Light Effect Arrangement Using Obscuration and Divergence Sheets
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Solution Overview
Problem
Existing light effect arrangements lack increased functionality and complexity in generating three-dimensional light patterns, especially when using non-punctiform or hemispheric light sources, and are limited in their ability to utilize natural light effectively.
Innovation Solution
The arrangement comprises an obscuration sheet material with transmission and shielding regions, an effect sheet material, and optionally a divergence sheet material, where the obscuration sheet material acts as a diaphragm to control light intensity and direction, allowing for the creation of complex light patterns and the use of natural light, and the divergence sheet material converts parallel sunlight into divergent light, generating virtual punctiform light sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single sheet material is used to generate light effects, then the structure is simple, but the functionality and complexity of light patterns are limited
Solution Approach 1:
The arrangement is divided into multiple functionally distinct sheet materials: an obscuration sheet material with transmission and shielding regions, an effect sheet material for generating light patterns, and optionally a divergence sheet material. Each layer performs a specific function, enabling complex light effects while maintaining modular simplicity
Solution Approach 2:
The patent introduces a multi-layer stacked configuration where sheet materials are arranged in partially overlapping relation in the viewing direction. This adds a dimensional aspect to the light effect generation, allowing light to interact with multiple layers sequentially to produce complex three-dimensional light patterns
2Adaptability or versatility
If punctiform or hemispheric light sources are used, then the light pattern generation is straightforward, but the ability to create complex light patterns and use natural light is limited
Solution Approach 1:
The obscuration sheet material with its transmission and shielding regions functions as a universal light control element that can work with various light source types including punctiform sources, hemispheric sources, and natural sunlight. The sheet material adapts its light modulation function regardless of the source type, enabling versatile application
Solution Approach 2:
The obscuration sheet material acts as an intermediary between the light source and the effect sheet material. It modifies and conditions the light (by transmitting through transmission regions and shielding in shielding regions) before it reaches the effect material, enabling complex light patterns to be generated from simple light sources including natural sunlight
3Use of energy by moving object
If the transmission region area is large, then more light is transmitted, but the intensity difference between transmission and shielding regions decreases
Solution Approach 1:
The obscuration sheet material features localized transmission regions with specific shapes (such as circular, elliptical, or irregular forms) distributed across the sheet. These transmission regions have controlled sizes and positions that allow sufficient light transmission while maintaining high intensity contrast against the surrounding shielding regions. The local quality of light transmission is optimized in specific areas rather than uniformly across the entire sheet
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 configuration enhances light intensity differences between transmission and shielding regions, enabling the creation of more complex and aesthetically appealing light effects, suitable for decorative and shading purposes, while allowing the use of natural light sources.
Implementation Method 1
The at least one shielding region is able to almost completely shield the light
Implementation Method 2
The light exiting from the transmission regions of the obscuration sheet material impinges on the rear side of the effect sheet material and is reflected and/or scattered
Implementation Method 3
The light exiting from the transmission regions of the obscuration sheet material impinges on the rear side of the effect sheet material and is reflected and/or scattered
Implementation Method 4
the divergence sheet material converts the parallel sun light into divergent light
Data Source
AI summary
An arrangement (10) for generating a light effect (26) includes an obscuration sheet material (11) and a divergence sheet material (12) arranged in spaced apart relation to a rear side (23) of an effect sheet material (13). The obscuration sheet material (11) has at least one transmission region (17) and at least one shielding region (18). On the light entry side (15), which faces away from the effect sheet material (13), light (L) impinges on the obscuration sheet material (11) and is severely reduced or completely shielded in shielding region (18), while light (L) passes through the at least one transmission region (17). By means of the divergence sheet material (12), divergent light rays (LD) are produced at the corresponding transmission region (17), which divergent light rays impinge on the rear side (23) of the effect sheet material (13) and generate a light effect (26) for a viewer (25) looking at the viewing side (24).