge properly across the large image surface while maintaining compact overall dimensions and ultrathin profile
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 configuration achieves high imaging quality, wide field of view, and an ultrathin design, effectively addressing the need for improved resolution and compactness in mobile phone camera lenses.
Implementation Method 1
an optical imaging lens assembly, which sequentially includes from an object side to an image side along an optical axis: a first lens with a positive refractive power; a second lens with a refractive power; a third lens with a refractive power; a fourth lens with a refractive power; a fifth lens with a positive refractive power; a sixth lens with a negative refractive power; a seventh lens with a refractive power; an eighth lens with a positive refractive power; a ninth lens with a refractive power; and a tenth lens with a negative refractive power
Data Source
AI summary
The disclosure provides an optical imaging lens assembly, which sequentially includes from an object side to an image side along an optical axis: a first lens with a positive refractive power; a second lens with a refractive power; a third lens with a refractive power; a fourth lens with a refractive power; a fifth lens with a positive refractive power; a sixth lens with a negative refractive power; a seventh lens with a refractive power; an eighth lens with a positive refractive power; a ninth lens with a refractive power; and a tenth lens with a negative refractive power; wherein an effective focal length f of the optical imaging lens assembly and a maximum field of view FOV of the optical imaging lens assembly satisfy f×tan(½FOV)>6.0 mm.