Multi-Laser Thermal Modeling with Synchronized Operating Windows
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Solution Overview
Problem
Conventional laser display systems face difficulties in accurately modeling thermal effects, particularly in multi-laser systems with asynchronous timing intervals, leading to inaccuracies in color and intensity displays and premature hardware wear due to incorrect current driving.
Innovation Solution
A laser display system that synchronizes temperature values across multiple laser devices using a summing module and control logic, accounting for self-heating and crosstalk effects by populating queues with energy samples over common windows, enabling accurate system temperature modeling and optimal current determination for each laser device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple laser devices with asynchronous timing intervals are used, then display versatility and functionality are improved, but thermal modeling accuracy deteriorates
Solution Approach 1:
The patent segments the thermal modeling process into individual contributions from each laser device. Each laser's thermal effect is modeled separately using its own timing interval and energy samples, then the results are combined. This allows accurate thermal modeling for each laser device even when they operate with asynchronous timing intervals, resolving the contradiction between display versatility and thermal modeling accuracy.
2Device complexity
If conventional thermal modeling is used without synchronization, then device complexity is reduced, but display quality deteriorates over time
Solution Approach 1:
The patent introduces a synchronization mechanism as an intermediary between asynchronous laser devices and the thermal modeling process. This synchronizer aligns timing intervals and coordinates energy sample collection without significantly increasing overall system complexity. By adding this intermediary layer, the system maintains accurate thermal models that prevent display quality degradation over time.
3Measurement precision
If accurate thermal modeling is implemented for multi-laser systems, then display precision is improved, but device complexity increases
Solution Approach 1:
The patent merges the thermal modeling operations for multiple laser devices into a unified process. By combining energy samples from different lasers and applying a single thermal model that accounts for cumulative heating effects, the system achieves accurate display precision without proportionally increasing complexity. The merging approach allows the system to handle multiple lasers efficiently through consolidated processing.
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 approach improves thermal modeling accuracy, ensuring precise current control for laser devices, reducing inaccuracies and hardware degradation, and maintaining display quality over time.
Implementation Method 1
modeling thermal effects for a set of laser devices based on a combination of self-heating effects and crosstalk between the set of laser devices
Implementation Method 2
modeling thermal effects for a set of laser devices based on a combination of self-heating effects and crosstalk between the set of laser devices
Data Source
AI summary
The present disclosure relates to systems, methods, and computer readable media for modeling thermal effects within a multi-laser device. For example, systems described herein may include a plurality of laser devices that output energy streams having corresponding operating windows. One or more systems described herein may include a set of accumulators for tracking quantities of energy samples within operating windows and populating a queue representative of the tracked quantities. One or more systems described herein may additionally include filters and a summing module for determining temperature values for operating windows and synchronizing the temperature values with one another to determine an accurate system temperature for the multi-laser device. The features described herein facilitate synchronization of data for corresponding operating windows to provide an accurate determination of system temperature based on a combination of self-heating and crosstalk effects between multiple laser devices.