Automotive Lamp Road Pattern Projection for Rear Visibility
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Solution Overview
Problem
Vehicles approaching from the rear side of a vehicle may not easily recognize the reversing movement or open door of a vehicle due to the positioning of reversing lamps, leading to potential accidents.
Innovation Solution
An automotive lamp system that includes a detection unit to identify the vehicle's state and a lamp unit to form road patterns indicating the reversing movement or open door, which can be seen from the rear side, with the lamp unit's luminous intensity matching or exceeding that of the reversing lamp to ensure visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the reversing lamp is installed on the rear side of the vehicle, then the reversing lamp can indicate reverse movement, but vehicles approaching from the left or right side behind the vehicle cannot easily check the reversing lamp
Solution Approach 1:
The patent transitions from a single-point reversing lamp indication to a two-dimensional road pattern projection on the ground. By projecting light patterns onto the road surface in the direction of vehicle movement, the system provides visibility not only to vehicles directly behind but also to vehicles approaching from side angles, effectively adding a spatial dimension to the reversing indication.
Solution Approach 2:
The patent introduces an intermediary element - the road pattern projection - that serves as a mediator between the reversing lamp and approaching vehicles. Instead of relying solely on direct viewing of the reversing lamp, the light pattern projected on the road acts as an intermediate visual indicator that can be detected from multiple angles, enhancing recognizability for vehicles approaching from various directions.
2Reliability
If the lamp unit projects road pattern to the rear of the vehicle, then approaching vehicles can recognize the driving state, but the device complexity increases with detection unit and control unit
Solution Approach 1:
The lamp unit is designed to perform multiple functions: it serves as both the reversing indication lamp and the road pattern projection device. By integrating these functions into a single component, the patent reduces overall system complexity while maintaining the ability to transmit driving state information to approaching vehicles through visual patterns on the road surface.
Solution Approach 2:
The patent combines the detection unit, control unit, and lamp unit into an integrated system where the lamp unit itself performs both illumination and pattern projection functions. This merging of components simplifies the overall device structure while achieving the goal of reliable information transmission about vehicle driving state to approaching vehicles.
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
Prevents accidents by allowing approaching vehicles to recognize the vehicle's state through visible road patterns, enhancing safety by ensuring that the reversing movement or open door is clearly indicated to vehicles behind.
Implementation Method 1
a lamp unit configured to irradiate light that forms a road pattern indicating the driving state of the vehicle
Data Source
AI summary
An automotive lamp provides information to vehicles approaching from at least one side of the rear of a vehicle of the driving state of the vehicle by irradiating light for forming a road pattern indicating the driving state of the vehicle. The automotive lamp includes a detection unit configured to detect a driving state of a vehicle, a reversing lamp configured to indicate a reverse movement of the vehicle, a lamp unit configured to irradiate light for forming a road pattern indicating the state of the vehicle to the rear of the vehicle such that the road pattern can be formed on at least one side of the vehicle. A control unit is configured to control the lamp unit based on the detected driving state of the vehicle. The luminous intensity of the lamp unit is equal to, or greater than, the luminous intensity of the reversing lamp.