Vehicle Mirror Light Guide Diffusing Grooves
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Solution Overview
Problem
Existing blind spot warning and turn signal indication devices in vehicle side view mirrors emit excessively strong light, causing eye irritation and potentially hazardous dazzling effects for drivers, while adding diffusing agents to homogenize light increases manufacturing costs.
Innovation Solution
The device incorporates a blind spot warning unit with a light guiding member and a turn signal indication unit, both featuring light diffusing and reflective surfaces to distribute light uniformly across the mirror, eliminating the need for diffusing agents and reducing eye strain without increasing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lighting elements are mounted in the side view mirror housing to alert drivers of blind spot vehicles, then blind spot warning function is improved, but light intensity becomes excessively strong causing eye irritation and potential accidents
Solution Approach 1:
A light guide member is introduced as an intermediary between the lighting element and the mirror surface. The light guide member receives light from the lighting element and guides it to the mirror surface, transforming the direct strong light into a diffused illumination pattern that warns drivers without causing eye irritation.
Solution Approach 2:
The lighting element uses different colors (red, yellow, green) to indicate different blind spot conditions. This color coding system provides intuitive visual information to drivers while the light guide member ensures the light intensity remains comfortable for viewing.
2Illumination intensity
If diffusing agents are added to homogenize light beams in alarming devices and turn signal indication devices, then light uniformity is improved, but manufacturing costs are significantly increased
Solution Approach 1:
The patent replaces chemical diffusing agents with a mechanical/optical structure - the light guide member with grooves and reflective surfaces. This structural approach achieves light homogenization through physical light guiding and reflection mechanisms rather than chemical diffusion, eliminating the need for expensive diffusing agents.
Solution Approach 2:
The light guide member changes the spatial distribution parameters of light by using grooves to scatter light in multiple directions and reflective surfaces to redirect light paths. This transforms concentrated point-source light into a uniform area illumination without adding materials.
3Reliability
If turn signal indication devices are activated to alert other drivers during lane changes, then turn signal indication function is improved, but light intensity becomes dazzling and negatively affects driving safety
Solution Approach 1:
The light guide member serves as an intermediary that receives turn signal light and redistributes it across the mirror surface. This mediation transforms the potentially dazzling direct light from the turn signal indicator into a comfortable, uniform illumination that effectively communicates the turn signal intent without harming driver vision.
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 generates uniform, bright alerts for blind spots and turn signals, enhancing driver safety by preventing eye irritation while maintaining cost-effectiveness through the use of innovative light guiding and reflective technologies.
Implementation Method 1
The plurality of grooves diffuses light emitted by the light emitting diode lamp
Implementation Method 2
the plurality of reflective faces reflects the diffused light to uniformly pass outwardly through the light output face
Implementation Method 3
the plurality of troughs diffuses light emitted by the light-emitting element
Implementation Method 4
the plurality of reflective surfaces reflects the diffused light to uniformly pass outwardly through the light output surface and the second light transmitting area of the mirror
Data Source
AI summary
A blind spot warning and turn signal indication light-emitting device for a vehicle side view mirror includes a mirror seat, a blind spot warning unit and a turn signal indication unit both mounted on the mirror seat. The blind spot warning unit includes a light guiding member having a light incident face aligned with a light emitting diode lamp and provided with a plurality of grooves to diffuse light emitted by the light emitting diode lamp. The turn signal indication unit includes a turn signal light guide having a light incident surface aligned with light emitting elements and provided with a plurality of troughs to diffuse light emitted by the light emitting elements. The turn signal light guide further includes an operating surface having reflective surfaces to reflect the diffused light to uniformly pass outwardly through a mirror of the vehicle side view mirror.