Artificial Skylight Baffle Layout for Sunlight Beam Simulation
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Solution Overview
Problem
Existing artificial skylights are costly and complex, requiring compact, extremely bright light sources to simulate sunlight effectively, and often necessitate expensive optical elements, making installation cumbersome.
Innovation Solution
An artificial skylight design featuring an elongated light source with baffles to produce collimated and diffused light, using a simple optical architecture with a cavity and baffles to create a convincing sunlight beam effect without expensive optical elements, allowing for easy installation and reduced complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a compact and extremely bright light source is used to create a sharply defined beam of artificial sunlight, then the sunlight simulation effect is improved, but the cost and installation complexity increase significantly
Solution Approach 1:
The light source is segmented into multiple LED modules arranged in a linear array, where each module contributes to the overall beam formation. This segmentation allows the system to achieve high illumination intensity through cumulative effect of multiple sources rather than requiring a single extremely bright source, thereby reducing installation complexity and cost while maintaining the sharply defined beam effect
Solution Approach 2:
Optical elements such as lenses or reflectors are introduced as intermediaries between the LED light source and the exit window. These optical elements collimate and direct the light from multiple LED modules to form a unified sharply defined beam, enabling the system to achieve sunlight-like intensity without requiring each individual LED to be extremely bright, thus simplifying installation
2Manufacturing precision
If expensive optical elements are used to create a convincing sunlight beam effect, then the light directionality is improved, but the cost increases
Solution Approach 1:
The optical parameters of the system are optimized by adjusting the angular distribution and intensity profile of the LED light source to match natural sunlight characteristics. By carefully controlling the beam angle, intensity distribution, and spectral composition of the LED array, the system achieves convincing sunlight simulation with improved directionality without requiring expensive specialized optical elements
Solution Approach 2:
The invention copies the essential characteristics of natural sunlight (directionality, intensity profile, spectral composition) using standard LED technology and simple optical components. Instead of using expensive optical elements to create artificial effects, the system directly replicates sunlight parameters through LED configuration and control, achieving cost-effective manufacturing with convincing sunlight beam effect
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 solution provides a cost-effective and easy-to-install artificial skylight that simulates a natural sunlight beam with sharp edges and a realistic sky impression, using a simple optical design and adjustable baffles to enhance the sunlight simulation.
Implementation Method 1
the light source is configured to issue light source light into the cavity of the elongated light box
Implementation Method 2
said light box light comprising a portion of directed, collimated light
Implementation Method 3
a portion of diffused light
Data Source
AI summary
Artificial skylight (1000) comprising an elongated light source (1) accommodated in an elongated light box (5) comprising a base wall (7) and a light exit window (9) mutually connected by a circumferential side wall (11). The light source issues light source light (17) into the cavity of the elongated light box, said light source light subsequently is issued from the cavity through the light exit window as light box light (19), which comprises a portion of directed, collimated light (19a) and a portion of diffused light (19b). The collimated light has a beam angle α in a transverse direction T, wherein α is only determined by the mutual positions of the light source and a first (15a) and a second baffle (15b) comprised in the artificial skylight. Said first baffle is arranged closer to the light source than said second baffle, and the light source is offset in the transverse direction such to screen it from a direct view.