Trompe-l'Oeil Skylight Lighting With Circadian and Cloud Modulation
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Solution Overview
Problem
Existing trompe-l'oeil skylights and windows fail to convincingly mimic natural daylight changes, leading to a lack of realism and ineffective pacification of patients or workers in environments without natural light.
Innovation Solution
A Light Emitting Diode (LED) illumination system with dynamic modulation of light color and intensity, mimicking natural cloud patterns and daylight progression, using a bi-sensory approach to create a credible illusion of spatial cognition and circadian/ultradian rhythms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If static backlighting is used in trompe-l'oeil skylights, then manufacturing simplicity is maintained, but realism and cognitive effectiveness deteriorate
Solution Approach 1:
The patent applies dynamics by transitioning from static backlighting to dynamic LED illumination that changes color temperature and intensity over time. The system uses circadian rhythm algorithms to modulate light properties, creating temporal variation that mimics natural daylight cycles. This dynamic approach enhances realism without requiring complex mechanical moving parts, resolving the contradiction between manufacturing simplicity and realism quality.
Solution Approach 2:
The patent implements parameter changes by varying LED output characteristics (color temperature, intensity, spectral composition) according to circadian and ultradian rhythm patterns. These parameter modulations create perceptible changes in the illuminated image, transforming the static visual experience into a dynamic one that resembles natural light variations throughout the day, thereby improving realism while maintaining electronic control simplicity.
2Manufacturing precision
If dynamic LED modulation is implemented to mimic natural light changes, then realism and cognitive benefits improve, but device complexity increases
Solution Approach 1:
The patent applies universality by using multi-color LED modules (RGB or RGBW) that can generate multiple wavelengths and color temperatures from a single device. This multi-functional capability allows the system to simulate various natural light conditions (morning, noon, evening light) without requiring separate light sources for each condition, thereby reducing overall system complexity while maintaining high realism quality.
Solution Approach 2:
The patent implements copying by using translucent image panels that contain printed or projected images of sky scenes, clouds, and atmospheric phenomena. These static images serve as templates that, when illuminated by dynamically modulated LEDs, create the illusion of real sky views. The copying approach allows complex visual effects to be achieved through simple electronic modulation of backlighting rather than complex optical mechanisms.
3Duration of action of moving object
If extended exposure to trompe-l'oeil skylights is provided, then pacification and cognitive benefits are enhanced, but perceptual skepticism increases over time
Solution Approach 1:
The patent applies periodic action by implementing ultradian rhythm modulations (approximately 90-minute cycles) superimposed on circadian rhythm patterns. These periodic variations in light intensity and color create subtle, naturally occurring fluctuations that prevent the visual system from adapting completely to the static image, thereby maintaining illusion credibility over extended exposure periods. The periodic modulations mimic natural atmospheric changes such as passing clouds and light variations.
Solution Approach 2:
The patent implements feedback by using sensors to detect ambient light conditions and adjusting LED output accordingly. This feedback mechanism ensures that the illuminated image maintains appropriate brightness and color relationships with the surrounding environment, preventing the illusion from breaking down due to inconsistent lighting conditions. The feedback loop continuously adapts the system to maintain realism credibility over time.
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 system effectively tricks the eye into believing it is experiencing real natural light changes, enhancing realism and providing cognitive benefits through circadian and ultradian rhythm entrainment.
Implementation Method 1
A Light Emitting Diode (LED) illumination system with dynamic modulation of light color and intensity
Implementation Method 2
The system mimics daylight's diurnal progression while interweaving naturally occurring modulations created by clouds passing overhead. The present invention is believed to be the first tunable system that entrains our circadian rhythms
Data Source
AI summary
A system and method for creating trompe-I'oeil skylights and windows where a light emitting image of scene is provided in a structure configured to emulate a skylight or window frame, including an embodiment of a system that modulates using multiple modalities, the light emitted by the light emitting image so as to improve realism experienced by users exposed to the light emitting image over an extended period of time, where the multiple modalities includes a circadian rhythm modality, and an ultradian modality, where the ultradian modality is provide by randomly calling on grayscale video files to module the signals from DMX decoders to LEDs by using captured data from actual sky observations over extended periods of time.