Folded Optical Lens Module for Reduced Display Openings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of reducing the aperture diameter of the opening in electronic devices while maintaining high imaging quality, particularly in devices with a circular punch hole or notch for front cameras, to meet the requirements of high-end specifications and achieve a high screen-to-body ratio.
Innovation Solution
An optical lens module design featuring a first lens barrel, a first lens assembly, an optical folding element, and a second lens barrel with non-circular contours and angled optical axes, allowing for a folded optical path and reduced aperture diameter, which includes a reflection surface to redirect light rays and is fixed to the second lens barrel, enhancing assembly reliability and reducing the overall size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the aperture diameter of the opening is reduced to achieve high screen-to-body ratio, then the display area consistency is improved, but the imaging quality decreases
Solution Approach 1:
The patent introduces an optical folding element that folds the optical path at an angle (70-110 degrees) between the first and second optical axes. This dimensional change allows the light to travel a longer effective optical path while maintaining a compact physical footprint, thereby preserving imaging quality even with a reduced aperture opening.
Solution Approach 2:
The patent employs a nested structure where the optical folding element is integrated within the lens module assembly. The first lens assembly, optical folding element, and second lens assembly are arranged in a compact nested configuration, allowing the optical system to maintain high imaging quality without increasing the overall module size or aperture opening.
2Area of stationary object
If the optical lens module size is reduced to meet high-end specifications, then the screen-to-body ratio is improved, but the assembly complexity increases
Solution Approach 1:
The patent merges the optical folding function directly into the lens module structure by fixing at least one of the first lens barrel or the optical folding element to the second lens barrel. This integration eliminates the need for separate mounting structures and reduces assembly complexity while maintaining the compact size required for high-end specifications.
Solution Approach 2:
The patent employs asymmetric design in the optical path configuration, with the first and second optical axes intersecting at an angle of 70-110 degrees rather than being parallel or perpendicular. This asymmetric arrangement allows for compact packaging of the optical components while maintaining optimal optical performance, thereby reducing overall module size without proportionally increasing assembly complexity.
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 design facilitates a compact installation, high image quality, and maintains a high screen-to-body ratio by minimizing the optical lens module's size and thickness, thereby improving the imaging quality and design flexibility of electronic devices.
Implementation Method 1
The optical folding element has a reflection surface, such that the light ray is reflected into the second lens assembly after passing through the first lens assembly
Data Source
AI summary
The present disclosure provides an optical lens module. By assembling a first lens barrel, an optical folding element and a second lens barrel, the optical lens module can be miniaturized, image quality of the optical lens module in a compact assembly space can be increased, and the size of a light passage opening of a display panel module can be reduced so as to increase consistency of a display area.