Ten-Lens Camera Group for Large Aperture and High Image Quality
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current camera lens assemblies in portable electronic devices, such as smartphones, face challenges in achieving high image quality and large aperture under low-light conditions due to insufficient design freedom, particularly with F numbers above 2.0, which limits their imaging capabilities.
Innovation Solution
A camera lens group comprising ten lenses with specific refractive powers and optimized optical parameters, including aspheric surfaces, is designed to provide ultra-thin, large aperture, and high image quality by carefully configuring refractive power, surface shapes, and spaced intervals along the optical axis, ensuring improved light convergence and reduced aberrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-piece camera lens group is used to provide design freedom and improve imaging performance, then image quality and aperture can be improved, but the device complexity and number of lens elements increase
Solution Approach 1:
The camera lens group is divided into multiple lens elements (at least 6 pieces) with different refractive powers and surface curvatures. Each lens element is optimized independently to correct specific aberrations, allowing the system to achieve high imaging performance through cumulative correction effects while maintaining manageable complexity through modular design
Solution Approach 2:
Different lens elements are assigned specific functions based on their local optical properties. For example, some lenses have positive refractive power while others have negative refractive power, and surface curvatures are specifically designed for each element to address particular aberration types at different positions in the optical path
2Illumination intensity
If the F number is reduced below 2.0 to improve low-light performance, then light flux increases, but the lens design becomes more difficult to achieve good image quality
Solution Approach 1:
The lens system achieves F number below 2.0 by optimizing multiple parameters simultaneously: refractive powers of individual lenses, surface curvature radii, thicknesses, and spacing between elements. This comprehensive parameter optimization allows the system to gather more light while maintaining excellent image quality through precise control of optical paths and aberration correction
3Length of moving object
If the camera lens group is made ultra-thin to meet portable device requirements, then the total track length is reduced, but the optical design constraints increase
Solution Approach 1:
Aspheric surfaces are employed on one or more lens elements to replace traditional spherical surfaces. The aspheric profiles allow for more compact optical path folding and better aberration correction in a reduced space, enabling ultra-thin design while maintaining optical performance through sophisticated surface geometry rather than increased system 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 camera lens group achieves enhanced image quality, increased light flux, and a larger image plane, enabling better low-light performance and meeting the demands for ultra-thin, high-performance camera systems in portable devices.
Implementation Method 1
each of the first to the tenth lenses has refractive power
Implementation Method 2
at least one of an object-side surface of the first lens to an image-side surface of the tenth lens is aspheric
Data Source
AI summary
The present disclosure discloses a camera lens group including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens. Each of the first lens to the tenth lens has refractive power. Half of a diagonal length ImgH of an effective pixel area on an imaging plane of the camera lens group satisfies: ImgH≥6.00 mm.