Imaging Lens Module With Integrated Variable Aperture Blades
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Solution Overview
Problem
Conventional optical systems in electronic devices lack design flexibility for integrating a variable aperture stop, leading to poor integration and limited functionality due to space constraints and manufacturing challenges.
Innovation Solution
An imaging lens module with a lens carrier and a variable through hole assembly featuring rotatable blades and a blade driving part, including driving magnets and coils, which allows for adjustable aperture size to accommodate various applications and improve image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a variable aperture stop is added to improve image quality and depth of field control, then image quality and functionality are improved, but device complexity and manufacturing difficulty increase due to limited space and integration challenges
Solution Approach 1:
The patent integrates the variable aperture stop directly into the lens carrier structure, merging two previously separate components (aperture stop and lens holder) into a single unified structure. This integration eliminates the need for separate mounting mechanisms and reduces overall device complexity while maintaining the variable aperture functionality for depth of field control and image quality improvement.
Solution Approach 2:
The lens carrier is designed to serve multiple functions: it holds the lens elements in position and simultaneously houses the variable aperture stop mechanism. This multi-functional design allows the same structural component to perform both mechanical support and optical control functions, reducing the total number of parts and simplifying the overall device architecture.
2Manufacturing precision
If a variable aperture stop is added to control depth of field and incident light, then image quality is improved, but manufacturing precision requirements increase due to accurate fitting in limited space
Solution Approach 1:
By combining the aperture stop mechanism with the lens carrier into a single integrated component, the patent eliminates the need for precise fitting between separate parts. The unified structure allows for standardized manufacturing processes and reduces tolerance requirements, making the device easier to manufacture while maintaining high image quality through controlled aperture adjustment.
3Adaptability or versatility
If the lens carrier structure is modified to accommodate the variable aperture stop, then integration is improved, but the structural complexity increases
Solution Approach 1:
The patent achieves improved integration by merging the aperture stop housing into the lens carrier structure itself. Rather than adding a separate complex mounting mechanism, the design incorporates the aperture control features directly into the existing lens holder, creating a streamlined integrated structure that improves adaptability without significantly increasing overall structural 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 solution enhances integration and flexibility of the variable aperture stop, enabling high-end specification electronic devices to achieve better image quality and field of view while maintaining manufacturing yield rates.
Implementation Method 1
The blade driving part includes at least one driving magnet and at least one driving coil. The at least one driving magnet and the at least one driving coil are disposed opposite to each other along a direction parallel to the optical axis.
Data Source
AI summary
An imaging lens module includes a lens element having an optical axis, a lens carrier and a variable through hole assembly. The lens carrier accommodates the lens element and sequentially includes an object-side portion, an image-side portion and a tubular portion. The object-side portion configured for light entering the imaging lens module forms a minimum opening of the lens carrier. The variable through hole assembly is disposed on the object-side portion and includes rotatable blades rotatably disposed about the optical axis and configured to form a through hole with a variable size. Moreover, the object-side portion further has a guiding structure guiding the movement of the rotatable blades and located further away from the optical axis than the minimum opening. Moreover, the object-side portion and the image-side portion form an air sleeve therebetween, and the air sleeve is located further away from the optical axis than the tubular portion.