Optical Module Driving Assembly with Separation Medium
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical modules in projectors fail to achieve high resolution in compact sizes due to limitations in the light valve's ability to generate sufficient electromagnetic force for image enhancement.
Innovation Solution
An optical module with a driving assembly that includes a coil and a magnetic structure with a separation medium, increasing the magnetic flux density and Lorentz force, allowing the optical module to swing and enhance image resolution by moving the image light beam quickly within one frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a conventional driving assembly without separation medium is used, then the structure is simple, but the magnetic flux density and Lorentz force are insufficient to achieve high resolution in compact projectors
Solution Approach 1:
A separation medium is introduced as an intermediary component between the magnet element and the coil. This separation medium serves as a mediator that optimizes the magnetic flux distribution, allowing the magnetic field to penetrate more effectively through the coil winding, thereby increasing the Lorentz force without requiring a more complex overall magnetic structure
Solution Approach 2:
The separation medium changes the magnetic parameter distribution in the gap between the magnet element and coil. By introducing this medium with specific magnetic permeability properties, the magnetic flux density is enhanced in critical regions, which directly increases the Lorentz force generated by the driving assembly
2Speed
If the magnetic structure is simplified without separation medium, then the device complexity is low, but the frequency of reciprocating deflection is insufficient for high resolution image synthesis
Solution Approach 1:
The separation medium acts as a mediator that optimizes the magnetic coupling between the magnet element and coil, enabling faster magnetic response and thereby increasing the frequency of reciprocating deflection of the optical module
Solution Approach 2:
By changing the magnetic parameter distribution through the separation medium, the magnetic field strength and response time are optimized, which directly affects the frequency of reciprocating deflection and enables high-resolution image synthesis
3Manufacturing precision
If a driving assembly with separation medium is used, then the Lorentz force and deflection frequency are increased, but the manufacturing complexity increases
Solution Approach 1:
The separation medium serves as a mediator that not only improves the magnetic flux density and Lorentz force but also provides a convenient reference surface for positioning and assembling the coil and magnet element, thereby facilitating manufacturing precision
Solution Approach 2:
The separation medium enables precise control of the gap distance between the magnet element and coil, which is critical for achieving the desired Lorentz force and deflection frequency while maintaining manufacturability
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 increased Lorentz force enables the optical module to achieve higher resolutions, such as 2K or 4K, by effectively increasing the frequency of reciprocating deflection and improving image synthesis.
Implementation Method 1
a magnetic force generated by the at least one driving assembly
Implementation Method 2
The increased Lorentz force enables the optical module to achieve higher resolutions
Implementation Method 3
The magnetic structure includes a magnetic permeable plate, a separation medium, and a magnet element
Data Source
AI summary
An optical module and a projector including the optical module are provided. The optical module includes a base, a first frame body disposed in the base, an optical element disposed in the first frame body, and at least one driving assembly disposed between the base and the first frame body. The first frame body is configured to swing relative to the base through a magnetic force generated by the at least one driving assembly, and each of the at least one driving assembly includes a coil and a magnetic structure that is separated from the coil and includes a magnetic permeable plate, a separation medium, and a magnet element. The separation medium is located on one side of the magnetic permeable plate facing the coil. The magnet element is disposed on the side of the magnetic permeable plate facing the coil and is separated by the separation medium.