Brake Lamp Stripe Layout for Distance Recognition
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Solution Overview
Problem
Conventional vehicle brake lamps struggle to effectively alert following vehicles of a braking situation at a distance, as the stripe pattern recognition becomes less clear when the following vehicle is far away.
Innovation Solution
A vehicle brake lamp design featuring alternately disposed striped light emitting regions and non-light emitting regions, with the non-light emitting regions having a wider extension width than the non-light emitting portions within the striped regions, ensuring the stripe pattern is recognizable from various distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If strip-shaped light emitting portions are alternately disposed with non-light emitting portions to create a stripe pattern, then the lighting becomes clearly recognizable at close distance, but the stripe pattern cannot be recognized when the following vehicle is at a distance
Solution Approach 1:
The brake lamp is divided into multiple striped light emitting regions separated by non-light emitting regions. Each striped light emitting region contains alternating strip-shaped light emitting portions and non-light emitting portions. This segmentation creates a hierarchical stripe pattern that maintains recognizability at both close and distant distances.
Solution Approach 2:
The invention extends the stripe pattern from a single-dimensional alternating pattern to a two-dimensional hierarchical structure. The first level of stripes is formed by light emitting portions and non-light emitting portions within each striped light emitting region. The second level of stripes is formed by the alternation of multiple striped light emitting regions with non-light emitting regions between them, creating a macro-stripe pattern visible from distance.
2Ease of operation
If the entire light emitting surface lights up in a uniform stripe pattern, then close-distance recognition is improved, but distance-independent recognition deteriorates
Solution Approach 1:
Different regions of the light emitting surface are assigned different functions. The non-light emitting regions serve as separators that define the macro-stripe pattern visible from distance, while the striped light emitting regions contain the detailed alternating patterns for close-distance recognition. This local differentiation ensures both distance-independent and close-distance recognizability.
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 ensures that the driver of a following vehicle can reliably recognize the braking situation through the stripe pattern lighting, regardless of the distance, thereby enhancing road safety and contributing to a sustainable transportation system.
Implementation Method 1
a plurality of strip-shaped light emitting portions and non-light emitting portions are alternately disposed
Data Source
AI summary
A vehicle brake lamp includes a plurality of striped light emitting regions 15 and a plurality of non-light emitting regions 16. In each of the striped light emitting regions 15, a plurality of strip-shaped light emitting portions 13 and non-light emitting portions 14 are alternately disposed. The non-light emitting regions 16 does not have a light emitting portion. The striped light emitting regions 15 and the non-light emitting regions 16 are alternately disposed. An extension width w1 of each of the non-light emitting regions 16 in a disposition direction is set to be larger than an extension width w2 of each of the non-light emitting portions 14 in the striped light emitting region 15 in a disposition direction.