Multi-element Optical Lens Miniaturization
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Solution Overview
Problem
The demand for compact optical lenses with high imaging quality and low manufacturing costs has increased, as existing solutions struggle to achieve both miniaturization and improved image quality simultaneously while maintaining affordability.
Innovation Solution
The optical lens design consists of a sequence of lenses with specific refractive powers, including negative and positive refractive powers, arranged along an optical axis, with certain spacing and curvature conditions, utilizing spherical and aspheric lenses made of glass or plastic materials, to achieve a compact and high-quality imaging system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the optical lens is miniaturized, then the volume is reduced, but the imaging quality deteriorates
Solution Approach 1:
The optical lens is divided into five individual lens elements (first lens L1, second lens L2, third lens L3, fourth lens L4, and fifth lens L5) arranged in sequence along the optical axis. Each lens element contributes to the overall optical power and imaging quality, allowing the system to achieve high-quality imaging in a compact configuration that would be difficult with a single lens element.
2Manufacturing precision
If more lens elements are added to improve imaging quality, then the device complexity increases, but the manufacturing cost increases
Solution Approach 1:
Multiple lens elements with different refractive powers (negative and positive) are combined in a single integrated optical lens assembly. The first lens L1 has negative refractive power while the second lens L2, third lens L3, and fourth lens L4 have positive refractive power, and the fifth lens L5 has negative refractive power. This merging of multiple functional elements into one compact structure achieves high imaging quality without proportionally increasing device complexity or manufacturing cost.
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 results in an optical lens that is both miniaturized and offers improved image quality at a low manufacturing cost, suitable for various imaging devices, such as handheld cameras and digital video cameras.
Implementation Method 1
a first lens L1 having negative refractive power, a second lens L2 having positive refractive power, a third lens L3 having positive refractive power, a fourth lens L4 having positive refractive power, and a fifth lens L5 having negative refractive power
Data Source
AI summary
An optical lens, in order from an object side to an image-forming side, includes: a first lens having negative refractive power, a second lens having positive refractive power, a third lens having positive refractive power, a fourth lens having refractive power, and a fifth lens having refractive power. The fourth lens may be positive refractive power, or the fourth lens may have a fourth object-side surface which curves toward the image-forming side. The fifth lens may be negative refractive power, and a spacing may be between the fourth lens and the fifth lens.