Lighting Device Alternating Fast Slow Dynamic Light Output
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dynamic lighting systems fail to sustain attention effectively, as monotonous repetition of pulsating light effects leads to discomfort and reduced attractiveness, and the transition from dynamic to static light modes causes individuals to lose interest in the target object.
Innovation Solution
A lighting device with alternating fast and slow dynamic light output components, characterized by different time-dependent primary light output characteristics and switching intervals, maintaining constant perceived light intensity to engage and retain attention without on-off blinking behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If monotonous repetition of dynamic light effect at constant frequency is used, then attention can be initially drawn to the target object, but discomfort and annoyance occur quickly reducing attractiveness
Solution Approach 1:
The lighting device dynamically adjusts the time constant of the light output characteristic waveform based on detected presence and interaction states. The system transitions from a first time constant (when no presence is detected) to a second time constant (when presence is detected), creating adaptive dynamic lighting behavior that prevents monotony and maintains engagement without causing discomfort.
Solution Approach 2:
The system changes the time constant parameter of the light output characteristic based on operational conditions. By switching between different time constant values (first time constant vs. second time constant) depending on presence detection and interaction state, the lighting effect adapts to user engagement levels, preventing the monotony that leads to discomfort while maintaining attention attraction.
2Ease of manufacture
If dynamic light output is used to attract attention, then the target object becomes noticeable, but switching to static light mode causes loss of attention
Solution Approach 1:
The system maintains continuous dynamic light output behavior throughout all operational states. Even when presence is detected and interaction mode changes, the lighting device continues to operate with dynamic characteristics (using the second time constant) rather than switching to static mode. This continuous dynamic action ensures attention remains sustained on the target object without interruption or loss of engagement.
Solution Approach 2:
The lighting device maintains dynamic behavior across different operational states by adjusting the time constant rather than switching between dynamic and static modes. The system uses different time constant values for different states (first time constant for no presence, second time constant for presence detected), but both states maintain dynamic light output characteristics, ensuring continuous attention engagement.
3Speed
If fast dynamic light output component is used, then attention is quickly attracted, but the effect is short-lived and monotonous
Solution Approach 1:
The system dynamically switches between two time constant values based on operational state. When no presence is detected, the first time constant provides rapid attention attraction. When presence is detected, the system transitions to the second time constant (longer duration) to sustain attention engagement, creating a dynamic response that adapts to user interaction state and prevents monotony.
Solution Approach 2:
The system changes the time constant parameter from a first value (for rapid response) to a second value with longer duration (for sustained engagement) based on presence detection. This parameter change allows the lighting device to provide both quick attention attraction and prolonged engagement, eliminating the limitation of short-lived effects.
Data Source
AI summary
The present invention relates to a lighting device for illuminating a target object with the objective to draw a person's attention to this target object. It alternatingly provides a relatively fast dynamic light output component and a relatively slow dynamic light output component, the former being predominantly for triggering a person's attention towards a target object, while the latter is mainly for enhancing the visual appearance of the target object, thereby keeping someone's attention for that object. For this purpose, the lighting device is arranged to provide a primary light output alternatingly comprising a first light output component and a second light output component. The lighting device comprises a switching controller for switching between the first light output component and the second light output component after a time interval. The primary light output has a perceived light intensity that remains constant over time within a margin of 10%. Each of the first and second light output components is characterized by a light output characteristic. The light output characteristic for the first light output component varies over time according to a first waveform, and the light output characteristic for the second light output component varies over time according to a second waveform. Each of the first and second waveforms is characterized by a time constant. The time constant has a first value for the first waveform and a second value for the second waveform, the first value being lower than the second value. The time interval for switching between the first and second light output components is between 0.1 seconds and 30 seconds.