Optical Path Control Device Actuator Segmentation
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Solution Overview
Problem
Existing optical path control devices face challenges in efficiently shifting the optical axis and maintaining balance between actuators, leading to increased power consumption and complex adjustment control when simultaneously driving multiple actuators to incline an optical unit.
Innovation Solution
An optical path control device with a swing unit supported by first and second swing units, actuated by first and second actuators, where a drive signal is applied to maintain one actuator at a preset current value for inclination while setting another actuator to zero, simplifying control and reducing power consumption by independent axis displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If two actuators are simultaneously driven to incline the optical unit in a predetermined direction, then the optical path can be shifted to achieve higher resolution, but power consumption increases and adjustment control becomes complicated
Solution Approach 1:
The patent divides the optical unit into two independently controllable swing units (first swing unit and second swing unit), each controlled by a separate actuator. This segmentation allows one actuator to be driven while the other remains stationary (current value set to 0), eliminating the need for simultaneous dual-actuator operation and thereby reducing power consumption while maintaining the ability to shift the optical path for high-resolution imaging
2Manufacturing precision
If two actuators are simultaneously driven to incline the optical unit, then the optical path can be shifted, but adjustment control for the actuators becomes complicated
Solution Approach 1:
By segmenting the control into two independent axes with separate actuators, the patent simplifies the control logic. The drive unit can independently control each actuator without needing to coordinate both simultaneously, reducing adjustment complexity while maintaining precise optical path positioning capability
Solution Approach 2:
The patent implements dynamic control where the drive unit can selectively activate only the necessary actuator based on the required optical path shift direction. This dynamic approach allows the system to adapt between different operational states (one actuator active, other inactive) rather than requiring continuous simultaneous operation, thereby simplifying control
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 solution reduces power consumption and simplifies control by allowing independent actuation of each axis, enabling precise optical path shifting with reduced complexity in adjustment, thus enhancing the optical path control mechanism's efficiency.
Implementation Method 1
a first actuator that swings the swing unit centering on a first swing axis, a second actuator that swings the swing unit centering on a second swing axis intersecting the first swing axis
Data Source
AI summary
An optical path control device includes a swing unit including an optical unit on which light is made incident, a first swing unit that supports the optical unit, and a second swing unit that swingably supports the first swing unit, a first actuator that swings the swing unit centering on a first swing axis, a second actuator that swings the swing unit centering on a second swing axis that intersects the first swing axis, and a drive unit that applies a drive signal of a current value to the first actuator and the second actuator.