Ambient Light Sensing LED Strobe System
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Solution Overview
Problem
Conventional LED strobe or flash lighting systems are inadequate in low ambient light environments and unable to adjust their color temperature based on environmental conditions, leading to suboptimal image capture in varying lighting situations.
Innovation Solution
An intelligent color-tunable LED strobe system that incorporates an ambient light sensor to detect intensity and color temperature, adjusting the brightness and color temperature of the emitted light to match ambient conditions, using a combination of warm and cool LEDs arranged in specific patterns to achieve homogeneous color temperature and sufficient illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LED strobe or flash lighting systems are used, then the device remains simple and portable, but the lighting is inadequate in low ambient light environments
Solution Approach 1:
The patent implements dynamic adjustment of LED parameters based on ambient light detection. The system continuously monitors ambient light conditions and automatically adjusts LED intensity and color temperature to match the environment, transitioning from static conventional LEDs to a dynamic adaptive lighting system that resolves the contradiction between simplicity and effectiveness.
Solution Approach 2:
The system changes operational parameters (intensity and color temperature) of the LED array based on detected ambient conditions. By varying these parameters dynamically, the system achieves adequate lighting in low ambient light environments while maintaining the basic LED structure, thus improving performance without proportionally increasing complexity.
2Adaptability or versatility
If conventional LED strobe or flash lighting systems are used, then the device structure remains simple, but the color temperature cannot be adjusted to match ambient conditions
Solution Approach 1:
The patent employs feedback control where the ambient light sensor continuously monitors environmental conditions and feeds this information to the controller, which then adjusts LED color temperature accordingly. This closed-loop feedback mechanism enables automatic adaptation to ambient conditions, resolving the contradiction between adaptability and complexity by using simple sensor feedback rather than complex manual control systems.
Solution Approach 2:
The lighting system performs self-adjustment by automatically detecting ambient conditions and modifying its own output parameters without external intervention. The system serves itself by using the ambient light sensor to autonomously control LED color temperature, eliminating the need for complex user interfaces or external control devices while achieving high adaptability.
3Illumination intensity
If LED flash is limited to a few watts for portable devices, then the device remains portable and compact, but the lighting is inadequate in low ambient light environments
Solution Approach 1:
The system dynamically adjusts LED power output based on actual lighting needs detected by the ambient light sensor. Rather than operating at fixed low power or requiring high power continuously, the system optimizes energy consumption by matching LED output to environmental conditions, thus achieving adequate lighting when needed while maintaining portability through efficient power management.
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 system provides superior image capture by ensuring adequate and color-matched lighting in diverse environments, enhancing image quality and uniformity, especially in low-light conditions.
Implementation Method 1
an ambient light sensor configured to detect an intensity and a color temperature of ambient light
Implementation Method 2
an array of LEDs... adjust, based on the output, an intensity and color temperature of the array of LEDs
Data Source
AI summary
The disclosed technology relates to a lighting system that utilizes an ambient light sensor to detect at least one of a color temperature and intensity of ambient light to set or adjust at least one of an intensity and color temperature of light to be emitted by an array of LEDs. The array of LEDs include at least one warm color temperature LED and at least one cool color temperature LED.