Stacked Micro LED Vehicle Lamp Heat and Light Management
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Solution Overview
Problem
Vehicle lamps using micro LED devices often fail to provide a sufficient light amount due to limited output power, and existing solutions do not effectively address light loss and heat management.
Innovation Solution
A lamp design featuring a light generation unit with stacked array modules of micro LED devices, each arranged in different patterns and powered by separate wires, combined with a cooling system and optical components like lenses and reflectors to enhance light output and manage heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If micro LED devices are used as light sources, then energy consumption is reduced and device lifetime is extended, but light output amount becomes insufficient
Solution Approach 1:
The light generation unit is divided into multiple array modules, each containing multiple micro LED devices arranged in specific patterns. This segmentation allows independent optimization of each module's light output while maintaining overall energy efficiency of micro LEDs
Solution Approach 2:
Multiple array modules are combined in a stacked configuration to aggregate their light output. The stacking arrangement merges the limited output of individual micro LED devices to achieve sufficient total light amount while preserving the energy-saving benefits
2Illumination intensity
If multiple array modules are stacked to increase light output, then illumination intensity is improved, but heat accumulation increases
Solution Approach 1:
A cooling device is introduced as an intermediary between the stacked array modules to manage heat. This cooling intermediary dissipates the heat generated by multiple micro LED devices, enabling the stacked configuration to maintain high light output without excessive heat accumulation
3Illumination intensity
If micro LED devices are arranged in dense patterns to maximize light output, then illumination intensity is improved, but light loss increases due to device interference
Solution Approach 1:
Different array modules employ different micro LED device patterns (e.g., first pattern, second pattern, third pattern) optimized for their specific positions in the stack. This local quality variation reduces light interference between adjacent devices while maximizing overall light output, minimizing light loss
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 design significantly improves light output by minimizing loss and effectively dissipating heat, resulting in a more efficient and effective vehicle lighting system.
Implementation Method 1
a plurality of micro Light Emitting Diode (LED) devices
Implementation Method 2
micro Light Emitting Diode (LED) devices that are spaced apart from each other
Implementation Method 3
a phosphor layer configured to change a wavelength of a first light generated by the first group of micro LED devices
Implementation Method 4
a lens configured to change an optical path of light generated by the light generation unit
Implementation Method 5
effectively dissipating heat
Implementation Method 6
cooling system and optical components like lenses and reflectors to enhance light output and manage heat
Data Source
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AI summary
A lamp (100) for a vehicle (10) includes a light generation (160) unit configured to generate light, and a lens (320) configured to change an optical path of light generated by the light generation unit (160). The light generation unit (160) includes a plurality of array modules (200) arranged in a stacked configuration in which each array module (200) includes a plurality of micro Light Emitting Diode (LED) devices (920).