Reflection-Spectrum Lighting Control for Color Emphasis Without Damage
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Solution Overview
Problem
Current color mixing light sources struggle to enhance object perception while minimizing physical damage from lighting, as they often rely on limited color information and lack user-friendly control mechanisms, leading to potential damage from heating or photochemical reactions.
Innovation Solution
A lighting arrangement with a control unit that determines the object's type, receives its reflection spectrum, and adjusts the illumination spectrum to match it, using a combination of light sources to enhance color perception and reduce physical influences, such as heating or photochemical processes, by analyzing the reflection spectrum and adjusting the power distribution of the illuminating light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If color mixing light sources are used to enhance object perception, then color saturation and visual appeal are improved, but physical damage to the object from heating and photochemical reactions increases
Solution Approach 1:
The patent applies local quality by tailoring the illumination spectrum to match the specific reflection spectrum of each object type. Different object types (fruit, vegetables, flowers, artifacts) receive customized spectral compositions that enhance their specific color characteristics while avoiding harmful wavelengths. This is achieved through a control unit that selects from multiple light sources with different spectral characteristics based on the detected object type.
Solution Approach 2:
The system dynamically changes spectral parameters by adjusting the intensity of individual light sources within the color mixing arrangement. The control unit modifies the power distribution across different wavelengths to match the reflection spectrum of the illuminated object, thereby optimizing color enhancement while minimizing energy absorption that could cause heating or photochemical damage.
2Ease of operation
If automatic control systems are implemented to adjust illumination parameters, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The system implements self-service through an automatic control unit that detects the object type and autonomously adjusts the illumination parameters without requiring manual intervention. The control unit automatically identifies the object category (fruit, vegetable, flower, artifact, or other) and selects appropriate spectral settings, making the system easy to operate while the complexity is contained within the automated control mechanism.
3Adaptability or versatility
If multiple light sources with different colors are combined, then color mixing capability is improved, but device complexity and energy consumption increase
Solution Approach 1:
The system applies partial action by activating only the subset of light sources needed for the current illumination task. Rather than running all light sources continuously, the control unit selectively activates specific wavelengths based on the object type and its reflection spectrum, thereby reducing overall energy consumption while maintaining full color mixing capability when needed. The system has access to multiple wavelengths but uses only what is necessary for optimal color enhancement.
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
This approach allows for enhanced object perception by matching the illumination spectrum to the reflection spectrum, reducing damage from lighting and improving color representation, while maintaining a tolerable color rendering index and energy efficiency.
Implementation Method 1
receive a reflection spectrum of the object, select control parameters for controlling mixed light emitted by the lighting arrangement, the mixed light having an illumination spectrum matching the reflection spectrum of the object
Data Source
AI summary
A lighting arrangement (100, 300, 400, 600) configured to illuminate an object (108, 308, 408, 608), the lighting arrangement (100, 300, 400, 600) configured to emit light of a plurality of colors, and a control unit for controlling mixed light emitted by the lighting arrangement is disclosed. The control unit is configured to determine the object (108, 308, 408, 608) to be illuminated and to receive a reflection spectrum of the object. Then, the control unit selects control parameters for mixed light emitted by the lighting arrangement, the mixed light having an illumination spectrum matching the reflection spectrum of the object based on predetermined parameters relating to the type of object. Furthermore, the lighting arrangement illuminates the object based on the selected control parameters provided by the control unit. A corresponding method and a computer program product are also disclosed.