Movable Vehicle Lighting Modules for Unobstructed Night Beam Output
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Solution Overview
Problem
Motor-vehicle lighting devices face challenges in maintaining a consistent luminous signature between daytime and nighttime modes due to regulatory constraints on light beam intensity, where the signaling module obstructs the lighting module's light beam when retracted, failing to meet minimum intensity requirements.
Innovation Solution
A motor-vehicle lighting device with a moveable signaling module and a moveable lighting module, where the signaling module retracts to reveal the lighting module's position, allowing the lighting module to occupy the space left by the signaling module, thus avoiding obstruction and meeting regulatory light beam intensity requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the signaling module is retracted to maintain luminous signature consistency, then the luminous appearance remains the same between daytime and nighttime modes, but the retracted signaling module obstructs the light beam emitted by the lighting module, causing the light intensity to fail to meet minimum regulatory requirements
Solution Approach 1:
The patent introduces a third spatial dimension by making the lighting module movable in a direction perpendicular to the signaling module's retraction path. This allows the lighting module to occupy the space previously occupied by the retracted signaling module, eliminating obstruction while maintaining luminous signature consistency. The lighting module moves from a hidden position to a visible position in the vertical dimension, expanding its emission zone without interfering with the signaling module's horizontal retraction movement.
2Illumination intensity
If the signaling module is retracted sufficiently to avoid obstructing the light beam, then the light intensity requirements are met, but the available space is constrained by other parts of the motor vehicle, preventing sufficient retraction
Solution Approach 1:
The patent applies dynamics by making both the signaling module and lighting module movable rather than fixed. The signaling module can retract horizontally, and the lighting module can move vertically to occupy the space freed by the signaling module. This dynamic arrangement allows the system to adapt to space constraints by coordinating movements of both modules, ensuring the lighting module achieves sufficient emission zone without requiring the signaling module to retract beyond available space.
3Illumination intensity
If the lighting module is positioned to emit light beam without obstruction, then the light intensity meets regulatory requirements, but the lighting module must occupy space that conflicts with the retracted signaling module's position
Solution Approach 1:
The patent resolves the spatial conflict by utilizing a third dimension. When the signaling module retracts horizontally, the lighting module moves vertically to occupy the space previously occupied by the signaling module. This vertical movement expands the lighting module's emission zone volume without conflicting with the horizontal retraction path of the signaling module, allowing both modules to coexist in their respective operational positions.
Data Source
AI summary
The invention includes a lighting device with a signaling module that can move in at least a first direction and a lighting module that can move in a second direction different from the first direction. The movable lighting module being able to take a position that is invisible and a position that is visible from outside the lighting device. The lighting device further including a controller designed to control a movement of the lighting module such that: in a first mode, called daytime mode, the lighting module assumes the invisible position; in a second mode, called nighttime mode, the lighting module assumes the visible position. The controller moves of the signaling module such that at least one part of the signaling module moves in the first direction in order to authorize a movement of the lighting module in the second direction from the invisible position to the visible position.