SMARTLIGHTNATURE: DESIGNING EMOTIONALLY RESPONSIVE 3D-PRINTED LAMPS INTEGRATED WITH SMARTWATCH MOOD DETECTION FOR PERSONALIZED USER EXPERIENCE

Abstract

This research introduces SmartLightNature, an innovative convergence of biophilic design, wearable emotion detection, and 3D-printed adaptive lighting aimed at transforming everyday environments into emotionally responsive spaces. The system leverages real-time biometric data—including heart rate variability, stress levels, and sleep patterns—captured from commercial smartwatches to dynamically modulate the color, intensity, and behavior of light emitted by an organically shaped lamp. Designed using principles from neuroaesthetics, color psychology, and user experience (UX) research, the lamp embodies a silent yet empathetic interface that supports cognitive well-being and mood regulation in domestic contexts.

Employing additive manufacturing, the 3D-printed lamp shells integrate nature-inspired geometries such as spirals, fractals, and leaf veins to stimulate visual familiarity and psychological comfort. The study builds on the Mehrabian–Russell PAD model, mapping emotional states to lighting responses, thereby creating a closed-loop system of emotional feedback. While the current prototype emphasizes technical validation—such as latency, light accuracy, and system stability—future development will expand toward participatory studies to measure long-term emotional impact.

SmartLightNature exemplifies a shift toward empathetic environmental design, where light evolves from a utilitarian medium into a cognitive and emotional co-regulator. By incorporating machine learning and multisensory input in future iterations, the system holds potential for personalization, accessibility, and mental health enhancement across domains including healthcare, education, and residential well-being. This study thus lays a foundational framework for integrating smart technologies, sustainable fabrication, and psychological design into holistic, user-centric lighting ecosystems.