Camera Module Single Lens 3D Imaging Dynamics
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Solution Overview
Problem
Conventional 3D image processing systems in mobile terminals require two cameras, limiting their ability to generate 3D images when rotated and increasing costs, and face challenges in centering accuracy during assembly due to slanted optical axes.
Innovation Solution
A camera module using a single camera with a bobbin and driving part to move perpendicular to the optical axis, generating 3D images by synthesizing displacement images, and a lens barrel with a guide lug for improved alignment and rotation capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two cameras are used to build a stereo system, then 3D image generation capability is achieved, but device complexity and cost increase
Solution Approach 1:
The patent employs a dynamic mechanism where a single camera module can change its optical axis orientation. The camera module includes a rotation mechanism that allows it to rotate between a first direction (first optical axis) and a second direction (second optical axis) perpendicular to the first. This dynamic repositioning enables one camera to functionally replace what would traditionally require two fixed cameras, resolving the contradiction between 3D capability and device complexity.
2Adaptability or versatility
If the mobile terminal is rotated to 90 degrees, then width direction orientation changes, but 3D image generation fails
Solution Approach 1:
The camera module incorporates a rotation mechanism that dynamically adjusts the optical axis direction based on device orientation. When the mobile terminal is rotated, the camera module can rotate to maintain proper optical alignment, ensuring continuous 3D image generation capability regardless of device orientation. This dynamic adaptation resolves the contradiction between orientation flexibility and 3D generation reliability.
Solution Approach 2:
The single camera module is designed to perform multiple functions: it can operate in a first direction for normal 3D imaging and rotate to a second direction to accommodate device rotation. This multi-functionality allows the same hardware to maintain 3D generation capability across different device orientations, resolving the contradiction between adaptability and reliability.
3Ease of manufacture
If the holder member is slanted during assembly, then alignment is simplified, but optical axis accuracy deteriorates
Solution Approach 1:
The patent introduces a guide lug structure that performs preliminary alignment action during assembly. The guide lug on the holder member fits into a corresponding guide groove on the lens barrel, establishing precise optical axis alignment before the actual assembly is completed. This preliminary alignment action ensures manufacturing precision is maintained even though the assembly process remains simple, resolving the contradiction between ease of manufacture and manufacturing precision.
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
Enables 3D image generation with a single camera module regardless of device orientation and enhances centering accuracy through precise alignment and rotation of the lens barrel, reducing assembly complexity and costs.
Implementation Method 1
a controller moving the bobbin to a first direction perpendicular to an optical axis by applying a predetermined first current to the driving part, and moving the bobbin to a second direction perpendicular to the optical axis by applying a predetermined second current to the driving part
Data Source
AI summary
A camera module is disclosed. A device according to an embodiment of the present invention can move a bobbin in a first direction perpendicular to an optical axis by applying a first predetermined current to a driving unit, and move the bobbin in as second direction perpendicular to the optical axis by applying a second predetermined second current to the driving unit.