Luminaire Light Emission Matrix Control for Image Illumination Interference
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Solution Overview
Problem
Combining illumination and display functions in a single luminaire can lead to interference between illumination light and image light, particularly when the display is oriented to output image light in the same direction as illumination, resulting in suboptimal performance for general lighting applications.
Innovation Solution
The luminaire employs a method where a first light emission matrix for image display and a second light emission matrix for general illumination are co-located, with the processor controlling the matrices to select areas where illumination light output will not interfere with the image light output, by operating only the necessary emitters and maintaining others in a neutral state, thereby mitigating interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If illumination light source and display are co-located with overlapping output regions, then the luminaire provides both illumination and display functionality, but the illumination light produces visual interference with the displayed image
Solution Approach 1:
The light emission matrix is segmented into multiple independently controllable light emission elements (pixels). Each element can be individually activated or deactivated based on whether it needs to contribute to illumination or display, allowing selective operation that reduces visual interference while maintaining dual functionality.
Solution Approach 2:
Different regions of the light emission matrix are assigned different operational states based on local requirements. Elements in regions where display is prioritized are kept in neutral state or activated for display, while elements in regions where illumination is prioritized are activated for illumination, creating local quality variations that resolve the interference problem.
2Illumination intensity
If illumination light intensity is increased for general lighting application, then illumination performance is improved, but interference with image display increases
Solution Approach 1:
The illumination function is segmented across multiple independent light emission elements rather than relying on uniform high intensity from all elements. This allows the system to achieve sufficient total illumination intensity while keeping individual element intensities lower, reducing their interfering effect on the display.
Solution Approach 2:
Not all light emission elements are activated simultaneously for illumination. Instead, only the necessary portion of elements are activated to provide sufficient illumination intensity, while the remaining elements stay in neutral state to avoid interfering with the displayed image.
3Use of energy by moving object
If all light emission elements are activated for illumination, then sufficient illumination is provided, but the display image becomes illegible due to interference
Solution Approach 1:
The light emission matrix is divided into functionally independent elements that can be selectively activated. This segmentation allows the system to activate only the necessary elements for illumination while keeping display-critical elements in neutral state, maintaining both illumination output and image legibility.
Solution Approach 2:
Different operational qualities are applied to different spatial locations within the light emission matrix. Elements in display-critical regions are kept in neutral state to preserve image legibility, while elements in illumination-critical regions are activated to provide sufficient illumination output.
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 effectively reduces visual interference, allowing for concurrent illumination and image display without compromising the perception of the image, thus enhancing the luminaire's functionality for general lighting applications.
Implementation Method 1
a first light emission matrix of a display to emit output light of an image from a luminaire... a second light emission matrix co-located in the luminaire with the first light emission matrix of the display
Data Source
AI summary
For a luminaire offering both illumination and display functionality, control strategies coordinate illumination/image output so as to mitigate interference of the illumination light output with aspects of the displayed image light output. In one example, when displaying a selected image with one or more white regions in the image, a sufficient number of selected white illumination emitters can be ON or operating in a low power state in the white regions while the rest of the luminaire output area can display the non-white elements of the image with aligned illumination emitters turned OFF. In another example, an image is displayed in a selected region of the luminaire output while illumination emitters within the area displaying the image are OFF or operating in a low power state, but illumination emitters along other parts of the luminaire output are turned ON.