Illuminating Device with Segmented Diffusion Plate for Uniform Illuminance
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Solution Overview
Problem
Existing illuminating devices with multiple optical sources lack a definitive illuminance distribution, leading to unpredictable light mixing and suboptimal performance effects.
Innovation Solution
An illuminating device comprising multiple optical sources, a band-shaped diffusion plate with emission regions, and a control unit that adjusts lighting states and emission intensities based on a schedule to achieve a uniform average illuminance distribution, ensuring smooth light travel and enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple optical sources are arranged without definite illuminance distribution, then the device complexity is reduced, but the light mixing performance becomes unpredictable and suboptimal
Solution Approach 1:
The diffusion plate is divided into multiple emission regions, each corresponding to a specific optical source. This segmentation allows independent control of light emission from each region, enabling precise illuminance distribution while maintaining a relatively simple overall device structure.
Solution Approach 2:
Different emission regions on the diffusion plate are assigned different optical characteristics to optimize light mixing performance. The control unit adjusts the illuminance of each emission region independently, creating local quality variations that enhance overall light distribution without requiring complex device architecture.
2Ease of operation
If the illuminance of each optical source is controlled independently without average illuminance reference, then the ease of operation is improved, but the optical performance becomes indefinite and suboptimal
Solution Approach 1:
The control unit uses average illuminance as a reference feedback parameter to adjust the illuminance of individual emission regions. This feedback mechanism ensures that while each region can be controlled independently for ease of operation, the overall optical performance remains consistent and reliable through continuous reference to the average illuminance level.
3Device complexity
If the lighting schedule does not consider temporal change of average illuminance, then the device complexity is reduced, but the performance effect of light is suboptimal
Solution Approach 1:
The lighting schedule dynamically adjusts the illuminance of emission regions over time based on the temporal change of average illuminance. This dynamic control enhances the performance effect by creating smooth transitions and optimized light distribution sequences, while the control system maintains manageable complexity through systematic scheduling algorithms.
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 achieves a controlled and uniform temporal change in average illuminance, enhancing the performance effect by visualizing light travel smoothly and optimizing light distribution across the diffusion plate.
Implementation Method 1
a band-shaped diffusion plate having a plurality of emission regions corresponding on a one-to-one basis to the plurality of the optical sources respectively
Data Source
AI summary
An illuminating device may include optical sources, a diffusion plate having emission regions corresponding to the optical sources, and a control unit configured to control lighting-up/lighting-out and an emission intensity of the optical sources based upon a schedule when carrying out performance on an optical travel by the diffusion plate. The emission regions each may have a predetermined length and extend in a longitudinal direction of the diffusion plate. In the schedule, a light-up/light-out state of each optical source and an emission intensity of an optical source to be lit up are set based upon an average illuminance in an illuminance distribution of the diffusion plate by combining illuminances of lights emitted from the emission regions. For realizing a temporal change of the average illuminance set, the light-up/light-out state of each optical source and emission intensity of the optical source to be lit up in each time point are set.