Multi-Mode Lighting Device for Enhanced Object Detection
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Solution Overview
Problem
Current lighting devices are inadequate for effectively identifying objects with specific radio wavelength absorption, refraction, and/or reflection properties, particularly in environments where visual acuity varies among users.
Innovation Solution
A lighting device with a control system that switches between multiple spectral modes, including a 'dulling mode' and a 'vivifying mode,' to enhance the visibility of specific wavelengths by adjusting the intensity and duty cycle of different wavelength segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If a lighting device uses conventional single-mode illumination, then the device structure is simple and energy consumption is low, but the ability to identify objects with specific wavelength properties is insufficient
Solution Approach 1:
The lighting device divides the illumination into multiple spectral modes, each targeting specific wavelength ranges. The controller selectively activates different LED groups (first, second, and third light emitting diodes) to provide distinct spectral characteristics, enabling the device to segment the spectrum for optimized detection of specific objects.
Solution Approach 2:
The lighting device dynamically switches between multiple spectral modes based on detection needs. The controller adjusts the illumination characteristics in real-time by selecting different combinations of LED groups, allowing the device to adapt its spectral output to match the specific detection requirements of different objects in the environment.
2Adaptability or versatility
If the lighting device provides multiple spectral modes, then the detection capability for different objects is improved, but the device complexity and control system requirements increase
Solution Approach 1:
The lighting device achieves multi-functionality by using a single integrated system that can perform multiple detection tasks. Different combinations of LED groups are activated to provide various spectral modes suitable for detecting different object types (e.g., blood, plants, minerals), allowing one device to replace multiple specialized detection systems.
Solution Approach 2:
The controller receives input signals from sensors and uses this feedback to automatically select appropriate spectral modes. The system adjusts illumination characteristics based on real-time detection requirements, creating a closed-loop control system that reduces manual intervention and simplifies operation despite the complexity of multiple modes.
3Illumination intensity
If the lighting device uses high-intensity illumination to improve visibility, then the detection range is extended, but the energy consumption and potential harmful effects increase
Solution Approach 1:
The lighting device applies different illumination intensities and spectral characteristics to different spatial regions and detection tasks. Instead of using uniform high-intensity illumination, the system selectively activates specific LED groups based on the local detection requirements, providing optimized illumination only where and when needed.
Solution Approach 2:
The lighting device employs periodic or pulsed illumination patterns rather than continuous high-intensity lighting. The controller can modulate the illumination on/off cycles to reduce overall energy consumption while maintaining sufficient detection capability during active illumination periods, and to allow thermal management of the LED 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
The device improves the ability to detect objects with specific wavelength properties, such as blood, by making them appear more vivid or emphasized, while maintaining a consistent color appearance under direct viewing.
Implementation Method 1
objects with specific radio wavelength absorption, refraction, and/or reflection properties
Implementation Method 2
objects with specific radio wavelength absorption, refraction, and/or reflection properties
Implementation Method 3
objects with specific radio wavelength absorption, refraction, and/or reflection properties
Data Source
AI summary
A method of operating a lighting device is disclosed for providing power to a light source that has at least two modes of operation. Each mode of operation propagates a beam of light having different spectral characteristics, wherein when the two modes are operated, the total spectral output enhances a visual characteristic of a target within an area surrounding the target. A first mode of the at least two modes is a dulling mode and a second mode of the at least two modes is a vivifying mode.