Four-Lens Wide-Angle Optics for Aberration Correction
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Solution Overview
Problem
Current wide-angle camera lenses are structurally complex, costly, and difficult to debug due to issues like spherical aberration, convergence aberration, astigmatism, and chromatic aberration, leading to high production costs and large size.
Innovation Solution
A wide-angle optical system comprising four lenses, including specific mirror surfaces and refractive indices, designed to correct aberrations and reduce size, with an angle of view field of 180 to 190 degrees and a relative aperture of 2.0 to 2.8, utilizing high refractive index lenses and a protective sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If at least six lenses are used in the ultra-wide-angle camera structure, then the aberration correction capability is improved, but the device complexity and volume increase
Solution Approach 1:
The optical system is divided into four distinct lens groups, each with specific optical powers and aberration correction functions. The first lens group corrects spherical aberration, the second corrects coma, the third corrects astigmatism, and the fourth corrects chromatic aberration. This segmentation allows complex aberration correction to be achieved through coordinated action of simpler individual components rather than requiring a single complex lens element.
Solution Approach 2:
The patent specifies precise parameter ranges for each lens group including optical power (negative for first and fourth groups, positive for second and third groups), focal length relationships, and curvature radii. By optimizing these parameters within defined ranges, the system achieves effective aberration correction with only four lens groups, reducing the number of components while maintaining correction capability.
2Manufacturing precision
If at least six lenses are used in the ultra-wide-angle camera structure, then the aberration correction capability is improved, but the production cost increases
Solution Approach 1:
The optical system is divided into four distinct lens groups, each with specific optical powers and aberration correction functions. The first lens group corrects spherical aberration, the second corrects coma, the third corrects astigmatism, and the fourth corrects chromatic aberration. This segmentation allows complex aberration correction to be achieved through coordinated action of simpler individual components rather than requiring a single complex lens element.
Solution Approach 2:
The patent specifies precise parameter ranges for each lens group including optical power (negative for first and fourth groups, positive for second and third groups), focal length relationships, and curvature radii. By optimizing these parameters within defined ranges, the system achieves effective aberration correction with only four lens groups, reducing the number of components while maintaining correction capability.
3Manufacturing precision
If at least six lenses are used in the ultra-wide-angle camera structure, then the aberration correction capability is improved, but the camera volume increases
Solution Approach 1:
The optical system is divided into four distinct lens groups, each with specific optical powers and aberration correction functions. The first lens group corrects spherical aberration, the second corrects coma, the third corrects astigmatism, and the fourth corrects chromatic aberration. This segmentation allows complex aberration correction to be achieved through coordinated action of simpler individual components rather than requiring a single complex lens element.
Solution Approach 2:
The patent specifies precise parameter ranges for each lens group including optical power (negative for first and fourth groups, positive for second and third groups), focal length relationships, and curvature radii. By optimizing these parameters within defined ranges, the system achieves effective aberration correction with only four lens groups, reducing the number of components while maintaining correction capability.
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 effectively corrects spherical aberration, coma, and chromatic aberration, reduces camera size, and lowers production costs while maintaining high image quality within ±90 degrees.
Implementation Method 1
the first lens is a negative lens... a light beam is incident from the first mirror surface into the first lens and configured to pass through the second mirror surface
Implementation Method 2
the second lens is a positive lens... pass through the third mirror surface, the fourth mirror surface
Implementation Method 3
the third lens is a positive lens... pass through the fifth mirror surface, the sixth mirror surface
Implementation Method 4
the fourth lens is a negative lens... pass through the seventh mirror surface, and the eighth mirror surface
Data Source
AI summary
Disclosed are a wide-angle optical system and an optical device. The first lens includes a first mirror surface and a second mirror surface, the first mirror surface is a convex surface, and the second mirror surface is a concave surface; the second lens includes a third mirror surface and a fourth mirror surface, and both the third mirror surface and the fourth mirror surface are convex surfaces; the third lens includes a fifth mirror surface and a sixth mirror surface, and both the fifth mirror surface and the sixth mirror surface are convex surfaces; the fourth lens includes a seventh mirror surface and an eighth mirror surface, the seventh mirror surface is a concave surface, and the eighth mirror surface is a convex surface.