10-Lens Optical Imaging System for Slim High-Resolution Portable Devices
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Solution Overview
Problem
The challenge is to develop a slim optical imaging system for portable devices that achieves high resolution while maintaining a miniaturized form factor, as the demand for high-resolution images increases and the number of lenses in cameras grows, but existing systems struggle to balance resolution, image brightness, and compactness effectively.
Innovation Solution
The optical imaging system comprises 10 lenses with specific refractive powers and configurations, including positive, negative, and aspherical surfaces, optimized by conditional expressions to achieve a low F-number and bright images, with lenses made of glass or plastic materials, and an infrared cut filter to enhance image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of lenses is increased to achieve high resolution, then image quality is improved, but the overall length and complexity of the optical system increase
Solution Approach 1:
The optical system is divided into multiple lens groups with different refractive powers (positive and negative lenses alternating). This segmentation allows each lens to contribute differently to the overall optical function, enabling high resolution while controlling the total system length through optimized grouping and spacing of individual lens elements.
Solution Approach 2:
The patent utilizes lenses with varying refractive powers (positive and negative) and different material properties (glass or plastic with specific refractive indices). By changing these optical parameters and combining them in specific configurations, the system achieves high resolution imaging while maintaining a compact form factor suitable for portable devices.
2Measurement precision
If the number of lenses is increased to achieve high resolution, then image quality is improved, but device complexity increases
Solution Approach 1:
The complex optical system is segmented into manageable lens groups with defined refractive power characteristics. This segmentation simplifies the design and manufacturing process by allowing each group to be optimized independently while contributing to the overall high-resolution imaging capability of the complete system.
Solution Approach 2:
The lens design incorporates elements that serve multiple functions: correcting optical aberrations, controlling light paths, and achieving focus. By designing lenses with multifunctional capabilities, the system reduces the need for additional separate components, thereby managing complexity while maintaining high resolution performance.
3Illumination intensity
If the F-number is reduced to produce bright images, then image brightness is improved, but the optical system requires larger aperture lenses increasing size
Solution Approach 1:
The patent employs lenses with specific refractive index parameters and optimized curvature radii to reduce the F-number. By carefully selecting and combining lenses with different refractive powers and material properties, the system achieves low F-number for bright image production without requiring excessively large aperture dimensions, thus maintaining compactness in portable devices.
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 enables a high-resolution, slim optical imaging system that produces bright images and videos with a low F-number, effectively addressing the need for compact, high-performance imaging in portable devices.
Implementation Method 1
an optical imaging system includes 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, sequentially disposed from an object side to an imaging side, wherein the first lens has positive refractive power, the second lens has positive refractive power, and two of the third lens to the fifth lens have positive refractive power
Data Source
AI summary
An optical imaging system is provided. The optical imaging system includes 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, sequentially disposed from an object side to an imaging side. The first lens may have positive refractive power, the second lens may have positive refractive power, and two of the third to fifth lenses may have positive refractive power.