Vehicle Lamp Lightguide Recess Geometry for Dark Spot Removal

The patent applies local quality by differentiating the reflection elements into two distinct types: standard linear reflection elements for the distal section and rounded reflection elements for the proximal section. This local differentiation allows each section to have optimized light reflection characteristics, with rounded elements specifically addressing the dark spot problem in the proximal area by redirecting light that would otherwise be lost.

The output surface is segmented into two distinct sections: a proximal output section and a distal output section. Each section is served by different types of reflection elements, allowing independent optimization of light distribution for each zone. This segmentation enables targeted solutions for the specific lighting problems in different areas of the output surface.

Instead of completely redesigning the entire prism optics geometry, the patent applies partial action by introducing only rounded reflection elements in the specific proximal section where the dark spot problem occurs. The majority of the reflection elements remain as standard linear elements, allowing use of existing moulds for most of the structure while adding minimal modifications only where needed.

The patent creates a hybrid reflection element system that combines static linear reflection elements with dynamically optimized rounded reflection elements in specific positions. This allows the system to adapt to the specific lighting requirements of different sections without requiring complete geometric reconfiguration of the entire optics, thereby reducing manufacturing complexity.