Adaptive Mirror Lighting Control for Head-Turn Glare Reduction
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Solution Overview
Problem
Conventional mirrors with integrated lighting systems often cause glare when users move their heads, leading to discomfort and reduced visibility, as the illumination level is typically controlled based on distance rather than head orientation.
Innovation Solution
An adaptive lighting system with individually controllable light sources positioned around the mirror surface, a sensor to detect head orientation, and a controller to adjust light emission accordingly, reducing light towards the eyes when the head is turned sideways, upwards, or downwards, and increasing light on the opposite side for better illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light sources are provided near the edges of the mirror or behind a half-translucent mirror to illuminate the user's face, then the illumination intensity is improved, but glare is caused when the user moves their head
Solution Approach 1:
The lighting system is divided into multiple individually controllable light sources positioned at different locations around the mirror. Each light source can be independently adjusted in intensity based on the user's head orientation, allowing selective illumination while minimizing glare to the user's eyes.
Solution Approach 2:
The lighting system dynamically adjusts the intensity of individual light sources in real-time based on the detected head orientation. The controller modifies light emission levels according to the user's head position, creating a dynamic adaptation that prevents glare while maintaining illumination.
2Ease of operation
If the illumination level is controlled based on distance from the mirror, then the ease of operation is improved, but the adaptability to different head orientations is insufficient
Solution Approach 1:
The system uses sensors to detect the user's head orientation and provides feedback to the controller, which then adjusts the light source intensities accordingly. This closed-loop feedback mechanism enables the system to adapt to different head orientations automatically, going beyond simple distance-based control.
Solution Approach 2:
The system changes the illumination parameters (intensity of individual light sources) based on detected head orientation parameters. By monitoring and responding to changes in head position, the system dynamically adjusts lighting parameters to maintain optimal illumination while preventing glare.
Data Source
AI summary
An adaptive lighting system (100), a (virtual) mirror arrangement, a method of controlling light sources of an adaptive light sources, a method of controlling a virtual mirror and a computer program product are provided. The adaptive lighting system is for a mirror component that is configured to show a mirror image of the user at the mirror surface of the mirror component. The adaptive lighting system comprises a plurality of individually controllable light sources (111 . . . 119), a sensor (102), and a controller (104). The sensor detects a relative orientation of the head of the user with respect to the mirror surface. The controller generates control signals (121 . . . 129) for the individually controllable light sources on the basis of the sensor signal. The controller generates the control signals to obtain a lower emission of light towards eyes of the user if the sensor signal indicates that the head is turned left sidewards, upwards, right sidewards and/or downwards.