Six-Lens Optical System with Aspheric Inflection Points
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Solution Overview
Problem
Traditional optical image capturing systems in portable electronic devices struggle to meet the requirements of higher pixel counts, larger apertures, and wider angles of view, leading to inadequate light intake and image quality.
Innovation Solution
The use of a six-piece optical lens system with refractive power, convex, and concave surfaces to increase light intake and improve image quality, applied in a compact optical image capturing system for electronic products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional four-lens or five-lens design is used, then device complexity is reduced, but light intake quantity and image quality are insufficient
Solution Approach 1:
The optical lens system is segmented into six distinct lens elements with specific refractive powers and surface characteristics. Each lens is designed to perform specific optical functions, with the sixth lens having a specific aspheric surface configuration to correct aberrations and control light paths, thereby increasing light intake without excessive complexity
Solution Approach 2:
The patent applies specific parameter changes by defining precise focal lengths (f1 through f6), refractive indices (Nd1 through Nd6), and dispersion coefficients for each lens element. The sixth lens has a specific aspheric surface with inflection points that create unique optical path characteristics, optimizing light intake and image quality through calculated parameter optimization
2Manufacturing precision
If aperture is increased for higher pixel requirements, then image quality improves, but light intake efficiency decreases
Solution Approach 1:
The sixth lens employs an aspheric surface instead of a traditional spherical or flat surface. This aspheric configuration with inflection points allows for optimized light path bending and aberration correction, enabling the system to maintain high image quality while improving light intake efficiency through enhanced optical path management
Solution Approach 2:
Different regions of the optical lens system are assigned different qualities and functions. The sixth lens specifically has inflection points that create localized optical path adjustments, allowing specific zones to optimize light intake while other zones handle aberration correction, thereby improving overall light intake efficiency without sacrificing image quality
3Area of stationary object
If angle of view is widened for portable electronic device requirements, then field coverage increases, but light intake and image quality deteriorate
Solution Approach 1:
The optical system uses dynamic light path management through the aspheric surface of the sixth lens with inflection points. This configuration allows the system to adapt light paths from different field angles to converge properly on the image sensor, enabling widened field coverage while maintaining adequate light intake and image quality through calculated optical path adjustments
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 effectively enhances the quantity of incoming light and improves image quality, addressing the limitations of traditional systems and enabling applications in higher-order camera lens modules.
Implementation Method 1
an optical image capturing system with a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and an image plane... use combination of refractive power, convex and concave surfaces of six-piece optical lenses
Data Source
AI summary
A six-piece optical image capturing system is disclosed. In order from an object side to an image side, the optical lenses along the optical axis include a first lens with refractive power; a second lens with refractive power; a third lens with refractive power; a fourth lens with refractive power; a fifth lens with refractive power, and a sixth lens with negative refractive power. At least one lens among the first lens to the fifth lens has positive refractive power. The image-side surface and object-side surface of the sixth lens are aspheric, and at least one of the image-side surface and the object-side surface of the sixth lens has an inflection point. The optical lens of the optical image capturing system can increase aperture value and improve the imagining quality for use in compact cameras.