Six-Lens Zoom Layout for Compact High-Resolution Imaging
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Solution Overview
Problem
Existing imaging lenses for electronic devices face challenges in achieving high resolution and zoom ratio within a compact volume, typically requiring a large total track length (TTL) due to lens movement on the optical axis.
Innovation Solution
An imaging lens design with a first and second lens group, each comprising multiple lenses with specific refracting powers, allowing for switching between lens groups to achieve zooming without significant physical movement, thereby maintaining a compact form factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If lens movement on the optical axis is used to achieve zoom functionality, then zoom ratio is improved, but total track length increases
Solution Approach 1:
The patent transitions from one-dimensional optical axis movement to two-dimensional lens group switching. By providing multiple lens groups (first lens group with positive refracting power and second lens group with negative refracting power) that can be switched between different positions, the system achieves zoom functionality without requiring lenses to move along the optical axis, thereby reducing total track length while maintaining adaptability
2Measurement precision
If lens movement on the optical axis is used to achieve high resolution, then image quality is improved, but device volume increases
Solution Approach 1:
The patent employs lens group switching between different spatial configurations rather than continuous movement along the optical axis. The first lens group (positive refracting power) and second lens group (negative refracting power) are switched to different positions to achieve high resolution imaging, eliminating the need for large device volume while maintaining measurement precision
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 lens design achieves high resolution and zoom ratio within a compact volume, with minimal distortion and field curvature, while reducing the total track length.
Implementation Method 1
The first lens group has positive refracting power and includes a first lens, a second lens and a third lens having refracting power. The second lens group has negative refracting power and includes a fourth lens, a fifth lens and a sixth lens having refracting power.
Data Source
AI summary
An imaging lens includes a first lens group and a second lens group. The first lens group has positive refracting power and includes a first lens, a second lens and a third lens having refracting power. The second lens group has negative refracting power and includes a fourth lens, a fifth lens and a sixth lens having refracting power. The first lens to the sixth lens are disposed in sequence from an object side to an image side of the imaging lens. When a light beam enters the imaging lens from the object side of the imaging lens and reaches an image plane, the light beam passes through a total of six lenses with refracting power. The first lens group may be switched to a third lens group to achieve high resolution and zoom ratio within a compact volume.