Optical Actuator Connecting Structure for Torque Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional optical actuators in projection systems are prone to deformation due to torque, which affects image quality by limiting the rotational axis of the carrier and reflective mirror, leading to instability.
Innovation Solution
An optical actuator with a connecting structure featuring a first connecting portion at the central region and two second connecting portions on opposite sides, connecting the base to the carrier, allowing rotation along an axial line perpendicular to the connecting structure, thereby supporting the carrier and preventing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the carrier and reflective mirror are rotated along the axis X using conventional axles, then the optical actuator can achieve high-frequency rotation for increasing pixels and image smoothness, but the generated torque causes the axles to be easily deformed, affecting image quality
Solution Approach 1:
The connecting structure is divided into multiple portions: a first connecting portion at the central region and two second connecting portions at opposite sides. This segmentation distributes the torque load across multiple connection points rather than concentrating it on a single axle, preventing deformation while maintaining rotational capability for high-frequency operation.
Solution Approach 2:
The invention transitions from a single-axis rotation system to a multi-point connection system with the axial line substantially perpendicular to the connecting structure. This dimensional change allows the carrier to rotate along an axial line that is perpendicular to the plane of the connecting structure, distributing mechanical stress more effectively and preventing axle deformation.
2Ease of operation
If the axles are positioned overlapped or perpendicular to the axis X, then the reflective mirror can be rotated back and forth, but the generated torque makes the axles easily deformed, which affects image quality
Solution Approach 1:
The connecting structure is segmented into a first connecting portion at the central region and two second connecting portions at opposite sides, distributing the rotational load across multiple points. This segmentation maintains ease of rotational operation while preventing deformation that would compromise image quality reliability.
Solution Approach 2:
The connecting structure functions as a composite mechanical system combining multiple connecting portions that work together to provide both rotational freedom and structural stability. This composite approach ensures reliable image quality by preventing deformation while maintaining operational ease.
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 enhances the stability of image quality by withstanding torque and maintaining the structural integrity of the optical actuator, improving pixel density and image smoothness.
Implementation Method 1
an actuating component, which is disposed on the base and drives the carrier rotating along an axial line, which is substantially perpendicular to the connecting structure
Implementation Method 2
The reflective mirror 13 can be rotated back and forth along the axis X. According to the axles 14, the reflective mirror 13 can swing in a high-frequency within an angle θ so that the image can be transmitted to different positions through the reflective mirror 13. Due to the persistence of vision, the images can be overlapped
Data Source
AI summary
An optical actuator includes a base, a carrier, a reflecting optical element, a connecting structure and an actuating component. The reflecting optical element is disposed at a first side of the carrier. The connecting structure has a first connecting portion located at the central region thereof and two second connecting portions located at two opposite sides thereof. The connecting portions connect the base to the second side of the carrier. The actuating component is disposed on the base and drives the carrier rotating along an axial line. The axial line is substantially perpendicular to the connecting structure. A projection system including the optical actuator is also disclosed.