System and method for dimming a lighting device
WO2026125325A1PCT designated stage Publication Date: 2026-06-18SIGNIFY HOLDING BV
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SIGNIFY HOLDING BV
- Filing Date
- 2025-12-09
- Publication Date
- 2026-06-18
AI Technical Summary
⚠Technical Problem
Current artificial lighting systems in animal farming, particularly poultry farming, cause heat stress and discomfort due to a 'dim-to-warm' lighting behavior, which negatively affects animal health and wellbeing.
⚗Method used
A lighting system that incorporates a first white light source and a green light source, controlled by a controller to maintain a 'dim-to-green' behavior, where the ratio of white to green luminous flux decreases as the total luminous flux decreases, mimicking natural sunlight patterns to enhance animal health and wellbeing.
🎯Benefits of technology
The 'dim-to-green' lighting system improves animal health and wellbeing by stimulating cognitive behavior, promoting exploration and reducing stress, while maintaining feeding and growing activities.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure EP2025086019_18062026_PF_FP_ABST
Abstract
Lighting systems and methods for controlling lighting systems are disclosed. The system comprises a first white light source for emitting first white light with a first correlated color temperature, a green light source for emitting green light, and a controller for individually controlling the first white light source and the green light source. The controller is configured to receive a signal representing a target luminous flux; to determine, in response to receiving the signal representing a target luminous flux, based on the target luminous flux, a first luminous flux for the first white light source and a second luminous flux for the green light source; and to control the first white light source to emit the first white light with the first luminous flux and to control the green light source to emit the green light with the second luminous flux. Herein, in a first operational mode, a ratio between the first luminous flux and the second luminous flux decreases with the target luminous flux in an interval between a first target luminous flux value and a second target luminous flux value, lower than the first target luminous flux value.
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