Interchangeable Zoom Lens Actuator with Light Shielding
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Solution Overview
Problem
The challenge is to create a compact camera module for portable electronic devices that is smaller, lighter, and cost-effective while maintaining optical quality, as existing designs face difficulties in reducing manufacturing tolerances and preventing light leakage.
Innovation Solution
The solution involves a compact imaging module with interchangeable lens assemblies of different focal lengths, adjustable focus, and light shields to prevent light leakage, utilizing electromagnetic actuators and moveable platforms to switch between lens assemblies and adjust focus, allowing for zoom and focus control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If compact camera module size is reduced, then portability is improved, but manufacturing tolerances become more difficult to maintain
Solution Approach 1:
The camera module is divided into separate functional components: a lens assembly module that can be detached and replaced, and a body module. This segmentation allows each component to be manufactured and tested independently, reducing the cumulative tolerance issues that would affect an integrated compact design.
Solution Approach 2:
The lens assembly is designed to be moveable relative to the image sensor through an actuator mechanism, enabling dynamic adjustment of focus and zoom. This dynamic capability allows the system to maintain optical quality across different focal lengths without requiring extremely tight manufacturing tolerances for fixed lens positions.
2Adaptability or versatility
If interchangeable lens assemblies are used, then zoom capability is improved, but device complexity increases
Solution Approach 1:
A single lens assembly design incorporates multiple focal lengths through internal zoom mechanisms, allowing one interchangeable unit to provide multiple zoom capabilities. The actuator system serves multiple functions by controlling both lens assembly replacement and internal lens element movement for focus adjustment.
Solution Approach 2:
A moveable platform acts as an intermediary mechanism that facilitates the switching between different lens assemblies. This platform provides a standardized interface and mounting mechanism, simplifying the complexity of lens replacement while maintaining versatility.
3Object-affected harmful factors
If light shields are added to prevent light leakage, then optical quality is improved, but manufacturing cost increases
Solution Approach 1:
The light shielding function is merged into the existing structural components of the lens assembly and body interface. The moveable platform and housing structures incorporate light-blocking features as integral parts rather than separate components, preventing light leakage without adding significant manufacturing complexity or 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 enables precise control over zoom and focus, reduces manufacturing costs, and minimizes light leakage, making it suitable for slimmer and lighter portable devices.
Implementation Method 1
A selected lens assembly may be moved to a selected position in response to an electromagnetic force
Data Source
AI summary
The subject matter disclosed herein relates to an optical module that includes interchangeable lenses to adjust a zoom level of the optical module.