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Lighting device

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.
Owner:SIGNIFY HLDG BV

Lighting device

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.
Owner:SIGNIFY HLDG BV
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