LED Covering Element with Scattering Emitter
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Solution Overview
Problem
High-intensity LEDs installed in planar device surfaces can be distracting in certain environments, and completely disconnecting them to reduce light emission is cumbersome and disrupts the information function they provide.
Innovation Solution
A covering element with a multipart emitting body and circumferential fastening web that attenuates and scatters light, allowing partial light transmission while maintaining the LED's information function, featuring a plastic construction for effective light absorption and scattering, and a rapid adhesive fastening mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the LED is completely disconnected from the power supply to reduce light emission, then the perturbing effect is eliminated, but the information function is lost and considerable interventions are required
Solution Approach 1:
The patent introduces a covering element as an intermediary component between the LED and the environment. This element partially blocks and scatters the light without completely disconnecting the LED, thus reducing the dazzling effect while preserving the information function and avoiding complex electrical interventions
Solution Approach 2:
Instead of completely blocking the light (excessive action) or leaving it fully exposed (insufficient action), the covering element implements partial blocking that allows some light transmission. This partial action reduces the harmful dazzling effect while maintaining the useful information display function
2Object-affected harmful factors
If the LED is completely disconnected from the power supply to reduce light emission, then the perturbing effect is eliminated, but the information function is lost
Solution Approach 1:
The covering element implements partial light blocking rather than complete disconnection. It allows sufficient light transmission to maintain the information display function (LED status indication) while reducing the harmful dazzling effect to an acceptable level
Solution Approach 2:
The covering element has non-uniform optical properties with different regions providing different functions: some areas block light to reduce dazzling, while other areas allow light transmission to preserve information display. This local differentiation of optical properties resolves the contradiction between reducing harm and maintaining information
3Object-affected harmful factors
If a covering element is introduced to reduce light emission, then the dazzling effect is reduced, but device complexity increases
Solution Approach 1:
The covering element is designed as a separate, extractable component that can be independently manufactured and installed. This extraction of the light-modifying function from the LED itself allows for simpler overall device architecture while still achieving the desired light reduction effect
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 effectively reduces the distracting effect of LEDs while preserving their functional display, enabling easy installation and cost-effective mass production.
Implementation Method 1
the emitting body ensures at least one of the two following functions: on the one hand, only a part of the light emitted by the LED is transmitted at all through the emitting body, on the other hand a considerable proportion of the transmitted light is scattered during transmission
Implementation Method 2
a considerable proportion of the transmitted light is scattered during transmission so that a dazzling effect is no longer achieved
Implementation Method 3
a preferably circumferential adhesive surface is formed on the circumferential fastening web on its side facing away from the emitting body in order to be able to fasten the covering element on a device surface
Data Source
AI summary
A covering element for covering an LED installed in a planar device surface, comprising a one- or multipart emitting body as well as a circumferential fastening web connected to the one- or multipart emitting body, wherein a receiving space is formed between the fastening web and the emitting body, into which an LED projecting over the device surface can dip.