Reflective Camera Module Layout for Contamination-Controlled Imaging
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Solution Overview
Problem
Existing camera modules in electronic devices face challenges in maintaining clear image capture due to issues such as hand tremor and the need for effective autofocus and optical image stabilization, particularly in devices with electromagnetic components.
Innovation Solution
The camera module incorporates a reflective member with an incident and exit surface, a bracket, a lens assembly, an image sensor, and a foreign substance trap, along with an adhesive member to manage light path and trap foreign substances, enhancing image stabilization and autofocus functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reflective member is added to manage light path for autofocus and optical image stabilization, then image clarity and stability are improved, but device complexity increases
Solution Approach 1:
The reflective member is integrated into the existing camera module structure, combining light path management functions with the autofocus and optical image stabilization mechanisms. This merging approach allows multiple functions to be achieved within a unified structure, improving reliability without proportionally increasing device complexity.
Solution Approach 2:
The reflective member serves multiple functions simultaneously: it manages the light path for autofocus operation, supports optical image stabilization, and maintains image clarity. This multi-functionality allows a single component to address multiple technical requirements, resolving the contradiction between improved reliability and increased complexity.
2Reliability
If a foreign substance trap is introduced to prevent contamination, then image quality is improved, but device complexity increases
Solution Approach 1:
The foreign substance trap is designed as a separate, extractable component that can be independently installed and maintained. This extraction approach allows the contamination prevention function to be added without permanently complicating the overall device structure, as the trap can be removed and replaced without affecting other camera module components.
Solution Approach 2:
The foreign substance trap acts as an intermediary element positioned between the reflective member and the image sensor. This mediator component prevents direct contact between foreign substances and critical optical components, protecting image quality while maintaining a clear functional separation that minimizes overall 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
The solution provides improved image clarity and stability by effectively managing light path and foreign substances, thereby enhancing the autofocus and optical image stabilization capabilities of the camera module.
Implementation Method 1
a reflective member comprising a reflective surface including an incident surface and an exit surface configured to pass light introduced into the incident surface
Implementation Method 2
an adhesive member comprising an adhesive material disposed in the foreign substance trap
Data Source
AI summary
A camera module may include a reflective member including an incident surface and an exit surface through which light introduced into the incident surface passes, a bracket where the reflective member is disposed, a camera housing including a support where at least a portion of the bracket is disposed, and a side wall perpendicular to the support portion, a first carrier disposed in the camera housing and at least partially facing the bracket, a lens assembly including at least one lens facing the incident surface of the reflective member, the lens assembly being disposed in the first carrier such that the lens is spaced apart from the reflective member in an optical axis direction of the lens, a cover including an opening configured to accommodate a portion of the lens assembly, the cover being coupled to the camera housing, an image sensor disposed on the camera housing, and configured to receive light that has passed through the exit surface of the reflective member, a foreign substance trap, at least a portion of which is disposed between the image sensor and the lens assembly when the cover member is viewed from above, and an adhesive disposed in the foreign substance trapping portion.