Light Guide Housing for Pivoting Motor Vehicle Headlights
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Solution Overview
Problem
Motor vehicle headlights with pivotable light emitting devices often damage light guides due to movement within the engine compartment, causing snagging on internal components.
Innovation Solution
The light guide is housed within a guide housing that allows controlled movement, restricting its freedom to prevent damage during pivoting, with sections of the light guide arranged in multiple housings to accommodate curvature and ensure protection, and a pivoting device enabling adaptive cornering light functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the light emitting device is made pivotable to enable adaptive cornering light functionality, then the adaptability and lighting performance are improved, but the light guide may snag on edges of components inside the engine compartment leading to damage
Solution Approach 1:
The light guide is divided into multiple sections, with at least one section arranged in a light guide housing that allows controlled movement. This segmentation enables the light guide to accommodate pivoting movements while protecting vulnerable sections from snagging on engine compartment components.
Solution Approach 2:
A light guide housing is introduced as an intermediary structure between the light guide and the engine compartment components. This housing provides a controlled environment that guides the light guide's movement and prevents direct contact with potential snagging edges, thereby protecting the light guide while maintaining pivoting functionality.
2Adaptability or versatility
If the light guide is made movable to accommodate pivoting of the light emitting device, then the adaptability is improved, but the light guide may get caught on neighboring components causing damage
Solution Approach 1:
The light guide housing is designed to dynamically accommodate the movement of the light guide during pivoting operations. The housing allows controlled movement in predetermined directions while providing protection against uncontrolled movements that could cause snagging on neighboring components.
Solution Approach 2:
The light guide housing acts as a protective intermediary that mediates between the movable light guide and the stationary engine compartment components. It provides a controlled path for movement and prevents direct interaction between the light guide and potential hazard zones.
3Reliability
If the light guide is guided within a light guide housing to control movement, then the protection from damage is improved, but the mobility and freedom of movement are restricted
Solution Approach 1:
The light guide housing is designed with dynamic characteristics that allow controlled movement of the light guide within predetermined boundaries. The housing provides protection while maintaining necessary mobility through its structural design that accommodates pivoting-induced movements.
Solution Approach 2:
The light guide housing employs flexible or compliant structural elements that allow the light guide to move within the housing during pivoting operations. This flexibility ensures protection from external damage while maintaining the necessary degrees of freedom for adaptive lighting functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for controlled movement of the light guide during pivoting, preventing damage and ensuring necessary mobility, thereby extending the light guide's service life and maintaining functionality.
Implementation Method 1
the light guide (7) having a light coupling surface, with the light generated by the illuminant (2) impinging on the light coupling surface and entering into the light guide (7), with the light being guided inside of the light guide (7) to a light exit surface of the light guide (7)
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
Device (1) for generating and emitting light, wherein the device (1) is preferably intended for a motor vehicle headlight, comprising: a light source (2), a light emitting device (3), wherein the light emitting device (3) comprises a holding device (4) to which a light emitter (16) and an optical system (15) are attached, wherein the light emitter (16) emits the light onto the optical system (15) and the optical system (15) is configured to generate a light distribution, a pivoting device (5) with which the light emitting device (3) can be pivoted about at least one pivoting axis (6), and at least one light guide (7) which directs the light generated by the light source (2) to the light emitting device (3), wherein at least one section of the at least one light guide (7) is arranged in at least one light guide housing (8),so that the at least one section of the at least one light guide (7) arranged in the at least one light guide housing (8) is guided within the light guide housing (8) when the light guide (7) is moved due to a pivoting of the light emitting device (3) by the pivoting device (5).