Light Transmissive Cover for Vehicle LED Communication
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Solution Overview
Problem
The existing light emitting devices in slide rails for vehicles experience a decrease in communication performance due to the influence of grease, which causes scattering and shielding of light, leading to reduced signal transmission and reception efficiency.
Innovation Solution
A light emitting device is designed with a light transmissive cover that is tubular or bottomed tubular in shape, with a protruding bottom portion that increases in size towards the central axis of the light emitter, reducing the likelihood of grease adherence and maintaining communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the LED is attached to the slide seat and slides inside the slide rail with grease applied, then the slide seat can move smoothly, but the grease adheres to the LED and causes scattering and shielding of light, decreasing communication performance
Solution Approach 1:
A light-transmissive cover is introduced as an intermediary component between the LED and the grease in the slide rail. The cover allows light to pass through while preventing grease from directly contacting the LED, thus maintaining both smooth sliding and communication performance
Solution Approach 2:
The light-transmissive cover acts as a protective shell that is transparent to light. This thin film structure protects the LED from grease contamination while maintaining optical transmission for communication
2Reliability
If a light transmissive cover is added to protect the LED from grease, then communication performance is maintained, but device complexity increases
Solution Approach 1:
The light-transmissive cover is implemented as a simple transparent shell or film that provides protection without adding complex mechanical structures. This maintains reliability while minimizing increases in device complexity
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 use of a light transmissive cover effectively minimizes the impact of grease on the light emitting device, preventing a decrease in communication performance by reducing grease adherence and ensuring consistent signal transmission and reception.
Implementation Method 1
a light transmissive cover that covers the light emitter
Data Source
AI summary
A light emitting device includes a light emitter, a holding portion that slidably holds the light emitter inside a slide rail for a vehicle, and a light transmissive cover that covers the light emitter. According to a configuration, the cover of the light emitting device prevents a decrease in a communication performance of a signal transmission and reception device in which information on an electronic device is transmitted using an LED, as compared with a related art in which the communication performance decreases due to influence of scattering or shielding a light of the LED, the influence being caused by a grease which is heavily applied inside a slide rail of a vehicle and adheres to the LED.