Compact Lens Control Apparatus for Autofocus and Vibration Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vibration compensation devices in cameras are not suitable for cellular phones due to space constraints, necessitating a compact lens control apparatus for autofocus and motion correction.
Innovation Solution
A lens control apparatus with a casing, a movable and pivotable lens holder, an autofocus actuator, and lateral actuators that respond to control signals for precise focus and motion adjustments, allowing the lens holder to move along and pivot around the optical axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional vibration compensation devices are used, then motion correction function is achieved, but device size becomes too large for cellular phones
Solution Approach 1:
The patent combines autofocus and motion correction functions into a single integrated lens control apparatus. The lens holder simultaneously supports both autofocus actuation (along optical axis) and motion correction pivoting (perpendicular to optical axis), merging two previously separate functions into one compact unit suitable for cellular phones
Solution Approach 2:
The lens holder is designed as a multi-functional component that performs both autofocus (moving lens along optical axis) and vibration compensation (pivoting lens perpendicular to optical axis). This universal design allows a single apparatus to replace multiple separate devices, reducing overall size for mobile phone integration
2Reliability
If lens holder is made pivotable for motion correction, then vibration compensation is achieved, but device complexity increases
Solution Approach 1:
The patent merges autofocus and motion correction mechanisms into a single integrated lens holder assembly. By combining both functions in one pivotable holder rather than using separate mechanisms, the design reduces overall system complexity while maintaining both autofocus and vibration compensation capabilities
Data Source
AI summary
An autofocus and motion control apparatus is provided. According to one embodiment, the autofocus and motion control apparatus comprises a lens control apparatus having an imaging lens unit and a lens holder and a plurality of actuators configured to move the lens holder in predetermined directions within the lens control apparatus. Embodiments of the lens control apparatus include a casing; an imaging lens unit and lens holder movable within the casing along an optical axis, the imaging lens unit and lens holder further pivotable within the casing, an autofocus actuator is configured to move the imaging lens unit and lens holder within the casing along the optical axis; a first lateral actuator is configured to provide a force to pivot the lens holder in a first direction; and a second lateral actuator is configured to provide a force to pivot the lens holder in a second direction.