Light Guide Plate Radar Cover for Millimeter-Wave Concealment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Radar devices using millimeter waves are often hidden to maintain design quality, but existing solutions degrade radar performance due to the use of additional covers that obstruct electromagnetic waves.
Innovation Solution
A radar device design incorporating a light guide plate that emits light to conceal the radar, reflecting millimeter waves and minimizing leakage, while maintaining radar performance through strategic placement and thickness of the light guide plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a cover is installed to conceal the radar device, then visual quality is improved, but radar performance deteriorates due to electromagnetic wave obstruction
Solution Approach 1:
The patent applies a light-shielding film with specific optical properties to the cover. The film appears opaque or translucent to visible light, providing visual concealment, while maintaining electromagnetic wave transmission properties. This allows the cover to change its optical appearance without affecting radar performance.
Solution Approach 2:
The patent changes the thickness parameter of the light guide plate to optimize both light emission intensity and electromagnetic wave transmission. By carefully controlling the thickness within a specific range, the cover achieves sufficient light emission for visual quality while maintaining adequate millimeter wave transmission for radar performance.
2Shape
If additional covers are installed to conceal the radar, then visual quality is improved, but device complexity increases
Solution Approach 1:
The patent merges the light guide plate with the cover structure, eliminating the need for separate concealment components. The light guide plate serves dual purposes: it provides structural coverage and emits light for visual quality, thereby simplifying the overall device structure while achieving the concealment effect.
Solution Approach 2:
The light guide plate performs multiple functions simultaneously: it acts as a cover for structural protection, as a light emission element for visual quality, and as a millimeter wave transmission medium for radar performance. This multi-functionality reduces the number of separate components needed.
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 solution enhances visual quality by concealing the radar device as a lighting element, reduces the need for additional covers, and maintains radar performance by minimizing electromagnetic wave interference.
Implementation Method 1
a light guide plate which hides the radar and emits light by light from a light emitter
Implementation Method 2
reflecting millimeter waves and minimizing leakage
Data Source
AI summary
A radar device includes a radar transmitting and receiving millimeter-wave electromagnetic waves, a storage storing the radar and including an opening portion through which the electromagnetic waves radiated from the radar pass, a light guide plate being in contact with a periphery of the opening portion of the storage and covering an entire of the opening portion, and a light emitter causing light to be incident on a light entrance surface being a surface on which light is incident among lateral surfaces of the light guide plate.