Multi-Color Rear Lamp Layout for Contiguous Red Illumination
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Solution Overview
Problem
Existing rear vehicle lamps face challenges in meeting illuminated surface area requirements while being space-efficient and aesthetically flexible, as current designs either lack flexibility or do not effectively combine different light functions.
Innovation Solution
A lamp design featuring a light transmissive cover with a red first illuminated surface area and a clear second illuminated surface area, where a first LED emitter is located beneath the red area, a second white LED emitter is beneath the clear area, and a third red LED emitter emits red light through the clear area, forming a contiguous red surface area, allowing for flexible and efficient illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a standard nominal 4 inch circular lamp or traditional oval lamp is used, then the illuminated surface area requirement is met, but the space efficiency is reduced and design flexibility is limited
Solution Approach 1:
The lamp is divided into multiple functional segments: a first compartment housing red LEDs for stop/tail/turn functions, and a second compartment housing white LEDs for backup lighting. This segmentation allows each compartment to be optimized independently for its specific function, achieving the required illuminated surface area while minimizing overall housing volume through efficient spatial arrangement.
Solution Approach 2:
The patent transitions from traditional two-dimensional circular or oval lamp faces to a three-dimensional arrangement with vertically stacked compartments. The first compartment extends vertically with red LEDs arranged in multiple rows, while the second compartment provides additional illumination depth. This dimensional change allows achieving required illuminated area with reduced horizontal footprint, improving space efficiency.
2Reliability
If separate dedicated lamps are used for stop, tail, turn, and backup functions, then functional reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple lamp functions into a single integrated housing: the first compartment contains red LEDs for stop, tail, and turn signal functions, while the second compartment contains white LEDs for backup lighting. This consolidation maintains functional reliability by providing dedicated LED groups for each function while reducing overall device complexity compared to using separate physical lamps for each function.
Solution Approach 2:
The first compartment serves multiple functions simultaneously - it provides stop lamp illumination, tail lamp illumination, and turn signal illumination through the red LEDs. The second compartment provides backup lighting functionality. This multi-functionality within a single lamp assembly maintains reliability across all functions while simplifying the overall vehicle lighting system compared to using separate dedicated lamps for each function.
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
This design effectively meets illuminated surface area requirements while providing a more space-efficient and aesthetically flexible solution, allowing for varied and improved lamp designs that comply with regulatory standards.
Implementation Method 1
a first LED light emitter located directly beneath the red first area
Implementation Method 2
a white second LED light emitter located directly beneath the clear second area
Implementation Method 3
a third red LED light emitter, also located directly beneath said clear second area, said third red LED light emitter for emitting red light through said clear second area
Data Source
AI summary
A lamp for the rear of a vehicle is disclosed with a light transmissive cover having a red first illuminated surface area and a clear second illuminated surface area. It has a first LED light emitter located directly beneath the red first area, a second LED light emitter located directly beneath the clear second area, and a third LED light emitter, also located directly beneath said clear second area. The third red LED light emitter is for emitting red light through the clear second area simultaneously with light transmitted through the red first area, whereby the first and second areas are adapted to collectively form a contiguous red illuminated surface area.