LED Light Signalling Device with Phosphor Conversion and Filtering Cap
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Solution Overview
Problem
Current light signalling devices require multiple light blocks and caps to achieve standard colors, leading to practical and technical challenges such as complex management and impractical replacement processes due to the placement of light blocks at the rear of panels.
Innovation Solution
A device with a light-emitting diode emitting a signal in the blue or ultraviolet range, conversion means using a phosphor function to convert the signal into a wider wavelength range, and a cap to filter this range to achieve standard colors, allowing for a single light block to produce various colors with enhanced intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light blocks and caps are used to achieve standard colors, then color variety is improved, but device complexity increases
Solution Approach 1:
A single light block with a blue or ultraviolet light-emitting diode serves multiple functions by combining it with conversion means (phosphor) and different caps to produce various standard colors. The light block itself becomes universal, capable of generating different colors through the combination with conversion means and caps, thereby reducing the need for multiple dedicated light blocks for each color.
Solution Approach 2:
The invention changes the wavelength parameter of the light signal by introducing conversion means between the light-emitting diode and the cap. The conversion means transforms the blue or ultraviolet light from the diode into a wider wavelength range, and the cap then filters this range to achieve standard colors. This parameter transformation allows a single light source to produce multiple colors.
2Stability of the object's composition
If light blocks are placed at the rear of panels, then structural stability is improved, but ease of operation deteriorates
Solution Approach 1:
The device is segmented into distinct functional components: the light block containing the light-emitting diode, the conversion means, and the cap. This segmentation allows the light block to be positioned at the rear for structural stability while the cap remains accessible at the front. The modular design enables independent replacement of the light block without disturbing the overall panel structure.
Solution Approach 2:
The conversion means acts as an intermediary element between the light block and the cap. It is positioned in front of the light block but can be integrated with or separated from the cap assembly. This intermediary structure allows the light block to remain recessed at the rear while still enabling color changes through cap replacement, maintaining both structural stability and operational ease.
3Manufacturing precision
If multiple light block-cap combinations are maintained, then color accuracy is improved, but inventory management complexity increases
Solution Approach 1:
The light block is designed as a universal component that can work with different caps and conversion means to produce various standard colors. Instead of maintaining separate light blocks for each color, a single universal light block design reduces inventory complexity while the specific color accuracy is achieved through the combination with appropriately designed caps and conversion means.
Solution Approach 2:
The invention separates the color determination function from the light block itself and places it in the cap and conversion means. The light block emits a standardized blue or ultraviolet signal, and the color transformation is achieved through passive optical elements (conversion means and cap). This parameter separation simplifies inventory management as the light block design remains constant while color variations are achieved through accessory components.
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
Facilitates the production of standard colors with higher intensity and simplifies device management by using a single light block and cap combinations, reducing the complexity of color changes and improving operational efficiency.
Implementation Method 1
A light-emitting diode designed to emit a first light signal in a first wavelength range in the blue or the ultraviolet
Implementation Method 2
Conversion means arranged for converting said first light signal emitted by the light-emitting diode in said first wavelength range into a second light signal in a second wavelength range
Data Source
AI summary
A device with a light signaling function including a light-emitting diode designed to emit a first light signal in a first wavelength range in the blue or the ultraviolet, conversion device arranged for converting the first light signal emitted by the light-emitting diode in the first wavelength range into a second light signal in a second wavelength range, a cap arranged for filtering the second light signal with a view to obtaining a color included in a standard color space. The conversion device being chosen so the second wavelength range includes the normal color space.