LED Luminance Specification Tool for Signage Layouts
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Solution Overview
Problem
It is challenging to specify and maintain consistent illumination and color levels in LED signage, particularly when dealing with varied signage dimensions and shapes, as existing methods lack intuitive visualization and require time-consuming LED layout adjustments.
Innovation Solution
A luminance and color specification tool with a digital touch-panel interface allows users to select illumination levels and color temperature, enabling real-time luminance calculation and conversion between Cd/m² and LUX, facilitating the production of consistent LED layouts that meet target specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If LED layout is manually adjusted for each signage variation to maintain consistent brightness and color, then illumination consistency is improved, but time consumption and complexity increase significantly
Solution Approach 1:
The system changes the approach from manually adjusting LED layouts to calculating required LED quantities based on target luminance parameters. By establishing luminance targets and using the luminance calculator to determine exact LED requirements, the system automatically adapts to different signage dimensions and shapes without manual layout adjustments, resolving the contradiction between consistency and time consumption.
Solution Approach 2:
The system creates a standardized specification template that can be copied and applied across different signage variations. Instead of manually creating unique layouts for each sign, the luminance calculation methodology serves as a reusable template that automatically adapts to various dimensions and shapes, maintaining consistency while reducing repetitive work.
2Productivity
If end result illumination targets are specified without visible reference, then specification speed is improved, but accuracy and understanding of luminance/cct relationship deteriorates
Solution Approach 1:
The luminance calculator serves as an intermediary tool between the desired end result and the LED configuration. It translates target luminance values into specific LED quantity requirements, providing a mathematical bridge that maintains both specification speed and accuracy. The calculator ensures precise luminance understanding without requiring manual trial-and-error adjustments.
Solution Approach 2:
The system replaces the mechanical trial-and-error approach of manually adjusting LED layouts with a computational calculation system. The luminance calculator uses mathematical formulas to directly determine the correct LED quantities needed to achieve target luminance, substituting physical experimentation with precise computational analysis.
3Manufacturing precision
If visual observation of sign design scenarios is performed with physical prototypes, then design accuracy is improved, but device complexity and production time increase
Solution Approach 1:
The system uses virtual visualization through the luminance calculator instead of physical prototypes. The calculator provides a digital representation of the expected luminance output based on input parameters, allowing designers to observe and evaluate design scenarios without constructing physical models. This virtual copying maintains design accuracy while eliminating the complexity of physical prototyping.
Data Source
AI summary
An LED specification system is provided having at least one LED light output device. The LED light output device has an LED light source, a first exchangeable face panel selectable from a plurality of potential exchangeable face panels, and a housing for locating the exchangeable face panel relative to the LED light source and for orienting the LED light source such that light from the LED light source passes through the first exchangeable face panel. The LED specification system further includes a user interface for selecting at least one preferred output characteristic for light from the LED light output device. The preferred output characteristic is defined by a metric value. The LED specification system further includes a transformation module for defining an LED specification value based at least partially on the defined metric value and a characteristic of the LED light source.