Side View Mirror Illuminating Device Uniform Light Diffusion
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Solution Overview
Problem
Side view mirror illuminating devices that alert drivers to vehicles in blind spots can dazzle drivers, increasing the risk of accidents, especially at night when pupils dilate.
Innovation Solution
An illuminating device with a light transmittable shield featuring refractive units and light diffusing particles that refract and diffuse light beams, preventing glare by distributing light uniformly and softly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lighting element is mounted in the side view mirror housing to alert drivers of blind spot vehicles, then the alert function is improved, but the light beams can dazzle the driver's eyes and increase accident risk
Solution Approach 1:
The patent introduces a light diffusing plate as an intermediary component between the light source and the driver's eye. This plate scatters the direct light beams into diffused light, maintaining the alert function while eliminating the harmful dazzle effect. The light diffusing plate acts as a mediator that transforms the light characteristics to resolve the contradiction between effective alerting and driver safety.
Solution Approach 2:
The patent applies different optical properties to different regions of the light transmittable shield. The light diffusing plate has specific optical characteristics that differ from other parts of the housing, creating localized light diffusion in the driver's line of sight while maintaining other functional areas unchanged. This local modification addresses the dazzle problem without compromising the overall alert system effectiveness.
2Illumination intensity
If direct light beams are emitted to alert the driver, then the alert effectiveness is improved, but the light intensity can cause eye strain and accidents especially at night
Solution Approach 1:
The light diffusing plate serves as an intermediary that reduces light intensity in the driver's line of sight while maintaining alert effectiveness. By scattering the direct light paths, the plate lowers the intensity of light reaching the driver's eyes, thereby preventing eye strain and accidents while still providing sufficient visual alerting through the side view mirror.
3Illumination intensity
If high intensity light is used to ensure visibility in blind spot alert, then the alert visibility is improved, but the risk of dazzling the driver increases
Solution Approach 1:
The light diffusing plate acts as a safety intermediary that decouples the relationship between light intensity and driver dazzle. It allows the system to maintain high alert visibility through the side view mirror structure while simultaneously reducing the intensity of light that could reach the driver's eyes directly, thereby preserving driving safety even when using relatively intense light sources for blind spot detection.
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 device ensures that light beams are refracted and diffused to avoid dazzling the driver, providing a safer alert system for vehicles in blind spots without causing eye strain.
Implementation Method 1
Light beams emitted from the first light emitting diode pass through and are refracted by the plurality of refractive faces
Implementation Method 2
The light beams are then refracted by the plurality of light diffusing particles into diffused light beams passing through the second face of the light transmittable shield
Data Source
AI summary
An illuminating device (28) includes a light transmittable shield (38) having a first face (40) and a second face (42) spaced from the first face (40) in a direction. A chamber (43) is defined in the first face (40) and includes an operative face (46) spaced from the second face (42) in the direction. A plurality of refractive units (52) is provided on the operative face (46). Each refractive unit (52) includes a plurality refractive faces (54). Each refractive face (54) is at a non-parallel and non-perpendicular angle (55) to the operative face (46). Light diffusing particles (53) are disposed between the operative face (46) and the second face (42) and are located in the refractive units (52). At least one light emitting diode (34, 36) is fixed in relation to the light transmittable shield (38), is located in the chamber (43), and faces the operative face (46).