Optical Imaging Lens with Compound Assemblies for Distortion Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Designing an optical imaging lens that achieves high image quality with low distortion while considering constraints of small size and cost is a significant challenge.
Innovation Solution
The optical imaging lens is designed with a specific arrangement of optical assemblies, including compound lenses formed by adhering multiple lenses, to achieve negative and positive refractive powers. This configuration includes a first optical assembly with negative refractive power, a second optical assembly with negative refractive power, a third optical assembly with positive refractive power, an aperture, a fourth optical assembly with positive refractive power, a fifth optical assembly with positive refractive power, and a sixth optical assembly with positive refractive power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a lens with good imaging quality is designed, then image quality and resolution are improved, but device size and cost increase
Solution Approach 1:
The optical imaging lens is divided into six distinct optical assemblies, each with specific refractive power characteristics. This segmentation allows each assembly to be optimized independently for its specific function while contributing to the overall imaging quality, resolving the contradiction between image quality and device complexity by breaking down the complex system into manageable functional units
Solution Approach 2:
The optical assemblies are designed to serve multiple functions: correcting optical aberrations, controlling light paths, and achieving both visible and infrared imaging. This multi-functionality reduces the need for additional separate components, thereby improving image quality without proportionally increasing device complexity
2Manufacturing precision
If distortion is reduced through optical design, then image quality is improved, but lens complexity and manufacturing difficulty increase
Solution Approach 1:
Different optical assemblies are assigned specific local functions: the first two assemblies with negative refractive power address specific aberration zones, while the third assembly with positive refractive power handles another region. This local quality approach allows distortion control to be achieved through targeted corrections in specific areas rather than requiring complex modifications throughout the entire lens system
Solution Approach 2:
The patent employs compound lenses formed by adhering multiple lenses together, creating composite optical structures. These composite materials approach allows the combination of different glass types and refractive indices in a single assembly, enabling precise distortion control while maintaining manufacturability through standardized adhesive bonding processes
3Reliability
If compound lenses are used to improve imaging quality, then optical performance is enhanced, but manufacturing precision requirements and cost increase
Solution Approach 1:
The compound lenses are segmented into multiple sub-lenses that are adhered together. This segmentation allows each sub-lens to be manufactured and tested independently before assembly, reducing the overall manufacturing precision requirements while maintaining the optical performance benefits of compound lens structures
Solution Approach 2:
Adhesive layers serve as intermediaries between the multiple lens elements in compound lenses. These intermediary materials provide tolerance for manufacturing variations while maintaining optical performance, reducing the stringent precision requirements that would otherwise be needed for direct lens-to-lens contact
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 design effectively enhances image quality and reduces distortion, while also meeting the imaging requirements for visible light during the day and infrared light at night.
Implementation Method 1
a first optical assembly having negative refractive power, a second optical assembly having negative refractive power, a third optical assembly having positive refractive power... a fourth optical assembly having positive refractive power, a fifth optical assembly having positive refractive power, and a sixth optical assembly having positive refractive power
Data Source
AI summary
An optical imaging lens, in order from an object side to an image side along an optical axis, includes a first optical assembly, a second optical assembly, a third optical assembly, an aperture, a fourth optical assembly, a fifth optical assembly, and a sixth optical assembly, wherein two of the first optical assembly, the second optical assembly, the third optical assembly, the fourth optical assembly, the fifth optical assembly, and the sixth optical assembly are a compound lens formed by adhering at least two lenses, while the others are single lens, thereby achieving the effect of high image quality and low distortion and satisfying the imaging requirement of visible light during the day and infrared light at night.