Six-Lens Camera Optical System for Ultra-Thin Wide-Angle Imaging
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Solution Overview
Problem
There is a need for a camera optical lens with excellent optical characteristics, large aperture, wide-angle, and ultra-thinness suitable for handheld devices, such as smartphones and web cameras, which can effectively correct aberrations and meet the increasing demands of high-pixel imaging systems.
Innovation Solution
A six-piece lens structure is designed with specific refractive powers and curvature radii for each lens, along with precise thickness and focal length relationships to achieve the desired optical performance, including a convex or concave surface configuration for each lens to correct aberrations and ensure ultra-thinness and wide-angle capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a multi-piece lens structure is adopted to improve imaging quality, then optical performance is improved, but device thickness increases
Solution Approach 1:
The patent applies parameter changes by precisely controlling the curvature radii (R1-R12), thicknesses (d1-d6), and spacing (d2-d7) of each lens element to satisfy specific mathematical relationships. This allows the six-piece lens structure to achieve excellent imaging quality while maintaining ultra-thin profile through optimized optical parameters
Solution Approach 2:
Each lens element (L1-L6) is designed with specific local properties: positive or negative refractive power, convex or concave surfaces, and specific curvature radii. The first lens has positive power with convex object side, the second has negative power, and so on. This localized optimization of each element's properties enables the overall system to achieve high imaging quality in a compact form
2Measurement precision
If lens curvature radii are optimized to correct aberrations, then optical performance is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent establishes specific mathematical relationships for curvature radii (such as R4/R7 between -3.50 and -1.00, and (R7+R8)/(R7-R8) between -15.00 and -5.00) that balance aberration correction with manufacturability. These parameter ranges are optimized to achieve excellent optical performance while remaining feasible for mass production
3Length of moving object
If lens thickness ratios are controlled to achieve ultra-thinness, then device portability is improved, but optical path length is reduced
Solution Approach 1:
The patent controls thickness parameters (d1, d3, d9) and their ratios (d1/d3 between 3.00 and 5.00, d8/d9 between 0.40 and 0.80) to achieve ultra-thin form factor. Simultaneously, the spacing between elements (d2, d4, d6, d7, d8) is optimized to maintain sufficient optical path length for effective light manipulation and aberration correction
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 optical lens achieves excellent optical characteristics, large aperture, and wide-angle performance while maintaining ultra-thinness, effectively correcting aberrations and being suitable for high-pixel imaging devices like smartphones and web cameras.
Implementation Method 1
a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power
Data Source
AI summary
The present disclosure relates to a technical field of optical lenses, and discloses a camera optical lens. The camera optical lens includes six lenses. An order of the six lenses is sequentially from an object side to an image side, which is shown as follows: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power. The camera optical lens provided by the present disclosure has excellent optical characteristics, and further has characteristics of large aperture, wide-angle, and ultra-thin, especially suitable for mobile phone camera lens assemblies and WEB camera lenses, which are composed of camera components having high pixels, such as CCD and CMOS.