Ten-Element Image-Capturing Optics for Compact Wide-Field Imaging
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Solution Overview
Problem
Conventional optical systems struggle to balance high image quality, low sensitivity, proper aperture size, miniaturization, and desirable field of view, especially with the advancements in semiconductor technology and increasing functionality requirements in electronic devices.
Innovation Solution
An image capturing optical system comprising ten lens elements, each with specific refractive powers and surface configurations, including concave and convex surfaces with critical and inflection points, optimized to achieve balanced performance across these parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional optical system designs are used, then manufacturing and assembly are simpler, but image quality deteriorates and field of view is limited
Solution Approach 1:
The optical system is divided into ten distinct lens elements with specific refractive powers and surface configurations. Each lens element (first through tenth) has defined object-side and image-side surfaces with specific curvature characteristics, allowing complex optical functions to be distributed across multiple simpler components rather than requiring a single complex element.
Solution Approach 2:
Different regions of the lens surfaces have different curvatures and optical properties. The patent specifies that certain surfaces have inflection points and critical points in off-axis regions, creating local variations in surface quality that optimize performance for specific field regions while maintaining overall system functionality.
2Volume of moving object
If the optical system is miniaturized, then device size is reduced, but image quality and field of view deteriorate
Solution Approach 1:
The ten lens elements are arranged in a compact sequence along the optical path with optimized spacing between them. The system achieves miniaturization by nesting multiple functional elements in a condensed configuration where each element contributes to overall performance while maintaining a reduced total track length compared to conventional designs.
Solution Approach 2:
The patent utilizes complex surface geometries with inflection and critical points to achieve three-dimensional surface profiles that provide enhanced optical control within a reduced two-dimensional footprint. This allows the system to maintain image quality and field of view while reducing overall size by optimizing the spatial arrangement and surface topology of lens elements.
3Use of energy by moving object
If the aperture size is increased, then light gathering ability is improved, but sensitivity control becomes difficult and system size increases
Solution Approach 1:
The patent optimizes the refractive powers, curvature radii, and spacing parameters of the ten lens elements to achieve proper aperture characteristics. By carefully selecting and adjusting these optical parameters, the system achieves appropriate light gathering ability and sensitivity control without requiring complex aperture mechanisms or large physical dimensions.
4Manufacturing precision
If more lens elements are added, then image quality and field of view are improved, but system complexity and size increase
Solution Approach 1:
The optical system is divided into ten distinct lens elements with specific refractive powers and surface configurations. Each lens element (first through tenth) has defined object-side and image-side surfaces with specific curvature characteristics, allowing complex optical functions to be distributed across multiple simpler components rather than requiring a single complex element.
Solution Approach 2:
The ten lens elements are arranged in a compact sequence along the optical path with optimized spacing between them. The system achieves miniaturization by nesting multiple functional elements in a condensed configuration where each element contributes to overall performance while maintaining a reduced total track length compared to conventional designs.
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 system enhances image quality, increases field of view, and reduces size while correcting aberrations, making it suitable for modern electronic devices with improved functionality.
Implementation Method 1
The first lens element has positive refractive power. The tenth lens element has negative refractive power.
Data Source
AI summary
An image capturing optical system includes ten lens elements which are, in order from an object side to an image side along an optical path: a first lens element having positive refractive power, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element, a ninth lens element and a tenth lens element having negative refractive power. Each of the ten lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The image-side surface of the second lens element is concave in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the image capturing optical system has at least one critical point in an off-axis region thereof.