Portable Light Detector for Color Point Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lighting systems, particularly those using solid state light emitters, face challenges in maintaining consistent color and lumen output over time due to variations in ambient temperature and aging, leading to deviations from the intended hue and brightness, which can result in inefficient energy use and premature replacement, especially in difficult-to-reach locations.
Innovation Solution
A portable device equipped with a light detector and correction calculator that detects the light emitted by a lighting system and generates correction signals to adjust the color point and lumen output, ensuring the light output matches the intended specifications, thereby extending the lifespan of the lighting system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If solid state light emitters are used to provide energy-efficient lighting, then energy efficiency is improved, but color point and lumen output consistency deteriorates over time due to temperature variations and aging
Solution Approach 1:
The patent employs feedback control by using light detectors to continuously monitor the actual color point and lumen output of the lighting system. The correction calculator compares detected values with target specifications and generates correction signals that are fed back to the light sources, automatically adjusting their output to maintain consistency despite temperature variations and aging effects.
Solution Approach 2:
The system dynamically changes operational parameters of the light sources based on detected conditions. The correction calculator adjusts current or voltage parameters supplied to individual light sources to compensate for drift in color point and lumen output, thereby maintaining stable lighting characteristics over time and across different operating conditions.
2Reliability
If light sources are replaced to maintain color and brightness specifications, then lighting performance is maintained, but maintenance costs and complexity increase especially in difficult-to-reach locations
Solution Approach 1:
The lighting system performs self-correction through the integrated correction device that automatically monitors and adjusts light source parameters. The system serves itself by detecting deviations from target specifications and applying corrections without human intervention, eliminating the need for manual replacement of light sources and reducing maintenance complexity in hard-to-reach locations.
Solution Approach 2:
The feedback mechanism continuously monitors lighting performance and automatically adjusts light source parameters to maintain specifications. This closed-loop control prevents performance degradation that would otherwise require manual intervention and replacement of light sources, thereby maintaining reliability while reducing maintenance complexity.
3Adaptability or versatility
If multiple light sources with different hues are used to achieve desired color output, then color flexibility is improved, but maintaining consistent color point becomes more difficult
Solution Approach 1:
The correction device applies individualized correction to each light source based on its specific characteristics and contribution to the overall color output. The correction calculator determines separate correction signals for light sources of different hues, allowing each to operate at its optimal characteristics while collectively maintaining the desired color point through localized adjustments.
Solution Approach 2:
The system uses feedback to monitor the combined color output of multiple light sources and automatically adjusts individual light source parameters to maintain the target color point. The correction calculator processes detected color information and generates appropriate correction signals for each light source, ensuring consistent overall color output despite the use of multiple different hues.
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 allows for real-time monitoring and adjustment of light output, ensuring consistent color and brightness, reducing energy waste and extending the operational life of lighting systems, even in challenging environments.
Implementation Method 1
a light detector that detects light emitted from the at least a first light source
Data Source
AI summary
A portable device comprising a light detector, a correction calculator and a correction output element. In some aspects, (1) correction (and/or adjustment) is of color point, lumen output, or both, (2) the portable device is a smart phone or a computing device, and/or (3) a wireless correction signal is transmitted and received. Lighting system, comprising a light source, and a portable device that comprises a light detector, a correction calculator, and a correction output element. Lighting device comprising a light source and a receiver. A method comprising detecting light with a light detector of a portable device, generating a correction signal, and outputting the correction signal with a correction output element of the portable device. Method comprising placing a portable device in a calibration location, illuminating a lighting device, and detecting light emitted from the lighting device with a light detector of the portable device that has a correction calculator.