Laser Beam Deflection for Resonant Wireless Charging Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing laser wireless charging systems have a limited range for tracking the laser receiving apparatus due to stability limitations of the resonant cavity and reflection range of the reflecting mirrors, leading to incomplete energy transmission when the receiving apparatus moves out of the field of view.
Innovation Solution
A laser emitting apparatus with a detection and control module, a pump source, a first reflecting mirror group, and a beam deflection module is used to adjust the emission angle of the laser light, allowing it to scan and track the receiving apparatus over a larger area by detecting light intensities and adjusting the beam deflection module to ensure resonance is maintained, thus expanding the emission range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a resonant cavity with reflecting mirrors is used to emit laser light, then the laser light can be generated through stimulated emission, but the emission range is limited due to stability limitations of the resonance and reflection range of the mirrors
Solution Approach 1:
The patent extracts the beam deflection function from the traditional resonant cavity structure by introducing an independent beam deflection module. This module can deflect the laser beam without requiring the entire resonant cavity to move or adjust, thereby expanding the emission range while maintaining resonance stability. The beam deflection module operates independently from the resonant cavity, allowing large-angle beam steering without compromising the stability of the laser generation process.
Solution Approach 2:
The patent introduces a dynamic beam deflection module that can actively adjust the emission angle of the laser beam in real-time. This dynamic adjustment capability allows the laser emitting apparatus to track and follow the movement of the laser receiving apparatus, effectively expanding the operational range. The system transitions from a static resonant cavity to a dynamic system where the beam direction can be continuously adjusted while maintaining resonance conditions.
2Adaptability or versatility
If the laser emitting apparatus uses a fixed emission direction, then the resonant cavity remains stable, but the laser receiving apparatus cannot be tracked when it moves
Solution Approach 1:
The patent introduces a beam deflection module as an intermediary component between the resonant cavity and the external environment. This intermediary allows the laser beam to be redirected to track the moving receiving apparatus without requiring the resonant cavity itself to move or change its configuration. The beam deflection module acts as a mediator that decouples the tracking function from the resonance generation function, enabling both tracking capability and resonance stability to coexist.
Solution Approach 2:
The system transitions from a fixed emission direction to a dynamic beam steering capability through the beam deflection module. This module can adjust the emission angle in real-time to follow the movement of the laser receiving apparatus, providing adaptability and tracking capability while the resonant cavity maintains its stable configuration for consistent laser generation.
3Ease of operation
If the emission angle is adjusted by moving the reflecting mirrors, then the beam direction can be changed, but the resonance stability is compromised due to the limited reflection range of the mirrors
Solution Approach 1:
The patent separates the beam direction adjustment function from the reflecting mirrors by introducing a dedicated beam deflection module. This module handles all beam steering operations, allowing the reflecting mirrors to remain in their optimal positions for maintaining resonance stability. The beam deflection module can adjust the emission angle over a wide range without affecting the resonance conditions, as it operates independently from the mirror-based resonant cavity.
Solution Approach 2:
The patent replaces the mechanical adjustment of reflecting mirrors with an optical beam deflection mechanism. Instead of physically moving the mirrors to change beam direction, the system uses the beam deflection module to steer the laser beam optically. This substitution eliminates the need to compromise resonance stability for beam direction adjustment, as the mirrors remain stationary while the beam is deflected by the dedicated module.
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 enables the laser emitting apparatus to increase its emission range and effectively track the laser receiving apparatus over a broader area, ensuring consistent energy transmission even when the receiving apparatus moves beyond the initial field of view.
Implementation Method 1
The gain medium is pumped by the pump source to emit fluorescence
Implementation Method 2
stimulated by resonance, between the first reflecting mirror group and a laser receiving apparatus, of the fluorescence to emit laser light
Implementation Method 3
The beam deflection module is configured to emit the fluorescence or the laser light emitted by the gain medium, and emit the fluorescence or the laser light reflected by the laser receiving apparatus into the gain medium
Data Source
AI summary
A laser emitting apparatus includes a detection and control system, a pump source, a first reflecting mirror group, a gain medium, and a beam deflection system on an optical path. The gain medium is pumped by the pump source to emit fluorescence, and is stimulated by resonance, between the first reflecting mirror group and a laser receiving apparatus, of the fluorescence to emit laser light. The beam deflection system emits the fluorescence or the laser light emitted by the gain medium, and emits the fluorescence or the laser light reflected by the laser receiving apparatus into the gain medium. The detection and control system adjusts the beam deflection system to preset emission angles, detects light intensities of the fluorescence or the laser light, and a light spot position of the laser light on the detection and control system, and adjusts the emission angle based on the light spot position.