Planar Corner Reflector Array for Vehicle Radar and Lighting

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Solution Overview

Problem

Existing radar reflectors for vehicles compromise aesthetic and aerodynamic design while providing stable radar measurement, necessitating a solution that maintains designability while ensuring efficient radar wave reflection.

Innovation Solution

A radio wave reflecting apparatus comprising a reflector array of unit corner reflectors with integrated LED light sources, disposed in a close-packed planar configuration, allowing the apparatus to function as both a radar reflector and a light-emitting device, enhancing radar wave reflection without altering the vehicle's design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a reflector is newly provided on the vehicle to enable radar measurement, then radar measurement capability is improved, but the aesthetic appearance and aerodynamic performance of the vehicle are impaired

Engineering Contradiction:
Improveradar measurement capabilityVSAvoidaesthetic appearance and aerodynamic performance
Core Design Contradiction:
Measurement precisionVSShape

Solution Approach 1:

The patent combines the radar reflector function with the vehicle's existing body structure or aerodynamic components. The reflector is integrated into the vehicle body in such a way that it maintains the original aesthetic appearance and aerodynamic performance while providing stable radar wave reflection capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent designs the reflector structure to serve multiple functions: it provides radar wave reflection capability while simultaneously maintaining aerodynamic performance and aesthetic appearance. The reflector is configured to work as part of the vehicle's overall design rather than as a separate additive component.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If a traditional reflector structure is used to ensure stable radar reflection, then radar measurement stability is improved, but the design flexibility and aesthetic appearance of the vehicle are compromised

Engineering Contradiction:
Improveradar reflection stabilityVSAvoiddesign flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent divides the reflector into multiple unit corner reflectors arranged in an array. Each unit corner reflector is a small modular element that can be individually configured and positioned. This segmentation allows the reflector system to be integrated into various vehicle designs while maintaining stable radar reflection through the collective effect of multiple units.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from traditional three-dimensional protruding reflectors to a planar arrangement of unit corner reflectors. The unit corner reflectors are disposed in a plane, allowing the reflector system to be integrated into the vehicle's surface without significant protrusions, thereby maintaining aerodynamic performance and aesthetic appearance while providing stable radar reflection.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 apparatus provides stable and efficient radar wave reflection, improving radar measurement accuracy while maintaining the vehicle's design integrity, by utilizing the reflector array and light sources to enhance reflection performance without protrusions or additional components.

Implementation Method 1

a reflector that is mounted on a vehicle and reflects radar waves... efficiently reflect radar waves transmitted from other vehicles or the like toward transmission sources

Methodology Applied
Scientific EffectRadar wave reflection: Reflection

Implementation Method 2

the light source may be a light-emitting diode (LED) light source

Methodology Applied
Scientific EffectLight emission from LED: Light Emitting Diode

Data Source

PatentUS20240186715A1Radio wave reflecting apparatus and mobile object
Publication Date: 2024.06.06 SONY GROUP CORP
  • US20240186715A1 patent drawing
  • US20240186715A1 patent drawing
  • US20240186715A1 patent drawing

AI summary

A radio wave reflecting apparatus according to one embodiment of the present technology includes a reflector array and a light source. The reflector array includes a plurality of unit corner reflectors each configured by joining a plurality of radio wave reflecting surfaces, the plurality of unit corner reflectors being disposed in an array. The light source is disposed at an edge portion of the unit corner reflector.