Folded Camera Module Layout for Flare Suppression in Optical Zoom
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Solution Overview
Problem
Existing camera modules face challenges in managing optical path interference and flare issues, which affect image quality, particularly in high-resolution and high-magnification optical zoom functions.
Innovation Solution
Incorporation of a reflector between lenses to redirect light and a blocking wall to manage optical path interference, along with a lens holder and concealing portions to minimize internal component visibility and maintain module thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a reflector is added to redirect light for high-magnification optical zoom, then optical zoom capability is improved, but device complexity increases
Solution Approach 1:
The reflector is integrated with the lens holder to form a unified structure, merging two previously separate components into one. This reduces the overall number of parts while maintaining the optical zoom functionality, thereby improving adaptability without proportionally increasing device complexity.
Solution Approach 2:
The lens holder is designed to serve multiple functions: it holds the lens elements and simultaneously supports the reflector structure. This multi-functionality allows the same component to fulfill both mechanical support and optical redirection roles, reducing overall device complexity while enabling high-magnification optical zoom.
2Shape
If internal components are concealed to improve appearance, then aesthetic quality is improved, but manufacturing complexity increases
Solution Approach 1:
The concealing portion is merged with the lens holder structure, creating a single integrated component that provides both mechanical support and aesthetic coverage. This integration eliminates the need for separate concealing parts, reducing manufacturing steps while achieving the desired aesthetic quality.
3Length of stationary object
If the lens holder overlaps the housing peripheral portion to maintain thickness, then compactness is improved, but assembly complexity increases
Solution Approach 1:
The design utilizes overlapping in the planar dimension (lens holder overlapping the housing peripheral portion) to achieve thickness reduction in the vertical dimension. By distributing components across different planar layers, the overall module thickness is minimized while maintaining structural integrity.
4Reliability
If a blocking wall is added to prevent optical path interference, then image quality is improved, but device complexity increases
Solution Approach 1:
The blocking wall is integrated into the reflector structure, combining the light-blocking function with the existing optical redirection component. This integration adds the necessary image quality protection without introducing a completely separate part, thereby minimizing the increase in device 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
Enhances image quality by reducing flare and maintaining compact module size while supporting high-resolution and high-magnification optical zoom capabilities.
Implementation Method 1
a reflector disposed between the first lens and the second lens and configured to reflect, to the second lens, light passing through the first lens
Data Source
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AI summary
This camera module may comprise: a first lens; a second lens; a lens holder configured to support the first lens; a reflector disposed between the first lens and the second lens and configured to reflect, to the second lens, light passing through the first lens; and a blocking wall configured to block an optical path between the reflector and the lens holder.